Fix Rust CI cache reuse

.gitea/workflows/ci.yml

@@ -15,27 +15,6 @@ jobs:
       - name: Check out source
         uses: actions/checkout@v4
 
-      - name: Install Lore CLI
-        run: |
-          scripts/install-lore.sh "$RUNNER_TEMP/lore-bin"
-          echo "$RUNNER_TEMP/lore-bin" >> "$GITHUB_PATH"
-
-      - name: Select Lore asset branch
-        run: |
-          branch=main
-          if [[ "$GITHUB_EVENT_NAME" == pull_request ]]; then
-            branch="$(python3 -c 'import json, os; e=json.load(open(os.environ["GITHUB_EVENT_PATH"], encoding="utf-8")); p=e["pull_request"]; print(p["head"]["ref"] if p["head"]["repo"]["full_name"] == os.environ["GITHUB_REPOSITORY"] else "main")')"
-          fi
-          echo "LORE_BRANCH=$branch" >> "$GITHUB_ENV"
-          echo "Using Lore branch: $branch"
-
-      - name: Fetch assets from Lore
-        env:
-          LORE_CI_USERNAME: ${{ secrets.LORE_CI_USERNAME }}
-          LORE_CI_PASSWORD: ${{ secrets.LORE_CI_PASSWORD }}
-          LORE_AUTH_URL: https://auth.eirexe.moe
-        run: scripts/update-assets.sh "$LORE_BRANCH"
-
       - name: Install Rust toolchain
         run: |
           curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | \
@@ -44,9 +23,9 @@ jobs:
           "$HOME/.cargo/bin/rustup" toolchain install nightly-2026-09-14 --profile minimal
 
       - name: Cache Rust dependencies and build artifacts
-        uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        uses: Swatinem/rust-cache@779680da715d629ac1d338a641029a2f4372abb5 # v2.8.2
         with:
-          prefix-key: v2-rust
+          prefix-key: v1-rust
           shared-key: linux-nightly
           cache-bin: false
 
@@ -71,148 +50,3 @@ jobs:
 
       - name: Run unit tests
         run: cargo test --locked --lib -j 4
-
-  production-build:
-    runs-on: ubuntu-latest
-    timeout-minutes: 45
-    steps:
-      - name: Check out source
-        uses: actions/checkout@v4
-
-      - name: Install Lore CLI
-        run: |
-          scripts/install-lore.sh "$RUNNER_TEMP/lore-bin"
-          echo "$RUNNER_TEMP/lore-bin" >> "$GITHUB_PATH"
-
-      - name: Select Lore asset branch
-        run: |
-          branch=main
-          if [[ "$GITHUB_EVENT_NAME" == pull_request ]]; then
-            branch="$(python3 -c 'import json, os; e=json.load(open(os.environ["GITHUB_EVENT_PATH"], encoding="utf-8")); p=e["pull_request"]; print(p["head"]["ref"] if p["head"]["repo"]["full_name"] == os.environ["GITHUB_REPOSITORY"] else "main")')"
-          fi
-          echo "LORE_BRANCH=$branch" >> "$GITHUB_ENV"
-          echo "Using Lore branch: $branch"
-
-      - name: Fetch assets from Lore
-        env:
-          LORE_CI_USERNAME: ${{ secrets.LORE_CI_USERNAME }}
-          LORE_CI_PASSWORD: ${{ secrets.LORE_CI_PASSWORD }}
-          LORE_AUTH_URL: https://auth.eirexe.moe
-        run: scripts/update-assets.sh "$LORE_BRANCH"
-
-      - name: Install Rust toolchain
-        run: |
-          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | \
-            sh -s -- -y --profile minimal
-          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
-          "$HOME/.cargo/bin/rustup" toolchain install nightly-2026-09-14 --profile minimal
-
-      - name: Install Windows build tooling
-        run: |
-          "$HOME/.cargo/bin/rustup" target add x86_64-pc-windows-msvc --toolchain nightly-2026-09-14
-          "$HOME/.cargo/bin/cargo" install cargo-xwin --locked
-
-      - name: Cache production Rust dependencies and build artifacts
-        uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
-        with:
-          prefix-key: v2-rust
-          shared-key: linux-nightly-production
-          cache-bin: false
-
-      - name: Install Linux dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install --no-install-recommends -y \
-            clang-19 \
-            libasound2-dev \
-            libudev-dev \
-            libusb-1.0-0-dev \
-            libwayland-dev \
-            libx11-dev \
-            libxfixes3 \
-            libxi6 \
-            libxkbcommon-dev \
-            libxkbcommon-x11-0 \
-            blender \
-            lld-19 \
-            llvm-19 \
-            mesa-vulkan-drivers \
-            mold \
-            pkg-config
-          sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-19 100
-          sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-19 100
-          echo "/usr/lib/llvm-19/bin" >> "$GITHUB_PATH"
-          rm -f "$HOME/.cache/cargo-xwin/clang-cl"
-
-      - name: Install pinned Blender
-        run: |
-          scripts/install-blender.sh "$RUNNER_TEMP/blender"
-          echo "BLENDER=$RUNNER_TEMP/blender/blender" >> "$GITHUB_ENV"
-
-      - name: Preprocess assets
-        run: cargo run --locked --bin process-assets --no-default-features --features debug_features -j 4
-
-      - name: Verify processed battlefield asset
-        run: |
-          python3 - <<'PY'
-          import json
-          import struct
-
-          path = "imported_assets/Default/stages/battlefield/bf2.blend"
-          with open(path, "rb") as asset:
-              header = asset.read(12)
-              if len(header) != 12:
-                  raise SystemExit(f"processed asset is truncated: {path}")
-              magic, version, length = struct.unpack("<4sII", header)
-              if magic != b"glTF" or version != 2 or length != asset.seek(0, 2):
-                  raise SystemExit(f"processed asset is not a valid GLB: {path}")
-              asset.seek(12)
-              json_length, chunk_type = struct.unpack("<II", asset.read(8))
-              if chunk_type != 0x4E4F534A:
-                  raise SystemExit(f"processed asset has no JSON chunk: {path}")
-              document = json.loads(asset.read(json_length))
-          meshes = document.get("meshes", [])
-          if not meshes:
-              raise SystemExit(f"processed asset contains no meshes: {path}")
-          print(f"{path}: {len(meshes)} meshes, {length} bytes")
-          PY
-
-      - name: Build production binary
-        run: cargo build --locked --profile production --no-default-features --features debug_features -j 4
-
-      - name: Build Windows production binary
-        run: |
-          clang --version
-          cargo xwin build --locked --target x86_64-pc-windows-msvc --profile production --no-default-features --features debug_features -j 4 --bin shinespark
-
-      - name: Verify production binary is not Bevy/Rust dynamically linked
-        run: |
-          ! readelf -d target/production/shinespark | grep -E 'libbevy_dylib|libstd-.*\.so'
-
-      - name: Package Linux Steam depot
-        if: github.event_name == 'push' && github.ref == 'refs/heads/master'
-        run: |
-          mkdir -p build/game
-          cp target/production/shinespark build/game/shinespark
-          cp target/x86_64-pc-windows-msvc/production/shinespark.exe build/game/shinespark.exe
-          cp -R imported_assets build/game/imported_assets
-
-      - if: github.event_name == 'push' && github.ref == 'refs/heads/master'
-        uses: CyberAndrii/steam-totp@v1
-        name: Generate Steam TOTP
-        id: steam-totp
-        with:
-          shared_secret: ${{ secrets.STEAM_SHARED_SECRET }}
-
-      - name: Deploy Linux build to Steam
-        if: github.event_name == 'push' && github.ref == 'refs/heads/master'
-        uses: game-ci/steam-deploy@v3
-        with:
-          username: ${{ secrets.STEAM_USERNAME }}
-          password: ${{ secrets.STEAM_PASSWORD }}
-          totp: ${{ steps.steam-totp.outputs.code }}
-          appId: 3409670
-          buildDescription: ${{ github.sha }}
-          rootPath: build
-          depot1Path: game
-          releaseBranch: master

.gitignore

@@ -1,7 +1,6 @@
 /target
 /.jackdaw
 imported_assets
-/assets/
 
 # Local editor configuration
 **/.vscode/
@@ -11,7 +10,3 @@ imported_assets
 *_old.glb
 /replay.json
 *.replay.tmp
-
-# Python debugger formatter tests
-__pycache__/
-*.pyc

Cargo.toml

@@ -6,36 +6,31 @@ authors = [""]
 
 [workspace]
 
-[features]
-default = ["development", "debug_features", "gamecube-adapter"]
-development = ["bevy/dynamic_linking", "bevy/file_watcher", "bevy/embedded_watcher", "hitbox-viewer"]
-tracy = ["bevy/trace_tracy"]
-debug_features = ["bevy/free_camera"]
-gamecube-adapter = ["dep:gc-adapter-neo"]
-hitbox-viewer = ["bevy/bevy_dev_tools", "dep:egui_extras"]
-
 [dependencies]
-bevy = { version = "0.19.1", features = ["asset_processor", "basis-universal", "compressed_image_saver", "bevy_settings"] }
-blake3 = { version = "1.8.5", features = [ "pure" ] }
-itertools = "0.15.0"
+bevy = { version = "0.19", features = ["asset_processor", "basis-universal", "dynamic_linking", "free_camera", "file_watcher", "bevy_settings"] }
+# Loads the scenes you author in the editor (assets/*.bsn) and builds
+# physics colliders from them. An ordinary dependency; remove it if you
+# stop using authored scenes.
 thiserror = "2"
 avian3d = "0.7"
 arrayvec = "0.7.8"
 bevy-inspector-egui = "0.37.0"
 bevy_egui = "0.40.0"
-egui_extras = { version =  "0.34.3", optional = true}
 bevy_ggrs = { git = "https://github.com/gschup/bevy_ggrs" }
 serde = "1.0.229"
 serde_json = "1.0.145"
 bincode = "1.3.3"
 gltf = "1.4.1"
 ron = "0.12.0"
+bitfields = "3.0.0"
 clap = { version = "4.6.6", features = ["derive"] }
+bevy_wind_waker_shader = { git = "https://github.com/lavaeater/bevy_wind_waker_shader.git" }
 fixed = { version = "1.31.0", features = ["serde", "serde-str"] }
 strum = "0.28.0"
 strum_macros = "0.28.0"
 bevy_asset_loader = "0.27.0"
 ron_asset_manager = "0.9.0"
+gc-adapter-neo = { version = "1.0.0", features = ["libusb"] }
 rhai = "1.26.0"
 enum_cycling = "0.2.1"
 enum_cycling_derive = "0.2.1"
@@ -44,17 +39,3 @@ fixed_math = "0.4.1"
 # Enable a large amount of optimization in the dev profile for dependencies.
 [profile.dev.package."*"]
 opt-level = 3
-
-[profile.production]
-inherits = "release"
-lto = "thin"
-codegen-units = 1
-strip = "symbols"
-
-[target.'cfg(not(target_os = "windows"))'.dependencies]
-gc-adapter-neo = { version = "1.1.1", features = ["libusb"], optional = true }
-
-[[bin]]
-name = "hitbox-editor"
-path = "src/bin/hitbox-editor.rs"
-required-features = ["hitbox-viewer"]

README.md

@@ -1,63 +1,12 @@
-# Shinespark
+# Game Test
 
-Fancy heavily advanced platform fighting game
+A Bevy game, editable in the [jackdaw](https://github.com/jbuehler23/jackdaw) editor.
 
-## Debugging fixed-point values with lldb
-
-If using CodeLLDB:
-```json
-"preRunCommands": [
-    "command script import ${workspaceFolder}/tools/lldb_fixed.py"
-]
-```
-
-## Direct P2P Debugging
-
-```text
-# Process 1 owns player 0 and listens on 7000.
-cargo run -- --debug-match --players 2 --local-port 7000 \
-  --net-player 0=local --net-player 1=127.0.0.1:7001
-
-# Process 2 owns player 1 and listens on 7001.
-cargo run -- --debug-match --players 2 --local-port 7001 \
-  --net-player 0=127.0.0.1:7000 --net-player 1=local
-```
-
-## Hitbox viewer
-
-Run the live attack-script previewer with a fighter manifest and attack:
-
-```sh
-cargo run --bin hitbox-editor -- \
-  --manifest fighters/test/test.fighter.ron --attack jab
-```
-
-The timeline is read-only and refreshes through Bevy's asset hot reloading.
-Press Space to pause or resume, use the arrow keys to step, or click and drag
-the timeline to scrub.
-
-## Production Build
-
-```sh
-cargo run --locked \
-  --bin process-assets --no-default-features --features debug_features
-cargo build --locked \
-  --profile production --no-default-features --features debug_features
-```
-
-## Assets
-
-Game assets are managed in Lore rather than Git. Install the Lore CLI, then
-bootstrap or update the local checkout with:
-
-```sh
-scripts/install-lore.sh
-scripts/update-assets.sh
-```
-
-The default Lore branch is `main`; pass another branch explicitly when testing
-coordinated code and asset changes:
-
-```sh
-scripts/update-assets.sh my-feature-branch
-```
+- `cargo run` plays the game standalone; no editor required.
+- Open the folder in jackdaw to author scenes, then hit Play. The
+  editor builds its own artifacts into `.jackdaw/` (gitignored) and
+  never modifies your manifest or lockfile.
+- Gameplay lives in `src/lib.rs` (`GamePlugin`); authored scenes live
+  in `assets/*.bsn`.
+- Components you derive `Reflect` on appear in the editor's inspector
+  automatically; no registration code is needed.

assets/fighters/test/scripts/fair.attack.rhai

@@ -0,0 +1,12 @@
+frame(4);
+hitbox(0,
+    "hand_l",
+    damage("5.0"),
+    vec3("0.0", "0.0", "0.0"),
+    fg32("5.0"),
+    angle_sakurai(),
+    knockback_normal(),
+    knockback("10.0"),
+    fg32("1.0")
+);
+frame(8);

assets/fighters/test/scripts/jab.attack.rhai

@@ -0,0 +1,12 @@
+frame(3);
+hitbox(0,
+    "hand_l",
+    damage("5.0"),
+    vec3("0.0", "0.0", "0.0"),
+    fg32("5.0"),
+    angle(fg32("45.0")),
+    knockback_normal(),
+    knockback("18.0"),
+    fg32("140.0")
+);
+frame(8);

assets/fighters/test/scripts/uptilt.attack.rhai

@@ -0,0 +1,13 @@
+frame(9);
+hitbox(0,
+    "hand_l",
+    damage("5.0"),
+    vec3("1.0", "0.0", "0.0"),
+    fg32("7.0"),
+    angle_sakurai(),
+    knockback_normal(),
+    knockback("10.0"),
+    fg32("1.0")
+);
+
+frame(15);

assets/fighters/test/test.fighter.ron

@@ -0,0 +1,218 @@
+(
+    id: TestFighter,
+    model_path: "fighters/test/test_fighter.gltf",
+    model_scale: "10.0",
+    baked_animation_path: "fighters/test/test.fighterbake",
+    icon: (
+        path: "fighters/test/icon.png",
+    ),
+    attributes: (
+        base_walk_accel: "0.1",
+        stick_walk_accel: "0.16",
+        max_walk_vel: "1.0",
+        ground_friction: "0.1",
+        dash_acceleration_duration: 13,
+        dash_duration: 24,
+        base_dash_accel: "0.1",
+        stick_dash_accel: "0.05",
+        max_dash_vel: "2.0",
+        short_hop_vertical_velocity: "1.45",
+        full_jump_vertical_velocity: "2.0",
+        jump_horizontal_velocity: "0.6",
+        air_jump_horizontal_velocity: "0.96",
+        air_jump_multiplier: "1.0",
+        dash_initial_velocity: "1.4",
+        terminal_velocity: "1.6",
+        gravity: "0.084",
+        weight: "100.0",
+        jumpsquat_duration: 5,
+        landing_iasa: 4,
+        landing_duration: 30,
+
+        max_air_horizontal_velocity: "2.5",
+        air_drift_max: "1.0",
+        air_acceleration_base: "0.03",
+        air_acceleration_stick: "0.01",
+        air_friction: "0.01",
+
+        air_dodge_duration: 49,
+        air_dodge_velocity: "2.790",
+        air_dodge_decay: "0.9",
+        ecb_vertical_midpoint_offset: "0.0"
+    ),
+    camera: (
+        vertical_origin_offset: "8.0",
+        forward_extent: "25.5",
+        backward_extent: "8.5",
+        upward_extent: "15.0",
+        downward_extent: "5.0",
+        visibility_radius: "5.0",
+    ),
+    animations: {
+        Wait: "Idle_Loop_Game",
+        Walk: "Walk_Loop_IK_Game",
+        Run: "Run_Game",
+        Dash: "Dash_Game",
+        JumpSquat: "Jump_Squat_Game",
+        JumpForward: "Jump_Start_IK_Game",
+        JumpBack: "JumpB_Game",
+        LandingSpecial: "SpecialLand_Game",
+        Landing: "Jump_Land_Game",
+        AirDodge: "Idle_Loop_Game",
+        DoubleJumpForward: "Jump_Start_IK_Game",
+        DoubleJumpBack: "JumpB_Game",
+        Fall: "Fall_Loop_Game",
+        Turn: "Turn_Game",
+
+        FlinchGround: "Air_Hit_Game",
+        FlinchAir: "Air_Hit_Game",
+
+        AttackJab1: "Punch_Jab_Game",
+        AttackUpTilt: "Idle_Loop_Game",
+        AttackForwardTilt: "Idle_Loop_Game",
+        AttackDownTilt: "Idle_Loop_Game"
+    },
+    attack_scripts: {
+        NeutralAir: "fighters/test/scripts/fair.attack.rhai",
+        Jab: "fighters/test/scripts/jab.attack.rhai",
+        UpTilt: "fighters/test/scripts/uptilt.attack.rhai",
+        ForwardTilt: "fighters/test/scripts/uptilt.attack.rhai",
+        DownTilt: "fighters/test/scripts/uptilt.attack.rhai",
+    },
+    hurtboxes: [
+        // center one
+        (
+            bone: "spine_01",
+            offset: (x: "0.0", y: "0.0", z: "0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.05",
+            radius: "0.15"
+        ),
+        (
+            bone: "spine_03",
+            offset: (x: "0.0", y: "0.0", z: "0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.05",
+            radius: "0.15"
+        ),
+        (
+            bone: "Head",
+            offset: (x: "0.0", y: "0.125", z: "0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.05",
+            radius: "0.1"
+        ),
+        (
+            bone: "thigh_r",
+            offset: (x: "0.0", y: "0.15", z: "-0.01"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.2",
+            radius: "0.07"
+        ),
+        (
+            bone: "thigh_l",
+            offset: (x: "0.0", y: "0.15", z: "-0.01"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.2",
+            radius: "0.07"
+        ),
+        (
+            bone: "calf_l",
+            offset: (x: "0.0", y: "0.15", z: "-0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.2",
+            radius: "0.05"
+        ),
+        (
+            bone: "calf_r",
+            offset: (x: "0.0", y: "0.15", z: "-0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.2",
+            radius: "0.05"
+        ),
+        (
+            bone: "foot_r",
+            offset: (x: "0.0", y: "0.1", z: "0.01"),
+            rotation: FGVec3(x: "-25.0", y: "0.0", z: "0.0"),
+            half_length: "0.1",
+            radius: "0.04"
+        ),
+        (
+            bone: "foot_l",
+            offset: (x: "0.0", y: "0.1", z: "0.01"),
+            rotation: FGVec3(x: "-25.0", y: "0.0", z: "0.0"),
+            half_length: "0.1",
+            radius: "0.04"
+        ),
+        (
+            bone: "upperarm_l",
+            offset: (x: "0.0", y: "0.09", z: "-0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.125",
+            radius: "0.05"
+        ),
+        (
+            bone: "lowerarm_l",
+            offset: (x: "0.0", y: "0.12", z: "-0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.115",
+            radius: "0.04"
+        ),
+        (
+            bone: "hand_l",
+            offset: (x: "0.0", y: "0.05", z: "-0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.01",
+            radius: "0.04"
+        ),
+        (
+            bone: "upperarm_r",
+            offset: (x: "0.0", y: "0.09", z: "-0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.125",
+            radius: "0.05"
+        ),
+        (
+            bone: "lowerarm_r",
+            offset: (x: "0.0", y: "0.12", z: "-0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.115",
+            radius: "0.04"
+        ),
+        (
+            bone: "hand_r",
+            offset: (x: "0.0", y: "0.05", z: "-0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "0.0"),
+            half_length: "0.01",
+            radius: "0.04"
+        ),
+        /*(
+            bone: "RFootJA",
+            offset: (x: "0.0", y: "0.5", z: "0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "90.0"),
+            half_length: "0.5",
+            radius: "1.0"
+        ),
+        (
+            bone: "JOBJ_47",
+            offset: (x: "0.0", y: "0.0", z: "0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "90.0"),
+            half_length: "0.5",
+            radius: "1.0"
+        ),
+        (
+            bone: "LFootJA",
+            offset: (x: "0.0", y: "0.5", z: "0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "90.0"),
+            half_length: "0.5",
+            radius: "1.0"
+        ),
+        (
+            bone: "JOBJ_41",
+            offset: (x: "0.0", y: "0.0", z: "0.0"),
+            rotation: FGVec3(x: "0.0", y: "0.0", z: "90.0"),
+            half_length: "0.5",
+            radius: "1.0"
+        ),*/
+    ]
+)

assets/fighters/test/test.fighterbake

@@ -0,0 +1,3 @@
+(
+    manifest_path: "fighters/test/test.fighter.ron",
+)

assets/game.stylesheet.ron

@@ -0,0 +1,128 @@
+(
+    cursor: (
+        path: "ui/textures/cursor.png",
+        sampling: Nearest
+    ),
+    css_token: (
+        path: "ui/textures/fighter_select_token.png",
+        sampling: Linear
+    ),
+    player_colors: [
+        Srgba((red: 0.780, green: 0.420, blue: 0.933, alpha: 1.000)),
+        Srgba((red: 0.843, green: 0.227, blue: 0.204, alpha: 1.000)),
+        Srgba((red: 0.333, green: 0.804, blue: 0.078, alpha: 1.000)),
+        Srgba((red: 0.075, green: 0.376, blue: 0.416, alpha: 1.000)),
+        Srgba((red: 0.682, green: 0.878, blue: 0.914, alpha: 1.000))
+    ],
+    button_styles: {
+        MainMenu: (
+            focus_outline_width_px: 4,
+            focus_outline_offset_px: 2,
+            focus_outline_color: Srgba((red: 1.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+            normal: (
+                background_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                border_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+            ),
+            press: (
+                background_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                border_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+            ),
+            hover: (
+                background_color: Srgba((red: 0.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+                border_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+            )
+        ),
+        CharacterSelectCharacter: (
+            focus_outline_width_px: 10,
+            focus_outline_offset_px: 5,
+            focus_outline_color: Srgba((red: 1.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+            normal: (
+                background_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+                border_size: 10,
+            ),
+            press: (
+                background_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+            ),
+            hover: (
+                background_color: Srgba((red: 0.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+            )
+        ),
+        CharacterSelectStartBanner: (
+            focus_outline_width_px: 10,
+            focus_outline_offset_px: 5,
+            focus_outline_color: Srgba((red: 1.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+            normal: (
+                background_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+            ),
+            press: (
+                background_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+            ),
+            hover: (
+                background_color: Srgba((red: 0.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (),
+            )
+        ),
+        StageSelectIcon: (
+            focus_outline_width_px: 4,
+            focus_outline_offset_px: 2,
+            focus_outline_color: Srgba((red: 1.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+            normal: (
+                border_color: Srgba((red: 1.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+                background_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 0.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                border_size: 10,
+                border_radius: 40.0,
+                box_shadow: (
+                    spread_radius: 5.0,
+                    blur_radius: 5.0,
+                    offset_px_y: 10,
+                    offset_px_x: 10,
+                    color: Srgba((red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0))
+                ),
+            ),
+            press: (
+                background_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                border_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                border_radius: 40.0,
+                border_size: 10,
+                box_shadow: (
+                    spread_radius: 5.0,
+                    offset_px_y: 10,
+                    offset_px_x: 10,
+                    color: Srgba((red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0))
+                ),
+            ),
+            hover: (
+                background_color: Srgba((red: 0.0, green: 1.0, blue: 0.0, alpha: 1.0)),
+                border_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                border_radius: 40.0,
+                border_size: 10,
+                text_color: Srgba((red: 1.0, green: 0.0, blue: 0.0, alpha: 1.0)),
+                box_shadow: (
+                    spread_radius: 5.0,
+                    offset_px_y: 10,
+                    offset_px_x: 10,
+                    color: Srgba((red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0))
+                ),
+            )
+        ),
+    }
+)

assets/game_settings.ron

@@ -0,0 +1,28 @@
+(   
+    input_common: (
+        stick_deadzone: "0.275",
+        trigger_deadzone: "0.3",
+        smash_input_reset_axis_threshold: "0.25",
+        smash_input_axis_threshold: "0.8",
+        run_stick_threshold: "0.625",
+        smash_input_frame_threshold: 3,
+        input_buffer_size: 3,
+        turn_into_dashback_window: 2,
+    ),
+    fighter_common: (
+        walk_speed_ease: "0.5",
+        ground_max_horizontal_velocity: "3.0",
+        ground_friction_over_walk_speed_multiplier: "2.0",
+        knockback_stacking_window: 2,
+        knockback_decay_per_frame: "0.051",
+        knockback_launch_velocity_multiplier: "0.03",
+        hitstun_frames_per_unit_knockback: "0.4",
+
+    ),
+    stage_manifest_paths: [
+        "stages/battlefield/test.stage.ron"
+    ],
+    fighter_manifest_paths: [
+        "fighters/test/test.fighter.ron"
+    ]
+)

assets/stages/battlefield/test.stage.ron

@@ -0,0 +1,139 @@
+(
+    id: TestStage,
+    model_path: "stages/battlefield/battlefield.glb#Scene0",
+    icon: (
+        path: "stages/battlefield/icon.png"
+    ),
+
+    // Battlefield
+    /*camera: (
+        left: -200.0,
+        right: 200.0,
+        bottom: -59.0,
+        top: 170.0,
+        origin: (0.0, 44.0),
+        vertical_fov_degrees: 30.0,
+        min_depth: 83.0,
+        max_depth: 1000.0,
+        subject_scale: 1.5,
+        fighter_forward_extent_scale: 1.5,
+        tracking_smoothness: 1.8,
+        vertical_pan_degrees: -10.0,
+        horizontal_pan_degrees_per_unit: 0.1,
+        vertical_pan_degrees_per_unit: 0.1,
+        max_horizontal_pan_degrees: 17.5,
+        max_upward_pan_degrees: 5.0,
+        max_downward_pan_degrees: 7.0,
+    ),*/
+    // Yoshi's story
+
+    /*camera: (
+        left: -180.0,
+        right: 179.0,
+        bottom: -71.0,
+        top: 169.0,
+        origin: (0.0, 44.0),
+        vertical_fov_degrees: 20.0,
+        min_depth: 100.0,
+        max_depth: 1000.0,
+        subject_scale: 1.0,
+        fighter_forward_extent_scale: 1.0,
+        tracking_smoothness: 1.0,
+        vertical_pan_degrees: -10.0,
+        horizontal_pan_degrees_per_unit: 0.05,
+        vertical_pan_degrees_per_unit: 0.15,
+        max_horizontal_pan_degrees: 17.5,
+        max_upward_pan_degrees: 5.0,
+        max_downward_pan_degrees: 7.0,
+    ),*/
+
+    camera: (
+        left: -180.0,
+        right: 179.0,
+        bottom: -71.0,
+        top: 169.0,
+        origin: (0.0, 44.0),
+        vertical_fov_degrees: 20.0,
+        min_depth: 100.0,
+        max_depth: 1000.0,
+        subject_scale: 1.5,
+        fighter_forward_extent_scale: 1.0,
+        tracking_smoothness: 1.0,
+        vertical_pan_degrees: -10.0,
+        horizontal_pan_degrees_per_unit: 0.05,
+        vertical_pan_degrees_per_unit: 0.15,
+        max_horizontal_pan_degrees: 17.5,
+        max_upward_pan_degrees: 5.0,
+        max_downward_pan_degrees: 7.0,
+    ),
+    polygons: [
+        (
+            poly_type: Platform,
+            lines: [
+                (
+                    (x: "-20.0", y: "47.0"),
+                    Floor
+                ),
+                (
+                    (x: "20.0", y: "47.0"),
+                    Floor
+                )
+            ]
+        ),
+        (
+            poly_type: Platform,
+            lines: [
+                (
+                    (x: "-65.0", y: "24.0"),
+                    Floor
+                ),
+                (
+                    (x: "-25.0", y: "24.0"),
+                    Floor
+                )
+            ]
+        ),
+        (
+            poly_type: Platform,
+            lines: [
+                (
+                    (x: "25.0", y: "24.0"),
+                    Floor
+                ),
+                (
+                    (x: "65.0", y: "24.0"),
+                    Floor
+                )
+            ]
+        ),
+        (
+            poly_type: Closed,
+            lines: [
+                (
+                    (x: "-68.0", y: "-3.0"),
+                    Wall
+                ),
+                (
+                    (x: "-68.0", y: "0.0"),
+                    Floor,
+                ),
+                (
+                    (x: "0.0", y: "0.0"),
+                    Floor
+                ),
+                (
+                    (x: "68", y: "0.0"),
+                    Wall
+                ),
+                (
+                    (x: "68.0", y: "-3.0"),
+                    Ceiling
+                ),
+                (
+                    (x: "0.0", y: "-15.0"),
+                    Ceiling
+                ),
+            ]
+        )
+    ]
+)

assets/ui/textures/fighter_select_token.svg

@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="128"
+   height="128"
+   viewBox="0 0 33.866666 33.866666"
+   version="1.1"
+   id="svg1"
+   inkscape:version="1.4.4 (dcaf3e7d9e, 2026-05-05)"
+   sodipodi:docname="cursor.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview1"
+     pagecolor="#000000"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="mm"
+     inkscape:zoom="5.6568542"
+     inkscape:cx="8.6620581"
+     inkscape:cy="67.086756"
+     inkscape:window-width="2560"
+     inkscape:window-height="1006"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1" />
+  <defs
+     id="defs1">
+    <linearGradient
+       id="linearGradient1"
+       inkscape:collect="always">
+      <stop
+         style="stop-color:#949494;stop-opacity:1;"
+         offset="0"
+         id="stop1" />
+      <stop
+         style="stop-color:#6c6c6c;stop-opacity:1;"
+         offset="0.77473962"
+         id="stop3" />
+      <stop
+         style="stop-color:#9f9f9f;stop-opacity:1;"
+         offset="1"
+         id="stop2" />
+    </linearGradient>
+    <radialGradient
+       inkscape:collect="always"
+       xlink:href="#linearGradient1"
+       id="radialGradient2"
+       cx="16.933332"
+       cy="16.933332"
+       fx="16.933332"
+       fy="16.933332"
+       r="12.733072"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(1.2093771,0,0,1.2093771,-3.5454518,-3.5454518)" />
+  </defs>
+  <g
+     inkscape:label="Capa 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <circle
+       style="fill:url(#radialGradient2);stroke-width:0.319981"
+       id="path1"
+       cx="16.933332"
+       cy="16.933332"
+       r="15.399086" />
+  </g>
+</svg>

launch_localtest.sh

@@ -1,8 +0,0 @@
-#!/bin/bash
-
-FIRST="cargo run -- --debug-match --players 2 --local-port 7000 \
-  --net-player 0=local --net-player 1=127.0.0.1:7001"
-SECOND="cargo run -- --debug-match --players 2 --local-port 7001 \
---net-player 0=127.0.0.1:7000 --net-player 1=local"
-
-(trap 'kill 0' SIGINT; $FIRST & $SECOND)

scripts/install-blender.sh

@@ -1,30 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-version="5.2.2"
-sha256="84098912789dc450e95697c4184fb8a90acbe5111c2ba4aede3fecb57806a168"
-install_dir="${1:-${BLENDER_INSTALL_DIR:-${HOME}/.local/blender-${version}}}"
-
-if [[ "$(uname -s)" != Linux || "$(uname -m)" != x86_64 ]]; then
-    echo "error: this installer currently supports Linux x86_64 only" >&2
-    exit 1
-fi
-
-if [[ -x "$install_dir/blender" ]]; then
-    "$install_dir/blender" --version | head -n 1
-    exit 0
-fi
-
-mkdir -p "$(dirname "$install_dir")"
-tmp_dir="$(mktemp -d)"
-trap 'rm -rf "$tmp_dir"' EXIT
-
-archive="blender-${version}-linux-x64.tar.xz"
-url="https://download.blender.org/release/Blender5.2/${archive}"
-
-curl --fail --location --silent --show-error --output "$tmp_dir/$archive" "$url"
-printf '%s  %s\n' "$sha256" "$tmp_dir/$archive" | sha256sum --check --status
-tar --extract --xz --file "$tmp_dir/$archive" --directory "$tmp_dir"
-mv "$tmp_dir/blender-${version}-linux-x64" "$install_dir"
-
-"$install_dir/blender" --version | head -n 1

scripts/install-lore.sh

@@ -1,31 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-version="v0.10.0"
-sha256="0d1633b71e44081c6a3ca57ad5be3df7a9563698827638838939c3c832e87351"
-install_dir="${1:-${LORE_INSTALL_DIR:-${HOME}/.local/bin}}"
-
-if [[ "$(uname -s)" != Linux || "$(uname -m)" != x86_64 ]]; then
-    echo "error: this installer currently supports Linux x86_64 only" >&2
-    exit 1
-fi
-
-mkdir -p "$install_dir"
-tmp_dir="$(mktemp -d)"
-trap 'rm -rf "$tmp_dir"' EXIT
-
-archive="lore-${version}-x86_64-unknown-linux-gnu.tar.gz"
-url="https://github.com/EpicGames/lore/releases/download/${version}/${archive}"
-
-curl --fail --location --silent --show-error --output "$tmp_dir/$archive" "$url"
-printf '%s  %s\n' "$sha256" "$tmp_dir/$archive" | sha256sum --check --status
-tar --extract --gzip --file "$tmp_dir/$archive" --directory "$tmp_dir"
-
-binary="$(find "$tmp_dir" -type f -name lore -print -quit)"
-if [[ -z "$binary" ]]; then
-    echo "error: Lore archive did not contain a lore binary" >&2
-    exit 1
-fi
-
-install -m 0755 "$binary" "$install_dir/lore"
-"$install_dir/lore" --version

scripts/update-assets.sh

@@ -1,111 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-readonly lore_url="${LORE_REPOSITORY_URL:-lore://lore.eirexe.moe/shinespark}"
-readonly default_branch="${LORE_DEFAULT_BRANCH:-main}"
-readonly assets_dir="${LORE_ASSETS_DIR:-assets}"
-branch="${1:-${LORE_BRANCH:-$default_branch}}"
-
-case "$branch" in
-    ""|*[!A-Za-z0-9._/-]*)
-        echo "error: invalid Lore branch name: $branch" >&2
-        exit 2
-        ;;
-esac
-
-if [[ -n "${LORE_IDENTITY_TOKEN:-}" ]]; then
-    lore_args=(--identity-token "$LORE_IDENTITY_TOKEN")
-elif [[ -n "${LORE_CI_USERNAME:-}" || -n "${LORE_CI_PASSWORD:-}" ]]; then
-    if [[ -z "${LORE_CI_USERNAME:-}" || -z "${LORE_CI_PASSWORD:-}" ]]; then
-        echo "error: LORE_CI_USERNAME and LORE_CI_PASSWORD must be provided together" >&2
-        exit 2
-    fi
-    : "${LORE_AUTH_URL:=https://auth.eirexe.moe}"
-    export LORE_AUTH_URL
-    token="$(python3 - <<'PY'
-import json
-import os
-import sys
-import urllib.error
-import urllib.request
-
-request = urllib.request.Request(
-    os.environ["LORE_AUTH_URL"].rstrip("/") + "/auth/login",
-    data=json.dumps({
-        "username": os.environ["LORE_CI_USERNAME"],
-        "password": os.environ["LORE_CI_PASSWORD"],
-    }).encode(),
-    headers={"Content-Type": "application/json"},
-    method="POST",
-)
-try:
-    with urllib.request.urlopen(request) as response:
-        payload = json.load(response)
-except urllib.error.HTTPError as error:
-    print(f"Lore authentication failed with HTTP {error.code}", file=sys.stderr)
-    sys.exit(1)
-
-token = payload.get("token")
-if not isinstance(token, str) or not token:
-    print("Lore authentication response did not contain a token", file=sys.stderr)
-    sys.exit(1)
-print(token)
-PY
-    )"
-    if [[ -n "${GITHUB_ENV:-}" ]]; then
-        echo "::add-mask::$token"
-    fi
-    lore_args=(--identity-token "$token")
-else
-    lore_args=()
-fi
-
-if [[ -e "$assets_dir" && ! -d "$assets_dir" ]]; then
-    echo "error: $assets_dir exists but is not a directory" >&2
-    exit 1
-fi
-
-if [[ -d "$assets_dir/.lore" ]]; then
-    if ! lore "${lore_args[@]}" --repository "$assets_dir" repository info >/dev/null; then
-        echo "error: $assets_dir is not a usable Lore checkout" >&2
-        exit 1
-    fi
-    if ! lore "${lore_args[@]}" --repository "$assets_dir" branch list --no-pager \
-        | grep -Fqx "  $branch"; then
-        if [[ "$branch" != "$default_branch" ]]; then
-            echo "warning: Lore branch does not exist: $branch; using $default_branch" >&2
-            branch="$default_branch"
-        else
-            echo "error: Lore branch does not exist: $branch" >&2
-            exit 1
-        fi
-    fi
-    lore "${lore_args[@]}" --repository "$assets_dir" sync "$branch@LATEST"
-    exit 0
-fi
-
-if [[ -d "$assets_dir" && -n "$(find "$assets_dir" -mindepth 1 -maxdepth 1 -print -quit)" ]]; then
-    echo "error: refusing to overwrite non-Lore directory: $assets_dir" >&2
-    exit 1
-fi
-
-metadata_dir="$(mktemp -d)"
-trap 'rm -rf "$metadata_dir"' EXIT
-lore "${lore_args[@]}" --non-interactive clone --bare "$lore_url" "$metadata_dir"
-
-if ! lore "${lore_args[@]}" --repository "$metadata_dir" branch list --no-pager \
-    | grep -Fqx "  $branch"; then
-    if [[ "$branch" != "$default_branch" ]]; then
-        echo "warning: Lore branch does not exist: $branch; using $default_branch" >&2
-        branch="$default_branch"
-    else
-        echo "error: Lore branch does not exist: $branch" >&2
-        echo "available branches:" >&2
-        lore "${lore_args[@]}" --repository "$metadata_dir" branch list --no-pager >&2
-        exit 1
-    fi
-fi
-
-rm -rf "$assets_dir"
-lore "${lore_args[@]}" --non-interactive clone --branch "$branch" "$lore_url" "$assets_dir"
-lore "${lore_args[@]}" --repository "$assets_dir" status --revision-only --no-pager

src/args.rs

@@ -1,6 +1,5 @@
 use bevy::prelude::*;
 use clap::Parser;
-use std::net::SocketAddr;
 use std::path::PathBuf;
 
 #[derive(Parser, Debug, Clone, Resource)]
@@ -16,12 +15,6 @@ pub struct Args {
     pub check_distance: usize,
     #[clap(long, default_value_t = 1)]
     pub players: usize,
-    /// UDP port to bind for a direct peer-to-peer session.
-    #[clap(long, default_value_t = 6969)]
-    pub local_port: u16,
-    /// Player ownership declarations in the form HANDLE=local or HANDLE=ADDRESS.
-    #[clap(long = "net-player", value_name = "HANDLE=local|ADDRESS")]
-    pub net_players: Vec<String>,
     /// Record a replay to this path.
     #[clap(long, conflicts_with = "play_replay")]
     pub record_replay: Option<PathBuf>,
@@ -32,41 +25,3 @@ pub struct Args {
     #[clap(long, value_enum, default_value_t = crate::replay::ReplayFormat::Binary)]
     pub replay_format: crate::replay::ReplayFormat,
 }
-
-pub fn parse_socket_addr(value: &str) -> Result<SocketAddr, String> {
-    let address = value
-        .parse::<SocketAddr>()
-        .map_err(|_| format!("invalid socket address: {value}"))?;
-    if address.port() == 0 {
-        return Err(format!("socket address must use a nonzero port: {value}"));
-    }
-    Ok(address)
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn parses_network_options() {
-        let args = Args::try_parse_from([
-            "game",
-            "--local-port",
-            "7000",
-            "--net-player",
-            "0=local",
-            "--net-player",
-            "1=127.0.0.1:7001",
-        ])
-        .unwrap();
-
-        assert_eq!(args.local_port, 7000);
-        assert_eq!(args.net_players, ["0=local", "1=127.0.0.1:7001"]);
-    }
-
-    #[test]
-    fn rejects_invalid_socket_addresses() {
-        assert!(parse_socket_addr("127.0.0.1:0").is_err());
-        assert!(parse_socket_addr("not-an-address").is_err());
-    }
-}

src/bin/hitbox-editor.rs

@@ -1,37 +0,0 @@
-use bevy::{
-    asset::{AssetMode, AssetPlugin},
-    gltf::GltfPlugin,
-    image::{ImageAddressMode, ImagePlugin, ImageSamplerDescriptor},
-    prelude::*,
-};
-use bevy_egui::EguiPlugin;
-use clap::Parser;
-use shinespark::hitbox_viewer::{HitboxViewerArgs, HitboxViewerPlugin};
-
-fn main() -> AppExit {
-    let args = HitboxViewerArgs::parse();
-    let default_sampler = ImageSamplerDescriptor::linear()
-        .set_address_mode(ImageAddressMode::Repeat)
-        .set_anisotropic_filter(16)
-        .clone();
-    let default_plugins = DefaultPlugins
-        .set(ImagePlugin {
-            default_sampler: default_sampler.clone(),
-        })
-        .set(GltfPlugin {
-            default_sampler,
-            ..default()
-        })
-        .set(AssetPlugin {
-            mode: AssetMode::Processed,
-            use_asset_processor_override: Some(cfg!(feature = "development")),
-            ..default()
-        });
-
-    App::new()
-        .add_plugins(default_plugins)
-        .add_plugins(EguiPlugin::default())
-        .insert_resource(args)
-        .add_plugins(HitboxViewerPlugin)
-        .run()
-}

src/bin/process-assets.rs

@@ -1,36 +0,0 @@
-use bevy::{
-    app::ScheduleRunnerPlugin,
-    asset::{AssetMode, AssetPlugin, processor::AssetProcessor, processor::ProcessorState},
-    gltf::GltfPlugin,
-    image::{CompressedImageFormats, ImageLoader, ImagePlugin},
-    prelude::*,
-    tasks::block_on,
-    text::TextPlugin,
-};
-use shinespark::AssetProcessingPlugin;
-use std::{process::ExitCode, time::Duration};
-
-fn main() -> ExitCode {
-    let mut app = App::new();
-    app.add_plugins(MinimalPlugins.set(ScheduleRunnerPlugin::run_loop(Duration::from_millis(50))))
-        .add_plugins(AssetPlugin {
-            mode: AssetMode::Processed,
-            use_asset_processor_override: Some(true),
-            ..default()
-        })
-        .add_plugins((ImagePlugin::default(), TextPlugin, GltfPlugin::default()))
-        .register_asset_loader(ImageLoader::new(CompressedImageFormats::NONE))
-        .add_plugins(AssetProcessingPlugin)
-        .add_systems(Update, finish_when_processed);
-
-    app.run();
-    ExitCode::SUCCESS
-}
-
-fn finish_when_processed(processor: Option<Res<AssetProcessor>>, mut exit: MessageWriter<AppExit>) {
-    if processor
-        .is_some_and(|processor| block_on(processor.get_state()) == ProcessorState::Finished)
-    {
-        exit.write(AppExit::Success);
-    }
-}

src/blend_asset.rs

@@ -1,394 +0,0 @@
-//! Blender `.blend` source processing.
-//!
-//! Blender is used as an offline importer. The processed result is a normal
-//! GLB, so the runtime continues to use Bevy's built-in glTF loader.
-
-use bevy::{
-    asset::{
-        AssetLoader, AssetPath, AsyncWriteExt, LoadContext,
-        io::{Reader, Writer},
-        processor::LoadTransformAndSave,
-        saver::{AssetSaver, SavedAsset},
-        transformer::{AssetTransformer, TransformedAsset},
-    },
-    gltf::GltfLoader,
-    prelude::*,
-    reflect::TypePath,
-};
-use serde::Deserialize;
-use std::{
-    collections::HashMap,
-    fs, io,
-    path::{Path, PathBuf},
-    process::Command,
-    time::{SystemTime, UNIX_EPOCH},
-};
-
-use crate::fighter::animation::AnimKind;
-
-const EXPORT_SCRIPT: &str = include_str!("blend_asset/export.py");
-
-#[derive(Asset, TypePath)]
-struct BlendSource {
-    glb: Vec<u8>,
-}
-
-#[derive(Default, TypePath)]
-struct BlendSourceLoader;
-
-#[derive(Debug, Deserialize)]
-struct ExportManifest {
-    dependencies: Vec<String>,
-}
-
-#[derive(Debug, Deserialize)]
-struct AnimationManifest {
-    animations: HashMap<AnimKind, String>,
-}
-
-impl AssetLoader for BlendSourceLoader {
-    type Asset = BlendSource;
-    type Settings = ();
-    type Error = io::Error;
-
-    async fn load(
-        &self,
-        reader: &mut dyn Reader,
-        _: &Self::Settings,
-        load_context: &mut LoadContext<'_>,
-    ) -> Result<Self::Asset, Self::Error> {
-        let mut source_bytes = Vec::new();
-        reader.read_to_end(&mut source_bytes).await?;
-
-        let temp = TempDir::new()?;
-        let source_path = locate_source(load_context.path().path());
-        let blend_path = if let Some(path) = source_path.as_deref() {
-            path.to_path_buf()
-        } else {
-            let path = temp.path().join("source.blend");
-            fs::write(&path, source_bytes)?;
-            path
-        };
-        let output = temp.path().join("export.gltf");
-        let script = temp.path().join("export.py");
-        let actions = referenced_actions(load_context, &asset_root()).await?;
-        let actions_path = temp.path().join("actions.json");
-        fs::write(
-            &actions_path,
-            serde_json::to_vec(&actions).map_err(io::Error::other)?,
-        )?;
-        fs::write(&script, EXPORT_SCRIPT)?;
-
-        let result = Command::new(std::env::var_os("BLENDER").unwrap_or_else(|| "blender".into()))
-            .arg("--background")
-            .arg(&blend_path)
-            .arg("--python")
-            .arg(&script)
-            .arg("--")
-            .arg(&output)
-            .arg(&actions_path)
-            .arg(&blend_path)
-            .output()
-            .map_err(|error| io::Error::other(format!("failed to start Blender: {error}")))?;
-        if !result.status.success() {
-            return Err(io::Error::other(format!(
-                "Blender export failed with {}:\n{}\n{}",
-                result.status,
-                String::from_utf8_lossy(&result.stdout),
-                String::from_utf8_lossy(&result.stderr)
-            )));
-        }
-
-        let manifest: ExportManifest =
-            serde_json::from_slice(&fs::read(temp.path().join("export-manifest.json"))?)
-                .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-
-        let asset_root = asset_root();
-        let mut dependencies = manifest.dependencies;
-        let document: serde_json::Value = serde_json::from_slice(&fs::read(&output)?)
-            .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-        validate_export(&document, &output)?;
-        if let Some(images) = document.get("images").and_then(serde_json::Value::as_array) {
-            for image in images {
-                if let Some(uri) = image.get("uri").and_then(serde_json::Value::as_str) {
-                    let path = temp.path().join(uri);
-                    dependencies.push(path.to_string_lossy().into_owned());
-                }
-            }
-        }
-
-        let mut seen = std::collections::HashSet::new();
-        for dependency in dependencies {
-            let physical = PathBuf::from(&dependency);
-            let Some(asset_path) = physical_to_asset_path(&physical, &asset_root) else {
-                continue;
-            };
-            if seen.insert(asset_path.clone()) {
-                // This read is intentionally discarded: it registers the file and
-                // its processed hash as a processor dependency.
-                load_context
-                    .read_asset_bytes(asset_path)
-                    .await
-                    .map_err(|error| {
-                        io::Error::other(format!("failed to read blend dependency: {error}"))
-                    })?;
-            }
-        }
-
-        let glb = make_glb(&output, &temp, load_context.path().path(), &asset_root)?;
-        Ok(BlendSource { glb })
-    }
-
-    fn extensions(&self) -> &[&str] {
-        &["blend"]
-    }
-}
-
-fn validate_export(document: &serde_json::Value, output: &Path) -> io::Result<()> {
-    for key in ["scenes", "nodes", "meshes"] {
-        let count = document
-            .get(key)
-            .and_then(serde_json::Value::as_array)
-            .map_or(0, Vec::len);
-        if count == 0 {
-            return Err(io::Error::new(
-                io::ErrorKind::InvalidData,
-                format!("Blender export {} contains no {key}", output.display()),
-            ));
-        }
-    }
-    Ok(())
-}
-
-async fn referenced_actions(
-    load_context: &mut LoadContext<'_>,
-    root: &Path,
-) -> io::Result<Vec<String>> {
-    let model_path = load_context.path().path();
-    let Some(stem) = model_path.file_stem().and_then(|stem| stem.to_str()) else {
-        return Ok(Vec::new());
-    };
-    let manifest_path = model_path
-        .parent()
-        .unwrap_or_else(|| Path::new(""))
-        .join(format!("{stem}.fighter.ron"));
-    if !root.join(&manifest_path).is_file() {
-        return Ok(Vec::new());
-    }
-    let bytes = load_context
-        .read_asset_bytes(manifest_path)
-        .await
-        .map_err(|error| io::Error::other(error.to_string()))?;
-    let manifest: AnimationManifest = ron::de::from_bytes(&bytes)
-        .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-    Ok(manifest.animations.into_values().collect())
-}
-
-#[derive(Asset, TypePath)]
-struct ProcessedBlend {
-    bytes: Vec<u8>,
-}
-
-#[derive(Default, TypePath)]
-struct BlendTransformer;
-
-impl AssetTransformer for BlendTransformer {
-    type AssetInput = BlendSource;
-    type AssetOutput = ProcessedBlend;
-    type Settings = ();
-    type Error = io::Error;
-
-    async fn transform<'a>(
-        &'a self,
-        source: TransformedAsset<Self::AssetInput>,
-        _: &'a Self::Settings,
-    ) -> Result<TransformedAsset<Self::AssetOutput>, Self::Error> {
-        let bytes = source.glb.clone();
-        Ok(source.replace_asset(ProcessedBlend { bytes }))
-    }
-}
-
-#[derive(Default, TypePath)]
-struct BlendSaver;
-
-impl AssetSaver for BlendSaver {
-    type Asset = ProcessedBlend;
-    type Settings = ();
-    type OutputLoader = GltfLoader;
-    type Error = io::Error;
-
-    async fn save(
-        &self,
-        writer: &mut Writer,
-        asset: SavedAsset<'_, '_, Self::Asset>,
-        _: &Self::Settings,
-        _: AssetPath<'_>,
-    ) -> Result<<Self::OutputLoader as AssetLoader>::Settings, Self::Error> {
-        writer.write_all(&asset.bytes).await?;
-        Ok(default())
-    }
-}
-
-type BlendProcessor = LoadTransformAndSave<BlendSourceLoader, BlendTransformer, BlendSaver>;
-
-pub struct BlendAssetProcessingPlugin;
-
-impl Plugin for BlendAssetProcessingPlugin {
-    fn build(&self, app: &mut App) {
-        app.init_asset::<BlendSource>()
-            .init_asset::<ProcessedBlend>()
-            .register_asset_loader(BlendSourceLoader)
-            .register_asset_processor(BlendProcessor::new(BlendTransformer, BlendSaver))
-            .set_default_asset_processor::<BlendProcessor>("blend");
-    }
-}
-
-struct TempDir(PathBuf);
-
-impl TempDir {
-    fn new() -> io::Result<Self> {
-        let stamp = SystemTime::now()
-            .duration_since(UNIX_EPOCH)
-            .unwrap_or_default()
-            .as_nanos();
-        let path =
-            std::env::temp_dir().join(format!("shinespark-blend-{}-{stamp}", std::process::id()));
-        fs::create_dir_all(&path)?;
-        Ok(Self(path))
-    }
-    fn path(&self) -> &Path {
-        &self.0
-    }
-}
-
-impl Drop for TempDir {
-    fn drop(&mut self) {
-        let _ = fs::remove_dir_all(&self.0);
-    }
-}
-
-fn asset_root() -> PathBuf {
-    std::env::var_os("BEVY_ASSET_ROOT")
-        .map(PathBuf::from)
-        .unwrap_or_else(|| std::env::current_dir().unwrap_or_default().join("assets"))
-}
-
-fn locate_source(path: &Path) -> Option<PathBuf> {
-    let root = asset_root();
-    [root.join(path), PathBuf::from(path)]
-        .into_iter()
-        .find(|candidate| candidate.is_file())
-}
-
-fn physical_to_asset_path(path: &Path, root: &Path) -> Option<String> {
-    let canonical = fs::canonicalize(path).ok()?;
-    let root = fs::canonicalize(root).ok()?;
-    let relative = canonical.strip_prefix(root).ok()?;
-    Some(relative.to_string_lossy().replace('\\', "/"))
-}
-
-fn make_glb(
-    gltf_path: &Path,
-    temp: &TempDir,
-    model_asset_path: &Path,
-    asset_root: &Path,
-) -> io::Result<Vec<u8>> {
-    let mut json: serde_json::Value = serde_json::from_slice(&fs::read(gltf_path)?)
-        .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-    let bin_name = json["buffers"][0]["uri"].as_str().ok_or_else(|| {
-        io::Error::new(io::ErrorKind::InvalidData, "glTF has no binary buffer URI")
-    })?;
-    let mut bin = fs::read(temp.path().join(bin_name))?;
-    let model_parent = model_asset_path.parent().unwrap_or_else(|| Path::new(""));
-    let image_count = json["images"].as_array().map_or(0, Vec::len);
-    if image_count > 0 && !json["bufferViews"].is_array() {
-        return Err(io::Error::new(
-            io::ErrorKind::InvalidData,
-            "glTF bufferViews are not an array",
-        ));
-    }
-    for index in 0..image_count {
-        let uri = json["images"][index]
-            .get("uri")
-            .and_then(serde_json::Value::as_str)
-            .map(str::to_owned);
-        let Some(uri) = uri else { continue };
-        if uri.starts_with("data:") {
-            continue;
-        }
-        let uri_path = temp.path().join(uri);
-        if let Some(asset_path) = physical_to_asset_path(&uri_path, asset_root) {
-            json["images"][index]["uri"] =
-                serde_json::Value::String(relative_uri(model_parent, Path::new(&asset_path)));
-        } else {
-            let bytes = fs::read(&uri_path)?;
-            while bin.len() % 4 != 0 {
-                bin.push(0);
-            }
-            let offset = bin.len();
-            bin.extend_from_slice(&bytes);
-            let mime = mime_type(&uri_path);
-            let view = json["bufferViews"].as_array().unwrap().len();
-            json["bufferViews"]
-                .as_array_mut()
-                .unwrap()
-                .push(serde_json::json!({
-                    "buffer": 0,
-                    "byteOffset": offset,
-                    "byteLength": bytes.len(),
-                }));
-            json["images"][index].as_object_mut().unwrap().remove("uri");
-            json["images"][index]["bufferView"] = serde_json::Value::from(view);
-            json["images"][index]["mimeType"] = serde_json::Value::String(mime.to_owned());
-        }
-    }
-    json["buffers"][0]["byteLength"] = serde_json::Value::from(bin.len());
-    json["buffers"][0].as_object_mut().unwrap().remove("uri");
-    let mut json_bytes = serde_json::to_vec(&json).map_err(io::Error::other)?;
-    while json_bytes.len() % 4 != 0 {
-        json_bytes.push(b' ');
-    }
-    while bin.len() % 4 != 0 {
-        bin.push(0);
-    }
-    let length = 12 + 8 + json_bytes.len() + 8 + bin.len();
-    let mut glb = Vec::with_capacity(length);
-    glb.extend_from_slice(b"glTF");
-    glb.extend_from_slice(&2u32.to_le_bytes());
-    glb.extend_from_slice(&(length as u32).to_le_bytes());
-    glb.extend_from_slice(&(json_bytes.len() as u32).to_le_bytes());
-    glb.extend_from_slice(b"JSON");
-    glb.extend_from_slice(&json_bytes);
-    glb.extend_from_slice(&(bin.len() as u32).to_le_bytes());
-    glb.extend_from_slice(b"BIN\0");
-    glb.extend_from_slice(&bin);
-    Ok(glb)
-}
-
-fn relative_uri(from: &Path, to: &Path) -> String {
-    let from: Vec<_> = from.components().collect();
-    let to: Vec<_> = to.components().collect();
-    let common = from.iter().zip(&to).take_while(|(a, b)| a == b).count();
-    let mut result = PathBuf::new();
-    for _ in common..from.len() {
-        result.push("..");
-    }
-    for component in &to[common..] {
-        result.push(component.as_os_str());
-    }
-    result.to_string_lossy().replace('\\', "/")
-}
-
-fn mime_type(path: &Path) -> &'static str {
-    match path
-        .extension()
-        .and_then(|e| e.to_str())
-        .unwrap_or_default()
-        .to_ascii_lowercase()
-        .as_str()
-    {
-        "jpg" | "jpeg" => "image/jpeg",
-        "webp" => "image/webp",
-        _ => "image/png",
-    }
-}

src/blend_asset/export.py

@@ -1,80 +0,0 @@
-import bpy
-import json
-import os
-import sys
-
-
-def main():
-    output = sys.argv[sys.argv.index("--") + 1]
-    actions_path = sys.argv[sys.argv.index("--") + 2]
-    source_path = sys.argv[sys.argv.index("--") + 3]
-    loaded_path = os.path.realpath(bpy.data.filepath)
-    expected_path = os.path.realpath(source_path)
-    if loaded_path != expected_path:
-        raise RuntimeError(
-            f"Blender loaded {loaded_path!r} instead of {expected_path!r}"
-        )
-    if not bpy.data.objects or not bpy.data.meshes:
-        raise RuntimeError("Blender loaded an empty scene")
-    with open(actions_path) as file:
-        actions_to_keep = set(json.load(file))
-
-    for obj in bpy.data.objects:
-        if not obj.animation_data:
-            continue
-        for track in list(obj.animation_data.nla_tracks):
-            if track.name.startswith("[Action Stash]"):
-                obj.animation_data.nla_tracks.remove(track)
-
-    nla_tracks = [
-        track
-        for obj in bpy.data.objects
-        if obj.animation_data
-        for track in obj.animation_data.nla_tracks
-    ]
-    use_nla_tracks = bool(nla_tracks)
-
-    # For blends without NLA tracks, use the actions referenced by the fighter
-    # manifest instead of sampling every source action.
-    if not use_nla_tracks and actions_to_keep:
-        from io_scene_gltf2 import GLTF2_filter_action
-
-        if not hasattr(bpy.types.Scene, "gltf_action_filter"):
-            bpy.types.Scene.gltf_action_filter = bpy.props.CollectionProperty(
-                type=GLTF2_filter_action
-            )
-        scene = bpy.context.scene
-        scene.gltf_action_filter.clear()
-        for action in bpy.data.actions:
-            item = scene.gltf_action_filter.add()
-            item.action = action
-            item.keep = action.name in actions_to_keep
-
-    bpy.ops.export_scene.gltf(
-        filepath=output,
-        export_format="GLTF_SEPARATE",
-        export_keep_originals=True,
-        export_extras=True,
-        export_animations=True,
-        export_skins=True,
-        export_morph=True,
-        export_yup=True,
-        export_def_bones=True,
-        export_action_filter=False,
-        export_animation_mode="NLA_TRACKS" if use_nla_tracks else "ACTIONS",
-    )
-
-    dependencies = []
-    for image in bpy.data.images:
-        if image.source not in {"FILE", "TILED"}:
-            continue
-        path = image.filepath_raw or image.filepath
-        if path and not image.packed_file:
-            dependencies.append(bpy.path.abspath(path))
-
-    with open(os.path.join(os.path.dirname(output), "export-manifest.json"), "w") as file:
-        json.dump({"dependencies": sorted(set(dependencies))}, file)
-
-
-if __name__ == "__main__":
-    main()

src/camera/mod.rs

@@ -5,7 +5,7 @@ use bevy_ggrs::GgrsFrameTiming;
 
 use crate::{
     debug_tools::DebugSettings,
-    fighter::{manifest::FighterManifest, motion::{sample_presentation_translation_with_snap, FighterPresentationSnap}},
+    fighter::{manifest::FighterManifest, motion::sample_presentation_translation},
     stage::manifest::StageCameraProfile,
 };
 
@@ -313,7 +313,6 @@ fn update_match_camera(
             &crate::fighter::motion::FighterPreviousTranslation,
             &crate::fighter::Fighter,
             &crate::fighter::FighterFacingDirection,
-            &FighterPresentationSnap,
             &mut FighterCameraExtents,
         ),
         With<crate::player::Player>,
@@ -330,17 +329,16 @@ fn update_match_camera(
     let subjects = fighters
         .iter_mut()
         .map(
-            |(translation, previous_translation, fighter, facing, presentation_snap, mut extents)| {
+            |(translation, previous_translation, fighter, facing, mut extents)| {
                 let manifest = manifests
                     .get(&fighter.manifest)
                     .expect("Fighter manifest should be valid");
                 fighter_subject_bounds(
-                    sample_presentation_translation_with_snap(
+                    sample_presentation_translation(
                         *previous_translation,
                         *translation,
                         timing.overstep_fraction(),
                         debug_settings.motion_sampling,
-                        *presentation_snap,
                     ),
                     manifest.camera,
                     *facing,
@@ -467,7 +465,6 @@ fn debug_draw_camera(
             &crate::fighter::motion::FighterPreviousTranslation,
             &crate::fighter::Fighter,
             &crate::fighter::FighterFacingDirection,
-            &FighterPresentationSnap,
             &FighterCameraExtents,
         ),
         With<crate::player::Player>,
@@ -489,16 +486,15 @@ fn debug_draw_camera(
             Color::srgb(1.0, 0.5, 0.0),
         );
         draw_rectangle(&mut gizmos, camera.frame, Color::srgb(1.0, 1.0, 0.0));
-        for (translation, previous_translation, fighter, _facing, presentation_snap, extents) in &fighters {
+        for (translation, previous_translation, fighter, _facing, extents) in &fighters {
             let manifest = manifests
                 .get(&fighter.manifest)
                 .expect("Fighter manifest should be valid");
-            let center = sample_presentation_translation_with_snap(
+            let center = sample_presentation_translation(
                 *previous_translation,
                 *translation,
                 timing.overstep_fraction(),
                 debug_settings.motion_sampling,
-                *presentation_snap,
             ) + Vec2::Y * manifest.camera.vertical_origin_offset.to_num::<f32>();
             draw_rectangle(
                 &mut gizmos,

src/debug_tools.rs

@@ -3,9 +3,11 @@
 use std::{collections::HashMap, time::Duration};
 
 use bevy::{
-    camera::{CameraOutputMode, visibility::RenderLayers}, input::InputSystems, prelude::*, render::render_resource::BlendState, settings::{ReflectSettingsGroup, SaveSettingsDeferred, SettingsGroup},
+    input::InputSystems,
+    prelude::*,
+    settings::{ReflectSettingsGroup, SaveSettingsDeferred, SettingsGroup},
 };
-use bevy_egui::{EguiContexts, EguiGlobalSettings, EguiPrimaryContextPass, PrimaryEguiContext, egui};
+use bevy_egui::{EguiContexts, EguiPrimaryContextPass, egui};
 use bevy_ggrs::{RollbackFrameRate, RunGgrsSystems};
 use enum_cycling::EnumCycle;
 use enum_cycling_derive::EnumCycle;
@@ -109,14 +111,11 @@ impl FighterDebugRowKind {
 enum DebugFlag {
     Network,
     Ecb,
-    BlastZones,
     StageCollision,
-    SpawnPositions,
     AnimationBones,
     AttackHitboxes,
     Hurtboxes,
     Camera,
-    LedgeGrab,
     DrawThroughGeometry,
     FrameStepping,
 }
@@ -165,10 +164,6 @@ const FIGHTER_MENU: &[DebugMenuEntry] = &[
         label: "Attack hitboxes",
         flag: DebugFlag::AttackHitboxes,
     },
-    DebugMenuEntry::Toggle {
-        label: "Ledge grab",
-        flag: DebugFlag::LedgeGrab,
-    },
     DebugMenuEntry::Toggle {
         label: "Hurtboxes",
         flag: DebugFlag::Hurtboxes,
@@ -180,14 +175,6 @@ const WORLD_MENU: &[DebugMenuEntry] = &[
         label: "Stage collision",
         flag: DebugFlag::StageCollision,
     },
-    DebugMenuEntry::Toggle {
-        label: "Blast zones",
-        flag: DebugFlag::BlastZones,
-    },
-    DebugMenuEntry::Toggle {
-        label: "Spawn points",
-        flag: DebugFlag::SpawnPositions,
-    },
     DebugMenuEntry::GameSpeed {
         label: "Game speed",
     },
@@ -258,14 +245,11 @@ pub struct DebugSettings {
     pub frame_stepping: bool,
     pub network: bool,
     pub ecb: bool,
-    pub blast_zones: bool,
     pub stage_collision: bool,
-    pub spawn_positions: bool,
     pub animation_bones: bool,
     pub attack_hitboxes: bool,
     pub hurtboxes: bool,
     pub camera: bool,
-    pub ledge_grab: bool,
     pub draw_through_geometry: bool,
     pub motion_sampling: PresentationMotionMode,
     pub game_speed: GameSpeedDebug,
@@ -282,14 +266,11 @@ impl Default for DebugSettings {
             frame_stepping: false,
             network: false,
             ecb: false,
-            blast_zones: false,
             stage_collision: false,
-            spawn_positions: false,
             animation_bones: false,
             attack_hitboxes: false,
             hurtboxes: false,
             camera: false,
-            ledge_grab: false,
             draw_through_geometry: false,
             motion_sampling: PresentationMotionMode::default(),
             game_speed: GameSpeedDebug::Full,
@@ -349,15 +330,12 @@ impl DebugSettings {
         match flag {
             DebugFlag::Network => self.network,
             DebugFlag::Ecb => self.ecb,
-            DebugFlag::BlastZones => self.blast_zones,
-            DebugFlag::SpawnPositions => self.spawn_positions,
             DebugFlag::StageCollision => self.stage_collision,
             DebugFlag::AnimationBones => self.animation_bones,
             DebugFlag::AttackHitboxes => self.attack_hitboxes,
             DebugFlag::Hurtboxes => self.hurtboxes,
             DebugFlag::DrawThroughGeometry => self.draw_through_geometry,
             DebugFlag::Camera => self.camera,
-            DebugFlag::LedgeGrab => self.ledge_grab,
             DebugFlag::FrameStepping => self.frame_stepping,
         }
     }
@@ -366,9 +344,7 @@ impl DebugSettings {
         match flag {
             DebugFlag::Network => self.network = !self.network,
             DebugFlag::Ecb => self.ecb = !self.ecb,
-            DebugFlag::BlastZones => self.blast_zones = !self.blast_zones,
             DebugFlag::StageCollision => self.stage_collision = !self.stage_collision,
-            DebugFlag::SpawnPositions => self.spawn_positions = !self.spawn_positions,
             DebugFlag::AnimationBones => self.animation_bones = !self.animation_bones,
             DebugFlag::AttackHitboxes => self.attack_hitboxes = !self.attack_hitboxes,
             DebugFlag::Hurtboxes => self.hurtboxes = !self.hurtboxes,
@@ -376,7 +352,6 @@ impl DebugSettings {
                 self.draw_through_geometry = !self.draw_through_geometry
             }
             DebugFlag::Camera => self.camera = !self.camera,
-            DebugFlag::LedgeGrab => self.ledge_grab = !self.ledge_grab,
             DebugFlag::FrameStepping => self.frame_stepping = !self.frame_stepping,
         }
     }
@@ -422,7 +397,6 @@ impl Plugin for DebugToolsPlugin {
                     .before(RunGgrsSystems)
                     .run_if(in_state(AppState::InMatch)),
             )
-            .add_systems(Startup, spawn_egui_camera)
             .add_systems(PreUpdate, restore_frame_step_time.after(RunGgrsSystems))
             .add_systems(
                 Update,
@@ -434,26 +408,6 @@ impl Plugin for DebugToolsPlugin {
     }
 }
 
-pub fn spawn_egui_camera(mut commands: Commands, mut egui_global_settings: ResMut<EguiGlobalSettings>,) {
-    egui_global_settings.auto_create_primary_context = false;
-    commands.spawn((
-        // The `PrimaryEguiContext` component requires everything needed to render a primary context.
-        PrimaryEguiContext,
-        Camera2d,
-        // Setting RenderLayers to none makes sure we won't render anything apart from the UI.
-        RenderLayers::none(),
-        Camera {
-            order: 2,
-            output_mode: CameraOutputMode::Write {
-                blend_state: Some(BlendState::ALPHA_BLENDING),
-                clear_color: ClearColorConfig::None,
-            },
-            clear_color: ClearColorConfig::Custom(Color::NONE),
-            ..default()
-        },
-    ));
-}
-
 fn player_handles(players: &Query<&Player>) -> Vec<usize> {
     let mut handles = players
         .iter()
@@ -911,14 +865,6 @@ pub fn stage_collision_enabled(settings: Res<DebugSettings>) -> bool {
     settings.stage_collision
 }
 
-pub fn blast_zones_enabled(settings: Res<DebugSettings>) -> bool {
-    settings.blast_zones
-}
-
-pub fn spawn_positions_enabled(settings: Res<DebugSettings>) -> bool {
-    settings.spawn_positions
-}
-
 pub fn animation_bones_enabled(settings: Res<DebugSettings>) -> bool {
     settings.animation_bones
 }
@@ -935,10 +881,6 @@ pub fn camera_debug_enabled(settings: Res<DebugSettings>) -> bool {
     settings.camera
 }
 
-pub fn ledge_grab_enabled(settings: Res<DebugSettings>) -> bool {
-    settings.ledge_grab
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;

src/debug_tools/save_state.rs

@@ -1,12 +1,22 @@
 use bevy::prelude::*;
 
 use crate::{
-    camera::MatchCamera, fighter::{
-        FighterECB, FighterFacingDirection, FighterHitboxes, FighterHitstop, FighterHitstopShake, FighterInvulnerabilityState, FighterLedgeInformation, FighterPendingRespawn, FighterPreviousFacingDirection, FighterPreviousTranslation, FighterSurfaceState, FighterTranslation, FighterVelocity, animation::FighterAnimationFrame, attack::{
-            FighterDamage, FighterKnockbackVelocity, FighterPendingHitReaction, FighterPendingHits,
-            FighterSolvedHurtboxes, FighterStaleMoveQueue,
-        }, baked_animation::FighterBoneMatrices, state::FighterState,
-    }, input::FighterInput, match_runtime::MatchState, player::Player, stage::line::StageCollision,
+    camera::MatchCamera,
+    fighter::{
+        FighterECB, FighterFacingDirection, FighterHitboxes, FighterHitstop,
+        FighterPreviousFacingDirection, FighterPreviousTranslation, FighterTranslation,
+        FighterVelocity, Grounded,
+        animation::FighterAnimationFrame,
+        attack::{
+            FighterDamage, FighterKnockbackVelocity, FighterPendingHitReaction,
+            FighterReceivedAttacks, FighterSolvedHurtboxes, FighterStaleMoveQueue,
+        },
+        baked_animation::FighterBoneMatrices,
+        state::FighterState,
+    },
+    input::FighterInput,
+    player::Player,
+    stage::line::StageCollision,
 };
 
 #[derive(Resource, Default)]
@@ -18,8 +28,6 @@ pub(super) struct DebugSaveState {
 struct Checkpoint {
     fighters: Vec<FighterCheckpoint>,
     stage_collision: StageCollision,
-    pending_hits: FighterPendingHits,
-    match_state: MatchState,
 }
 
 #[derive(Clone)]
@@ -39,16 +47,13 @@ struct FighterCheckpoint {
     damage: FighterDamage,
     pending_hit_reaction: FighterPendingHitReaction,
     hitstop: FighterHitstop,
-    hitstop_shake: FighterHitstopShake,
     knockback_velocity: FighterKnockbackVelocity,
     stale_moves: FighterStaleMoveQueue,
     hitboxes: FighterHitboxes,
+    received_attacks: FighterReceivedAttacks,
     solved_hurtboxes: FighterSolvedHurtboxes,
     bone_matrices: FighterBoneMatrices,
-    surface: FighterSurfaceState,
-    pending_respawn: FighterPendingRespawn,
-    invulnerability_state: FighterInvulnerabilityState,
-    ledge_information: FighterLedgeInformation,
+    grounded: bool,
 }
 
 pub(super) fn save_or_restore(world: &mut World) {
@@ -92,13 +97,9 @@ pub(super) fn save_or_restore(world: &mut World) {
             };
             checkpoint_fighters.push(checkpoint);
         }
-        let pending_hits = world.resource::<FighterPendingHits>().clone();
-        let match_state = world.resource::<MatchState>().clone();
         world.resource_mut::<DebugSaveState>().checkpoint = Some(Checkpoint {
             fighters: checkpoint_fighters,
             stage_collision,
-            pending_hits,
-            match_state,
         });
         info!("Saved debug game state");
         return;
@@ -143,20 +144,19 @@ pub(super) fn save_or_restore(world: &mut World) {
         entity.insert(saved.damage);
         entity.insert(saved.pending_hit_reaction.clone());
         entity.insert(saved.hitstop);
-        entity.insert(saved.hitstop_shake);
         entity.insert(saved.knockback_velocity);
         entity.insert(saved.stale_moves.clone());
         entity.insert(saved.hitboxes.clone());
+        entity.insert(saved.received_attacks.clone());
         entity.insert(saved.solved_hurtboxes.clone());
         entity.insert(saved.bone_matrices.clone());
-        entity.insert(saved.surface.clone());
-        entity.insert(saved.pending_respawn.clone());
-        entity.insert(saved.invulnerability_state.clone());
-        entity.insert(saved.ledge_information.clone());
+        if saved.grounded {
+            entity.insert(Grounded);
+        } else {
+            entity.remove::<Grounded>();
+        }
     }
-    world.insert_resource(checkpoint.pending_hits.clone());
     world.insert_resource(checkpoint.stage_collision);
-    world.insert_resource(checkpoint.match_state);
     for mut match_camera in world.query::<&mut MatchCamera>().iter_mut(world) {
         match_camera.needs_snap = true;
     }
@@ -181,16 +181,13 @@ fn capture_fighter(world: &World, entity: Entity) -> Option<FighterCheckpoint> {
         damage: *fighter.get::<FighterDamage>()?,
         pending_hit_reaction: fighter.get::<FighterPendingHitReaction>()?.clone(),
         hitstop: *fighter.get::<FighterHitstop>()?,
-        hitstop_shake: *fighter.get::<FighterHitstopShake>()?,
         knockback_velocity: *fighter.get::<FighterKnockbackVelocity>()?,
         stale_moves: fighter.get::<FighterStaleMoveQueue>()?.clone(),
         hitboxes: fighter.get::<FighterHitboxes>()?.clone(),
+        received_attacks: fighter.get::<FighterReceivedAttacks>()?.clone(),
         solved_hurtboxes: fighter.get::<FighterSolvedHurtboxes>()?.clone(),
         bone_matrices: fighter.get::<FighterBoneMatrices>()?.clone(),
-        surface: fighter.get::<FighterSurfaceState>()?.clone(),
-        pending_respawn: fighter.get::<FighterPendingRespawn>()?.clone(),
-        invulnerability_state: fighter.get::<FighterInvulnerabilityState>()?.clone(),
-        ledge_information: fighter.get::<FighterLedgeInformation>()?.clone(),
+        grounded: fighter.contains::<Grounded>(),
     })
 }
 

src/egui_color_convert.rs

@@ -1,16 +0,0 @@
-use bevy_egui::egui::Color32;
-
-pub trait ColorToEgui {
-    fn to_egui(&self) -> Color32;
-}
-
-impl ColorToEgui for bevy::color::Srgba {
-    fn to_egui(&self) -> Color32 {
-        Color32::from_rgba_unmultiplied(
-            (self.red * 255.0) as u8,
-            (self.green * 255.0) as u8,
-            (self.blue * 255.0) as u8,
-            (self.alpha * 255.0) as u8,
-        )
-    }
-}

src/fighter/animation.rs

@@ -84,15 +84,6 @@ pub enum AnimKind {
     AirDodge,
     Fall,
     Turn,
-    CrouchEnter,
-    CrouchIdle,
-    CrouchExit,
-    LedgeWait,
-    LedgeJump,
-    LedgeGetUp,
-    LedgeGrab,
-
-    PlatformPass,
 
     FlinchGround,
     FlinchAir,
@@ -102,8 +93,4 @@ pub enum AnimKind {
     AttackUpTilt,
     AttackForwardTilt,
     AttackDownTilt,
-    AttackNeutralAir,
-    AttackForwardAir,
-    AttackDash,
-    AttackUpSmash,
 }

src/fighter/attack.rs

@@ -1,21 +1,18 @@
 use std::collections::{HashMap, VecDeque};
 
-mod reaction;
-pub mod directional_influence;
-
-use bevy::ecs::entity::{EntityMapper, MapEntities};
 use bevy::prelude::*;
-use bevy_ggrs::{Rollback, RollbackApp, prelude::GgrsSchedule};
+use bevy_ggrs::{Rollback, prelude::GgrsSchedule};
+use fixed_math::SinCos;
 use serde::{Deserialize, Serialize};
 
-use crate::fighter::FighterInvulnerabilityState;
 use crate::{
     fighter::{
-        Fighter, FighterAttributes, FighterFacingDirection, FighterHitboxes,
+        Fighter, FighterAttributes, FighterFacingDirection, FighterHitboxes, FighterHitstop,
         FighterPreviousFacingDirection, FighterPreviousTranslation, FighterRoster,
         FighterTranslation,
         animation::{AnimKind, FighterAnimationFrame},
         baked_animation::{FighterBoneIndexMap, FighterBoneMatrices, FixedMat4},
+        errors::FighterErrors,
         hurtbox::{FixedAffineCapsule, FixedCapsule},
         manifest::FighterManifest,
     },
@@ -33,15 +30,9 @@ use crate::{
 #[derive(Deref, Component, Default, Hash, Debug, Copy, Clone)]
 pub struct FighterKnockbackVelocity(pub FGVec2);
 
-#[derive(Debug, Default, Clone, Copy, Serialize, Deserialize, Component, Hash, PartialEq, Eq, PartialOrd, Ord)]
+#[derive(Debug, Default, Clone, Copy, Serialize, Deserialize, Component, Hash)]
 pub struct FighterDamage(FGi32);
 
-impl std::fmt::Display for FighterDamage {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:.2}", self.0)
-    }
-}
-
 #[derive(Debug, Hash, Clone)]
 pub enum HitReactionKind {
     Flinch,
@@ -50,13 +41,10 @@ pub enum HitReactionKind {
 
 #[derive(Debug, Hash, Clone)]
 pub struct FighterHitReaction {
-    pub launch_velocity: FGi32,
-    pub launch_angle: FGi32,
-    pub victim_hitstop_frames: HitStop,
-    pub attacker_hitstop_frames: HitStop,
+    pub launch_velocity: FGVec2,
+    pub hitstop_frames: HitStop,
     pub hitstun_frames: u32,
     pub kind: HitReactionKind,
-    pub damage: FighterDamage,
 }
 
 #[derive(Component, DerefMut, Deref, Debug, Default, Hash, Clone)]
@@ -73,15 +61,12 @@ pub struct FighterLastAttackDebug {
     pub trajectory_points: Vec<Vec3>,
 }
 
-#[derive(Debug, Default, Clone, Deref, DerefMut, Hash, PartialEq, PartialOrd)]
+#[derive(Debug, Default, Clone, Deref, DerefMut, Hash)]
 pub struct HitStop(u32);
 
 impl HitStop {
-    pub fn new(hitstop: u32) -> Self {
-        HitStop(hitstop)
-    }
     pub fn calculate(attack_damage_stalled: FighterDamage, crouch_cancelling: bool) -> Self {
-        let a = (attack_damage_stalled.0 / FGi32::lit("3.0") + FGi32::lit("3.0")).round_to_zero();
+        let a = (attack_damage_stalled.0 / FGi32::lit("3.0") + FGi32::lit("4.0")).round_to_zero();
         let crouch_cancelling_factor = if crouch_cancelling {
             FGi32::lit("0.66666666")
         } else {
@@ -92,16 +77,6 @@ impl HitStop {
 
         Self(frames)
     }
-
-    pub fn calculate_shake_frames(&self, game_settings: &GameSettings) -> u32 {
-        (FGi32::from_num(self.0) * game_settings.fighter_common.visual_shake_frames_per_hitstop_frame).floor().to_num()
-    }
-}
-
-impl std::fmt::Display for HitStop {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}", self.0)
-    }
 }
 
 #[derive(Clone, Copy, Debug, Serialize, Deserialize)]
@@ -120,15 +95,9 @@ impl KnockbackType {
     }
 }
 
-#[derive(Debug, Default, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
+#[derive(Debug, Default, Clone, Serialize, Deserialize)]
 pub struct Knockback(FGi32);
 
-impl std::fmt::Display for Knockback {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:.2}", self.0)
-    }
-}
-
 impl Knockback {
     pub fn lit(val: &str) -> Self {
         Self(FGi32::lit(val))
@@ -157,15 +126,6 @@ pub enum AttackAngle {
     Sakurai,
 }
 
-impl std::fmt::Display for AttackAngle {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self {
-            AttackAngle::Normal(fixed_i32) => write!(f, "{:.2}º", fixed_i32),
-            AttackAngle::Sakurai => write!(f, "Sakurai"),
-        }
-    }
-}
-
 impl Default for AttackAngle {
     fn default() -> Self {
         AttackAngle::Normal(FGi32::lit("0"))
@@ -180,30 +140,6 @@ impl AttackAngle {
     pub fn make_sakurai() -> Self {
         Self::Sakurai
     }
-
-    pub fn get_angle(&self, knockback: &Knockback, is_receiver_grounded: bool, game_settings: &GameSettings) -> FGi32 {
-        match self {
-            AttackAngle::Normal(angle) => {
-                *angle
-            },
-            AttackAngle::Sakurai => {
-                if !is_receiver_grounded {
-                    game_settings.fighter_common.sakurai_angle_aerial_angle
-                } else if knockback.0 > game_settings.fighter_common.sakurai_angle_knockback_threshold {
-                    game_settings.fighter_common.sakurai_angle_high_knockback_angle
-                } else {
-                    game_settings.fighter_common.sakurai_angle_low_knockback_angle
-                }
-            },
-        }
-    }
-
-    pub fn to_melee_angle_representation(&self) -> FGi32 {
-        match self {
-            AttackAngle::Normal(fixed_i32) => *fixed_i32,
-            AttackAngle::Sakurai => FGi32::lit("361"),
-        }
-    }
 }
 
 #[derive(Serialize, Deserialize, Reflect, PartialEq, Eq, Hash, Clone, Debug, Default, Copy)]
@@ -221,25 +157,23 @@ pub enum AttackKind {
     UpSmash,
     DownSmash,
     ForwardSmash,
-    DashAttack,
 }
 
 impl AttackKind {
     pub fn get_animation(&self) -> AnimKind {
         match self {
-            AttackKind::NeutralAir => AnimKind::AttackNeutralAir,
+            AttackKind::NeutralAir => AnimKind::AttackJab1,
             AttackKind::Jab => AnimKind::AttackJab1,
             AttackKind::UpTilt => AnimKind::AttackUpTilt,
-            AttackKind::ForwardAir => AnimKind::AttackForwardAir,
+            AttackKind::ForwardAir => AnimKind::AttackUpTilt,
             AttackKind::BackAir => AnimKind::AttackUpTilt,
             AttackKind::DownAir => AnimKind::AttackUpTilt,
             AttackKind::UpAir => AnimKind::AttackUpTilt,
             AttackKind::DownTilt => AnimKind::AttackDownTilt,
             AttackKind::ForwardTilt => AnimKind::AttackForwardTilt,
-            AttackKind::UpSmash => AnimKind::AttackUpSmash,
+            AttackKind::UpSmash => AnimKind::AttackUpTilt,
             AttackKind::DownSmash => AnimKind::AttackUpTilt,
             AttackKind::ForwardSmash => AnimKind::AttackUpTilt,
-            AttackKind::DashAttack => AnimKind::AttackDash,
         }
     }
 }
@@ -248,7 +182,6 @@ impl AttackKind {
 #[reflect(opaque)]
 pub struct AttackHitbox {
     pub id: u32,
-    pub group: u32,
     pub bone: String,
     pub damage: FighterDamage,
     pub offset: FGVec3,
@@ -261,14 +194,6 @@ pub struct AttackHitbox {
     pub end_frame: u32,
 }
 
-static ATTACK_HITBOX_ID_PALETTE: [bevy::color::Srgba; 5] = [
-    bevy::color::palettes::tailwind::RED_500,
-    bevy::color::palettes::tailwind::GREEN_500,
-    bevy::color::palettes::tailwind::BLUE_500,
-    bevy::color::palettes::tailwind::FUCHSIA_500,
-    bevy::color::palettes::tailwind::ORANGE_500,
-];
-
 const STALE_MOVE_QUEUE_COUNT: usize = 9;
 
 #[derive(Component, Hash, Clone, Default)]
@@ -316,10 +241,6 @@ impl FighterStaleMoveQueue {
 }
 
 impl AttackHitbox {
-    pub fn get_debug_draw_color(&self) -> bevy::color::Srgba {
-        ATTACK_HITBOX_ID_PALETTE[self.id as usize % ATTACK_HITBOX_ID_PALETTE.len()]
-    }
-
     pub fn validate(&self) -> Result<(), String> {
         if self.bone.trim().is_empty() {
             return Err("bone name is empty".into());
@@ -413,36 +334,6 @@ pub fn update_active_hitbox_list(script: &FighterAttackScript, list: &mut Vec<us
     );
 }
 
-/// Updates both the currently active hitbox intervals and the lifetime of
-/// their per-group victim histories. A group remains immune only while at
-/// least one hitbox belonging to that group is active.
-pub fn update_active_attack(
-    script: &FighterAttackScript,
-    attack: &mut super::FighterActiveAttack,
-    frame: u32,
-) {
-    update_active_hitbox_list(script, &mut attack.active_hitboxes, frame);
-
-    let mut active_groups = Vec::new();
-    for &index in &attack.active_hitboxes {
-        let group = script.hitboxes[index].group;
-        if !active_groups.contains(&group) {
-            active_groups.push(group);
-        }
-    }
-
-    attack.hit_groups.retain(|state| active_groups.contains(&state.group));
-    for group in active_groups {
-        if !attack.hit_groups.iter().any(|state| state.group == group) {
-            attack.hit_groups.push(super::FighterHitGroupState {
-                group,
-                hit_fighters: Vec::new(),
-            });
-        }
-    }
-    attack.hit_groups.sort_unstable_by_key(|state| state.group);
-}
-
 #[derive(Clone, Debug, PartialEq, Hash)]
 pub struct FighterSolvedHurtbox {
     pub hurtbox_idx: usize,
@@ -541,26 +432,15 @@ pub struct FighterAttackScriptAssets {
 #[derive(Component, Clone, Debug, Default, Hash)]
 pub struct FighterSolvedHurtboxes(pub Vec<FighterSolvedHurtbox>);
 
-#[derive(Clone, Debug, Hash)]
-pub struct FighterHit {
-    pub attacker: Entity,
-    pub defender: Entity,
-    pub attack_script: Handle<FighterAttackScript>,
-    pub attack_kind: AttackKind,
-    pub hitbox_index: usize,
-}
-
-#[derive(Resource, Clone, Debug, Default, Hash)]
-pub struct FighterPendingHits(pub Vec<FighterHit>);
-
-impl MapEntities for FighterPendingHits {
-    fn map_entities<M: EntityMapper>(&mut self, entity_mapper: &mut M) {
-        for hit in &mut self.0 {
-            hit.attacker = entity_mapper.get_mapped(hit.attacker);
-            hit.defender = entity_mapper.get_mapped(hit.defender);
-        }
-    }
-}
+#[derive(Component, Clone, Debug, Default, Hash, DerefMut, Deref)]
+pub struct FighterReceivedAttacks(
+    pub  Vec<(
+        /* attacker */ Entity,
+        Handle<FighterAttackScript>,
+        AttackKind,
+        /* hitbox_idx */ usize,
+    )>,
+);
 
 pub fn solve_hurtboxes(
     mut query: Query<(
@@ -618,33 +498,36 @@ pub fn intersect_attacks_with_hurtboxes(
         &Player,
         &FighterStaleMoveQueue,
     )>,
-    query_attacked: Query<(Entity, &FighterSolvedHurtboxes, &FighterInvulnerabilityState)>,
-    mut pending_hits: ResMut<FighterPendingHits>,
+    mut query_attacked: Query<(
+        Entity,
+        &FighterSolvedHurtboxes,
+        &Player,
+        &Fighter,
+        &mut FighterReceivedAttacks,
+    )>,
     attack_scripts: Res<Assets<FighterAttackScript>>,
 ) {
-    pending_hits.0.clear();
-
     for &entity_receiving in &roster.0 {
-        let Ok((_, hurtboxes, invuln_state)) = query_attacked.get(entity_receiving) else {
+        let Ok((_, hurtboxes, _, _receiving_fighter, mut received_attacks)) =
+            query_attacked.get_mut(entity_receiving)
+        else {
             continue;
         };
 
-        if matches!(*invuln_state, FighterInvulnerabilityState::Intangible { .. }) {
-            continue;
-        }
-
         for &entity_hurting in &roster.0 {
             if entity_hurting == entity_receiving {
                 continue;
             }
-
-
             let Ok((_, mut hitboxes, _, _, _)) = query_attacker.get_mut(entity_hurting) else {
                 continue;
             };
             let Some(active_attack) = hitboxes.0.as_mut() else {
                 continue;
             };
+            if active_attack.hit_fighters.contains(&entity_receiving) {
+                continue;
+            }
+
             let attack_script = attack_scripts
                 .get(&active_attack.script)
                 .expect("Attack script should be valid");
@@ -654,15 +537,6 @@ pub fn intersect_attacks_with_hurtboxes(
                 for solved_hitbox in active_attack.solved_hitboxes.iter() {
                     if hurtbox.capsule.intersects(solved_hitbox.capsule) {
                         let candidate = solved_hitbox.hitbox_idx;
-                        let group = attack_script.hitboxes[candidate].group;
-                        let already_hit = active_attack
-                            .hit_groups
-                            .iter()
-                            .find(|state| state.group == group)
-                            .is_some_and(|state| state.hit_fighters.contains(&entity_receiving));
-                        if already_hit {
-                            continue;
-                        }
                         if hitting_hitbox_idx.is_none_or(|current: usize| {
                             attack_script.hitboxes[candidate].id
                                 < attack_script.hitboxes[current].id
@@ -677,43 +551,156 @@ pub fn intersect_attacks_with_hurtboxes(
                 continue;
             };
 
-            pending_hits.0.push(FighterHit {
-                attacker: entity_hurting,
-                defender: entity_receiving,
-                attack_script: active_attack.script.clone(),
-                attack_kind: active_attack.kind,
-                hitbox_index: hitting_hitbox_idx,
-            });
-            
-            let group = attack_script.hitboxes[hitting_hitbox_idx].group;
-            if let Some(state) = active_attack
-                .hit_groups
-                .iter_mut()
-                .find(|state| state.group == group)
-            {
-                state.hit_fighters.push(entity_receiving);
-            }
+            received_attacks.push((
+                entity_hurting,
+                active_attack.script.clone(),
+                active_attack.kind,
+                hitting_hitbox_idx,
+            ));
+            info!("Hit by hitbox {}!!!!", hitting_hitbox_idx);
+
+            active_attack.hit_fighters.push(entity_receiving);
         }
     }
 }
 
+pub fn calculate_received_attacks_trajectories(
+    mut attacker: Query<(
+        &mut FighterStaleMoveQueue,
+        &FighterFacingDirection,
+        &FighterHitboxes,
+        &Player,
+        &mut FighterHitstop,
+    )>,
+    receiver: Query<(
+        &mut FighterReceivedAttacks,
+        &mut FighterDamage,
+        &Fighter,
+        &mut FighterPendingHitReaction,
+    )>,
+    attack_scripts: Res<Assets<FighterAttackScript>>,
+    game_settings: Res<GameSettings>,
+    fighter_manifests: Res<Assets<FighterManifest>>,
+) -> Result {
+    for (mut received_attacks, mut receiver_damage, fighter, mut pending_reactions) in receiver {
+        if received_attacks.is_empty() {
+            continue;
+        }
+
+        // we got attacked, time to calculate the total damage
+
+        let damage_data = received_attacks
+            .iter()
+            .filter_map(|(from_entity, attack_script, attack_kind, hitbox_idx)| {
+                let Ok((stale_move_queue, facing_dir, _hitboxes, player, _attacker_hitstop)) =
+                    attacker.get(*from_entity)
+                else {
+                    return None;
+                };
+
+                let Some(attack_script) = attack_scripts.get(attack_script) else {
+                    return None;
+                };
+
+                let hitbox = &attack_script.hitboxes[*hitbox_idx];
+
+                let damage_received =
+                    stale_move_queue.get_attack_damage_multiplier(*attack_kind) * hitbox.damage.0;
+
+                Some((
+                    from_entity,
+                    damage_received,
+                    hitbox,
+                    attack_script,
+                    matches!(facing_dir, FighterFacingDirection::Left),
+                    player.handle,
+                ))
+            })
+            .collect::<Vec<_>>();
+
+        let total_damage_received_this_frame = damage_data
+            .iter()
+            .map(|(_, damage, ..)| damage)
+            .sum::<FGi32>();
+
+        let fighter_manifest = fighter_manifests
+            .get(&fighter.manifest)
+            .ok_or(FighterErrors::FighterManifestNotFound)?;
+
+        let mut reactions = vec![];
+
+        for (attacker_entity, attack_damage, hitbox, _attack_script, facing_left, attacker_slot) in
+            damage_data
+        {
+            let knockback = hitbox.calculate_knockback(
+                &fighter_manifest.attributes,
+                *receiver_damage,
+                FighterDamage(total_damage_received_this_frame),
+                false,
+                false,
+            );
+
+            let angle = match &hitbox.angle {
+                AttackAngle::Normal(angle) => *angle,
+                AttackAngle::Sakurai => FGi32::lit("32.0"),
+            };
+
+            let launch_angle = if facing_left {
+                FGi32::lit("180.0") - angle
+            } else {
+                angle
+            };
+            let (sin, cos) = launch_angle.sin_cos();
+            let launch_direction = FGVec2::new(cos, sin);
+            let hitstop = HitStop::calculate(FighterDamage(attack_damage), false);
+            reactions.push((
+                *attacker_entity,
+                attacker_slot,
+                FighterHitReaction {
+                    launch_velocity: launch_direction * knockback.get_launch_speed(&game_settings),
+                    hitstun_frames: knockback.get_hitstun_frames(&game_settings),
+                    hitstop_frames: hitstop,
+                    kind: HitReactionKind::Flinch,
+                },
+            ));
+        }
+
+        receiver_damage.0 += total_damage_received_this_frame;
+
+        for (attacker_entity, _, reaction) in reactions.iter() {
+            let Ok((.., mut hitstop)) = attacker.get_mut(*attacker_entity) else {
+                continue;
+            };
+
+            hitstop.remaining_frames = reaction.hitstop_frames.max(hitstop.remaining_frames);
+        }
+
+        // Pick attack by port priority
+        pending_reactions.0 = reactions
+            .into_iter()
+            .min_by(|(_, port_a, _), (_, port_b, _)| port_a.cmp(port_b))
+            .map(|(_, _, reaction)| reaction);
+
+        received_attacks.clear();
+    }
+
+    Ok(())
+}
+
 pub struct FighterAttackPlugin;
 
 impl Plugin for FighterAttackPlugin {
     fn build(&self, app: &mut App) {
-        app.init_resource::<FighterPendingHits>()
-            .add_plugins(reaction::FighterReactionPlugin)
-            .rollback_resource_with_clone::<FighterPendingHits>()
-            .update_resource_with_map_entities::<FighterPendingHits>()
-            .checksum_resource_with_hash::<FighterPendingHits>();
         app.add_systems(
             GgrsSchedule,
             (
                 solve_hurtboxes,
                 solve_hitboxes,
                 intersect_attacks_with_hurtboxes,
+                calculate_received_attacks_trajectories,
             )
                 .chain()
+                .after(crate::fighter::baked_animation::update_fighter_bone_matrices)
                 .in_set(GameplaySet::Attacks),
         );
     }

src/fighter/attack/directional_influence.rs

@@ -1,69 +0,0 @@
-use fixed::traits::ToFixed;
-use fixed_math::SinCos;
-
-use crate::math::{
-    int::{FGWide, FGi32},
-    vec::FGVec2,
-};
-
-/// Applies DI to a given attack direction
-pub fn apply_directional_influence(
-    receiver_stick: FGVec2,
-    attack_angle: FGi32,
-    di_max_angle: FGi32,
-) -> FGVec2 {
-    let (sin, cos) = attack_angle.sin_cos();
-    let base_launch_direction = FGVec2::new(cos, sin);
-
-    let Some(base_launch_direction) = base_launch_direction.normalize() else {
-        return FGVec2::ZERO;
-    };
-
-    if receiver_stick.length_squared().is_zero() {
-        return base_launch_direction;
-    }
-
-    let normal = FGVec2::new(-base_launch_direction.y, base_launch_direction.x);
-    let di_amount = receiver_stick.dot(normal);
-    let angle_change = di_amount * di_max_angle.to_fixed::<FGWide>();
-    let angle_change = angle_change.clamp(
-        -di_max_angle.to_fixed::<FGWide>(),
-        di_max_angle.to_fixed::<FGWide>(),
-    );
-    let (sin, cos) = (attack_angle + angle_change.to_fixed::<FGi32>()).sin_cos();
-    FGVec2::new(cos, sin).normalize_or_zero()
-}
-
-#[cfg(test)]
-mod test {
-    use crate::{
-        fighter::attack::directional_influence::apply_directional_influence,
-        math::{int::FGi32, vec::FGVec2},
-    };
-
-    #[test]
-    fn di_zero_passes_unmodified() {
-        let di = apply_directional_influence(FGVec2::ZERO, FGi32::lit("0.0"), FGi32::lit("18.0"));
-        const EPSILON: FGi32 = FGi32::from_bits(4);
-        assert!(di.x.abs_diff(FGi32::ONE) < EPSILON);
-        assert!(di.y.abs_diff(FGi32::ZERO) < EPSILON);
-    }
-
-    #[test]
-    fn di_applies_on_the_correct_side() {
-        let di = apply_directional_influence(
-            FGVec2::lit("0.0", "1.0"),
-            FGi32::lit("0.0"),
-            FGi32::lit("18.0"),
-        );
-        assert!(di.x > FGi32::ZERO);
-        assert!(di.y > FGi32::ZERO);
-        let di = apply_directional_influence(
-            FGVec2::lit("0.0", "-1.0"),
-            FGi32::lit("0.0"),
-            FGi32::lit("18.0"),
-        );
-        assert!(di.x > FGi32::ZERO);
-        assert!(di.y < FGi32::ZERO);
-    }
-}

src/fighter/attack/reaction.rs

@@ -1,215 +0,0 @@
-use bevy::prelude::*;
-use bevy_ggrs::prelude::GgrsSchedule;
-
-use super::*;
-use crate::{
-    fighter::{
-        Fighter, FighterHitboxes, FighterHitstop, FighterHitstopShake,
-        FighterHitstopShakeKind, FighterHitstopShakeRole, FighterPendingHitReaction,
-        FighterStaleMoveQueue, FighterSurfaceState, errors::FighterErrors,
-        manifest::FighterManifest, state::FighterState,
-    },
-    game_settings::GameSettings,
-    math::int::FGi32,
-    player::Player,
-    schedule::GameplaySet,
-    scripting::FighterAttackScript,
-};
-
-pub fn resolve_fighter_hits(
-    mut pending_hits: ResMut<FighterPendingHits>,
-    mut attacker: Query<(
-        &mut FighterStaleMoveQueue,
-        &mut FighterHitboxes,
-        &Player,
-        &mut FighterHitstop,
-        &mut FighterHitstopShake,
-        &FighterTranslation,
-    )>,
-    mut receiver: Query<(
-        &mut FighterDamage,
-        &Fighter,
-        &mut FighterPendingHitReaction,
-        &FighterState,
-        &FighterInvulnerabilityState,
-        &FighterSurfaceState,
-        &FighterTranslation,
-    )>,
-    attack_scripts: Res<Assets<FighterAttackScript>>,
-    game_settings: Res<GameSettings>,
-    fighter_manifests: Res<Assets<FighterManifest>>,
-) -> Result {
-    let hits = std::mem::take(&mut pending_hits.0);
-    let mut hit_offset = 0;
-
-    while hit_offset < hits.len() {
-        let defender = hits[hit_offset].defender;
-        let next_defender = hits[hit_offset..]
-            .iter()
-            .position(|hit| hit.defender != defender)
-            .map_or(hits.len(), |offset| hit_offset + offset);
-
-        let Ok((
-            mut receiver_damage,
-            fighter,
-            mut pending_reaction,
-            receiver_state,
-            invuln_state,
-            receiver_surface_state,
-            receiver_translation,
-        )) = receiver.get_mut(defender)
-        else {
-            hit_offset = next_defender;
-            continue;
-        };
-
-        let damage_data = hits[hit_offset..next_defender]
-            .iter()
-            .filter_map(|hit| {
-                let Ok((stale_move_queue, _, player, _, _, attacker_translation)) =
-                    attacker.get(hit.attacker)
-                else {
-                    return None;
-                };
-                let attack_script = attack_scripts.get(&hit.attack_script)?;
-                let hitbox = attack_script.hitboxes.get(hit.hitbox_index)?;
-                let damage_received = stale_move_queue
-                    .get_attack_damage_multiplier(hit.attack_kind)
-                    * hitbox.damage.0;
-                let angle_flip = receiver_translation.0.x <= attacker_translation.0.x;
-                Some((
-                    hit.attacker,
-                    damage_received,
-                    hitbox,
-                    player.handle,
-                    angle_flip,
-                ))
-            })
-            .collect::<Vec<_>>();
-
-        let total_damage_received_this_frame = damage_data
-            .iter()
-            .map(|(_, damage, ..)| damage)
-            .sum::<FGi32>();
-        let fighter_manifest = fighter_manifests
-            .get(&fighter.manifest)
-            .ok_or(FighterErrors::FighterManifestNotFound)?;
-        let mut reactions = Vec::with_capacity(damage_data.len());
-
-        let crouch_canceling = if let FighterState::Crouch(crouch_state) = &receiver_state {
-            crouch_state.is_crouch_cancelling()
-        } else {
-            false
-        };
-
-        for (attacker_entity, attack_damage, hitbox, attacker_slot, angle_flip) in damage_data {
-            let knockback = hitbox.calculate_knockback(
-                &fighter_manifest.attributes,
-                *receiver_damage,
-                FighterDamage(total_damage_received_this_frame),
-                false,
-                crouch_canceling,
-            );
-            let launch_angle = hitbox.angle.get_angle(
-                &knockback,
-                receiver_surface_state.is_grounded(),
-                &game_settings,
-            );
-
-            let launch_angle = if angle_flip {
-                FGi32::lit("180.0") - launch_angle
-            } else {
-                launch_angle
-            };
-
-            // Attacker hitstop and data
-            let victim_hitstop_frames = HitStop::calculate(FighterDamage(attack_damage), crouch_canceling);
-            let attacker_hitstop_frames = HitStop::calculate(FighterDamage(attack_damage), false);
-            reactions.push((
-                attacker_entity,
-                attacker_slot,
-                FighterHitReaction {
-                    launch_velocity: knockback.get_launch_speed(&game_settings),
-                    launch_angle,
-                    hitstun_frames: knockback.get_hitstun_frames(&game_settings),
-                    victim_hitstop_frames,
-                    attacker_hitstop_frames,
-                    kind: HitReactionKind::Flinch,
-                    damage: FighterDamage(attack_damage),
-                },
-            ));
-        }
-
-        match invuln_state {
-            FighterInvulnerabilityState::Vulnerable => {
-                receiver_damage.0 += total_damage_received_this_frame
-            }
-            _ => (),
-        }
-
-        for (attacker_entity, _, reaction) in &reactions {
-            let Ok((.., _, mut hitstop, mut hitstop_shake, _)) = attacker.get_mut(*attacker_entity)
-            else {
-                continue;
-            };
-
-            if hitstop.remaining_frames < reaction.attacker_hitstop_frames.0 {
-                let shake_kind = if receiver_state.is_visually_grounded() {
-                    FighterHitstopShakeKind::Horizontal
-                } else {
-                    FighterHitstopShakeKind::Vertical
-                };
-                hitstop.remaining_frames = reaction.attacker_hitstop_frames.0;
-                let shake_frames = reaction
-                    .attacker_hitstop_frames
-                    .calculate_shake_frames(&game_settings);
-                hitstop_shake.total_frames = shake_frames;
-                hitstop_shake.remaining_frames = shake_frames;
-                hitstop_shake.kind = shake_kind;
-                hitstop_shake.role = FighterHitstopShakeRole::Attacker;
-            }
-        }
-
-        match invuln_state {
-            FighterInvulnerabilityState::Vulnerable => {
-                pending_reaction.0 = reactions
-                    .into_iter()
-                    .min_by(|(_, port_a, _), (_, port_b, _)| port_a.cmp(port_b))
-                    .map(|(_, _, reaction)| reaction);
-            }
-            _ => (),
-        }
-
-        hit_offset = next_defender;
-    }
-
-    for hit in hits {
-        let Ok((mut stale_move_queue, mut hitboxes, ..)) =
-            attacker.get_mut(hit.attacker)
-        else {
-            continue;
-        };
-
-        if let Some(ref mut hitbox) = hitboxes.0 {
-            if !hitbox.stalled {
-                hitbox.stalled = true;
-                stale_move_queue.push(hitbox.kind);
-            }
-        }
-    }
-
-    Ok(())
-}
-
-pub struct FighterReactionPlugin;
-
-impl Plugin for FighterReactionPlugin {
-    fn build(&self, app: &mut App) {
-        app.add_systems(
-            GgrsSchedule,
-            resolve_fighter_hits
-                .in_set(GameplaySet::Attacks)
-                .after(super::intersect_attacks_with_hurtboxes),
-        );
-    }
-}

src/fighter/attributes.rs

@@ -9,10 +9,6 @@ use crate::{input::FighterInputFrame, math::int::FGi32};
 #[derive(Asset, Clone, Copy, Reflect, Serialize, Deserialize)]
 #[reflect(opaque)]
 pub struct FighterAttributes {
-    /// Fixed horizontal offset of the fighter's grounded pushbox center.
-    pub pushbox_offset: FGi32,
-    /// Fixed horizontal radius used for grounded fighter-to-fighter pushing.
-    pub pushbox_radius: FGi32,
     pub base_walk_accel: FGi32,
     pub stick_walk_accel: FGi32,
     pub max_walk_vel: FGi32,
@@ -41,18 +37,12 @@ pub struct FighterAttributes {
     pub ground_friction: FGi32,
     pub terminal_velocity: FGi32,
     pub gravity: FGi32,
-    pub fast_fall_speed: FGi32,
     pub weight: FGi32,
     pub air_friction: FGi32,
 
     pub air_dodge_duration: u32,
     pub air_dodge_velocity: FGi32,
     pub air_dodge_decay: FGi32,
-
-    pub air_dodge_intangible_duration: u32,
-    pub air_dodge_intangible_start: u32,
-
-    pub dash_attack_cancel_window: u32,
 }
 
 impl FighterAttributes {
@@ -60,9 +50,6 @@ impl FighterAttributes {
         if self.weight <= FGi32::ZERO {
             return Err("weight must be positive".into());
         }
-        if self.pushbox_radius <= FGi32::ZERO {
-            return Err("pushbox radius must be positive".into());
-        }
         Ok(())
     }
 

src/fighter/baked_animation/asset_baking.rs

@@ -1,509 +0,0 @@
-use super::{
-    BAKED_ANIMATION_FPS,
-    runtime::{BakedAnimationClip, BakedFighterAnimations},
-};
-use crate::fighter::{animation::AnimKind, manifest::FighterManifest};
-use crate::math::fixed_transform::FixedMat4;
-use bevy::{
-    asset::{
-        AssetLoader, AssetPath, AsyncWriteExt, LoadContext,
-        io::{Reader, Writer},
-        processor::LoadTransformAndSave,
-        saver::{AssetSaver, SavedAsset},
-        transformer::{AssetTransformer, TransformedAsset},
-    },
-    prelude::*,
-    reflect::TypePath,
-};
-use serde::Deserialize;
-use std::{collections::HashMap, io, path::Path};
-
-#[derive(Deserialize)]
-struct FighterBakeDeclaration {
-    manifest_path: String,
-}
-#[derive(Asset, TypePath)]
-struct FighterBakeSource {
-    model_bytes: Vec<u8>,
-    buffers: Vec<Vec<u8>>,
-    animations: HashMap<AnimKind, String>,
-    root_motion_bone: String,
-}
-#[derive(Default, TypePath)]
-struct FighterBakeSourceLoader;
-
-impl AssetLoader for FighterBakeSourceLoader {
-    type Asset = FighterBakeSource;
-    type Settings = ();
-    type Error = io::Error;
-    async fn load(
-        &self,
-        reader: &mut dyn Reader,
-        _: &Self::Settings,
-        load_context: &mut LoadContext<'_>,
-    ) -> Result<Self::Asset, Self::Error> {
-        let mut declaration = Vec::new();
-        reader.read_to_end(&mut declaration).await?;
-        let declaration: FighterBakeDeclaration = ron::de::from_bytes(&declaration)
-            .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-        let manifest_bytes = load_context
-            .read_asset_bytes(&declaration.manifest_path)
-            .await
-            .map_err(|error| io::Error::other(error.to_string()))?;
-        let manifest: FighterManifest = ron::de::from_bytes(&manifest_bytes)
-            .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-        // `read_asset_bytes` uses the processor's processed asset source. This
-        // deliberately allows `model_path` to point at a `.blend`: the blend
-        // processor has already converted it to a hybrid GLB by this point.
-        let model_bytes = load_context
-            .read_asset_bytes(&manifest.model_path)
-            .await
-            .map_err(|error| io::Error::other(error.to_string()))?;
-        let gltf = gltf::Gltf::from_slice(&model_bytes)
-            .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-        let mut buffers = Vec::with_capacity(gltf.buffers().len());
-        for buffer in gltf.buffers() {
-            let bytes = match buffer.source() {
-                gltf::buffer::Source::Uri(uri) => load_context
-                    .read_asset_bytes(AssetPath::from_path_buf(
-                        Path::new(&manifest.model_path)
-                            .parent()
-                            .unwrap_or_else(|| Path::new(""))
-                            .join(uri),
-                    ))
-                    .await
-                    .map_err(|error| io::Error::other(error.to_string()))?,
-                gltf::buffer::Source::Bin => gltf.blob.clone().ok_or_else(|| {
-                    io::Error::new(io::ErrorKind::InvalidData, "missing glTF binary blob")
-                })?,
-            };
-            buffers.push(bytes);
-        }
-        Ok(FighterBakeSource {
-            model_bytes,
-            buffers,
-            animations: manifest.animations,
-            root_motion_bone: manifest.root_motion_bone,
-        })
-    }
-    fn extensions(&self) -> &[&str] {
-        &["fighterbake"]
-    }
-}
-
-#[derive(Default, TypePath)]
-struct BakedFighterAnimationsLoader;
-impl AssetLoader for BakedFighterAnimationsLoader {
-    type Asset = BakedFighterAnimations;
-    type Settings = ();
-    type Error = io::Error;
-    async fn load(
-        &self,
-        reader: &mut dyn Reader,
-        _: &Self::Settings,
-        _: &mut LoadContext<'_>,
-    ) -> Result<Self::Asset, Self::Error> {
-        let mut bytes = Vec::new();
-        reader.read_to_end(&mut bytes).await?;
-        bincode::deserialize(&bytes)
-            .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))
-    }
-    fn extensions(&self) -> &[&str] {
-        &["fighterbake"]
-    }
-}
-
-#[derive(Default, TypePath)]
-struct FighterBakeTransformer;
-impl AssetTransformer for FighterBakeTransformer {
-    type AssetInput = FighterBakeSource;
-    type AssetOutput = BakedFighterAnimations;
-    type Settings = ();
-    type Error = io::Error;
-    async fn transform<'a>(
-        &'a self,
-        source: TransformedAsset<Self::AssetInput>,
-        _: &'a Self::Settings,
-    ) -> Result<TransformedAsset<Self::AssetOutput>, Self::Error> {
-        let baked = bake_gltf(
-            &source.model_bytes,
-            &source.buffers,
-            &source.animations,
-            &source.root_motion_bone,
-        )?;
-        Ok(source.replace_asset(baked))
-    }
-}
-
-#[derive(Default, TypePath)]
-struct BakedFighterAnimationsSaver;
-impl AssetSaver for BakedFighterAnimationsSaver {
-    type Asset = BakedFighterAnimations;
-    type Settings = ();
-    type OutputLoader = BakedFighterAnimationsLoader;
-    type Error = io::Error;
-    async fn save(
-        &self,
-        writer: &mut Writer,
-        asset: SavedAsset<'_, '_, Self::Asset>,
-        _: &Self::Settings,
-        _: AssetPath<'_>,
-    ) -> Result<(), Self::Error> {
-        let bytes = bincode::serialize(&*asset)
-            .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-        writer.write_all(&bytes).await
-    }
-}
-type FighterBakeProcessor = LoadTransformAndSave<
-    FighterBakeSourceLoader,
-    FighterBakeTransformer,
-    BakedFighterAnimationsSaver,
->;
-
-pub struct BakedAnimationPlugin;
-pub struct BakedAnimationVisualPlugin;
-
-pub struct BakedAnimationAssetProcessingPlugin;
-
-impl Plugin for BakedAnimationAssetProcessingPlugin {
-    fn build(&self, app: &mut App) {
-        app.init_asset::<BakedFighterAnimations>()
-            .register_asset_loader(FighterBakeSourceLoader)
-            .register_asset_loader(BakedFighterAnimationsLoader)
-            .register_asset_processor(FighterBakeProcessor::new(
-                FighterBakeTransformer,
-                BakedFighterAnimationsSaver,
-            ))
-            .set_default_asset_processor::<FighterBakeProcessor>("fighterbake");
-    }
-}
-
-impl Plugin for BakedAnimationPlugin {
-    fn build(&self, app: &mut App) {
-        app.add_plugins((
-            BakedAnimationAssetProcessingPlugin,
-            BakedAnimationVisualPlugin,
-        ))
-        .add_systems(
-            bevy_ggrs::prelude::GgrsSchedule,
-            super::runtime::update_fighter_bone_matrices
-                .in_set(super::BakedAnimationSamplingSet)
-                .in_set(crate::schedule::GameplaySet::Animation),
-        );
-    }
-}
-
-impl Plugin for BakedAnimationVisualPlugin {
-    fn build(&self, app: &mut App) {
-        app.add_systems(
-            Update,
-            super::visual_binding::apply_baked_fighter_visual_pose
-                .after(super::BakedAnimationSamplingSet),
-        )
-        .add_observer(super::visual_binding::bind_fighter_visual_bones);
-    }
-}
-
-fn bake_gltf(
-    bytes: &[u8],
-    buffer_bytes: &[Vec<u8>],
-    animations: &HashMap<AnimKind, String>,
-    root_motion_bone: &str,
-) -> io::Result<BakedFighterAnimations> {
-    let gltf = gltf::Gltf::from_slice(bytes)
-        .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
-    let buffers = gltf
-        .buffers()
-        .zip(buffer_bytes)
-        .map(|(buffer, bytes)| {
-            if bytes.len() < buffer.length() {
-                return Err(io::Error::new(
-                    io::ErrorKind::InvalidData,
-                    format!(
-                        "glTF buffer {} is too short: expected {}, got {}",
-                        buffer.index(),
-                        buffer.length(),
-                        bytes.len()
-                    ),
-                ));
-            }
-            Ok(gltf::buffer::Data(bytes.clone()))
-        })
-        .collect::<io::Result<Vec<_>>>()?;
-    if buffers.len() != gltf.buffers().len() {
-        return Err(io::Error::new(
-            io::ErrorKind::InvalidData,
-            "glTF buffer data is incomplete",
-        ));
-    }
-    bake_gltf_document(gltf.document, buffers, animations, root_motion_bone)
-}
-
-pub(super) fn bake_gltf_document(
-    document: gltf::Document,
-    buffers: Vec<gltf::buffer::Data>,
-    animations: &HashMap<AnimKind, String>,
-    root_motion_bone: &str,
-) -> io::Result<BakedFighterAnimations> {
-    let nodes: Vec<_> = document.nodes().collect();
-    if nodes.is_empty() {
-        return Err(io::Error::new(
-            io::ErrorKind::InvalidData,
-            "fighter model has no nodes",
-        ));
-    }
-    let mut parents = vec![None; nodes.len()];
-    for node in &nodes {
-        for child in node.children() {
-            parents[child.index()] = Some(node.index());
-        }
-    }
-    let names = nodes
-        .iter()
-        .map(|node| {
-            node.name().map(str::to_owned).ok_or_else(|| {
-                io::Error::new(
-                    io::ErrorKind::InvalidData,
-                    format!("node {} has no name", node.index()),
-                )
-            })
-        })
-        .collect::<io::Result<Vec<_>>>()?;
-    let root_bone_index = names
-        .iter()
-        .position(|name| name == root_motion_bone)
-        .ok_or_else(|| {
-            io::Error::new(
-                io::ErrorKind::InvalidData,
-                format!("fighter model has no root-motion bone named {root_motion_bone}"),
-            )
-        })?;
-    let mut pending = HashMap::<&str, Vec<AnimKind>>::new();
-    for (kind, name) in animations {
-        pending.entry(name).or_default().push(*kind);
-    }
-    let mut clips = Vec::with_capacity(pending.len());
-    let mut clip_indices = HashMap::with_capacity(animations.len());
-    for animation in document.animations() {
-        let name = animation.name().ok_or_else(|| {
-            io::Error::new(
-                io::ErrorKind::InvalidData,
-                format!("animation {} has no name", animation.index()),
-            )
-        })?;
-        let Some(kinds) = pending.remove(name) else {
-            continue;
-        };
-        let channels = animation
-            .channels()
-            .map(|channel| read_channel(channel, &buffers))
-            .collect::<io::Result<Vec<_>>>()?;
-        let duration = channels
-            .iter()
-            .filter_map(Channel::duration)
-            .fold(0.0_f32, f32::max);
-        let frame_count = baked_frame_count(duration, BAKED_ANIMATION_FPS);
-        let mut frames = Vec::with_capacity(frame_count);
-        let mut root_positions = Vec::with_capacity(frame_count);
-        for frame in 0..frame_count {
-            let time = (frame as f32 / BAKED_ANIMATION_FPS as f32).min(duration);
-            let local = nodes
-                .iter()
-                .map(|node| local_transform(node.clone(), &channels, time))
-                .collect::<io::Result<Vec<_>>>()?;
-            let mut model = vec![None; local.len()];
-            let root = super::runtime::resolve_model_transform(
-                root_bone_index,
-                &parents,
-                &local,
-                &mut model,
-            )?;
-            root_positions.push(root.get_translation());
-            frames.push(local);
-        }
-        let index = clips.len();
-        clips.push(BakedAnimationClip {
-            frames,
-            root_positions,
-        });
-        for kind in kinds {
-            clip_indices.insert(kind, index);
-        }
-    }
-    if clips.is_empty() {
-        return Err(io::Error::new(
-            io::ErrorKind::InvalidData,
-            "fighter model has no animations",
-        ));
-    }
-    if !pending.is_empty() {
-        let mut missing = pending.keys().copied().collect::<Vec<_>>();
-        missing.sort_unstable();
-        return Err(io::Error::new(
-            io::ErrorKind::InvalidData,
-            format!(
-                "fighter model has no animations named {}",
-                missing.join(", ")
-            ),
-        ));
-    }
-    Ok(BakedFighterAnimations {
-        frame_rate: BAKED_ANIMATION_FPS,
-        bone_names: names,
-        parents,
-        root_bone_index,
-        clips,
-        clip_indices,
-    })
-}
-
-pub(super) fn baked_frame_count(duration: f32, frame_rate: u32) -> usize {
-    let frame = duration as f64 * frame_rate as f64;
-    let nearest_frame = frame.round();
-    let last_frame = if (frame - nearest_frame).abs() < 0.0001 {
-        nearest_frame
-    } else {
-        frame.ceil()
-    };
-    last_frame as usize + 1
-}
-
-#[derive(Clone)]
-pub(super) struct Channel {
-    pub(super) node: usize,
-    pub(super) property: gltf::animation::Property,
-    pub(super) interpolation: gltf::animation::Interpolation,
-    pub(super) times: Vec<f32>,
-    pub(super) values: ChannelValues,
-}
-impl Channel {
-    fn duration(&self) -> Option<f32> {
-        self.times.last().copied()
-    }
-}
-#[derive(Clone)]
-pub(super) enum ChannelValues {
-    Vec3(Vec<[f32; 3]>),
-    Rotation(Vec<[f32; 4]>),
-}
-
-fn read_channel(
-    channel: gltf::animation::Channel<'_>,
-    buffers: &[gltf::buffer::Data],
-) -> io::Result<Channel> {
-    let reader = channel.reader(|buffer| Some(&buffers[buffer.index()].0));
-    let times = reader
-        .read_inputs()
-        .ok_or_else(|| {
-            io::Error::new(io::ErrorKind::InvalidData, "animation channel has no input")
-        })?
-        .collect();
-    let values = match reader.read_outputs().ok_or_else(|| {
-        io::Error::new(
-            io::ErrorKind::InvalidData,
-            "animation channel has no output",
-        )
-    })? {
-        gltf::animation::util::ReadOutputs::Translations(values)
-        | gltf::animation::util::ReadOutputs::Scales(values) => {
-            ChannelValues::Vec3(values.collect())
-        }
-        gltf::animation::util::ReadOutputs::Rotations(values) => {
-            ChannelValues::Rotation(values.into_f32().collect())
-        }
-        gltf::animation::util::ReadOutputs::MorphTargetWeights(_) => {
-            return Err(io::Error::new(
-                io::ErrorKind::InvalidData,
-                "morph target animation is not supported for bone baking",
-            ));
-        }
-    };
-    if channel.sampler().interpolation() == gltf::animation::Interpolation::CubicSpline {
-        return Err(io::Error::new(
-            io::ErrorKind::InvalidData,
-            "cubic spline animation is not supported for bone baking",
-        ));
-    }
-    Ok(Channel {
-        node: channel.target().node().index(),
-        property: channel.target().property(),
-        interpolation: channel.sampler().interpolation(),
-        times,
-        values,
-    })
-}
-
-fn local_transform(node: gltf::Node<'_>, channels: &[Channel], time: f32) -> io::Result<FixedMat4> {
-    let (mut translation, mut rotation, mut scale) = match node.transform() {
-        gltf::scene::Transform::Decomposed {
-            translation,
-            rotation,
-            scale,
-        } => (
-            Vec3::from(translation),
-            Quat::from_array(rotation),
-            Vec3::from(scale),
-        ),
-        gltf::scene::Transform::Matrix { matrix } => {
-            return FixedMat4::from_mat4(Mat4::from_cols_array_2d(&matrix));
-        }
-    };
-    for channel in channels
-        .iter()
-        .filter(|channel| channel.node == node.index())
-    {
-        match (&channel.values, channel.property) {
-            (ChannelValues::Vec3(values), gltf::animation::Property::Translation) => {
-                translation = Vec3::from(sample_vec3(channel, values, time))
-            }
-            (ChannelValues::Vec3(values), gltf::animation::Property::Scale) => {
-                scale = Vec3::from(sample_vec3(channel, values, time))
-            }
-            (ChannelValues::Rotation(values), gltf::animation::Property::Rotation) => {
-                rotation = Quat::from_array(sample_rotation(channel, values, time))
-            }
-            _ => {
-                return Err(io::Error::new(
-                    io::ErrorKind::InvalidData,
-                    "animation property does not match its values",
-                ));
-            }
-        }
-    }
-    FixedMat4::from_mat4(Mat4::from_scale_rotation_translation(
-        scale,
-        rotation,
-        translation,
-    ))
-}
-fn sample_index(channel: &Channel, time: f32) -> (usize, usize, f32) {
-    let next = channel.times.partition_point(|key| *key <= time);
-    if next == 0 {
-        return (0, 0, 0.0);
-    }
-    if next == channel.times.len() {
-        let last = next - 1;
-        return (last, last, 0.0);
-    }
-    let previous = next - 1;
-    let factor = (time - channel.times[previous]) / (channel.times[next] - channel.times[previous]);
-    (previous, next, factor)
-}
-pub(super) fn sample_vec3(channel: &Channel, values: &[[f32; 3]], time: f32) -> [f32; 3] {
-    let (from, to, factor) = sample_index(channel, time);
-    if channel.interpolation == gltf::animation::Interpolation::Step {
-        return values[from];
-    }
-    Vec3::from(values[from])
-        .lerp(Vec3::from(values[to]), factor)
-        .to_array()
-}
-fn sample_rotation(channel: &Channel, values: &[[f32; 4]], time: f32) -> [f32; 4] {
-    let (from, to, factor) = sample_index(channel, time);
-    if channel.interpolation == gltf::animation::Interpolation::Step {
-        return values[from];
-    }
-    Quat::from_array(values[from])
-        .slerp(Quat::from_array(values[to]), factor)
-        .to_array()
-}

src/fighter/baked_animation/mod.rs

@@ -1,587 +0,0 @@
-//! Deterministic, fighter-local skeletal animation samples for gameplay and rendering.
-
-mod asset_baking;
-mod runtime;
-mod visual_binding;
-
-pub use crate::math::fixed_transform::FixedMat4;
-pub use asset_baking::{
-    BakedAnimationAssetProcessingPlugin, BakedAnimationPlugin, BakedAnimationVisualPlugin,
-};
-pub use runtime::{
-    BakedAnimationClip, BakedFighterAnimations, FighterBoneIndexMap, FighterBoneMatrices,
-    resample_fighter_bone_matrices, update_fighter_bone_matrices,
-};
-
-#[derive(bevy::prelude::SystemSet, Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct BakedAnimationSamplingSet;
-
-pub const BAKED_ANIMATION_FPS: u32 = 60;
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::fighter::{animation::AnimKind, manifest::FighterManifest};
-    use crate::math::{int::FGi32, vec3::FGVec3};
-    use asset_baking::{
-        Channel, ChannelValues, bake_gltf_document, baked_frame_count, sample_vec3,
-    };
-    use serde_json::json;
-    use std::collections::HashMap;
-
-    #[test]
-    fn configured_fighter_clips_bake_to_fixed_point_frames() {
-        let manifest: FighterManifest = ron::from_str(include_str!(
-            "../../../assets/fighters/test/test.fighter.ron"
-        ))
-        .unwrap();
-        let (document, buffers) = test_gltf(&manifest.animations);
-        let baked = bake_gltf_document(
-            document,
-            buffers,
-            &manifest.animations,
-            &manifest.root_motion_bone,
-        )
-        .unwrap();
-
-        assert_eq!(baked.frame_rate, BAKED_ANIMATION_FPS);
-        assert_eq!(baked.frame_count(AnimKind::Wait), Some(121));
-        assert_eq!(baked.frame_count(AnimKind::Walk), Some(33));
-        assert_eq!(baked.frame_count(AnimKind::Run), Some(33));
-        assert_eq!(baked.frame_count(AnimKind::Dash), Some(21));
-        assert_eq!(baked.frame_count(AnimKind::Landing), Some(9));
-        assert_eq!(baked.frame_count(AnimKind::JumpBack), Some(57));
-        assert_eq!(baked.clip_indices.len(), manifest.animations.len());
-        assert_eq!(
-            baked.clip(AnimKind::Wait).unwrap().frames[0].len(),
-            baked.bone_names.len()
-        );
-        assert_eq!(baked.parents.len(), baked.bone_names.len());
-        assert_eq!(baked.root_bone_index, 0);
-        assert_eq!(
-            baked.initial_root_position(AnimKind::Wait, FGi32::lit("2")),
-            Some(FGVec3::ZERO)
-        );
-        assert_eq!(
-            baked.root_motion_cycle_delta(AnimKind::Wait, FGi32::lit("2")),
-            Some(FGVec3::lit("2", "0", "0"))
-        );
-    }
-
-    /// Builds the smallest glTF document that still exercises the complete
-    /// animation-baking path. Keeping this fixture in memory avoids making
-    /// unit tests depend on the production Blender asset or Blender itself.
-    fn test_gltf(
-        animations: &HashMap<AnimKind, String>,
-    ) -> (gltf::Document, Vec<gltf::buffer::Data>) {
-        let mut names: Vec<_> = animations.values().cloned().collect();
-        names.sort();
-        names.dedup();
-
-        let mut data = Vec::new();
-        let mut buffer_views = Vec::new();
-        let mut accessors = Vec::new();
-        let mut gltf_animations = Vec::new();
-
-        for name in names {
-            let duration: f32 = match name.as_str() {
-                "Idle_Loop_Game" => 2.0,
-                "Walk_Loop_IK_Game" | "Run_Game" => 0.533333361,
-                "Dash_Game" => 0.333333343,
-                "Jump_Land_Game" => 0.133333340,
-                "JumpB_Game" => 56.0 / 60.0,
-                _ => 0.0,
-            };
-            let input_offset = data.len();
-            data.extend_from_slice(&0.0_f32.to_le_bytes());
-            data.extend_from_slice(&duration.to_le_bytes());
-            let output_offset = data.len();
-            data.extend_from_slice(
-                &[0.0_f32, 0.0, 0.0]
-                    .into_iter()
-                    .flat_map(f32::to_le_bytes)
-                    .collect::<Vec<_>>(),
-            );
-            data.extend_from_slice(
-                &[1.0_f32, 0.0, 0.0]
-                    .into_iter()
-                    .flat_map(f32::to_le_bytes)
-                    .collect::<Vec<_>>(),
-            );
-
-            let input_view = buffer_views.len();
-            buffer_views.push(json!({
-                "buffer": 0,
-                "byteOffset": input_offset,
-                "byteLength": 8
-            }));
-            let output_view = buffer_views.len();
-            buffer_views.push(json!({
-                "buffer": 0,
-                "byteOffset": output_offset,
-                "byteLength": 24
-            }));
-            let input_accessor = accessors.len();
-            accessors.push(json!({
-                "bufferView": input_view,
-                "componentType": 5126,
-                "count": 2,
-                "type": "SCALAR",
-                "min": [0.0],
-                "max": [duration]
-            }));
-            let output_accessor = accessors.len();
-            accessors.push(json!({
-                "bufferView": output_view,
-                "componentType": 5126,
-                "count": 2,
-                "type": "VEC3"
-            }));
-            gltf_animations.push(json!({
-                "name": name,
-                "samplers": [{
-                    "input": input_accessor,
-                    "output": output_accessor,
-                    "interpolation": "LINEAR"
-                }],
-                "channels": [{
-                    "sampler": 0,
-                    "target": { "node": 0, "path": "translation" }
-                }]
-            }));
-        }
-
-        let document = json!({
-            "asset": { "version": "2.0" },
-            "scene": 0,
-            "scenes": [{ "nodes": [0] }],
-            "nodes": [{ "name": "root", "children": [1] }, { "name": "hand" }],
-            "buffers": [{ "byteLength": data.len() }],
-            "bufferViews": buffer_views,
-            "accessors": accessors,
-            "animations": gltf_animations
-        });
-        let bytes = serde_json::to_vec(&document).unwrap();
-        let gltf = gltf::Gltf::from_slice(&bytes).unwrap();
-        (gltf.document, vec![gltf::buffer::Data(data)])
-    }
-
-    #[test]
-    fn pose_sampling_wraps_repeating_frames_and_clamps_finished_frames() {
-        let first = FixedMat4::IDENTITY;
-        let mut second = FixedMat4::IDENTITY;
-        second.translate(FGVec3::lit("2", "0", "0"));
-        let mut terminal = FixedMat4::IDENTITY;
-        terminal.translate(FGVec3::lit("4", "0", "0"));
-        let baked = BakedFighterAnimations {
-            frame_rate: BAKED_ANIMATION_FPS,
-            bone_names: vec!["root".into()],
-            parents: vec![None],
-            root_bone_index: 0,
-            clips: vec![BakedAnimationClip {
-                frames: vec![vec![first], vec![second], vec![terminal]],
-                root_positions: vec![
-                    FGVec3::ZERO,
-                    FGVec3::lit("2", "0", "0"),
-                    FGVec3::lit("4", "0", "0"),
-                ],
-            }],
-            clip_indices: HashMap::from([(AnimKind::Wait, 0)]),
-        };
-        let repeating = crate::fighter::animation::FighterAnimationFrame {
-            kind: AnimKind::Wait,
-            frame: 3,
-            repeat: true,
-        };
-        let finished = crate::fighter::animation::FighterAnimationFrame {
-            kind: AnimKind::Wait,
-            frame: 4,
-            repeat: false,
-        };
-        assert_eq!(baked.sample_pose(&repeating), Some(&[second][..]));
-        assert_eq!(baked.sample_pose(&finished), Some(&[terminal][..]));
-    }
-
-    #[test]
-    fn frame_count_snaps_source_frame_rounding_error_to_the_bake_grid() {
-        assert_eq!(baked_frame_count(0.533333361, 60), 33);
-        assert_eq!(baked_frame_count(0.333333343, 60), 21);
-        assert_eq!(baked_frame_count(0.133333340, 60), 9);
-        assert_eq!(baked_frame_count(2.0, 60), 121);
-    }
-
-    #[test]
-    fn linear_source_channel_is_resampled_between_thirty_hz_keys() {
-        let channel = Channel {
-            node: 0,
-            property: gltf::animation::Property::Translation,
-            interpolation: gltf::animation::Interpolation::Linear,
-            times: vec![0.0, 1.0 / 30.0],
-            values: ChannelValues::Vec3(vec![[0.0, 0.0, 0.0], [2.0, 0.0, 0.0]]),
-        };
-        let ChannelValues::Vec3(values) = &channel.values else {
-            unreachable!()
-        };
-        assert_eq!(sample_vec3(&channel, values, 1.0 / 60.0), [1.0, 0.0, 0.0]);
-    }
-
-    #[test]
-    fn presentation_pose_interpolates_previous_and_current_local_transforms() {
-        let mut previous = FixedMat4::IDENTITY;
-        previous.translate(FGVec3::lit("2", "0", "0"));
-        let mut current = FixedMat4::IDENTITY;
-        current.translate(FGVec3::lit("6", "0", "0"));
-        let transform = runtime::interpolate_transform(previous, current, 0.25);
-        assert_eq!(
-            transform.translation,
-            bevy::prelude::Vec3::new(3.0, 0.0, 0.0)
-        );
-    }
-
-    #[test]
-    fn bone_matrix_component_keeps_names_aligned_with_the_current_pose() {
-        let first = FixedMat4::IDENTITY;
-        let mut second = FixedMat4::IDENTITY;
-        second.translate(FGVec3::lit("0", "3", "0"));
-        let mut matrices = FighterBoneMatrices::default();
-        matrices.set_pose(
-            AnimKind::Wait,
-            &["root".into(), "hand".into()],
-            &[None, Some(0)],
-            &[first, second],
-            FGi32::ONE,
-        );
-        assert_eq!(matrices.get_current("hand"), Some(second));
-        assert_eq!(
-            matrices.iter().collect::<Vec<_>>(),
-            vec![("root", first), ("hand", second)]
-        );
-    }
-
-    #[test]
-    fn local_pose_reconstructs_model_space_for_gameplay() {
-        let mut root = FixedMat4::IDENTITY;
-        root.translate(FGVec3::lit("10", "0", "0"));
-        let mut hand = FixedMat4::IDENTITY;
-        hand.translate(FGVec3::lit("0", "3", "0"));
-        let mut matrices = FighterBoneMatrices::default();
-        matrices.set_pose(
-            AnimKind::Wait,
-            &["root".into(), "hand".into()],
-            &[None, Some(0)],
-            &[root, hand],
-            FGi32::ONE,
-        );
-        assert_eq!(matrices.local(1), Some(hand));
-        assert_eq!(
-            matrices.get_current("hand").unwrap().get_translation(),
-            FGVec3::lit("10", "3", "0")
-        );
-        assert_eq!(
-            matrices
-                .local(1)
-                .unwrap()
-                .to_mat4()
-                .transform_point3(bevy::prelude::Vec3::ZERO),
-            bevy::prelude::Vec3::new(0.0, 3.0, 0.0)
-        );
-    }
-
-    #[test]
-    fn repeated_pose_updates_reuse_scratch_and_output_buffers() {
-        let mut matrices = FighterBoneMatrices::default();
-        let names = ["root".into(), "hand".into()];
-        let parents = [None, Some(0)];
-        let pose = [FixedMat4::IDENTITY, FixedMat4::IDENTITY];
-
-        matrices.set_pose(AnimKind::Wait, &names, &parents, &pose, FGi32::ONE);
-        let capacities = matrices.buffer_capacities();
-        matrices.set_pose(AnimKind::Wait, &names, &parents, &pose, FGi32::ONE);
-
-        assert_eq!(capacities, matrices.buffer_capacities());
-    }
-
-    #[test]
-    fn same_frame_resample_preserves_previous_gameplay_pose() {
-        let names = ["root".into()];
-        let parents = [None];
-        let mut pose_a = FixedMat4::IDENTITY;
-        pose_a.translate(FGVec3::lit("1", "0", "0"));
-        let mut pose_b = FixedMat4::IDENTITY;
-        pose_b.translate(FGVec3::lit("2", "0", "0"));
-        let mut snapped_pose = FixedMat4::IDENTITY;
-        snapped_pose.translate(FGVec3::lit("3", "0", "0"));
-        let mut matrices = FighterBoneMatrices::default();
-
-        matrices.set_pose(AnimKind::Wait, &names, &parents, &[pose_a], FGi32::ONE);
-        matrices.set_pose(AnimKind::Wait, &names, &parents, &[pose_b], FGi32::ONE);
-        matrices.resample_pose(
-            AnimKind::Landing,
-            &names,
-            &parents,
-            &[snapped_pose],
-            FGi32::ONE,
-        );
-
-        assert_eq!(matrices.get_index(0), Some((pose_a, snapped_pose)));
-    }
-
-    #[test]
-    fn model_scale_affects_gameplay_bones_without_changing_visual_locals() {
-        let mut root = FixedMat4::IDENTITY;
-        root.translate(FGVec3::lit("1", "0", "0"));
-        let mut hand = FixedMat4::IDENTITY;
-        hand.translate(FGVec3::lit("0", "2", "0"));
-        let mut matrices = FighterBoneMatrices::default();
-        matrices.set_pose(
-            AnimKind::Wait,
-            &["root".into(), "hand".into()],
-            &[None, Some(0)],
-            &[root, hand],
-            FGi32::lit("10"),
-        );
-        assert_eq!(matrices.local(1), Some(hand));
-        assert_eq!(
-            matrices.get_current("hand").unwrap().get_translation(),
-            FGVec3::lit("10", "20", "0")
-        );
-    }
-
-    #[test]
-    fn root_motion_delta_is_scaled_and_zero_on_initial_sample() {
-        let names = ["root".into()];
-        let parents = [None];
-        let mut first = FixedMat4::IDENTITY;
-        first.translate(FGVec3::lit("1", "0", "0"));
-        let mut second = FixedMat4::IDENTITY;
-        second.translate(FGVec3::lit("3", "0", "0"));
-        let mut matrices = FighterBoneMatrices::default();
-        let frame = crate::fighter::animation::FighterAnimationFrame::new(AnimKind::Wait, false);
-
-        matrices.set_pose_with_frame(
-            frame,
-            Some(0),
-            Some(FGVec3::lit("2", "0", "0")),
-            FGVec3::ZERO,
-            None,
-            AnimKind::Wait,
-            &names,
-            &parents,
-            &[first],
-            FGi32::lit("2"),
-        );
-        assert_eq!(matrices.root_motion_delta(), FGVec3::ZERO);
-        assert_eq!(
-            matrices.root_motion_position(),
-            Some(FGVec3::lit("2", "0", "0"))
-        );
-
-        matrices.set_pose_with_frame(
-            crate::fighter::animation::FighterAnimationFrame { frame: 1, ..frame },
-            Some(0),
-            Some(FGVec3::lit("6", "0", "0")),
-            FGVec3::ZERO,
-            None,
-            AnimKind::Wait,
-            &names,
-            &parents,
-            &[second],
-            FGi32::lit("2"),
-        );
-        assert_eq!(matrices.root_motion_delta(), FGVec3::lit("4", "0", "0"));
-    }
-
-    #[test]
-    fn root_motion_translation_is_removed_from_published_pose() {
-        let names = ["root".into(), "hand".into()];
-        let parents = [None, Some(0)];
-        let mut root = FixedMat4::IDENTITY;
-        root.translate(FGVec3::lit("3", "4", "5"));
-        let mut hand = FixedMat4::IDENTITY;
-        hand.translate(FGVec3::lit("1", "2", "0"));
-        let mut matrices = FighterBoneMatrices::default();
-        let frame = crate::fighter::animation::FighterAnimationFrame::new(AnimKind::Wait, false);
-
-        matrices.set_pose_with_frame(
-            frame,
-            Some(0),
-            Some(FGVec3::lit("3", "4", "5")),
-            FGVec3::ZERO,
-            None,
-            AnimKind::Wait,
-            &names,
-            &parents,
-            &[root, hand],
-            FGi32::ONE,
-        );
-
-        assert_eq!(matrices.root_motion_delta(), FGVec3::ZERO);
-        assert_eq!(matrices.local(0).unwrap().get_translation(), FGVec3::ZERO);
-        assert_eq!(matrices.get_current("root").unwrap().get_translation(), FGVec3::ZERO);
-        assert_eq!(
-            matrices.get_current("hand").unwrap().get_translation(),
-            FGVec3::lit("1", "2", "0")
-        );
-    }
-
-    #[test]
-    fn every_animation_extracts_root_translation_and_retains_its_position() {
-        let names = ["root".into(), "hand".into()];
-        let parents = [None, Some(0)];
-        let mut root = FixedMat4::IDENTITY;
-        root.translate(FGVec3::lit("3", "4", "5"));
-        let mut hand = FixedMat4::IDENTITY;
-        hand.translate(FGVec3::lit("1", "2", "0"));
-        let mut matrices = FighterBoneMatrices::default();
-        let frame = crate::fighter::animation::FighterAnimationFrame::new(
-            AnimKind::LedgeWait,
-            true,
-        );
-
-        matrices.set_pose_with_frame(
-            frame,
-            Some(0),
-            Some(FGVec3::lit("3", "4", "5")),
-            FGVec3::ZERO,
-            None,
-            AnimKind::LedgeWait,
-            &names,
-            &parents,
-            &[root, hand],
-            FGi32::ONE,
-        );
-
-        assert_eq!(matrices.root_motion_delta(), FGVec3::ZERO);
-        assert_eq!(
-            matrices.root_motion_position(),
-            Some(FGVec3::lit("3", "4", "5"))
-        );
-        assert_eq!(matrices.local(0).unwrap().get_translation(), FGVec3::ZERO);
-        assert_eq!(
-            matrices.get_current("root").unwrap().get_translation(),
-            FGVec3::ZERO
-        );
-        assert_eq!(
-            matrices.get_current("hand").unwrap().get_translation(),
-            FGVec3::lit("1", "2", "0")
-        );
-
-        root.translate(FGVec3::lit("6", "4", "5"));
-        matrices.set_pose_with_frame(
-            crate::fighter::animation::FighterAnimationFrame { frame: 1, ..frame },
-            Some(0),
-            Some(FGVec3::lit("6", "4", "5")),
-            FGVec3::ZERO,
-            None,
-            AnimKind::LedgeWait,
-            &names,
-            &parents,
-            &[root, hand],
-            FGi32::ONE,
-        );
-        assert_eq!(matrices.root_motion_delta(), FGVec3::lit("3", "0", "0"));
-        assert_eq!(
-            matrices.get_current("root").unwrap().get_translation(),
-            FGVec3::ZERO
-        );
-    }
-
-    #[test]
-    fn repeating_root_motion_preserves_cycle_displacement_at_every_wrap() {
-        let names = ["root".into()];
-        let parents = [None];
-        let pose = |x| FixedMat4::IDENTITY.with_translation(FGVec3::lit(x, "0", "0"));
-        let mut matrices = FighterBoneMatrices::default();
-        let frame = |frame| crate::fighter::animation::FighterAnimationFrame {
-            kind: AnimKind::Wait,
-            frame,
-            repeat: true,
-        };
-
-        for (frame_number, x, expected_delta) in [
-            (0, "0", FGVec3::ZERO),
-            (1, "1", FGVec3::lit("1", "0", "0")),
-            (2, "0", FGVec3::lit("1", "0", "0")),
-            (3, "1", FGVec3::lit("1", "0", "0")),
-            (4, "0", FGVec3::lit("1", "0", "0")),
-        ] {
-            matrices.set_pose_with_frame(
-                frame(frame_number),
-                Some(0),
-                Some(FGVec3::lit(x, "0", "0")),
-                FGVec3::lit("2", "0", "0"),
-                Some(2),
-                AnimKind::Wait,
-                &names,
-                &parents,
-                &[pose(x)],
-                FGi32::ONE,
-            );
-            assert_eq!(matrices.root_motion_delta(), expected_delta);
-        }
-    }
-
-    #[test]
-    fn fixed_matrix_transforms_points() {
-        let transform = FixedMat4 {
-            cols: [
-                [FGi32::lit("2"), FGi32::ZERO, FGi32::ZERO, FGi32::ZERO],
-                [FGi32::ZERO, FGi32::lit("3"), FGi32::ZERO, FGi32::ZERO],
-                [FGi32::ZERO, FGi32::ZERO, FGi32::lit("4"), FGi32::ZERO],
-                [
-                    FGi32::lit("10"),
-                    FGi32::lit("-5"),
-                    FGi32::lit("1.5"),
-                    FGi32::ONE,
-                ],
-            ],
-        };
-        assert_eq!(
-            transform.transform_point(FGVec3::lit("1.25", "-2", "0.5")),
-            FGVec3::lit("12.5", "-11", "3.5")
-        );
-    }
-
-    #[test]
-    fn fixed_matrix_rotates_points_around_y() {
-        let transform = FixedMat4 {
-            cols: [
-                [FGi32::ONE, FGi32::ZERO, FGi32::ZERO, FGi32::ZERO],
-                [FGi32::ZERO, FGi32::ONE, FGi32::ZERO, FGi32::ZERO],
-                [FGi32::ZERO, FGi32::ZERO, FGi32::ONE, FGi32::ZERO],
-                [
-                    FGi32::lit("10"),
-                    FGi32::lit("2"),
-                    FGi32::lit("-3"),
-                    FGi32::ONE,
-                ],
-            ],
-        };
-        assert_eq!(
-            transform
-                .rotate_y(5)
-                .transform_point(FGVec3::lit("1", "0", "0")),
-            FGVec3::lit("10", "2", "-4")
-        );
-    }
-
-    #[test]
-    fn fixed_matrix_builders_set_euler_rotation_and_translation() {
-        let transform = FixedMat4::IDENTITY
-            .with_rotation(FGVec3::lit("0", "0", "1.5707963267948966"))
-            .with_translation(FGVec3::lit("10", "2", "-3"));
-        assert_eq!(
-            transform.transform_point(FGVec3::lit("1", "0", "0")),
-            FGVec3::lit("10", "3", "-3")
-        );
-        assert_eq!(transform.get_translation(), FGVec3::lit("10", "2", "-3"));
-    }
-
-    #[test]
-    fn fixed_matrix_rotation_builder_preserves_translation() {
-        let transform = FixedMat4::IDENTITY
-            .with_translation(FGVec3::lit("4", "5", "6"))
-            .with_rotation(FGVec3::lit("0", "0", "1.5707963267948966"));
-        assert_eq!(transform.get_translation(), FGVec3::lit("4", "5", "6"));
-    }
-}

src/fighter/baked_animation/runtime.rs

@@ -1,595 +0,0 @@
-use std::collections::HashMap;
-
-use bevy::prelude::*;
-use bevy_ggrs::Rollback;
-use serde::{Deserialize, Serialize};
-
-use super::BAKED_ANIMATION_FPS;
-
-use crate::{
-    fighter::{
-        Fighter,
-        animation::{AnimKind, FighterAnimationFrame},
-        manifest::FighterManifest,
-        visual::FighterAnimations,
-    },
-    math::fixed_transform::FixedMat4,
-    math::int::FGi32,
-    math::vec3::FGVec3,
-};
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct BakedAnimationClip {
-    pub frames: Vec<Vec<FixedMat4>>,
-    /// Unscaled model-space position of the configured root-motion bone at
-    /// each baked frame.
-    pub root_positions: Vec<FGVec3>,
-}
-
-#[derive(Asset, bevy::reflect::TypePath, Clone, Debug, Serialize, Deserialize)]
-#[type_path = "shinespark::fighter::baked_animation"]
-pub struct BakedFighterAnimations {
-    pub frame_rate: u32,
-    pub bone_names: Vec<String>,
-    pub parents: Vec<Option<usize>>,
-    pub(super) root_bone_index: usize,
-    pub(super) clips: Vec<BakedAnimationClip>,
-    pub(super) clip_indices: HashMap<AnimKind, usize>,
-}
-
-impl BakedFighterAnimations {
-    fn sample_index(&self, frame: &FighterAnimationFrame) -> Option<usize> {
-        let frames = &self.clip(frame.kind)?.frames;
-        let frame_index = if frame.repeat {
-            let loop_frame_count = frames.len().saturating_sub(1).max(1) as u32;
-            frame.frame % loop_frame_count
-        } else {
-            frame.frame
-        };
-        Some((frame_index as usize).min(frames.len().saturating_sub(1)))
-    }
-    pub fn contains_bone(&self, bone: &str) -> bool {
-        self.bone_names.iter().any(|name| name == bone)
-    }
-    pub fn has_unique_bone_names(&self) -> bool {
-        let mut names = std::collections::HashSet::with_capacity(self.bone_names.len());
-        self.bone_names.iter().all(|name| names.insert(name))
-    }
-    pub fn sample_pose(&self, frame: &FighterAnimationFrame) -> Option<&[FixedMat4]> {
-        let clip = self.clip(frame.kind)?;
-        clip.frames.get(self.sample_index(frame)?).map(Vec::as_slice)
-    }
-    pub fn sample_root_position(
-        &self,
-        frame: &FighterAnimationFrame,
-        model_scale: FGi32,
-    ) -> Option<FGVec3> {
-        let clip = self.clip(frame.kind)?;
-        let position = *clip.root_positions.get(self.sample_index(frame)?)?;
-        Some(position * model_scale)
-    }
-    pub fn initial_root_position(&self, kind: AnimKind, model_scale: FGi32) -> Option<FGVec3> {
-        self.sample_root_position(&FighterAnimationFrame::new(kind, false), model_scale)
-    }
-    pub fn frame_count(&self, kind: AnimKind) -> Option<u32> {
-        self.clip(kind).map(|clip| clip.frames.len() as u32)
-    }
-    pub fn root_motion_cycle_delta(
-        &self,
-        kind: AnimKind,
-        model_scale: FGi32,
-    ) -> Option<FGVec3> {
-        let clip = self.clip(kind)?;
-        Some((*clip.root_positions.last()? - *clip.root_positions.first()?) * model_scale)
-    }
-    /// Samples one bone in model space without depending on the runtime's
-    /// previous-frame buffers. Tooling uses this when the user scrubs between
-    /// unrelated frames.
-    pub fn sample_bone_model_transform(
-        &self,
-        frame: &FighterAnimationFrame,
-        bone: &str,
-        model_scale: FGi32,
-    ) -> Option<FixedMat4> {
-        let local = self.sample_pose(frame)?;
-        let index = self.bone_names.iter().position(|name| name == bone)?;
-        let mut model = vec![None; local.len()];
-        resolve_model_transform(index, &self.parents, local, &mut model).ok()?;
-        let scale = FixedMat4 {
-            cols: [
-                [model_scale, FGi32::ZERO, FGi32::ZERO, FGi32::ZERO],
-                [FGi32::ZERO, model_scale, FGi32::ZERO, FGi32::ZERO],
-                [FGi32::ZERO, FGi32::ZERO, model_scale, FGi32::ZERO],
-                [FGi32::ZERO, FGi32::ZERO, FGi32::ZERO, FGi32::ONE],
-            ],
-        };
-        Some(scale.mul(model[index]?))
-    }
-    pub(super) fn clip(&self, kind: AnimKind) -> Option<&BakedAnimationClip> {
-        self.clip_indices
-            .get(&kind)
-            .and_then(|index| self.clips.get(*index))
-    }
-    pub fn get_animation_duration(&self, kind: AnimKind) -> Option<usize> {
-        self.clip(kind).map(|clip| clip.frames.len())
-    }
-}
-
-#[derive(Component, Clone, Debug, Default, Hash)]
-#[require(Rollback)]
-pub struct FighterBoneMatrices {
-    bone_names: Vec<String>,
-    parents: Vec<Option<usize>>,
-    matrices: Vec<FixedMat4>,
-    previous_frame_matrices: Vec<FixedMat4>,
-    local_matrices: Vec<FixedMat4>,
-    previous_local_matrices: Vec<FixedMat4>,
-    model_matrices: Vec<Option<FixedMat4>>,
-    presentation_kind: Option<AnimKind>,
-    previous_animation_frame: Option<FighterAnimationFrame>,
-    root_motion_position: Option<FGVec3>,
-    /// The raw, scaled model-space root translation used as the baseline for
-    /// root-motion extraction.  This is kept separately because the published
-    /// pose has the root translation removed.
-    previous_root_motion_translation: Option<FGVec3>,
-    root_motion_delta: crate::math::vec3::FGVec3,
-}
-
-#[derive(Component, Clone, Debug, Default)]
-pub struct FighterBoneIndexMap(pub HashMap<String, usize>);
-
-impl FighterBoneMatrices {
-    /// Samples a baked pose for a preview or other non-gameplay caller.
-    pub fn sample_baked_pose(
-        &mut self,
-        baked: &BakedFighterAnimations,
-        frame: &FighterAnimationFrame,
-        model_scale: FGi32,
-    ) -> bool {
-        let Some(pose) = baked.sample_pose(frame) else {
-            return false;
-        };
-        self.set_pose_with_frame(
-            *frame,
-            Some(baked.root_bone_index),
-            baked.sample_root_position(frame, model_scale),
-            FGVec3::ZERO,
-            None,
-            frame.kind,
-            &baked.bone_names,
-            &baked.parents,
-            pose,
-            model_scale,
-        );
-        true
-    }
-
-    #[cfg(test)]
-    pub(super) fn buffer_capacities(&self) -> [usize; 5] {
-        [
-            self.matrices.capacity(),
-            self.local_matrices.capacity(),
-            self.previous_frame_matrices.capacity(),
-            self.previous_local_matrices.capacity(),
-            self.model_matrices.capacity(),
-        ]
-    }
-
-    pub fn get_by_idx(&self, index: usize) -> Option<(FixedMat4, FixedMat4)> {
-        Some((
-            *self.previous_frame_matrices.get(index)?,
-            *self.matrices.get(index)?,
-        ))
-    }
-    pub fn get(&self, bone: &str) -> Option<(FixedMat4, FixedMat4)> {
-        let index = self.bone_names.iter().position(|name| name == bone)?;
-        Some((
-            *self.previous_frame_matrices.get(index)?,
-            *self.matrices.get(index)?,
-        ))
-    }
-    pub fn get_current(&self, bone: &str) -> Option<FixedMat4> {
-        let index = self.bone_names.iter().position(|name| name == bone)?;
-        self.matrices.get(index).copied()
-    }
-    pub fn get_index(&self, index: usize) -> Option<(FixedMat4, FixedMat4)> {
-        Some((
-            *self.previous_frame_matrices.get(index)?,
-            *self.matrices.get(index)?,
-        ))
-    }
-    pub fn get_current_index(&self, index: usize) -> Option<FixedMat4> {
-        self.matrices.get(index).copied()
-    }
-    /// Translation of the configured root-motion bone since the previous
-    /// simulation animation frame, in scaled model-space units.
-    pub fn root_motion_delta(&self) -> FGVec3 {
-        self.root_motion_delta
-    }
-    /// Current raw, scaled model-space position of the configured root-motion
-    /// bone. The published skeleton has this translation removed.
-    pub fn root_motion_position(&self) -> Option<FGVec3> {
-        self.root_motion_position
-    }
-    pub fn iter(&self) -> impl Iterator<Item = (&str, FixedMat4)> {
-        self.bone_names
-            .iter()
-            .map(String::as_str)
-            .zip(self.matrices.iter().copied())
-    }
-    pub fn local(&self, index: usize) -> Option<FixedMat4> {
-        self.local_matrices.get(index).copied()
-    }
-    pub(super) fn presentation_local(
-        &self,
-        index: usize,
-        overstep_fraction: f32,
-    ) -> Option<Transform> {
-        let current = self.local_matrices.get(index).copied()?;
-        let previous = self
-            .previous_local_matrices
-            .get(index)
-            .copied()
-            .unwrap_or(current);
-        Some(interpolate_transform(previous, current, overstep_fraction))
-    }
-    #[cfg(test)]
-    pub(super) fn set_pose(
-        &mut self,
-        kind: AnimKind,
-        bone_names: &[String],
-        parents: &[Option<usize>],
-        local: &[FixedMat4],
-        model_scale: FGi32,
-    ) {
-        self.set_pose_with_frame(
-            FighterAnimationFrame::new(kind, false),
-            None,
-            None,
-            FGVec3::ZERO,
-            None,
-            kind,
-            bone_names,
-            parents,
-            local,
-            model_scale,
-        );
-    }
-    pub(super) fn set_pose_with_frame(
-        &mut self,
-        animation_frame: FighterAnimationFrame,
-        root_bone_index: Option<usize>,
-        root_motion_position: Option<FGVec3>,
-        root_motion_cycle_delta: FGVec3,
-        root_motion_loop_frame_count: Option<u32>,
-        kind: AnimKind,
-        bone_names: &[String],
-        parents: &[Option<usize>],
-        local: &[FixedMat4],
-        model_scale: FGi32,
-    ) {
-        self.sample_pose(
-            animation_frame,
-            root_bone_index,
-            root_motion_position,
-            root_motion_cycle_delta,
-            root_motion_loop_frame_count,
-            kind,
-            bone_names,
-            parents,
-            local,
-            model_scale,
-            true,
-        );
-    }
-    #[cfg(test)]
-    pub(super) fn resample_pose(
-        &mut self,
-        kind: AnimKind,
-        bone_names: &[String],
-        parents: &[Option<usize>],
-        local: &[FixedMat4],
-        model_scale: FGi32,
-    ) {
-        self.resample_pose_with_frame(
-            FighterAnimationFrame::new(kind, false),
-            None,
-            None,
-            FGVec3::ZERO,
-            None,
-            kind,
-            bone_names,
-            parents,
-            local,
-            model_scale,
-        );
-    }
-    pub(super) fn resample_pose_with_frame(
-        &mut self,
-        animation_frame: FighterAnimationFrame,
-        root_bone_index: Option<usize>,
-        root_motion_position: Option<FGVec3>,
-        _root_motion_cycle_delta: FGVec3,
-        _root_motion_loop_frame_count: Option<u32>,
-        kind: AnimKind,
-        bone_names: &[String],
-        parents: &[Option<usize>],
-        local: &[FixedMat4],
-        model_scale: FGi32,
-    ) {
-        self.sample_pose(
-            animation_frame,
-            root_bone_index,
-            root_motion_position,
-            FGVec3::ZERO,
-            None,
-            kind,
-            bone_names,
-            parents,
-            local,
-            model_scale,
-            false,
-        );
-    }
-    fn sample_pose(
-        &mut self,
-        animation_frame: FighterAnimationFrame,
-        root_index: Option<usize>,
-        raw_root_motion_translation: Option<FGVec3>,
-        root_motion_cycle_delta: FGVec3,
-        root_motion_loop_frame_count: Option<u32>,
-        kind: AnimKind,
-        bone_names: &[String],
-        parents: &[Option<usize>],
-        local: &[FixedMat4],
-        model_scale: FGi32,
-        advance_history: bool,
-    ) {
-        assert_eq!(
-            bone_names.len(),
-            local.len(),
-            "baked animation pose does not match its bone names"
-        );
-        assert_eq!(
-            bone_names.len(),
-            parents.len(),
-            "baked bone parents do not match names"
-        );
-        let animation_changed = self.presentation_kind != Some(kind);
-        if self.bone_names.is_empty() {
-            self.bone_names.extend_from_slice(bone_names);
-            self.parents.extend_from_slice(parents);
-        } else {
-            assert_eq!(self.bone_names, bone_names, "baked bone names changed");
-            assert_eq!(self.parents, parents, "baked bone parents changed");
-        }
-        self.matrices.reserve(local.len());
-        self.previous_frame_matrices.reserve(local.len());
-        self.local_matrices.reserve(local.len());
-        self.previous_local_matrices.reserve(local.len());
-        self.model_matrices.reserve(local.len());
-        if advance_history {
-            std::mem::swap(&mut self.matrices, &mut self.previous_frame_matrices);
-            std::mem::swap(&mut self.local_matrices, &mut self.previous_local_matrices);
-        }
-        self.local_matrices.clear();
-        self.local_matrices.extend_from_slice(local);
-
-        let model_scale = FixedMat4 {
-            cols: [
-                [model_scale, FGi32::ZERO, FGi32::ZERO, FGi32::ZERO],
-                [FGi32::ZERO, model_scale, FGi32::ZERO, FGi32::ZERO],
-                [FGi32::ZERO, FGi32::ZERO, model_scale, FGi32::ZERO],
-                [FGi32::ZERO, FGi32::ZERO, FGi32::ZERO, FGi32::ONE],
-            ],
-        };
-        // Gameplay always owns root displacement. Keep rotation and scale in
-        // the pose while removing the configured root bone's translation.
-        if let Some(root_index) = root_index {
-            self.local_matrices[root_index].translate(FGVec3::ZERO);
-        }
-        self.model_matrices.resize(local.len(), None);
-        self.model_matrices.fill(None);
-        for index in 0..local.len() {
-            resolve_model_transform(index, parents, &self.local_matrices, &mut self.model_matrices)
-                .expect("baked bone hierarchy should be valid");
-        }
-        self.matrices.clear();
-        self.matrices.extend(
-            self.model_matrices.iter().map(|matrix| {
-                model_scale.mul(matrix.expect("baked bone hierarchy should be valid"))
-            }),
-        );
-        self.root_motion_delta = if advance_history
-            && !animation_changed
-            && self.previous_animation_frame.is_some()
-            && let (Some(current), Some(previous)) = (
-                raw_root_motion_translation,
-                self.previous_root_motion_translation,
-            )
-        {
-            let mut delta = current - previous;
-            if animation_frame.repeat
-                && self.previous_animation_frame.is_some_and(|previous| {
-                    previous.kind == animation_frame.kind
-                        && previous.frame.saturating_add(1) == animation_frame.frame
-                })
-                && root_motion_loop_frame_count.is_some_and(|loop_frame_count| {
-                    loop_frame_count > 0 && animation_frame.frame % loop_frame_count == 0
-                })
-            {
-                delta = delta + root_motion_cycle_delta;
-            }
-            delta
-        } else {
-            FGVec3::ZERO
-        };
-        self.root_motion_position = raw_root_motion_translation;
-        self.previous_root_motion_translation = raw_root_motion_translation;
-        if advance_history {
-            self.previous_animation_frame = Some(animation_frame);
-        }
-        // A state transition is a discontinuity, not an animation frame to
-        // interpolate from the previous clip.  Keep the presentation pose at
-        // the new clip's first/current frame immediately.
-        if animation_changed {
-            self.previous_local_matrices
-                .clone_from(&self.local_matrices);
-        }
-        self.presentation_kind = Some(kind);
-    }
-}
-
-pub fn update_fighter_bone_matrices(
-    mut fighters: Query<(
-        &FighterAnimationFrame,
-        &FighterAnimations,
-        &Fighter,
-        &mut FighterBoneMatrices,
-        &mut FighterBoneIndexMap,
-    )>,
-    baked_assets: Res<Assets<BakedFighterAnimations>>,
-    manifests: Res<Assets<FighterManifest>>,
-) {
-    for (frame, animations, fighter, mut matrices, mut bone_indices) in &mut fighters {
-        sample_fighter_bone_matrices(
-            frame,
-            animations,
-            fighter,
-            &mut matrices,
-            &mut bone_indices,
-            &baked_assets,
-            &manifests,
-            true,
-        );
-    }
-}
-
-/// Resamples the current pose after collision-driven state transitions without
-/// advancing the previous-frame pose used for swept gameplay volumes.
-pub fn resample_fighter_bone_matrices(
-    mut fighters: Query<(
-        &FighterAnimationFrame,
-        &FighterAnimations,
-        &Fighter,
-        &mut FighterBoneMatrices,
-        &mut FighterBoneIndexMap,
-    )>,
-    baked_assets: Res<Assets<BakedFighterAnimations>>,
-    manifests: Res<Assets<FighterManifest>>,
-) {
-    for (frame, animations, fighter, mut matrices, mut bone_indices) in &mut fighters {
-        sample_fighter_bone_matrices(
-            frame,
-            animations,
-            fighter,
-            &mut matrices,
-            &mut bone_indices,
-            &baked_assets,
-            &manifests,
-            false,
-        );
-    }
-}
-
-fn sample_fighter_bone_matrices(
-    frame: &FighterAnimationFrame,
-    animations: &FighterAnimations,
-    fighter: &Fighter,
-    matrices: &mut FighterBoneMatrices,
-    bone_indices: &mut FighterBoneIndexMap,
-    baked_assets: &Assets<BakedFighterAnimations>,
-    manifests: &Assets<FighterManifest>,
-    advance_history: bool,
-) {
-    let baked = baked_assets
-        .get(&animations.baked)
-        .expect("fighter baked animation asset should be loaded before the match starts");
-    assert_eq!(
-        baked.frame_rate, BAKED_ANIMATION_FPS,
-        "fighter baked animation rate does not match the simulation rate"
-    );
-    let pose = baked
-        .sample_pose(frame)
-        .expect("fighter animation frame should select a baked pose");
-    let manifest = manifests
-        .get(&fighter.manifest)
-        .expect("fighter manifest should be loaded before the match starts");
-    let root_motion_position = baked.sample_root_position(frame, manifest.model_scale);
-    let root_motion_cycle_delta = baked
-        .root_motion_cycle_delta(frame.kind, manifest.model_scale)
-        .unwrap_or(FGVec3::ZERO);
-    let root_motion_loop_frame_count = baked
-        .frame_count(frame.kind)
-        .map(|count| count.saturating_sub(1).max(1));
-    if advance_history {
-        matrices.set_pose_with_frame(
-            *frame,
-            Some(baked.root_bone_index),
-            root_motion_position,
-            root_motion_cycle_delta,
-            root_motion_loop_frame_count,
-            frame.kind,
-            &baked.bone_names,
-            &baked.parents,
-            pose,
-            manifest.model_scale,
-        );
-    } else {
-        matrices.resample_pose_with_frame(
-            *frame,
-            Some(baked.root_bone_index),
-            root_motion_position,
-            FGVec3::ZERO,
-            None,
-            frame.kind,
-            &baked.bone_names,
-            &baked.parents,
-            pose,
-            manifest.model_scale,
-        );
-    }
-    if bone_indices.0.is_empty() {
-        bone_indices.0.extend(
-            baked
-                .bone_names
-                .iter()
-                .enumerate()
-                .map(|(index, name)| (name.clone(), index)),
-        );
-    }
-}
-
-pub(super) fn resolve_model_transform(
-    index: usize,
-    parents: &[Option<usize>],
-    local: &[FixedMat4],
-    model: &mut [Option<FixedMat4>],
-) -> std::io::Result<FixedMat4> {
-    if let Some(value) = model[index] {
-        return Ok(value);
-    }
-    let value = match parents[index] {
-        Some(parent) => resolve_model_transform(parent, parents, local, model)?.mul(local[index]),
-        None => local[index],
-    };
-    model[index] = Some(value);
-    Ok(value)
-}
-
-pub(super) fn interpolate_transform(
-    previous: FixedMat4,
-    current: FixedMat4,
-    factor: f32,
-) -> Transform {
-    let (previous_scale, previous_rotation, previous_translation) =
-        previous.to_mat4().to_scale_rotation_translation();
-    let (current_scale, current_rotation, current_translation) =
-        current.to_mat4().to_scale_rotation_translation();
-    let factor = factor.clamp(0.0, 1.0);
-    Transform {
-        translation: previous_translation.lerp(current_translation, factor),
-        rotation: previous_rotation.slerp(current_rotation, factor),
-        scale: previous_scale.lerp(current_scale, factor),
-    }
-}

src/fighter/baked_animation/visual_binding.rs

@@ -1,110 +0,0 @@
-use bevy::prelude::*;
-use bevy::world_serialization::{WorldInstanceReady, WorldInstanceSpawner};
-use bevy_ggrs::GgrsFrameTiming;
-use std::collections::{HashMap, HashSet};
-
-use super::{BakedFighterAnimations, FighterBoneMatrices};
-use crate::fighter::visual::FighterAnimations;
-
-#[derive(Component)]
-pub(super) struct BakedFighterBone {
-    fighter: Entity,
-    index: usize,
-}
-
-pub(super) fn bind_fighter_visual_bones(
-    ready: On<WorldInstanceReady>,
-    mut commands: Commands,
-    spawner: Res<WorldInstanceSpawner>,
-    fighters: Query<&FighterAnimations>,
-    baked_assets: Res<Assets<BakedFighterAnimations>>,
-    nodes: Query<(&Name, Option<&ChildOf>)>,
-    animation_players: Query<(), With<AnimationPlayer>>,
-) {
-    let fighter = ready.entity;
-    let Ok(animations) = fighters.get(fighter) else {
-        return;
-    };
-    let baked = baked_assets
-        .get(&animations.baked)
-        .expect("fighter baked animation asset should be loaded before its visual scene");
-    let entities = spawner
-        .iter_instance_entities(ready.instance_id)
-        .collect::<HashSet<_>>();
-    for &entity in &entities {
-        if animation_players.contains(entity) {
-            commands.entity(entity).remove::<AnimationPlayer>();
-        }
-    }
-    let mut indices = HashMap::with_capacity(baked.bone_names.len());
-    for (index, name) in baked.bone_names.iter().enumerate() {
-        let key = (baked.parents[index], name.as_str());
-        assert!(
-            indices.insert(key, index).is_none(),
-            "fighter GLTF has duplicate node names under the same parent"
-        );
-    }
-    let mut assigned = HashMap::new();
-    let mut remaining = entities.iter().copied().collect::<Vec<_>>();
-    while !remaining.is_empty() {
-        let mut next = Vec::new();
-        let mut progress = false;
-        for entity in remaining {
-            let Ok((name, parent)) = nodes.get(entity) else {
-                continue;
-            };
-            let parent = parent.map(ChildOf::parent);
-            let parent_index = match parent {
-                Some(parent) if entities.contains(&parent) => {
-                    if let Some(index) = assigned.get(&parent) {
-                        Some(*index)
-                    } else if nodes.get(parent).ok().is_some_and(|(name, _)| {
-                        baked.bone_names.iter().any(|bone| bone == name.as_str())
-                    }) {
-                        next.push(entity);
-                        continue;
-                    } else {
-                        None
-                    }
-                }
-                _ => None,
-            };
-            if let Some(&index) = indices.get(&(parent_index, name.as_str())) {
-                assigned.insert(entity, index);
-                progress = true;
-            }
-        }
-        if !progress {
-            break;
-        }
-        remaining = next;
-    }
-    if assigned.len() != baked.bone_names.len() {
-        warn!(fighter = ?fighter, bound = assigned.len(), expected = baked.bone_names.len(), "could not bind every baked fighter node to its visual scene");
-    }
-    for (entity, index) in assigned {
-        commands
-            .entity(entity)
-            .insert(BakedFighterBone { fighter, index });
-    }
-}
-
-pub(super) fn apply_baked_fighter_visual_pose(
-    mut nodes: Query<(&mut Transform, &BakedFighterBone)>,
-    fighters: Query<&FighterBoneMatrices>,
-    timing: Option<Res<GgrsFrameTiming>>,
-) {
-    let overstep_fraction = timing
-        .as_deref()
-        .map(GgrsFrameTiming::overstep_fraction)
-        .unwrap_or(0.0);
-    for (mut transform, bone) in &mut nodes {
-        let Ok(matrices) = fighters.get(bone.fighter) else {
-            continue;
-        };
-        let Some(local) = matrices.presentation_local(bone.index, overstep_fraction) else {
-            continue;
-        };
-        *transform = local;
-    }
-}

src/fighter/blast_zones.rs

@@ -1,36 +0,0 @@
-//! Various interactions with the blast zones
-
-use bevy::prelude::*;
-
-use crate::{fighter::{FighterPendingRespawn, FighterTranslation, state::FighterState}, match_loading::MatchConfig, stage::manifest::{StageManifest, StageManifestRegistry}};
-
-pub fn apply_blast_zones(
-    stage_registry: Res<StageManifestRegistry>,
-    stage_manifests: Res<Assets<StageManifest>>,
-    match_config: Res<MatchConfig>,
-    fighters: Query<(&FighterTranslation, &mut FighterPendingRespawn, &FighterState)>
-) {
-    let Some(stage_manifest_handle) = stage_registry.get(match_config.stage) else {
-        return;
-    };
-
-    let Some(stage_manifest) = stage_manifests.get(&stage_manifest_handle) else {
-        return;
-    };
-
-    for (translation, mut pending_respawn, state) in fighters {
-        let is_off_the_left = translation.x < stage_manifest.blast_zone_top_left.x;
-        let is_off_the_right = translation.x > stage_manifest.blast_zone_bottom_right.x;
-        let is_off_the_top = translation.y > stage_manifest.blast_zone_top_left.y;
-        let is_off_the_bottom = translation.y < stage_manifest.blast_zone_bottom_right.y;
-        
-        if is_off_the_left || is_off_the_bottom || is_off_the_right {
-            pending_respawn.0 = true;
-        } else if is_off_the_top {
-            let is_in_hitstun = matches!(state, FighterState::Hitstun(..));
-            if is_in_hitstun {
-                pending_respawn.0 = true;
-            }
-        }
-    }
-}

src/fighter/collision.rs

@@ -2,10 +2,9 @@
 
 use crate::fighter::ecb::FighterPreviousECB;
 use crate::fighter::{FighterECB, FighterPreviousTranslation, FighterTranslation};
-use crate::math::rect::FGRect;
 use crate::math::segment::FGSegment2d;
 use crate::math::vec::FGVec2;
-use crate::stage::line::{StageCollision, StageLineID, StagePolyType, StageVertexID};
+use crate::stage::line::{StageCollision, StageLineID};
 /*
 pub fn collide_fighter_with_scene(
     fighters: Query<(&FighterECB, &mut FighterVelocity, &mut FighterTranslation)>,
@@ -45,204 +44,37 @@ pub fn air_collide_with_stage(
     prev_ecb: &FighterPreviousECB,
     ecb: &FighterECB,
     stage_collision: &StageCollision,
-    ignored_polys: &[usize],
-    can_ignore_soft_platforms: bool,
 ) -> Option<AirCollisionWithStageResult> {
     let ray_segment = FGSegment2d::new(
         prev_translation.0 + prev_ecb.get_bottom_point(),
         translation.0 + ecb.get_bottom_point(),
     );
 
-    stage_collision
-        .stage_polys
-        .iter()
-        .enumerate()
-        .filter(|(poly_idx, poly)| {
-            !ignored_polys.contains(poly_idx)
-                && !(can_ignore_soft_platforms && matches!(poly.poly_type, StagePolyType::Platform))
-        })
-        .filter_map(|(poly_idx, poly)| {
-            poly.intersect_ray(ray_segment).map(|intersect_result| {
-                (
-                    AirCollisionWithStageResult {
-                        line_id: {
-                            StageLineID {
-                                polygon: poly_idx,
-                                segment: intersect_result.segment_idx,
-                            }
-                        },
-                        hit_position: intersect_result.position,
-                        hit_normal: intersect_result.normal,
+    let mut intersect_results = vec![];
+
+    for (poly_idx, poly) in stage_collision.stage_polys.iter().enumerate() {
+        if let Some(intersect_result) = poly.intersect_ray(ray_segment) {
+            intersect_results.push((
+                AirCollisionWithStageResult {
+                    line_id: {
+                        StageLineID {
+                            polygon: poly_idx,
+                            segment: intersect_result.segment_idx,
+                        }
                     },
-                    intersect_result
-                        .position
-                        .distance_squared(ray_segment.point2()),
-                )
-            })
-        })
-        .max_by(|(_, a), (_, b)| a.cmp(b))
-        .map(|(result, _)| result)
-}
-
-#[derive(Clone)]
-pub struct AirCollisionWithLedgeResult {
-    pub ledge: StageVertexID,
-}
-
-pub fn air_collide_with_ledges(
-    ledge_box: &FGRect,
-    stage_collision: &StageCollision,
-) -> Option<AirCollisionWithLedgeResult> {
-    stage_collision.intersect_ledges(ledge_box).map(|result| {
-        AirCollisionWithLedgeResult { ledge: result.vertex_id }
-    })
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::fighter::ecb::{FighterECB, FighterPreviousECB};
-    use crate::stage::line::{StagePoly, StagePolyLineSegmentType, StagePolyType};
-
-    fn horizontal_platform(y: &str) -> StagePoly {
-        StagePoly::build(
-            StagePolyType::Platform,
-            &[
-                (FGVec2::lit("-2", y), StagePolyLineSegmentType::Floor),
-                (FGVec2::lit("2", y), StagePolyLineSegmentType::Floor),
-            ],
-        )
-    }
-
-    fn solid_floor() -> StagePoly {
-        StagePoly::build(
-            StagePolyType::Closed,
-            &[
-                (FGVec2::lit("-2", "0"), StagePolyLineSegmentType::Floor),
-                (FGVec2::lit("2", "0"), StagePolyLineSegmentType::Floor),
-                (FGVec2::lit("2", "-2"), StagePolyLineSegmentType::Wall),
-                (FGVec2::lit("-2", "-2"), StagePolyLineSegmentType::Wall),
-            ],
-        )
-    }
-
-    #[test]
-    fn airborne_collision_skips_ignored_polygons() {
-        let stage_collision = StageCollision {
-            stage_polys: vec![horizontal_platform("0"), horizontal_platform("1")],
-            ..StageCollision::default()
-        };
-        let previous_translation = FighterPreviousTranslation(FGVec2::lit("0", "2"));
-        let translation = FighterTranslation(FGVec2::lit("0", "-1"));
-        let previous_ecb = FighterPreviousECB {
-            bottom: FGVec2::ZERO,
-            top: FGVec2::ZERO,
-            left: FGVec2::ZERO,
-            right: FGVec2::ZERO,
-        };
-        let ecb = FighterECB {
-            bottom: FGVec2::ZERO,
-            top: FGVec2::ZERO,
-            left: FGVec2::ZERO,
-            right: FGVec2::ZERO,
-        };
-
-        let collision = air_collide_with_stage(
-            &previous_translation,
-            &translation,
-            &previous_ecb,
-            &ecb,
-            &stage_collision,
-            &[1],
-            false,
-        )
-        .expect("the non-ignored platform should still be collidable");
-
-        assert_eq!(collision.line_id.polygon, 0);
-        assert_eq!(collision.hit_position, FGVec2::lit("0", "0"));
-    }
-
-    #[test]
-    fn airborne_collision_skips_soft_platforms_while_passing_down() {
-        let stage_collision = StageCollision {
-            stage_polys: vec![horizontal_platform("0")],
-            ..StageCollision::default()
-        };
-        let previous_translation = FighterPreviousTranslation(FGVec2::lit("0", "2"));
-        let translation = FighterTranslation(FGVec2::lit("0", "-1"));
-        let previous_ecb = FighterPreviousECB {
-            bottom: FGVec2::ZERO,
-            top: FGVec2::ZERO,
-            left: FGVec2::ZERO,
-            right: FGVec2::ZERO,
-        };
-        let ecb = FighterECB {
-            bottom: FGVec2::ZERO,
-            top: FGVec2::ZERO,
-            left: FGVec2::ZERO,
-            right: FGVec2::ZERO,
-        };
-
-        assert!(air_collide_with_stage(
-            &previous_translation,
-            &translation,
-            &previous_ecb,
-            &ecb,
-            &stage_collision,
-            &[],
-            true,
-        )
-        .is_none());
-
-        assert_eq!(
-            air_collide_with_stage(
-                &previous_translation,
-                &translation,
-                &previous_ecb,
-                &ecb,
-                &stage_collision,
-                &[],
-                false,
-            )
-            .expect("air dodges still collide with soft platforms")
-            .hit_position,
-            FGVec2::lit("0", "0")
-        );
-    }
-
-    #[test]
-    fn airborne_collision_still_hits_solid_floors_while_passing_down() {
-        let stage_collision = StageCollision {
-            stage_polys: vec![solid_floor()],
-            ..StageCollision::default()
-        };
-        let previous_translation = FighterPreviousTranslation(FGVec2::lit("0", "2"));
-        let translation = FighterTranslation(FGVec2::lit("0", "-1"));
-        let previous_ecb = FighterPreviousECB {
-            bottom: FGVec2::ZERO,
-            top: FGVec2::ZERO,
-            left: FGVec2::ZERO,
-            right: FGVec2::ZERO,
-        };
-        let ecb = FighterECB {
-            bottom: FGVec2::ZERO,
-            top: FGVec2::ZERO,
-            left: FGVec2::ZERO,
-            right: FGVec2::ZERO,
-        };
-
-        let collision = air_collide_with_stage(
-            &previous_translation,
-            &translation,
-            &previous_ecb,
-            &ecb,
-            &stage_collision,
-            &[],
-            true,
-        )
-        .expect("solid floors remain collidable while passing down");
-
-        assert_eq!(collision.line_id.polygon, 0);
-        assert_eq!(collision.hit_position, FGVec2::lit("0", "0"));
-    }
+                    hit_position: intersect_result.position,
+                    hit_normal: intersect_result.normal,
+                },
+                intersect_result
+                    .position
+                    .distance_squared(ray_segment.point2()),
+            ));
+        }
+    }
+    intersect_results.sort_by(|(_, a), (_, b)| a.cmp(b));
+
+    intersect_results
+        .iter()
+        .last()
+        .map(|(val, _)| val.to_owned().clone())
 }

src/fighter/debug.rs

@@ -1,34 +1,33 @@
 //! Fighter debug views: gizmos and the egui inspector window.
 
+use std::sync::OnceLock;
 
-use bevy::color::palettes::css::{ORANGE, ORANGE_RED, WHITE};
-use bevy::prelude::*;
-use bevy_egui::{egui, EguiContexts};
+use bevy::color::palettes::css::ORANGE;
+use bevy::{color::palettes::css::YELLOW, prelude::*};
+use bevy_egui::{EguiContexts, egui};
 
 use crate::debug_tools::{DebugSettings, FighterDebugRowKind};
 use crate::fighter::animation::FighterAnimationFrame;
 use crate::fighter::attack::{
-    self, FighterKnockbackVelocity, FighterLastAttackDebug, FighterPendingHitReaction,
+    FighterKnockbackVelocity, FighterLastAttackDebug, FighterPendingHitReaction,
     FighterSolvedHurtboxes,
 };
 use crate::fighter::baked_animation::{BakedFighterAnimations, FighterBoneMatrices};
 use crate::fighter::ecb::FighterPreviousECB;
 use crate::fighter::errors::FighterErrors;
+use crate::fighter::hurtbox::FixedAffineCapsule;
 use crate::fighter::manifest::FighterManifest;
-use crate::fighter::state::{air, FighterState};
+use crate::fighter::state::{FighterState, air};
 use crate::fighter::visual::FighterAnimations;
 use crate::fighter::{
     Fighter, FighterECB, FighterFacingDirection, FighterHitboxes, FighterPreviousTranslation,
     FighterTranslation, FighterVelocity,
 };
-use crate::filled_gizmos::FilledGizmos;
 use crate::game_settings::GameSettings;
 use crate::input::FighterInput;
 use crate::math::int::FGi32;
 use crate::math::vec::FGVec2;
-use crate::math::vec3::FGVec3;
 use crate::player::Player;
-use crate::scripting::FighterAttackScript;
 
 pub fn debug_draw_ecb(
     ecbs: Query<(
@@ -38,27 +37,17 @@ pub fn debug_draw_ecb(
         &FighterPreviousTranslation,
     )>,
     mut gizmos: Gizmos,
-    mut filled_gizmos: FilledGizmos,
 ) {
     for (ecb, trf, ecb_prev, trf_prev) in ecbs {
-        gizmos.cross(
-            FGVec3::new(trf.0.x, trf.0.y, FGi32::ZERO).to_vec3(),
-            2.0,
-            bevy::color::palettes::css::BLUE,
-        );
-
-        let prev_transformed = ecb_prev.to_3d_lineloop(Transform::from_xyz(
-            trf_prev.x.to_num::<f32>(),
-            trf_prev.y.to_num(),
-            0.0,
-        ));
-        filled_gizmos.polygon(&prev_transformed, ORANGE_RED);
-
         let transformed =
             ecb.to_3d_lineloop(Transform::from_xyz(trf.x.to_num(), trf.y.to_num(), 0.0));
-        filled_gizmos.polygon(&transformed, ORANGE);
-        gizmos.lineloop(transformed, WHITE);
-
+        gizmos.lineloop(transformed, YELLOW);
+        let prev_transformed = ecb_prev.to_3d_lineloop(Transform::from_xyz(
+            trf_prev.x.to_num(),
+            trf_prev.y.to_num(),
+            -0.1,
+        ));
+        gizmos.lineloop(prev_transformed, ORANGE);
     }
 }
 pub fn fighter_debug(
@@ -149,8 +138,6 @@ pub fn fighter_debug(
                                     last_frame.movement.x, last_frame.movement.y
                                 ));
                             });
-
-                            ui.label(format!("Flick age Y {}", input.peek_movement_flick_dbg()));
                         }
                         FighterDebugRowKind::Position => {
                             ui.label(format!("Position: {:?}", translation.0));
@@ -166,77 +153,31 @@ pub fn fighter_debug(
     Ok(())
 }
 
-pub fn animation_debug(
-    query: Query<(
-        &FighterTranslation,
-        &FighterFacingDirection,
-        &FighterBoneMatrices,
-        &Fighter,
-    )>,
-    mut gizmos: Gizmos,
-    fighter_manifests: Res<Assets<FighterManifest>>,
-) {
-    for (global_transform, facing_dir, matrices, fighter) in query {
-        let Some(manifest) = fighter_manifests.get(&fighter.manifest) else {
-            continue;
-        };
-        let global_transform = global_transform.get_3d_transform(facing_dir);
-        let marker_transform = global_transform.to_mat4();
-        for (bone_name, matrix) in matrices.iter() {
+pub fn animation_debug(query: Query<(&GlobalTransform, &FighterBoneMatrices)>, mut gizmos: Gizmos) {
+    for (global_transform, matrices) in query {
+        let (_, rotation, translation) = global_transform.to_scale_rotation_translation();
+        let marker_transform = Transform::from_translation(translation).with_rotation(rotation);
+        for (_, matrix) in matrices.iter() {
             let pos = marker_transform.transform_point(Vec3::new(
                 matrix.cols[3][0].to_num(),
                 matrix.cols[3][1].to_num(),
                 matrix.cols[3][2].to_num(),
             ));
-
-            if manifest.ecb_bones.iter().any(|ecb_bone_name| ecb_bone_name == bone_name) {
-                gizmos.cross(pos, 1.0, bevy::color::palettes::css::GREEN);
-            } else {
-                gizmos.cross(pos, 0.5, bevy::color::palettes::css::RED);
-                gizmos.axes(marker_transform, 1.0);
-            }
-
+            gizmos.cross(pos, 0.5, bevy::color::palettes::css::RED);
+            gizmos.axes(marker_transform, 1.0);
         }
     }
 }
 
-pub fn hurtbox_debug(
-    query: Query<&FighterSolvedHurtboxes>,
-    mut filled_gizmos: FilledGizmos,
-) {
+pub fn hurtbox_debug(query: Query<&FighterSolvedHurtboxes>, mut gizmos: Gizmos) {
     for hurtboxes in &query {
         for hurtbox in &hurtboxes.0 {
-            filled_gizmos.affine_capsule(
-                hurtbox.capsule.transform.to_mat4(),
-                hurtbox.capsule.radius.to_num(),
-                hurtbox.capsule.half_length.to_num(),
-                Color::srgba(1.0, 1.0, 0.0, 0.75),
-            );
+            draw_affine_capsule(&mut gizmos, hurtbox.capsule, YELLOW);
         }
     }
 }
 
-pub fn ledge_grab_debug(query: Query<(&FighterTranslation, &Fighter)>, fighters: Res<Assets<FighterManifest>>, mut gizmos: Gizmos) {
-    for (translation, fighter) in query {
-        let Some(manifest) = fighters.get(&fighter.manifest) else {
-            continue;
-        };
-
-        let start_2d = translation.0 + manifest.ledge_grab_box_start;
-        let start_2d = Vec2::new(start_2d.x.to_num(), start_2d.y.to_num());
-
-        let end_2d = translation.0 + manifest.ledge_grab_box_end;
-        let end_2d = Vec2::new(end_2d.x.to_num(), end_2d.y.to_num());
-
-
-        let center = (start_2d + end_2d) * 0.5;
-        let size = (start_2d - end_2d).abs();
-        
-        gizmos.rect(Vec3::new(center.x, center.y, 0.0), size, bevy::color::palettes::css::BLUE);
-    }
-}
-
-/*fn draw_affine_capsule(
+fn draw_affine_capsule(
     gizmos: &mut Gizmos,
     capsule: FixedAffineCapsule,
     color: impl Into<Color> + Copy,
@@ -258,9 +199,9 @@ pub fn ledge_grab_debug(query: Query<(&FighterTranslation, &Fighter)>, fighters:
     for &(start, end) in &wireframe.lines {
         gizmos.line(vertices[start], vertices[end], color);
     }
-}*/
+}
 
-/*struct CapsuleWireVertex {
+struct CapsuleWireVertex {
     direction: Vec3,
     center_sign: f32,
 }
@@ -268,9 +209,9 @@ pub fn ledge_grab_debug(query: Query<(&FighterTranslation, &Fighter)>, fighters:
 struct CapsuleWireframe {
     vertices: Vec<CapsuleWireVertex>,
     lines: Vec<(usize, usize)>,
-}*/
+}
 
-/*fn capsule_wireframe() -> &'static CapsuleWireframe {
+fn capsule_wireframe() -> &'static CapsuleWireframe {
     const RESOLUTION: usize = 16;
     const HEMISPHERE_STEPS: usize = 4;
     static WIREFRAME: OnceLock<CapsuleWireframe> = OnceLock::new();
@@ -351,7 +292,7 @@ struct CapsuleWireframe {
 
         CapsuleWireframe { vertices, lines }
     })
-}*/
+}
 
 #[cfg(test)]
 mod capsule_debug_tests {
@@ -371,7 +312,7 @@ mod capsule_debug_tests {
         assert!(marker.abs_diff_eq(Vec3::new(3.0, 4.0, 3.0), 1e-5));
     }
 
-    /*#[test]
+    #[test]
     fn capsule_wireframe_caps_extend_in_opposite_directions() {
         let wireframe = capsule_wireframe();
         let lower: Vec<_> = wireframe
@@ -389,7 +330,7 @@ mod capsule_debug_tests {
         assert!(upper.iter().all(|vertex| vertex.direction.y >= 0.0));
         assert!(lower.iter().any(|vertex| vertex.direction == Vec3::NEG_Y));
         assert!(upper.iter().any(|vertex| vertex.direction == Vec3::Y));
-    }*/
+    }
 }
 
 pub fn attack_debug(
@@ -401,8 +342,6 @@ pub fn attack_debug(
         &FighterAnimationFrame,
     )>,
     mut gizmos: Gizmos,
-    mut filled_gizmos: FilledGizmos,
-    attack_scripts: Res<Assets<FighterAttackScript>>
 ) {
     for (hitboxes, _matrices, _translation, _facing_direction, _frame) in query {
         if let Some(active_attack) = &hitboxes.0 {
@@ -413,35 +352,21 @@ pub fn attack_debug(
                     (solved_hitbox.capsule.start + solved_hitbox.capsule.end) * FGi32::lit("0.5");
                 let length = (start - end).length();
 
+                let attack_capsule = Capsule3d {
+                    half_length: length * 0.5,
+                    radius: solved_hitbox.capsule.radius.to_num(),
+                };
+
                 let aim_dir = (end - start).normalize_or(Vec3::Y);
 
                 let mut capsule_draw_trf = Transform::IDENTITY;
                 capsule_draw_trf.translation = center.to_vec3();
                 capsule_draw_trf.align(Dir3::Y, aim_dir, Dir3::X, aim_dir.any_orthonormal_vector());
 
-                let Some(script) = attack_scripts.get(&active_attack.script) else {
-                    continue;
-                };
-
-                let hitbox_color =  script.hitboxes.get(solved_hitbox.hitbox_idx).expect("This hitbox should be valid").get_debug_draw_color();
-                /*
-                let attack_capsule = Capsule3d {
-                    half_length: length * 0.5,
-                    radius: solved_hitbox.capsule.radius.to_num(),
-                };
                 gizmos.primitive_3d(
                     &attack_capsule,
                     capsule_draw_trf.to_isometry(),
-                    hitbox_color,
-                );*/
-
-                let hitbox_inner_color = bevy::color::Srgba { alpha: 0.18, ..hitbox_color };
-
-                filled_gizmos.capsule(
-                    capsule_draw_trf.to_isometry(),
-                    solved_hitbox.capsule.radius.to_num(),
-                    length * 0.5,
-                    hitbox_inner_color,
+                    bevy::color::palettes::css::RED,
                 );
 
                 gizmos.cross(start, 1.0, bevy::color::palettes::css::GREEN);
@@ -457,14 +382,14 @@ pub fn attack_debug_gather(
         &FighterPendingHitReaction,
         &FighterTranslation,
         &Fighter,
-        &FighterInput,
     )>,
     mut commands: Commands,
     manifests: Res<Assets<FighterManifest>>,
     game_settings: Res<GameSettings>,
 ) -> Result {
-    for (entity, reaction, translation, fighter, input) in query {
+    for (entity, reaction, translation, fighter) in query {
         let Some(ref hit) = reaction.0 else {
+            commands.entity(entity).remove::<FighterLastAttackDebug>();
             continue;
         };
 
@@ -472,13 +397,7 @@ pub fn attack_debug_gather(
             .get(&fighter.manifest)
             .ok_or(FighterErrors::FighterManifestNotFound)?;
 
-        let launch_dir = attack::directional_influence::apply_directional_influence(
-            input.get_last_frame().movement,
-            hit.launch_angle,
-            game_settings.fighter_common.di_max_angle,
-        );
-
-        let mut knockback_vel = FighterKnockbackVelocity(launch_dir * hit.launch_velocity);
+        let mut knockback_vel = FighterKnockbackVelocity(hit.launch_velocity);
         let mut fighter_vel = FighterVelocity(FGVec2::ZERO);
         let mut translation = Vec3::new(translation.x.to_num(), translation.y.to_num(), 0.0);
 
@@ -487,7 +406,7 @@ pub fn attack_debug_gather(
         points.reserve(hit.hitstun_frames as usize);
 
         for _ in 1..hit.hitstun_frames {
-            air::integrate_gravity(&mut fighter_vel, &manifest.attributes, false);
+            air::integrate_gravity(&mut fighter_vel, &manifest.attributes);
 
             let vel = knockback_vel.length();
             let new_vel = vel

src/fighter/ecb.rs

@@ -1,44 +1,28 @@
 use bevy::prelude::*;
 
-use crate::{
-    fighter::{
-        FighterFacingDirection, FighterSurfaceState, FighterTranslation,
-        baked_animation::FighterBoneMatrices,
-    }, math::{int::FGi32, vec::FGVec2},
-};
+use crate::math::{int::FGi32, vec::FGVec2};
 
 /// Environment collision box: the diamond used to resolve a fighter against
 /// the stage. Purely geometry — the collision response lives in
 /// [`super::collision`].
-#[derive(Component, Debug, Clone, Copy, Hash, Default)]
+#[derive(Component, Debug, Clone, Copy, Hash)]
 #[require(FighterPreviousECB)]
 pub struct FighterECB {
-    pub top: FGVec2,
-    pub bottom: FGVec2,
-    pub left: FGVec2,
-    pub right: FGVec2,
-}
-
-#[derive(Component, Debug, Clone)]
-pub struct FighterECBBoneIndices {
-    pub indices: Vec<usize>,
+    pub vertical_half: FGi32,
+    pub horizontal_half: FGi32,
 }
 
 #[derive(Component, Debug, Clone, Copy, Default, Hash)]
 pub struct FighterPreviousECB {
-    pub top: FGVec2,
-    pub bottom: FGVec2,
-    pub left: FGVec2,
-    pub right: FGVec2,
+    pub vertical_half: FGi32,
+    pub horizontal_half: FGi32,
 }
 
 impl From<FighterECB> for FighterPreviousECB {
     fn from(ecb: FighterECB) -> Self {
         Self {
-            top: ecb.top,
-            bottom: ecb.bottom,
-            left: ecb.left,
-            right: ecb.right,
+            vertical_half: ecb.vertical_half,
+            horizontal_half: ecb.horizontal_half,
         }
     }
 }
@@ -51,85 +35,53 @@ pub fn snapshot_fighter_ecb(fighters: Query<(&FighterECB, &mut FighterPreviousEC
 
 impl FighterECB {
     pub fn to_3d_lineloop(&self, trf: Transform) -> [Vec3; 4] {
-        [self.top, self.right, self.bottom, self.left]
-            .map(|point| trf.transform_point(Vec3::new(point.x.to_num(), point.y.to_num(), 0.0)))
+        let rel_up = trf.transform_point(Vec3::new(
+            0.0,
+            (self.vertical_half + self.vertical_half).to_num(),
+            0.0,
+        ));
+        let rel_down = trf.transform_point(Vec3::new(0.0, 0.0, 0.0));
+        let rel_left = trf.transform_point(Vec3::new(
+            (-self.horizontal_half).to_num(),
+            self.vertical_half.to_num(),
+            0.0,
+        ));
+        let rel_right = trf.transform_point(Vec3::new(
+            self.horizontal_half.to_num(),
+            self.vertical_half.to_num(),
+            0.0,
+        ));
+        [rel_up, rel_right, rel_down, rel_left]
     }
 
     pub fn get_bottom_point(&self) -> FGVec2 {
-        self.bottom
+        FGVec2::new(FGi32::ZERO, FGi32::ZERO)
     }
 }
 
 impl FighterPreviousECB {
     pub fn to_3d_lineloop(&self, trf: Transform) -> [Vec3; 4] {
-        [self.top, self.right, self.bottom, self.left]
-            .map(|point| trf.transform_point(Vec3::new(point.x.to_num(), point.y.to_num(), 0.0)))
+        let rel_up = trf.transform_point(Vec3::new(
+            0.0,
+            (self.vertical_half + self.vertical_half).to_num(),
+            0.0,
+        ));
+        let rel_down = trf.transform_point(Vec3::new(0.0, 0.0, 0.0));
+        let rel_left = trf.transform_point(Vec3::new(
+            (-self.horizontal_half).to_num(),
+            self.vertical_half.to_num(),
+            0.0,
+        ));
+        let rel_right = trf.transform_point(Vec3::new(
+            self.horizontal_half.to_num(),
+            self.vertical_half.to_num(),
+            0.0,
+        ));
+        [rel_up, rel_right, rel_down, rel_left]
     }
 
     pub fn get_bottom_point(&self) -> FGVec2 {
-        self.bottom
-    }
-}
-
-pub fn update_ecb(
-    query: Query<(
-        &mut FighterECB,
-        &FighterSurfaceState,
-        &FighterECBBoneIndices,
-        &FighterBoneMatrices,
-        &FighterTranslation,
-        &FighterFacingDirection,
-    )>,
-) {
-    for (mut ecb, surface_state, bone_indices, bone_matrices, translation, facing_dir) in query {
-        let trf = translation.get_3d_transform(facing_dir);
-
-        let transformed_ecb_bones = bone_indices.indices.iter().filter_map(|idx| {
-            let Some((_, bone_matrix)) = bone_matrices.get_by_idx(*idx) else {
-                return None;
-            };
-
-            let pt = trf.transform_point(bone_matrix.get_translation());
-
-            Some(FGVec2::new(pt.x, pt.y) - translation.0)
-        }).collect::<Vec<_>>();
-
-        let max_x = transformed_ecb_bones.iter().max_by(|a, b| a.x.cmp(&b.x)).map(|final_val| final_val.x).unwrap_or(FGi32::lit("0.5"));
-        let min_x = transformed_ecb_bones.iter().min_by(|a, b| a.x.cmp(&b.x)).map(|final_val| final_val.x).unwrap_or(FGi32::lit("-0.5"));
-        let max_y = transformed_ecb_bones.iter().max_by(|a, b| a.y.cmp(&b.y)).map(|final_val| final_val.y).unwrap_or(FGi32::lit("0.5"));
-        let min_y = transformed_ecb_bones.iter().min_by(|a, b| a.y.cmp(&b.y)).map(|final_val| final_val.y).unwrap_or(FGi32::lit("-0.5"));
-
-        let midpoint_height = (max_y + min_y) / FGi32::lit("2.0");
-        let top = FGVec2::new(FGi32::ZERO, max_y);
-        let bottom = FGVec2::new(FGi32::ZERO, min_y);
-        let left = FGVec2::new(min_x, midpoint_height);
-        let right = FGVec2::new(max_x, midpoint_height);
-
-        let ecb_lock_frames_remaining = if let FighterSurfaceState::Airborne { ecb_lock_frames_remaining, .. } = surface_state {
-            *ecb_lock_frames_remaining
-        } else {
-            0
-        };
-
-        ecb.top = top;
-
-        if ecb_lock_frames_remaining == 0 {
-            ecb.bottom = bottom;
-        }
-
-        ecb.left = left;
-        ecb.right = right;
-
-        if surface_state.is_grounded() {
-            ecb.bottom = FGVec2::ZERO;
-        }
-    }
-}
-
-pub fn decrement_ecb_lockout(surface_states: Query<&mut FighterSurfaceState>) {
-    for mut state in surface_states {
-        state.tick_ecb_lock();
-        state.tick_ignored_polygons();
+        FGVec2::new(FGi32::ZERO, FGi32::ZERO)
     }
 }
 
@@ -140,16 +92,12 @@ mod tests {
     #[test]
     fn previous_ecb_copies_current_dimensions() {
         let current = FighterECB {
-            bottom: FGVec2::lit("0.0", "-0.5"),
-            top: FGVec2::lit("0.0", "0.5"),
-            left: FGVec2::lit("-0.5", "0.0"),
-            right: FGVec2::lit("0.5", "0.0"),
+            vertical_half: FGi32::lit("0.5"),
+            horizontal_half: FGi32::lit("0.25"),
         };
         let previous = FighterPreviousECB::from(current);
 
-        assert_eq!(previous.top, current.top);
-        assert_eq!(previous.bottom, current.bottom);
-        assert_eq!(previous.left, current.left);
-        assert_eq!(previous.right, current.right);
+        assert_eq!(previous.vertical_half, current.vertical_half);
+        assert_eq!(previous.horizontal_half, current.horizontal_half);
     }
 }

src/fighter/manifest.rs

@@ -8,7 +8,11 @@ use strum::IntoEnumIterator;
 use strum_macros::EnumIter;
 
 use crate::{
-    AppState, fighter::{FighterAttributes, FighterCameraProfile, animation::AnimKind, attack::AttackKind}, game_settings::GameSettings, math::{int::FGi32, vec::FGVec2, vec3::FGVec3}, texture_reference::TextureReference,
+    AppState,
+    fighter::{FighterAttributes, FighterCameraProfile, animation::AnimKind, attack::AttackKind},
+    game_settings::GameSettings,
+    math::{int::FGi32, vec3::FGVec3},
+    texture_reference::TextureReference,
 };
 
 #[derive(
@@ -58,19 +62,9 @@ pub struct FighterManifest {
     pub icon: TextureReference,
     pub attributes: FighterAttributes,
     pub camera: FighterCameraProfile,
-    /// Bone whose model-space translation drives gameplay root motion.
-    #[serde(default = "default_root_motion_bone")]
-    pub root_motion_bone: String,
     pub animations: HashMap<AnimKind, String>,
     pub attack_scripts: HashMap<AttackKind, String>,
     pub hurtboxes: Vec<FighterHurtbox>,
-    pub ecb_bones: Vec<String>,
-    pub ledge_grab_box_start: FGVec2,
-    pub ledge_grab_box_end: FGVec2,
-}
-
-fn default_root_motion_bone() -> String {
-    "root".into()
 }
 
 #[derive(Resource)]

src/fighter/mod.rs

@@ -17,11 +17,8 @@ pub mod errors;
 pub mod hurtbox;
 pub mod manifest;
 pub mod motion;
-pub mod push;
 pub mod state;
-pub mod surface;
 pub mod visual;
-pub mod blast_zones;
 
 // The fighter components are re-exported so the rest of the crate can say
 // `fighter::FighterVelocity` without caring which file it lives in. Named
@@ -31,19 +28,29 @@ pub use attributes::FighterAttributes;
 pub use ecb::FighterECB;
 pub use manifest::FighterId;
 pub use motion::{
-    FighterPresentationSnap, FighterPreviousFacingDirection, FighterPreviousTranslation,
-    FighterTranslation, FighterVelocity,
+    FighterPreviousFacingDirection, FighterPreviousTranslation, FighterTranslation,
+    FighterVelocity, Grounded,
 };
-pub use surface::FighterSurfaceState;
 
 use crate::{
-    AppState, fighter::{
+    AppState,
+    fighter::{
         attack::{
             AttackKind, FighterAttackPlugin, FighterAttackScriptAssets, FighterDamage,
-            FighterKnockbackVelocity, FighterPendingHitReaction, FighterSolvedHurtboxes,
-            FighterStaleMoveQueue,
-        }, baked_animation::FighterBoneIndexMap, ecb::FighterECBBoneIndices, manifest::FighterManifest, state::{FighterState, air::AirborneStateCommon, fall::FallState}, visual::{FighterAnimations, FighterInvulnerabilityVisualState},
-    }, game_settings::GameSettings, input::FighterInput, math::{int::FGi32, vec::FGVec2}, player::Player, schedule::GameplaySet, scripting::FighterAttackScript,
+            FighterKnockbackVelocity, FighterPendingHitReaction, FighterReceivedAttacks,
+            FighterSolvedHurtboxes, FighterStaleMoveQueue,
+        },
+        baked_animation::{FighterBoneIndexMap, FighterBoneMatrices},
+        manifest::FighterManifest,
+        state::{FighterState, fall::FallState},
+        visual::FighterAnimations,
+    },
+    input::FighterInput,
+    math::{int::FGi32, vec::FGVec2},
+    player::Player,
+    schedule::GameplaySet,
+    scripting::FighterAttackScript,
+    stage::line::StageCollision,
 };
 use state::state_interrupt_system;
 
@@ -58,87 +65,11 @@ pub enum FighterFacingDirection {
     Right,
 }
 
-#[derive(Component, Copy, Clone, Hash, Debug, PartialEq, Reflect, Default)]
-pub enum FighterHitstopShakeKind {
-    #[default]
-    Horizontal,
-    Vertical,
-}
-
-#[derive(Component, Copy, Clone, Hash, Debug, PartialEq, Reflect, Default)]
-pub enum FighterHitstopShakeRole {
-    #[default]
-    Attacker,
-    Receiver,
-}
-
 #[derive(Component, Default, Copy, Clone, Hash)]
-pub struct FighterHitstopShake {
-    pub remaining_frames: u32,
-    pub total_frames: u32,
-    pub kind: FighterHitstopShakeKind,
-    pub role: FighterHitstopShakeRole,
-}
-
-#[derive(Component, Default, Copy, Clone, Hash)]
-#[require(FighterHitstopShake)]
 pub struct FighterHitstop {
     pub remaining_frames: u32,
 }
 
-#[derive(Component, Default, Copy, Clone, Hash, Debug, PartialEq, Eq)]
-pub struct FighterLedgeInformation {
-    pub regrab_lockout_remaining_frames: u32,
-    pub grab_count: u32,
-}
-
-impl FighterLedgeInformation {
-    pub fn start(&mut self, duration_frames: u32) {
-        self.regrab_lockout_remaining_frames = duration_frames;
-    }
-
-    pub fn is_regrab_lockout_active(&self) -> bool {
-        self.regrab_lockout_remaining_frames > 0
-    }
-
-    fn tick(&mut self) {
-        self.regrab_lockout_remaining_frames = self.regrab_lockout_remaining_frames.saturating_sub(1);
-    }
-}
-
-#[cfg(test)]
-mod ledge_grab_lockout_tests {
-    use super::FighterLedgeInformation;
-
-    #[test]
-    fn lockout_expires_after_the_requested_number_of_ticks() {
-        let mut lockout = FighterLedgeInformation::default();
-        lockout.start(2);
-
-        assert!(lockout.is_regrab_lockout_active());
-        lockout.tick();
-        assert!(lockout.is_regrab_lockout_active());
-        lockout.tick();
-        assert!(!lockout.is_regrab_lockout_active());
-    }
-
-    #[test]
-    fn zero_duration_does_not_enable_lockout() {
-        let mut lockout = FighterLedgeInformation::default();
-        lockout.start(0);
-
-        assert!(!lockout.is_regrab_lockout_active());
-    }
-}
-
-#[derive(Component, Default, Copy, Clone, Hash)]
-pub enum FighterInvulnerabilityState {
-    #[default]
-    Vulnerable,
-    Invulnerable { frames_remaining: Option<u32> },
-    Intangible { frames_remaining: Option<u32> }
-}
-
 impl FighterFacingDirection {
     fn reverse(&self) -> Self {
         match self {
@@ -183,21 +114,14 @@ impl FighterFacingDirection {
 #[require(Transform)]
 pub struct FighterVisual;
 
-#[derive(Component, DerefMut, Deref, Debug, Default, Hash, Clone, Copy)]
-pub struct FighterPendingRespawn(bool);
-
 #[derive(Component)]
 #[require(
+    FighterReceivedAttacks,
     FighterStaleMoveQueue,
     FighterDamage,
     FighterPendingHitReaction,
-    FighterPendingRespawn,
     FighterHitstop,
-    FighterLedgeInformation,
-    FighterKnockbackVelocity,
-    FighterTranslation,
-    FighterInvulnerabilityState,
-    FighterInvulnerabilityVisualState,
+    FighterKnockbackVelocity
 )]
 pub struct Fighter {
     pub manifest: Handle<FighterManifest>,
@@ -210,10 +134,6 @@ impl Plugin for FighterPlugin {
     fn build(&self, app: &mut App) {
         app.add_plugins(FighterAttackPlugin)
             // Every state gets a chance to interrupt itself, in priority order.
-            .add_systems(
-                GgrsSchedule,
-                motion::clear_fighter_presentation_snaps.in_set(GameplaySet::Input),
-            )
             .add_systems(
                 GgrsSchedule,
                 (
@@ -226,7 +146,7 @@ impl Plugin for FighterPlugin {
             )
             .add_systems(
                 GgrsSchedule,
-                (state::state_update_system, decay_hitstop, decay_invulnerability)
+                (state::state_update_system, decay_hitstop)
                     .chain()
                     .in_set(GameplaySet::StateUpdate),
             )
@@ -238,33 +158,15 @@ impl Plugin for FighterPlugin {
             )*/
             .add_systems(
                 GgrsSchedule,
-                (
-                    (
-                        blast_zones::apply_blast_zones,
-                        ecb::update_ecb,
-                        ecb::decrement_ecb_lockout,
-                        state::state_collision_interrupt_system,
-                        decay_ledge_grab_lockout,
-                    ).chain(),
-                    baked_animation::resample_fighter_bone_matrices,
-                )
-                    .chain()
-                    .in_set(GameplaySet::Collision),
+                state::state_collision_interrupt_system.in_set(GameplaySet::Collision),
             )
             .add_systems(
-                GgrsSchedule,
-                push::apply_grounded_pushes
-                    .before(state::state_update_system)
-                    .in_set(GameplaySet::StateUpdate),
-            )
-            .add_systems(
-                PostUpdate,
+                Update,
                 (
                     motion::apply_fighter_translation_to_visuals,
                     animation::apply_animation,
                 )
                     .chain()
-                    .before(bevy::transform::TransformSystems::Propagate)
                     .run_if(in_state(crate::AppState::InMatch)),
             )
             // Rollback registration lives next to the systems that write these
@@ -282,40 +184,29 @@ impl Plugin for FighterPlugin {
             .checksum_component_with_hash::<FighterTranslation>()
             .rollback_component_with_copy::<FighterPreviousTranslation>()
             .checksum_component_with_hash::<FighterPreviousTranslation>()
-            .rollback_component_with_copy::<FighterPresentationSnap>()
-            .checksum_component_with_hash::<FighterPresentationSnap>()
             .rollback_component_with_copy::<FighterPreviousFacingDirection>()
             .checksum_component_with_hash::<FighterPreviousFacingDirection>()
             .rollback_component_with_copy::<animation::FighterAnimationFrame>()
             .checksum_component_with_hash::<animation::FighterAnimationFrame>()
-            .rollback_component_with_clone::<FighterSurfaceState>()
-            .checksum_component_with_hash::<FighterSurfaceState>()
+            .rollback_component_with_copy::<Grounded>()
+            .checksum_component_with_hash::<Grounded>()
             .rollback_component_with_copy::<FighterFacingDirection>()
             .rollback_component_with_copy::<FighterDamage>()
             .checksum_component_with_hash::<FighterDamage>()
             .rollback_component_with_clone::<FighterPendingHitReaction>()
             .checksum_component_with_hash::<FighterPendingHitReaction>()
-            .rollback_component_with_copy::<FighterPendingRespawn>()
-            .checksum_component_with_hash::<FighterPendingRespawn>()
             .rollback_component_with_copy::<FighterHitstop>()
             .checksum_component_with_hash::<FighterHitstop>()
-            .rollback_component_with_copy::<FighterLedgeInformation>()
-            .checksum_component_with_hash::<FighterLedgeInformation>()
-            .rollback_component_with_copy::<FighterInvulnerabilityState>()
-            .checksum_component_with_hash::<FighterInvulnerabilityState>()
             .rollback_component_with_copy::<FighterKnockbackVelocity>()
             .checksum_component_with_hash::<FighterKnockbackVelocity>()
-            .rollback_component_with_clone::<baked_animation::FighterBoneMatrices>()
-            .checksum_component_with_hash::<baked_animation::FighterBoneMatrices>()
+            .rollback_component_with_clone::<FighterReceivedAttacks>()
+            .checksum_component_with_hash::<FighterReceivedAttacks>()
+            .rollback_resource_with_reflect::<StageCollision>()
             // Debug views.
             .add_systems(
                 FixedPostUpdate,
                 debug::debug_draw_ecb.run_if(crate::debug_tools::ecb_enabled),
             )
-            .add_systems(
-                FixedPostUpdate,
-                debug::ledge_grab_debug.run_if(crate::debug_tools::ledge_grab_enabled),
-            )
             .add_systems(
                 EguiPrimaryContextPass,
                 debug::fighter_debug.run_if(crate::debug_tools::fighter_info_enabled),
@@ -335,17 +226,16 @@ impl Plugin for FighterPlugin {
                     .run_if(crate::debug_tools::attack_hitboxes_enabled)
                     .run_if(in_state(AppState::InMatch)),
             )
-            .add_systems(FixedPostUpdate, 
-                visual::update_status_colors.run_if(resource_exists::<GameSettings>)
-            )
             .add_systems(
                 FixedPostUpdate,
                 debug::hurtbox_debug.run_if(crate::debug_tools::hurtboxes_enabled),
             )
             .rollback_component_with_clone::<FighterState>()
             .rollback_component_with_clone::<FighterHitboxes>()
-            .rollback_component_with_clone::<FighterHitstopShake>()
+            .rollback_component_with_clone::<FighterBoneMatrices>()
             .checksum_component_with_hash::<FighterHitboxes>()
+            .rollback_component_with_clone::<FighterSolvedHurtboxes>()
+            .checksum_component_with_hash::<FighterSolvedHurtboxes>()
             .checksum_component_with_hash::<FighterState>()
             .checksum_component_with_hash::<FighterFacingDirection>()
             .register_type::<FighterFacingDirection>();
@@ -357,13 +247,6 @@ pub struct FighterActiveAttack {
     pub script: Handle<FighterAttackScript>,
     pub active_hitboxes: Vec<usize>,
     pub solved_hitboxes: Vec<attack::FighterSolvedHitbox>,
-    pub hit_groups: Vec<FighterHitGroupState>,
-    pub stalled: bool,
-}
-
-#[derive(Clone, Debug, Hash)]
-pub struct FighterHitGroupState {
-    pub group: u32,
     pub hit_fighters: Vec<Entity>,
 }
 
@@ -373,44 +256,39 @@ pub struct FighterHitboxes(pub Option<FighterActiveAttack>);
 pub fn spawn_fighter(
     commands: &mut Commands,
     player_handle: usize,
-    controller_port: usize,
     spawn_position: FGVec2,
     manifest: Handle<FighterManifest>,
     model_scale: FGi32,
     animations: FighterAnimations,
     attack_scripts: FighterAttackScriptAssets,
     visual_root: WorldAssetRoot,
-    ecb_bone_indices: Vec<usize>,
 ) -> Entity {
     commands
         .spawn((
             Name(format!("Fighter {player_handle}").into()),
             Player {
                 handle: player_handle,
-                controller_port,
             },
             Fighter { manifest: manifest },
             FighterFacingDirection::Right,
             FighterPreviousFacingDirection(FighterFacingDirection::Right),
-            FighterSurfaceState::default(),
             Transform::from_scale(Vec3::splat(model_scale.to_num())),
             (
-                FighterECB::default(),
+                FighterECB {
+                    vertical_half: FGi32::lit("5.0"),
+                    horizontal_half: FGi32::lit("2.5"),
+                },
                 FighterHitboxes::default(),
-                FighterECBBoneIndices {
-                    indices: ecb_bone_indices
-                }
             ),
             (
                 FighterVelocity::default(),
                 FighterTranslation(spawn_position),
                 FighterPreviousTranslation(spawn_position),
-                FighterPresentationSnap::default(),
             ),
             visual_root,
             animations,
             attack_scripts,
-            FighterState::Fall(FallState::new(AirborneStateCommon::default())),
+            FighterState::Fall(FallState),
             animation::FighterAnimationFrame::new(animation::AnimKind::Wait, true),
             (
                 baked_animation::FighterBoneMatrices::default(),
@@ -424,46 +302,8 @@ pub fn spawn_fighter(
         .id()
 }
 
-pub fn decay_hitstop(query: Query<(&mut FighterHitstop, &mut FighterHitstopShake)>) {
-    for (mut hitstop, mut hitstop_shake) in query {
+pub fn decay_hitstop(query: Query<&mut FighterHitstop>) {
+    for mut hitstop in query {
         hitstop.remaining_frames = hitstop.remaining_frames.saturating_sub(1);
-        hitstop_shake.remaining_frames = hitstop_shake.remaining_frames.saturating_sub(1);
-    }
-}
-
-pub fn decay_ledge_grab_lockout(query: Query<&mut FighterLedgeInformation>) {
-    for mut lockout in query {
-        lockout.tick();
-    }
-}
-
-pub fn decay_invulnerability(query: Query<&mut FighterInvulnerabilityState>) {
-    for invuln_state in query {
-        let invuln_state = invuln_state.into_inner();
-        let frames_remaining = match invuln_state {
-            FighterInvulnerabilityState::Vulnerable => None,
-            FighterInvulnerabilityState::Invulnerable { frames_remaining } => {
-                if let Some(frames_remaining) = frames_remaining {
-                    *frames_remaining = frames_remaining.saturating_sub(1);
-                    Some(*frames_remaining)
-                } else {
-                    None
-                }
-            },
-            FighterInvulnerabilityState::Intangible { frames_remaining } => {
-                if let Some(frames_remaining) = frames_remaining {
-                    *frames_remaining = frames_remaining.saturating_sub(1);
-                    Some(*frames_remaining)
-                } else {
-                    None
-                }
-            },
-        };
-
-        if let Some(frames_remaining) = frames_remaining {
-            if frames_remaining == 0 {
-                *invuln_state = FighterInvulnerabilityState::Vulnerable;
-            }
-        }
     }
 }

src/fighter/motion.rs

@@ -5,27 +5,23 @@ use bevy::prelude::*;
 use bevy_ggrs::GgrsFrameTiming;
 
 use crate::debug_tools::PresentationMotionMode;
-use crate::fighter::FighterHitstopShake;
-use crate::game_settings::GameSettings;
 use crate::{
-    fighter::{FighterFacingDirection, baked_animation::FixedMat4},
+    fighter::{FighterECB, FighterFacingDirection, baked_animation::FixedMat4},
     math::{int::FGi32, vec::FGVec2, vec3::FGVec3},
 };
 
 #[derive(Component, Clone, Copy, Hash)]
 pub struct FighterPreviousFacingDirection(pub FighterFacingDirection);
 
+#[derive(Component, Clone, Copy, Hash)]
+pub struct Grounded;
+
 #[derive(Component, Deref, DerefMut, Default, Debug, Clone, Copy, Hash)]
 pub struct FighterVelocity(pub FGVec2);
 
 #[derive(Component, Deref, DerefMut, Default, Clone, Copy, Hash)]
 pub struct FighterPreviousTranslation(pub FGVec2);
 
-/// Marks a simulation frame whose position changed discontinuously for
-/// presentation purposes (for example, a landing correction).
-#[derive(Component, Default, Clone, Copy, Hash, Debug, PartialEq, Eq)]
-pub struct FighterPresentationSnap(pub bool);
-
 #[derive(Component, Deref, DerefMut, Default, Clone, Copy, Hash)]
 #[require(FighterPreviousTranslation)]
 pub struct FighterTranslation(pub FGVec2);
@@ -57,84 +53,30 @@ pub fn sample_presentation_translation(
     }
 }
 
-pub fn sample_presentation_translation_with_snap(
-    previous: FighterPreviousTranslation,
-    current: FighterTranslation,
-    overstep_fraction: f32,
-    mode: PresentationMotionMode,
-    snapped: FighterPresentationSnap,
-) -> Vec2 {
-    if snapped.0 {
-        Vec2::new(current.x.to_num(), current.y.to_num())
-    } else {
-        sample_presentation_translation(previous, current, overstep_fraction, mode)
-    }
-}
-
-pub fn clear_fighter_presentation_snaps(mut fighters: Query<&mut FighterPresentationSnap>) {
-    for mut snap in &mut fighters {
-        snap.0 = false;
-    }
-}
-
 pub fn apply_fighter_translation_to_visuals(
     query: Query<(
         &FighterTranslation,
         &FighterPreviousTranslation,
-        &FighterPresentationSnap,
-        &FighterHitstopShake,
+        &FighterECB,
         &mut Transform,
     )>,
     timing: Res<GgrsFrameTiming>,
     debug_settings: Res<crate::debug_tools::DebugSettings>,
-    game_settings: Res<GameSettings>,
 ) {
     let overstep_fraction = timing.overstep_fraction();
-    for (translation, previous_translation, presentation_snap, hitstop_shake, mut transform) in query {
-        let translation = sample_presentation_translation_with_snap(
+    for (translation, previous_translation, ecb, mut transform) in query {
+        let translation = sample_presentation_translation(
             *previous_translation,
             *translation,
             overstep_fraction,
             debug_settings.motion_sampling,
-            *presentation_snap,
         );
+        let bottom = ecb.get_bottom_point();
         transform.translation = Vec3::new(
-            translation.x,
-            translation.y,
+            translation.x + bottom.x.to_num::<f32>(),
+            translation.y + bottom.y.to_num::<f32>(),
             0.0,
         );
-
-        if hitstop_shake.remaining_frames > 0
-            && hitstop_shake.total_frames > 0
-            && !game_settings.fighter_common.visual_shake_table.is_empty()
-        {
-            let total = hitstop_shake.total_frames as f32;
-            let curr = hitstop_shake.remaining_frames as f32;
-            let elapsed = 1.0 - curr / total;
-
-            let access_index = (hitstop_shake.remaining_frames as usize)
-                % game_settings.fighter_common.visual_shake_table.len();
-            let shake_multiplier = match hitstop_shake.role {
-                super::FighterHitstopShakeRole::Attacker => {
-                    game_settings
-                        .fighter_common
-                        .attacker_visual_shake_multiplier
-                }
-                super::FighterHitstopShakeRole::Receiver => 1.0,
-            };
-            let shake_amount: f32 =
-                1.0 - EaseFunction::QuinticIn.sample(elapsed).unwrap_or_default();
-            let shake_amount = game_settings.fighter_common.visual_shake_table[access_index]
-                * shake_amount
-                * shake_multiplier;
-
-            let shake_offset = match hitstop_shake.kind {
-                super::FighterHitstopShakeKind::Horizontal => Vec3::new(shake_amount, 0.0, 0.0),
-                super::FighterHitstopShakeKind::Vertical => Vec3::new(0.0, shake_amount, 0.0),
-            };
-
-            transform.translation += shake_offset;
-        }
     }
 }
 
@@ -143,15 +85,22 @@ pub fn apply_air_motion(
         &FighterVelocity,
         &mut FighterTranslation,
         &mut FighterPreviousTranslation,
+        &mut Transform,
     )>,
     _time: Res<Time<Fixed>>,
 ) {
-    for (velocity, mut translation, mut prev_translation) in fighters {
+    for (velocity, mut translation, mut prev_translation, _transform) in fighters {
         prev_translation.0 = translation.0;
         translation.0 += velocity.0;
     }
 }
 
+pub fn copy_fighter_transform_to_visuals(fighters: Query<(&FighterTranslation, &mut Transform)>) {
+    for (translation, mut transform) in fighters {
+        transform.translation = Vec3::new(translation.x.to_num(), translation.y.to_num(), 0.0);
+    }
+}
+
 pub fn fighter_movement() {}
 
 pub fn snapshot_fighter_motion(
@@ -196,19 +145,6 @@ mod tests {
         assert_eq!(position, Vec2::new(7.0, 14.0));
     }
 
-    #[test]
-    fn presentation_translation_uses_current_sample_after_snap() {
-        let position = sample_presentation_translation_with_snap(
-            FighterPreviousTranslation(FGVec2::new(FGi32::lit("2"), FGi32::lit("4"))),
-            FighterTranslation(FGVec2::new(FGi32::lit("6"), FGi32::lit("12"))),
-            0.25,
-            PresentationMotionMode::Extrapolation,
-            FighterPresentationSnap(true),
-        );
-
-        assert_eq!(position, Vec2::new(6.0, 12.0));
-    }
-
     #[test]
     fn snapshot_fighter_motion_copies_current_world_state() {
         let mut world = World::new();

src/fighter/push.rs

@@ -1,214 +0,0 @@
-//! fighter-to-fighter pushing
-
-use bevy::prelude::*;
-
-use crate::{
-    fighter::{
-        Fighter, FighterFacingDirection, FighterRoster, FighterSurfaceState, FighterTranslation,
-        manifest::FighterManifest,
-    },
-    game_settings::GameSettings,
-    math::int::FGi32,
-    stage::line::{StageCollision, StageLineID, StagePoly},
-};
-
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-struct Pushbox {
-    center: FGi32,
-    radius: FGi32,
-    line_id: StageLineID,
-}
-
-fn can_interact(stage: &StageCollision, first: StageLineID, second: StageLineID) -> bool {
-    if first.polygon != second.polygon {
-        return false;
-    }
-    if first.segment == second.segment {
-        return true;
-    }
-
-    let Some(poly) = stage.stage_polys.get(first.polygon) else {
-        return false;
-    };
-    adjacent_segment(poly, first.segment, second.segment)
-}
-
-fn adjacent_segment(poly: &StagePoly, first: usize, second: usize) -> bool {
-    poly.get_next_segment_index(first) == Some(second)
-        || poly.get_prev_segment_index(first) == Some(second)
-}
-
-fn push_delta(first: Pushbox, second: Pushbox, nudge: FGi32) -> FGi32 {
-    if (first.center - second.center).abs() >= first.radius + second.radius {
-        return FGi32::ZERO;
-    }
-    (first.center - second.center).signum() * nudge
-}
-
-fn calculate_push_deltas(
-    pushboxes: &[Option<Pushbox>],
-    stage: &StageCollision,
-    nudge: FGi32,
-) -> Vec<FGi32> {
-    let mut deltas = vec![FGi32::ZERO; pushboxes.len()];
-    for first in 0..pushboxes.len() {
-        let Some(first_pushbox) = pushboxes[first] else {
-            continue;
-        };
-        for second in 0..pushboxes.len() {
-            if first == second {
-                continue;
-            }
-            let Some(second_pushbox) = pushboxes[second] else {
-                continue;
-            };
-            if can_interact(stage, first_pushbox.line_id, second_pushbox.line_id) {
-                deltas[first] += push_delta(first_pushbox, second_pushbox, nudge);
-            }
-        }
-    }
-    deltas
-}
-
-pub fn apply_grounded_pushes(
-    roster: Res<FighterRoster>,
-    mut fighters: Query<(
-        &Fighter,
-        &mut FighterTranslation,
-        &FighterFacingDirection,
-        &FighterSurfaceState,
-    )>,
-    manifests: Res<Assets<FighterManifest>>,
-    settings: Res<GameSettings>,
-    stage: Res<StageCollision>,
-) {
-    let pushboxes = roster
-        .0
-        .iter()
-        .map(|entity| {
-            let Ok((fighter, translation, facing, surface)) = fighters.get(*entity) else {
-                return None;
-            };
-            let Some(line_id) = surface.line_id() else {
-                return None;
-            };
-            let manifest = manifests.get(&fighter.manifest)?;
-            let attributes = &manifest.attributes;
-            Some(Pushbox {
-                center: translation.x + facing.to_sign() * attributes.pushbox_offset,
-                radius: attributes.pushbox_radius,
-                line_id,
-            })
-        })
-        .collect::<Vec<_>>();
-    let deltas = calculate_push_deltas(
-        &pushboxes,
-        &stage,
-        settings.fighter_common.grounded_push_nudge,
-    );
-
-    for (entity, delta) in roster.0.iter().zip(deltas) {
-        if delta == FGi32::ZERO {
-            continue;
-        }
-        if let Ok((_, mut translation, _, _)) = fighters.get_mut(*entity) {
-            translation.x += delta;
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::math::vec::FGVec2;
-    use crate::stage::line::{StagePolyLineSegmentType, StagePolyType};
-
-    fn stage() -> StageCollision {
-        StageCollision {
-            stage_polys: vec![StagePoly::build(
-                StagePolyType::Platform,
-                &[
-                    (FGVec2::lit("0", "0"), StagePolyLineSegmentType::Floor),
-                    (FGVec2::lit("10", "0"), StagePolyLineSegmentType::Floor),
-                    (FGVec2::lit("20", "0"), StagePolyLineSegmentType::Floor),
-                    (FGVec2::lit("30", "0"), StagePolyLineSegmentType::Floor),
-                ],
-            )],
-            ..StageCollision::default()
-        }
-    }
-
-    fn box_at(x: &str, segment: usize) -> Pushbox {
-        Pushbox {
-            center: FGi32::lit(x),
-            radius: FGi32::lit("1"),
-            line_id: StageLineID {
-                polygon: 0,
-                segment,
-            },
-        }
-    }
-
-    #[test]
-    fn overlapping_pair_gets_opposite_fixed_nudges() {
-        let deltas = calculate_push_deltas(
-            &[Some(box_at("0", 0)), Some(box_at("1", 0))],
-            &stage(),
-            FGi32::lit("0.3"),
-        );
-        assert_eq!(deltas, vec![FGi32::lit("-0.3"), FGi32::lit("0.3")]);
-    }
-
-    #[test]
-    fn touching_pushboxes_do_not_nudge() {
-        let deltas = calculate_push_deltas(
-            &[Some(box_at("0", 0)), Some(box_at("2", 0))],
-            &stage(),
-            FGi32::lit("0.3"),
-        );
-        assert_eq!(deltas, vec![FGi32::ZERO, FGi32::ZERO]);
-    }
-
-    #[test]
-    fn adjacent_segments_can_push_and_unrelated_segments_cannot() {
-        let adjacent = calculate_push_deltas(
-            &[Some(box_at("9.5", 0)), Some(box_at("10", 1))],
-            &stage(),
-            FGi32::lit("0.3"),
-        );
-        assert_eq!(adjacent, vec![FGi32::lit("-0.3"), FGi32::lit("0.3")]);
-
-        let unrelated = calculate_push_deltas(
-            &[Some(box_at("1", 0)), Some(box_at("2", 2))],
-            &stage(),
-            FGi32::lit("0.3"),
-        );
-        assert_eq!(unrelated, vec![FGi32::ZERO, FGi32::ZERO]);
-    }
-
-    #[test]
-    fn multiple_overlaps_accumulate() {
-        let deltas = calculate_push_deltas(
-            &[
-                Some(box_at("0", 0)),
-                Some(box_at("0.5", 0)),
-                Some(box_at("1", 0)),
-            ],
-            &stage(),
-            FGi32::lit("0.3"),
-        );
-        assert_eq!(
-            deltas,
-            vec![FGi32::lit("-0.6"), FGi32::ZERO, FGi32::lit("0.6")]
-        );
-    }
-
-    #[test]
-    fn system_parameters_initialize_without_query_conflicts() {
-        let mut world = World::new();
-        let mut schedule = Schedule::default();
-        schedule.add_systems(apply_grounded_pushes);
-
-        schedule.initialize(&mut world).unwrap();
-    }
-}

src/fighter/state/air.rs

@@ -1,48 +1,8 @@
-use crate::fighter::state::jump::{self};
-use crate::fighter::state::land::{LandingState, LandingType};
-use crate::fighter::state::ledge_grab::LedgeGrabState;
-use crate::fighter::state::{
-    CollisionContext, FighterState, InterruptContext, air_attack, air_dodge,
-};
 use crate::fighter::*;
-use crate::input::FighterCommands;
 
-#[derive(Default, Debug, Clone, Copy, Hash)]
-pub struct AirborneStateCommon {
-    pub is_fast_falling: bool,
-}
-
-pub fn process_fast_fall(
-    airborne_state_common: &mut AirborneStateCommon,
-    input: &mut FighterInput,
-    velocity: &mut FighterVelocity,
-    attributes: &FighterAttributes,
-) {
-    if velocity.y.is_negative() {
-        if input.has_command(FighterCommands::SmashMoveDown) {
-            airborne_state_common.is_fast_falling = true;
-        }
-        input.clear_command(FighterCommands::SmashMoveDown);
-    }
-
-    if airborne_state_common.is_fast_falling {
-        velocity.y = -attributes.fast_fall_speed;
-    }
-}
-
-pub fn integrate_gravity(
-    velocity: &mut FighterVelocity,
-    attributes: &FighterAttributes,
-    fast_fall: bool,
-) {
+pub fn integrate_gravity(velocity: &mut FighterVelocity, attributes: &FighterAttributes) {
     velocity.y -= attributes.gravity;
-
-    let terminal_vel = if fast_fall {
-        -attributes.fast_fall_speed
-    } else {
-        -attributes.terminal_velocity
-    };
-    velocity.y = velocity.y.max(terminal_vel);
+    velocity.y = velocity.y.max(-attributes.terminal_velocity);
 }
 
 pub fn apply_air_drift(
@@ -93,58 +53,6 @@ pub fn apply_air_motion(
     translation.0 += velocity.0;
 }
 
-pub fn update_standard_motion(
-    ctx: &mut crate::fighter::state::UpdateContext,
-    airborne_common: &mut AirborneStateCommon,
-) {
-    process_fast_fall(
-        airborne_common,
-        ctx.input,
-        &mut ctx.velocity,
-        ctx.fighter_attributes,
-    );
-    integrate_gravity(
-        ctx.velocity,
-        ctx.fighter_attributes,
-        airborne_common.is_fast_falling,
-    );
-    apply_air_drift(ctx.velocity, ctx.fighter_attributes, ctx.input);
-    apply_air_motion(ctx.velocity, ctx.translation, ctx.prev_translation);
-}
-
-pub fn air_interrupts_common(
-    ctx: &mut InterruptContext,
-    airborne_state_common: &AirborneStateCommon,
-) -> Option<FighterState> {
-    jump::check_input_double_jump(ctx).or_else(|| {
-        air_dodge::check_input(ctx)
-            .or_else(|| air_attack::check_interrupt(ctx, airborne_state_common))
-    })
-}
-
-pub fn collision_interrupt(
-    ctx: &mut CollisionContext,
-    landing_type: LandingType,
-    can_ignore_soft_platforms: bool,
-) -> Option<FighterState> {
-    if ctx.velocity.y <= FGi32::ZERO {
-        if let Some(ledge_result) = ctx.air_collide_with_ledges() {
-            return Some(FighterState::LedgeGrab(LedgeGrabState::new(ledge_result.ledge)));
-        }
-    }
-
-    let res = ctx.air_collide_with_stage(can_ignore_soft_platforms)?;
-    let diff = res.hit_position - ctx.translation.0;
-    ctx.ecb.bottom -= diff;
-    ctx.ecb.top -= diff;
-    ctx.ecb.left -= diff;
-    ctx.ecb.right -= diff;
-    ctx.translation.0 = res.hit_position;
-    ctx.presentation_snap.0 = true;
-    ctx.surface.land(res.line_id, ctx.ledge_info);
-    Some(FighterState::Land(LandingState::create(landing_type)))
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -155,8 +63,6 @@ mod tests {
 
     fn test_attributes() -> FighterAttributes {
         FighterAttributes {
-            pushbox_offset: FGi32::ZERO,
-            pushbox_radius: FGi32::ONE,
             base_walk_accel: FGi32::ZERO,
             stick_walk_accel: FGi32::ZERO,
             max_walk_vel: FGi32::ZERO,
@@ -180,16 +86,12 @@ mod tests {
             air_drift_max: FGi32::lit("1.2"),
             ground_friction: FGi32::ZERO,
             terminal_velocity: FGi32::ZERO,
-            fast_fall_speed: FGi32::ZERO,
             gravity: FGi32::ZERO,
             weight: FGi32::lit("1"),
             air_friction: FGi32::lit("0.001"),
             air_dodge_duration: 0,
             air_dodge_velocity: FGi32::ZERO,
             air_dodge_decay: FGi32::ZERO,
-            air_dodge_intangible_duration: 29,
-            air_dodge_intangible_start: 4,
-            dash_attack_cancel_window: 3,
         }
     }
 

src/fighter/state/air_attack.rs

@@ -1,168 +0,0 @@
-use bevy::log::error;
-
-use crate::fighter::{
-    attack::{AttackKind, FighterAttackScriptAssets, update_active_attack}, state::{
-        CollisionContext, EnterContext, ExitContext, FighterState, FighterStateImpl, InterruptContext, UpdateContext, air::{self, AirborneStateCommon}, air_attack, fall::FallState, jump,
-    },
-};
-
-#[derive(Clone, Debug, Hash)]
-pub struct AirAttackState {
-    pub attack_kind: AttackKind,
-    pub airborne_state_common: AirborneStateCommon,
-    pub is_in_autocancel_window: bool,
-}
-
-impl FighterStateImpl for AirAttackState {
-    const NAME: &'static str = "AirAttack";
-
-    fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        let animation_frame = state_context.get_current_animation_frame();
-        let script = state_context
-            .attack_scripts
-            .get(&state_context.attack_script_assets.scripts[&self.attack_kind]);
-        
-        if let Some(script) = script {
-            if let Some(iasa_frame) = script.iasa_frame {
-                if animation_frame >= iasa_frame {
-                    let new_state = jump::check_input_double_jump(state_context).or_else(|| air_attack::check_interrupt(state_context, &self.airborne_state_common));
-                    if let Some(new_state) = new_state {
-                        return Some(new_state);
-                    }
-                }
-            }
-        }
-
-        if state_context.is_current_animation_finished() {
-            Some(FighterState::Fall(FallState::new(
-                self.airborne_state_common,
-            )))
-        } else {
-            None
-        }
-    }
-
-    fn update(&mut self, state_context: &mut UpdateContext) {
-        let animation_frame = state_context.get_current_animation_frame();
-        let script = state_context
-            .attack_scripts
-            .get(&state_context.attack_script_assets.scripts[&self.attack_kind]);
-        if let Some(script) = script {
-            update_active_attack(
-                script,
-                state_context
-                    .hitboxes
-                    .0
-                    .as_mut()
-                    .expect("ground attack must have active hitboxes"),
-                animation_frame,
-            );
-            if let Some((autocancel_start, autocancel_end)) = script.wont_autocancel_window {
-                self.is_in_autocancel_window =
-                    animation_frame < autocancel_start || animation_frame > autocancel_end;
-            }
-        }
-
-        air::update_standard_motion(state_context, &mut self.airborne_state_common);
-    }
-
-    fn on_enter(&mut self, state_context: &mut EnterContext) {
-        state_context
-            .input
-            .consume_command(crate::input::FighterCommands::Attack);
-        state_context.play_animation(self.attack_kind.get_animation(), false);
-        let script = state_context.attack_script_assets.scripts[&self.attack_kind].clone();
-        state_context.hitboxes.0 = Some(crate::fighter::FighterActiveAttack {
-            kind: self.attack_kind,
-            script,
-            active_hitboxes: Vec::new(),
-            solved_hitboxes: Vec::new(),
-            hit_groups: Vec::new(),
-            stalled: false,
-        });
-    }
-
-    fn on_exit(&mut self, state_context: &mut ExitContext) {
-        state_context.hitboxes.0 = None;
-    }
-
-    fn check_collision_interrupt(
-        &mut self,
-        state_context: &mut CollisionContext,
-    ) -> Option<FighterState> {
-        let coll_interrupt = air::collision_interrupt(
-            state_context,
-            crate::fighter::state::land::LandingType::Normal,
-            false,
-        );
-
-        coll_interrupt.map(|state| {
-            if self.is_in_autocancel_window {
-                state
-            } else {
-                // TODO: Implement proper landing lag
-                state
-            }
-        })
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        false
-    }
-}
-
-#[derive(thiserror::Error, Debug)]
-pub enum AirAttackStateCreateError {
-    #[error("Attack script: {attack:?} not found")]
-    AttackScriptNotFound { attack: AttackKind },
-}
-
-impl AirAttackState {
-    pub fn create(
-        attack_kind: AttackKind,
-        attack_script_assets: &FighterAttackScriptAssets,
-        airborne_state_common: &AirborneStateCommon,
-    ) -> Result<Self, AirAttackStateCreateError> {
-        if attack_script_assets.scripts.contains_key(&attack_kind) {
-            Ok(AirAttackState {
-                airborne_state_common: airborne_state_common.clone(),
-                attack_kind,
-                is_in_autocancel_window: false,
-            })
-        } else {
-            Err(AirAttackStateCreateError::AttackScriptNotFound {
-                attack: attack_kind,
-            })
-        }
-    }
-}
-
-pub fn check_interrupt(
-    state_context: &InterruptContext,
-    airborne_state_common: &AirborneStateCommon,
-) -> Option<FighterState> {
-    if state_context
-        .input
-        .has_command(crate::input::FighterCommands::Attack)
-    {
-        let attack_kind = state_context
-            .input
-            .get_attack_command_type()
-            .to_attack_kind_airborne(state_context.facing_direction);
-        let state = AirAttackState::create(
-            attack_kind,
-            state_context.attack_script_assets,
-            airborne_state_common,
-        );
-
-        match state {
-            Ok(state) => Some(FighterState::AirAttack(state)),
-            Err(create_error) => {
-                error!("{}", create_error);
-                None
-            }
-        }
-    } else {
-        None
-    }
-}

src/fighter/state/air_dodge.rs

@@ -1,13 +1,12 @@
 use crate::{
     fighter::{
-        FighterInvulnerabilityState,
         animation::AnimKind,
         state::{
             CollisionContext, EnterContext, FighterState, FighterStateImpl, InterruptContext,
-            UpdateContext,
-            air::{self, AirborneStateCommon},
+            UpdateContext, air,
             fall::FallState,
-            land::LandingType,
+            ground::GroundedStateCommon,
+            land::{LandingState, LandingType},
         },
     },
     input,
@@ -24,21 +23,13 @@ impl FighterStateImpl for AirDodgeState {
 
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
         if state_context.is_current_animation_finished() {
-            Some(FighterState::Fall(FallState::new(
-                AirborneStateCommon::default(),
-            )))
+            Some(FighterState::Fall(FallState))
         } else {
             None
         }
     }
 
     fn update(&mut self, state_context: &mut UpdateContext) {
-        let airdodge_intangible_end = state_context.fighter_attributes.air_dodge_intangible_start + state_context.fighter_attributes.air_dodge_intangible_duration;
-        if state_context.animation_frame == state_context.fighter_attributes.air_dodge_intangible_start {
-            *state_context.vulnerability = FighterInvulnerabilityState::Intangible { frames_remaining: Some(state_context.fighter_attributes.air_dodge_intangible_duration) };
-        } else if state_context.animation_frame >= airdodge_intangible_end {
-            *state_context.vulnerability = FighterInvulnerabilityState::Vulnerable;
-        }
         state_context.velocity.0 *= state_context.fighter_attributes.air_dodge_decay;
 
         air::apply_air_motion(
@@ -52,52 +43,34 @@ impl FighterStateImpl for AirDodgeState {
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        air::collision_interrupt(state_context, LandingType::Special, false)
+        if let Some(res) = state_context.air_collide_with_stage() {
+            // Adjust translation
+            state_context.translation.0 = res.hit_position - state_context.ecb.get_bottom_point();
+            let grounded_common = GroundedStateCommon {
+                current_line_id: res.line_id,
+            };
+            Some(FighterState::Land(LandingState {
+                grounded_common,
+                landing_type: LandingType::Special,
+            }))
+        } else {
+            None
+        }
     }
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {
         state_context.play_animation(AnimKind::AirDodge, false);
 
-        state_context
-            .input
-            .clear_command(input::FighterCommands::Shield);
-        state_context
-            .input
-            .clear_command(input::FighterCommands::GuardHold);
-
         state_context.velocity.0 =
             self.direction * state_context.fighter_attributes.air_dodge_velocity;
     }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        false
-    }
-
-    fn surface_policy(&self) -> super::SurfacePolicy {
-        super::SurfacePolicy::Airborne(crate::fighter::surface::EcbLockPolicy::StartOnDetach)
-    }
-
-    fn on_exit(&mut self, state_context: &mut super::ExitContext) {
-        *state_context.vulnerability = FighterInvulnerabilityState::Vulnerable;
-    }
-
-    fn name(&self) -> String {
-        Self::NAME.to_owned()
-    }
 }
 
 pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
     state_context
         .input
         .has_command(input::FighterCommands::Shield)
-        .then_some(())
-        .or_else(|| {
-            state_context
-                .input
-                .has_command(input::FighterCommands::GuardHold)
-                .then_some(())
-        })
-        .map(|_| {
+        .then(|| {
             FighterState::AirDodge(AirDodgeState {
                 direction: state_context
                     .input

src/fighter/state/angel.rs

@@ -1,54 +0,0 @@
-use crate::{fighter::{FighterInvulnerabilityState, animation::AnimKind, state::{FighterState, FighterStateImpl, air::AirborneStateCommon, fall::FallState}}, math::vec::FGVec2};
-
-#[derive(Debug, Clone, Hash)]
-pub struct AngelState {
-    frames_remaining: u32
-}
-
-impl AngelState {
-    pub fn new(duration: u32) -> Self {
-        Self {
-            frames_remaining: duration
-        }
-    }
-}
-
-impl FighterStateImpl for AngelState {
-    const NAME: &'static str = "Angel";
-
-    fn check_interrupt(&self, state_context: &mut super::InterruptContext) -> Option<super::FighterState> {
-        let moved_sideways = !state_context.input.get_last_frame().movement.x.is_zero();
-        let moved_vertically = !state_context.input.get_last_frame().movement.y.is_zero();
-
-        if self.frames_remaining == 0 || moved_sideways || moved_vertically {
-            Some(FighterState::Fall(FallState::new(AirborneStateCommon::default())))
-        } else {
-            None
-        }
-    }
-
-    fn update(&mut self, _state_context: &mut super::UpdateContext) {
-        self.frames_remaining = self.frames_remaining.saturating_sub(1);
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        false
-    }
-    
-    fn on_enter(&mut self, state_context: &mut super::EnterContext) {
-        state_context.play_animation(AnimKind::Wait, true);
-        state_context.velocity.0 = FGVec2::ZERO;
-        *state_context.vulnerability = FighterInvulnerabilityState::Invulnerable { frames_remaining: Some(state_context.game_settings.fighter_common.angel_platform_invulnerability_duration) };
-    }
-    
-    fn check_collision_interrupt(
-        &mut self,
-        _state_context: &mut super::CollisionContext,
-    ) -> Option<super::FighterState> {
-        None
-    }
-    
-    fn surface_policy(&self) -> super::SurfacePolicy {
-        super::SurfacePolicy::Airborne(crate::fighter::surface::EcbLockPolicy::Clear)
-    }
-}

src/fighter/state/crouch.rs

@@ -1,169 +0,0 @@
-use super::{
-    CollisionContext, EnterContext, FighterStateImpl, InterruptContext, UpdateContext, ground,
-};
-use crate::fighter::FighterSurfaceState;
-use crate::fighter::animation::AnimKind;
-use crate::fighter::state::air::AirborneStateCommon;
-use crate::fighter::state::ground::{
-    grounded_movement_common_interrupts, grounded_movement_standstill_common_interrupts,
-};
-use crate::fighter::state::platform_pass::PlatformPassState;
-use crate::fighter::state::{FighterState, dash, ground_attack, turn, walk};
-use crate::input::FighterCommands;
-use crate::stage::line::StagePolyType;
-
-#[derive(Debug, Clone, Hash)]
-pub enum CrouchSubState {
-    Entering { pass_queued: bool },
-    Idle,
-    Exiting,
-}
-
-#[derive(Debug, Clone, Hash)]
-pub struct CrouchState {
-    sub_state: CrouchSubState,
-}
-
-pub fn crouch_idle_interrupts(state_context: &InterruptContext) -> Option<FighterState> {
-    if let Some(state) = ground_attack::check_interrupt(state_context) {
-        Some(state)
-    } else if let Some(state) = dash::check_input(state_context) {
-        Some(state)
-    } else if let Some(state) = turn::check_input(state_context) {
-        Some(state)
-    } else if let Some(state) = walk::check_input(state_context) {
-        Some(state)
-    } else {
-        None
-    }
-}
-
-pub fn crouch_entering_interrupts(state_context: &InterruptContext) -> Option<FighterState> {
-    if let Some(state) = ground_attack::check_interrupt(state_context) {
-        Some(state)
-    } else {
-        None
-    }
-}
-
-impl FighterStateImpl for CrouchState {
-    const NAME: &'static str = "Crouch";
-    fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        if let Some(state) = grounded_movement_common_interrupts(state_context) {
-            return Some(state);
-        }
-
-        match self.sub_state {
-            CrouchSubState::Entering { pass_queued } => {
-                // pass
-                if let FighterSurfaceState::Grounded { line_id } = state_context.surface {
-                    if let Some(stage_poly) = state_context
-                        .stage_collision
-                        .stage_polys
-                        .get(line_id.polygon)
-                    {
-                        let is_inputting_crouch = -state_context.game_settings.input_common.run_stick_threshold > state_context.input.get_last_frame().movement.y;
-                        let is_on_a_soft_platform = matches!(stage_poly.poly_type, StagePolyType::Platform);
-                        if pass_queued && is_inputting_crouch && is_on_a_soft_platform 
-                        {
-                            return Some(FighterState::PlatformPass(PlatformPassState::new(
-                                AirborneStateCommon::default(),
-                                line_id.polygon,
-                            )));
-                        }
-                    }
-                }
-
-                // While entering the crouch animation we do not allow movement inputs, but we do allow attacks and jumps
-                if state_context.is_current_animation_finished() {
-                    return Some(FighterState::Crouch(CrouchState {
-                        sub_state: CrouchSubState::Idle,
-                    }));
-                } else {
-                    return crouch_entering_interrupts(state_context);
-                }
-            }
-            CrouchSubState::Idle => {
-                if state_context.input.get_last_frame().movement.y
-                    > -state_context.game_settings.input_common.run_stick_threshold
-                {
-                    return Some(FighterState::Crouch(CrouchState {
-                        sub_state: CrouchSubState::Exiting,
-                    }));
-                } else {
-                    return crouch_idle_interrupts(state_context);
-                }
-            }
-            CrouchSubState::Exiting => {
-                if state_context.is_current_animation_finished() {
-                    return grounded_movement_standstill_common_interrupts(state_context);
-                } else {
-                    return crouch_idle_interrupts(state_context);
-                }
-            }
-        }
-    }
-
-    fn on_enter(&mut self, state_context: &mut EnterContext) {
-        match self.sub_state {
-            CrouchSubState::Entering { .. } => {
-                state_context.play_animation(AnimKind::CrouchEnter, false);
-            }
-            CrouchSubState::Idle => {
-                state_context.play_animation(AnimKind::CrouchIdle, true);
-            }
-            CrouchSubState::Exiting => {
-                state_context.play_animation(AnimKind::CrouchExit, false);
-            }
-        }
-    }
-
-    fn update(&mut self, state_context: &mut UpdateContext) {
-        if let CrouchSubState::Entering {
-            pass_queued,
-        } = &mut self.sub_state
-        {
-            if state_context
-                .input
-                .has_command(FighterCommands::SmashMoveDown)
-            {
-                state_context
-                    .input
-                    .clear_command(FighterCommands::SmashMoveDown);
-                *pass_queued = true;
-            }
-        }
-        ground::update_friction_motion(state_context);
-    }
-
-    fn check_collision_interrupt(
-        &mut self,
-        state_context: &mut CollisionContext,
-    ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, false)
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
-    }
-}
-
-impl CrouchState {
-    pub fn is_crouch_cancelling(&self) -> bool {
-        match self.sub_state {
-            CrouchSubState::Entering { .. } | CrouchSubState::Idle => true,
-            CrouchSubState::Exiting => false,
-        }
-    }
-}
-
-pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
-    let input_frame = state_context.input.get_last_frame();
-
-    if input_frame.movement.y <= -state_context.game_settings.input_common.run_stick_threshold {
-        return Some(FighterState::Crouch(CrouchState {
-            sub_state: CrouchSubState::Entering { pass_queued: false },
-        }));
-    }
-    None
-}

src/fighter/state/dash.rs

@@ -4,54 +4,54 @@ use super::{
 };
 use crate::fighter::FighterFacingDirection;
 use crate::fighter::animation::AnimKind;
-use crate::fighter::state::{FighterState, ground_attack};
+use crate::fighter::state::FighterState;
+use crate::fighter::state::fall::FallState;
+use crate::fighter::state::ground::{GroundedMotionResult, GroundedStateCommon};
 use crate::input::FighterCommands::{SmashMoveLeft, SmashMoveRight};
 
 #[derive(Debug, Clone, Hash)]
 pub struct DashState {
     direction: FighterFacingDirection,
+    pub ground_common: GroundedStateCommon,
 }
 
 impl DashState {
-    pub fn new(direction: FighterFacingDirection) -> Self {
-        Self { direction }
+    pub fn new(direction: FighterFacingDirection, ground_common: GroundedStateCommon) -> Self {
+        Self {
+            direction,
+            ground_common,
+        }
     }
 }
 
 impl FighterStateImpl for DashState {
     const NAME: &'static str = "Dash";
     fn check_interrupt(&self, ctx: &mut InterruptContext) -> Option<FighterState> {
+        let ground = &self.ground_common;
         let attributes = ctx.fighter_attributes;
 
-        if ctx.get_current_animation_frame() <= 2 || ctx.input.get_last_frame().movement.x.signum() != self.direction.to_sign() {
-            if let Some(state) = ground_attack::check_interrupt(ctx) {
-                return Some(state);
-            }
-        } else {
-            if let Some(state) = ground_attack::check_interrupt_dash_attack(ctx) {
-                return Some(state);
-            }
-        }
-
         // A reverse dash can interrupt before IASA
         if let Some(direction) =
             check_smash_input_with_dir(ctx).filter(|direction| *direction != self.direction)
         {
-            return Some(FighterState::Dash(DashState::new(direction)));
+            return Some(FighterState::Dash(DashState::new(
+                direction,
+                ground.clone(),
+            )));
         }
 
-        if let Some(state) = ground::grounded_movement_common_interrupts(ctx) {
+        if let Some(state) = ground::grounded_movement_common_interrupts(ctx, ground) {
             return Some(state);
         }
 
         if ctx.is_current_animation_finished() {
-            return run::check_input(ctx)
-                .or_else(|| walk::check_input(ctx))
-                .or_else(|| wait::check_input(ctx));
+            return run::check_input(ctx, ground)
+                .or_else(|| walk::check_input(ctx, ground))
+                .or_else(|| wait::check_input(ctx, ground));
         }
 
         if ctx.get_current_animation_frame() > attributes.dash_acceleration_duration {
-            return run::check_input(ctx);
+            return run::check_input(ctx, ground);
         }
 
         None
@@ -99,6 +99,7 @@ impl FighterStateImpl for DashState {
         ground::apply_grounded_motion(
             state_context.velocity,
             state_context.translation,
+            state_context.prev_translation,
         );
     }
 
@@ -106,11 +107,13 @@ impl FighterStateImpl for DashState {
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, true)
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
+        if let GroundedMotionResult::InAir =
+            ground::collide_with_stage_grounded(state_context, &mut self.ground_common, true)
+        {
+            Some(FighterState::Fall(FallState))
+        } else {
+            None
+        }
     }
 }
 
@@ -124,6 +127,10 @@ fn check_smash_input_with_dir(state_context: &InterruptContext) -> Option<Fighte
     }
 }
 
-pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
-    check_smash_input_with_dir(state_context).map(|dir| FighterState::Dash(DashState::new(dir)))
+pub fn check_input(
+    state_context: &InterruptContext,
+    ground_common: &GroundedStateCommon,
+) -> Option<FighterState> {
+    check_smash_input_with_dir(state_context)
+        .map(|dir| FighterState::Dash(DashState::new(dir, ground_common.clone())))
 }

src/fighter/state/fall.rs

@@ -1,55 +1,61 @@
 use super::{CollisionContext, EnterContext, FighterStateImpl, InterruptContext, UpdateContext};
 use crate::fighter::animation::AnimKind;
-use crate::fighter::state::air::AirborneStateCommon;
-use crate::fighter::state::{FighterState, air, air_attack, jump};
+use crate::fighter::state::ground::GroundedStateCommon;
+use crate::fighter::state::land::{LandingState, LandingType};
+use crate::fighter::state::{FighterState, air, jump};
 
-#[derive(Debug, Clone, Copy, Hash, Default)]
-pub struct FallState {
-    airborne_state_common: AirborneStateCommon
-}
-
-impl FallState {
-    pub fn new(airborne_state_common: AirborneStateCommon) -> Self {
-        Self {
-            airborne_state_common
-        }
-    }
-}
+#[derive(Debug, Clone, Copy, Hash)]
+pub struct FallState;
 
 impl FighterStateImpl for FallState {
     const NAME: &'static str = "Fall";
-    
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        jump::check_input_double_jump(state_context).or_else(|| air_attack::check_interrupt(state_context, &self.airborne_state_common))
+        jump::check_input_double_jump(state_context)
     }
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {
         state_context.play_animation(AnimKind::Fall, true);
-        state_context.velocity.x = state_context.velocity.x.clamp(-state_context.fighter_attributes.air_drift_max, state_context.fighter_attributes.air_drift_max);
     }
 
     fn update(&mut self, state_context: &mut UpdateContext) {
-        air::update_standard_motion(state_context, &mut self.airborne_state_common);
+        air::integrate_gravity(state_context.velocity, state_context.fighter_attributes);
+        air::apply_air_drift(
+            state_context.velocity,
+            state_context.fighter_attributes,
+            state_context.input,
+        );
+        air::apply_air_motion(
+            state_context.velocity,
+            state_context.translation,
+            state_context.prev_translation,
+        );
     }
 
     fn check_collision_interrupt(
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        air::collision_interrupt(
-            state_context,
-            crate::fighter::state::land::LandingType::Normal,
-            true,
-        )
-    }
-    
-    fn is_visually_grounded<'a>(
-        &'a self,
-    ) -> bool {
-        false
-    }
-
-    fn surface_policy(&self) -> super::SurfacePolicy {
-        super::SurfacePolicy::Airborne(crate::fighter::surface::EcbLockPolicy::StartOnDetach)
+        if let Some(res) = state_context.air_collide_with_stage() {
+            // Adjust translation
+            state_context.translation.0 = res.hit_position - state_context.ecb.get_bottom_point();
+            let grounded_common = GroundedStateCommon {
+                current_line_id: res.line_id,
+            };
+            Some(FighterState::Land(LandingState::create(
+                grounded_common,
+                LandingType::Normal,
+            )))
+        } else {
+            None
+        }
     }
 }
+
+pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
+    let input_frame = state_context.input.get_last_frame();
+
+    if input_frame.movement.x.abs() < state_context.game_settings.input_common.stick_deadzone {
+        return Some(FighterState::Fall(FallState));
+    }
+    None
+}

src/fighter/state/ground.rs

@@ -2,19 +2,24 @@
 //! ECS types so it stays cheap to reason about and to unit-test — it has to be
 //! bit-for-bit deterministic for rollback.
 
-use crate::fighter::state::air_dodge::AirDodgeState;
 use crate::fighter::state::{
-    CollisionContext, FighterState, InterruptContext, air, crouch, dash, fall, ground_attack, turn, wait, walk,
+    CollisionContext, FighterState, InterruptContext, dash, ground_attack, turn, wait, walk,
 };
 use crate::fighter::{
-    FighterAttributes, FighterTranslation, FighterVelocity,
+    FighterAttributes, FighterPreviousTranslation, FighterTranslation, FighterVelocity,
 };
 use crate::game_settings::GameSettings;
-use crate::input::FighterInput;
 use crate::math::int::{FGWide, FGi32};
 use crate::math::vec::FGVec2;
 use crate::stage::line::{StageLineID, StagePoly, StagePolyLineSegment, StagePolyLineSegmentType};
 
+use bevy::prelude::*;
+
+#[derive(Reflect, Hash, Clone, Debug)]
+pub struct GroundedStateCommon {
+    pub current_line_id: StageLineID,
+}
+
 pub fn apply_grounded_friction(friction: FGi32, ground_vel: FGi32) -> FGi32 {
     if friction.abs() > ground_vel.abs() {
         -ground_vel
@@ -151,46 +156,31 @@ fn resolve_grounded_position(
 pub fn apply_grounded_motion(
     velocity: &FighterVelocity,
     translation: &mut FighterTranslation,
+    prev_translation: &mut FighterPreviousTranslation,
 ) {
     // Vertical velocity should be 0 on the ground
+    prev_translation.0 = translation.0;
     translation.0 += FGVec2::new(velocity.0.x, FGi32::ZERO);
 }
 
-pub fn update_friction_motion(ctx: &mut crate::fighter::state::UpdateContext) {
-    let friction = if ctx.velocity.x.abs() > ctx.fighter_attributes.max_walk_vel {
-        ctx.fighter_attributes.ground_friction
-            * ctx
-                .game_settings
-                .fighter_common
-                .ground_friction_over_walk_speed_multiplier
-    } else {
-        ctx.fighter_attributes.ground_friction
-    };
-
-    let ground_velocity = ctx.velocity.x;
-    ctx.velocity.x += apply_grounded_friction(friction, ground_velocity);
-    apply_grounded_motion(ctx.velocity, ctx.translation);
-}
-
 pub fn collide_with_stage_grounded(
     state_context: &mut CollisionContext,
+    ground_common: &mut GroundedStateCommon,
     can_walk_off: bool,
 ) -> GroundedMotionResult {
     let translation = &mut state_context.translation;
-    let ecb = &state_context.ecb;
+    let ecb = state_context.ecb;
     let stage_collision = state_context.stage_collision;
 
-    let Some(current_line_id) = state_context.surface.line_id() else {
-        return GroundedMotionResult::InAir;
-    };
-
-    let stage_poly = stage_collision.stage_polys.get(current_line_id.polygon);
+    let stage_poly = stage_collision
+        .stage_polys
+        .get(ground_common.current_line_id.polygon);
 
     if let Some(stage_poly) = stage_poly {
         let ecb_bottom_pos = translation.0 + ecb.get_bottom_point();
         match resolve_grounded_position(
             stage_poly,
-            current_line_id.segment,
+            ground_common.current_line_id.segment,
             ecb_bottom_pos,
             can_walk_off,
         ) {
@@ -210,46 +200,20 @@ pub fn collide_with_stage_grounded(
                             .0
                             .project_onto_normalized(current_segment.normal)
                 };
-                state_context.surface.land(StageLineID {
-                    polygon: current_line_id.polygon,
-                    segment: segment_idx,
-                }, state_context.ledge_info);
+                ground_common.current_line_id.segment = segment_idx;
                 GroundedMotionResult::InGround
             }
-            GroundedPositionResult::InAir => {
-                state_context.surface.apply_airborne_policy(
-                    crate::fighter::surface::EcbLockPolicy::StartOnDetach,
-                    state_context.leave_ground_ecb_lock_duration,
-                );
-                GroundedMotionResult::InAir
-            }
+            GroundedPositionResult::InAir => GroundedMotionResult::InAir,
         }
     } else {
-        state_context.surface.apply_airborne_policy(
-            crate::fighter::surface::EcbLockPolicy::StartOnDetach,
-            state_context.leave_ground_ecb_lock_duration,
-        );
         GroundedMotionResult::InAir
     }
 }
 
-pub fn collision_interrupt(ctx: &mut CollisionContext, can_walk_off: bool) -> Option<FighterState> {
-    match collide_with_stage_grounded(ctx, can_walk_off) {
-        GroundedMotionResult::InGround => None,
-        GroundedMotionResult::InAir => Some(FighterState::Fall(fall::FallState::new(
-            air::AirborneStateCommon::default(),
-        ))),
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::fighter::ecb::FighterPreviousECB;
-    use crate::fighter::{FighterECB, FighterLedgeInformation, FighterPreviousTranslation, FighterSurfaceState};
-    use crate::math::rect::FGRect;
-use crate::stage::line::StagePolyType;
-    use crate::input::FighterInput;
+    use crate::stage::line::StagePolyType;
 
     fn two_segment_floor() -> StagePoly {
         StagePoly::build(
@@ -355,166 +319,30 @@ use crate::stage::line::StagePolyType;
             GroundedPositionResult::InAir
         ));
     }
-
-    #[test]
-    fn grounded_collision_updates_surface_segment() {
-        let stage_collision = crate::stage::line::StageCollision {
-            stage_polys: vec![two_segment_floor()],
-            ..crate::stage::line::StageCollision::default()
-        };
-        let mut surface = FighterSurfaceState::Grounded {
-            line_id: StageLineID {
-                polygon: 0,
-                segment: 0,
-            },
-        };
-        let mut translation = FighterTranslation(FGVec2::lit("11", "0"));
-        let previous_translation = FighterPreviousTranslation(translation.0);
-        let mut velocity = FighterVelocity::default();
-        let mut ledge_info = FighterLedgeInformation::default();
-        let mut ecb = FighterECB {
-            bottom: FGVec2::lit("0.0", "-0.5"),
-            top: FGVec2::lit("0.0", "0.5"),
-            left: FGVec2::lit("-0.5", "0.0"),
-            right: FGVec2::lit("0.5", "0.0"),
-        };
-        let previous_ecb = FighterPreviousECB::from(ecb);
-        let mut presentation_snap = crate::fighter::FighterPresentationSnap::default();
-        let mut context = CollisionContext {
-            translation: &mut translation,
-            prev_translation: &previous_translation,
-            input: &FighterInput::default(),
-            velocity: &mut velocity,
-            surface: &mut surface,
-            ecb: &mut ecb,
-            ledge_info: &mut ledge_info,
-            prev_ecb: &previous_ecb,
-            stage_collision: &stage_collision,
-            leave_ground_ecb_lock_duration: 10,
-            presentation_snap: &mut presentation_snap,
-            downward_stick_threshold: FGi32::ONE,
-            fighter_ledge_collision_box: FGRect {
-                origin: FGVec2::ZERO,
-                end: FGVec2::ZERO,
-            },
-        };
-
-        assert!(matches!(
-            collide_with_stage_grounded(&mut context, true),
-            GroundedMotionResult::InGround
-        ));
-        assert_eq!(
-            surface.line_id(),
-            Some(StageLineID {
-                polygon: 0,
-                segment: 1,
-            })
-        );
-    }
-
-    #[test]
-    fn walking_off_edge_clears_surface_contact() {
-        let stage_collision = crate::stage::line::StageCollision {
-            stage_polys: vec![StagePoly::build(
-                StagePolyType::Platform,
-                &[
-                    (FGVec2::lit("0", "0"), StagePolyLineSegmentType::Floor),
-                    (FGVec2::lit("10", "0"), StagePolyLineSegmentType::Floor),
-                ],
-            )],
-            ..crate::stage::line::StageCollision::default()
-        };
-        let mut surface = FighterSurfaceState::Grounded {
-            line_id: StageLineID {
-                polygon: 0,
-                segment: 0,
-            },
-        };
-        let mut translation = FighterTranslation(FGVec2::lit("11", "0"));
-        let previous_translation = FighterPreviousTranslation(translation.0);
-        let mut velocity = FighterVelocity::default();
-        let mut ecb = FighterECB {
-            bottom: FGVec2::lit("0.0", "-0.5"),
-            top: FGVec2::lit("0.0", "0.5"),
-            left: FGVec2::lit("-0.5", "0.0"),
-            right: FGVec2::lit("0.5", "0.0"),
-        };
-        let previous_ecb = FighterPreviousECB::from(ecb);
-        let mut presentation_snap = crate::fighter::FighterPresentationSnap::default();
-        let mut ledge_info = FighterLedgeInformation::default();
-        let mut context = CollisionContext {
-            translation: &mut translation,
-            prev_translation: &previous_translation,
-            input: &FighterInput::default(),
-            velocity: &mut velocity,
-            surface: &mut surface,
-            ecb: &mut ecb,
-            ledge_info: &mut ledge_info,
-            prev_ecb: &previous_ecb,
-            stage_collision: &stage_collision,
-            leave_ground_ecb_lock_duration: 10,
-            presentation_snap: &mut presentation_snap,
-            downward_stick_threshold: FGi32::ONE,
-            fighter_ledge_collision_box: FGRect {
-                origin: FGVec2::ZERO,
-                end: FGVec2::ZERO,
-            },
-        };
-
-        assert!(matches!(
-            collide_with_stage_grounded(&mut context, true),
-            GroundedMotionResult::InAir
-        ));
-        assert!(matches!(surface, FighterSurfaceState::Airborne { .. }));
-    }
 }
 
 pub fn grounded_movement_common_interrupts(
     state_context: &InterruptContext,
+    ground_common: &GroundedStateCommon,
 ) -> Option<FighterState> {
-    super::jump::check_input(state_context)
+    super::jump::check_input(state_context, ground_common)
 }
 
 pub fn grounded_movement_standstill_common_interrupts(
     state_context: &InterruptContext,
+    ground_common: &GroundedStateCommon,
 ) -> Option<FighterState> {
-    if let Some(state) = ground_attack::check_interrupt(state_context) {
+    if let Some(state) = ground_attack::check_interrupt(state_context, &ground_common) {
         Some(state)
-    } else if let Some(state) = dash::check_input(state_context) {
+    } else if let Some(state) = dash::check_input(state_context, &ground_common) {
         Some(state)
-    } else if let Some(state) = turn::check_input(state_context) {
+    } else if let Some(state) = turn::check_input(state_context, &ground_common) {
         Some(state)
-    } else if let Some(state) = crouch::check_input(state_context) {
+    } else if let Some(state) = walk::check_input(state_context, &ground_common) {
         Some(state)
-    } else if let Some(state) = walk::check_input(state_context) {
-        Some(state)
-    } else if let Some(state) = wait::check_input(state_context) {
+    } else if let Some(state) = wait::check_input(state_context, &ground_common) {
         Some(state)
     } else {
         None
     }
 }
-
-pub fn perform_wavedash(input: &FighterInput, game_settings: &GameSettings) -> FighterState {
-    // If aiming sideways and in the deadzone, do a perfect wavedash
-    // TODO: Improve this so we don't have to go through the airborne state first
-    let mut wavedash_dir =
-        input
-        .get_last_frame()
-        .movement
-        .normalize_or_zero();
-    let movement = input.get_last_frame().movement;
-    if movement.y.is_zero() && !movement.x.is_zero() {
-        wavedash_dir.y =
-            -game_settings.input_common.stick_deadzone - FGi32::lit("-0.01");
-        wavedash_dir.x = movement.x.signum();
-    }
-
-    if wavedash_dir == FGVec2::ZERO {
-        wavedash_dir = FGVec2::lit("0.0", "-1.0");
-    }
-
-    FighterState::AirDodge(AirDodgeState {
-        direction: wavedash_dir.normalize_or_zero(),
-    })
-}

src/fighter/state/ground_attack.rs

@@ -1,41 +1,25 @@
-use bevy::{asset::Assets, log::error};
-
-use crate::{
-    fighter::{
-        attack::{AttackKind, FighterAttackScriptAssets, update_active_attack},
-        state::{
-            CollisionContext, EnterContext, ExitContext, FighterState, FighterStateImpl,
-            InterruptContext, UpdateContext, ground, wait::WaitState,
-        },
+use crate::fighter::{
+    attack::{AttackKind, update_active_hitbox_list},
+    state::{
+        CollisionContext, EnterContext, ExitContext, FighterState, FighterStateImpl,
+        InterruptContext, UpdateContext, ground::GroundedStateCommon, wait::WaitState,
     },
-    scripting::FighterAttackScript,
 };
 
 #[derive(Clone, Debug, Hash)]
 pub struct GroundAttackState {
     pub attack_kind: AttackKind,
-    pub use_root_motion: bool,
+    pub grounded_common: GroundedStateCommon,
 }
 
 impl FighterStateImpl for GroundAttackState {
     const NAME: &'static str = "GroundAttack";
 
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        // Allow interrupting dash attack only into an up/down smash
-        if let AttackKind::DashAttack = self.attack_kind {
-            if state_context.get_current_animation_frame() < state_context.fighter_attributes.dash_attack_cancel_window {
-                if let Some(state) = check_interrupt(state_context) {
-                    if let FighterState::GroundAttack(state) = state {
-                        if matches!(state.attack_kind, AttackKind::UpSmash) || matches!(state.attack_kind, AttackKind::DownSmash) {
-                            return Some(FighterState::GroundAttack(state));
-                        }
-                    }
-                }
-            }
-        }
-
         if state_context.is_current_animation_finished() {
-            Some(FighterState::Wait(WaitState))
+            Some(FighterState::Wait(WaitState {
+                grounded_common: self.grounded_common.clone(),
+            }))
         } else {
             None
         }
@@ -47,42 +31,29 @@ impl FighterStateImpl for GroundAttackState {
             .attack_scripts
             .get(&state_context.attack_script_assets.scripts[&self.attack_kind]);
         if let Some(script) = script {
-            update_active_attack(
+            update_active_hitbox_list(
                 script,
-                state_context
+                &mut state_context
                     .hitboxes
                     .0
                     .as_mut()
-                    .expect("ground attack must have active hitboxes"),
+                    .expect("ground attack must have active hitboxes")
+                    .active_hitboxes,
                 animation_frame,
             );
-
-            // root motion
-            if script.use_root_motion {
-                state_context.velocity.0.x = state_context.animation_root_motion_delta.x;
-                ground::apply_grounded_motion(
-                    state_context.velocity,
-                    state_context.translation,
-                );
-            } else {
-                ground::update_friction_motion(state_context);
-            }
         }
     }
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {
-        state_context
-            .input
-            .consume_command(crate::input::FighterCommands::Attack);
         state_context.play_animation(self.attack_kind.get_animation(), false);
         let script = state_context.attack_script_assets.scripts[&self.attack_kind].clone();
+        state_context.stale_move_queue.push(self.attack_kind);
         state_context.hitboxes.0 = Some(crate::fighter::FighterActiveAttack {
             kind: self.attack_kind,
-            script: script.clone(),
+            script,
             active_hitboxes: Vec::new(),
             solved_hitboxes: Vec::new(),
-            hit_groups: Vec::new(),
-            stalled: false,
+            hit_fighters: Vec::new(),
         });
     }
 
@@ -92,62 +63,16 @@ impl FighterStateImpl for GroundAttackState {
 
     fn check_collision_interrupt(
         &mut self,
-        state_context: &mut CollisionContext,
+        _state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, !self.use_root_motion)
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
+        None
     }
 }
 
-impl GroundAttackState {
-    fn create(
-        attack_kind: AttackKind,
-        attack_script_assets: &FighterAttackScriptAssets,
-        attack_scripts: &Assets<FighterAttackScript>,
-    ) -> Result<Self, AirAttackStateCreateError> {
-        let asset_script = attack_script_assets.scripts.get(&attack_kind).ok_or(
-            AirAttackStateCreateError::AttackScriptAssetNotFound {
-                attack: attack_kind,
-            },
-        )?;
-
-        let script = attack_scripts.get(asset_script).ok_or(
-            AirAttackStateCreateError::AttackScriptNotFound {
-                attack: attack_kind,
-            },
-        )?;
-
-        Ok(Self {
-            attack_kind,
-            use_root_motion: script.use_root_motion
-        })
-    }
-}
-
-#[derive(thiserror::Error, Debug)]
-pub enum AirAttackStateCreateError {
-    #[error("Attack script: {attack:?} not found")]
-    AttackScriptNotFound { attack: AttackKind },
-    #[error("Attack script asset: {attack:?} not found")]
-    AttackScriptAssetNotFound { attack: AttackKind },
-}
-
-pub fn check_interrupt_shared(state_context: &InterruptContext, attack_kind: AttackKind) -> Option<FighterState> {
-    let state = GroundAttackState::create(attack_kind, state_context.attack_script_assets, state_context.attack_scripts);
-
-    match state {
-        Ok(state) => Some(FighterState::GroundAttack(state)),
-        Err(create_error) => {
-            error!("{}", create_error);
-            None
-        },
-    }
-}
-
-pub fn check_interrupt(state_context: &InterruptContext) -> Option<FighterState> {
+pub fn check_interrupt(
+    state_context: &InterruptContext,
+    grounded_common: &GroundedStateCommon,
+) -> Option<FighterState> {
     if state_context
         .input
         .has_command(crate::input::FighterCommands::Attack)
@@ -156,18 +81,10 @@ pub fn check_interrupt(state_context: &InterruptContext) -> Option<FighterState>
             .input
             .get_attack_command_type()
             .to_attack_kind_grounded();
-        check_interrupt_shared(state_context, attack_kind)
-    } else {
-        None
-    }
-}
-
-pub fn check_interrupt_dash_attack(state_context: &InterruptContext) -> Option<FighterState> {
-    if state_context
-        .input
-        .has_command(crate::input::FighterCommands::Attack)
-    {
-        check_interrupt_shared(state_context, AttackKind::DashAttack)
+        Some(FighterState::GroundAttack(GroundAttackState {
+            attack_kind,
+            grounded_common: grounded_common.clone(),
+        }))
     } else {
         None
     }

src/fighter/state/hitstun.rs

@@ -1,22 +1,22 @@
 use crate::{
     fighter::{
         animation::AnimKind,
-        attack::{self, FighterHitReaction},
+        attack::FighterHitReaction,
         state::{
             CollisionContext, EnterContext, ExitContext, FighterState, FighterStateImpl,
-            InterruptContext, UpdateContext,
-            air::{self, AirborneStateCommon},
+            InterruptContext, UpdateContext, air,
             fall::FallState,
-            ground::collision_interrupt,
-            land::LandingType,
+            ground::{GroundedMotionResult, GroundedStateCommon, collide_with_stage_grounded},
+            land::{LandingState, LandingType},
             wait::WaitState,
         },
-    }, math::{int::FGi32, vec::FGVec2},
+    },
+    math::int::FGi32,
 };
 
 #[derive(Clone, Debug, Hash)]
 pub enum HitstopStateKind {
-    Grounded,
+    Grounded(GroundedStateCommon),
     Airborne,
 }
 
@@ -24,17 +24,6 @@ pub enum HitstopStateKind {
 pub struct HitstunState {
     pub hit_reaction: FighterHitReaction,
     pub hitstop_kind: HitstopStateKind,
-    knockback_applied: bool,
-}
-
-impl HitstunState {
-    pub fn new(hit_reaction: FighterHitReaction, hitstop_kind: HitstopStateKind) -> Self {
-        Self {
-            hit_reaction,
-            hitstop_kind,
-            knockback_applied: false,
-        }
-    }
 }
 
 impl FighterStateImpl for HitstunState {
@@ -42,7 +31,7 @@ impl FighterStateImpl for HitstunState {
 
     fn name(&self) -> String {
         let hitstop_kind = match self.hitstop_kind {
-            HitstopStateKind::Grounded => "Grounded",
+            HitstopStateKind::Grounded(_) => "Grounded",
             HitstopStateKind::Airborne => "Airborne",
         };
 
@@ -57,10 +46,12 @@ impl FighterStateImpl for HitstunState {
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
         if state_context.get_current_animation_frame() > self.hit_reaction.hitstun_frames {
             match &self.hitstop_kind {
-                HitstopStateKind::Grounded => Some(FighterState::Wait(WaitState)),
-                HitstopStateKind::Airborne => Some(FighterState::Fall(FallState::new(
-                    AirborneStateCommon::default(),
-                ))),
+                HitstopStateKind::Grounded(grounded_state_common) => {
+                    Some(FighterState::Wait(WaitState {
+                        grounded_common: grounded_state_common.clone(),
+                    }))
+                }
+                HitstopStateKind::Airborne => Some(FighterState::Fall(FallState)),
             }
         } else {
             None
@@ -68,23 +59,7 @@ impl FighterStateImpl for HitstunState {
     }
 
     fn update(&mut self, ctx: &mut UpdateContext) {
-        if !self.knockback_applied {
-            let launch_direction = attack::directional_influence::apply_directional_influence(
-                ctx.input.get_last_frame().movement,
-                self.hit_reaction.launch_angle,
-                ctx.game_settings.fighter_common.di_max_angle,
-            );
-
-            ctx.knockback_velocity.0 = launch_direction * self.hit_reaction.launch_velocity;
-            self.knockback_applied = true;
-        }
-
-        match self.hitstop_kind {
-            HitstopStateKind::Grounded => {}
-            HitstopStateKind::Airborne => {
-                air::integrate_gravity(ctx.velocity, ctx.fighter_attributes, false);
-            }
-        }
+        air::integrate_gravity(ctx.velocity, ctx.fighter_attributes);
 
         let speed = ctx.knockback_velocity.length();
         let next_speed = speed
@@ -98,11 +73,11 @@ impl FighterStateImpl for HitstunState {
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {
         let animation = match self.hitstop_kind {
-            HitstopStateKind::Grounded => AnimKind::FlinchGround,
+            HitstopStateKind::Grounded(_) => AnimKind::FlinchGround,
             HitstopStateKind::Airborne => AnimKind::FlinchAir,
         };
         state_context.play_animation(animation, false);
-        state_context.velocity.0 = FGVec2::ZERO;
+        state_context.knockback_velocity.0 = self.hit_reaction.launch_velocity;
     }
 
     fn on_exit(&mut self, _state_context: &mut ExitContext) {}
@@ -112,26 +87,31 @@ impl FighterStateImpl for HitstunState {
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
         match &mut self.hitstop_kind {
-            HitstopStateKind::Grounded => collision_interrupt(state_context, true),
+            HitstopStateKind::Grounded(grounded_state_common) => {
+                if let GroundedMotionResult::InAir =
+                    collide_with_stage_grounded(state_context, grounded_state_common, true)
+                {
+                    Some(FighterState::Fall(FallState {}))
+                } else {
+                    None
+                }
+            }
             HitstopStateKind::Airborne => {
-                air::collision_interrupt(state_context, LandingType::Normal, false)
+                if let Some(res) = state_context.air_collide_with_stage() {
+                    // Adjust translation
+                    state_context.translation.0 =
+                        res.hit_position - state_context.ecb.get_bottom_point();
+                    let grounded_common = GroundedStateCommon {
+                        current_line_id: res.line_id,
+                    };
+                    Some(FighterState::Land(LandingState::create(
+                        grounded_common,
+                        LandingType::Normal,
+                    )))
+                } else {
+                    None
+                }
             }
         }
     }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        match self.hitstop_kind {
-            HitstopStateKind::Grounded => true,
-            HitstopStateKind::Airborne => false,
-        }
-    }
-
-    fn surface_policy(&self) -> super::SurfacePolicy {
-        match self.hitstop_kind {
-            HitstopStateKind::Grounded => super::SurfacePolicy::Grounded,
-            HitstopStateKind::Airborne => super::SurfacePolicy::Airborne(
-                crate::fighter::surface::EcbLockPolicy::StartOnDetach,
-            ),
-        }
-    }
 }

src/fighter/state/jump.rs

@@ -1,10 +1,19 @@
+use bevy::prelude::*;
 
 use crate::{
     fighter::{
-        animation::AnimKind, state::{
-            CollisionContext, EnterContext, FighterState, FighterStateImpl, InterruptContext, UpdateContext, air::{self, AirborneStateCommon}, ground::{self}, ground_attack,
+        animation::AnimKind,
+        state::{
+            CollisionContext, EnterContext, FighterState, FighterStateImpl, InterruptContext,
+            UpdateContext, air,
+            air_dodge::{self, AirDodgeState},
+            fall::FallState,
+            ground::{self, GroundedMotionResult, GroundedStateCommon},
+            land::{LandingState, LandingType},
         },
-    }, input::{DigitalAction, FighterCommands},
+    },
+    input::FighterCommands,
+    math::{int::FGi32, vec::FGVec2},
 };
 #[derive(Debug, Hash, Clone, Copy)]
 pub enum JumpType {
@@ -13,30 +22,22 @@ pub enum JumpType {
     DoubleJump,
 }
 
-#[derive(Debug, Clone, Hash)]
-pub enum JumpStateInitiator {
-    Tap,
-    Button,
-}
-
 #[derive(Debug, Clone, Hash)]
 pub struct JumpState {
-    pub jump_type: JumpType,
-    pub airborne_state_common: AirborneStateCommon,
-    pub initiator: JumpStateInitiator,
+    jump_type: JumpType,
 }
 
 #[derive(Debug, Clone, Hash)]
 pub struct JumpSquatState {
+    pub grounded_common: GroundedStateCommon,
     pub duration_counter: u32,
-    pub initiator: JumpStateInitiator,
 }
 
 impl JumpSquatState {
-    pub fn create(initiator: JumpStateInitiator) -> Self {
+    pub fn create(grounded_common: GroundedStateCommon) -> Self {
         Self {
+            grounded_common,
             duration_counter: 0,
-            initiator,
         }
     }
 }
@@ -45,34 +46,37 @@ impl FighterStateImpl for JumpSquatState {
     const NAME: &'static str = "JumpSquat";
 
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        if let Some(state) = ground_attack::check_interrupt(state_context) {
-            return Some(state);
-        }
         // Special handling for wavedash from jump squat
         if state_context.input.has_command(FighterCommands::Shield) {
-            Some(ground::perform_wavedash(state_context.input, state_context.game_settings))
+            // If aiming sideways and in the deadzone, do a perfect wavedash
+            // TODO: Improve this so we don't have to go through the airborne state first
+            let mut wavedash_dir = state_context
+                .input
+                .get_last_frame()
+                .movement
+                .normalize_or_zero();
+            let movement = state_context.input.get_last_frame().movement;
+            if movement.y.is_zero() && !movement.x.is_zero() {
+                wavedash_dir.y =
+                    -state_context.game_settings.input_common.stick_deadzone - FGi32::lit("-0.01");
+                wavedash_dir.x = movement.x.signum();
+            }
+
+            if wavedash_dir == FGVec2::ZERO {
+                wavedash_dir = FGVec2::lit("0.0", "-1.0");
+            }
+
+            Some(FighterState::AirDodge(AirDodgeState {
+                direction: wavedash_dir.normalize_or_zero(),
+            }))
         } else if self.duration_counter >= state_context.fighter_attributes.jumpsquat_duration {
-            let tap_jump_held = matches!(self.initiator, JumpStateInitiator::Tap)
-                && state_context.input.get_last_frame().movement.y
-                    > state_context
-                        .game_settings
-                        .input_common
-                        .smash_input_axis_threshold;
-            let jump_type = if tap_jump_held
-                || state_context
-                    .input
-                    .get_last_frame()
-                    .is_held(DigitalAction::Jump)
-            {
+            info!("Jump {}", state_context.input.get_last_frame().jump);
+            let jump_type = if state_context.input.get_last_frame().jump {
                 JumpType::LongJump
             } else {
                 JumpType::ShortHop
             };
-            Some(FighterState::Jump(JumpState {
-                jump_type,
-                airborne_state_common: AirborneStateCommon::default(),
-                initiator: self.initiator.clone(),
-            }))
+            Some(FighterState::Jump(JumpState { jump_type }))
         } else {
             None
         }
@@ -80,40 +84,72 @@ impl FighterStateImpl for JumpSquatState {
 
     fn update(&mut self, state_context: &mut UpdateContext) {
         self.duration_counter += 1;
-        ground::update_friction_motion(state_context);
+
+        let friction =
+            if state_context.velocity.x.abs() > state_context.fighter_attributes.max_walk_vel {
+                state_context.fighter_attributes.ground_friction
+                    * state_context
+                        .game_settings
+                        .fighter_common
+                        .ground_friction_over_walk_speed_multiplier
+            } else {
+                state_context.fighter_attributes.ground_friction
+            };
+
+        let ground_velocity = state_context.velocity.x;
+
+        state_context.velocity.x += ground::apply_grounded_friction(friction, ground_velocity);
+
+        ground::apply_grounded_motion(
+            state_context.velocity,
+            state_context.translation,
+            state_context.prev_translation,
+        );
     }
 
     fn check_collision_interrupt(
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, false)
+        if let GroundedMotionResult::InAir =
+            ground::collide_with_stage_grounded(state_context, &mut self.grounded_common, false)
+        {
+            Some(FighterState::Fall(FallState))
+        } else {
+            None
+        }
     }
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {
         state_context.play_animation(AnimKind::JumpSquat, false);
-        state_context.input.enable_hold_all(10);
         state_context.input.clear_command(FighterCommands::Jump);
-        state_context.input.clear_command(FighterCommands::TapJump);
-    }
-
-    fn on_exit(&mut self, state_context: &mut crate::fighter::state::ExitContext) {
-        state_context.input.disable_hold_all();
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
     }
 }
 
 impl FighterStateImpl for JumpState {
     const NAME: &'static str = "Jump";
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        air::air_interrupts_common(state_context, &self.airborne_state_common)
+        if state_context.input.has_command(FighterCommands::Jump) {
+            Some(FighterState::Jump(JumpState {
+                jump_type: JumpType::DoubleJump,
+            }))
+        } else {
+            air_dodge::check_input(state_context)
+        }
     }
 
     fn update(&mut self, state_context: &mut UpdateContext) {
-        air::update_standard_motion(state_context, &mut self.airborne_state_common);
+        air::integrate_gravity(state_context.velocity, state_context.fighter_attributes);
+        air::apply_air_drift(
+            state_context.velocity,
+            state_context.fighter_attributes,
+            state_context.input,
+        );
+        air::apply_air_motion(
+            state_context.velocity,
+            state_context.translation,
+            state_context.prev_translation,
+        );
     }
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {
@@ -171,56 +207,39 @@ impl FighterStateImpl for JumpState {
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        air::collision_interrupt(
-            state_context,
-            crate::fighter::state::land::LandingType::Normal,
-            true,
-        )
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        false
-    }
-
-    fn surface_policy(&self) -> super::SurfacePolicy {
-        use crate::fighter::surface::EcbLockPolicy;
-        match self.jump_type {
-            JumpType::DoubleJump => super::SurfacePolicy::Airborne(EcbLockPolicy::Restart),
-            JumpType::ShortHop | JumpType::LongJump => {
-                super::SurfacePolicy::Airborne(EcbLockPolicy::StartOnDetach)
-            }
+        if let Some(res) = state_context.air_collide_with_stage() {
+            // Adjust translation
+            state_context.translation.0 = res.hit_position - state_context.ecb.get_bottom_point();
+            let grounded_common = GroundedStateCommon {
+                current_line_id: res.line_id,
+            };
+            Some(FighterState::Land(LandingState::create(
+                grounded_common,
+                LandingType::Normal,
+            )))
+        } else {
+            None
         }
     }
 }
 
-pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
-    if state_context.input.has_command(FighterCommands::Jump) {
-        Some(FighterState::JumpSquat(JumpSquatState::create(
-            JumpStateInitiator::Button,
-        )))
-    } else if state_context.input.has_command(FighterCommands::TapJump) {
-        Some(FighterState::JumpSquat(JumpSquatState::create(
-            JumpStateInitiator::Tap,
-        )))
-    } else {
-        None
-    }
+pub fn check_input(
+    state_context: &InterruptContext,
+    ground_common: &GroundedStateCommon,
+) -> Option<FighterState> {
+    state_context
+        .input
+        .has_command(FighterCommands::Jump)
+        .then(|| FighterState::JumpSquat(JumpSquatState::create(ground_common.clone())))
 }
 
 pub fn check_input_double_jump(state_context: &InterruptContext) -> Option<FighterState> {
-    if state_context.input.has_command(FighterCommands::Jump) {
-        Some(FighterState::Jump(JumpState {
-            jump_type: JumpType::DoubleJump,
-            airborne_state_common: AirborneStateCommon::default(),
-            initiator: JumpStateInitiator::Button,
-        }))
-    } else if state_context.input.has_command(FighterCommands::TapJump) {
-        Some(FighterState::Jump(JumpState {
-            jump_type: JumpType::DoubleJump,
-            airborne_state_common: AirborneStateCommon::default(),
-            initiator: JumpStateInitiator::Tap,
-        }))
-    } else {
-        None
-    }
+    state_context
+        .input
+        .has_command(FighterCommands::Jump)
+        .then(|| {
+            FighterState::Jump(JumpState {
+                jump_type: JumpType::DoubleJump,
+            })
+        })
 }

src/fighter/state/land.rs

@@ -3,7 +3,11 @@ use crate::fighter::{
     state::{
         CollisionContext, EnterContext, FighterState, FighterStateImpl, InterruptContext,
         UpdateContext, dash,
-        ground::{self, grounded_movement_standstill_common_interrupts},
+        fall::FallState,
+        ground::{
+            self, GroundedMotionResult, GroundedStateCommon,
+            grounded_movement_standstill_common_interrupts,
+        },
         walk,
     },
 };
@@ -16,12 +20,16 @@ pub enum LandingType {
 
 #[derive(Debug, Clone, Hash)]
 pub struct LandingState {
+    pub grounded_common: GroundedStateCommon,
     pub landing_type: LandingType,
 }
 
 impl LandingState {
-    pub fn create(landing_type: LandingType) -> Self {
-        Self { landing_type }
+    pub fn create(grounded_common: GroundedStateCommon, landing_type: LandingType) -> Self {
+        Self {
+            grounded_common,
+            landing_type,
+        }
     }
 }
 
@@ -30,14 +38,14 @@ impl FighterStateImpl for LandingState {
 
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
         if state_context.is_current_animation_finished() {
-            grounded_movement_standstill_common_interrupts(state_context)
+            grounded_movement_standstill_common_interrupts(state_context, &self.grounded_common)
         } else if state_context.get_current_animation_frame()
             >= state_context.fighter_attributes.landing_iasa
             && let LandingType::Normal = self.landing_type
         {
-            dash::check_input(state_context).or_else(|| {
-                ground::grounded_movement_common_interrupts(state_context)
-                    .or_else(|| walk::check_input(state_context))
+            dash::check_input(state_context, &self.grounded_common).or_else(|| {
+                ground::grounded_movement_common_interrupts(state_context, &self.grounded_common)
+                    .or_else(|| walk::check_input(state_context, &self.grounded_common))
             })
         } else {
             None
@@ -45,14 +53,39 @@ impl FighterStateImpl for LandingState {
     }
 
     fn update(&mut self, state_context: &mut UpdateContext) {
-        ground::update_friction_motion(state_context);
+        let friction =
+            if state_context.velocity.x.abs() > state_context.fighter_attributes.max_walk_vel {
+                state_context.fighter_attributes.ground_friction
+                    * state_context
+                        .game_settings
+                        .fighter_common
+                        .ground_friction_over_walk_speed_multiplier
+            } else {
+                state_context.fighter_attributes.ground_friction
+            };
+
+        let ground_velocity = state_context.velocity.x;
+
+        state_context.velocity.x += ground::apply_grounded_friction(friction, ground_velocity);
+
+        ground::apply_grounded_motion(
+            state_context.velocity,
+            state_context.translation,
+            state_context.prev_translation,
+        );
     }
 
     fn check_collision_interrupt(
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, true)
+        if let GroundedMotionResult::InAir =
+            ground::collide_with_stage_grounded(state_context, &mut self.grounded_common, true)
+        {
+            Some(FighterState::Fall(FallState))
+        } else {
+            None
+        }
     }
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {
@@ -65,8 +98,4 @@ impl FighterStateImpl for LandingState {
             }
         };
     }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
-    }
 }

src/fighter/state/ledge_action.rs

@@ -1,155 +0,0 @@
-use super::{CollisionContext, EnterContext, FighterStateImpl, InterruptContext, UpdateContext};
-use crate::fighter::animation::AnimKind;
-use crate::fighter::state::air::AirborneStateCommon;
-use crate::fighter::state::jump::{JumpState, JumpStateInitiator, JumpType};
-use crate::fighter::state::wait::WaitState;
-use crate::fighter::state::{FighterState, ground};
-use crate::fighter::FighterFacingDirection;
-use crate::input::FighterCommands;
-use crate::math::int::FGi32;
-use crate::math::vec::FGVec2;
-use crate::stage::line::{StageLedgeSide, StageVertexID};
-
-#[derive(Debug, Clone, Hash)]
-pub enum LedgeAction {
-    Jump(JumpStateInitiator),
-    GetUp
-}
-
-#[derive(Debug, Clone, Hash)]
-pub struct LedgeActionState {
-    pub ledge_id: StageVertexID,
-    pub ledge_action: LedgeAction,
-    pub is_in_grounded_phase: bool,
-}
-
-impl LedgeActionState {
-    pub fn create_jump(ledge_id: StageVertexID, initiator: JumpStateInitiator) -> Self {
-        LedgeActionState {
-            ledge_id,
-            ledge_action: LedgeAction::Jump(initiator),
-            is_in_grounded_phase: false,
-        }
-    }
-    pub fn create_getup(ledge_id: StageVertexID) -> Self {
-        LedgeActionState {
-            ledge_id,
-            ledge_action: LedgeAction::GetUp,
-            is_in_grounded_phase: false,
-        }
-    }
-}
-
-impl FighterStateImpl for LedgeActionState {
-    const NAME: &'static str = "LedgeAction";
-    fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        match &self.ledge_action {
-            LedgeAction::Jump(initiator) => {
-                if state_context.is_current_animation_finished() {
-                    if state_context.input.has_command(FighterCommands::Shield) {
-                        Some(ground::perform_wavedash(state_context.input, state_context.game_settings))
-                    } else {
-                        Some(FighterState::Jump(JumpState {
-                            jump_type: JumpType::DoubleJump,
-                            airborne_state_common: AirborneStateCommon::default(),
-                            initiator: initiator.clone()
-                        }))
-                    }
-                } else {
-                    None
-                }
-            },
-            LedgeAction::GetUp => {
-                if state_context.is_current_animation_finished() {
-                    Some(FighterState::Wait(WaitState))
-                } else {
-                    None
-                }
-            },
-        }
-    }
-
-    fn on_enter(&mut self, state_context: &mut EnterContext) {
-        match self.ledge_action {
-            LedgeAction::Jump(_) => {
-                state_context.play_animation(AnimKind::LedgeJump, false);
-                state_context.input.enable_hold_all(10);
-                state_context.input.clear_command(FighterCommands::Jump);
-                state_context.input.clear_command(FighterCommands::TapJump);
-            },
-            LedgeAction::GetUp => {
-                state_context.play_animation(AnimKind::LedgeGetUp, false);
-            },
-        }
-
-        state_context.velocity.0 = FGVec2::ZERO;
-        state_context.knockback_velocity.0 = FGVec2::ZERO;
-        let Some(ledge) = state_context.stage_collision.find_ledge_by_vertex(self.ledge_id) else {
-            return;
-        };
-        state_context.translation.0 = ledge.position;
-        *state_context.facing_direction = match ledge.hang_side {
-            StageLedgeSide::Left => FighterFacingDirection::Right,
-            StageLedgeSide::Right => FighterFacingDirection::Left,
-        };
-        if let Some(root_position) = state_context.initial_animation_root_position() {
-            state_context.translation.0 = root_position;
-        }
-        state_context.presentation_snap.0 = true;
-    }
-
-    fn update(&mut self, state_context: &mut UpdateContext) {
-        if !self.is_in_grounded_phase {
-            let root_pos = state_context.animation_root_position.unwrap_or_default();
-            let Some(ledge) = state_context.stage_collision.find_ledge_by_vertex(self.ledge_id) else {
-                return;
-            };
-
-            let ledge_pos = ledge.position;
-            let ledge_modifier = match ledge.hang_side {
-                StageLedgeSide::Left => FGi32::ONE,
-                StageLedgeSide::Right => FGi32::NEG_ONE,
-            };
-
-            let normalized_root_position = root_pos - ledge_pos;
-            let normalized_root_position = FGVec2::new(normalized_root_position.x * ledge_modifier, normalized_root_position.y);
-            
-            if normalized_root_position.x.is_positive() && normalized_root_position.y.is_positive() {
-                let Some((segment_id, _)) = state_context
-                    .stage_collision
-                    .find_ledge_ground_segment(self.ledge_id)
-                else {
-                    return;
-                };
-
-                self.is_in_grounded_phase = true;
-                state_context.translation.0 = ledge.position;
-                state_context.surface.land(segment_id, state_context.ledge_info);
-            }
-        }
-
-        if self.is_in_grounded_phase {
-            state_context.velocity.0.x = state_context.animation_root_motion_delta.x;
-            ground::apply_grounded_motion(
-                state_context.velocity,
-                state_context.translation,
-            );
-        } else {
-            if let Some(root_position) = state_context.animation_root_position {
-                state_context.translation.0 = root_position;
-            }
-        }
-
-    }
-
-    fn check_collision_interrupt(
-        &mut self,
-        _state_context: &mut CollisionContext,
-    ) -> Option<FighterState> {
-        None
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        self.is_in_grounded_phase
-    }
-}

src/fighter/state/ledge_grab.rs

@@ -1,73 +0,0 @@
-use super::{
-    EnterContext, FighterStateImpl, InterruptContext, UpdateContext,
-};
-use crate::fighter::{FighterFacingDirection, FighterInvulnerabilityState};
-use crate::fighter::animation::AnimKind;
-use crate::fighter::state::{ExitContext, FighterState};
-use crate::fighter::state::air::AirborneStateCommon;
-use crate::fighter::state::ledge_wait::LedgeWaitState;
-use crate::stage::line::{StageLedgeSide, StageVertexID};
-
-#[derive(Debug, Clone, Hash)]
-pub struct LedgeGrabState {
-    ledge_id: StageVertexID
-}
-
-impl LedgeGrabState {
-    pub fn new(ledge_id: StageVertexID) -> Self {
-        Self {
-            ledge_id
-        }
-    }
-}
-
-impl FighterStateImpl for LedgeGrabState {
-    const NAME: &'static str = "LedgeGrab";
-    fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        if state_context.is_current_animation_finished() {
-            Some(FighterState::LedgeWait(LedgeWaitState {
-                airborne_state_common: AirborneStateCommon::default(),
-                ledge_id: self.ledge_id.clone()
-            }))
-        } else {
-            None
-        }
-    }
-
-    fn on_enter(&mut self, state_context: &mut EnterContext) {
-        state_context.play_animation(AnimKind::LedgeGrab, false);
-
-        *state_context.vulnerability = FighterInvulnerabilityState::Intangible {
-            frames_remaining: None,
-        };
-
-        let Some(ledge) = state_context.stage_collision.find_ledge_by_vertex(self.ledge_id) else {
-            return;
-        };
-        state_context.translation.0 = ledge.position;
-        *state_context.facing_direction = match ledge.hang_side {
-            StageLedgeSide::Left => FighterFacingDirection::Right,
-            StageLedgeSide::Right => FighterFacingDirection::Left,
-        };
-        if let Some(root_position) = state_context.initial_animation_root_position() {
-            state_context.translation.0 = root_position;
-        }
-        state_context.presentation_snap.0 = true;
-
-
-    }
-
-    fn on_exit(&mut self, state_context: &mut ExitContext) {
-        *state_context.vulnerability = FighterInvulnerabilityState::Vulnerable;
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        false
-    }
-    
-    fn update(&mut self, state_context: &mut UpdateContext) {
-        if let Some(root_position) = state_context.animation_root_position {
-            state_context.translation.0 = root_position;
-        }
-    }
-}

src/fighter/state/ledge_wait.rs

@@ -1,165 +0,0 @@
-use super::{CollisionContext, EnterContext, FighterStateImpl, InterruptContext, UpdateContext};
-use crate::fighter::animation::AnimKind;
-use crate::fighter::state::air::AirborneStateCommon;
-use crate::fighter::state::fall::FallState;
-use crate::fighter::state::FighterState;
-use crate::fighter::state::jump::JumpStateInitiator;
-use crate::fighter::state::ledge_action::{LedgeActionState};
-use crate::fighter::{FighterFacingDirection, FighterInvulnerabilityState};
-use crate::input::FighterCommands;
-use crate::math::vec::FGVec2;
-use crate::stage::line::{StageLedgeSide, StageVertexID};
-
-#[derive(Debug, Clone, Hash)]
-pub struct LedgeWaitState {
-    pub airborne_state_common: AirborneStateCommon,
-    pub ledge_id: StageVertexID,
-}
-
-impl FighterStateImpl for LedgeWaitState {
-    const NAME: &'static str = "LedgeWait";
-    fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        if state_context.input.has_command(FighterCommands::Jump) {
-            return Some(FighterState::LedgeAction(LedgeActionState::create_jump(self.ledge_id, JumpStateInitiator::Button)));
-        } else if state_context.input.has_command(FighterCommands::TapJump) {
-            return Some(FighterState::LedgeAction(LedgeActionState::create_jump(self.ledge_id, JumpStateInitiator::Tap)));
-        }
-
-        if is_ledge_getup_input(state_context.input.get_last_frame().movement.x,
-            state_context.game_settings.input_common.run_stick_threshold,
-            state_context.facing_direction) {
-                return Some(FighterState::LedgeAction(LedgeActionState::create_getup(self.ledge_id)));
-        }
-
-        if is_ledge_drop_input(state_context.input.get_last_frame().movement.x,
-            state_context.game_settings.input_common.run_stick_threshold,
-            state_context.facing_direction) {
-            state_context.ledge_grab_lockout.start(
-                state_context
-                    .game_settings
-                    .fighter_common
-                    .ledge_drop_regrab_lockout_duration_frames,
-            );
-            return Some(FighterState::Fall(FallState::new(
-                AirborneStateCommon { is_fast_falling: false },
-            )));
-        }
-        if is_ledge_drop_fastfall_input(
-            state_context.input.get_last_frame().movement.y,
-            state_context.game_settings.input_common.run_stick_threshold,
-        ) {
-            state_context.ledge_grab_lockout.start(
-                state_context
-                    .game_settings
-                    .fighter_common
-                    .ledge_drop_regrab_lockout_duration_frames,
-            );
-            return Some(FighterState::Fall(FallState::new(
-                AirborneStateCommon { is_fast_falling: true },
-            )));
-        }
-
-        None
-    }
-
-    fn on_enter(&mut self, state_context: &mut EnterContext) {
-        state_context.velocity.0 = FGVec2::ZERO;
-        state_context.knockback_velocity.0 = FGVec2::ZERO;
-        
-        if state_context.ledge_info.grab_count < state_context.game_settings.fighter_common.max_ledge_grab_count {
-            *state_context.vulnerability = FighterInvulnerabilityState::Intangible {
-                frames_remaining: Some(
-                    state_context
-                    .game_settings
-                    .fighter_common
-                    .ledge_grab_invulnerability_duration,
-                ),
-            };
-        }
-
-        state_context.ledge_info.grab_count = state_context.ledge_info.grab_count.saturating_add(1);
-        
-        let Some(ledge) = state_context.stage_collision.find_ledge_by_vertex(self.ledge_id) else {
-            return;
-        };
-        state_context.translation.0 = ledge.position;
-        *state_context.facing_direction = match ledge.hang_side {
-            StageLedgeSide::Left => FighterFacingDirection::Right,
-            StageLedgeSide::Right => FighterFacingDirection::Left,
-        };
-        state_context.play_animation(AnimKind::LedgeWait, true);
-        if let Some(root_position) = state_context.initial_animation_root_position() {
-            state_context.translation.0 = root_position;
-        }
-        state_context.presentation_snap.0 = true;
-    }
-
-    fn update(&mut self, state_context: &mut UpdateContext) {
-        if let Some(root_position) = state_context.animation_root_position {
-            state_context.translation.0 = root_position;
-        }
-    }
-
-    fn check_collision_interrupt(
-        &mut self,
-        _state_context: &mut CollisionContext,
-    ) -> Option<FighterState> {
-        None
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        false
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::math::int::FGi32;
-
-    #[test]
-    fn ledge_drop_uses_the_run_stick_threshold() {
-        let threshold = FGi32::lit("0.625");
-
-        assert!(is_ledge_drop_fastfall_input(FGi32::lit("-0.625"), threshold));
-        assert!(is_ledge_drop_fastfall_input(FGi32::lit("-1.0"), threshold));
-        assert!(!is_ledge_drop_fastfall_input(FGi32::lit("-0.624"), threshold));
-    }
-}
-
-fn is_ledge_drop_fastfall_input(
-    vertical_input: crate::math::int::FGi32,
-    threshold: crate::math::int::FGi32,
-) -> bool {
-    vertical_input <= -threshold
-}
-
-fn is_ledge_drop_input(
-    horizontal_input: crate::math::int::FGi32,
-    threshold: crate::math::int::FGi32,
-    facing_dir: &FighterFacingDirection,
-) -> bool {
-    let dir = facing_dir.to_sign();
-    if horizontal_input.abs() > threshold {
-        if dir != horizontal_input.signum() {
-            return true;
-        }
-    }
-
-    false
-}
-
-fn is_ledge_getup_input(
-    horizontal_input: crate::math::int::FGi32,
-    threshold: crate::math::int::FGi32,
-    facing_dir: &FighterFacingDirection,
-) -> bool {
-    let dir = facing_dir.to_sign();
-    if horizontal_input.abs() > threshold {
-        if dir == horizontal_input.signum() {
-            return true;
-        }
-    }
-
-    false
-}

src/fighter/state/mod.rs

@@ -8,40 +8,25 @@ use bevy::prelude::*;
 use crate::fighter::animation::{AnimKind, FighterAnimationFrame};
 use crate::fighter::attack::{
     FighterAttackScriptAssets, FighterKnockbackVelocity, FighterPendingHitReaction,
-    FighterStaleMoveQueue, HitStop,
+    FighterStaleMoveQueue,
 };
 use crate::fighter::attributes::FighterAttributes;
-use crate::fighter::baked_animation::{BakedFighterAnimations, FighterBoneMatrices};
+use crate::fighter::baked_animation::BakedFighterAnimations;
 use crate::fighter::ecb::FighterPreviousECB;
 use crate::fighter::manifest::FighterManifest;
 use crate::fighter::state::hitstun::HitstunState;
-use crate::fighter::surface::EcbLockPolicy;
 use crate::fighter::visual::FighterAnimations;
 use crate::fighter::{
-    Fighter, FighterDamage, FighterECB, FighterFacingDirection, FighterHitboxes, FighterHitstop,
-    FighterHitstopShake, FighterHitstopShakeKind, FighterHitstopShakeRole,
-    FighterInvulnerabilityState, FighterLedgeInformation, FighterPendingRespawn,
-    FighterPresentationSnap, FighterPreviousTranslation, FighterSurfaceState, FighterTranslation,
-    FighterVelocity,
+    Fighter, FighterECB, FighterFacingDirection, FighterHitboxes, FighterHitstop,
+    FighterPreviousTranslation, FighterTranslation, FighterVelocity,
 };
 use crate::game_settings::GameSettings;
 use crate::input::FighterInput;
-use crate::match_loading::MatchConfig;
-use crate::match_runtime::MatchState;
-use crate::math::int::FGi32;
-use crate::math::rect::FGRect;
-use crate::math::vec::FGVec2;
-use crate::math::vec3::FGVec3;
-use crate::player::Player;
 use crate::scripting::FighterAttackScript;
 use crate::stage::line::StageCollision;
-use crate::stage::manifest::{StageManifest, StageManifestRegistry};
 
 pub mod air;
-pub mod air_attack;
 pub mod air_dodge;
-pub mod angel;
-pub mod crouch;
 pub mod dash;
 pub mod fall;
 pub mod ground;
@@ -49,20 +34,10 @@ pub mod ground_attack;
 pub mod hitstun;
 pub mod jump;
 pub mod land;
-pub mod platform_pass;
 pub mod run;
 pub mod turn;
 pub mod wait;
 pub mod walk;
-pub mod ledge_wait;
-pub mod ledge_action;
-pub mod ledge_grab;
-
-#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
-pub enum SurfacePolicy {
-    Grounded,
-    Airborne(EcbLockPolicy),
-}
 
 macro_rules! fighter_states {
     ($($variant:ident => $ty:ty),* $(,)?) => {
@@ -91,14 +66,6 @@ macro_rules! fighter_states {
             pub fn check_collision_interrupt(&mut self, ctx: &mut CollisionContext) -> Option<FighterState> {
                 match self { $(Self::$variant(s) => s.check_collision_interrupt(ctx)),* }
             }
-
-            pub fn is_visually_grounded(&self) -> bool {
-                match self { $(Self::$variant(s) => s.is_visually_grounded()),* }
-            }
-
-            pub fn surface_policy(&self) -> SurfacePolicy {
-                match self { $(Self::$variant(s) => s.surface_policy()),* }
-            }
         }
 
         $(impl From<$ty> for FighterState {
@@ -124,12 +91,6 @@ pub trait FighterStateImpl: Sized {
     ) -> Option<FighterState> {
         None
     }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool;
-
-    fn surface_policy(&self) -> SurfacePolicy {
-        SurfacePolicy::Grounded
-    }
 }
 
 pub struct AnimationStatus {
@@ -140,14 +101,9 @@ pub struct AnimationStatus {
 pub struct InterruptContext<'a> {
     pub input: &'a FighterInput,
     pub facing_direction: &'a mut FighterFacingDirection,
-    pub ledge_grab_lockout: &'a mut FighterLedgeInformation,
     pub game_settings: &'a GameSettings,
     pub fighter_attributes: &'a FighterAttributes,
-    pub surface: &'a FighterSurfaceState,
     pub animation: AnimationStatus,
-    pub stage_collision: &'a StageCollision,
-    pub attack_scripts: &'a Assets<FighterAttackScript>,
-    pub attack_script_assets: &'a FighterAttackScriptAssets,
 }
 
 impl InterruptContext<'_> {
@@ -164,82 +120,36 @@ pub struct EnterContext<'a> {
     pub input: &'a mut FighterInput,
     pub hitboxes: &'a mut FighterHitboxes,
     pub velocity: &'a mut FighterVelocity,
-    pub translation: &'a mut FighterTranslation,
     pub knockback_velocity: &'a mut FighterKnockbackVelocity,
     pub stale_move_queue: &'a mut FighterStaleMoveQueue,
     pub facing_direction: &'a mut FighterFacingDirection,
     pub animation_frame: &'a mut FighterAnimationFrame,
-    pub presentation_snap: &'a mut FighterPresentationSnap,
-    pub surface: &'a mut FighterSurfaceState,
-    pub vulnerability: &'a mut FighterInvulnerabilityState,
-    pub ledge_info: &'a mut FighterLedgeInformation,
     pub fighter_attributes: &'a FighterAttributes,
     pub attack_script_assets: &'a FighterAttackScriptAssets,
-    pub game_settings: &'a GameSettings,
-    pub stage_collision: &'a StageCollision,
-    baked_animations: &'a BakedFighterAnimations,
-    model_scale: FGi32,
 }
 
 impl EnterContext<'_> {
     pub fn play_animation(&mut self, kind: AnimKind, repeat: bool) {
         self.animation_frame.reset(kind, repeat);
     }
-
-    /// World-space root position authored for frame zero of the animation most
-    /// recently selected with [`Self::play_animation`].
-    pub fn initial_animation_root_position(&self) -> Option<FGVec2> {
-        let position = self
-            .baked_animations
-            .initial_root_position(self.animation_frame.kind, self.model_scale)?;
-        Some(
-            self.translation.0
-                + animation_position_to_gameplay(position, self.facing_direction),
-        )
-    }
-
-    pub fn get_animation_duration(&self, kind: AnimKind) -> Option<usize> {
-        self.baked_animations.get_animation_duration(kind)
-    }
 }
 
 pub struct ExitContext<'a> {
-    pub input: &'a mut FighterInput,
     pub hitboxes: &'a mut FighterHitboxes,
-    pub surface: &'a mut FighterSurfaceState,
-    pub vulnerability: &'a mut FighterInvulnerabilityState,
 }
 
 pub struct UpdateContext<'a> {
     pub translation: &'a mut FighterTranslation,
     pub prev_translation: &'a mut FighterPreviousTranslation,
-    pub input: &'a mut FighterInput,
+    pub input: &'a FighterInput,
     pub hitboxes: &'a mut FighterHitboxes,
     pub velocity: &'a mut FighterVelocity,
-    pub surface: &'a mut FighterSurfaceState,
     pub knockback_velocity: &'a mut FighterKnockbackVelocity,
-    pub vulnerability: &'a mut FighterInvulnerabilityState,
-    pub ledge_info: &'a mut FighterLedgeInformation,
     pub game_settings: &'a GameSettings,
-    /// Root motion in the fighter's gameplay plane: X is world-right and Y is
-    /// world-up. Animation +Z is forward and is mirrored by facing direction.
-    pub animation_root_motion_delta: FGVec2,
-    /// Current world-space root position implied by this animation frame.
-    /// States opt into root motion by assigning this to [`FighterTranslation`].
-    pub animation_root_position: Option<FGVec2>,
     pub animation_frame: u32,
     pub fighter_attributes: &'a FighterAttributes,
     pub attack_scripts: &'a Assets<FighterAttackScript>,
     pub attack_script_assets: &'a FighterAttackScriptAssets,
-    pub facing_direction: &'a FighterFacingDirection,
-    pub stage_collision: &'a StageCollision,
-}
-
-fn animation_position_to_gameplay(
-    position: FGVec3,
-    facing_direction: &FighterFacingDirection,
-) -> FGVec2 {
-    FGVec2::new(position.z * facing_direction.to_sign(), position.y)
 }
 
 impl UpdateContext<'_> {
@@ -251,46 +161,22 @@ impl UpdateContext<'_> {
 pub struct CollisionContext<'a> {
     pub translation: &'a mut FighterTranslation,
     pub prev_translation: &'a FighterPreviousTranslation,
-    pub input: &'a FighterInput,
     pub velocity: &'a mut FighterVelocity,
-    pub surface: &'a mut FighterSurfaceState,
-    pub ecb: &'a mut FighterECB,
+    pub ecb: &'a FighterECB,
     pub prev_ecb: &'a FighterPreviousECB,
     pub stage_collision: &'a StageCollision,
-    pub leave_ground_ecb_lock_duration: u32,
-    pub presentation_snap: &'a mut FighterPresentationSnap,
-    pub ledge_info: &'a mut FighterLedgeInformation,
-    pub fighter_ledge_collision_box: FGRect,
-    pub downward_stick_threshold: FGi32,
 }
 
 impl CollisionContext<'_> {
     pub fn air_collide_with_stage(
         &self,
-        can_ignore_soft_platforms: bool,
     ) -> Option<crate::fighter::collision::AirCollisionWithStageResult> {
-        let ignored_polys = self.surface.ignored_polygon_ids();
-        let ignore_soft_platforms = can_ignore_soft_platforms
-            && self.input.get_last_frame().movement.y <= -self.downward_stick_threshold;
         crate::fighter::collision::air_collide_with_stage(
             self.prev_translation,
             self.translation,
             self.prev_ecb,
             self.ecb,
             self.stage_collision,
-            &ignored_polys,
-            ignore_soft_platforms,
-        )
-    }
-    pub fn air_collide_with_ledges(
-        &self,
-    ) -> Option<crate::fighter::collision::AirCollisionWithLedgeResult> {
-        if self.ledge_info.is_regrab_lockout_active() {
-            return None;
-        }
-        crate::fighter::collision::air_collide_with_ledges(
-            &self.fighter_ledge_collision_box,
-            self.stage_collision,
         )
     }
 }
@@ -298,23 +184,16 @@ impl CollisionContext<'_> {
 fighter_states! {
     Wait => wait::WaitState,
     Walk => walk::WalkState,
-    PlatformPass => platform_pass::PlatformPassState,
-    Crouch => crouch::CrouchState,
     Dash => dash::DashState,
     Run => run::RunState,
     Fall => fall::FallState,
     JumpSquat => jump::JumpSquatState,
     Jump => jump::JumpState,
     Land => land::LandingState,
-    LedgeWait => ledge_wait::LedgeWaitState,
-    LedgeAction => ledge_action::LedgeActionState,
-    LedgeGrab => ledge_grab::LedgeGrabState,
     AirDodge => air_dodge::AirDodgeState,
     Turn => turn::TurnState,
     GroundAttack => ground_attack::GroundAttackState,
     Hitstun => hitstun::HitstunState,
-    Angel => angel::AngelState,
-    AirAttack => air_attack::AirAttackState,
 }
 
 #[derive(QueryData)]
@@ -322,21 +201,16 @@ fighter_states! {
 pub struct FighterFrameQuery {
     pub translation: &'static mut FighterTranslation,
     pub prev_translation: &'static mut FighterPreviousTranslation,
-    pub presentation_snap: &'static mut FighterPresentationSnap,
     pub input: &'static mut FighterInput,
     pub hitboxes: &'static mut FighterHitboxes,
     pub velocity: &'static mut FighterVelocity,
-    pub surface: &'static mut FighterSurfaceState,
     pub knockback_velocity: &'static mut FighterKnockbackVelocity,
     pub stale_move_queue: &'static mut FighterStaleMoveQueue,
-    pub ecb: &'static mut FighterECB,
+    pub ecb: &'static FighterECB,
     pub prev_ecb: &'static FighterPreviousECB,
     pub facing_direction: &'static mut FighterFacingDirection,
     pub animation_frame: &'static mut FighterAnimationFrame,
-    pub vulnerability: &'static mut FighterInvulnerabilityState,
-    pub ledge_information: &'static mut FighterLedgeInformation,
     pub fighter: &'static Fighter,
-    pub bone_matrices: &'static FighterBoneMatrices,
 }
 
 impl<'w, 's> FighterFrameQueryItem<'w, 's> {
@@ -362,22 +236,14 @@ impl<'w, 's> FighterFrameQueryItem<'w, 's> {
         animations: &'a FighterAnimations,
         baked_animations: &'a Assets<BakedFighterAnimations>,
         attributes: &'a FighterAttributes,
-        stage_collision: &'a StageCollision,
-        attack_scripts: &'a Assets<FighterAttackScript>,
-        attack_script_assets: &'a FighterAttackScriptAssets,
     ) -> InterruptContext<'a> {
         let animation = self.animation_status(animations, baked_animations);
         InterruptContext {
             input: &self.input,
             facing_direction: &mut self.facing_direction,
-            ledge_grab_lockout: &mut self.ledge_information,
             game_settings,
             fighter_attributes: attributes,
             animation,
-            surface: &self.surface,
-            stage_collision,
-            attack_script_assets: attack_script_assets,
-            attack_scripts,
         }
     }
 
@@ -385,39 +251,23 @@ impl<'w, 's> FighterFrameQueryItem<'w, 's> {
         &'a mut self,
         attributes: &'a FighterAttributes,
         attack_script_assets: &'a FighterAttackScriptAssets,
-        game_settings: &'a GameSettings,
-        stage_collision: &'a StageCollision,
-        baked_animations: &'a BakedFighterAnimations,
-        model_scale: FGi32,
     ) -> EnterContext<'a> {
         EnterContext {
             input: &mut self.input,
             hitboxes: &mut self.hitboxes,
             velocity: &mut self.velocity,
             knockback_velocity: &mut self.knockback_velocity,
-            translation: &mut self.translation,
             stale_move_queue: &mut self.stale_move_queue,
             facing_direction: &mut self.facing_direction,
             animation_frame: &mut self.animation_frame,
-            surface: &mut self.surface,
-            vulnerability: &mut self.vulnerability,
-            presentation_snap: &mut self.presentation_snap,
-            ledge_info: &mut self.ledge_information,
             fighter_attributes: attributes,
             attack_script_assets,
-            game_settings,
-            stage_collision,
-            baked_animations,
-            model_scale,
         }
     }
 
     fn exit_context(&mut self) -> ExitContext<'_> {
         ExitContext {
-            input: &mut self.input,
             hitboxes: &mut self.hitboxes,
-            surface: &mut self.surface,
-            vulnerability: &mut self.vulnerability,
         }
     }
 
@@ -427,64 +277,33 @@ impl<'w, 's> FighterFrameQueryItem<'w, 's> {
         attributes: &'a FighterAttributes,
         attack_scripts: &'a Assets<FighterAttackScript>,
         attack_script_assets: &'a FighterAttackScriptAssets,
-        stage_collision: &'a StageCollision,
     ) -> UpdateContext<'a> {
-        let animation_root_motion_delta = animation_position_to_gameplay(
-            self.bone_matrices.root_motion_delta(),
-            &self.facing_direction,
-        );
-        let animation_root_position = self
-            .bone_matrices
-            .root_motion_position()
-            .map(|_| self.translation.0 + animation_root_motion_delta);
         UpdateContext {
             translation: &mut self.translation,
             prev_translation: &mut self.prev_translation,
-            input: &mut self.input,
+            input: &self.input,
             hitboxes: &mut self.hitboxes,
             velocity: &mut self.velocity,
-            surface: &mut self.surface,
             knockback_velocity: &mut self.knockback_velocity,
             game_settings,
-            animation_root_motion_delta,
-            animation_root_position,
             animation_frame: self.animation_frame.frame,
-            vulnerability: &mut self.vulnerability,
-            ledge_info: &mut self.ledge_information,
             fighter_attributes: attributes,
             attack_scripts,
             attack_script_assets,
-            facing_direction: &self.facing_direction,
-            stage_collision: &stage_collision,
         }
     }
 
     fn collision_context<'a>(
         &'a mut self,
         stage_collision: &'a StageCollision,
-        fighter_manifest: &'a FighterManifest,
-        game_settings: &'a GameSettings,
     ) -> CollisionContext<'a> {
-        let fighter_ledge_collision_box = FGRect {
-            origin: self.translation.0 + fighter_manifest.ledge_grab_box_start,
-            end: self.translation.0 + fighter_manifest.ledge_grab_box_end,
-        };
         CollisionContext {
             translation: &mut self.translation,
             prev_translation: &self.prev_translation,
-            presentation_snap: &mut self.presentation_snap,
-            input: &self.input,
             velocity: &mut self.velocity,
-            surface: &mut self.surface,
-            ecb: &mut self.ecb,
-            ledge_info: &mut self.ledge_information,
+            ecb: &self.ecb,
             prev_ecb: &self.prev_ecb,
             stage_collision,
-            leave_ground_ecb_lock_duration: game_settings
-                .fighter_common
-                .leave_ground_ecb_frame_lock_duration,
-            downward_stick_threshold: game_settings.input_common.run_stick_threshold,
-            fighter_ledge_collision_box,
         }
     }
 }
@@ -497,19 +316,13 @@ pub struct StatefulFighterQuery {
     pub animations: &'static FighterAnimations,
     pub fighter: &'static Fighter,
     pub attack_script_assets: &'static FighterAttackScriptAssets,
-    pub player: &'static Player,
     pub pending_hit_reaction: &'static mut FighterPendingHitReaction,
     pub hitstop: &'static mut FighterHitstop,
-    pub ledge_info: &'static mut FighterLedgeInformation,
-    pub hitstop_shake: &'static mut FighterHitstopShake,
-    pub pending_respawn: &'static mut FighterPendingRespawn,
-    pub damage: &'static mut FighterDamage,
 }
 
 pub fn state_update_system(
     mut query: Query<StatefulFighterQuery>,
     game_settings: Res<GameSettings>,
-    stage_collision: Res<StageCollision>,
     attack_scripts: Res<Assets<FighterAttackScript>>,
     manifests: Res<Assets<FighterManifest>>,
 ) {
@@ -533,7 +346,6 @@ pub fn state_update_system(
             &manifest.attributes,
             &attack_scripts,
             &fighter.attack_script_assets,
-            &stage_collision,
         );
         state.update(&mut update_ctx);
     }
@@ -545,31 +357,12 @@ fn transition_state(
     frame: &mut FighterFrameQueryItem,
     attributes: &FighterAttributes,
     attack_script_assets: &FighterAttackScriptAssets,
-    stage_collision: &StageCollision,
-    game_settings: &GameSettings,
-    baked_animations: &BakedFighterAnimations,
-    model_scale: FGi32,
 ) {
     let old_name = current.name();
     let new_name = next.name();
 
     current.on_exit(&mut frame.exit_context());
-    if let SurfacePolicy::Airborne(lock_policy) = next.surface_policy() {
-        frame.surface.apply_airborne_policy(
-            lock_policy,
-            game_settings
-                .fighter_common
-                .leave_ground_ecb_frame_lock_duration,
-        );
-    }
-    next.on_enter(&mut frame.enter_context(
-        attributes,
-        attack_script_assets,
-        game_settings,
-        stage_collision,
-        baked_animations,
-        model_scale,
-    ));
+    next.on_enter(&mut frame.enter_context(attributes, attack_script_assets));
     *current = next;
     info!("{} -> {}", old_name, new_name);
 }
@@ -579,8 +372,6 @@ pub fn state_interrupt_system(
     game_settings: Res<GameSettings>,
     baked_animations: Res<Assets<BakedFighterAnimations>>,
     fighter_manifests: Res<Assets<FighterManifest>>,
-    attack_scripts: Res<Assets<FighterAttackScript>>,
-    stage_collision: Res<StageCollision>,
 ) {
     for fighter in &mut query {
         let StatefulFighterQueryItem {
@@ -591,65 +382,38 @@ pub fn state_interrupt_system(
             attack_script_assets,
             mut pending_hit_reaction,
             mut hitstop,
-            mut hitstop_shake,
-            ..
         } = fighter;
         let manifest = fighter_manifests
             .get(&fighter.manifest)
             .expect("Fighter manifest should be valid");
-        let baked = baked_animations
-            .get(&animations.baked)
-            .expect("Animation should exist");
 
         let new_state = if let Some(reaction) = pending_hit_reaction.take() {
-            hitstop.remaining_frames = *reaction.victim_hitstop_frames;
-            let shake_frames = reaction
-                .victim_hitstop_frames
-                .calculate_shake_frames(&game_settings);
-            hitstop_shake.role = FighterHitstopShakeRole::Receiver;
-            hitstop_shake.total_frames = shake_frames;
-            hitstop_shake.remaining_frames = shake_frames;
-            hitstop_shake.kind = if state.is_visually_grounded() {
-                FighterHitstopShakeKind::Horizontal
-            } else {
-                FighterHitstopShakeKind::Vertical
-            };
-
-            let mut hitstop_kind = if frame.surface.is_grounded() {
-                hitstun::HitstopStateKind::Grounded
-            } else {
-                hitstun::HitstopStateKind::Airborne
-            };
-
-            if let hitstun::HitstopStateKind::Grounded = hitstop_kind {
-                let straight_up_angle = FGi32::lit("90.0");
-                if reaction.victim_hitstop_frames
-                    >= HitStop::new(game_settings.fighter_common.tumble_bounce_hitstop_threshold)
-                {
-                    hitstop_kind = hitstun::HitstopStateKind::Airborne;
-                // TODO: Use floor normal here
-                } else if reaction.launch_angle.abs_diff(straight_up_angle)
-                    < game_settings
-                        .fighter_common
-                        .attack_ground_to_airborne_transition_vertical_angle_threshold
-                {
-                    hitstop_kind = hitstun::HitstopStateKind::Airborne;
-                } else {
-                    // straight down is 270
-                    let straight_down_angle = FGi32::lit("270.0");
-                    let meteor_threshold = game_settings.fighter_common.meteor_angle_threshold;
-                    if (reaction.launch_angle - straight_down_angle).abs() <= meteor_threshold {
-                        // TODO: Floor bounce
-                        hitstop_kind = hitstun::HitstopStateKind::Airborne;
-                    }
+            hitstop.remaining_frames = *reaction.hitstop_frames;
+            let hitstop_kind = match &*state {
+                FighterState::Wait(value) => {
+                    hitstun::HitstopStateKind::Grounded(value.grounded_common.clone())
                 }
-            }
-
-            info!("Entering hitstop kind: {:?}", hitstop_kind);
-            Some(FighterState::Hitstun(HitstunState::new(
-                reaction,
+                FighterState::Walk(value) => {
+                    hitstun::HitstopStateKind::Grounded(value.grounded_common.clone())
+                }
+                FighterState::Dash(value) => {
+                    hitstun::HitstopStateKind::Grounded(value.ground_common.clone())
+                }
+                FighterState::Run(value) => {
+                    hitstun::HitstopStateKind::Grounded(value.grounded_common.clone())
+                }
+                FighterState::Turn(value) => {
+                    hitstun::HitstopStateKind::Grounded(value.grounded_common.clone())
+                }
+                FighterState::GroundAttack(value) => {
+                    hitstun::HitstopStateKind::Grounded(value.grounded_common.clone())
+                }
+                _ => hitstun::HitstopStateKind::Airborne,
+            };
+            Some(FighterState::Hitstun(HitstunState {
+                hit_reaction: reaction,
                 hitstop_kind,
-            )))
+            }))
         } else if hitstop.remaining_frames > 0 {
             None
         } else {
@@ -658,9 +422,6 @@ pub fn state_interrupt_system(
                 animations,
                 &baked_animations,
                 &manifest.attributes,
-                &stage_collision,
-                &attack_scripts,
-                attack_script_assets,
             ))
         };
 
@@ -671,10 +432,6 @@ pub fn state_interrupt_system(
                 &mut frame,
                 &manifest.attributes,
                 attack_script_assets,
-                &stage_collision,
-                &game_settings,
-                baked,
-                manifest.model_scale,
             );
         };
     }
@@ -684,106 +441,25 @@ pub fn state_collision_interrupt_system(
     mut query: Query<StatefulFighterQuery>,
     stage_collision: Res<StageCollision>,
     fighter_manifests: Res<Assets<FighterManifest>>,
-    game_settings: Res<GameSettings>,
-    match_config: Res<MatchConfig>,
-    mut match_state: ResMut<MatchState>,
-    stage_registry: Res<StageManifestRegistry>,
-    stage_manifests: Res<Assets<StageManifest>>,
-    baked_animations: Res<Assets<BakedFighterAnimations>>,
 ) {
-    let Some(stage_manifest_handle) = stage_registry.get(match_config.stage) else {
-        return;
-    };
-
-    let Some(stage_manifest) = stage_manifests.get(&stage_manifest_handle) else {
-        return;
-    };
-
     for fighter in &mut query {
         let StatefulFighterQueryItem {
             mut state,
             mut frame,
             fighter,
-            animations,
             attack_script_assets,
-            mut hitstop,
-            mut pending_respawn,
-            player,
-            mut damage,
-            mut ledge_info,
+            hitstop,
             ..
         } = fighter;
-
-        let manifest = fighter_manifests
-            .get(&fighter.manifest)
-            .expect("Fighter manifest should be valid");
-        let baked = baked_animations
-            .get(&animations.baked)
-            .expect("Animation should exist");
-
-        if pending_respawn.0 {
-            **pending_respawn = false;
-            let respawn_state = FighterState::Angel(angel::AngelState::new(
-                game_settings
-                    .fighter_common
-                    .angel_platform_invulnerability_duration,
-            ));
-
-            // Find the angel platform position
-            let respawn_point = stage_manifest
-                .respawn_points
-                .get(player.controller_port % stage_manifest.respawn_points.len());
-
-            if let None = respawn_point {
-                error!("Couldn't get a respawn point, falling back to the world origin");
-            }
-
-            let respawn_point = respawn_point.copied().unwrap_or(FGVec2::ZERO);
-
-            frame.translation.0 = respawn_point;
-            frame.presentation_snap.0 = true;
-
-            // Clear hitstop
-            hitstop.remaining_frames = 0;
-
-            // subtract one stock
-
-            let player_state = match_state.players.get_mut(player.handle).expect(&format!(
-                "Failed to get fighter for GGRS slot {} (controller port {})",
-                player.handle, player.controller_port
-            ));
-
-            if let Some(stocks_remaining) = &mut player_state.stocks_remaining {
-                *stocks_remaining = stocks_remaining.saturating_sub(1);
-            }
-
-            // reset percentage
-            *damage = FighterDamage::default();
-            // reset ledge
-
-            *ledge_info = FighterLedgeInformation::default();
-
-            transition_state(
-                &mut state,
-                respawn_state,
-                &mut frame,
-                &manifest.attributes,
-                attack_script_assets,
-                &stage_collision,
-                &game_settings,
-                baked,
-                manifest.model_scale,
-            );
-            continue;
-        }
-
         if hitstop.remaining_frames > 0 {
             continue;
         }
 
-        let new_state = state.check_collision_interrupt(
-            &mut frame.collision_context(&stage_collision, manifest, &game_settings),
-        );
+        let manifest = fighter_manifests
+            .get(&fighter.manifest)
+            .expect("Fighter manifest should be valid");
+        let new_state =
+            state.check_collision_interrupt(&mut frame.collision_context(&stage_collision));
         if let Some(new_state) = new_state {
             transition_state(
                 &mut state,
@@ -791,84 +467,7 @@ pub fn state_collision_interrupt_system(
                 &mut frame,
                 &manifest.attributes,
                 &attack_script_assets,
-                &stage_collision,
-                &game_settings,
-                baked,
-                manifest.model_scale,
             );
         }
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::fighter::ecb::FighterPreviousECB;
-    use crate::stage::line::{StageLedge, StageLedgeSide, StageVertexID};
-
-    #[test]
-    fn animation_positions_map_forward_to_facing_and_preserve_height() {
-        let position = FGVec3::lit("99", "3", "5");
-
-        assert_eq!(
-            animation_position_to_gameplay(position, &FighterFacingDirection::Right),
-            FGVec2::lit("5", "3")
-        );
-        assert_eq!(
-            animation_position_to_gameplay(position, &FighterFacingDirection::Left),
-            FGVec2::lit("-5", "3")
-        );
-    }
-
-    #[test]
-    fn ledge_lockout_suppresses_ledge_collision() {
-        let ledge_id = StageVertexID {
-            polygon: 0,
-            vertex: 0,
-        };
-        let stage_collision = StageCollision {
-            ledges: vec![StageLedge {
-                id: ledge_id,
-                position: FGVec2::ZERO,
-                hang_side: StageLedgeSide::Left,
-            }],
-            ..default()
-        };
-        let previous_translation = FighterPreviousTranslation::default();
-        let input = FighterInput::default();
-        let mut translation = FighterTranslation::default();
-        let mut velocity = FighterVelocity::default();
-        let mut surface = FighterSurfaceState::default();
-        let mut ecb = FighterECB::default();
-        let mut ledge_info = FighterLedgeInformation {
-            regrab_lockout_remaining_frames: 5,
-            ..default()
-        };
-        let previous_ecb = FighterPreviousECB::from(ecb);
-        let mut presentation_snap = FighterPresentationSnap::default();
-        let context = CollisionContext {
-            translation: &mut translation,
-            prev_translation: &previous_translation,
-            input: &input,
-            velocity: &mut velocity,
-            surface: &mut surface,
-            ecb: &mut ecb,
-            ledge_info: &mut ledge_info,
-            prev_ecb: &previous_ecb,
-            stage_collision: &stage_collision,
-            leave_ground_ecb_lock_duration: 0,
-            presentation_snap: &mut presentation_snap,
-            fighter_ledge_collision_box: FGRect {
-                origin: FGVec2::lit("-1", "1"),
-                end: FGVec2::lit("1", "-1"),
-            },
-            downward_stick_threshold: FGi32::ONE,
-        };
-
-        assert!(context.air_collide_with_ledges().is_none());
-        assert_eq!(
-            context.air_collide_with_ledges().map(|result| result.ledge),
-            Some(ledge_id)
-        );
-    }
-}

src/fighter/state/platform_pass.rs

@@ -1,62 +0,0 @@
-use super::{CollisionContext, EnterContext, FighterStateImpl, InterruptContext, UpdateContext};
-use crate::fighter::animation::AnimKind;
-use crate::fighter::state::air::AirborneStateCommon;
-use crate::fighter::state::{ExitContext, FighterState, air, jump};
-
-#[derive(Debug, Clone, Copy, Hash, Default)]
-pub struct PlatformPassState {
-    airborne_state_common: AirborneStateCommon,
-    ignored_polygon: usize,
-}
-
-impl PlatformPassState {
-    pub fn new(airborne_state_common: AirborneStateCommon, ignored_polygon: usize) -> Self {
-        Self {
-            airborne_state_common,
-            ignored_polygon
-        }
-    }
-}
-
-impl FighterStateImpl for PlatformPassState {
-    const NAME: &'static str = "PlatformPass";
-    
-    fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        jump::check_input_double_jump(state_context)
-    }
-
-    fn on_enter(&mut self, state_context: &mut EnterContext) {
-        state_context.surface.ignore_polygon(self.ignored_polygon, state_context.game_settings.fighter_common.platform_pass_platform_ignore_duration_frames);
-        state_context.velocity.y = state_context.game_settings.fighter_common.platform_pass_initial_downwards_velocity;
-        state_context.play_animation(AnimKind::PlatformPass, false);
-    }
-
-    fn on_exit(&mut self, state_context: &mut ExitContext) {
-        state_context.surface.clear_polygon_ignore(self.ignored_polygon);
-    }
-
-    fn update(&mut self, state_context: &mut UpdateContext) {
-        air::update_standard_motion(state_context, &mut self.airborne_state_common);
-    }
-
-    fn check_collision_interrupt(
-        &mut self,
-        state_context: &mut CollisionContext,
-    ) -> Option<FighterState> {
-        air::collision_interrupt(
-            state_context,
-            crate::fighter::state::land::LandingType::Normal,
-            true,
-        )
-    }
-    
-    fn is_visually_grounded<'a>(
-        &'a self,
-    ) -> bool {
-        false
-    }
-
-    fn surface_policy(&self) -> super::SurfacePolicy {
-        super::SurfacePolicy::Airborne(crate::fighter::surface::EcbLockPolicy::StartOnDetach)
-    }
-}

src/fighter/state/run.rs

@@ -6,14 +6,21 @@ use super::{
 };
 use crate::fighter::animation::AnimKind;
 use crate::fighter::state::FighterState;
+use crate::fighter::state::fall::FallState;
+use crate::fighter::state::ground::{GroundedMotionResult, GroundedStateCommon};
+use crate::math::int::FGi32;
 
 #[derive(Component, Debug, Clone, Hash)]
-pub struct RunState;
+pub struct RunState {
+    pub grounded_common: GroundedStateCommon,
+}
 
 impl FighterStateImpl for RunState {
     const NAME: &'static str = "Run";
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        if let Some(state) = ground::grounded_movement_common_interrupts(state_context) {
+        if let Some(state) =
+            ground::grounded_movement_common_interrupts(state_context, &self.grounded_common)
+        {
             return Some(state);
         }
 
@@ -23,7 +30,8 @@ impl FighterStateImpl for RunState {
         {
             None
         } else {
-            walk::check_input(state_context).or_else(|| wait::check_input(state_context))
+            walk::check_input(state_context, &self.grounded_common)
+                .or_else(|| wait::check_input(state_context, &self.grounded_common))
         }
     }
 
@@ -35,7 +43,7 @@ impl FighterStateImpl for RunState {
         let last_frame = state_context.input.get_last_frame();
         let (accel, target_vel) = state_context
             .fighter_attributes
-            .get_accel_and_target_dashrun(&last_frame, state_context.facing_direction.to_sign());
+            .get_accel_and_target_dashrun(&last_frame, FGi32::ONE);
         let accel = ground::compute_ground_accel(
             accel,
             target_vel,
@@ -48,6 +56,7 @@ impl FighterStateImpl for RunState {
         ground::apply_grounded_motion(
             state_context.velocity,
             state_context.translation,
+            state_context.prev_translation,
         );
     }
 
@@ -55,19 +64,26 @@ impl FighterStateImpl for RunState {
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, true)
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
+        if let GroundedMotionResult::InAir =
+            ground::collide_with_stage_grounded(state_context, &mut self.grounded_common, false)
+        {
+            Some(FighterState::Fall(FallState))
+        } else {
+            None
+        }
     }
 }
 
-pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
+pub fn check_input(
+    state_context: &InterruptContext,
+    ground_state_common: &GroundedStateCommon,
+) -> Option<FighterState> {
     let input_frame = state_context.input.get_last_frame();
     if input_frame.movement.x.abs() >= state_context.game_settings.input_common.run_stick_threshold
     {
-        return Some(FighterState::Run(RunState));
+        return Some(FighterState::Run(RunState {
+            grounded_common: ground_state_common.clone(),
+        }));
     }
     None
 }

src/fighter/state/turn.rs

@@ -1,11 +1,14 @@
 use super::{CollisionContext, EnterContext, FighterStateImpl, InterruptContext, UpdateContext};
 use crate::fighter::animation::AnimKind;
-use crate::fighter::state::ground;
+use crate::fighter::state::fall::FallState;
+use crate::fighter::state::ground::{self, GroundedMotionResult, GroundedStateCommon};
 use crate::fighter::state::{FighterState, dash, jump, wait, walk};
 use crate::input::FighterCommands;
 
 #[derive(Debug, Clone, Hash)]
-pub struct TurnState;
+pub struct TurnState {
+    pub grounded_common: GroundedStateCommon,
+}
 
 impl FighterStateImpl for TurnState {
     const NAME: &'static str = "Turn";
@@ -17,19 +20,19 @@ impl FighterStateImpl for TurnState {
                 .input_common
                 .turn_into_dashback_window as u32
         {
-            if let Some(state) = dash::check_input(state_context) {
+            if let Some(state) = dash::check_input(state_context, &self.grounded_common) {
                 return Some(state);
             }
         }
-        if let Some(state) = jump::check_input(state_context) {
+        if let Some(state) = jump::check_input(state_context, &self.grounded_common) {
             *state_context.facing_direction = state_context.facing_direction.reverse();
             Some(state)
         } else if state_context.is_current_animation_finished() {
-            if let Some(state) = dash::check_input(state_context) {
+            if let Some(state) = dash::check_input(state_context, &self.grounded_common) {
                 Some(state)
-            } else if let Some(state) = walk::check_input(state_context) {
+            } else if let Some(state) = walk::check_input(state_context, &self.grounded_common) {
                 Some(state)
-            } else if let Some(state) = wait::check_input(state_context) {
+            } else if let Some(state) = wait::check_input(state_context, &self.grounded_common) {
                 Some(state)
             } else {
                 None
@@ -45,22 +48,46 @@ impl FighterStateImpl for TurnState {
     }
 
     fn update(&mut self, state_context: &mut UpdateContext) {
-        ground::update_friction_motion(state_context);
+        let friction =
+            if state_context.velocity.x.abs() > state_context.fighter_attributes.max_walk_vel {
+                state_context.fighter_attributes.ground_friction
+                    * state_context
+                        .game_settings
+                        .fighter_common
+                        .ground_friction_over_walk_speed_multiplier
+            } else {
+                state_context.fighter_attributes.ground_friction
+            };
+
+        let ground_velocity = state_context.velocity.x;
+
+        state_context.velocity.x += ground::apply_grounded_friction(friction, ground_velocity);
+
+        ground::apply_grounded_motion(
+            state_context.velocity,
+            state_context.translation,
+            state_context.prev_translation,
+        );
     }
 
     fn check_collision_interrupt(
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, false)
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
+        if let GroundedMotionResult::InAir =
+            ground::collide_with_stage_grounded(state_context, &mut self.grounded_common, false)
+        {
+            Some(FighterState::Fall(FallState))
+        } else {
+            None
+        }
     }
 }
 
-pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
+pub fn check_input(
+    state_context: &InterruptContext,
+    grounded_common: &GroundedStateCommon,
+) -> Option<FighterState> {
     let input_frame = state_context.input.get_last_frame();
 
     let has_smash_input = state_context
@@ -74,7 +101,9 @@ pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
         && input_frame.movement.x.signum() != state_context.facing_direction.to_sign()
         && !has_smash_input
     {
-        return Some(FighterState::Turn(TurnState));
+        return Some(FighterState::Turn(TurnState {
+            grounded_common: grounded_common.clone(),
+        }));
     }
     None
 }

src/fighter/state/wait.rs

@@ -3,18 +3,25 @@ use super::{
 };
 use crate::fighter::animation::AnimKind;
 use crate::fighter::state::FighterState;
+use crate::fighter::state::fall::FallState;
+use crate::fighter::state::ground::{GroundedMotionResult, GroundedStateCommon};
 
 #[derive(Debug, Clone, Hash)]
-pub struct WaitState;
+pub struct WaitState {
+    pub grounded_common: GroundedStateCommon,
+}
 
 impl FighterStateImpl for WaitState {
     const NAME: &'static str = "Wait";
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        if let Some(state) = ground::grounded_movement_common_interrupts(state_context) {
-            Some(state)
-        } else if let Some(state) =
-            ground::grounded_movement_standstill_common_interrupts(state_context)
+        if let Some(state) =
+            ground::grounded_movement_common_interrupts(state_context, &self.grounded_common)
         {
+            Some(state)
+        } else if let Some(state) = ground::grounded_movement_standstill_common_interrupts(
+            state_context,
+            &self.grounded_common,
+        ) {
             // Don't transition into yourself
             if let FighterState::Wait(_) = state {
                 None
@@ -31,26 +38,52 @@ impl FighterStateImpl for WaitState {
     }
 
     fn update(&mut self, state_context: &mut UpdateContext) {
-        ground::update_friction_motion(state_context);
+        let friction =
+            if state_context.velocity.x.abs() > state_context.fighter_attributes.max_walk_vel {
+                state_context.fighter_attributes.ground_friction
+                    * state_context
+                        .game_settings
+                        .fighter_common
+                        .ground_friction_over_walk_speed_multiplier
+            } else {
+                state_context.fighter_attributes.ground_friction
+            };
+
+        let ground_velocity = state_context.velocity.x;
+
+        state_context.velocity.x += ground::apply_grounded_friction(friction, ground_velocity);
+
+        ground::apply_grounded_motion(
+            state_context.velocity,
+            state_context.translation,
+            state_context.prev_translation,
+        );
     }
 
     fn check_collision_interrupt(
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, false)
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
+        if let GroundedMotionResult::InAir =
+            ground::collide_with_stage_grounded(state_context, &mut self.grounded_common, false)
+        {
+            Some(FighterState::Fall(FallState))
+        } else {
+            None
+        }
     }
 }
 
-pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
+pub fn check_input(
+    state_context: &InterruptContext,
+    ground_state_common: &GroundedStateCommon,
+) -> Option<FighterState> {
     let input_frame = state_context.input.get_last_frame();
 
     if input_frame.movement.x.abs() < state_context.game_settings.input_common.stick_deadzone {
-        return Some(FighterState::Wait(WaitState));
+        return Some(FighterState::Wait(WaitState {
+            grounded_common: ground_state_common.clone(),
+        }));
     }
     None
 }

src/fighter/state/walk.rs

@@ -3,18 +3,25 @@ use super::{
     ground, wait,
 };
 use crate::fighter::animation::AnimKind;
-use crate::fighter::state::{self, FighterState};
+use crate::fighter::state::FighterState;
+use crate::fighter::state::fall::FallState;
+use crate::fighter::state::ground::{GroundedMotionResult, GroundedStateCommon};
 
 #[derive(Debug, Clone, Hash)]
-pub struct WalkState;
+pub struct WalkState {
+    pub grounded_common: GroundedStateCommon,
+}
 
 impl FighterStateImpl for WalkState {
     const NAME: &'static str = "Walk";
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
-        if let Some(state) = ground::grounded_movement_common_interrupts(state_context) {
+        if let Some(state) =
+            ground::grounded_movement_common_interrupts(state_context, &self.grounded_common)
+        {
             return Some(state);
         }
-        wait::check_input(state_context).or_else(|| dash::check_input(state_context)).or_else(|| state::ground_attack::check_interrupt(state_context))
+        wait::check_input(state_context, &self.grounded_common)
+            .or_else(|| dash::check_input(state_context, &self.grounded_common))
     }
 
     fn on_enter(&mut self, state_context: &mut EnterContext) {
@@ -40,6 +47,7 @@ impl FighterStateImpl for WalkState {
         ground::apply_grounded_motion(
             state_context.velocity,
             state_context.translation,
+            state_context.prev_translation,
         );
     }
 
@@ -47,19 +55,26 @@ impl FighterStateImpl for WalkState {
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        ground::collision_interrupt(state_context, false)
-    }
-
-    fn is_visually_grounded<'a>(&'a self) -> bool {
-        true
+        if let GroundedMotionResult::InAir =
+            ground::collide_with_stage_grounded(state_context, &mut self.grounded_common, false)
+        {
+            Some(FighterState::Fall(FallState))
+        } else {
+            None
+        }
     }
 }
 
-pub fn check_input(state_context: &InterruptContext) -> Option<FighterState> {
+pub fn check_input(
+    state_context: &InterruptContext,
+    ground_state_common: &GroundedStateCommon,
+) -> Option<FighterState> {
     let input_frame = state_context.input.get_last_frame();
 
     if !input_frame.movement.x.is_zero() {
-        return Some(FighterState::Walk(WalkState));
+        return Some(FighterState::Walk(WalkState {
+            grounded_common: ground_state_common.clone(),
+        }));
     }
 
     None

src/fighter/surface.rs

@@ -1,235 +0,0 @@
-use bevy::prelude::*;
-
-use crate::{fighter::FighterLedgeInformation, stage::line::StageLineID};
-
-#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
-pub enum EcbLockPolicy {
-    StartOnDetach,
-    Restart,
-    Preserve,
-    Clear,
-}
-
-/// The stage surface currently supporting a fighter.
-///
-/// This is physics state rather than fighter-state-machine state. Keeping it
-/// separate means grounded, landing, and hitstun states all share one source
-/// of truth for stage contact.
-#[derive(Clone, Debug, Hash, PartialEq, Eq)]
-pub struct IgnoredPolygon {
-    pub polygon: usize,
-    pub frames_remaining: u32,
-}
-
-#[derive(Component, Clone, Debug, Hash, PartialEq, Eq)]
-pub enum FighterSurfaceState {
-    Airborne {
-        ecb_lock_frames_remaining: u32,
-        ignored_polys: Vec<IgnoredPolygon>,
-    },
-    Grounded {
-        line_id: StageLineID,
-    },
-}
-
-impl Default for FighterSurfaceState {
-    fn default() -> Self {
-        Self::Airborne {
-            ecb_lock_frames_remaining: 0,
-            ignored_polys: vec![],
-        }
-    }
-}
-
-impl FighterSurfaceState {
-    pub fn is_grounded(&self) -> bool {
-        matches!(self, Self::Grounded { .. })
-    }
-
-    pub fn line_id(&self) -> Option<StageLineID> {
-        match self {
-            Self::Airborne { .. } => None,
-            Self::Grounded { line_id } => Some(*line_id),
-        }
-    }
-
-    pub(crate) fn land(&mut self, line_id: StageLineID, ledge_info: &mut FighterLedgeInformation) {
-        *self = Self::Grounded { line_id };
-        ledge_info.grab_count = 0;
-    }
-
-    pub fn clear_polygon_ignore(&mut self, polygon: usize) {
-        let Self::Airborne { ignored_polys, .. } = self else {
-            return;
-        };
-
-        ignored_polys.retain(|element| element.polygon != polygon);
-    }
-    
-    pub fn ignore_polygon(&mut self, polygon: usize, duration_frames: u32) {
-        let Self::Airborne { ignored_polys, .. } = self else {
-            return;
-        };
-
-        if duration_frames == 0 {
-            return;
-        }
-
-        if let Some(ignored) = ignored_polys.iter_mut().find(|ignored| ignored.polygon == polygon) {
-            ignored.frames_remaining = duration_frames;
-        } else {
-            ignored_polys.push(IgnoredPolygon {
-                polygon,
-                frames_remaining: duration_frames,
-            });
-        }
-    }
-
-    pub fn is_polygon_ignored(&self, polygon: usize) -> bool {
-        matches!(self, Self::Airborne { ignored_polys, .. }
-            if ignored_polys.iter().any(|ignored| ignored.polygon == polygon))
-    }
-
-    pub(crate) fn ignored_polygon_ids(&self) -> Vec<usize> {
-        match self {
-            Self::Airborne { ignored_polys, .. } => {
-                ignored_polys.iter().map(|ignored| ignored.polygon).collect()
-            }
-            Self::Grounded { .. } => vec![],
-        }
-    }
-
-    pub(crate) fn apply_airborne_policy(
-        &mut self,
-        policy: EcbLockPolicy,
-        ecb_lock_duration: u32,
-    ) {
-        let current_lock = match self {
-            Self::Airborne { ecb_lock_frames_remaining, .. } => *ecb_lock_frames_remaining,
-            Self::Grounded { .. } => 0,
-        };
-        let ecb_lock_frames_remaining = match policy {
-            EcbLockPolicy::StartOnDetach if self.is_grounded() => ecb_lock_duration,
-            EcbLockPolicy::StartOnDetach => current_lock,
-            EcbLockPolicy::Restart => ecb_lock_duration,
-            EcbLockPolicy::Preserve => current_lock,
-            EcbLockPolicy::Clear => 0,
-        };
-        let ignored_polys = match self {
-            Self::Airborne { ignored_polys, .. } => ignored_polys.clone(),
-            Self::Grounded { .. } => vec![],
-        };
-        *self = Self::Airborne { ecb_lock_frames_remaining, ignored_polys };
-    }
-
-    pub(crate) fn tick_ecb_lock(&mut self) {
-        if let Self::Airborne { ecb_lock_frames_remaining, .. } = self {
-            *ecb_lock_frames_remaining = ecb_lock_frames_remaining.saturating_sub(1);
-        }
-    }
-
-    pub(crate) fn tick_ignored_polygons(&mut self) {
-        if let Self::Airborne { ignored_polys, .. } = self {
-            for ignored in ignored_polys.iter_mut() {
-                ignored.frames_remaining = ignored.frames_remaining.saturating_sub(1);
-            }
-            ignored_polys.retain(|ignored| ignored.frames_remaining > 0);
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn contact_lifecycle_has_one_source_of_truth() {
-        let mut surface = FighterSurfaceState::default();
-        assert!(!surface.is_grounded());
-        assert_eq!(surface.line_id(), None);
-
-        let line_id = StageLineID {
-            polygon: 2,
-            segment: 3,
-        };
-        let mut ledge_info = FighterLedgeInformation {
-            regrab_lockout_remaining_frames: 0,
-            grab_count: 0,
-        };
-        surface.land(line_id, &mut ledge_info);
-        assert!(surface.is_grounded());
-        assert_eq!(surface.line_id(), Some(line_id));
-
-        surface.apply_airborne_policy(EcbLockPolicy::Clear, 0);
-        assert!(!surface.is_grounded());
-        assert_eq!(surface.line_id(), None);
-    }
-
-    #[test]
-    fn start_on_detach_does_not_reset_an_existing_lock() {
-        let mut surface = FighterSurfaceState::default();
-        surface.apply_airborne_policy(EcbLockPolicy::Restart, 5);
-        surface.tick_ecb_lock();
-        surface.apply_airborne_policy(EcbLockPolicy::StartOnDetach, 5);
-
-        assert_eq!(
-            surface,
-            FighterSurfaceState::Airborne {
-                ecb_lock_frames_remaining: 4,
-                ignored_polys: vec![],
-            }
-        );
-    }
-
-    #[test]
-    fn restart_retriggers_an_existing_lock() {
-        let mut surface = FighterSurfaceState::default();
-        surface.apply_airborne_policy(EcbLockPolicy::Restart, 5);
-        surface.tick_ecb_lock();
-        surface.apply_airborne_policy(EcbLockPolicy::Restart, 5);
-
-        assert_eq!(
-            surface,
-            FighterSurfaceState::Airborne {
-                ecb_lock_frames_remaining: 5,
-                ignored_polys: vec![],
-            }
-        );
-    }
-
-    #[test]
-    fn ignored_polygon_expires_after_requested_frames() {
-        let mut surface = FighterSurfaceState::default();
-        surface.ignore_polygon(3, 2);
-
-        assert!(surface.is_polygon_ignored(3));
-        surface.tick_ignored_polygons();
-        assert!(surface.is_polygon_ignored(3));
-        surface.tick_ignored_polygons();
-        assert!(!surface.is_polygon_ignored(3));
-    }
-
-    #[test]
-    fn ignoring_polygon_refreshes_existing_entry() {
-        let mut surface = FighterSurfaceState::default();
-        surface.ignore_polygon(3, 2);
-        surface.ignore_polygon(3, 5);
-        surface.tick_ignored_polygons();
-        surface.tick_ignored_polygons();
-        assert!(surface.is_polygon_ignored(3));
-    }
-
-    #[test]
-    fn airborne_policy_preserves_ignored_polygons_and_landing_clears_them() {
-        let mut surface = FighterSurfaceState::default();
-        surface.ignore_polygon(3, 5);
-        surface.apply_airborne_policy(EcbLockPolicy::Restart, 2);
-        assert!(surface.is_polygon_ignored(3));
-        let mut ledge_info = FighterLedgeInformation {
-            regrab_lockout_remaining_frames: 0,
-            grab_count: 0,
-        };
-        surface.land(StageLineID { polygon: 0, segment: 0 }, &mut ledge_info);
-        assert!(!surface.is_polygon_ignored(3));
-    }
-}

src/fighter/visual.rs

@@ -1,8 +1,4 @@
-use crate::{
-    fighter::{FighterInvulnerabilityState, baked_animation::BakedFighterAnimations},
-    game_settings::GameSettings,
-    materials::fighter_material::{FighterMaterial, FighterMesh},
-};
+use crate::fighter::baked_animation::BakedFighterAnimations;
 use bevy::prelude::*;
 
 #[derive(Component, Clone)]
@@ -10,82 +6,3 @@ pub struct FighterAnimations {
     /// The single animation source for gameplay and the visual skeleton.
     pub baked: Handle<BakedFighterAnimations>,
 }
-
-#[derive(Clone, Copy, Default, PartialEq)]
-pub enum LastKnownInvulnerabilityState {
-    #[default]
-    Vulnerable,
-    Intangible,
-    Invulnerable,
-}
-
-impl From<&FighterInvulnerabilityState> for LastKnownInvulnerabilityState {
-    fn from(value: &FighterInvulnerabilityState) -> Self {
-        match value {
-            FighterInvulnerabilityState::Vulnerable => Self::Vulnerable,
-            FighterInvulnerabilityState::Invulnerable { .. } => Self::Invulnerable,
-            FighterInvulnerabilityState::Intangible { .. } => Self::Intangible,
-        }
-    }
-}
-
-#[derive(Component, Clone, Default)]
-pub struct FighterInvulnerabilityVisualState {
-    pub last_known_state: LastKnownInvulnerabilityState,
-    pub frames_in_state: u32,
-}
-
-pub fn update_status_colors(
-    mut fighters: Query<(
-        &FighterInvulnerabilityState,
-        &mut FighterInvulnerabilityVisualState,
-    )>,
-    meshes: Query<(&FighterMesh, &MeshMaterial3d<FighterMaterial>)>,
-    mut materials: ResMut<Assets<FighterMaterial>>,
-    game_settings: Res<GameSettings>,
-) {
-    for (invuln_state, mut invuln_state_visual) in &mut fighters {
-        let curr_state = invuln_state.into();
-        let last_known_state = invuln_state_visual.last_known_state;
-        if curr_state != last_known_state {
-            invuln_state_visual.last_known_state = curr_state;
-            invuln_state_visual.frames_in_state = 0;
-        }
-    }
-    for (mesh, mat) in meshes {
-        let (_, invuln_state_visual) = fighters
-            .get(mesh.fighter)
-            .expect("Material should have relevant fighter available");
-
-        let status_color = match invuln_state_visual.last_known_state {
-            LastKnownInvulnerabilityState::Vulnerable => bevy::color::palettes::css::WHITE.into(),
-            LastKnownInvulnerabilityState::Invulnerable => {
-                game_settings.fighter_common.intangible_color
-            }
-            LastKnownInvulnerabilityState::Intangible => {
-                game_settings.fighter_common.intangible_color
-            }
-        };
-
-        let intensity = match invuln_state_visual.last_known_state {
-            LastKnownInvulnerabilityState::Vulnerable => 0.0,
-            LastKnownInvulnerabilityState::Invulnerable | LastKnownInvulnerabilityState::Intangible => {
-                let cycle_frames = invuln_state_visual.frames_in_state
-                    % game_settings.fighter_common.intangible_pulse_duration;
-                1.0 - cycle_frames as f32
-                    / ((game_settings.fighter_common.intangible_pulse_duration) as f32)
-            }
-        };
-
-        let mut material = materials
-            .get_mut(mat.id())
-            .expect("Material should exist here...");
-        material
-            .extension
-            .update_status_color(status_color.into(), intensity);
-    }
-
-    for (_, mut invuln_state_visual) in fighters {
-        invuln_state_visual.frames_in_state = invuln_state_visual.frames_in_state.saturating_add(1);
-    }
-}

src/filled_gizmo.wgsl

@@ -1,30 +0,0 @@
-#import bevy_pbr::mesh_functions::{get_world_from_local, mesh_position_local_to_clip}
-
-@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> material_color: vec4<f32>;
-
-struct Vertex {
-    @builtin(instance_index) instance_index: u32,
-    @location(0) position: vec3<f32>,
-    @location(1) color: vec4<f32>,
-};
-
-struct VertexOutput {
-    @builtin(position) clip_position: vec4<f32>,
-    @location(0) color: vec4<f32>,
-};
-
-@vertex
-fn vertex(vertex: Vertex) -> VertexOutput {
-    var output: VertexOutput;
-    output.clip_position = mesh_position_local_to_clip(
-        get_world_from_local(vertex.instance_index),
-        vec4<f32>(vertex.position, 1.0),
-    );
-    output.color = vertex.color;
-    return output;
-}
-
-@fragment
-fn fragment(input: VertexOutput) -> @location(0) vec4<f32> {
-    return material_color * input.color;
-}

src/filled_gizmos.rs

@@ -1,417 +0,0 @@
-//! Immediate-mode filled debug geometry.
-//!
-//! Unlike Bevy's line-only `Gizmos`, this collects triangles into one dynamic
-//! mesh. It is intended for small, transient debug overlays rather than game
-//! geometry.
-
-use std::f32::consts::{FRAC_PI_2, PI, TAU};
-
-use bevy::{
-    asset::{load_internal_asset, uuid_handle, RenderAssetUsages},
-    camera::visibility::NoFrustumCulling,
-    ecs::system::SystemParam,
-    mesh::{Indices, MeshVertexBufferLayoutRef, PrimitiveTopology},
-    pbr::{MaterialPipeline, MaterialPipelineKey},
-    prelude::*,
-    render::render_resource::{
-        AsBindGroup, RenderPipelineDescriptor, SpecializedMeshPipelineError,
-    },
-    shader::ShaderRef,
-};
-
-const SPHERE_SECTORS: usize = 16;
-const SPHERE_STACKS: usize = 8;
-const CAPSULE_SECTORS: usize = 16;
-const CAPSULE_HEMISPHERE_STEPS: usize = 4;
-
-#[derive(Default)]
-struct FilledGizmoGeometry {
-    positions: Vec<[f32; 3]>,
-    normals: Vec<[f32; 3]>,
-    colors: Vec<[f32; 4]>,
-    indices: Vec<u32>,
-}
-
-#[derive(Resource, Default)]
-struct FilledGizmoBuffer {
-    /// Geometry requested by the current schedule invocation.
-    pending: FilledGizmoGeometry,
-    /// The last completed fixed-timestep geometry. This is retained between
-    /// render frames, just like Bevy's fixed-timestep gizmos.
-    retained: FilledGizmoGeometry,
-    mesh: Option<Handle<Mesh>>,
-    fixed_commit: bool,
-}
-
-/// Immediate-mode API for drawing filled debug shapes.
-#[derive(SystemParam)]
-pub struct FilledGizmos<'w> {
-    buffer: ResMut<'w, FilledGizmoBuffer>,
-}
-
-impl FilledGizmos<'_> {
-    /// Draw a filled planar polygon. Vertices must be ordered around the
-    /// perimeter and the polygon must be convex.
-    pub fn polygon(&mut self, vertices: &[Vec3], color: impl Into<Color> + Copy) {
-        if vertices.len() < 3 {
-            return;
-        }
-        let color = color.into().to_linear().to_f32_array();
-        let normal = (vertices[1] - vertices[0])
-            .cross(vertices[2] - vertices[0])
-            .normalize_or_zero();
-        let base = self.buffer.pending.positions.len() as u32;
-        for &vertex in vertices {
-            self.push_vertex(vertex, normal, color);
-        }
-        for index in 2..vertices.len() as u32 {
-            self.buffer
-                .pending
-                .indices
-                .extend([base, base + index - 1, base + index]);
-        }
-    }
-
-    pub fn sphere(&mut self, isometry: Isometry3d, radius: f32, color: impl Into<Color> + Copy) {
-        if radius <= 0.0 {
-            return;
-        }
-        let color = color.into().to_linear().to_f32_array();
-        let base = self.buffer.pending.positions.len() as u32;
-        for stack in 0..=SPHERE_STACKS {
-            let latitude = PI * 0.5 - stack as f32 * PI / SPHERE_STACKS as f32;
-            let (sin_lat, cos_lat) = latitude.sin_cos();
-            for sector in 0..=SPHERE_SECTORS {
-                let longitude = sector as f32 * TAU / SPHERE_SECTORS as f32;
-                let (sin_lon, cos_lon) = longitude.sin_cos();
-                let normal = Vec3::new(cos_lat * cos_lon, sin_lat, cos_lat * sin_lon);
-                self.push_vertex(
-                    isometry.transform_point(normal * radius).into(),
-                    isometry.rotation * normal,
-                    color,
-                );
-            }
-        }
-        let stride = SPHERE_SECTORS + 1;
-        for stack in 0..SPHERE_STACKS {
-            for sector in 0..SPHERE_SECTORS {
-                let a = base + (stack * stride + sector) as u32;
-                let b = a + stride as u32;
-                self.buffer
-                    .pending
-                    .indices
-                    .extend([a, b, a + 1, a + 1, b, b + 1]);
-            }
-        }
-    }
-
-    pub fn capsule(
-        &mut self,
-        isometry: Isometry3d,
-        radius: f32,
-        half_length: f32,
-        color: impl Into<Color> + Copy,
-    ) {
-        let transform = Mat4::from_scale_rotation_translation(
-            Vec3::ONE,
-            isometry.rotation,
-            isometry.translation.into(),
-        );
-        self.affine_capsule(transform, radius, half_length, color);
-    }
-
-    /// Draw a capsule transformed by an arbitrary affine transform.
-    pub fn affine_capsule(
-        &mut self,
-        transform: Mat4,
-        radius: f32,
-        half_length: f32,
-        color: impl Into<Color> + Copy,
-    ) {
-        if radius <= 0.0 {
-            return;
-        }
-        let color = color.into().to_linear().to_f32_array();
-        let base = self.buffer.pending.positions.len() as u32;
-        let mut rings = Vec::new();
-        for step in 1..=CAPSULE_HEMISPHERE_STEPS {
-            let angle = -FRAC_PI_2 + step as f32 * FRAC_PI_2 / CAPSULE_HEMISPHERE_STEPS as f32;
-            rings.push((
-                radius * angle.cos(),
-                -half_length + radius * angle.sin(),
-                angle.sin(),
-            ));
-        }
-        rings.push((radius, half_length, 0.0));
-        for step in 1..CAPSULE_HEMISPHERE_STEPS {
-            let angle = step as f32 * FRAC_PI_2 / CAPSULE_HEMISPHERE_STEPS as f32;
-            rings.push((
-                radius * angle.cos(),
-                half_length + radius * angle.sin(),
-                angle.sin(),
-            ));
-        }
-
-        let mut ring_indices = Vec::new();
-        let bottom_pole = self.push_capsule_vertex(
-            &mut ring_indices,
-            transform,
-            Vec3::NEG_Y,
-            -half_length,
-            radius,
-            color,
-        );
-        for &(ring_radius, y, normal_y) in &rings {
-            let mut ring = Vec::with_capacity(CAPSULE_SECTORS);
-            for sector in 0..CAPSULE_SECTORS {
-                let angle = sector as f32 * TAU / CAPSULE_SECTORS as f32;
-                let (sin, cos) = angle.sin_cos();
-                let normal = Vec3::new(
-                    cos * (1.0 - normal_y * normal_y).sqrt(),
-                    normal_y,
-                    sin * (1.0 - normal_y * normal_y).sqrt(),
-                );
-                ring.push(self.push_transformed_vertex(
-                    transform,
-                    Vec3::new(cos * ring_radius, y, sin * ring_radius),
-                    normal,
-                    color,
-                ));
-            }
-            ring_indices.push(ring);
-        }
-        let top_pole = self.push_capsule_vertex(
-            &mut ring_indices,
-            transform,
-            Vec3::Y,
-            half_length,
-            radius,
-            color,
-        );
-        for sector in 0..CAPSULE_SECTORS {
-            let next = (sector + 1) % CAPSULE_SECTORS;
-            self.buffer.pending.indices.extend([
-                bottom_pole,
-                ring_indices[0][next],
-                ring_indices[0][sector],
-            ]);
-            for ring in ring_indices.windows(2) {
-                self.buffer.pending.indices.extend([
-                    ring[0][sector],
-                    ring[0][next],
-                    ring[1][sector],
-                    ring[1][sector],
-                    ring[0][next],
-                    ring[1][next],
-                ]);
-            }
-            let last = ring_indices.len() - 1;
-            self.buffer.pending.indices.extend([
-                ring_indices[last][sector],
-                ring_indices[last][next],
-                top_pole,
-            ]);
-        }
-        // Keep the base used by this shape observable to avoid accidental
-        // future changes making the generated indices refer to another shape.
-        debug_assert!(base <= bottom_pole);
-    }
-
-    fn push_capsule_vertex(
-        &mut self,
-        _rings: &mut Vec<Vec<u32>>,
-        transform: Mat4,
-        normal: Vec3,
-        y: f32,
-        radius: f32,
-        color: [f32; 4],
-    ) -> u32 {
-        self.push_transformed_vertex(
-            transform,
-            Vec3::new(0.0, y + normal.y * radius, 0.0),
-            normal,
-            color,
-        )
-    }
-
-    fn push_transformed_vertex(
-        &mut self,
-        transform: Mat4,
-        position: Vec3,
-        normal: Vec3,
-        color: [f32; 4],
-    ) -> u32 {
-        let transformed_normal = transform
-            .inverse()
-            .transpose()
-            .transform_vector3(normal)
-            .normalize_or_zero();
-        let index = self.buffer.pending.positions.len() as u32;
-        self.push_vertex(
-            transform.transform_point3(position),
-            transformed_normal,
-            color,
-        );
-        index
-    }
-
-    fn push_vertex(&mut self, position: Vec3, normal: Vec3, color: [f32; 4]) {
-        self.buffer.pending.positions.push(position.to_array());
-        self.buffer.pending.normals.push(normal.to_array());
-        self.buffer.pending.colors.push(color);
-    }
-}
-
-pub struct FilledGizmosPlugin;
-
-const FILLED_GIZMO_SHADER_HANDLE: Handle<Shader> =
-    uuid_handle!("0e4a979f-ea11-4e5a-91cd-19c89d4e9b53");
-
-/// A deliberately minimal material: unlike `StandardMaterial`, its fragment
-/// shader writes vertex colors directly and therefore bypasses PBR lighting
-/// and camera tonemapping.
-#[derive(Asset, AsBindGroup, Reflect, Clone, Debug)]
-struct FilledGizmoMaterial {
-    #[uniform(0)]
-    color: LinearRgba,
-}
-
-impl Material for FilledGizmoMaterial {
-    fn vertex_shader() -> ShaderRef {
-        FILLED_GIZMO_SHADER_HANDLE.clone().into()
-    }
-
-    fn fragment_shader() -> ShaderRef {
-        FILLED_GIZMO_SHADER_HANDLE.clone().into()
-    }
-
-    fn alpha_mode(&self) -> AlphaMode {
-        AlphaMode::Blend
-    }
-
-    fn enable_prepass() -> bool {
-        false
-    }
-
-    fn enable_shadows() -> bool {
-        false
-    }
-
-    fn specialize(
-        _pipeline: &MaterialPipeline,
-        descriptor: &mut RenderPipelineDescriptor,
-        layout: &MeshVertexBufferLayoutRef,
-        _key: MaterialPipelineKey<Self>,
-    ) -> Result<(), SpecializedMeshPipelineError> {
-        descriptor.vertex.buffers = vec![layout.0.get_layout(&[
-            Mesh::ATTRIBUTE_POSITION.at_shader_location(0),
-            Mesh::ATTRIBUTE_COLOR.at_shader_location(1),
-        ])?];
-        descriptor.primitive.cull_mode = None;
-        Ok(())
-    }
-}
-
-impl Plugin for FilledGizmosPlugin {
-    fn build(&self, app: &mut App) {
-        load_internal_asset!(
-            app,
-            FILLED_GIZMO_SHADER_HANDLE,
-            "filled_gizmo.wgsl",
-            Shader::from_wgsl
-        );
-        app.add_plugins(MaterialPlugin::<FilledGizmoMaterial>::default())
-            .init_resource::<FilledGizmoBuffer>()
-            .add_systems(Startup, setup_filled_gizmo_mesh)
-            .add_systems(FixedFirst, begin_fixed_filled_gizmos)
-            .add_systems(FixedLast, commit_fixed_filled_gizmos)
-            .add_systems(Last, upload_filled_gizmo_mesh);
-    }
-}
-
-fn setup_filled_gizmo_mesh(
-    mut commands: Commands,
-    mut meshes: ResMut<Assets<Mesh>>,
-    mut materials: ResMut<Assets<FilledGizmoMaterial>>,
-    mut buffer: ResMut<FilledGizmoBuffer>,
-) {
-    let mesh = meshes.add(
-        Mesh::new(
-            PrimitiveTopology::TriangleList,
-            RenderAssetUsages::default(),
-        )
-        .with_inserted_attribute(Mesh::ATTRIBUTE_POSITION, vec![[0.0; 3]; 3])
-        .with_inserted_attribute(Mesh::ATTRIBUTE_NORMAL, vec![[0.0, 0.0, 1.0]; 3])
-        .with_inserted_attribute(Mesh::ATTRIBUTE_COLOR, vec![[0.0, 0.0, 0.0, 0.0]; 3])
-        .with_inserted_indices(Indices::U32(vec![0, 1, 2])),
-    );
-    let material = materials.add(FilledGizmoMaterial {
-        color: LinearRgba::WHITE,
-    });
-    commands.spawn((
-        Mesh3d(mesh.clone()),
-        MeshMaterial3d(material),
-        NoFrustumCulling,
-    ));
-    buffer.mesh = Some(mesh);
-}
-
-fn begin_fixed_filled_gizmos(mut buffer: ResMut<FilledGizmoBuffer>) {
-    buffer.pending = FilledGizmoGeometry::default();
-    buffer.fixed_commit = false;
-}
-
-fn commit_fixed_filled_gizmos(mut buffer: ResMut<FilledGizmoBuffer>) {
-    let pending = std::mem::take(&mut buffer.pending);
-    buffer.pending = std::mem::replace(&mut buffer.retained, pending);
-    buffer.fixed_commit = true;
-}
-
-fn upload_filled_gizmo_mesh(
-    mut meshes: ResMut<Assets<Mesh>>,
-    mut buffer: ResMut<FilledGizmoBuffer>,
-) {
-    // No fixed tick and no render-frame requests means the existing mesh is
-    // already the correct image. In particular, do not replace it with the
-    // empty placeholder between fixed updates.
-    if !buffer.fixed_commit && buffer.pending.positions.is_empty() {
-        return;
-    }
-    let Some(handle) = buffer.mesh.clone() else {
-        return;
-    };
-
-    let (positions, normals, colors, indices) = if buffer.fixed_commit {
-        // Retained geometry must remain in the CPU-side buffer after upload;
-        // otherwise the next render frame would have nothing to draw.
-        (
-            buffer.retained.positions.clone(),
-            buffer.retained.normals.clone(),
-            buffer.retained.colors.clone(),
-            buffer.retained.indices.clone(),
-        )
-    } else {
-        (
-            std::mem::take(&mut buffer.pending.positions),
-            std::mem::take(&mut buffer.pending.normals),
-            std::mem::take(&mut buffer.pending.colors),
-            std::mem::take(&mut buffer.pending.indices),
-        )
-    };
-
-    if let Some(mut mesh) = meshes.get_mut(&handle) {
-        if positions.is_empty() {
-            mesh.insert_attribute(Mesh::ATTRIBUTE_POSITION, vec![[0.0; 3]; 3]);
-            mesh.insert_attribute(Mesh::ATTRIBUTE_NORMAL, vec![[0.0, 0.0, 1.0]; 3]);
-            mesh.insert_attribute(Mesh::ATTRIBUTE_COLOR, vec![[0.0, 0.0, 0.0, 0.0]; 3]);
-            mesh.insert_indices(Indices::U32(vec![0, 1, 2]));
-        } else {
-            mesh.insert_attribute(Mesh::ATTRIBUTE_POSITION, positions);
-            mesh.insert_attribute(Mesh::ATTRIBUTE_NORMAL, normals);
-            mesh.insert_attribute(Mesh::ATTRIBUTE_COLOR, colors);
-            mesh.insert_indices(Indices::U32(indices));
-        }
-    }
-    buffer.pending = FilledGizmoGeometry::default();
-    buffer.fixed_commit = false;
-}

src/game_settings.rs

@@ -9,63 +9,12 @@ use crate::{math::int::FGi32, menus::style::FGUiStyle};
 #[reflect(opaque)]
 pub struct FighterSettingsCommon {
     pub walk_speed_ease: FGi32,
-
-    /// Horizontal position nudge applied to each overlapping grounded fighter.
-    pub grounded_push_nudge: FGi32,
-
-    /// Maximum allowed horizontal velocity
     pub ground_max_horizontal_velocity: FGi32,
-
-    /// Ground friction applied when the fighter is above the walk speed
     pub ground_friction_over_walk_speed_multiplier: FGi32,
     pub knockback_stacking_window: u32,
     pub knockback_decay_per_frame: FGi32,
-
-    /// Multiplier that translates knockback -> game unit velocity
     pub knockback_launch_velocity_multiplier: FGi32,
     pub hitstun_frames_per_unit_knockback: FGi32,
-
-    /// If an attack's hitstop > this value it will cause a grounded fighter to either bounce (if a meteor/spike)
-    /// or to become airborne
-    pub tumble_bounce_hitstop_threshold: u32,
-
-    /// Angle diff from straight down under which the attack will count as a meteor
-    pub meteor_angle_threshold: FGi32,
-
-    /// Angle diff from straight up under which the attack will force an airborne state 
-    pub attack_ground_to_airborne_transition_vertical_angle_threshold: FGi32,
-    pub visual_shake_frames_per_hitstop_frame: FGi32,
-    // offsets applied when the fighter is in hitstop
-    pub visual_shake_table: Vec<f32>,
-    /// The attacker will always get less hitstop
-    pub attacker_visual_shake_multiplier: f32,
-    
-    /// Maximum angle changed caused by directional influence
-    pub di_max_angle: FGi32,
-    pub leave_ground_ecb_frame_lock_duration: u32,
-    pub platform_pass_platform_ignore_duration_frames: u32,
-    pub platform_pass_initial_downwards_velocity: FGi32,
-    
-    pub intangible_color: Color,
-    pub intangible_pulse_duration: u32,
-    
-    pub angel_platform_invulnerability_duration: u32,
-    
-    /// Frames during which a fighter cannot grab any ledge after dropping from one.
-    pub ledge_drop_regrab_lockout_duration_frames: u32,
-    /// How many frames (+ the ledge animation duration) the fighter will be invulnerable after grabbing the ledge
-    pub ledge_grab_invulnerability_duration: u32,
-    /// How many times the fighter can grab the ledge without landing and still get invulnerability
-    pub max_ledge_grab_count: u32,
-
-    /// When hit while the receiver is in the air, use this angle
-    pub sakurai_angle_aerial_angle: FGi32,
-    /// When hit while the receiver is in the ground and at low knockback, use this angle
-    pub sakurai_angle_low_knockback_angle: FGi32,
-    /// When hit while the receiver is in the ground and at high knockback, use this angle
-    pub sakurai_angle_high_knockback_angle: FGi32,
-    /// past this threshold, the knockback is considered high, so it will use [sakurai_angle_high_knockback_angle]
-    pub sakurai_angle_knockback_threshold: FGi32,
 }
 #[derive(Reflect, Serialize, Deserialize, Clone)]
 #[reflect(opaque)]

src/input/frame.rs

@@ -2,119 +2,13 @@ use serde::{Deserialize, Serialize};
 
 use crate::math::vec::FGVec2;
 
-/// A fixed-width set of distinct bindings assigned to one logical action.
-/// Keeping binding identity in the rollback frame allows combinations such as
-/// pressing a second shield binding while the first one is still held.
-#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize, Default)]
-pub struct ActionBindingMask(pub u16);
-
-impl ActionBindingMask {
-    pub const fn empty() -> Self {
-        Self(0)
-    }
-
-    pub const fn from_slot(slot: u8) -> Self {
-        Self(if slot < 16 { 1u16 << slot } else { 0 })
-    }
-
-    pub const fn contains(self, other: Self) -> bool {
-        self.0 & other.0 == other.0
-    }
-
-    pub const fn intersects(self, other: Self) -> bool {
-        self.0 & other.0 != 0
-    }
-
-    pub const fn count(self) -> u32 {
-        self.0.count_ones()
-    }
-
-    pub const fn pressed_since(self, previous: Self) -> Self {
-        Self(self.0 & !previous.0)
-    }
-
-    pub const fn released_since(self, previous: Self) -> Self {
-        Self(previous.0 & !self.0)
-    }
-}
-
-#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize, Default)]
-pub struct DigitalActionBindings {
-    pub jump: ActionBindingMask,
-    pub shield: ActionBindingMask,
-    pub attack: ActionBindingMask,
-}
-
-impl DigitalActionBindings {
-    pub fn set(&mut self, action: DigitalAction, slot: u8, pressed: bool) {
-        let mask = match action {
-            DigitalAction::Jump => &mut self.jump,
-            DigitalAction::Shield => &mut self.shield,
-            DigitalAction::Attack => &mut self.attack,
-        };
-        let bit = ActionBindingMask::from_slot(slot).0;
-        if pressed {
-            mask.0 |= bit;
-        } else {
-            mask.0 &= !bit;
-        }
-    }
-
-    pub const fn get(self, action: DigitalAction) -> ActionBindingMask {
-        match action {
-            DigitalAction::Jump => self.jump,
-            DigitalAction::Shield => self.shield,
-            DigitalAction::Attack => self.attack,
-        }
-    }
-}
-
-#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
-pub enum DigitalAction {
-    Jump,
-    Shield,
-    Attack,
-}
-
 /// One frame of a player's raw input. This is the type GGRS serializes and
 /// sends over the wire, so keep it small and keep it `PartialEq`.
 #[derive(Copy, Clone, Debug, PartialEq, Default, Serialize, Deserialize, Hash)]
 pub struct FighterInputFrame {
     pub movement: FGVec2,
     pub directional_attack: FGVec2,
-    pub bindings: DigitalActionBindings,
-}
-
-impl FighterInputFrame {
-    pub const fn bindings_for(self, action: DigitalAction) -> ActionBindingMask {
-        self.bindings.get(action)
-    }
-
-    pub const fn is_held(self, action: DigitalAction) -> bool {
-        self.bindings_for(action).0 != 0
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn binding_masks_preserve_distinct_same_action_bindings() {
-        let mut bindings = DigitalActionBindings::default();
-        bindings.set(DigitalAction::Shield, 0, true);
-        bindings.set(DigitalAction::Shield, 1, true);
-        assert_eq!(bindings.shield.0, 0b11);
-        assert_eq!(bindings.shield.count(), 2);
-        assert_eq!(bindings.shield.pressed_since(ActionBindingMask(1)).0, 0b10);
-    }
-
-    #[test]
-    fn clearing_one_binding_does_not_clear_the_other() {
-        let mut bindings = DigitalActionBindings::default();
-        bindings.set(DigitalAction::Shield, 0, true);
-        bindings.set(DigitalAction::Shield, 1, true);
-        bindings.set(DigitalAction::Shield, 0, false);
-        assert_eq!(bindings.shield.0, 0b10);
-    }
+    pub jump: bool,
+    pub shield: bool,
+    pub attack: bool,
 }

src/input/gamecube/bridge.rs

@@ -7,8 +7,7 @@ use bevy::input::gamepad::{
 };
 use bevy::prelude::*;
 
-use super::GcPorts;
-use super::poll::GcAdapterSnapshot;
+use super::poll::{GcAdapterSnapshot, GcPortState};
 
 /// GameCube adapters report 4 ports.
 pub const GC_PORT_COUNT: usize = 4;
@@ -24,6 +23,15 @@ const GC_ADAPTER_PID: u16 = 0x0337;
 #[derive(Component, Debug, Clone, Copy)]
 pub struct GcPort(pub u8);
 
+/// Tracks which entity (if any) represents each of the 4 adapter ports,
+/// and the last snapshot seen, so both systems below can diff instead of
+/// re-deriving state every frame.
+#[derive(Resource, Default)]
+pub struct GcPorts {
+    pub entities: [Option<Entity>; GC_PORT_COUNT],
+    last: [GcPortState; GC_PORT_COUNT],
+}
+
 fn passthrough_gamepad_settings() -> GamepadSettings {
     let mut settings = GamepadSettings::default();
     for axis in GamepadAxis::all() {

src/input/gamecube/mod.rs

@@ -1,23 +1,10 @@
-#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
 pub mod bridge;
-#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
 pub mod poll;
 
-#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
-pub use bridge::{GC_PORT_COUNT, GcPort};
-#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
+pub use bridge::{GC_PORT_COUNT, GcPort, GcPorts};
 pub use poll::{GcAdapterSnapshot, GcPortState};
 
-#[derive(Resource, Default)]
-pub struct GcPorts {
-    pub entities: [Option<Entity>; 4],
-    #[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
-    pub(super) last: [poll::GcPortState; 4],
-}
-
-#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
 use bevy::input::InputSystems;
-#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
 use bevy::input::gamepad::{gamepad_connection_system, gamepad_event_processing_system};
 use bevy::prelude::*;
 
@@ -28,24 +15,21 @@ impl Plugin for GamecubeAdapterPlugin {
     fn build(&self, app: &mut App) {
         app.init_resource::<GcPorts>();
 
-        #[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
-        {
-            let Ok(snapshot) = poll::spawn_poll_thread() else {
-                // No adapter connected; leave GcPorts empty and skip wiring the
-                // polling systems.
-                return;
-            };
+        let Ok(snapshot) = poll::spawn_poll_thread() else {
+            // No adapter connected; leave GcPorts empty and skip wiring the
+            // polling systems.
+            return;
+        };
 
-            app.insert_resource(snapshot).add_systems(
-                PreUpdate,
-                (
-                    bridge::gc_connection_system.before(gamepad_connection_system),
-                    bridge::gc_event_system
-                        .after(gamepad_connection_system)
-                        .before(gamepad_event_processing_system),
-                )
-                    .in_set(InputSystems),
-            );
-        }
+        app.insert_resource(snapshot).add_systems(
+            PreUpdate,
+            (
+                bridge::gc_connection_system.before(gamepad_connection_system),
+                bridge::gc_event_system
+                    .after(gamepad_connection_system)
+                    .before(gamepad_event_processing_system),
+            )
+                .in_set(InputSystems),
+        );
     }
 }

src/input/gamecube/poll.rs

@@ -1,8 +1,6 @@
 use std::panic::{self, AssertUnwindSafe};
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Mutex};
-use std::thread::JoinHandle;
-use std::time::{Duration, Instant};
 
 use bevy::prelude::*;
 use gc_adapter_neo::{Controller, GcAdapter};
@@ -47,8 +45,8 @@ impl GcPortState {
             dpad_right: b.dpad_right(),
             left_trigger_digital: b.left_trigger(),
             right_trigger_digital: b.right_trigger(),
-            left_stick: cal.left_stick_coords(&c),
-            right_stick: cal.right_stick_coords(&c),
+            left_stick: cal.left_stick(&c),
+            right_stick: cal.right_stick(&c),
             triggers: (c.triggers.left.raw(), c.triggers.right.raw()),
         }
     }
@@ -57,11 +55,10 @@ impl GcPortState {
 /// Shared, `Send + Sync` handle to the latest snapshot from the poll
 /// thread. Safe to store as an ordinary [`Resource`] (no `NonSend` needed)
 /// because the `GcAdapter` itself never leaves its thread.
-#[derive(Resource)]
+#[derive(Resource, Clone)]
 pub struct GcAdapterSnapshot {
     ports: Arc<Mutex<[GcPortState; 4]>>,
     shutdown: Arc<AtomicBool>,
-    poll_thread: Option<JoinHandle<()>>,
 }
 
 impl GcAdapterSnapshot {
@@ -72,38 +69,14 @@ impl GcAdapterSnapshot {
 
 impl Drop for GcAdapterSnapshot {
     fn drop(&mut self) {
-        self.shutdown.store(true, Ordering::Release);
-
-        if let Some(poll_thread) = self.poll_thread.take() {
-            if let Err(payload) = poll_thread.join() {
-                error!(
-                    "GameCube Controller Adapter poll thread panicked during shutdown: {payload:?}"
-                );
-            }
+        // Only actually signals shutdown once the last clone (this resource
+        // is never cloned in practice, but be defensive) is dropped.
+        if Arc::strong_count(&self.shutdown) <= 1 {
+            self.shutdown.store(true, Ordering::Relaxed);
         }
     }
 }
 
-const INITIAL_ERROR_BACKOFF: Duration = Duration::from_millis(1);
-const MAX_ERROR_BACKOFF: Duration = Duration::from_millis(100);
-
-fn next_error_backoff(backoff: Duration) -> Duration {
-    backoff.saturating_mul(2).min(MAX_ERROR_BACKOFF)
-}
-
-/// Wait for a retry while still allowing the owner to shut the poll thread down promptly.
-fn wait_for_retry(shutdown: &AtomicBool, delay: Duration) -> bool {
-    let deadline = Instant::now() + delay;
-    while !shutdown.load(Ordering::Acquire) {
-        let remaining = deadline.saturating_duration_since(Instant::now());
-        if remaining.is_zero() {
-            return true;
-        }
-        std::thread::sleep(remaining.min(Duration::from_millis(10)));
-    }
-    false
-}
-
 /// Connects to the first GameCube adapter found on the USB bus and starts
 /// polling it on a dedicated thread. Returns `None` (after logging a
 /// warning) if no adapter is plugged in
@@ -121,7 +94,7 @@ pub fn spawn_poll_thread() -> Result<GcAdapterSnapshot, gc_adapter_neo::UsbError
 
     let thread_ports = ports.clone();
     let thread_shutdown = shutdown.clone();
-    let poll_thread = std::thread::Builder::new()
+    std::thread::Builder::new()
         .name("gc-adapter-poll".into())
         .spawn(move || {
             // Flush whatever the adapter had buffered before we started
@@ -134,27 +107,17 @@ pub fn spawn_poll_thread() -> Result<GcAdapterSnapshot, gc_adapter_neo::UsbError
             let mut rate_window_start = std::time::Instant::now();
             #[cfg(debug_assertions)]
             let mut rate_window_count: u32 = 0;
-            let mut error_backoff = INITIAL_ERROR_BACKOFF;
 
-            while !thread_shutdown.load(Ordering::Acquire) {
+            while !thread_shutdown.load(Ordering::Relaxed) {
                 let result = panic::catch_unwind(AssertUnwindSafe(|| adapter.read_controllers()));
 
                 let controllers = match result {
-                    Ok(Ok(controllers)) => {
-                        error_backoff = INITIAL_ERROR_BACKOFF;
-                        controllers
-                    }
+                    Ok(Ok(controllers)) => controllers,
                     // Ignore this, for some reason we get a bunch of these when we start reading
                     Ok(Err(
                         gc_adapter_neo::AdapterError::Parse(_)
                         | gc_adapter_neo::AdapterError::ShortRead(_),
-                    )) => {
-                        if !wait_for_retry(&thread_shutdown, error_backoff) {
-                            break;
-                        }
-                        error_backoff = next_error_backoff(error_backoff);
-                        continue;
-                    }
+                    )) => continue,
                     Ok(Err(gc_adapter_neo::AdapterError::Usb(err))) => {
                         error!(
                             "GameCube Controller Adapter USB read failed ({err:?}); stopping \
@@ -197,32 +160,5 @@ pub fn spawn_poll_thread() -> Result<GcAdapterSnapshot, gc_adapter_neo::UsbError
         })
         .expect("failed to spawn gc-adapter poll thread");
 
-    Ok(GcAdapterSnapshot {
-        ports,
-        shutdown,
-        poll_thread: Some(poll_thread),
-    })
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn error_backoff_is_capped() {
-        let mut backoff = INITIAL_ERROR_BACKOFF;
-        for _ in 0..16 {
-            backoff = next_error_backoff(backoff);
-        }
-
-        assert_eq!(backoff, MAX_ERROR_BACKOFF);
-        assert_eq!(next_error_backoff(MAX_ERROR_BACKOFF), MAX_ERROR_BACKOFF);
-    }
-
-    #[test]
-    fn retry_wait_stops_when_shutdown_is_requested() {
-        let shutdown = AtomicBool::new(true);
-
-        assert!(!wait_for_retry(&shutdown, Duration::from_secs(1)));
-    }
+    Ok(GcAdapterSnapshot { ports, shutdown })
 }

src/input/gamepad.rs

@@ -9,19 +9,15 @@ use crate::math::vec::FGVec2;
 pub fn sample_gamepad(pad: &Gamepad, input_map: &BaseInputMap) -> FighterInputFrame {
     let mut input_frame = FighterInputFrame::default();
     let mut movement = Vec2::ZERO;
-    let mut directional_attack = Vec2::ZERO;
 
     for gamepad_element in &input_map.gamepad {
         match &gamepad_element.binding {
             GamepadBinding::Button(button) => {
                 let pressed = pad.pressed(*button);
-                if let Some(action) = gamepad_element.action.digital_action() {
-                    input_frame
-                        .bindings
-                        .set(action, gamepad_element.binding_slot, pressed);
-                }
                 match gamepad_element.action {
-                    InputMapAction::Jump | InputMapAction::Shield | InputMapAction::Attack => {}
+                    InputMapAction::Jump => input_frame.jump |= pressed,
+                    InputMapAction::Shield => input_frame.shield |= pressed,
+                    InputMapAction::Attack => input_frame.attack |= pressed,
                     // Digital buttons driving movement isn't used by the
                     // default bindings (the stick covers that), but stay
                     // consistent with the keyboard backend if one is added.
@@ -35,24 +31,12 @@ pub fn sample_gamepad(pad: &Gamepad, input_map: &BaseInputMap) -> FighterInputFr
                             movement.y += sign as f32
                         }
                     }
-                    InputMapAction::AttackXDir(sign) => {
-                        if pressed {
-                            directional_attack.x += sign as f32;
-                        }
-                    }
-                    InputMapAction::AttackYDir(sign) => {
-                        if pressed {
-                            directional_attack.y += sign as f32;
-                        }
-                    }
                 }
             }
             // gamepad does not have a separate axis for left and right, so sign here should be 1
             GamepadBinding::Axis(axis, sign) => {
                 let value = pad.get(*axis).unwrap_or(0.0) * (*sign as f32);
                 match gamepad_element.action {
-                    InputMapAction::AttackXDir(_) => directional_attack.x += value,
-                    InputMapAction::AttackYDir(_) => directional_attack.y += value,
                     InputMapAction::MovementXDir(_) => movement.x += value,
                     InputMapAction::MovementYDir(_) => movement.y += value,
                     _ => {}
@@ -62,10 +46,6 @@ pub fn sample_gamepad(pad: &Gamepad, input_map: &BaseInputMap) -> FighterInputFr
     }
 
     input_frame.movement = FGVec2::new(FGi32::from_num(movement.x), FGi32::from_num(movement.y));
-    input_frame.directional_attack = FGVec2::new(
-        FGi32::from_num(directional_attack.x),
-        FGi32::from_num(directional_attack.y),
-    );
 
     input_frame
 }

src/input/keyboard.rs

@@ -30,21 +30,9 @@ pub fn sample_keyboard(key: &ButtonInput<KeyCode>, input_map: &BaseInputMap) ->
             InputMapAction::MovementYDir(sign) => {
                 input_frame.movement.y += (sign) * action_strength
             }
-            InputMapAction::Jump | InputMapAction::Shield | InputMapAction::Attack => {
-                if let Some(action) = keyboard_elment.action.digital_action() {
-                    input_frame.bindings.set(
-                        action,
-                        keyboard_elment.binding_slot,
-                        action_strength != FGi32::ZERO,
-                    );
-                }
-            }
-            InputMapAction::AttackXDir(sign) => {
-                input_frame.directional_attack.x += (sign) * action_strength;
-            }
-            InputMapAction::AttackYDir(sign) => {
-                input_frame.directional_attack.y += (sign) * action_strength;
-            }
+            InputMapAction::Jump => input_frame.jump = action_strength != FGi32::ZERO,
+            InputMapAction::Shield => input_frame.shield = action_strength != FGi32::ZERO,
+            InputMapAction::Attack => input_frame.attack = action_strength != FGi32::ZERO,
         }
     }
 

src/input/map.rs

@@ -12,8 +12,6 @@ pub enum InputActionState {
 
 #[derive(Debug)]
 pub enum InputMapAction {
-    AttackXDir(i32),
-    AttackYDir(i32),
     MovementXDir(i32),
     MovementYDir(i32),
     Jump,
@@ -21,18 +19,6 @@ pub enum InputMapAction {
     Attack,
 }
 
-impl InputMapAction {
-    pub const fn digital_action(&self) -> Option<crate::input::DigitalAction> {
-        match self {
-            Self::Jump => Some(crate::input::DigitalAction::Jump),
-            Self::Shield => Some(crate::input::DigitalAction::Shield),
-            Self::Attack => Some(crate::input::DigitalAction::Attack),
-            Self::MovementXDir(_) | Self::MovementYDir(_) => None,
-            Self::AttackYDir(_) | Self::AttackXDir(_) => None,
-        }
-    }
-}
-
 #[derive(Debug)]
 pub enum MenuInputMapAction {
     MovementXDir(i32),
@@ -46,7 +32,6 @@ pub enum MenuInputMapAction {
 pub struct KeyboardInputMapElement {
     pub key: KeyCode,
     pub action: InputMapAction,
-    pub binding_slot: u8,
 }
 
 #[derive(Debug)]
@@ -59,7 +44,6 @@ pub enum GamepadBinding {
 pub struct GamepadInputMapElement {
     pub binding: GamepadBinding,
     pub action: InputMapAction,
-    pub binding_slot: u8,
 }
 
 #[derive(Debug)]

src/input/mod.rs

@@ -14,8 +14,8 @@ pub mod gamepad;
 pub mod keyboard;
 pub mod map;
 
-pub use buffer::{FighterCommands, FighterInput, FlickDirection};
-pub use frame::{ActionBindingMask, DigitalAction, DigitalActionBindings, FighterInputFrame};
+pub use buffer::{FighterCommands, FighterInput};
+pub use frame::FighterInputFrame;
 pub use map::{
     BaseInputMap, GamepadBinding, GamepadInputMapElement, InputActionState, InputMapAction,
     KeyboardInputMapElement, MenuGamepadInputMapElement, MenuInputMap, MenuInputMapAction,
@@ -28,7 +28,7 @@ pub enum LocalInputSource {
     Gamepad(Entity),
 }
 
-/// Persistent mapping from physical/menu controller slots to input sources.
+/// Maps an input source to a player index
 #[derive(Resource, Clone, Debug, Default, Deref, DerefMut)]
 pub struct LocalInputAssignments(pub Vec<(usize, LocalInputSource)>);
 
@@ -50,16 +50,6 @@ impl LocalInputAssignments {
     }
 }
 
-/// Match-local mapping from dense GGRS handles to physical input sources.
-#[derive(Resource, Clone, Debug, Default, Deref, DerefMut)]
-pub struct MatchInputAssignments(pub Vec<Option<LocalInputSource>>);
-
-impl MatchInputAssignments {
-    pub fn get_for_handle(&self, handle: usize) -> Option<LocalInputSource> {
-        self.0.get(handle).copied().flatten()
-    }
-}
-
 use crate::game_settings::GameSettings;
 use crate::math::int::FGi32;
 use crate::netcode::GGRSCfg;
@@ -78,43 +68,36 @@ impl Plugin for FighterInputPlugin {
                 KeyboardInputMapElement {
                     key: KeyCode::KeyD,
                     action: InputMapAction::MovementXDir(1),
-                    binding_slot: 0,
                 },
                 // left
                 KeyboardInputMapElement {
                     key: KeyCode::KeyA,
                     action: InputMapAction::MovementXDir(-1),
-                    binding_slot: 0,
                 },
                 // up
                 KeyboardInputMapElement {
                     key: KeyCode::KeyW,
                     action: InputMapAction::MovementYDir(1),
-                    binding_slot: 0,
                 },
                 // down
                 KeyboardInputMapElement {
                     key: KeyCode::KeyS,
                     action: InputMapAction::MovementYDir(-1),
-                    binding_slot: 0,
                 },
                 // jump
                 KeyboardInputMapElement {
                     key: KeyCode::Space,
                     action: InputMapAction::Jump,
-                    binding_slot: 0,
                 },
                 // shield/airdodge
                 KeyboardInputMapElement {
                     key: KeyCode::ShiftLeft,
                     action: InputMapAction::Shield,
-                    binding_slot: 0,
                 },
                 // attack
                 KeyboardInputMapElement {
                     key: KeyCode::KeyJ,
                     action: InputMapAction::Attack,
-                    binding_slot: 0,
                 },
                 // Menu
             ],
@@ -123,50 +106,29 @@ impl Plugin for FighterInputPlugin {
                 GamepadInputMapElement {
                     binding: GamepadBinding::Axis(GamepadAxis::LeftStickX, 1),
                     action: InputMapAction::MovementXDir(1),
-                    binding_slot: 0,
                 },
                 GamepadInputMapElement {
                     binding: GamepadBinding::Axis(GamepadAxis::LeftStickY, 1),
                     action: InputMapAction::MovementYDir(1),
-                    binding_slot: 0,
                 },
                 // jump
                 GamepadInputMapElement {
                     binding: GamepadBinding::Button(GamepadButton::North),
                     action: InputMapAction::Jump,
-                    binding_slot: 0,
                 },
+                // shield/airdodge -- both shoulder buttons, Melee-style
                 GamepadInputMapElement {
-                    binding: GamepadBinding::Button(GamepadButton::West),
-                    action: InputMapAction::Jump,
-                    binding_slot: 1,
-                },
-                GamepadInputMapElement {
-                    binding: GamepadBinding::Button(GamepadButton::LeftTrigger2),
+                    binding: GamepadBinding::Button(GamepadButton::LeftTrigger),
                     action: InputMapAction::Shield,
-                    binding_slot: 0,
                 },
                 GamepadInputMapElement {
-                    binding: GamepadBinding::Button(GamepadButton::RightTrigger2),
+                    binding: GamepadBinding::Button(GamepadButton::RightTrigger),
                     action: InputMapAction::Shield,
-                    binding_slot: 1,
                 },
                 // attack
                 GamepadInputMapElement {
                     binding: GamepadBinding::Button(GamepadButton::East),
                     action: InputMapAction::Attack,
-                    binding_slot: 0,
-                },
-                //C-stick
-                GamepadInputMapElement {
-                    binding: GamepadBinding::Axis(GamepadAxis::RightStickX, 1),
-                    action: InputMapAction::AttackXDir(1),
-                    binding_slot: 0,
-                },
-                GamepadInputMapElement {
-                    binding: GamepadBinding::Axis(GamepadAxis::RightStickY, 1),
-                    action: InputMapAction::AttackYDir(1),
-                    binding_slot: 0,
                 },
             ],
         })
@@ -275,13 +237,6 @@ fn preprocess_input_frame(frame: &mut FighterInputFrame, game_settings: &GameSet
     if frame.movement.y.abs() < game_settings.input_common.stick_deadzone {
         frame.movement.y = FGi32::ZERO;
     }
-
-    if frame.directional_attack.x.abs() < game_settings.input_common.stick_deadzone {
-        frame.directional_attack.x = FGi32::ZERO;
-    }
-    if frame.directional_attack.y.abs() < game_settings.input_common.stick_deadzone {
-        frame.directional_attack.y = FGi32::ZERO;
-    }
 }
 
 fn read_local_inputs(
@@ -290,17 +245,20 @@ fn read_local_inputs(
     input_map: Res<BaseInputMap>,
     gc_ports: Res<gamecube::GcPorts>,
     gamepads: Query<&Gamepad>,
-    assignments: Res<MatchInputAssignments>,
+    assignments: Res<LocalInputAssignments>,
     local_players: Res<LocalPlayers>,
     game_settings: Res<GameSettings>,
 ) {
     let mut local_inputs = HashMap::new();
 
     for handle in &local_players.0 {
-        let assigned = assignments.get_for_handle(*handle);
+        let assigned = assignments
+            .0
+            .iter()
+            .find(|(player_handle, _)| player_handle == handle);
         let gamepad = match assigned {
-            Some(LocalInputSource::Gamepad(entity)) => gamepads.get(entity).ok(),
-            Some(LocalInputSource::Keyboard) => None,
+            Some((_, LocalInputSource::Gamepad(entity))) => gamepads.get(*entity).ok(),
+            Some((_, LocalInputSource::Keyboard)) => None,
             None => gc_ports
                 .entities
                 .get(*handle)
@@ -310,8 +268,8 @@ fn read_local_inputs(
         };
 
         let mut input_frame = match assigned {
-            Some(LocalInputSource::Keyboard) => keyboard::sample_keyboard(&key, &input_map),
-            Some(LocalInputSource::Gamepad(_)) => gamepad
+            Some((_, LocalInputSource::Keyboard)) => keyboard::sample_keyboard(&key, &input_map),
+            Some((_, LocalInputSource::Gamepad(_))) => gamepad
                 .map(|pad| gamepad::sample_gamepad(pad, &input_map))
                 .unwrap_or_default(),
             None => FighterInputFrame::default(),

src/lib.rs

@@ -21,8 +21,6 @@
 //! save, click Rebuild in jackdaw (or run `jd build`) and it
 //! appears in `Add Component`. No registration code is needed.
 
-#![recursion_limit = "512"]
-
 use bevy::{
     asset::processor::{AssetProcessor, ProcessorState},
     prelude::*,
@@ -30,29 +28,22 @@ use bevy::{
     tasks::block_on,
 };
 use bevy_asset_loader::prelude::*;
+use bevy_wind_waker_shader::prelude::*;
 use clap::Parser;
 use ron_asset_manager::RonAssetPlugin;
 
 use crate::{
     camera::MatchCameraPlugin, fighter::manifest::FighterManifest, game_settings::GameSettings,
-    match_runtime::MatchRuntimePlugin, materials::ShinesparkMaterialPlugin,
-    menus::style::FGUiStyle, schedule::GameplaySchedulePlugin, stage::manifest::StageManifest,
-    ui::InGameUIPlugin,
+    schedule::GameplaySchedulePlugin, stage::manifest::StageManifest,
 };
 
 mod args;
-pub mod blend_asset;
 pub mod camera;
 pub mod debug_tools;
 pub mod fighter;
-pub mod filled_gizmos;
 pub mod game_settings;
 pub mod input;
-#[cfg(feature = "hitbox-viewer")]
-pub mod hitbox_viewer;
 pub mod match_loading;
-pub mod match_runtime;
-pub mod materials;
 mod math;
 pub mod menus;
 pub mod netcode;
@@ -62,8 +53,6 @@ pub mod schedule;
 pub mod scripting;
 pub mod stage;
 pub mod texture_reference;
-pub mod ui;
-pub mod egui_color_convert;
 
 #[derive(States, Debug, Clone, Copy, Eq, PartialEq, Hash, Default)]
 pub enum AppState {
@@ -82,8 +71,6 @@ pub enum AppState {
     LoadingMatch,
     PreparingMatch,
     InMatch,
-    MatchResults,
-    MatchDisconnected,
     MatchLoadFailed,
 }
 
@@ -93,21 +80,6 @@ pub enum AppState {
 #[derive(Default)]
 pub struct GamePlugin;
 
-/// Registers every custom asset loader used by the game and asset processor.
-pub struct GameAssetPlugin;
-
-impl Plugin for GameAssetPlugin {
-    fn build(&self, app: &mut App) {
-        app.add_plugins((
-            blend_asset::BlendAssetProcessingPlugin,
-            RonAssetPlugin::<FighterManifest>::create("fighter.ron"),
-            RonAssetPlugin::<StageManifest>::create("stage.ron"),
-            RonAssetPlugin::<GameSettings>::create("ron"),
-            RonAssetPlugin::<FGUiStyle>::create("stylesheet.ron"),
-        ));
-    }
-}
-
 impl Plugin for GamePlugin {
     fn build(&self, app: &mut App) {
         // Each module owns its own systems, rollback registrations and
@@ -115,25 +87,22 @@ impl Plugin for GamePlugin {
         // game-level content and configuration.
         app.init_state::<AppState>()
             .add_plugins((
-                (
-                    SettingsPlugin::new("moe.eirteam.shinespark.debug_settings"),
-                    // Brings up GGRS (and with it `GgrsSchedule`), so it goes first.
-                    netcode::FighterNetcodePlugin::default(),
-                    GameplaySchedulePlugin,
-                    MatchRuntimePlugin,
-                    input::FighterInputPlugin,
-                    replay::ReplayPlugin,
-                    debug_tools::DebugToolsPlugin,
-                    filled_gizmos::FilledGizmosPlugin,
-                    fighter::FighterPlugin,
-                    fighter::baked_animation::BakedAnimationPlugin,
-                    scripting::importer::FighterScriptImportPlugin,
-                    stage::StagePlugin,
-                    MatchCameraPlugin,
-                    GameAssetPlugin,
-                    InGameUIPlugin,
-                ),
-                ShinesparkMaterialPlugin,
+                SettingsPlugin::new("moe.eirteam.shinespark.debug_settings"),
+                WindWakerShaderPlugin::default(),
+                // Brings up GGRS (and with it `GgrsSchedule`), so it goes first.
+                netcode::FighterNetcodePlugin::default(),
+                GameplaySchedulePlugin,
+                input::FighterInputPlugin,
+                replay::ReplayPlugin,
+                debug_tools::DebugToolsPlugin,
+                fighter::FighterPlugin,
+                fighter::baked_animation::BakedAnimationPlugin,
+                scripting::importer::FighterScriptImportPlugin,
+                stage::StagePlugin,
+                MatchCameraPlugin,
+                RonAssetPlugin::<FighterManifest>::create("fighter.ron"),
+                RonAssetPlugin::<StageManifest>::create("stage.ron"),
+                RonAssetPlugin::<GameSettings>::create("ron"),
             ))
             .add_plugins(menus::MenuPlugin)
             .add_loading_state(
@@ -186,27 +155,11 @@ impl Plugin for GamePlugin {
     }
 }
 
-/// Registers the custom asset loaders and processors used by CI and release
-/// builds. The processing binary adds this plugin without starting the game.
-pub struct AssetProcessingPlugin;
-
-impl Plugin for AssetProcessingPlugin {
-    fn build(&self, app: &mut App) {
-        app.add_plugins((
-            GameAssetPlugin,
-            scripting::importer::FighterScriptImportPlugin,
-            fighter::baked_animation::BakedAnimationAssetProcessingPlugin,
-        ));
-    }
-}
-
 fn wait_for_asset_processor(
     processor: Option<Res<AssetProcessor>>,
     mut next_state: ResMut<NextState<AppState>>,
 ) {
-    if !cfg!(feature = "development")
-        || processor
-            .is_none_or(|processor| block_on(processor.get_state()) == ProcessorState::Finished)
+    if processor.is_none_or(|processor| block_on(processor.get_state()) == ProcessorState::Finished)
     {
         next_state.set(AppState::LoadCommonAssets);
     }

src/main.rs

@@ -1,49 +1,35 @@
 use bevy::asset::AssetMode::Processed;
-#[cfg(feature = "debug_features")]
 use bevy::camera_controller::free_camera::FreeCameraPlugin;
-use bevy::gltf::GltfPlugin;
 use bevy::image::{ImageAddressMode, ImagePlugin, ImageSamplerDescriptor};
 use bevy::prelude::*;
-#[cfg(feature = "debug_features")]
 use bevy_egui::EguiPlugin;
-#[cfg(feature = "debug_features")]
 use bevy_inspector_egui::quick::WorldInspectorPlugin;
 
 fn main() -> AppExit {
     // A `Repeat` sampler so the tileable materials authored in the
     // editor render the same way at runtime; Bevy's default
     // `ClampToEdge` smears texture edges on brush geometry.
-    let default_sampler = ImageSamplerDescriptor::linear()
-        .set_address_mode(ImageAddressMode::Repeat)
-        .set_anisotropic_filter(16)
-        .clone();
-
     let default_plugins = DefaultPlugins
         .set(ImagePlugin {
-            default_sampler: default_sampler.clone(),
-        })
-        .set(GltfPlugin {
-            default_sampler,
-            ..default()
+            default_sampler: ImageSamplerDescriptor {
+                address_mode_u: ImageAddressMode::Repeat,
+                address_mode_v: ImageAddressMode::Repeat,
+                address_mode_w: ImageAddressMode::Repeat,
+                ..ImageSamplerDescriptor::linear()
+            },
         })
         .set(AssetPlugin {
             mode: Processed,
-            use_asset_processor_override: Some(cfg!(feature = "development")),
             ..default()
         });
 
-    let mut app = App::new();
-    app.add_plugins(default_plugins)
+    App::new()
+        .add_plugins(default_plugins)
         .add_plugins(avian3d::prelude::PhysicsPlugins::default())
         .add_plugins(shinespark::GamePlugin)
-        .insert_resource(Time::<Fixed>::from_hz(60.0));
-
-    #[cfg(feature = "debug_features")]
-    app.add_plugins((
-        FreeCameraPlugin,
-        EguiPlugin::default(),
-        WorldInspectorPlugin::default(),
-    ));
-
-    app.run()
+        .add_plugins(FreeCameraPlugin)
+        .add_plugins(EguiPlugin::default())
+        .add_plugins(WorldInspectorPlugin::default()) // adds default options and `InspectorEguiImpl`s
+        .insert_resource(Time::<Fixed>::from_hz(60.0))
+        .run()
 }

src/match_loading.rs

@@ -8,7 +8,9 @@ use bevy_ggrs::prelude::Session;
 use serde::{Deserialize, Serialize};
 
 use crate::{
-    AppState, args::Args, fighter::{
+    AppState,
+    args::Args,
+    fighter::{
         FighterId, FighterRoster,
         animation::AnimKind,
         attack::{AttackKind, FighterAttackScriptAssets},
@@ -16,10 +18,12 @@ use crate::{
         manifest::{FighterManifest, FighterManifestRegistry},
         spawn_fighter,
         visual::FighterAnimations,
-    }, input::{LocalInputAssignments, LocalInputSource, MatchInputAssignments}, match_runtime::MatchState, netcode::{
-        GGRSCfg,
-        session::{ConnectionStatus, SessionConfig, create_session},
-    }, scripting::FighterAttackScript, stage::{
+    },
+    input::{LocalInputAssignments, LocalInputSource},
+    math::{int::FGi32, vec::FGVec2},
+    netcode::{GGRSCfg, session::create_session},
+    scripting::FighterAttackScript,
+    stage::{
         self,
         manifest::{StageId, StageManifest, StageManifestRegistry},
     },
@@ -27,72 +31,14 @@ use crate::{
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 pub struct MatchPlayer {
-    /// Dense index used by GGRS and rollback-simulated player state.
     pub handle: usize,
-    /// Physical controller port selected in the menu.
-    pub controller_port: usize,
     pub fighter: FighterId,
 }
 
-#[derive(Resource, Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub struct MatchConfig {
+#[derive(Resource, Debug, Clone, PartialEq, Eq)]
+pub struct PendingMatch {
     pub stage: StageId,
     pub players: Vec<MatchPlayer>,
-    pub rules: MatchRules,
-}
-
-impl MatchConfig {
-    /// Maps a GGRS handle to the controller port used by gameplay.
-    ///
-    /// Multiplayer uses the stable, dense GGRS handle as the port. A
-    /// single-player match preserves the physical controller port selected in
-    /// the menu (for example, port 3 remains port 3).
-    pub fn controller_port_for_handle(&self, handle: usize) -> Option<usize> {
-        let player = self.players.iter().find(|player| player.handle == handle)?;
-        Some(if self.players.len() > 1 {
-            handle
-        } else {
-            player.controller_port
-        })
-    }
-}
-
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub enum MatchRules {
-    Stock {
-        starting_stocks: u8,
-        time_limit_frames: Option<u32>,
-    },
-    Timed {
-        time_limit_frames: u32,
-    },
-}
-
-impl Default for MatchRules {
-    fn default() -> Self {
-        Self::Stock {
-            starting_stocks: 3,
-            time_limit_frames: None,
-        }
-    }
-}
-
-impl MatchRules {
-    fn validate(&self) -> Result<(), &'static str> {
-        match self {
-            Self::Stock {
-                starting_stocks: 0, ..
-            } => Err("stock matches must start with at least one stock"),
-            Self::Stock {
-                time_limit_frames: Some(0),
-                ..
-            } => Err("stock match time limits must be greater than zero frames"),
-            Self::Timed {
-                time_limit_frames: 0,
-            } => Err("timed match limits must be greater than zero frames"),
-            _ => Ok(()),
-        }
-    }
 }
 
 pub struct SelectedFighterAssets {
@@ -110,7 +56,7 @@ pub struct MatchAssets {
 
 impl MatchAssets {
     fn requested(world: &World) -> Self {
-        let config = world.resource::<MatchConfig>();
+        let request = world.resource::<PendingMatch>();
         let asset_server = world.resource::<AssetServer>();
         let registry = world.resource::<FighterManifestRegistry>();
         let stage_registry = world.resource::<StageManifestRegistry>();
@@ -118,7 +64,7 @@ impl MatchAssets {
         let stage_manifests = world.resource::<Assets<StageManifest>>();
 
         let stage_handle = stage_registry
-            .get(config.stage)
+            .get(request.stage)
             .expect("Startup validation guarantees every stage has a manifest");
         let stage_manifest = stage_manifests
             .get(&stage_handle)
@@ -126,7 +72,7 @@ impl MatchAssets {
 
         Self {
             stage: asset_server.load(stage_manifest.model_path.clone()),
-            fighters: config
+            fighters: request
                 .players
                 .iter()
                 .map(|player| {
@@ -192,10 +138,9 @@ pub struct MatchRoot;
 pub fn initiate_match(
     commands: &mut Commands,
     next_state: &mut NextState<AppState>,
-    config: MatchConfig,
+    request: PendingMatch,
 ) {
-    commands.remove_resource::<crate::netcode::session::MatchDisconnected>();
-    commands.insert_resource(config);
+    commands.insert_resource(request);
     next_state.set(AppState::LoadingMatch);
 }
 
@@ -217,9 +162,12 @@ pub fn initiate_default_match(
     if let Some(path) = &args.play_replay {
         match crate::replay::load(path) {
             Ok(replay) => {
-                let config = replay.match_config.clone();
+                let request = PendingMatch {
+                    stage: replay.match_config.stage,
+                    players: replay.match_config.players.clone(),
+                };
                 commands.insert_resource(crate::replay::LoadedReplay(replay));
-                initiate_match(&mut commands, &mut next_state, config);
+                initiate_match(&mut commands, &mut next_state, request);
             }
             Err(error) => {
                 error!("Replay load failed: {error}");
@@ -228,54 +176,32 @@ pub fn initiate_default_match(
         }
         return;
     }
-    let session_config = match SessionConfig::from_args(&args, args.players) {
-        Ok(config) => config,
-        Err(error) => {
-            error!("Invalid network configuration: {error}");
-            next_state.set(AppState::MatchLoadFailed);
-            return;
-        }
-    };
     let players = (0..args.players)
         .map(|handle| MatchPlayer {
             handle,
-            controller_port: handle,
             fighter: FighterId::TestFighter,
         })
         .collect();
 
-    assigments.clear();
-    let local_handles = session_config
-        .players
-        .iter()
-        .enumerate()
-        .filter_map(|(handle, player)| {
-            matches!(player, crate::netcode::session::PlayerConnection::Local).then_some(handle)
-        });
-    let mut local_handles = local_handles;
-    if let Some(handle) = local_handles.next() {
-        assigments.push((handle, LocalInputSource::Keyboard));
-    }
+    assigments.push((0, LocalInputSource::Keyboard));
 
-    for (entity, handle) in gamepads.iter().zip(local_handles) {
-        assigments.push((handle, LocalInputSource::Gamepad(entity)));
+    for (idx, entity) in gamepads.iter().take(args.players - 1).enumerate() {
+        assigments.push((idx + 1, LocalInputSource::Gamepad(entity)));
     }
 
     initiate_match(
         &mut commands,
         &mut next_state,
-        MatchConfig {
+        PendingMatch {
             stage: StageId::TestStage,
             players,
-            rules: MatchRules::default(),
         },
     );
 }
 
 pub fn prepare_match(
     mut commands: Commands,
-    config: Res<MatchConfig>,
-    input_assignments: Res<LocalInputAssignments>,
+    request: Res<PendingMatch>,
     assets: Res<MatchAssets>,
     gltfs: Res<Assets<Gltf>>,
     baked_animations: Res<Assets<BakedFighterAnimations>>,
@@ -287,34 +213,15 @@ pub fn prepare_match(
     args: Res<Args>,
     mut next_state: ResMut<NextState<AppState>>,
 ) {
-    if !valid_player_handles(&config.players) {
+    if !valid_player_handles(&request.players) {
         fail_match(
             &mut next_state,
-            "player handles must be dense, unique, and non-empty",
+            "player handles must be unique and cover 0..player_count",
         );
         return;
     }
 
-    if let Err(error) = config.rules.validate() {
-        fail_match(&mut next_state, error);
-        return;
-    }
-
-    let stage_handle = stage_registry
-        .get(config.stage)
-        .expect("Initialization check should ensure all stages exist");
-    let stage_manifest = stage_manifests
-        .get(&stage_handle)
-        .expect("Initialization check should ensure stage manifests are kept alive");
-    let spawn_positions = match stage_manifest.neutral_spawn_positions(config.players.len()) {
-        Ok(positions) => positions,
-        Err(error) => {
-            fail_match(&mut next_state, &error);
-            return;
-        }
-    };
-
-    if assets.fighters.len() != config.players.len() {
+    if assets.fighters.len() != request.players.len() {
         fail_match(
             &mut next_state,
             "loaded character assets do not match the requested player slots",
@@ -363,25 +270,6 @@ pub fn prepare_match(
             );
             return;
         }
-        if !baked.contains_bone(&manifest.root_motion_bone) {
-            fail_match(
-                &mut next_state,
-                &format!(
-                    "{:?} references missing root motion bone {:?}",
-                    character.fighter, manifest.root_motion_bone
-                ),
-            );
-            return;
-        }
-
-        let ecb_bone_indices = baked.bone_names.iter().enumerate().filter_map(|(idx, name)| {
-            if manifest.ecb_bones.contains(name) {
-                Some(idx)
-            } else {
-                None
-            }
-        }).collect::<Vec<_>>();
-
         if let Err(error) = manifest.attributes.validate() {
             fail_match(
                 &mut next_state,
@@ -482,22 +370,10 @@ pub fn prepare_match(
             attack_scripts,
             manifest_handle,
             manifest.model_scale,
-            ecb_bone_indices,
         ));
     }
 
-    let session_player_count = player_count_for_handles(&config.players);
-    let session_config = match SessionConfig::from_args(&args, session_player_count) {
-        Ok(config) => config,
-        Err(error) => {
-            fail_match(
-                &mut next_state,
-                &format!("invalid network configuration: {error}"),
-            );
-            return;
-        }
-    };
-    let session = match create_session(&args, session_player_count) {
+    let session = match create_session(&args, request.players.len()) {
         Ok(session) => session,
         Err(error) => {
             fail_match(
@@ -508,13 +384,14 @@ pub fn prepare_match(
         }
     };
 
-    commands.insert_resource(create_match_input_assignments(
-        &input_assignments,
-        &config.players,
-    ));
-
     let root = commands.spawn((Name::new("Match"), MatchRoot)).id();
 
+    let stage_handle = stage_registry
+        .get(request.stage)
+        .expect("Initialization check should ensure all stages exist");
+    let stage_manifest = stage_manifests
+        .get(&stage_handle)
+        .expect("Initialization check should ensure stage manifests are kept alive");
     stage::spawn_stage(
         &mut commands,
         root,
@@ -523,32 +400,24 @@ pub fn prepare_match(
         stage_manifest.camera.clone(),
     );
 
-    let mut fighter_roster = Vec::with_capacity(config.players.len());
-
-    for (spawn_index, (player, (scene, animations, attack_scripts, manifest_handle, model_scale, ecb_bone_indices))) in
-        config.players.iter().zip(prepared).enumerate()
+    let mut fighter_roster = Vec::with_capacity(request.players.len());
+    for (index, (player, (scene, animations, attack_scripts, manifest_handle, model_scale))) in
+        request.players.iter().zip(prepared).enumerate()
     {
-        let spawn_point = spawn_positions[spawn_index];
+        let spawn_x = (index as i32 * 2 + 1 - request.players.len() as i32) * 5;
         fighter_roster.push(spawn_fighter(
             &mut commands,
             player.handle,
-            config
-                .controller_port_for_handle(player.handle)
-                .expect("validated match config contains every player handle"),
-            spawn_point,
+            FGVec2::new(FGi32::from_num(spawn_x), FGi32::lit("12.5")),
             manifest_handle.clone(),
             model_scale,
             animations,
             attack_scripts,
             WorldAssetRoot(scene),
-            ecb_bone_indices
         ));
     }
 
     commands.insert_resource(FighterRoster(fighter_roster));
-    commands.insert_resource(MatchState::from_config(&config));
-    commands.insert_resource(session_config);
-    commands.insert_resource(ConnectionStatus::default());
     commands.insert_resource::<Session<GGRSCfg>>(session);
     next_state.set(AppState::InMatch);
 }
@@ -559,30 +428,12 @@ fn fail_match(next_state: &mut NextState<AppState>, message: &str) {
 }
 
 fn valid_player_handles(players: &[MatchPlayer]) -> bool {
-    if players.is_empty() {
-        return false;
-    }
-
-    let mut handles = players.iter().map(|player| player.handle).collect::<Vec<_>>();
+    let mut handles = players
+        .iter()
+        .map(|player| player.handle)
+        .collect::<Vec<_>>();
     handles.sort_unstable();
-    handles.into_iter().eq(0..players.len())
-}
-
-fn player_count_for_handles(players: &[MatchPlayer]) -> usize {
-    players.len()
-}
-
-fn create_match_input_assignments(
-    assignments: &LocalInputAssignments,
-    players: &[MatchPlayer],
-) -> MatchInputAssignments {
-    let mut match_assignments = vec![None; players.len()];
-    for player in players {
-        match_assignments[player.handle] = assignments
-            .get_from_slot(player.controller_port)
-            .copied();
-    }
-    MatchInputAssignments(match_assignments)
+    handles == (0..players.len()).collect::<Vec<_>>()
 }
 
 pub fn cleanup_match(
@@ -597,13 +448,9 @@ pub fn cleanup_match(
         commands.entity(fighter).despawn();
     }
     commands.remove_resource::<Session<GGRSCfg>>();
-    commands.remove_resource::<SessionConfig>();
-    commands.remove_resource::<ConnectionStatus>();
     commands.remove_resource::<stage::line::StageCollision>();
     commands.remove_resource::<MatchAssets>();
-    commands.remove_resource::<MatchConfig>();
-    commands.remove_resource::<MatchState>();
-    commands.remove_resource::<MatchInputAssignments>();
+    commands.remove_resource::<PendingMatch>();
     commands.remove_resource::<FighterRoster>();
 }
 
@@ -612,28 +459,25 @@ mod tests {
     use super::*;
 
     #[test]
-    fn match_config_keeps_duplicate_fighter_slots() {
-        let config = MatchConfig {
+    fn match_request_keeps_duplicate_fighter_slots() {
+        let request = PendingMatch {
             stage: StageId::TestStage,
             players: vec![
                 MatchPlayer {
                     handle: 0,
-                    controller_port: 0,
                     fighter: FighterId::TestFighter,
                 },
                 MatchPlayer {
                     handle: 1,
-                    controller_port: 1,
                     fighter: FighterId::TestFighter,
                 },
             ],
-            rules: MatchRules::default(),
         };
 
-        assert_eq!(config.players.len(), 2);
-        assert_eq!(config.players[0].handle, 0);
-        assert_eq!(config.players[1].handle, 1);
-        assert!(valid_player_handles(&config.players));
+        assert_eq!(request.players.len(), 2);
+        assert_eq!(request.players[0].handle, 0);
+        assert_eq!(request.players[1].handle, 1);
+        assert!(valid_player_handles(&request.players));
     }
 
     #[test]
@@ -641,12 +485,10 @@ mod tests {
         let players = [
             MatchPlayer {
                 handle: 0,
-                controller_port: 0,
                 fighter: FighterId::TestFighter,
             },
             MatchPlayer {
                 handle: 0,
-                controller_port: 1,
                 fighter: FighterId::TestFighter,
             },
         ];
@@ -654,135 +496,6 @@ mod tests {
         assert!(!valid_player_handles(&players));
     }
 
-    #[test]
-    fn player_handles_must_not_have_gaps() {
-        let players = [
-            MatchPlayer {
-                handle: 0,
-                controller_port: 0,
-                fighter: FighterId::TestFighter,
-            },
-            MatchPlayer {
-                handle: 2,
-                controller_port: 3,
-                fighter: FighterId::TestFighter,
-            },
-        ];
-
-        assert!(!valid_player_handles(&players));
-        assert_eq!(player_count_for_handles(&players), 2);
-    }
-
-    #[test]
-    fn controller_ports_use_ggrs_handles_only_in_multiplayer() {
-        let single_player = MatchConfig {
-            stage: StageId::TestStage,
-            players: vec![MatchPlayer {
-                handle: 0,
-                controller_port: 3,
-                fighter: FighterId::TestFighter,
-            }],
-            rules: MatchRules::default(),
-        };
-        assert_eq!(single_player.controller_port_for_handle(0), Some(3));
-
-        let multiplayer = MatchConfig {
-            stage: StageId::TestStage,
-            players: vec![
-                MatchPlayer {
-                    handle: 0,
-                    controller_port: 0,
-                    fighter: FighterId::TestFighter,
-                },
-                MatchPlayer {
-                    handle: 1,
-                    controller_port: 3,
-                    fighter: FighterId::TestFighter,
-                },
-            ],
-            rules: MatchRules::default(),
-        };
-        assert_eq!(multiplayer.controller_port_for_handle(0), Some(0));
-        assert_eq!(multiplayer.controller_port_for_handle(1), Some(1));
-    }
-
-    #[test]
-    fn match_input_assignments_map_ports_to_ggrs_handles_without_mutating_ports() {
-        let players = [
-            MatchPlayer {
-                handle: 0,
-                controller_port: 0,
-                fighter: FighterId::TestFighter,
-            },
-            MatchPlayer {
-                handle: 1,
-                controller_port: 3,
-                fighter: FighterId::TestFighter,
-            },
-        ];
-        let assignments = LocalInputAssignments(vec![
-            (0, LocalInputSource::Keyboard),
-            (3, LocalInputSource::Gamepad(Entity::PLACEHOLDER)),
-        ]);
-
-        let match_assignments = create_match_input_assignments(&assignments, &players);
-
-        assert_eq!(match_assignments.get_for_handle(0), Some(LocalInputSource::Keyboard));
-        assert_eq!(
-            match_assignments.get_for_handle(1),
-            Some(LocalInputSource::Gamepad(Entity::PLACEHOLDER))
-        );
-        assert_eq!(assignments[0].0, 0);
-        assert_eq!(assignments[1].0, 3);
-    }
-
-    #[test]
-    fn match_rules_reject_zero_limits() {
-        assert!(
-            MatchRules::Stock {
-                starting_stocks: 0,
-                time_limit_frames: None,
-            }
-            .validate()
-            .is_err()
-        );
-        assert!(
-            MatchRules::Stock {
-                starting_stocks: 3,
-                time_limit_frames: Some(0),
-            }
-            .validate()
-            .is_err()
-        );
-        assert!(
-            MatchRules::Timed {
-                time_limit_frames: 0,
-            }
-            .validate()
-            .is_err()
-        );
-    }
-
-    #[test]
-    fn match_rules_accept_valid_modes() {
-        assert!(MatchRules::default().validate().is_ok());
-        assert!(
-            MatchRules::Stock {
-                starting_stocks: 3,
-                time_limit_frames: Some(60),
-            }
-            .validate()
-            .is_ok()
-        );
-        assert!(
-            MatchRules::Timed {
-                time_limit_frames: 60,
-            }
-            .validate()
-            .is_ok()
-        );
-    }
-
     #[test]
     fn match_loading_waits_for_attack_scripts() {
         let mut attack_scripts = HashMap::new();

src/match_runtime.rs

@@ -1,318 +0,0 @@
-//! Rollback-simulated state for an active match.
-
-use bevy::input::InputSystems;
-use bevy::prelude::*;
-use bevy_ggrs::{ConfirmedFrameCount, RollbackFrameCount, RunGgrsSystems, prelude::*};
-
-use crate::{
-    AppState,
-    match_loading::{MatchConfig, MatchRules},
-    netcode::session::SessionConfig,
-};
-
-#[derive(Resource, Clone, Debug, Hash, PartialEq, Eq)]
-pub struct MatchState {
-    pub elapsed_frames: u32,
-    /// Indexed by the player's session handle.
-    pub players: Vec<PlayerMatchState>,
-    /// The rollback frame on which the match first finished.
-    pub finished_at_frame: Option<i32>,
-}
-
-#[derive(Clone, Debug, Hash, PartialEq, Eq)]
-pub struct PlayerMatchState {
-    pub stocks_remaining: Option<u8>,
-    pub score: i32,
-    pub deaths: u32,
-}
-
-#[derive(Resource, Debug, Default, Clone, Copy, PartialEq, Eq)]
-pub struct PauseState {
-    pub paused: bool,
-}
-
-impl MatchState {
-    pub fn from_config(config: &MatchConfig) -> Self {
-        let stocks_remaining = match &config.rules {
-            MatchRules::Stock {
-                starting_stocks, ..
-            } => Some(*starting_stocks),
-            MatchRules::Timed { .. } => None,
-        };
-
-        Self {
-            elapsed_frames: 0,
-            players: (0..config.players.len())
-                .map(|_| PlayerMatchState {
-                    stocks_remaining,
-                    score: 0,
-                    deaths: 0,
-                })
-                .collect(),
-            finished_at_frame: None,
-        }
-    }
-
-    pub fn is_match_finished(&self, config: &MatchConfig) -> bool {
-        let time_limit = match config.rules {
-            MatchRules::Stock {
-                starting_stocks: _,
-                time_limit_frames,
-            } => time_limit_frames,
-            MatchRules::Timed { time_limit_frames } => Some(time_limit_frames),
-        };
-
-        if let Some(time_limit) = time_limit {
-            if self.elapsed_frames >= time_limit {
-                return true;
-            }
-        }
-
-        if config.players.len() > 1
-            && let MatchRules::Stock {
-                starting_stocks: _,
-                time_limit_frames: _,
-            } = config.rules
-        {
-            let alive_fighter_count = self
-                .players
-                .iter()
-                .filter(|fighter| {
-                    fighter
-                        .stocks_remaining
-                        .map(|stocks| stocks)
-                        .unwrap_or_default()
-                        > 0
-                })
-                .count();
-            if alive_fighter_count <= 1 {
-                return true;
-            }
-        }
-
-        false
-    }
-
-    fn advance_frame(&mut self, config: &MatchConfig, frame: i32) {
-        if self.finished_at_frame.is_some() {
-            return;
-        }
-
-        self.elapsed_frames = self.elapsed_frames.saturating_add(1);
-
-        if self.is_match_finished(config) {
-            self.finished_at_frame = Some(frame);
-        }
-    }
-
-    fn finish_is_confirmed(&self, confirmed_frame: i32) -> bool {
-        self.finished_at_frame
-            .is_some_and(|finished_at| confirmed_frame >= finished_at)
-    }
-}
-
-pub struct MatchRuntimePlugin;
-
-impl Plugin for MatchRuntimePlugin {
-    fn build(&self, app: &mut App) {
-        app.rollback_resource_with_clone::<MatchState>()
-            .checksum_resource_with_hash::<MatchState>()
-            .init_resource::<PauseState>()
-            .configure_sets(PreUpdate, RunGgrsSystems.run_if(ggrs_should_run))
-            .add_systems(OnEnter(AppState::InMatch), reset_pause)
-            .add_systems(OnExit(AppState::InMatch), reset_pause)
-            .add_systems(
-                GgrsSchedule,
-                update_match_rules.in_set(crate::schedule::GameplaySet::MatchRules),
-            )
-            .add_systems(
-                PreUpdate,
-                toggle_pause
-                    .after(InputSystems)
-                    .before(RunGgrsSystems)
-                    .run_if(in_state(AppState::InMatch)),
-            )
-            .add_systems(
-                Update,
-                transition_after_confirmed_finish.run_if(in_state(AppState::InMatch)),
-            );
-    }
-}
-
-pub fn ggrs_should_run(pause: Option<Res<PauseState>>) -> bool {
-    !pause.is_some_and(|pause| pause.paused)
-}
-
-pub(crate) fn match_is_ongoing(match_state: Option<Res<MatchState>>) -> bool {
-    match_state.is_none_or(|match_state| match_state.finished_at_frame.is_none())
-}
-
-fn toggle_pause(
-    key: Res<ButtonInput<KeyCode>>,
-    gamepads: Query<&Gamepad>,
-    session: Res<SessionConfig>,
-    mut pause: ResMut<PauseState>,
-    mut virtual_time: ResMut<Time<Virtual>>,
-) {
-    if session.is_multiplayer() {
-        return;
-    }
-
-    let pressed = key.just_pressed(KeyCode::Escape)
-        || gamepads
-            .iter()
-            .any(|gamepad| gamepad.just_pressed(GamepadButton::Start));
-    if !pressed {
-        return;
-    }
-
-    pause.paused = !pause.paused;
-    virtual_time.toggle();
-}
-
-fn reset_pause(mut pause: ResMut<PauseState>, mut virtual_time: ResMut<Time<Virtual>>) {
-    pause.paused = false;
-    virtual_time.unpause();
-}
-
-fn update_match_rules(
-    mut match_state: ResMut<MatchState>,
-    match_config: Res<MatchConfig>,
-    frame: Res<RollbackFrameCount>,
-) {
-    match_state.advance_frame(&match_config, frame.0);
-}
-
-fn transition_after_confirmed_finish(
-    match_state: Res<MatchState>,
-    confirmed_frame: Res<ConfirmedFrameCount>,
-    mut next_state: ResMut<NextState<AppState>>,
-) {
-    if match_state.finish_is_confirmed(confirmed_frame.0) {
-        next_state.set(AppState::MatchResults);
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::{fighter::FighterId, match_loading::MatchPlayer, stage::manifest::StageId};
-
-    fn config(rules: MatchRules) -> MatchConfig {
-        MatchConfig {
-            stage: StageId::TestStage,
-            players: vec![
-                MatchPlayer {
-                    handle: 1,
-                    controller_port: 3,
-                    fighter: FighterId::TestFighter,
-                },
-                MatchPlayer {
-                    handle: 0,
-                    controller_port: 0,
-                    fighter: FighterId::TestFighter,
-                },
-            ],
-            rules,
-        }
-    }
-
-    #[test]
-    fn stock_state_starts_with_configured_stocks() {
-        let state = MatchState::from_config(&config(MatchRules::Stock {
-            starting_stocks: 4,
-            time_limit_frames: Some(60),
-        }));
-
-        assert_eq!(state.elapsed_frames, 0);
-        assert_eq!(state.finished_at_frame, None);
-        assert_eq!(state.players.len(), 2);
-        assert!(state.players.iter().all(|player| {
-            player.stocks_remaining == Some(4) && player.score == 0 && player.deaths == 0
-        }));
-    }
-
-    #[test]
-    fn timed_state_has_no_stock_counter() {
-        let state = MatchState::from_config(&config(MatchRules::Timed {
-            time_limit_frames: 60,
-        }));
-
-        assert!(
-            state
-                .players
-                .iter()
-                .all(|player| player.stocks_remaining.is_none())
-        );
-    }
-
-    #[test]
-    fn timed_match_finishes_on_its_rollback_frame() {
-        let config = config(MatchRules::Timed {
-            time_limit_frames: 2,
-        });
-        let mut state = MatchState::from_config(&config);
-
-        state.advance_frame(&config, 10);
-        assert_eq!(state.elapsed_frames, 1);
-        assert_eq!(state.finished_at_frame, None);
-
-        state.advance_frame(&config, 11);
-        assert_eq!(state.elapsed_frames, 2);
-        assert_eq!(state.finished_at_frame, Some(11));
-        assert!(!state.finish_is_confirmed(10));
-        assert!(state.finish_is_confirmed(11));
-
-        state.advance_frame(&config, 12);
-        assert_eq!(state.finished_at_frame, Some(11));
-        assert_eq!(state.elapsed_frames, 2);
-    }
-
-    #[test]
-    fn corrected_rollback_state_does_not_keep_speculative_finish() {
-        let config = config(MatchRules::Stock {
-            starting_stocks: 1,
-            time_limit_frames: None,
-        });
-        let state_before_prediction = MatchState::from_config(&config);
-        let mut predicted_state = state_before_prediction.clone();
-        predicted_state.players[1].stocks_remaining = Some(0);
-        predicted_state.advance_frame(&config, 20);
-        assert_eq!(predicted_state.finished_at_frame, Some(20));
-
-        let mut corrected_state = state_before_prediction;
-        corrected_state.advance_frame(&config, 20);
-        assert_eq!(corrected_state.finished_at_frame, None);
-        assert!(!corrected_state.finish_is_confirmed(20));
-    }
-
-    #[test]
-    fn single_player_stock_match_does_not_finish_by_elimination() {
-        let mut config = config(MatchRules::Stock {
-            starting_stocks: 1,
-            time_limit_frames: None,
-        });
-        config.players.truncate(1);
-        let mut state = MatchState::from_config(&config);
-
-        state.advance_frame(&config, 1);
-        assert_eq!(state.finished_at_frame, None);
-
-        state.players[0].stocks_remaining = Some(0);
-        state.advance_frame(&config, 2);
-        assert_eq!(state.finished_at_frame, None);
-    }
-
-    #[test]
-    fn single_player_stock_match_can_finish_by_time_limit() {
-        let mut config = config(MatchRules::Stock {
-            starting_stocks: 1,
-            time_limit_frames: Some(1),
-        });
-        config.players.truncate(1);
-        let mut state = MatchState::from_config(&config);
-
-        state.advance_frame(&config, 7);
-        assert_eq!(state.finished_at_frame, Some(7));
-    }
-}

src/materials/fighter_material.rs

@@ -1,92 +0,0 @@
-use bevy::{
-    gltf::GltfMaterialName,
-    pbr::{ExtendedMaterial, MaterialExtension},
-    prelude::*,
-    render::render_resource::AsBindGroup,
-    shader::ShaderRef,
-    world_serialization::WorldInstanceReady,
-};
-
-pub type FighterMaterial = ExtendedMaterial<StandardMaterial, FighterMaterialExtension>;
-
-#[derive(Component)]
-pub struct FighterMesh {
-    pub fighter: Entity,
-}
-
-#[derive(Asset, AsBindGroup, Reflect, Debug, Clone, Default)]
-pub struct FighterMaterialExtension {
-    #[uniform(100)]
-    status_color: LinearRgba,
-    #[uniform(100)]
-    status_color_intensity: f32,
-}
-
-const SHADER_ASSET_PATH: &str = "embedded://shinespark/shaders/fighter.wgsl";
-
-impl FighterMaterialExtension {
-    pub fn new(status_color: Color) -> Self {
-        Self {
-            status_color: status_color.into(),
-            status_color_intensity: 0.0,
-            ..default()
-        }
-    }
-
-    pub fn update_status_color(&mut self, status_color: LinearRgba, intensity: f32) {
-        self.status_color = status_color;
-        self.status_color_intensity = intensity;
-    }
-}
-
-impl MaterialExtension for FighterMaterialExtension {
-    fn fragment_shader() -> ShaderRef {
-        SHADER_ASSET_PATH.into()
-    }
-
-    fn deferred_fragment_shader() -> ShaderRef {
-        SHADER_ASSET_PATH.into()
-    }
-}
-
-pub fn bind_fighter_material(
-    scene_ready: On<WorldInstanceReady>,
-    mut commands: Commands,
-    children: Query<&Children>,
-    //color_override: Query<&ColorOverride>,
-    mesh_materials: Query<(Entity, &MeshMaterial3d<StandardMaterial>, &GltfMaterialName)>,
-    mut asset_materials: ResMut<Assets<FighterMaterial>>,
-    original_materials: Res<Assets<StandardMaterial>>,
-) {
-    for descendant in children.iter_descendants(scene_ready.entity) {
-        let Ok((entity, id, material_name)) = mesh_materials.get(descendant) else {
-            continue;
-        };
-
-        if !material_name.starts_with("Fighter_") {
-            continue;
-        }
-
-        let Some(original_material) = original_materials.get(id.id()) else {
-            continue;
-        };
-
-        commands
-            .entity(entity)
-            .remove::<MeshMaterial3d<StandardMaterial>>()
-            .insert((
-                MeshMaterial3d(asset_materials.add(ExtendedMaterial {
-                    base: StandardMaterial {
-                        // can be used in forward or deferred mode
-                        ..original_material.clone()
-                    },
-                    extension: FighterMaterialExtension::new(
-                        bevy::color::palettes::css::BLUE.into(),
-                    ),
-                })),
-                FighterMesh {
-                    fighter: scene_ready.entity,
-                },
-            ));
-    }
-}

src/materials/mod.rs

@@ -1,20 +0,0 @@
-use bevy::{
-    asset::embedded_asset, prelude::*,
-};
-
-
-
-pub mod fighter_material;
-
-pub struct ShinesparkMaterialPlugin;
-
-
-impl Plugin for ShinesparkMaterialPlugin {
-    fn build(&self, app: &mut App) {
-        let omit_prefix = "";
-        embedded_asset!(app, omit_prefix, "shaders/fighter.wgsl");
-        app
-            .add_observer(fighter_material::bind_fighter_material)
-            .add_plugins(MaterialPlugin::<fighter_material::FighterMaterial>::default());
-    }
-}

src/materials/shaders/fighter.wgsl

@@ -1,67 +0,0 @@
-#import bevy_pbr::{
-    pbr_fragment::pbr_input_from_standard_material,
-    pbr_functions::alpha_discard,
-}
-
-#ifdef PREPASS_PIPELINE
-#import bevy_pbr::{
-    prepass_io::{VertexOutput, FragmentOutput},
-    pbr_deferred_functions::deferred_output,
-}
-#else
-#import bevy_pbr::{
-    forward_io::{VertexOutput, FragmentOutput},
-    pbr_functions::{apply_pbr_lighting, main_pass_post_lighting_processing},
-}
-#endif
-
-struct FighterExtendedMaterial {
-    status_color: vec4<f32>,
-    status_color_intensity: f32,
-#ifdef SIXTEEN_BYTE_ALIGNMENT
-    // Web examples WebGL2 support: structs must be 16 byte aligned.
-    _webgl2_padding_8b: u32,
-    _webgl2_padding_12b: u32,
-    _webgl2_padding_16b: u32,
-#endif
-}
-
-@group(#{MATERIAL_BIND_GROUP}) @binding(100)
-var<uniform> fighter_material: FighterExtendedMaterial;
-
-@fragment
-fn fragment(
-    in: VertexOutput,
-    @builtin(front_facing) is_front: bool,
-) -> FragmentOutput {
-    // generate a PbrInput struct from the StandardMaterial bindings
-    var pbr_input = pbr_input_from_standard_material(in, is_front);
-
-    // we can optionally modify the input before lighting and alpha_discard is applied
-    //pbr_input.material.base_color.b = pbr_input.material.base_color.r;
-
-    // alpha discard
-    pbr_input.material.base_color = alpha_discard(pbr_input.material, pbr_input.material.base_color);
-
-#ifdef PREPASS_PIPELINE
-    // in deferred mode we can't modify anything after that, as lighting is run in a separate fullscreen shader.
-    let out = deferred_output(in, pbr_input);
-#else
-    var out: FragmentOutput;
-    // apply lighting
-    out.color = apply_pbr_lighting(pbr_input);
-
-    // we can optionally modify the lit color before post-processing is applied
-    var quantize_steps: i32 = 2;
-    out.color = vec4<f32>(vec4<u32>(out.color * f32(quantize_steps))) / f32(quantize_steps);
-
-    // apply in-shader post processing (fog, alpha-premultiply, and also tonemapping, debanding if the camera is non-hdr)
-    // note this does not include fullscreen postprocessing effects like bloom.
-    out.color = main_pass_post_lighting_processing(pbr_input, out.color);
-
-    out.color = mix(out.color, fighter_material.status_color, fighter_material.status_color_intensity * 0.5);
-
-#endif
-
-    return out;
-}

src/math/fixed_transform.rs

@@ -1,136 +0,0 @@
-use std::io;
-
-use bevy::prelude::*;
-
-use crate::math::{
-    int::{FGWide, FGi32, FGi32Ext},
-    vec3::FGVec3,
-};
-
-/// Parent transforms are composed after quantization, which makes every runtime sample platform-independent.
-#[derive(Clone, Copy, Debug, PartialEq, Eq, serde::Serialize, serde::Deserialize, Hash)]
-pub struct FixedMat4 {
-    pub cols: [[FGi32; 4]; 4],
-}
-
-impl FixedMat4 {
-    pub const IDENTITY: Self = Self {
-        cols: [
-            [FGi32::ONE, FGi32::ZERO, FGi32::ZERO, FGi32::ZERO],
-            [FGi32::ZERO, FGi32::ONE, FGi32::ZERO, FGi32::ZERO],
-            [FGi32::ZERO, FGi32::ZERO, FGi32::ONE, FGi32::ZERO],
-            [FGi32::ZERO, FGi32::ZERO, FGi32::ZERO, FGi32::ONE],
-        ],
-    };
-
-    pub fn from_mat4(matrix: Mat4) -> io::Result<Self> {
-        let values = matrix.to_cols_array();
-        let mut cols = [[FGi32::ZERO; 4]; 4];
-        for (index, value) in values.into_iter().enumerate() {
-            cols[index / 4][index % 4] = FGi32::checked_from_num(value).ok_or_else(|| {
-                io::Error::new(
-                    io::ErrorKind::InvalidData,
-                    "animation transform overflows Q16.16",
-                )
-            })?;
-        }
-        Ok(Self { cols })
-    }
-
-    pub fn to_mat4(self) -> Mat4 {
-        Mat4::from_cols_array_2d(&self.cols.map(|column| column.map(|value| value.to_num())))
-    }
-
-    pub fn mul(self, rhs: Self) -> Self {
-        let mut cols = [[FGi32::ZERO; 4]; 4];
-        for column in 0..4 {
-            for row in 0..4 {
-                let mut value = FGWide::ZERO;
-                for k in 0..4 {
-                    value +=
-                        FGWide::from_num(self.cols[k][row]) * FGWide::from_num(rhs.cols[column][k]);
-                }
-                cols[column][row] = FGi32::from_num(value);
-            }
-        }
-        Self { cols }
-    }
-
-    pub fn transform_point(self, point: FGVec3) -> FGVec3 {
-        let input = [point.x, point.y, point.z, FGi32::ONE];
-        let mut output = [FGi32::ZERO; 3];
-        for row in 0..3 {
-            let mut value = FGWide::ZERO;
-            for (column, input) in input.into_iter().enumerate() {
-                value += FGWide::from_num(self.cols[column][row]) * FGWide::from_num(input);
-            }
-            output[row] = FGi32::from_num(value);
-        }
-        FGVec3 {
-            x: output[0],
-            y: output[1],
-            z: output[2],
-        }
-    }
-
-    pub fn translate(&mut self, translation: FGVec3) {
-        self.cols[3][0] = translation.x;
-        self.cols[3][1] = translation.y;
-        self.cols[3][2] = translation.z;
-    }
-    pub fn with_translation(mut self, translation: FGVec3) -> Self {
-        self.translate(translation);
-        self
-    }
-
-    pub fn with_rotation(mut self, rotation: FGVec3) -> Self {
-        let (sin_x, cos_x) = rotation.x.sin_cos_rads();
-        let (sin_y, cos_y) = rotation.y.sin_cos_rads();
-        let (sin_z, cos_z) = rotation.z.sin_cos_rads();
-        self.cols[0][0] = cos_y * cos_z;
-        self.cols[0][1] = cos_x * sin_z + sin_x * sin_y * cos_z;
-        self.cols[0][2] = sin_x * sin_z - cos_x * sin_y * cos_z;
-        self.cols[1][0] = -cos_y * sin_z;
-        self.cols[1][1] = cos_x * cos_z - sin_x * sin_y * sin_z;
-        self.cols[1][2] = sin_x * cos_z + cos_x * sin_y * sin_z;
-        self.cols[2][0] = sin_y;
-        self.cols[2][1] = -sin_x * cos_y;
-        self.cols[2][2] = cos_x * cos_y;
-        self
-    }
-
-    pub fn get_translation(&self) -> FGVec3 {
-        FGVec3::new(self.cols[3][0], self.cols[3][1], self.cols[3][2])
-    }
-
-    pub fn rotate_y(self, quarter_turns: u8) -> Self {
-        let rotation = match quarter_turns % 4 {
-            0 => Self::IDENTITY,
-            1 => Self {
-                cols: [
-                    [FGi32::ZERO, FGi32::ZERO, FGi32::NEG_ONE, FGi32::ZERO],
-                    [FGi32::ZERO, FGi32::ONE, FGi32::ZERO, FGi32::ZERO],
-                    [FGi32::ONE, FGi32::ZERO, FGi32::ZERO, FGi32::ZERO],
-                    [FGi32::ZERO, FGi32::ZERO, FGi32::ZERO, FGi32::ONE],
-                ],
-            },
-            2 => Self {
-                cols: [
-                    [FGi32::NEG_ONE, FGi32::ZERO, FGi32::ZERO, FGi32::ZERO],
-                    [FGi32::ZERO, FGi32::ONE, FGi32::ZERO, FGi32::ZERO],
-                    [FGi32::ZERO, FGi32::ZERO, FGi32::NEG_ONE, FGi32::ZERO],
-                    [FGi32::ZERO, FGi32::ZERO, FGi32::ZERO, FGi32::ONE],
-                ],
-            },
-            _ => Self {
-                cols: [
-                    [FGi32::ZERO, FGi32::ZERO, FGi32::ONE, FGi32::ZERO],
-                    [FGi32::ZERO, FGi32::ONE, FGi32::ZERO, FGi32::ZERO],
-                    [FGi32::NEG_ONE, FGi32::ZERO, FGi32::ZERO, FGi32::ZERO],
-                    [FGi32::ZERO, FGi32::ZERO, FGi32::ZERO, FGi32::ONE],
-                ],
-            },
-        };
-        self.mul(rotation)
-    }
-}

src/math/mod.rs

@@ -1,6 +1,4 @@
 pub mod int;
 pub mod segment;
 pub mod vec;
-pub mod fixed_transform;
 pub mod vec3;
-pub mod rect;

src/math/rect.rs

@@ -1,12 +0,0 @@
-use crate::math::vec::FGVec2;
-
-pub struct FGRect {
-    pub origin: FGVec2,
-    pub end: FGVec2,
-}
-
-impl FGRect {
-    pub fn contains_point(&self, point: FGVec2) -> bool {
-        point.x >= self.origin.x && point.y <= self.origin.y && point.x <= self.end.x && point.y >= self.end.y
-    }
-}

src/math/vec.rs

@@ -2,7 +2,7 @@ use bevy::math::Vec2;
 use bevy::prelude::*;
 use fixed::types::I32F32;
 use serde::{Deserialize, Serialize};
-use std::ops::{Add, AddAssign, Div, Mul, MulAssign, Sub, SubAssign};
+use std::ops::{Add, AddAssign, Div, Mul, MulAssign, Sub};
 
 use super::int::{FGWide, FGi32};
 
@@ -227,15 +227,6 @@ impl AddAssign for FGVec2 {
     }
 }
 
-impl SubAssign for FGVec2 {
-    fn sub_assign(&mut self, rhs: Self) {
-        *self = Self {
-            x: self.x - rhs.x,
-            y: self.y - rhs.y,
-        }
-    }
-}
-
 impl MulAssign for FGVec2 {
     fn mul_assign(&mut self, rhs: Self) {
         *self = Self {