Add animation baking system

.gitignore

@@ -1,2 +1,3 @@
 /target
 /.jackdaw
+imported_assets

Cargo.lock

@@ -491,6 +491,12 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "be5eb007b7cacc6c660343e96f650fedf4b5a77512399eb952ca6642cf8d13f7"
 
+[[package]]
+name = "base64"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
+
 [[package]]
 name = "base64"
 version = "0.22.1"
@@ -1207,7 +1213,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84e21ad83b7dc8d456491ea3d50057685d8c4cca8bc52a1b4a7161c86c369842"
 dependencies = [
  "async-lock",
- "base64",
+ "base64 0.22.1",
  "bevy_animation",
  "bevy_app",
  "bevy_asset",
@@ -3516,11 +3522,14 @@ dependencies = [
  "bevy_egui",
  "bevy_ggrs",
  "bevy_wind_waker_shader",
+ "bincode",
  "bitfields",
  "clap",
  "fixed",
  "gc-adapter-neo",
+ "gltf",
  "jackdaw_runtime",
+ "ron 0.12.2",
  "serde",
  "strum",
  "strum_macros",
@@ -3733,10 +3742,13 @@ version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3ce1918195723ce6ac74e80542c5a96a40c2b26162c1957a5cd70799b8cacf7"
 dependencies = [
+ "base64 0.13.1",
  "byteorder",
  "gltf-json",
+ "image",
  "lazy_static",
  "serde_json",
+ "urlencoding",
 ]
 
 [[package]]
@@ -4164,6 +4176,8 @@ dependencies = [
  "num-traits",
  "png",
  "tiff",
+ "zune-core",
+ "zune-jpeg",
 ]
 
 [[package]]
@@ -6205,7 +6219,7 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "db09040cc89e461f1a265139777a2bde7f8d8c67c4936f700c63ce3e2904d468"
 dependencies = [
- "base64",
+ "base64 0.22.1",
  "bitflags 2.13.1",
  "serde",
  "serde_derive",
@@ -7170,6 +7184,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "urlencoding"
+version = "2.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "daf8dba3b7eb870caf1ddeed7bc9d2a049f3cfdfae7cb521b087cc33ae4c49da"
+
 [[package]]
 name = "utf8_iter"
 version = "1.0.4"

Cargo.toml

@@ -15,7 +15,7 @@ authors = [""]
 [workspace]
 
 [dependencies]
-bevy = { version = "0.19", features = ["dynamic_linking", "free_camera"] }
+bevy = { version = "0.19", features = ["asset_processor", "dynamic_linking", "free_camera"] }
 # 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.
@@ -26,6 +26,9 @@ bevy-inspector-egui = "0.37.0"
 bevy_egui = "0.40.0"
 bevy_ggrs = { git = "https://github.com/gschup/bevy_ggrs" }
 serde = "1.0.229"
+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" }

assets/fighters/test/test.fighter.ron

@@ -1,11 +1,12 @@
 (
     id: TestFighter,
     model_path: "fighters/test/test-fighter-normal.glb",
+    baked_animation_path: "fighters/test/test.fighterbake",
     attributes: (
         base_walk_accel: "0.1",
         stick_walk_accel: "0.16",
         max_walk_vel: "0.7",
-        ground_friction: "0.02",
+        ground_friction: "0.09",
         dash_acceleration_duration: 13,
         dash_duration: 24,
         base_dash_accel: "0.02",
@@ -32,6 +33,14 @@
         air_dodge_velocity: "2.790",
         air_dodge_decay: "0.9"
     ),
+    camera: (
+        vertical_origin_offset: "10.0",
+        forward_extent: "25.5",
+        backward_extent: "2.5",
+        upward_extent: "15.0",
+        downward_extent: "5.0",
+        visibility_radius: "5.0",
+    ),
     animations: {
         Wait: "PlyPurin5K_Share_ACTION_Wait",
         Walk: "PlyPurin5K_Share_ACTION_WalkFast",
@@ -43,6 +52,7 @@
         Landing: "PlyPurin5K_Share_ACTION_Landing",
         AirDodge: "PlyPurin5K_Share_ACTION_EscapeAir",
         DoubleJump: "PlyPurin5K_Share_ACTION_JumpAerialF1",
-        Fall: "PlyPurin5K_Share_ACTION_Fall"
+        Fall: "PlyPurin5K_Share_ACTION_Fall",
+        Turn: "PlyPurin5K_Share_ACTION_Turn",
     }
 )

assets/fighters/test/test.fighterbake

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

assets/stages/test.stage.ron

@@ -1,6 +1,25 @@
 (
     id: TestStage,
     model_path: "stages/battlefield.glb#Scene0",
+    camera: (
+        left: -75.0,
+        right: 75.0,
+        bottom: -30.0,
+        top: 70.0,
+        origin: (0.0, 15.0),
+        vertical_fov_degrees: 30.0,
+        min_depth: 150.0,
+        max_depth: 400.0,
+        subject_scale: 1.0,
+        tracking_smoothness: 3.0,
+        vertical_tilt_degrees: 0.0,
+        horizontal_pan_coefficient: 0.0,
+        vertical_pan_coefficient: 0.0,
+        max_horizontal_pan_degrees: 17.5,
+        max_upward_pan_degrees: 5.0,
+        max_downward_pan_degrees: 7.0,
+        max_downward_expansion: 40.0,
+    ),
     polygons: [
         (
             poly_type: Platform,

src/camera/mod.rs

@@ -2,7 +2,7 @@
 
 use bevy::prelude::*;
 
-use crate::stage::manifest::StageCameraProfile;
+use crate::{fighter::manifest::FighterManifest, stage::manifest::StageCameraProfile};
 
 const EMPTY_FRAME_HALF_SIZE: f32 = 40.0;
 const SUBJECT_COUNT_SCALES: [f32; 4] = [1.5, 1.32, 1.16, 1.0];
@@ -208,7 +208,7 @@ fn update_match_camera(
     fighters: Query<
         (
             &crate::fighter::motion::FighterTranslation,
-            &crate::fighter::FighterCameraProfile,
+            &crate::fighter::Fighter,
             &crate::fighter::FighterFacingDirection,
         ),
         With<crate::player::Player>,
@@ -219,11 +219,13 @@ fn update_match_camera(
         &mut MatchCamera,
         &StageCameraProfile,
     )>,
+    manifests: Res<Assets<FighterManifest>>
 ) {
-    let subjects = fighters.iter().map(|(translation, profile, facing)| {
+    let subjects = fighters.iter().map(|(translation, fighter, facing)| {
+        let manifest = manifests.get(&fighter.manifest).expect("Fighter manifest should be valid");
         fighter_subject_bounds(
             Vec2::new(translation.x.to_num(), translation.y.to_num()),
-            *profile,
+            manifest.camera,
             *facing,
         )
     });
@@ -296,12 +298,13 @@ fn debug_draw_camera(
     fighters: Query<
         (
             &crate::fighter::motion::FighterTranslation,
-            &crate::fighter::FighterCameraProfile,
+            &crate::fighter::Fighter,
             &crate::fighter::FighterFacingDirection,
         ),
         With<crate::player::Player>,
     >,
     cameras: Query<(&MatchCamera, &StageCameraProfile)>,
+    manifests: Res<Assets<FighterManifest>>,
 ) {
     for (camera, profile) in &cameras {
         draw_rectangle(
@@ -315,10 +318,11 @@ 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, fighter_profile, facing) in &fighters {
+        for (translation, fighter, facing) in &fighters {
+            let manifest = manifests.get(&fighter.manifest).expect("Fighter manifest should be valid");
             let subject = fighter_subject_bounds(
                 Vec2::new(translation.x.to_num(), translation.y.to_num()),
-                *fighter_profile,
+                manifest.camera,
                 *facing,
             );
             draw_rectangle(

src/fighter/animation.rs

@@ -15,6 +15,37 @@ impl FighterAnimationPlayerLink {
     }
 }
 
+/// The simulation-owned animation clock. Rendering may interpolate freely, but
+/// gameplay samples baked data only with this rollback-tracked value.
+#[derive(Component, Clone, Copy, Debug, Hash, PartialEq, Eq)]
+pub struct FighterAnimationFrame {
+    pub kind: AnimKind,
+    pub frame: u32,
+    pub repeat: bool,
+}
+
+impl FighterAnimationFrame {
+    pub const fn new(kind: AnimKind, repeat: bool) -> Self {
+        Self { kind, frame: 0, repeat }
+    }
+
+    pub fn reset(&mut self, kind: AnimKind, repeat: bool) {
+        self.kind = kind;
+        self.frame = 0;
+        self.repeat = repeat;
+    }
+
+    pub fn advance(&mut self) {
+        self.frame = self.frame.saturating_add(1);
+    }
+}
+
+pub fn advance_fighter_animation_frames(mut fighters: Query<&mut FighterAnimationFrame>) {
+    for mut animation in &mut fighters {
+        animation.advance();
+    }
+}
+
 pub fn apply_fighter_translation_to_visuals(
     query: Query<(&FighterTranslation, &FighterECB, &mut Transform)>,
 ) {
@@ -47,11 +78,16 @@ pub fn setup_fighter_animation_player(
     }
 }
 
-pub fn apply_animation(children: Query<(&mut Transform, &FighterFacingDirection), With<FighterVisual>>) {
+pub fn apply_animation(children: Query<(&mut Transform, &FighterFacingDirection, &FighterAnimationFrame), With<FighterVisual>>) {
-    for (mut trf, facing_direction) in children {
+    for (mut trf, facing_direction, frame) in children {
         // Melee model scale is in decimeters
         trf.rotation = Quat::IDENTITY;
-        trf.rotate_local_y(std::f32::consts::PI * 0.5 * facing_direction.to_sign().to_num::<f32>());
+        if let AnimKind::Turn = frame.kind {
+            trf.rotate_local_y(std::f32::consts::PI * -0.5 * facing_direction.to_sign().to_num::<f32>());
+        } else {
+            trf.rotate_local_y(std::f32::consts::PI * 0.5 * facing_direction.to_sign().to_num::<f32>());
+        }
+        
     }
 }
 
@@ -92,4 +128,5 @@ pub enum AnimKind {
     Landing,
     AirDodge,
     Fall,
+    Turn,
 }

src/fighter/attributes.rs

@@ -6,7 +6,7 @@ use crate::{input::FighterInputFrame, math::int::FGi32};
 /// Per-fighter tuning values. These are character data, not global rules —
 /// anything that applies to every fighter belongs in
 /// [`crate::game_settings::FighterSettingsCommon`] instead.
-#[derive(Asset, Component, Clone, Copy, Reflect, Serialize, Deserialize)]
+#[derive(Asset, Clone, Copy, Reflect, Serialize, Deserialize)]
 #[reflect(opaque)]
 pub struct FighterAttributes {
     pub base_walk_accel: FGi32,

src/fighter/baked_animation.rs

@@ -0,0 +1,528 @@
+//! Deterministic, fighter-local skeletal animation samples for gameplay.
+//!
+//! Rendering continues to use Bevy's floating-point animation player. Gameplay
+//! reads this asset instead, so rollback never depends on render-time sampling.
+
+use std::{collections::HashMap, io, path::Path};
+
+use bevy::{
+    asset::{
+        AssetLoader, AssetPath, AsyncWriteExt, LoadContext,
+        io::{Reader, Writer},
+        processor::LoadTransformAndSave,
+        saver::{AssetSaver, SavedAsset},
+        transformer::{AssetTransformer, TransformedAsset},
+    },
+    prelude::*,
+    reflect::TypePath,
+};
+use serde::{Deserialize, Serialize};
+
+use crate::{
+    fighter::{animation::AnimKind, manifest::FighterManifest},
+    math::int::{FGWide, FGi32},
+};
+
+pub const BAKED_ANIMATION_FPS: u32 = 60;
+
+/// Parent transforms are composed after
+/// quantization, which makes every runtime sample platform-independent.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct FixedMat4 {
+    pub cols: [[FGi32; 4]; 4],
+}
+
+impl FixedMat4 {
+    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 })
+    }
+
+    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 }
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct BakedAnimationClip {
+    /// One model-space matrix per stored node, for each 60 Hz simulation frame.
+    pub frames: Vec<Vec<FixedMat4>>,
+}
+
+#[derive(Asset, TypePath, Clone, Debug, Serialize, Deserialize)]
+pub struct BakedFighterAnimations {
+    pub frame_rate: u32,
+    /// Indexed exactly like every frame in each clip.
+    pub bone_names: Vec<String>,
+    clips: Vec<BakedAnimationClip>,
+    clip_indices: HashMap<AnimKind, usize>,
+}
+
+impl BakedFighterAnimations {
+    pub fn sample(&self, kind: AnimKind, frame: u32, bone: &str) -> Option<FixedMat4> {
+        let bone_index = self.bone_names.iter().position(|name| name == bone)?;
+        let frames = &self.clip(kind)?.frames;
+        let pose = frames.get(frame as usize).or_else(|| frames.last())?;
+        pose.get(bone_index).copied()
+    }
+
+    pub fn frame_count(&self, kind: AnimKind) -> Option<u32> {
+        self.clip(kind).map(|clip| clip.frames.len() as u32)
+    }
+
+    fn clip(&self, kind: AnimKind) -> Option<&BakedAnimationClip> {
+        self.clip_indices
+            .get(&kind)
+            .and_then(|index| self.clips.get(*index))
+    }
+}
+
+#[derive(Deserialize)]
+struct FighterBakeDeclaration {
+    manifest_path: String,
+}
+
+#[derive(Asset, TypePath)]
+struct FighterBakeSource {
+    model_bytes: Vec<u8>,
+    animations: HashMap<AnimKind, 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))?;
+
+        // The processor's AssetServer reads processed assets. Reading this
+        // source dependency through it would wait for a processed GLB while
+        // this processor is still producing the first processed asset.
+        let model_bytes = std::fs::read(Path::new("assets").join(&manifest.model_path))?;
+        Ok(FighterBakeSource {
+            model_bytes,
+            animations: manifest.animations,
+        })
+    }
+
+    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.animations)?;
+        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;
+
+impl Plugin for BakedAnimationPlugin {
+    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");
+    }
+}
+
+fn bake_gltf(
+    bytes: &[u8],
+    animations: &HashMap<AnimKind, String>,
+) -> io::Result<BakedFighterAnimations> {
+    let (document, buffers, _) = gltf::import_slice(bytes)
+        .map_err(|error| io::Error::new(io::ErrorKind::InvalidData, error))?;
+    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 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 = (duration * BAKED_ANIMATION_FPS as f32).ceil() as usize + 1;
+        let mut frames = Vec::with_capacity(frame_count);
+        for frame in 0..frame_count {
+            let time = frame as f32 / BAKED_ANIMATION_FPS as f32;
+            let local = nodes
+                .iter()
+                .map(|node| local_transform(node.clone(), &channels, time))
+                .collect::<io::Result<Vec<_>>>()?;
+            let mut model = vec![None; nodes.len()];
+            for index in 0..nodes.len() {
+                resolve_model_transform(index, &parents, &local, &mut model)?;
+            }
+            frames.push(model.into_iter().map(Option::unwrap).collect());
+        }
+        let index = clips.len();
+        clips.push(BakedAnimationClip { frames });
+        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,
+        clips,
+        clip_indices,
+    })
+}
+
+fn resolve_model_transform(
+    index: usize,
+    parents: &[Option<usize>],
+    local: &[FixedMat4],
+    model: &mut [Option<FixedMat4>],
+) -> 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)
+}
+
+#[derive(Clone)]
+struct Channel {
+    node: usize,
+    property: gltf::animation::Property,
+    interpolation: gltf::animation::Interpolation,
+    times: Vec<f32>,
+    values: ChannelValues,
+}
+
+impl Channel {
+    fn duration(&self) -> Option<f32> {
+        self.times.last().copied()
+    }
+}
+
+#[derive(Clone)]
+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)
+}
+
+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()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[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 baked = bake_gltf(
+            include_bytes!("../../assets/fighters/test/test-fighter-normal.glb"),
+            &manifest.animations,
+        )
+        .unwrap();
+
+        assert_eq!(baked.frame_rate, BAKED_ANIMATION_FPS);
+        assert!(baked.frame_count(AnimKind::Wait).unwrap() > 1);
+        assert_eq!(baked.clip_indices.len(), manifest.animations.len());
+        assert_eq!(
+            baked.clip_indices[&AnimKind::JumpSquat],
+            baked.clip_indices[&AnimKind::Landing]
+        );
+        assert_eq!(
+            baked.clip(AnimKind::Wait).unwrap().frames[0].len(),
+            baked.bone_names.len()
+        );
+    }
+}

src/fighter/debug.rs

@@ -4,10 +4,15 @@ use bevy::color::palettes::css::ORANGE;
 use bevy::{color::palettes::css::YELLOW, prelude::*};
 use bevy_egui::{EguiContexts, egui};
 
+use crate::fighter::animation::FighterAnimationFrame;
+use crate::fighter::baked_animation::BakedFighterAnimations;
 use crate::fighter::ecb::FighterPreviousECB;
+use crate::fighter::manifest::{FighterManifest, FighterManifestRegistry};
 use crate::fighter::state::StateNameDebug;
-use crate::fighter::{FighterECB, FighterPreviousTranslation, FighterTranslation, FighterVelocity};
+use crate::fighter::visual::FighterAnimations;
+use crate::fighter::{Fighter, FighterECB, FighterFacingDirection, FighterPreviousTranslation, FighterTranslation, FighterVelocity};
 use crate::input::FighterInput;
+use crate::match_loading::MatchPlayer;
 
 pub fn debug_draw_ecb(
     ecbs: Query<(
@@ -30,22 +35,42 @@ pub fn debug_draw_ecb(
         gizmos.lineloop(prev_transformed, ORANGE);
     }
 }
-
 pub fn fighter_debug(
     mut contexts: EguiContexts,
     query: Query<(&FighterVelocity, &FighterInput, &StateNameDebug)>,
 ) -> Result {
-    for (vel, input, name) in query {
+    for (i, (vel, input, name)) in query.iter().enumerate() {
-        egui::Window::new("Hello").show(contexts.ctx_mut()?, |ui| {
+        egui::Window::new(format!("Player {}", i)).show(contexts.ctx_mut()?, |ui| {
             ui.label(format!("State: {}", name.0));
             ui.label(format!("{:?}", vel));
             ui.label(format!("{:?}", input.get_last_frame()));
         });
-    }
 
+    }
     Ok(())
 }
 
+pub fn animation_debug(
+    query: Query<(
+        &GlobalTransform,
+        &FighterAnimationFrame,
+        &FighterAnimations,
+    )>,
+    baked_anims: Res<Assets<BakedFighterAnimations>>,
+    mut gizmos: Gizmos,
+) {
+    for (global_transform, frame, anims) in query {
+        let baked: &BakedFighterAnimations = baked_anims.get(&anims.baked).expect("Baked anims should be in");
+        for bone in &baked.bone_names {
+            let out = anims.sample_bone(&baked_anims, *frame, bone);
+            if let Some(out) = out {
+                let pos = global_transform.transform_point(Vec3::new(out.cols[3][0].to_num(), out.cols[3][1].to_num(), out.cols[3][2].to_num()));
+                gizmos.cross(pos, 0.5, bevy::color::palettes::css::RED);
+            }
+        }
+    }
+}
+
 pub fn update_config(
     mut config_store: ResMut<GizmoConfigStore>,
     keyboard: Res<ButtonInput<KeyCode>>,

src/fighter/ecb.rs

@@ -36,29 +36,29 @@ pub fn snapshot_fighter_ecb(fighters: Query<(&FighterECB, &mut FighterPreviousEC
 
 impl FighterECB {
     pub fn to_3d_lineloop(&self, trf: Transform) -> [Vec3; 4] {
-        let rel_up = trf.transform_point(Vec3::new(0.0, self.vertical_half.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, (-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(), 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(), 0.0, 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 {
-        FGVec2::new(FGi32::ZERO, -self.vertical_half)
+        FGVec2::new(FGi32::ZERO, FGi32::ZERO)
     }
 }
 
 impl FighterPreviousECB {
     pub fn to_3d_lineloop(&self, trf: Transform) -> [Vec3; 4] {
-        let rel_up = trf.transform_point(Vec3::new(0.0, self.vertical_half.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, (-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(), 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(), 0.0, 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 {
-        FGVec2::new(FGi32::ZERO, -self.vertical_half)
+        FGVec2::new(FGi32::ZERO, FGi32::ZERO)
     }
 }
 

src/fighter/manifest.rs

@@ -21,6 +21,7 @@ pub enum FighterId {
 pub struct FighterManifest {
     pub id: FighterId,
     pub model_path: String,
+    pub baked_animation_path: String,
     pub attributes: FighterAttributes,
     pub camera: FighterCameraProfile,
     pub animations: HashMap<AnimKind, String>,
@@ -87,6 +88,13 @@ pub fn prepare_fighter_manifests(
             );
             return;
         }
+        if manifest.baked_animation_path.is_empty() {
+            fail(
+                &mut next_state,
+                &format!("{:?} has an empty baked animation path", manifest.id),
+            );
+            return;
+        }
         if !manifest.animations.contains_key(&AnimKind::Wait) {
             fail(
                 &mut next_state,

src/fighter/mod.rs

@@ -7,6 +7,7 @@ use bevy_ggrs::prelude::*;
 use serde::{Deserialize, Serialize};
 
 pub mod animation;
+pub mod baked_animation;
 pub mod attributes;
 pub mod collision;
 pub mod debug;
@@ -27,15 +28,8 @@ pub use motion::{FighterPreviousTranslation, FighterTranslation, FighterVelocity
 
 use crate::{
     fighter::{
-        animation::animation_init,
+        animation::animation_init, manifest::FighterManifest, state::{FighterState, fall::FallState}, visual::FighterAnimations,
-        state::{FighterState, fall::FallState},
+    }, input::FighterInput, math::{int::FGi32, vec::FGVec2}, player::Player, schedule::GameplaySet, stage::line::StageCollision,
-        visual::FighterAnimations,
-    },
-    input::FighterInput,
-    math::{int::FGi32, vec::FGVec2},
-    player::Player,
-    schedule::GameplaySet,
-    stage::line::StageCollision,
 };
 use state::state_interrupt_system;
 
@@ -49,7 +43,17 @@ pub enum FighterFacingDirection {
     Left,
     Right,
 }
-#[derive(Component, Copy, Clone, Debug, Reflect, Serialize, Deserialize)]
+
+impl FighterFacingDirection {
+    fn reverse(&self) -> Self {
+        match self {
+            FighterFacingDirection::Left => FighterFacingDirection::Right,
+            FighterFacingDirection::Right => FighterFacingDirection::Left,
+        }
+    }
+}
+
+#[derive(Copy, Clone, Debug, Reflect, Serialize, Deserialize)]
 #[reflect(opaque)]
 pub struct FighterCameraProfile {
     pub vertical_origin_offset: FGi32,
@@ -84,6 +88,12 @@ impl FighterFacingDirection {
 #[require(Transform)]
 pub struct FighterVisual;
 
+#[derive(Component)]
+pub struct Fighter {
+    id: FighterId,
+    pub manifest: Handle<FighterManifest>
+}
+
 impl Plugin for FighterPlugin {
     fn build(&self, app: &mut App) {
         app.add_systems(
@@ -95,6 +105,7 @@ impl Plugin for FighterPlugin {
             GgrsSchedule,
             (
                 ecb::snapshot_fighter_ecb.before(state_interrupt_system),
+                animation::advance_fighter_animation_frames.before(state_interrupt_system),
                 state::state_interrupt_system,
             )
                 .in_set(GameplaySet::Interrupt),
@@ -130,15 +141,19 @@ impl Plugin for FighterPlugin {
         .rollback_component_with_copy::<FighterVelocity>()
         .rollback_component_with_copy::<FighterTranslation>()
         .rollback_component_with_copy::<FighterPreviousTranslation>()
-        .rollback_component_with_copy::<FighterAttributes>()
+        .rollback_component_with_copy::<animation::FighterAnimationFrame>()
+        .checksum_component_with_hash::<animation::FighterAnimationFrame>()
         .rollback_component_with_copy::<Grounded>()
+        .rollback_component_with_copy::<FighterFacingDirection>()
         .rollback_resource_with_reflect::<StageCollision>()
         // Debug views.
         .add_systems(FixedPostUpdate, debug::debug_draw_ecb)
         .add_systems(EguiPrimaryContextPass, debug::fighter_debug)
+        .add_systems(FixedPostUpdate, debug::animation_debug)
         .add_systems(EguiPrimaryContextPass, debug::update_config)
         .rollback_component_with_clone::<FighterState>()
         .checksum_component_with_hash::<FighterState>()
+        .checksum_component_with_hash::<FighterFacingDirection>()
         .register_type::<FighterFacingDirection>();
     }
 }
@@ -147,8 +162,8 @@ pub fn spawn_fighter(
     commands: &mut Commands,
     player_handle: usize,
     spawn_position: FGVec2,
+    manifest: (Handle<FighterManifest>, &FighterManifest),
     attributes: FighterAttributes,
-    camera_profile: FighterCameraProfile,
     animations: FighterAnimations,
     visual_root: WorldAssetRoot,
 ) {
@@ -157,6 +172,10 @@ pub fn spawn_fighter(
         Player {
             handle: player_handle,
         },
+        Fighter {
+            id: manifest.1.id,
+            manifest: manifest.0
+        },
         FighterFacingDirection::Right,
         FighterECB {
             vertical_half: FGi32::lit("5.0"),
@@ -164,11 +183,10 @@ pub fn spawn_fighter(
         },
         FighterVelocity::default(),
         FighterTranslation(spawn_position),
-        attributes,
-        camera_profile,
         visual_root,
         animations,
         FighterState::Fall(FallState),
+        animation::FighterAnimationFrame::new(animation::AnimKind::Wait, true),
         FighterVisual,
         FighterInput::default(),
     ));

src/fighter/state/air.rs

@@ -7,7 +7,11 @@ pub fn integrate_gravity(velocity: &mut FighterVelocity, attributes: &FighterAtt
     velocity.y = velocity.y.max(-attributes.terminal_velocity);
 }
 
-pub fn apply_air_drift(velocity: &mut FighterVelocity, attribs: &FighterAttributes, input: &FighterInput) {
+pub fn apply_air_drift(
+    velocity: &mut FighterVelocity,
+    attribs: &FighterAttributes,
+    input: &FighterInput,
+) {
     if input.get_last_frame().movement.x.is_zero() {
         if velocity.x.abs() < attribs.air_friction {
             velocity.x = FGi32::ZERO;
@@ -16,9 +20,12 @@ pub fn apply_air_drift(velocity: &mut FighterVelocity, attribs: &FighterAttribut
             velocity.x += (-velocity_sign) * attribs.air_friction;
         }
     } else {
-        let target_velocity = input.get_last_frame().movement.x.signum() * attribs.max_air_horizontal_velocity;
+        let target_velocity =
-        let acceleration = input.get_last_frame().movement.x.signum() * attribs.air_acceleration_base;
+            input.get_last_frame().movement.x.signum() * attribs.max_air_horizontal_velocity;
-        let mut acceleration = acceleration + input.get_last_frame().movement.x * attribs.air_acceleration_stick;
+        let acceleration =
+            input.get_last_frame().movement.x.signum() * attribs.air_acceleration_base;
+        let mut acceleration =
+            acceleration + input.get_last_frame().movement.x * attribs.air_acceleration_stick;
         let velocity_x = velocity.x;
         if !(velocity_x * acceleration < FGi32::ZERO) {
             if acceleration > FGi32::ZERO {
@@ -46,13 +53,11 @@ pub fn apply_air_drift(velocity: &mut FighterVelocity, attribs: &FighterAttribut
     }
 }
 
-
 pub fn apply_air_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 += velocity.0;

src/fighter/state/air_dodge.rs

@@ -14,7 +14,9 @@ use crate::{
             wait::WaitState,
             walk,
         },
-    }, input, math::vec::FGVec2,
+    },
+    input,
+    math::vec::FGVec2,
 };
 
 #[derive(Debug, Clone, Hash)]
@@ -26,8 +28,8 @@ pub struct AirDodgeState {
 impl FighterStateImpl for AirDodgeState {
     const NAME: &'static str = "AirDodge";
 
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
-        if self.duration_counter >= state_context.fighter_attribs.air_dodge_duration {
+        if self.duration_counter >= state_context.fighter_manifest.attributes.air_dodge_duration {
             Some(FighterState::Fall(FallState))
         } else {
             None
@@ -37,7 +39,7 @@ impl FighterStateImpl for AirDodgeState {
     fn update(&mut self, state_context: &mut FighterStateContext) {
         self.duration_counter += 1;
 
-        state_context.velocity.0 *= state_context.fighter_attribs.air_dodge_decay;
+        state_context.velocity.0 *= state_context.fighter_manifest.attributes.air_dodge_decay;
 
         air::apply_air_motion(
             state_context.velocity,
@@ -66,13 +68,10 @@ impl FighterStateImpl for AirDodgeState {
     }
 
     fn on_enter(&mut self, state_context: &mut FighterStateContext) {
-        state_context.animation_transitions.play(
+        state_context.play_animation(AnimKind::AirDodge, false);
-            state_context.animation_player,
-            state_context.animations.clips[&AnimKind::AirDodge],
-            Duration::ZERO,
-        );
 
-        state_context.velocity.0 = self.direction * state_context.fighter_attribs.air_dodge_velocity;
+        state_context.velocity.0 =
+            self.direction * state_context.fighter_manifest.attributes.air_dodge_velocity;
     }
 }
 

src/fighter/state/dash.rs

@@ -4,11 +4,11 @@ use std::time::Duration;
 use bevy::prelude::*;
 
 use super::{FighterStateContext, FighterStateImpl, ground, run, wait, walk};
+use crate::fighter::FighterFacingDirection;
 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::fighter::FighterFacingDirection;
 use crate::input::FighterCommands::{SmashMoveLeft, SmashMoveRight};
 
 #[derive(Debug, Clone)]
@@ -37,9 +37,9 @@ impl DashState {
 
 impl FighterStateImpl for DashState {
     const NAME: &'static str = "Dash";
-    fn check_interrupt(&self, ctx: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, ctx: &mut FighterStateContext) -> Option<FighterState> {
         let ground = &self.ground_common;
-        let attributes = ctx.fighter_attribs;
+        let attributes = ctx.fighter_manifest.attributes;
 
         // A reverse dash can interrupt before IASA
         if let Some(direction) =
@@ -70,42 +70,48 @@ impl FighterStateImpl for DashState {
 
     fn on_enter(&mut self, state_context: &mut FighterStateContext) {
         *state_context.facing_direction = self.direction;
-        state_context.velocity.x =
+        state_context.velocity.x = state_context
-            state_context.fighter_attribs.dash_initial_velocity * self.direction.to_sign();
+            .fighter_manifest
+            .attributes
+            .dash_initial_velocity
+            * self.direction.to_sign();
 
-        state_context.animation_transitions.play(
+        state_context.play_animation(AnimKind::Dash, false);
-            &mut state_context.animation_player,
-            state_context.animations.clips[&AnimKind::Dash],
-            Duration::ZERO,
-        );
 
         match state_context.facing_direction {
             FighterFacingDirection::Left => {
-                state_context.input.clear_command(crate::input::FighterCommands::SmashMoveLeft);
+                state_context
-            },
+                    .input
+                    .clear_command(crate::input::FighterCommands::SmashMoveLeft);
+            }
             FighterFacingDirection::Right => {
-                state_context.input.clear_command(crate::input::FighterCommands::SmashMoveRight);
+                state_context
-            },
+                    .input
+                    .clear_command(crate::input::FighterCommands::SmashMoveRight);
+            }
         }
-
     }
 
     fn update(&mut self, state_context: &mut FighterStateContext) {
         self.frames_in_dash += 1;
 
-        if  self.frames_in_dash < state_context.fighter_attribs.dash_acceleration_duration {
+        if self.frames_in_dash
-
+            < state_context
-        }
+                .fighter_manifest
+                .attributes
+                .dash_acceleration_duration
+        {}
 
         let last_frame = state_context.input.get_last_frame();
         let (accel, target_vel) = state_context
-            .fighter_attribs
+            .fighter_manifest
+            .attributes
             .get_accel_and_target_dashrun(&last_frame, self.direction.to_sign());
         let accel = ground::compute_ground_accel(
             accel,
             target_vel,
             state_context.velocity.x,
-            state_context.fighter_attribs,
+            &state_context.fighter_manifest.attributes,
             state_context.game_settings,
         );
         state_context.velocity.x += accel;
@@ -131,7 +137,9 @@ impl FighterStateImpl for DashState {
     }
 }
 
-fn check_smash_input_with_dir(state_context: &FighterStateContext) -> Option<FighterFacingDirection> {
+fn check_smash_input_with_dir(
+    state_context: &FighterStateContext,
+) -> Option<FighterFacingDirection> {
     if state_context.input.has_command(SmashMoveLeft) {
         return Some(FighterFacingDirection::Left);
     } else if state_context.input.has_command(SmashMoveRight) {

src/fighter/state/fall.rs

@@ -10,23 +10,22 @@ pub struct FallState;
 
 impl FighterStateImpl for FallState {
     const NAME: &'static str = "Fall";
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
         jump::check_input_double_jump(state_context)
     }
 
     fn on_enter(&mut self, state_context: &mut super::FighterStateContext) {
-        state_context.animation_transitions.play(
+        state_context.play_animation(AnimKind::Fall, true);
-            &mut state_context.animation_player,
-            state_context.animations.clips[&AnimKind::Fall],
-            std::time::Duration::ZERO,
-        ).repeat();
     }
 
     fn update(&mut self, state_context: &mut super::FighterStateContext) {
-        air::integrate_gravity(state_context.velocity, state_context.fighter_attribs);
+        air::integrate_gravity(
+            state_context.velocity,
+            &state_context.fighter_manifest.attributes,
+        );
         air::apply_air_drift(
             state_context.velocity,
-            state_context.fighter_attribs,
+            &state_context.fighter_manifest.attributes,
             state_context.input,
         );
         air::apply_air_motion(

src/fighter/state/ground.rs

@@ -2,16 +2,14 @@
 //! 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::{FighterState, FighterStateContext};
+use crate::fighter::state::{FighterState, FighterStateContext, dash, turn, wait, walk};
 use crate::fighter::{
     FighterAttributes, FighterPreviousTranslation, FighterTranslation, FighterVelocity,
 };
 use crate::game_settings::GameSettings;
 use crate::math::int::FGi32;
 use crate::math::vec::FGVec2;
-use crate::stage::line::{
+use crate::stage::line::{StageLineID, StagePolyLineSegmentType};
-    StageLineID, StagePolyLineSegmentType,
-};
 
 use bevy::prelude::*;
 use fixed::traits::Fixed;
@@ -149,3 +147,20 @@ pub fn grounded_movement_common_interrupts(
 ) -> Option<FighterState> {
     super::jump::check_input(state_context, ground_common)
 }
+
+pub fn grounded_movement_standstill_common_interrupts(
+    state_context: &FighterStateContext,
+    ground_common: &GroundedStateCommon,
+) -> Option<FighterState> {
+    if let Some(state) = dash::check_input(state_context, &ground_common) {
+        Some(state)
+    } else if let Some(state) = turn::check_input(state_context, &ground_common) {
+        Some(state)
+    } else if let Some(state) = walk::check_input(state_context, &ground_common) {
+        Some(state)
+    } else if let Some(state) = wait::check_input(state_context, &ground_common) {
+        Some(state)
+    } else {
+        None
+    }
+}

src/fighter/state/jump.rs

@@ -47,10 +47,11 @@ impl JumpSquatState {
 impl FighterStateImpl for JumpSquatState {
     const NAME: &'static str = "JumpSquat";
 
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
         // Special handling for wavedash from jump squat
         if state_context.input.has_command(FighterCommands::Shield) {
             // 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()
@@ -71,7 +72,9 @@ impl FighterStateImpl for JumpSquatState {
                 duration_counter: 0,
                 direction: wavedash_dir.normalize_or_zero(),
             }))
-        } else if self.duration_counter >= state_context.fighter_attribs.jumpsquat_duration {
+        } else if self.duration_counter
+            >= state_context.fighter_manifest.attributes.jumpsquat_duration
+        {
             info!("Jump {}", state_context.input.get_last_frame().jump);
             let jump_type = if state_context.input.get_last_frame().jump {
                 JumpType::LongJump
@@ -87,16 +90,17 @@ impl FighterStateImpl for JumpSquatState {
     fn update(&mut self, state_context: &mut FighterStateContext) {
         self.duration_counter += 1;
 
-        let friction =
+        let friction = if state_context.velocity.x.abs()
-            if state_context.velocity.x.abs() > state_context.fighter_attribs.max_walk_vel {
+            > state_context.fighter_manifest.attributes.max_walk_vel
-                state_context.fighter_attribs.ground_friction
+        {
-                    * state_context
+            state_context.fighter_manifest.attributes.ground_friction
-                        .game_settings
+                * state_context
-                        .fighter_common
+                    .game_settings
-                        .ground_friction_over_walk_speed_multiplier
+                    .fighter_common
-            } else {
+                    .ground_friction_over_walk_speed_multiplier
-                state_context.fighter_attribs.ground_friction
+        } else {
-            };
+            state_context.fighter_manifest.attributes.ground_friction
+        };
 
         let ground_velocity = state_context.velocity.x;
 
@@ -123,18 +127,14 @@ impl FighterStateImpl for JumpSquatState {
     }
 
     fn on_enter(&mut self, state_context: &mut FighterStateContext) {
-        state_context.animation_transitions.play(
+        state_context.play_animation(AnimKind::JumpSquat, false);
-            state_context.animation_player,
-            state_context.animations.clips[&AnimKind::JumpSquat],
-            Duration::ZERO,
-        );
         state_context.input.clear_command(FighterCommands::Jump);
     }
 }
 
 impl FighterStateImpl for JumpState {
     const NAME: &'static str = "Jump";
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
         if state_context.input.has_command(FighterCommands::Jump) {
             Some(FighterState::Jump(JumpState {
                 jump_type: JumpType::DoubleJump,
@@ -145,10 +145,13 @@ impl FighterStateImpl for JumpState {
     }
 
     fn update(&mut self, state_context: &mut FighterStateContext) {
-        air::integrate_gravity(state_context.velocity, state_context.fighter_attribs);
+        air::integrate_gravity(
+            state_context.velocity,
+            &state_context.fighter_manifest.attributes,
+        );
         air::apply_air_drift(
             state_context.velocity,
-            state_context.fighter_attribs,
+            &state_context.fighter_manifest.attributes,
             state_context.input,
         );
         air::apply_air_motion(
@@ -168,51 +171,64 @@ impl FighterStateImpl for JumpState {
                 if movement_stick_x.is_zero()
                     || movement_stick_x.signum() == state_context.facing_direction.to_sign()
                 {
-                    state_context.animation_transitions.play(
+                    state_context.play_animation(AnimKind::JumpForward, false);
-                        state_context.animation_player,
-                        state_context.animations.clips[&AnimKind::JumpForward],
-                        Duration::ZERO,
-                    );
                 } else {
-                    state_context.animation_transitions.play(
+                    state_context.play_animation(AnimKind::JumpBack, false);
-                        state_context.animation_player,
-                        state_context.animations.clips[&AnimKind::JumpBack],
-                        Duration::ZERO,
-                    );
                 }
             }
             JumpType::DoubleJump => {
-                state_context.animation_transitions.play(
+                state_context.play_animation(AnimKind::DoubleJump, false);
-                    state_context.animation_player,
-                    state_context.animations.clips[&AnimKind::DoubleJump],
-                    Duration::ZERO,
-                );
             }
         }
 
         let vertical_vel = match self.jump_type {
-            JumpType::ShortHop => state_context.fighter_attribs.short_hop_vertical_velocity,
+            JumpType::ShortHop => {
-            JumpType::LongJump => state_context.fighter_attribs.full_jump_vertical_velocity,
+                state_context
+                    .fighter_manifest
+                    .attributes
+                    .short_hop_vertical_velocity
+            }
+            JumpType::LongJump => {
+                state_context
+                    .fighter_manifest
+                    .attributes
+                    .full_jump_vertical_velocity
+            }
             JumpType::DoubleJump => {
-                state_context.fighter_attribs.full_jump_vertical_velocity
+                state_context
-                    * state_context.fighter_attribs.air_jump_multiplier
+                    .fighter_manifest
+                    .attributes
+                    .full_jump_vertical_velocity
+                    * state_context
+                        .fighter_manifest
+                        .attributes
+                        .air_jump_multiplier
             }
         };
 
         match self.jump_type {
             JumpType::ShortHop | JumpType::LongJump => {
-                state_context.velocity.x +=
+                state_context.velocity.x += state_context
-                    state_context.fighter_attribs.jump_horizontal_velocity * movement_stick_x;
+                    .fighter_manifest
+                    .attributes
+                    .jump_horizontal_velocity
+                    * movement_stick_x;
             }
             JumpType::DoubleJump => {
-                state_context.velocity.x =
+                state_context.velocity.x = state_context
-                    state_context.fighter_attribs.air_jump_horizontal_velocity * movement_stick_x;
+                    .fighter_manifest
+                    .attributes
+                    .air_jump_horizontal_velocity
+                    * movement_stick_x;
             }
         };
 
         state_context.velocity.y = vertical_vel;
-        state_context.velocity.x +=
+        state_context.velocity.x += state_context
-            state_context.fighter_attribs.jump_horizontal_velocity * movement_stick_x;
+            .fighter_manifest
+            .attributes
+            .jump_horizontal_velocity
+            * movement_stick_x;
     }
 
     fn check_collision_interrupt(
@@ -245,13 +261,13 @@ pub fn check_input(
         .then(|| FighterState::JumpSquat(JumpSquatState::create(ground_common.clone())))
 }
 
-pub fn check_input_double_jump(
+pub fn check_input_double_jump(state_context: &FighterStateContext) -> Option<FighterState> {
-    state_context: &FighterStateContext
-) -> Option<FighterState> {
     state_context
         .input
         .has_command(FighterCommands::Jump)
-        .then(|| FighterState::Jump(JumpState{
+        .then(|| {
-            jump_type: JumpType::DoubleJump
+            FighterState::Jump(JumpState {
-        }))
+                jump_type: JumpType::DoubleJump,
+            })
+        })
 }

src/fighter/state/land.rs

@@ -3,15 +3,18 @@ use std::time::Duration;
 use bevy::prelude::*;
 
 use crate::fighter::{
-        animation::AnimKind,
+    animation::AnimKind,
-        state::{
+    state::{
-            FighterState, FighterStateContext, FighterStateImpl, dash,
+        FighterState, FighterStateContext, FighterStateImpl, dash,
-            fall::FallState,
+        fall::FallState,
-            ground::{self, GroundedMotionResult, GroundedStateCommon},
+        ground::{
-            wait::WaitState,
+            self, GroundedMotionResult, GroundedStateCommon,
-            walk,
+            grounded_movement_standstill_common_interrupts,
         },
-    };
+        wait::WaitState,
+        walk,
+    },
+};
 
 #[derive(Debug, Clone, Hash)]
 pub struct LandingState {
@@ -31,12 +34,10 @@ impl LandingState {
 impl FighterStateImpl for LandingState {
     const NAME: &'static str = "Landing";
 
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
-        if self.duration_counter >= state_context.fighter_attribs.landing_duration {
+        if state_context.is_current_animation_finished() {
-            Some(FighterState::Wait(WaitState {
+            grounded_movement_standstill_common_interrupts(state_context, &self.grounded_common)
-                grounded_common: self.grounded_common.clone(),
+        } else if self.duration_counter >= state_context.fighter_manifest.attributes.landing_iasa {
-            }))
-        } else if self.duration_counter >= state_context.fighter_attribs.landing_iasa {
             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))
@@ -49,16 +50,17 @@ impl FighterStateImpl for LandingState {
     fn update(&mut self, state_context: &mut FighterStateContext) {
         self.duration_counter += 1;
 
-        let friction =
+        let friction = if state_context.velocity.x.abs()
-            if state_context.velocity.x.abs() > state_context.fighter_attribs.max_walk_vel {
+            > state_context.fighter_manifest.attributes.max_walk_vel
-                state_context.fighter_attribs.ground_friction
+        {
-                    * state_context
+            state_context.fighter_manifest.attributes.ground_friction
-                        .game_settings
+                * state_context
-                        .fighter_common
+                    .game_settings
-                        .ground_friction_over_walk_speed_multiplier
+                    .fighter_common
-            } else {
+                    .ground_friction_over_walk_speed_multiplier
-                state_context.fighter_attribs.ground_friction
+        } else {
-            };
+            state_context.fighter_manifest.attributes.ground_friction
+        };
 
         let ground_velocity = state_context.velocity.x;
 
@@ -85,10 +87,6 @@ impl FighterStateImpl for LandingState {
     }
 
     fn on_enter(&mut self, state_context: &mut FighterStateContext) {
-        state_context.animation_transitions.play(
+        state_context.play_animation(AnimKind::Landing, false);
-            state_context.animation_player,
-            state_context.animations.clips[&AnimKind::Landing],
-            Duration::ZERO,
-        );
     }
 }

src/fighter/state/mod.rs

@@ -5,26 +5,30 @@
 use bevy::ecs::query::QueryData;
 use bevy::prelude::*;
 
-use crate::fighter::animation::FighterAnimationPlayerLink;
+use crate::fighter::animation::{AnimKind, FighterAnimationFrame, FighterAnimationPlayerLink};
+use crate::fighter::baked_animation::{BakedFighterAnimations, FixedMat4};
 use crate::fighter::ecb::FighterPreviousECB;
+use crate::fighter::manifest::FighterManifest;
 use crate::fighter::visual::FighterAnimations;
 use crate::fighter::{
-    FighterAttributes, FighterECB, FighterFacingDirection, FighterPreviousTranslation, FighterTranslation, FighterVelocity,
+    Fighter, FighterAttributes, FighterECB, FighterFacingDirection, FighterPreviousTranslation,
+    FighterTranslation, FighterVelocity,
 };
 use crate::game_settings::GameSettings;
 use crate::input::FighterInput;
 use crate::stage::line::StageCollision;
 
 pub mod air;
+pub mod air_dodge;
 pub mod dash;
 pub mod fall;
 pub mod ground;
 pub mod jump;
+pub mod land;
 pub mod run;
+pub mod turn;
 pub mod wait;
 pub mod walk;
-pub mod land;
-pub mod air_dodge;
 
 macro_rules! fighter_states {
     ($($variant:ident => $ty:ty),* $(,)?) => {
@@ -35,7 +39,7 @@ macro_rules! fighter_states {
             pub fn name(&self) -> &'static str {
                 match self { $(Self::$variant(_) => <$ty>::NAME),* }
             }
-            pub fn check_interrupt(&self, ctx: &FighterStateContext) -> Option<FighterState> {
+            pub fn check_interrupt(&self, ctx: &mut FighterStateContext) -> Option<FighterState> {
                 match self { $(Self::$variant(s) => s.check_interrupt(ctx)),* }
             }
 
@@ -59,7 +63,7 @@ macro_rules! fighter_states {
 
 pub trait FighterStateImpl: Sized {
     const NAME: &'static str;
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState>;
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState>;
 
     fn on_enter(&mut self, _state_context: &mut FighterStateContext) {}
     fn update(&mut self, _state_context: &mut FighterStateContext);
@@ -79,13 +83,49 @@ pub struct FighterStateContext<'a> {
     pub velocity: &'a mut FighterVelocity,
     pub ecb: &'a mut FighterECB,
     pub prev_ecb: &'a mut FighterPreviousECB,
-    pub fighter_attribs: &'a FighterAttributes,
     pub facing_direction: &'a mut FighterFacingDirection,
     pub game_settings: &'a GameSettings,
     pub stage_collision: &'a StageCollision,
     pub animations: &'a FighterAnimations,
     pub animation_player: &'a mut AnimationPlayer,
     pub animation_transitions: &'a mut AnimationTransitions,
+    pub animation_frame: &'a mut FighterAnimationFrame,
+    pub baked_animations: &'a Assets<BakedFighterAnimations>,
+    pub fighter_manifest: &'a FighterManifest,
+}
+
+impl FighterStateContext<'_> {
+    pub fn play_animation(&mut self, kind: AnimKind, repeat: bool) {
+        let active = self.animation_transitions.play(
+            self.animation_player,
+            self.animations.clips[&kind],
+            std::time::Duration::ZERO,
+        );
+        if repeat {
+            active.repeat();
+        }
+        self.animation_frame.reset(kind, repeat);
+    }
+
+    pub fn get_current_animation_frame(&self) -> u32 {
+        self.animation_frame.frame
+    }
+
+    pub fn is_current_animation_finished(&self) -> bool {
+        let anims_data = self
+            .baked_animations
+            .get(&self.animations.baked)
+            .expect("Animation should exist");
+        anims_data
+            .frame_count(self.animation_frame.kind)
+            .expect("Current animation should have baked frames")
+            < self.animation_frame.frame
+    }
+
+    pub fn sample_bone(&self, bone: &str) -> Option<FixedMat4> {
+        self.animations
+            .sample_bone(self.baked_animations, *self.animation_frame, bone)
+    }
 }
 
 fighter_states! {
@@ -97,7 +137,8 @@ fighter_states! {
     JumpSquat => jump::JumpSquatState,
     Jump => jump::JumpState,
     Land => land::LandingState,
-    AirDodge => air_dodge::AirDodgeState
+    AirDodge => air_dodge::AirDodgeState,
+    Turn => turn::TurnState
 }
 
 #[derive(QueryData)]
@@ -110,7 +151,8 @@ pub struct FighterFrameQuery {
     pub ecb: &'static mut FighterECB,
     pub prev_ecb: &'static mut FighterPreviousECB,
     pub facing_direction: &'static mut FighterFacingDirection,
-    pub attributes: &'static FighterAttributes,
+    pub animation_frame: &'static mut FighterAnimationFrame,
+    pub fighter: &'static Fighter,
 }
 
 impl<'w, 's> FighterFrameQueryItem<'w, 's> {
@@ -121,6 +163,8 @@ impl<'w, 's> FighterFrameQueryItem<'w, 's> {
         animations: &'a FighterAnimations,
         animation_player: &'a mut AnimationPlayer,
         animation_transitions: &'a mut AnimationTransitions,
+        baked_animations: &'a Assets<BakedFighterAnimations>,
+        manifest: &'a FighterManifest,
     ) -> FighterStateContext<'a> {
         FighterStateContext {
             translation: &mut self.translation,
@@ -130,12 +174,14 @@ impl<'w, 's> FighterFrameQueryItem<'w, 's> {
             ecb: &mut self.ecb,
             prev_ecb: &mut self.prev_ecb,
             facing_direction: &mut self.facing_direction,
-            fighter_attribs: self.attributes,
             game_settings,
             stage_collision,
             animations,
             animation_player,
             animation_transitions,
+            animation_frame: &mut self.animation_frame,
+            baked_animations,
+            fighter_manifest: manifest,
         }
     }
 }
@@ -148,6 +194,7 @@ pub struct StatefulFighterQuery {
     pub frame: FighterFrameQuery,
     pub animations: &'static FighterAnimations,
     pub animation_player_link: &'static FighterAnimationPlayerLink,
+    pub fighter: &'static Fighter,
 }
 
 #[derive(Component)]
@@ -164,6 +211,8 @@ pub fn state_update_system(
     mut animation_players: Query<(&mut AnimationPlayer, &mut AnimationTransitions)>,
     stage_collision: Res<StageCollision>,
     game_settings: Res<GameSettings>,
+    baked_animations: Res<Assets<BakedFighterAnimations>>,
+    manifests: Res<Assets<FighterManifest>>,
 ) {
     for fighter in &mut query {
         let StatefulFighterQueryItem {
@@ -178,12 +227,17 @@ pub fn state_update_system(
         else {
             continue;
         };
+
         let mut update_ctx = frame.context(
             &game_settings,
             &stage_collision,
             animations,
             &mut animation_player,
             &mut animation_transitions,
+            &baked_animations,
+            &manifests
+                .get(&(fighter.fighter.manifest))
+                .expect("Fighter manifest should be valid"),
         );
         state.update(&mut update_ctx);
     }
@@ -194,6 +248,8 @@ pub fn state_interrupt_system(
     mut animation_players: Query<(&mut AnimationPlayer, &mut AnimationTransitions)>,
     stage_collision: Res<StageCollision>,
     game_settings: Res<GameSettings>,
+    baked_animations: Res<Assets<BakedFighterAnimations>>,
+    fighter_manifests: Res<Assets<FighterManifest>>,
     mut commands: Commands,
 ) {
     for fighter in &mut query {
@@ -203,6 +259,7 @@ pub fn state_interrupt_system(
             mut frame,
             animations,
             animation_player_link,
+            fighter,
         } = fighter;
         let Ok((mut animation_player, mut animation_transitions)) =
             animation_players.get_mut(animation_player_link.player())
@@ -215,8 +272,12 @@ pub fn state_interrupt_system(
             animations,
             &mut animation_player,
             &mut animation_transitions,
+            &baked_animations,
+            fighter_manifests
+                .get(&fighter.manifest)
+                .expect("Fighter manifest should be valid"),
         );
-        if let Some(new_state) = state.check_interrupt(&state_context) {
+        if let Some(new_state) = state.check_interrupt(&mut state_context) {
             let mut new_state = new_state;
             let old_state_name = state.name();
             let new_state_name = new_state.name();
@@ -234,6 +295,8 @@ pub fn state_collision_interrupt_system(
     mut animation_players: Query<(&mut AnimationPlayer, &mut AnimationTransitions)>,
     stage_collision: Res<StageCollision>,
     game_settings: Res<GameSettings>,
+    baked_animations: Res<Assets<BakedFighterAnimations>>,
+    fighter_manifests: Res<Assets<FighterManifest>>,
     mut commands: Commands,
 ) {
     for fighter in &mut query {
@@ -243,6 +306,7 @@ pub fn state_collision_interrupt_system(
             mut frame,
             animations,
             animation_player_link,
+            fighter,
         } = fighter;
         let Ok((mut animation_player, mut animation_transitions)) =
             animation_players.get_mut(animation_player_link.player())
@@ -255,6 +319,10 @@ pub fn state_collision_interrupt_system(
             animations,
             &mut animation_player,
             &mut animation_transitions,
+            &baked_animations,
+            fighter_manifests
+                .get(&fighter.manifest)
+                .expect("Fighter manifest should be valid"),
         );
         if let Some(new_state) = state.check_collision_interrupt(&mut state_context) {
             let mut new_state = new_state;

src/fighter/state/run.rs

@@ -16,8 +16,10 @@ pub struct RunState {
 
 impl FighterStateImpl for RunState {
     const NAME: &'static str = "Run";
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
-        if let Some(state) = ground::grounded_movement_common_interrupts(state_context, &self.grounded_common) {
+        if let Some(state) =
+            ground::grounded_movement_common_interrupts(state_context, &self.grounded_common)
+        {
             return Some(state);
         }
 
@@ -33,26 +35,20 @@ impl FighterStateImpl for RunState {
     }
 
     fn on_enter(&mut self, state_context: &mut super::FighterStateContext) {
-        state_context
+        state_context.play_animation(AnimKind::Run, true);
-            .animation_transitions
-            .play(
-                &mut state_context.animation_player,
-                state_context.animations.clips[&AnimKind::Run],
-                Duration::ZERO,
-            )
-            .repeat();
     }
 
     fn update(&mut self, state_context: &mut super::FighterStateContext) {
         let last_frame = state_context.input.get_last_frame();
         let (accel, target_vel) = state_context
-            .fighter_attribs
+            .fighter_manifest
+            .attributes
             .get_accel_and_target_dashrun(&last_frame, FGi32::ONE);
         let accel = ground::compute_ground_accel(
             accel,
             target_vel,
             state_context.velocity.x,
-            state_context.fighter_attribs,
+            &state_context.fighter_manifest.attributes,
             state_context.game_settings,
         );
         state_context.velocity.x += accel;

src/fighter/state/turn.rs

@@ -0,0 +1,92 @@
+use super::{FighterStateContext, FighterStateImpl};
+use crate::fighter::animation::AnimKind;
+use crate::fighter::collision;
+use crate::fighter::state::fall::FallState;
+use crate::fighter::state::ground::{self, GroundedMotionResult, GroundedStateCommon};
+use crate::fighter::state::land::LandingState;
+use crate::fighter::state::{FighterState, air, dash, jump, wait, walk};
+
+#[derive(Debug, Clone, Hash)]
+pub struct TurnState {
+    grounded_common: GroundedStateCommon,
+}
+
+impl FighterStateImpl for TurnState {
+    const NAME: &'static str = "Turn";
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
+        // State chain that results in the turn completing
+        if let Some(state) = jump::check_input(state_context, &self.grounded_common) {
+            Some(state)
+        } else if state_context.is_current_animation_finished() {
+            if let Some(state) = dash::check_input(state_context, &self.grounded_common) {
+                Some(state)
+            } 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, &self.grounded_common) {
+                Some(state)
+            } else {
+                None
+            }
+        } else {
+            None
+        }
+    }
+
+    fn on_enter(&mut self, state_context: &mut super::FighterStateContext) {
+        state_context.play_animation(AnimKind::Turn, false);
+        *state_context.facing_direction = state_context.facing_direction.reverse();
+    }
+
+    fn update(&mut self, state_context: &mut super::FighterStateContext) {
+        let friction = if state_context.velocity.x.abs()
+            > state_context.fighter_manifest.attributes.max_walk_vel
+        {
+            state_context.fighter_manifest.attributes.ground_friction
+                * state_context
+                    .game_settings
+                    .fighter_common
+                    .ground_friction_over_walk_speed_multiplier
+        } else {
+            state_context.fighter_manifest.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 FighterStateContext,
+    ) -> Option<FighterState> {
+        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: &FighterStateContext,
+    grounded_common: &GroundedStateCommon,
+) -> Option<FighterState> {
+    let input_frame = state_context.input.get_last_frame();
+
+    if !input_frame.movement.x.is_zero()
+        && input_frame.movement.x.signum() != state_context.facing_direction.to_sign()
+    {
+        return Some(FighterState::Turn(TurnState {
+            grounded_common: grounded_common.clone(),
+        }));
+    }
+    None
+}

src/fighter/state/wait.rs

@@ -8,7 +8,7 @@ use crate::fighter::state::fall::FallState;
 use crate::fighter::state::ground::{
     GroundedMotionResult, GroundedStateCommon, grounded_movement_common_interrupts,
 };
-use crate::fighter::state::{FighterState, dash};
+use crate::fighter::state::{FighterState, dash, turn};
 
 #[derive(Debug, Clone, Hash)]
 pub struct WaitState {
@@ -17,35 +17,42 @@ pub struct WaitState {
 
 impl FighterStateImpl for WaitState {
     const NAME: &'static str = "Wait";
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
-        dash::check_input(state_context, &self.grounded_common).or_else(|| {
+        if let Some(state) = ground::grounded_movement_standstill_common_interrupts(
-            grounded_movement_common_interrupts(state_context, &self.grounded_common)
+            state_context,
-                .or_else(|| walk::check_input(state_context, &self.grounded_common))
+            &self.grounded_common,
-        })
+        ) {
+            // Prevent transitioning into myself
+            if let FighterState::Wait(_) = state {
+                None
+            } else {
+                Some(state)
+            }
+        } else if let Some(state) =
+            ground::grounded_movement_common_interrupts(state_context, &self.grounded_common)
+        {
+            Some(state)
+        } else {
+            None
+        }
     }
 
     fn on_enter(&mut self, state_context: &mut super::FighterStateContext) {
-        state_context
+        state_context.play_animation(AnimKind::Wait, true);
-            .animation_transitions
-            .play(
-                &mut state_context.animation_player,
-                state_context.animations.clips[&AnimKind::Wait],
-                Duration::ZERO,
-            )
-            .repeat();
     }
 
     fn update(&mut self, state_context: &mut super::FighterStateContext) {
-        let friction =
+        let friction = if state_context.velocity.x.abs()
-            if state_context.velocity.x.abs() > state_context.fighter_attribs.max_walk_vel {
+            > state_context.fighter_manifest.attributes.max_walk_vel
-                state_context.fighter_attribs.ground_friction
+        {
-                    * state_context
+            state_context.fighter_manifest.attributes.ground_friction
-                        .game_settings
+                * state_context
-                        .fighter_common
+                    .game_settings
-                        .ground_friction_over_walk_speed_multiplier
+                    .fighter_common
-            } else {
+                    .ground_friction_over_walk_speed_multiplier
-                state_context.fighter_attribs.ground_friction
+        } else {
-            };
+            state_context.fighter_manifest.attributes.ground_friction
+        };
 
         let ground_velocity = state_context.velocity.x;
 

src/fighter/state/walk.rs

@@ -4,9 +4,9 @@ use bevy::prelude::*;
 
 use super::{FighterStateContext, FighterStateImpl, dash, ground, wait};
 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::fighter::state::FighterState;
 
 #[derive(Debug, Clone, Hash)]
 pub struct WalkState {
@@ -15,8 +15,10 @@ pub struct WalkState {
 
 impl FighterStateImpl for WalkState {
     const NAME: &'static str = "Walk";
-    fn check_interrupt(&self, state_context: &FighterStateContext) -> Option<FighterState> {
+    fn check_interrupt(&self, state_context: &mut FighterStateContext) -> Option<FighterState> {
-        if let Some(state) = ground::grounded_movement_common_interrupts(state_context, &self.grounded_common) {
+        if let Some(state) =
+            ground::grounded_movement_common_interrupts(state_context, &self.grounded_common)
+        {
             return Some(state);
         }
         wait::check_input(state_context, &self.grounded_common)
@@ -24,27 +26,21 @@ impl FighterStateImpl for WalkState {
     }
 
     fn on_enter(&mut self, state_context: &mut FighterStateContext) {
-        state_context
+        state_context.play_animation(AnimKind::Walk, true);
-            .animation_transitions
-            .play(
-                &mut state_context.animation_player,
-                state_context.animations.clips[&AnimKind::Walk],
-                Duration::ZERO,
-            )
-            .repeat();
     }
 
     fn update(&mut self, state_context: &mut FighterStateContext) {
         let last_frame = state_context.input.get_last_frame();
         let (accel, target_vel) = state_context
-            .fighter_attribs
+            .fighter_manifest
+            .attributes
             .get_accel_and_target_walk(&last_frame);
 
         let accel = ground::compute_ground_accel(
             accel,
             target_vel,
             state_context.velocity.x,
-            state_context.fighter_attribs,
+            &state_context.fighter_manifest.attributes,
             &state_context.game_settings,
         );
 
@@ -77,7 +73,7 @@ pub fn check_input(
 ) -> 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 {
+    if !input_frame.movement.x.is_zero() {
         return Some(FighterState::Walk(WalkState {
             grounded_common: ground_state_common.clone(),
         }));

src/fighter/visual.rs

@@ -1,10 +1,34 @@
 use bevy::prelude::*;
 use std::collections::HashMap;
 
-use crate::fighter::animation::AnimKind;
+use crate::fighter::animation::{AnimKind, FighterAnimationFrame};
+use crate::fighter::baked_animation::BakedFighterAnimations;
 
 #[derive(Component, Clone)]
 pub struct FighterAnimations {
     pub graph: Handle<AnimationGraph>,
     pub clips: HashMap<AnimKind, AnimationNodeIndex>,
+    /// Gameplay samples this fixed-point asset; the graph remains visual-only.
+    pub baked: Handle<BakedFighterAnimations>,
+}
+
+impl FighterAnimations {
+    pub fn sample_bone(
+        &self,
+        baked_assets: &Assets<BakedFighterAnimations>,
+        frame: FighterAnimationFrame,
+        bone: &str,
+    ) -> Option<crate::fighter::baked_animation::FixedMat4> {
+        let baked = baked_assets.get(&self.baked)?;
+        let frame_count = baked.frame_count(frame.kind)?;
+        if frame_count == 0 {
+            return None;
+        }
+        let frame_index = if frame.repeat {
+            frame.frame % frame_count
+        } else {
+            frame.frame
+        };
+        baked.sample(frame.kind, frame_index, bone)
+    }
 }

src/lib.rs

@@ -21,7 +21,7 @@
 //! save, click Rebuild in jackdaw (or run `jd build`) and it
 //! appears in `Add Component`. No registration code is needed.
 
-use bevy::prelude::*;
+use bevy::{asset::processor::{AssetProcessor, ProcessorState}, prelude::*, tasks::block_on};
 use bevy_asset_loader::prelude::*;
 use bevy_wind_waker_shader::prelude::*;
 use clap::Parser;
@@ -46,6 +46,7 @@ pub mod stage;
 #[derive(States, Debug, Clone, Copy, Eq, PartialEq, Hash, Default)]
 pub enum AppState {
     #[default]
+    WaitForAssetProcessing,
     LoadCommonAssets,
     LoadFighterManifests,
     PrepareFighterManifests,
@@ -78,6 +79,7 @@ impl Plugin for GamePlugin {
                 GameplaySchedulePlugin,
                 input::FighterInputPlugin,
                 fighter::FighterPlugin,
+                fighter::baked_animation::BakedAnimationPlugin,
                 stage::StagePlugin,
                 MatchCameraPlugin,
                 bevy_common_assets::ron::RonAssetPlugin::<FighterManifest>::new(&["fighter.ron"]),
@@ -109,6 +111,10 @@ impl Plugin for GamePlugin {
                     .on_failure_continue_to_state(AppState::CommonAssetLoadFailed)
                     .load_collection::<stage::manifest::StageManifestAssets>(),
             )
+            .add_systems(
+                Update,
+                wait_for_asset_processor.run_if(in_state(AppState::WaitForAssetProcessing)),
+            )
             .add_systems(
                 OnEnter(AppState::PrepareFighterManifests),
                 fighter::manifest::prepare_fighter_manifests,
@@ -131,6 +137,15 @@ impl Plugin for GamePlugin {
     }
 }
 
+fn wait_for_asset_processor(
+    processor: Option<Res<AssetProcessor>>,
+    mut next_state: ResMut<NextState<AppState>>,
+) {
+    if processor.is_none_or(|processor| block_on(processor.get_state()) == ProcessorState::Finished) {
+        next_state.set(AppState::LoadCommonAssets);
+    }
+}
+
 /// Spin-rate in radians per second. Attach it in the inspector; the
 /// editor sees this component with no registration code because Bevy's
 /// `reflect_auto_register` picks up the `Reflect` derive. `Default` +

src/main.rs

@@ -2,6 +2,7 @@
 //! without the editor. The editor's Play button runs the same
 //! [`game_test::GamePlugin`] through its own game runner instead.
 
+use bevy::asset::AssetMode::Processed;
 use bevy::camera_controller::free_camera::FreeCameraPlugin;
 use bevy::image::{ImageAddressMode, ImagePlugin, ImageSamplerDescriptor};
 use bevy::prelude::*;
@@ -21,6 +22,9 @@ fn main() -> AppExit {
             address_mode_w: ImageAddressMode::Repeat,
             ..ImageSamplerDescriptor::linear()
         },
+    }).set(AssetPlugin {
+        mode: Processed,
+        ..default()
     });
 
     App::new()

src/match_loading.rs

@@ -12,6 +12,7 @@ use crate::{
     fighter::{
         FighterId,
         animation::AnimKind,
+        baked_animation::BakedFighterAnimations,
         manifest::{FighterManifest, FighterManifestRegistry},
         spawn_fighter,
         visual::FighterAnimations,
@@ -39,6 +40,7 @@ pub struct PendingMatch {
 pub struct SelectedFighterAssets {
     pub fighter: FighterId,
     pub model: Handle<Gltf>,
+    pub baked_animations: Handle<BakedFighterAnimations>,
 }
 
 #[derive(Resource)]
@@ -79,6 +81,7 @@ impl MatchAssets {
                     SelectedFighterAssets {
                         fighter: player.fighter,
                         model: asset_server.load(manifest.model_path.clone()),
+                        baked_animations: asset_server.load(manifest.baked_animation_path.clone()),
                     }
                 })
                 .collect(),
@@ -97,6 +100,7 @@ impl AssetCollection for MatchAssets {
         handles.push(assets.stage.clone().untyped());
         for character in assets.fighters {
             handles.push(character.model.untyped());
+            handles.push(character.baked_animations.untyped());
         }
         handles
     }
@@ -141,6 +145,7 @@ pub fn prepare_match(
     request: Res<PendingMatch>,
     assets: Res<MatchAssets>,
     gltfs: Res<Assets<Gltf>>,
+    baked_animations: Res<Assets<BakedFighterAnimations>>,
     registry: Res<FighterManifestRegistry>,
     stage_registry: Res<StageManifestRegistry>,
     manifests: Res<Assets<FighterManifest>>,
@@ -180,6 +185,13 @@ pub fn prepare_match(
             fail_match(&mut next_state, "a loaded character GLTF is unavailable");
             return;
         };
+        let Some(baked) = baked_animations.get(&character.baked_animations) else {
+            fail_match(
+                &mut next_state,
+                "a fighter baked animation asset is unavailable",
+            );
+            return;
+        };
         let Some(scene) = gltf.scenes.first().cloned() else {
             fail_match(&mut next_state, "a character GLTF contains no scene");
             return;
@@ -191,6 +203,8 @@ pub fn prepare_match(
                 animations.clone(),
                 manifest.attributes,
                 manifest.camera,
+                manifest,
+                manifest_handle,
             ));
             continue;
         }
@@ -210,6 +224,16 @@ pub fn prepare_match(
                 return;
             };
             clips.insert(*kind, graph.add_clip(clip.clone(), 1.0, graph.root));
+            if baked.frame_count(*kind).is_none() {
+                fail_match(
+                    &mut next_state,
+                    &format!(
+                        "{:?} baked data has no {kind:?} animation",
+                        character.fighter
+                    ),
+                );
+                return;
+            }
         }
 
         if !clips.contains_key(&AnimKind::Wait) {
@@ -220,9 +244,17 @@ pub fn prepare_match(
         let animations = FighterAnimations {
             graph: graphs.add(graph),
             clips,
+            baked: character.baked_animations.clone(),
         };
         shared_animations.insert(character.fighter, animations.clone());
-        prepared.push((scene, animations, manifest.attributes, manifest.camera));
+        prepared.push((
+            scene,
+            animations,
+            manifest.attributes,
+            manifest.camera,
+            manifest,
+            manifest_handle,
+        ));
     }
 
     let session = match create_session(&args, request.players.len()) {
@@ -238,8 +270,12 @@ pub fn prepare_match(
 
     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_handle = stage_registry
-    let stage_manifest = stage_manifests.get(&stage_handle).expect("Initialization check should ensure stage manifests are kept alive");
+        .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,
@@ -248,16 +284,18 @@ pub fn prepare_match(
         stage_manifest.camera.clone(),
     );
 
-    for (index, (player, (scene, animations, attributes, camera_profile))) in
+    for (
-        request.players.iter().zip(prepared).enumerate()
+        index,
+        (player, (scene, animations, attributes, camera_profile, manifest, manifest_handle)),
+    ) in request.players.iter().zip(prepared).enumerate()
     {
         let spawn_x = (index as i32 * 2 + 1 - request.players.len() as i32) * 5;
         spawn_fighter(
             &mut commands,
             player.handle,
             FGVec2::new(FGi32::from_num(spawn_x), FGi32::lit("12.5")),
+            (manifest_handle.clone(), manifest),
             attributes,
-            camera_profile,
             animations,
             WorldAssetRoot(scene),
         );