Make triggers be bound to airdodge on non-gamecube controllers

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

@@ -109,7 +109,6 @@ impl FighterDebugRowKind {
 enum DebugFlag {
     Network,
     Ecb,
-    BlastZones,
     StageCollision,
     AnimationBones,
     AttackHitboxes,
@@ -151,10 +150,6 @@ const FIGHTER_MENU: &[DebugMenuEntry] = &[
         label: "ECB",
         flag: DebugFlag::Ecb,
     },
-    DebugMenuEntry::Toggle {
-        label: "Blast Zones",
-        flag: DebugFlag::BlastZones,
-    },
     DebugMenuEntry::Toggle {
         label: "Animation bones",
         flag: DebugFlag::AnimationBones,
@@ -248,7 +243,6 @@ pub struct DebugSettings {
     pub frame_stepping: bool,
     pub network: bool,
     pub ecb: bool,
-    pub blast_zones: bool,
     pub stage_collision: bool,
     pub animation_bones: bool,
     pub attack_hitboxes: bool,
@@ -270,7 +264,6 @@ impl Default for DebugSettings {
             frame_stepping: false,
             network: false,
             ecb: false,
-            blast_zones: false,
             stage_collision: false,
             animation_bones: false,
             attack_hitboxes: false,
@@ -335,7 +328,6 @@ impl DebugSettings {
         match flag {
             DebugFlag::Network => self.network,
             DebugFlag::Ecb => self.ecb,
-            DebugFlag::BlastZones => self.blast_zones,
             DebugFlag::StageCollision => self.stage_collision,
             DebugFlag::AnimationBones => self.animation_bones,
             DebugFlag::AttackHitboxes => self.attack_hitboxes,
@@ -350,7 +342,6 @@ 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::AnimationBones => self.animation_bones = !self.animation_bones,
             DebugFlag::AttackHitboxes => self.attack_hitboxes = !self.attack_hitboxes,
@@ -893,10 +884,6 @@ 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 animation_bones_enabled(settings: Res<DebugSettings>) -> bool {
     settings.animation_bones
 }

src/fighter/collision.rs

@@ -4,7 +4,7 @@ use crate::fighter::ecb::FighterPreviousECB;
 use crate::fighter::{FighterECB, FighterPreviousTranslation, FighterTranslation};
 use crate::math::segment::FGSegment2d;
 use crate::math::vec::FGVec2;
-use crate::stage::line::{StageCollision, StageLineID, StagePolyType};
+use crate::stage::line::{StageCollision, StageLineID};
 /*
 pub fn collide_fighter_with_scene(
     fighters: Query<(&FighterECB, &mut FighterVelocity, &mut FighterTranslation)>,
@@ -45,7 +45,6 @@ pub fn air_collide_with_stage(
     ecb: &FighterECB,
     stage_collision: &StageCollision,
     ignored_polys: &[usize],
-    ignore_soft_platforms: bool,
 ) -> Option<AirCollisionWithStageResult> {
     let ray_segment = FGSegment2d::new(
         prev_translation.0 + prev_ecb.get_bottom_point(),
@@ -56,10 +55,7 @@ pub fn air_collide_with_stage(
         .stage_polys
         .iter()
         .enumerate()
-        .filter(|(poly_idx, poly)| {
+        .filter(|(poly_idx, _)| !ignored_polys.contains(poly_idx))
-            !ignored_polys.contains(poly_idx)
-                && !(ignore_soft_platforms && matches!(poly.poly_type, StagePolyType::Platform))
-        })
         .filter_map(|(poly_idx, poly)| {
             poly.intersect_ray(ray_segment).map(|intersect_result| {
                 (
@@ -99,18 +95,6 @@ mod tests {
         )
     }
 
-    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 {
@@ -138,78 +122,10 @@ mod tests {
             &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")],
-        };
-        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());
-    }
-
-    #[test]
-    fn airborne_collision_still_hits_solid_floors_while_passing_down() {
-        let stage_collision = StageCollision {
-            stage_polys: vec![solid_floor()],
-        };
-        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"));
-    }
 }

src/fighter/debug.rs

@@ -1,9 +1,10 @@
 //! Fighter debug views: gizmos and the egui inspector window.
 
+use std::sync::OnceLock;
 
-use bevy::color::palettes::css::{ORANGE, ORANGE_RED, WHITE};
+use bevy::color::palettes::css::ORANGE;
-use bevy::prelude::*;
+use bevy::{color::palettes::css::YELLOW, prelude::*};
-use bevy_egui::{egui, EguiContexts};
+use bevy_egui::{EguiContexts, egui};
 
 use crate::debug_tools::{DebugSettings, FighterDebugRowKind};
 use crate::fighter::animation::FighterAnimationFrame;
@@ -14,14 +15,14 @@ use crate::fighter::attack::{
 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;
@@ -37,7 +38,6 @@ pub fn debug_draw_ecb(
         &FighterPreviousTranslation,
     )>,
     mut gizmos: Gizmos,
-    mut filled_gizmos: FilledGizmos,
 ) {
     for (ecb, trf, ecb_prev, trf_prev) in ecbs {
         gizmos.cross(
@@ -46,18 +46,15 @@ pub fn debug_draw_ecb(
             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, YELLOW);
-        gizmos.lineloop(transformed, WHITE);
+        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(
@@ -186,23 +183,15 @@ pub fn animation_debug(
     }
 }
 
-pub fn hurtbox_debug(
+pub fn hurtbox_debug(query: Query<&FighterSolvedHurtboxes>, mut gizmos: Gizmos) {
-    query: Query<&FighterSolvedHurtboxes>,
-    mut filled_gizmos: FilledGizmos,
-) {
     for hurtboxes in &query {
         for hurtbox in &hurtboxes.0 {
-            filled_gizmos.affine_capsule(
+            draw_affine_capsule(&mut gizmos, hurtbox.capsule, YELLOW);
-                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),
-            );
         }
     }
 }
 
-/*fn draw_affine_capsule(
+fn draw_affine_capsule(
     gizmos: &mut Gizmos,
     capsule: FixedAffineCapsule,
     color: impl Into<Color> + Copy,
@@ -224,9 +213,9 @@ pub fn hurtbox_debug(
     for &(start, end) in &wireframe.lines {
         gizmos.line(vertices[start], vertices[end], color);
     }
-}*/
+}
 
-/*struct CapsuleWireVertex {
+struct CapsuleWireVertex {
     direction: Vec3,
     center_sign: f32,
 }
@@ -234,9 +223,9 @@ pub fn hurtbox_debug(
 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();
@@ -317,7 +306,7 @@ struct CapsuleWireframe {
 
         CapsuleWireframe { vertices, lines }
     })
-}*/
+}
 
 #[cfg(test)]
 mod capsule_debug_tests {
@@ -337,7 +326,7 @@ 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
@@ -355,7 +344,7 @@ 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(
@@ -367,7 +356,6 @@ pub fn attack_debug(
         &FighterAnimationFrame,
     )>,
     mut gizmos: Gizmos,
-    mut filled_gizmos: FilledGizmos,
 ) {
     for (hitboxes, _matrices, _translation, _facing_direction, _frame) in query {
         if let Some(active_attack) = &hitboxes.0 {
@@ -394,12 +382,6 @@ pub fn attack_debug(
                     capsule_draw_trf.to_isometry(),
                     bevy::color::palettes::css::RED,
                 );
-                filled_gizmos.capsule(
-                    capsule_draw_trf.to_isometry(),
-                    solved_hitbox.capsule.radius.to_num(),
-                    length * 0.5,
-                    Color::srgba(1.0, 0.0, 0.0, 0.18),
-                );
 
                 gizmos.cross(start, 1.0, bevy::color::palettes::css::GREEN);
                 gizmos.cross(end, 1.0, bevy::color::palettes::css::GREEN);

src/fighter/mod.rs

@@ -29,8 +29,7 @@ pub use attributes::FighterAttributes;
 pub use ecb::FighterECB;
 pub use manifest::FighterId;
 pub use motion::{
-    FighterPresentationSnap, FighterPreviousFacingDirection, FighterPreviousTranslation,
+    FighterPreviousFacingDirection, FighterPreviousTranslation, FighterTranslation, FighterVelocity,
-    FighterTranslation, FighterVelocity,
 };
 pub use surface::FighterSurfaceState;
 
@@ -148,10 +147,6 @@ 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,
                 (
@@ -207,8 +202,6 @@ 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>()
@@ -311,7 +304,6 @@ pub fn spawn_fighter(
                 FighterVelocity::default(),
                 FighterTranslation(spawn_position),
                 FighterPreviousTranslation(spawn_position),
-                FighterPresentationSnap::default(),
             ),
             visual_root,
             animations,

src/fighter/motion.rs

@@ -21,11 +21,6 @@ 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);
@@ -57,31 +52,10 @@ 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,
         &mut Transform,
     )>,
@@ -90,13 +64,12 @@ pub fn apply_fighter_translation_to_visuals(
     game_settings: Res<GameSettings>,
 ) {
     let overstep_fraction = timing.overstep_fraction();
-    for (translation, previous_translation, presentation_snap, hitstop_shake, mut transform) in query {
+    for (translation, previous_translation, hitstop_shake, mut transform) in query {
-        let translation = sample_presentation_translation_with_snap(
+        let translation = sample_presentation_translation(
             *previous_translation,
             *translation,
             overstep_fraction,
             debug_settings.motion_sampling,
-            *presentation_snap,
         );
         transform.translation = Vec3::new(
             translation.x,
@@ -196,19 +169,6 @@ 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/state/air.rs

@@ -123,7 +123,6 @@ pub fn collision_interrupt(
     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);
     Some(FighterState::Land(LandingState::create(landing_type)))
 }

src/fighter/state/ground.rs

@@ -248,7 +248,6 @@ mod tests {
     use crate::fighter::ecb::FighterPreviousECB;
     use crate::fighter::{FighterECB, FighterSurfaceState};
     use crate::stage::line::StagePolyType;
-    use crate::input::FighterInput;
 
     fn two_segment_floor() -> StagePoly {
         StagePoly::build(
@@ -376,19 +375,15 @@ mod tests {
             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,
             prev_ecb: &previous_ecb,
             stage_collision: &stage_collision,
             leave_ground_ecb_lock_duration: 10,
-            presentation_snap: &mut presentation_snap,
-            downward_stick_threshold: FGi32::ONE,
         };
 
         assert!(matches!(
@@ -431,19 +426,15 @@ mod tests {
             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,
             prev_ecb: &previous_ecb,
             stage_collision: &stage_collision,
             leave_ground_ecb_lock_duration: 10,
-            presentation_snap: &mut presentation_snap,
-            downward_stick_threshold: FGi32::ONE,
         };
 
         assert!(matches!(

src/fighter/state/mod.rs

@@ -20,7 +20,6 @@ use crate::fighter::{
     Fighter, FighterECB, FighterFacingDirection, FighterHitboxes, FighterHitstop,
     FighterHitstopShake, FighterHitstopShakeKind, FighterHitstopShakeRole,
     FighterPreviousTranslation, FighterSurfaceState, FighterTranslation, FighterVelocity,
-    FighterPresentationSnap,
 };
 use crate::fighter::surface::EcbLockPolicy;
 use crate::game_settings::GameSettings;
@@ -194,15 +193,12 @@ 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 prev_ecb: &'a FighterPreviousECB,
     pub stage_collision: &'a StageCollision,
     pub leave_ground_ecb_lock_duration: u32,
-    pub presentation_snap: &'a mut FighterPresentationSnap,
-    pub downward_stick_threshold: FGi32,
 }
 
 impl CollisionContext<'_> {
@@ -210,8 +206,6 @@ impl CollisionContext<'_> {
         &self,
     ) -> Option<crate::fighter::collision::AirCollisionWithStageResult> {
         let ignored_polys = self.surface.ignored_polygon_ids();
-        let 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,
@@ -219,7 +213,6 @@ impl CollisionContext<'_> {
             self.ecb,
             self.stage_collision,
             &ignored_polys,
-            ignore_soft_platforms,
         )
     }
 }
@@ -246,7 +239,6 @@ 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,
@@ -357,15 +349,12 @@ impl<'w, 's> FighterFrameQueryItem<'w, 's> {
         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,
             prev_ecb: &self.prev_ecb,
             stage_collision,
-            leave_ground_ecb_lock_duration: game_settings.fighter_common.leave_ground_ecb_frame_lock_duration,
+            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,
         }
     }
 }

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/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::*,
@@ -44,7 +42,6 @@ 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;
 pub mod match_loading;
@@ -117,7 +114,6 @@ impl Plugin for GamePlugin {
                 input::FighterInputPlugin,
                 replay::ReplayPlugin,
                 debug_tools::DebugToolsPlugin,
-                filled_gizmos::FilledGizmosPlugin,
                 fighter::FighterPlugin,
                 fighter::baked_animation::BakedAnimationPlugin,
                 scripting::importer::FighterScriptImportPlugin,

src/match_loading.rs

@@ -21,6 +21,7 @@ use crate::{
     },
     input::{LocalInputAssignments, LocalInputSource},
     match_runtime::MatchState,
+    math::{int::FGi32, vec::FGVec2},
     netcode::{
         GGRSCfg,
         session::{ConnectionStatus, SessionConfig, create_session},
@@ -276,7 +277,7 @@ pub fn prepare_match(
     if !valid_player_handles(&config.players) {
         fail_match(
             &mut next_state,
-            "player handles must be unique and non-empty",
+            "player handles must be unique and cover 0..player_count",
         );
         return;
     }
@@ -286,20 +287,6 @@ pub fn prepare_match(
         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() {
         fail_match(
             &mut next_state,
@@ -462,8 +449,7 @@ pub fn prepare_match(
         ));
     }
 
-    let session_player_count = player_count_for_handles(&config.players);
+    let session_config = match SessionConfig::from_args(&args, config.players.len()) {
-    let session_config = match SessionConfig::from_args(&args, session_player_count) {
         Ok(config) => config,
         Err(error) => {
             fail_match(
@@ -473,7 +459,7 @@ pub fn prepare_match(
             return;
         }
     };
-    let session = match create_session(&args, session_player_count) {
+    let session = match create_session(&args, config.players.len()) {
         Ok(session) => session,
         Err(error) => {
             fail_match(
@@ -486,6 +472,12 @@ pub fn prepare_match(
 
     let root = commands.spawn((Name::new("Match"), MatchRoot)).id();
 
+    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");
     stage::spawn_stage(
         &mut commands,
         root,
@@ -495,15 +487,14 @@ pub fn prepare_match(
     );
 
     let mut fighter_roster = Vec::with_capacity(config.players.len());
-
+    for (index, (player, (scene, animations, attack_scripts, manifest_handle, model_scale, ecb_bone_indices))) in
-    for (spawn_index, (player, (scene, animations, attack_scripts, manifest_handle, model_scale, ecb_bone_indices))) in
         config.players.iter().zip(prepared).enumerate()
     {
-        let spawn_point = spawn_positions[spawn_index];
+        let spawn_x = (index as i32 * 2 + 1 - config.players.len() as i32) * 5;
         fighter_roster.push(spawn_fighter(
             &mut commands,
             player.handle,
-            spawn_point,
+            FGVec2::new(FGi32::from_num(spawn_x), FGi32::lit("12.5")),
             manifest_handle.clone(),
             model_scale,
             animations,
@@ -527,22 +518,12 @@ fn fail_match(next_state: &mut NextState<AppState>, message: &str) {
 }
 
 fn valid_player_handles(players: &[MatchPlayer]) -> bool {
-    if players.is_empty() {
+    let mut handles = players
-        return false;
-    }
-
-    let mut handles = players.iter().map(|player| player.handle).collect::<Vec<_>>();
-    handles.sort_unstable();
-    handles.windows(2).all(|handles| handles[0] != handles[1])
-        && handles.last().is_none_or(|handle| *handle != usize::MAX)
-}
-
-fn player_count_for_handles(players: &[MatchPlayer]) -> usize {
-    players
         .iter()
         .map(|player| player.handle)
-        .max()
+        .collect::<Vec<_>>();
-        .map_or(0, |handle| handle + 1)
+    handles.sort_unstable();
+    handles == (0..players.len()).collect::<Vec<_>>()
 }
 
 pub fn cleanup_match(
@@ -609,23 +590,6 @@ mod tests {
         assert!(!valid_player_handles(&players));
     }
 
-    #[test]
-    fn player_handles_may_have_gaps() {
-        let players = [
-            MatchPlayer {
-                handle: 0,
-                fighter: FighterId::TestFighter,
-            },
-            MatchPlayer {
-                handle: 2,
-                fighter: FighterId::TestFighter,
-            },
-        ];
-
-        assert!(valid_player_handles(&players));
-        assert_eq!(player_count_for_handles(&players), 3);
-    }
-
     #[test]
     fn match_rules_reject_zero_limits() {
         assert!(

src/match_runtime.rs

@@ -1,14 +1,9 @@
 //! Rollback-simulated state for an active match.
 
-use bevy::input::InputSystems;
 use bevy::prelude::*;
-use bevy_ggrs::{RunGgrsSystems, prelude::*};
+use bevy_ggrs::prelude::*;
 
-use crate::{
+use crate::match_loading::{MatchConfig, MatchRules};
-    AppState,
-    match_loading::{MatchConfig, MatchRules},
-    netcode::session::SessionConfig,
-};
 
 #[derive(Resource, Clone, Debug, Hash, PartialEq, Eq)]
 pub struct MatchState {
@@ -24,11 +19,6 @@ pub struct PlayerMatchState {
     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 {
@@ -40,12 +30,7 @@ impl MatchState {
 
         Self {
             elapsed_frames: 0,
-            players: (0..config
+            players: (0..config.players.len())
-                .players
-                .iter()
-                .map(|player| player.handle)
-                .max()
-                .map_or(0, |handle| handle + 1))
                 .map(|_| PlayerMatchState {
                     stocks_remaining,
                     score: 0,
@@ -61,56 +46,10 @@ pub struct MatchRuntimePlugin;
 impl Plugin for MatchRuntimePlugin {
     fn build(&self, app: &mut App) {
         app.rollback_resource_with_clone::<MatchState>()
-            .checksum_resource_with_hash::<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(
-                PreUpdate,
-                toggle_pause
-                    .after(InputSystems)
-                    .before(RunGgrsSystems)
-                    .run_if(in_state(AppState::InMatch)),
-            );
     }
 }
 
-pub fn ggrs_should_run(pause: Option<Res<PauseState>>) -> bool {
-    !pause.is_some_and(|pause| pause.paused)
-}
-
-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();
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;

src/menus/input.rs

@@ -226,7 +226,7 @@ fn gamepad_input(
                 input.accept.accumulate(&status);
             }
             MenuInputMapAction::Start => {
-                input.start.accumulate(&status);
+                input.accept.accumulate(&status);
             }
         }
     }

src/netcode/session.rs

@@ -42,15 +42,6 @@ pub enum SessionConfigError {
 }
 
 impl SessionConfig {
-    /// Returns whether this match has more than one remote participant.
-    pub fn is_multiplayer(&self) -> bool {
-        self.players.len() > 1
-            || self
-                .players
-                .iter()
-                .any(|player| matches!(player, PlayerConnection::Remote(_)))
-    }
-
     pub fn from_args(args: &Args, player_count: usize) -> Result<Self, SessionConfigError> {
         if player_count == 0 {
             return Err(SessionConfigError::NoPlayers);
@@ -205,13 +196,6 @@ mod tests {
             config.players,
             [PlayerConnection::Local, PlayerConnection::Local]
         );
-        assert!(config.is_multiplayer());
-    }
-
-    #[test]
-    fn single_local_player_is_not_multiplayer() {
-        let config = SessionConfig::from_args(&args(&["game", "--players", "1"]), 1).unwrap();
-        assert!(!config.is_multiplayer());
     }
 
     #[test]
@@ -223,7 +207,6 @@ mod tests {
         .unwrap();
         assert!(matches!(config.players[0], PlayerConnection::Local));
         assert!(matches!(config.players[1], PlayerConnection::Remote(_)));
-        assert!(config.is_multiplayer());
     }
 
     #[test]

src/replay.rs

@@ -140,7 +140,7 @@ fn validate(replay: &Replay) -> Result<(), String> {
         ));
     }
     if replay.players_are_invalid() {
-        return Err("replay player handles must be unique".into());
+        return Err("replay player handles must cover 0..player_count".into());
     }
     if replay.frames.is_empty() {
         return Err("replay must contain at least one frame".into());
@@ -169,16 +169,7 @@ fn validate(replay: &Replay) -> Result<(), String> {
     if replay
         .frames
         .iter()
-        .any(|frame| {
+        .any(|frame| frame.inputs.len() != replay.match_config.players.len())
-            frame.inputs.len()
-                != replay
-                    .match_config
-                    .players
-                    .iter()
-                    .map(|player| player.handle)
-                    .max()
-                    .map_or(0, |handle| handle + 1)
-        })
     {
         return Err("replay frame input count does not match player count".into());
     }
@@ -194,9 +185,7 @@ impl Replay {
             .map(|player| player.handle)
             .collect();
         handles.sort_unstable();
-        handles.is_empty()
+        handles != (0..handles.len()).collect::<Vec<_>>()
-            || handles.windows(2).any(|handles| handles[0] == handles[1])
-            || handles.last() == Some(&usize::MAX)
     }
 
     fn frame(&self, frame: i32) -> Option<&ReplayFrame> {

src/stage/debug.rs

@@ -1,12 +1,6 @@
 use bevy::{color::palettes::css::RED, prelude::*};
 
-use crate::{
+use crate::stage::line::StageCollision;
-    match_loading::MatchConfig,
-    stage::{
-        line::StageCollision,
-        manifest::{StageManifest, StageManifestRegistry},
-    },
-};
 
 pub fn debug_draw_scene(mut gizmos: Gizmos, stage_collision: Res<StageCollision>) {
     for poly in stage_collision.stage_polys.iter() {
@@ -22,25 +16,3 @@ pub fn debug_draw_scene(mut gizmos: Gizmos, stage_collision: Res<StageCollision>
         }
     }
 }
-
-pub fn debug_draw_blast_zones(
-    mut gizmos: Gizmos,
-    stage_registry: Res<StageManifestRegistry>,
-    stage_manifests: Res<Assets<StageManifest>>,
-    match_config: Res<MatchConfig>,
-) {
-    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;
-    };
-
-    let top_left = stage_manifest.blast_zone_top_left.to_vec2();
-    let bottom_right = stage_manifest.blast_zone_bottom_right.to_vec2();
-    let center = (top_left + bottom_right) / 2.0;
-    let size = (bottom_right - top_left).abs();
-
-    gizmos.rect(Vec3::new(center.x, center.y, 0.0), size, bevy::color::palettes::css::BLUE);
-}

src/stage/manifest.rs

@@ -1,4 +1,4 @@
-use std::collections::{HashMap, HashSet};
+use std::collections::HashMap;
 
 use bevy_asset_loader::asset_collection::AssetCollection;
 use ron_asset_manager::prelude::RonAsset;
@@ -7,10 +7,14 @@ use strum::IntoEnumIterator;
 use strum_macros::EnumIter;
 
 use crate::{
-    AppState, game_settings::GameSettings, math::{vec::FGVec2}, stage::{
+    AppState,
+    game_settings::GameSettings,
+    math::vec::FGVec2,
+    stage::{
         StagePoly,
         line::{StageCollision, StagePolyLineSegmentType, StagePolyType},
-    }, texture_reference::TextureReference,
+    },
+    texture_reference::TextureReference,
 };
 use bevy::prelude::*;
 
@@ -83,15 +87,6 @@ pub struct StageManifest {
     pub icon: TextureReference,
     pub camera: StageCameraProfile,
     pub polygons: Vec<StagePolyDefinition>,
-
-    #[reflect(ignore)]
-    pub blast_zone_top_left: FGVec2,
-    #[reflect(ignore)]
-    pub blast_zone_bottom_right: FGVec2,
-
-    #[reflect(ignore)]
-    pub spawn_points: Vec<FGVec2>,
-    pub neutral_spawn_point_sets: Vec<Vec<usize>>
 }
 
 #[derive(Resource)]
@@ -167,13 +162,6 @@ pub fn prepare_stage_manifests(
             );
             return;
         }
-        if let Err(error) = manifest.validate_spawn_points() {
-            fail(
-                &mut next_state,
-                &format!("{:?} has invalid spawn points: {error}", manifest.id),
-            );
-            return;
-        }
         if registry.insert(manifest.id, handle.clone()).is_some() {
             fail(
                 &mut next_state,
@@ -198,69 +186,6 @@ pub fn prepare_stage_manifests(
 }
 
 impl StageManifest {
-    pub fn neutral_spawn_positions(&self, player_count: usize) -> Result<Vec<FGVec2>, String> {
-        if player_count == 0 {
-            return Err("a match must contain at least one player".to_owned());
-        }
-
-        let layout = self
-            .neutral_spawn_point_sets
-            .get(player_count - 1)
-            .ok_or_else(|| format!("no spawn layout for {player_count} players"))?;
-
-        if layout.len() != player_count {
-            return Err(format!(
-                "the {player_count}-player layout contains {} positions",
-                layout.len()
-            ));
-        }
-
-        layout
-            .iter()
-            .map(|&index| {
-                self.spawn_points.get(index).copied().ok_or_else(|| {
-                    format!("the {player_count}-player layout references spawn point {index}")
-                })
-            })
-            .collect()
-    }
-
-    fn validate_spawn_points(&self) -> Result<(), String> {
-        if self.spawn_points.is_empty() {
-            return Err("no spawn points are configured".to_owned());
-        }
-
-        if self.neutral_spawn_point_sets.is_empty() {
-            return Err("no neutral spawn layouts are configured".to_owned());
-        }
-
-        for (layout_index, layout) in self.neutral_spawn_point_sets.iter().enumerate() {
-            let player_count = layout_index + 1;
-            if layout.len() != player_count {
-                return Err(format!(
-                    "the {player_count}-player layout contains {} positions",
-                    layout.len()
-                ));
-            }
-
-            let mut unique_indices = HashSet::with_capacity(layout.len());
-            for &spawn_point_index in layout {
-                if spawn_point_index >= self.spawn_points.len() {
-                    return Err(format!(
-                        "the {player_count}-player layout references spawn point {spawn_point_index}"
-                    ));
-                }
-                if !unique_indices.insert(spawn_point_index) {
-                    return Err(format!(
-                        "the {player_count}-player layout uses spawn point {spawn_point_index} more than once"
-                    ));
-                }
-            }
-        }
-
-        Ok(())
-    }
-
     pub fn to_collision(&self) -> StageCollision {
         let stage_polys: Vec<StagePoly> = self
             .polygons

src/stage/mod.rs

@@ -10,7 +10,7 @@ pub mod scene;
 
 pub use line::{StagePlaneIntersectResult, StagePoly};
 
-use crate::{match_loading::MatchConfig, stage::{line::StageCollision, manifest::StageCameraProfile}};
+use crate::stage::{line::StageCollision, manifest::StageCameraProfile};
 
 /// Owns the stage geometry: which scene gets spawned and how it is drawn.
 #[derive(Default)]
@@ -20,14 +20,9 @@ impl Plugin for StagePlugin {
     fn build(&self, app: &mut App) {
         app.add_systems(
             Update,
-            (
+            debug::debug_draw_scene
-                (debug::debug_draw_scene
                 .run_if(resource_exists::<line::StageCollision>)
-                    .run_if(crate::debug_tools::stage_collision_enabled)),
+                .run_if(crate::debug_tools::stage_collision_enabled),
-                (debug::debug_draw_blast_zones
-                    .run_if(resource_exists::<MatchConfig>)
-                    .run_if(crate::debug_tools::blast_zones_enabled),),
-            ),
         );
     }
 }

src/ui/mod.rs

@@ -3,7 +3,7 @@ use bevy::prelude::*;
 use crate::{
     AppState,
     match_loading::{MatchConfig, MatchRules},
-    match_runtime::{MatchState, PauseState},
+    match_runtime::MatchState,
 };
 
 pub mod battle_ui;
@@ -11,9 +11,6 @@ pub mod errors;
 pub mod fighter_info;
 pub mod stock_icon;
 
-#[derive(Component)]
-pub struct PauseOverlay;
-
 #[derive(Default)]
 pub struct InGameUIPlugin;
 
@@ -35,54 +32,6 @@ impl Plugin for InGameUIPlugin {
                             }
                         }),
                 ),
-            )
+            );
-            .add_systems(Update, sync_pause_overlay);
-    }
-}
-
-pub fn sync_pause_overlay(
-    pause: Res<PauseState>,
-    overlay: Query<Entity, With<PauseOverlay>>,
-    mut commands: Commands,
-) {
-    if !pause.is_changed() {
-        return;
-    }
-
-    if pause.paused {
-        if overlay.is_empty() {
-            commands.spawn((
-                PauseOverlay,
-                Node {
-                    position_type: PositionType::Absolute,
-                    left: px(0),
-                    right: px(0),
-                    top: px(0),
-                    bottom: px(0),
-                    align_items: AlignItems::Center,
-                    justify_content: JustifyContent::Center,
-                    flex_direction: FlexDirection::Column,
-                    ..default()
-                },
-                BackgroundColor(Color::srgba(0.0, 0.0, 0.0, 0.7)),
-                ZIndex(100),
-                children![
-                    (
-                        Text::new("Paused"),
-                        TextFont::from_font_size(crate::menus::style::H1_SIZE as f32),
-                        TextColor(Color::WHITE),
-                    ),
-                    (
-                        Text::new("Press Esc or Start to resume"),
-                        TextFont::from_font_size(crate::menus::style::TEXT_SIZE as f32),
-                        TextColor(Color::WHITE),
-                    ),
-                ],
-            ));
-        }
-    } else {
-        for entity in &overlay {
-            commands.entity(entity).despawn();
-        }
     }
 }