Add animation baking system

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)
+    }
 }