fix fly motion

atmosphere/src/App.jsx

@@ -3,7 +3,7 @@ import { Canvas, useFrame, useLoader, useThree } from '@react-three/fiber';
 import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader';
 import { VRMLoaderPlugin, VRMUtils } from '@pixiv/three-vrm';
 import { createVRMAnimationClip, VRMAnimationLoaderPlugin } from '@pixiv/three-vrm-animation';
-import { AnimationMixer, Vector3, MathUtils } from 'three';
+import { AnimationMixer, Vector3, MathUtils, Quaternion, Euler } from 'three';
 import { OrbitControls, PerspectiveCamera } from '@react-three/drei';
 import { EffectComposer, ToneMapping } from '@react-three/postprocessing';
 import { ToneMappingMode } from 'postprocessing';
@@ -59,6 +59,43 @@ const WEATHER_PRESETS = [
   }
 ];
 
+// --- Shared State for Synchronization ---
+// 複数のCanvas間で状態を共有するための簡易ストア
+const worldState = {
+  // 世界座標 (Atmosphere内での位置)
+  position: new Vector3(0, EARTH_RADIUS + 2000, 0),
+  // カメラの回転 (AvatarLayerのカメラ回転をAtmosphereに同期)
+  quaternion: new Quaternion(),
+  // 移動速度 (m/s)
+  speed: 5000.0,
+};
+
+// キー入力管理
+const keys = {
+  w: false,
+  a: false,
+  s: false,
+  d: false,
+  Shift: false,
+  Space: false,
+};
+
+// キーイベントリスナーの設定
+if (typeof window !== 'undefined') {
+  window.addEventListener('keydown', (e) => {
+    const key = e.key.toLowerCase();
+    if (keys.hasOwnProperty(key)) keys[key] = true;
+    if (e.key === 'Shift') keys.Shift = true;
+    if (e.key === ' ') keys.Space = true;
+  });
+  window.addEventListener('keyup', (e) => {
+    const key = e.key.toLowerCase();
+    if (keys.hasOwnProperty(key)) keys[key] = false;
+    if (e.key === 'Shift') keys.Shift = false;
+    if (e.key === ' ') keys.Space = false;
+  });
+}
+
 // ---------------------------------------------------------
 // Scene Components (Inside Canvas)
 // ---------------------------------------------------------
@@ -121,13 +158,14 @@ function AtmosphereScene() {
 
   return (
     <>
+      {/* Camera is controlled by FollowCamera component */}
       <PerspectiveCamera
         makeDefault
-        position={[0, EARTH_RADIUS + 2000, 0]} 
         near={1}
         far={10000000}
         fov={45}
       />
+      <FollowCamera />
 
       <directionalLight
         ref={sunRef}
@@ -154,28 +192,16 @@ function AtmosphereScene() {
           <ToneMapping mode={ToneMappingMode.AGX} />
         </EffectComposer>
       </Atmosphere>
-      
-      <FlyOverCamera />
     </>
   );
 }
 
-function FlyOverCamera() {
+// Atmosphere側のカメラをShared Stateに同期させる
+function FollowCamera() {
   useFrame((state) => {
-    const t = state.clock.getElapsedTime() * 0.05;
+    // Shared Stateの位置と回転を適用
-    const altitude = 2000;
+    state.camera.position.copy(worldState.position);
-    const radius = 5000;
+    state.camera.quaternion.copy(worldState.quaternion);
-
-    state.camera.position.x = Math.sin(t) * radius;
-    state.camera.position.z = Math.cos(t) * radius;
-    state.camera.position.y = EARTH_RADIUS + altitude;
-    
-    const lookAtTarget = new Vector3(
-      Math.sin(t + 0.1) * radius,
-      EARTH_RADIUS + altitude, 
-      Math.cos(t + 0.1) * radius
-    );
-    state.camera.lookAt(lookAtTarget);
   });
   return null;
 }
@@ -186,12 +212,20 @@ function FlyOverCamera() {
 function VrmCharacter() {
   const mixerRef = useRef(null);
   const vrmRef = useRef(null);
+  const { camera } = useThree();
+  const actionsRef = useRef({});
+  const currentActionRef = useRef(null);
 
   const gltf = useLoader(GLTFLoader, VRM_URL, (loader) => {
     loader.register((parser) => new VRMLoaderPlugin(parser));
   });
 
-  const vrma = useLoader(GLTFLoader, VRMA_URL, (loader) => {
+  // Load all animations
+  const [vrmaFly, vrmaFlyStop, vrmaFlyIdle] = useLoader(GLTFLoader, [
+    `${BASE_URL}fly.vrma`,
+    `${BASE_URL}fly_stop.vrma`,
+    `${BASE_URL}fly_idle.vrma`
+  ], (loader) => {
     loader.register((parser) => new VRMAnimationLoaderPlugin(parser));
   });
 
@@ -202,25 +236,185 @@ function VrmCharacter() {
     vrm.humanoid.resetPose();
     vrm.scene.rotation.y = Math.PI;
 
+    // Setup Animation Mixer
+    const mixer = new AnimationMixer(vrm.scene);
+    mixerRef.current = mixer;
+
+    // Helper to create action
+    const createAction = (vrma, name) => {
       if (vrma.userData.vrmAnimations?.[0]) {
         const clip = createVRMAnimationClip(vrma.userData.vrmAnimations[0], vrm);
-      mixerRef.current = new AnimationMixer(vrm.scene);
+        const action = mixer.clipAction(clip);
-      mixerRef.current.clipAction(clip).play();
+        action.name = name;
+        return action;
       }
-  }, [gltf, vrma]);
+      return null;
+    };
+
+    const actionFly = createAction(vrmaFly, 'fly');
+    const actionFlyStop = createAction(vrmaFlyStop, 'fly_stop');
+    const actionFlyIdle = createAction(vrmaFlyIdle, 'fly_idle');
+
+    actionsRef.current = {
+      fly: actionFly,
+      fly_stop: actionFlyStop,
+      fly_idle: actionFlyIdle,
+    };
+
+    // Configure Loop Modes
+    if (actionFlyStop) {
+      actionFlyStop.setLoop(THREE.LoopOnce);
+      actionFlyStop.clampWhenFinished = true;
+    }
+
+    // Initial Animation (Idle: fly_idle)
+    if (actionFlyIdle) {
+      actionFlyIdle.play();
+      currentActionRef.current = 'fly_idle';
+    } else if (actionFly) {
+      actionFly.play();
+      currentActionRef.current = 'fly';
+    }
+
+    // Mixer Event Listener for 'finished' (for fly_stop -> fly_idle)
+    const onFinished = (e) => {
+      if (e.action === actionFlyStop) {
+        // fly_stop finished, crossfade to fly_idle
+        if (actionsRef.current.fly_idle) {
+          actionFlyStop.fadeOut(0.5);
+          actionsRef.current.fly_idle.reset().fadeIn(0.5).play();
+          currentActionRef.current = 'fly_idle';
+        }
+      }
+    };
+    mixer.addEventListener('finished', onFinished);
+
+    return () => {
+      mixer.removeEventListener('finished', onFinished);
+    };
+  }, [gltf, vrmaFly, vrmaFlyStop, vrmaFlyIdle]);
 
   useFrame((state, delta) => {
     mixerRef.current?.update(delta);
     vrmRef.current?.update(delta);
+
+    // Animation State Logic
+    const isMoving = keys.w || keys.s || keys.a || keys.d;
+    const actions = actionsRef.current;
+    const current = currentActionRef.current;
+
+    if (actions.fly && actions.fly_stop && actions.fly_idle) {
+      if (isMoving) {
+        // If moving and not flying, transition to fly
+        if (current !== 'fly') {
+          const prevAction = actions[current];
+          if (prevAction) prevAction.fadeOut(0.5);
+
+          actions.fly.reset().fadeIn(0.5).play();
+          currentActionRef.current = 'fly';
+        }
+      } else {
+        // If stopped moving and currently flying, transition to fly_stop (stop anim)
+        if (current === 'fly') {
+          actions.fly.fadeOut(0.5);
+          actions.fly_stop.reset().fadeIn(0.5).play();
+          currentActionRef.current = 'fly_stop';
+        }
+        // If currently fly_stop, wait for it to finish (handled by event listener)
+        // If currently fly_idle, stay there.
+      }
+    }
+
+    // Character Rotation Logic
+    if (vrmRef.current) {
+      const vrmNode = vrmRef.current.scene;
+      const moveDir = new Vector3(0, 0, 0);
+
+      if (keys.w) moveDir.z -= 1;
+      if (keys.s) moveDir.z += 1;
+      if (keys.a) moveDir.x -= 1;
+      if (keys.d) moveDir.x += 1;
+
+      if (moveDir.lengthSq() > 0) {
+        moveDir.normalize();
+
+        const cameraQuaternion = camera.quaternion.clone();
+        moveDir.applyQuaternion(cameraQuaternion);
+
+        // Create a target rotation looking at the movement direction
+        // Model faces -Z, so we want -Z to point to movement.
+        // lookAt points +Z to target. So we want +Z to point AWAY from movement.
+        const targetPos = vrmNode.position.clone().sub(moveDir);
+        const dummy = new THREE.Object3D();
+        dummy.position.copy(vrmNode.position);
+        dummy.lookAt(targetPos);
+
+        // Smoothly rotate towards target
+        vrmNode.quaternion.slerp(dummy.quaternion, 10.0 * delta);
+      }
+    }
   });
 
   return <primitive object={gltf.scene} />;
 }
 
+// Avatar側のカメラ操作と移動ロジック
+function CameraSync() {
+  const { camera } = useThree();
+  const vec = new Vector3();
+  const euler = new Euler(0, 0, 0, 'YXZ');
+
+  // Dynamic Zoom State
+  const zoomOffset = useRef(0);
+  const MAX_ZOOM_OFFSET = 10.0;
+  const ZOOM_SPEED = 2.0;
+
+  useFrame((state, delta) => {
+    // 1. カメラの回転をShared Stateに同期
+    worldState.quaternion.copy(camera.quaternion);
+
+    // 2. WASD移動ロジック
+    const isMoving = keys.w || keys.s || keys.a || keys.d;
+    const speed = worldState.speed * (keys.Shift ? 2.0 : 1.0) * delta;
+
+    // 前後 (W/S)
+    if (keys.w) {
+      vec.set(0, 0, -1).applyQuaternion(camera.quaternion);
+      worldState.position.addScaledVector(vec, speed);
+    }
+    if (keys.s) {
+      vec.set(0, 0, 1).applyQuaternion(camera.quaternion);
+      worldState.position.addScaledVector(vec, speed);
+    }
+
+    // 左右 (A/D)
+    if (keys.a) {
+      vec.set(-1, 0, 0).applyQuaternion(camera.quaternion);
+      worldState.position.addScaledVector(vec, speed);
+    }
+    if (keys.d) {
+      vec.set(1, 0, 0).applyQuaternion(camera.quaternion);
+      worldState.position.addScaledVector(vec, speed);
+    }
+
+    // 3. Dynamic Zoom Logic
+    const targetZoom = isMoving ? MAX_ZOOM_OFFSET : 0;
+    // Smoothly interpolate current zoom offset towards target
+    const diff = targetZoom - zoomOffset.current;
+    const step = diff * ZOOM_SPEED * delta;
+    zoomOffset.current += step;
+
+    camera.translateZ(step);
+  });
+
+  return null;
+}
+
 function AvatarLayer() {
   return (
     <Canvas gl={{ alpha: true, antialias: true }}>
       <PerspectiveCamera makeDefault position={[0, 1.5, 3]} fov={30} />
+      <CameraSync />
 
       <directionalLight position={[-1, 1, 1]} intensity={1.5} />
       <ambientLight intensity={1.0} />
@@ -230,7 +424,7 @@ function AvatarLayer() {
         <VrmCharacter />
       </Suspense>
 
-      <OrbitControls target={[0, 1.2, 0]} />
+      <OrbitControls target={[0, 1.2, 0]} minDistance={2.0} maxDistance={10.0} />
     </Canvas>
   );
 }