feat: Implement combat and movement sound effects with looping footsteps

src/view/GameRenderer.js

@@ -349,6 +349,8 @@ export class GameRenderer {
     }
 
     updateAnimations(time) {
+        let isAnyMoving = false;
+
         this.entities.forEach((mesh, id) => {
             const data = mesh.userData;
 
@@ -362,6 +364,11 @@ export class GameRenderer {
                 data.targetPos = new THREE.Vector3(nextStep.x, mesh.position.y, -nextStep.y);
             }
 
+            // Check if this entity is contributing to movement sound
+            if (data.isMoving || data.pathQueue.length > 0) {
+                isAnyMoving = true;
+            }
+
             if (data.isMoving) {
                 const duration = 300; // Hero movement speed (300ms per tile)
                 const elapsed = time - data.startTime;
@@ -457,14 +464,24 @@ export class GameRenderer {
 
 
             // IF Finished Sequence (Queue empty)
-            if (data.pathQueue.length === 0) {
-                // Check if it's the player (id 'p1')
-                if (id === 'p1' && this.onHeroFinishedMove) {
+            if (data.pathQueue.length === 0 && !data.isMoving) { // Ensure strict finished state
+                // Check if it's the player (id 'p1') -- NOTE: ID might be hero_barbarian etc.
+                // Using generic callback
+                if (id === 'p1' && this.onHeroFinishedMove) { // Legacy check?
                     // Grid Coords from World Coords (X, -Z)
                     this.onHeroFinishedMove(mesh.position.x, -mesh.position.z);
                 }
             }
         });
+
+        // Handle Footsteps Audio Globally
+        if (window.SOUND_MANAGER) {
+            if (isAnyMoving) {
+                window.SOUND_MANAGER.startLoop('footsteps');
+            } else {
+                window.SOUND_MANAGER.stopLoop('footsteps');
+            }
+        }
     }
     renderExits(exits) {
         // Cancel any pending render