perf: 限制相机移动范围

assets/scripts/PlayerController.ts

@@ -13,6 +13,12 @@ export class PlayerController extends Component {
   @property({ range: [1, 20] })
   moveSpeed: number = 5;  // 移动速度
 
+  @property
+  mapWidth: number = 1080;  // 地图宽度
+
+  @property
+  mapHeight: number = 2560;  // 地图高度
+
   private isMoving: boolean = false;
   private targetPosition: Vec3 = new Vec3();
   private originalPosition: Vec3 = new Vec3();
@@ -79,11 +85,28 @@ export class PlayerController extends Component {
   private moveToPosition(worldPos: Vec3) {
     if (!this.player) return;
 
+    // 限制目标位置在地图边界内
+    const clampedPos = this.clampPlayerPosition(worldPos);
+
     // 设置目标位置（保持Z轴不变）
-    this.targetPosition.set(worldPos.x, worldPos.y, this.player.position.z);
+    this.targetPosition.set(clampedPos.x, clampedPos.y, this.player.position.z);
     this.isMoving = true;
 
-    console.log(`移动目标: (${worldPos.x.toFixed(2)}, ${worldPos.y.toFixed(2)})`);
+    console.log(`移动目标: (${clampedPos.x.toFixed(2)}, ${clampedPos.y.toFixed(2)})`);
+  }
+
+  // 限制玩家位置在地图边界内
+  private clampPlayerPosition(position: Vec3): Vec3 {
+    // 计算地图边界（地图锚点为0.5,0.5，所以范围是-mapWidth/2到+mapWidth/2）
+    const mapHalfWidth = this.mapWidth * 0.5;
+    const mapHalfHeight = this.mapHeight * 0.5;
+
+    // 限制玩家位置
+    const clampedPosition = position.clone();
+    clampedPosition.x = Math.max(-mapHalfWidth, Math.min(mapHalfWidth, position.x));
+    clampedPosition.y = Math.max(-mapHalfHeight, Math.min(mapHalfHeight, position.y));
+
+    return clampedPosition;
   }
 
   update(deltaTime: number) {
@@ -117,7 +140,10 @@ export class PlayerController extends Component {
       // 正常移动
       const newPosition = new Vec3();
       Vec3.scaleAndAdd(newPosition, currentPos, direction, moveDistance);
-      this.player.position = newPosition;
+
+      // 确保新位置在地图边界内
+      const clampedNewPosition = this.clampPlayerPosition(newPosition);
+      this.player.position = clampedNewPosition;
     }
   }
 }