feat

assets/scripts/CameraFollow.ts

@@ -0,0 +1,79 @@
+import { _decorator, Component, Node, Vec3, Camera } from 'cc';
+const { ccclass, property } = _decorator;
+
+@ccclass('CameraFollow')
+export class CameraFollow extends Component {
+
+    @property(Node)
+    target: Node | null = null;  // 要跟随的目标（玩家）
+
+    @property({ range: [0.1, 10] })
+    followSpeed: number = 5.0;  // 跟随速度
+
+    @property(Vec3)
+    offset: Vec3 = new Vec3(0, 0, 10);  // 相机相对目标的偏移
+
+    @property({ range: [0, 1] })
+    smoothness: number = 0.1;  // 平滑度，0为瞬间跟随，1为最慢跟随
+
+    private camera: Camera | null = null;
+
+    onLoad() {
+        // 获取相机组件
+        this.camera = this.getComponent(Camera);
+        if (!this.camera) {
+            console.error('CameraFollow: 未找到Camera组件');
+        }
+    }
+
+    start() {
+        if (this.target) {
+            // 初始化相机位置
+            const initialPos = this.target.position.clone();
+            initialPos.add(this.offset);
+            this.node.position = initialPos;
+        }
+    }
+
+    update(deltaTime: number) {
+        if (!this.target) return;
+
+        // 计算目标位置
+        const targetPosition = this.target.position.clone();
+        targetPosition.add(this.offset);
+
+        // 使用插值实现平滑跟随
+        const currentPosition = this.node.position;
+        const newPosition = new Vec3();
+
+        // 根据平滑度设置插值速度
+        const lerpFactor = Math.min(1.0, this.followSpeed * deltaTime * (1 - this.smoothness + 0.1));
+
+        Vec3.lerp(newPosition, currentPosition, targetPosition, lerpFactor);
+        this.node.position = newPosition;
+    }
+
+    // 设置跟随目标
+    setTarget(target: Node) {
+        this.target = target;
+        if (target) {
+            const initialPos = target.position.clone();
+            initialPos.add(this.offset);
+            this.node.position = initialPos;
+        }
+    }
+
+    // 设置偏移量
+    setOffset(offset: Vec3) {
+        this.offset = offset;
+    }
+
+    // 瞬间移动到目标位置
+    snapToTarget() {
+        if (!this.target) return;
+
+        const targetPosition = this.target.position.clone();
+        targetPosition.add(this.offset);
+        this.node.position = targetPosition;
+    }
+}