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assets/scripts/CameraRig.ts

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+// assets/scripts/CameraRig.ts
+import { _decorator, Component, Node, Vec3, math } from "cc";
+const { ccclass, property } = _decorator;
+
+@ccclass("CameraRig")
+export class CameraRig extends Component {
+  @property(Node) ball!: Node;
+  @property({ tooltip: "跟随平滑（0~1，越小越平滑）" }) smooth = 0.1;
+  @property(Vec3) offset = new Vec3(0, 2.5, -5);
+
+  private _mode: "static" | "follow" = "static";
+
+  setModeFollow() {
+    this._mode = "follow";
+  }
+  setModeStatic() {
+    this._mode = "static";
+  }
+
+  lateUpdate(dt: number) {
+    if (this._mode !== "follow" || !this.ball) return;
+    const target = this.ball.worldPosition.clone().add(this.offset);
+    const p = this.node.worldPosition.clone();
+    const lerp = new Vec3(
+      math.lerp(p.x, target.x, 1 - this.smooth),
+      math.lerp(p.y, target.y, 1 - this.smooth),
+      math.lerp(p.z, target.z, 1 - this.smooth)
+    );
+    this.node.setWorldPosition(lerp);
+    this.node.lookAt(this.ball.worldPosition);
+  }
+}