// 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);
  }
}