import { _decorator, CCFloat, Component, Node, tween } from 'cc';
const { ccclass, property, float } = _decorator;

@ccclass('ObstacleController')
export class ObstacleController extends Component {
    @property(Node)
    private target: Node;
    @property([Node])
    private waypoints: Node[] = [];
    @property(CCFloat)
    private speed: number = 0;

    protected start() {
        //if (this.target !== null)
        this.target.setPosition(this.waypoints[this.waypoints.length - 1].position);
        this.followPath();
    }

    private followPath() {
        const tweenPath = tween(this.target);

        for (let i = 0; i < this.waypoints.length; i++) {
            let a = tween(this.target).to(this.speed, { position: this.waypoints[i].getPosition() });
            tweenPath.then(a);
        }
        // tweenPath.union().repeat(10)
        tweenPath.union().repeatForever();
        tweenPath.start();
    }
}