team2_jj/assets/scripts/main/TrainAni.ts

import { _decorator, Component, Node, tween, CCLoader, Vec3 } from 'cc';
import { Utils } from '../core/utils/Utils';
import { Trajectory } from '../turntable/Trajectory';
const { ccclass, property } = _decorator;

@ccclass('TrainAni')
export class TrainAni extends Component {
    public initPosition: Vec3 = Vec3.ZERO;
    public targetPosition: Vec3 = Vec3.ZERO;
    public startPosition: Vec3 = Vec3.ZERO;
    public endPosition: Vec3 = Vec3.ZERO;

    start() {
        this.node.setPosition(this.initPosition);
        tween<Node>(this.node)
            .to(0.8, { position: this.targetPosition }, { easing: "quadOut" })
            .call(() => {
                let trajectory = this.node.addComponent(Trajectory);
                trajectory.startPoint = this.startPosition;
                trajectory.ctrl1Point = new Vec3(Utils.random_both(300, -300), Utils.random_both(0, -500));
                trajectory.ctrl2Point = new Vec3(Utils.random_both(100, -100), Utils.random_both(300, -300));
                trajectory.endPoint = this.endPosition;
            })
            .start();
    }
}