squidGame/tgx-games-client/assets/level2/Script/RopeMovement.ts

import { _decorator, Component, Vec3 } from 'cc';
const { ccclass, property } = _decorator;

@ccclass('RopeMovement')
export class RopeMovement extends Component {
    @property
    distance: number = 10; // 控制移动的总距离

    @property
    loopDuration: number = 5; // 循环一次的时长，单位为秒

    private initialPosition: Vec3 = new Vec3(); // 初始位置
    private movingRight: boolean = true; // 控制移动方向
    private elapsedTime: number = 0; // 已经过的时间

    start() {
        // 记录初始位置
        this.initialPosition.set(this.node.position);
    }

    update(deltaTime: number) {
        // 更新已经过的时间
        this.elapsedTime += deltaTime;

        // 根据已经过的时间，计算循环一次的比例
        const loopProgress = this.elapsedTime / this.loopDuration;

        // 根据比例计算当前位置与初始位置的距离
        const currentDistance = this.distance * loopProgress;

        // 根据移动方向和速度更新小人的位置
        if (this.movingRight) {
            this.node.position = this.initialPosition.add3f(currentDistance, 0, 0);
        } else {
            this.node.position = this.initialPosition.add3f(-currentDistance, 0, 0);
        }

        // 如果已经过了循环一次的时长，重置已经过的时间并改变移动方向
        if (this.elapsedTime >= this.loopDuration) {
            this.elapsedTime = 0;
            this.movingRight = !this.movingRight;
        }
    }
}