用Dotween做的一次数值折返运动

用Dotween做的一次数值折返运动

需求：求一个值单位时间内，从最大值X到0再返回到X

代码如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;public class 测试插值运动 : MonoBehaviour
{public float get;// Start is called before the first frame updatevoid Start(){float _max = 50;float _time = 2f;float _sp = 2f * _max / _time;DOTween.To(setter: value =>{get = TurnbackMovement(_max, value, _time, _sp);//Debug.Log(get);}, startValue: 0, endValue: _time, duration: _time).SetEase(Ease.Linear).OnComplete(() => { });}private float TurnbackMovement(float _max, float _currentTime, float _time,float _sp){var _num= 0f;if (_currentTime <= _time * 0.5f) _num = _max - _sp * _currentTime;else _num = _sp * (2 * _currentTime - _time);//Debug.LogError(_max+"  "+_currentTime+"  "+_time+"  "+_sp+"  "+ _num);      return Mathf.Clamp(_num,0,_max);}
}