将DOTween导入unity项目

1. 从官方网站下载DOTween DOTween

官方文档

基本结构

//引用
using DG.Tweening;
//声明一个DOTween对象
private Tween TweenObj;
//声明一个动画队列
private Sequence SequenceObj = DoTween.Sequence;

Sequence

回调函数

函数名	作用
OnComplete	指结束动作后触发
OnStepComplete	完成单个循环后触发
OnKill	是指所有运动结束时，才触发。
OnPlay	每次从暂停状态恢复播放时触发
OnPause	当状态从播放变为暂停时触发
OnStart	开始时调用
OnUpdate	每一帧调用
OnRewind	播放时到达起始位置时将触发

DOTween常实现的效果

• 基本的图形变化
  • 放大，缩小，位移，旋转，旋转，翻转（对RectTransform的控制）
  • 色彩变化，透明度变化（对Image的控制）
  • 轨迹移动
  • 快进慢放效果

播放速率曲线（缓动函数）

https://www.cnblogs.com/Fallever/p/8871456.html

常见的缓动函数

来源 (https://easings.net/zh-cn)
DOTween缓动函数枚举

public enum Ease
    {
        Unset = 0,
        Linear = 1,
        InSine = 2,
        OutSine = 3,
        InOutSine = 4,
        InQuad = 5,
        OutQuad = 6,
        InOutQuad = 7,
        InCubic = 8,
        OutCubic = 9,
        InOutCubic = 10,
        InQuart = 11,
        OutQuart = 12,
        InOutQuart = 13,
        InQuint = 14,
        OutQuint = 15,
        InOutQuint = 16,
        InExpo = 17,
        OutExpo = 18,
        InOutExpo = 19,
        InCirc = 20,
        OutCirc = 21,
        InOutCirc = 22,
        InElastic = 23,
        OutElastic = 24,
        InOutElastic = 25,
        InBack = 26,
        OutBack = 27,
        InOutBack = 28,
        InBounce = 29,
        OutBounce = 30,
        InOutBounce = 31,
        Flash = 32,
        InFlash = 33,
        OutFlash = 34,
        InOutFlash = 35,
        //
        // 摘要:
        //     Don't assign this! It's assigned automatically when creating 0 duration tweens
        INTERNAL_Zero = 36,
        //
        // 摘要:
        //     Don't assign this! It's assigned automatically when setting the ease to an AnimationCurve
        //     or to a custom ease function
        INTERNAL_Custom = 37
    }

可视化组件DOTweenAnimation组件