DoTween 序列和路径

参考来自：http://blog.csdn.net/lyh916/article/details/45888117

创建Sequence：
Sequence可以包含Sequence，当执行一个Sequence时会顺序执行Tweener，可以使用Insert方法实现同时执行。
Sequence的方法：

static DOTween.Sequence()  
  
Append(Tween tween)  
AppendCallback(TweenCallback callback)  
AppendInterval(float interval)  
Insert(float atPosition, Tween tween)  
InsertCallback(float atPosition, TweenCallback callback)  
Join(Tween tween)  
Prepend(Tween tween)  
PrependCallback(TweenCallback callback)  
PrependInterval(float interval)

例子：

// Grab a free Sequence to use  
Sequence mySequence = DOTween.Sequence();  
// Add a movement tween at the beginning  
mySequence.Append(transform.DOMoveX(2, 1));  
// Add a rotation tween as soon as the previous one is finished  
mySequence.Append(transform.DORotate(new Vector3(0, 180, 0), 1));  
// Delay the whole Sequence by 1 second  
mySequence.PrependInterval(1);  
// Insert a scale tween for the whole duration of the Sequence  
mySequence.Insert(0, transform.DOScale(new Vector3(2, 2, 2), mySequence.Duration()));

等同于：

Sequence mySequence = DOTween.Sequence();
mySequence.Append(transform.DOMoveX(2, 1)) //第一个运动
		  .Append(transform.DORotate(new Vector3(0, 180, 0), 1)) //第二个运动
		  .PrependInterval(1) //运动延迟
		  .Insert(0, transform.DOScale(new Vector3(2, 2, 2), mySequence.Duration()));//跟上两个运动同时进行的运动

参考网址：
http://blog.csdn.net/u014230923/article/details/51469848