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NGUI UITween => PlayToggleOnce
NGUI 的 UITweenr 很 丰富，但是有时候 还是不足，比如 我想 Play Toggle 一次，它就没提供对应的API。
写一个扩展类，很简陋，只实现了初步功能。
当然最好还是修改其内部的源码，增加 Style 之类的。
1 public static class Extensions 2 { 3 4 public static TweenPosition _tween; 5 public static bool _isForward; 6 7 public static void PlayToggleOnce(this TweenPosition tween, bool isForward) 8 { 9 _isForward = isForward;10 _tween = tween;11 _newOrigin = default(Vector3);12 _newEnd = default(Vector3);13 _tween.Play(_isForward);14 EventDelegate.Add(_tween.onFinished, Reverse, true);15 }16 17 public static Vector3 _newOrigin = default(Vector3);18 public static Vector3 _newEnd = default(Vector3);19 20 /// start at newOrigin , end at newEnd21 public static void PlayToggleOnceWithNew(this TweenPosition tween, bool isForward,Vector3 newOrigin, Vector3 newEnd)22 {23 _isForward = isForward;24 _tween = tween;25 _newOrigin = newOrigin;26 _newEnd = newEnd;27 28 _tween.Play(_isForward);29 EventDelegate.Add(_tween.onFinished, Reverse, true);30 }31 32 public static void Reverse()33 {34 if (_newOrigin != default(Vector3) && _newEnd != default(Vector3))35 {36 _tween.ResetToBeginning();37 38 _tween.transform.localPosition = _newOrigin;39 _tween.SetStartToCurrentValue();40 //_tween.from = _newOrigin;41 42 _tween.to = _newEnd;43 44 Debug.Log("toggle");45 46 _tween.Play(_isForward);47 }48 else49 {50 _isForward = !_isForward;51 52 _tween.Play(_isForward);53 }54 }55 }
NGUI UITween => PlayToggleOnce
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