标签：结束 AnimationClip timePosition public clip var evt 监听 out
# 实现要点：Unity的动画不管是Animation(legncy)或Animator都没有提供监听动画开始或结束的接口，不过他的AnimationClip可以在某一帧上添加event，event触发时可以调用某个函数，
这边就是利用了这个功能，来实现监听的。监听开始就是第1帧加个事件，监听结束就是在最后一帧加个事件（使用AnimationClip.AddEvent函数）。
public class AnimClipTimePositionListeners : MonoBehaviour
{
public class TimePositionEvent : UnityEvent<AnimationEvent> { }
const int Time_Position_Scale = 100000;
struct ListenersKey
{
public AnimationClip _clip; //
public int _timePosition; //监听某个clip的不同时间
public ListenersKey(AnimationClip clip, float timePosition)
{
_clip = clip;
_timePosition = (int)(timePosition * Time_Position_Scale);
}
}
Dictionary<ListenersKey, TimePositionEvent> _listenersDict = new Dictionary<ListenersKey, TimePositionEvent>();
public void OnEvent(AnimationEvent evt)
{
//Debug.Log($"OnEvent: AnimationEvent");
var clip = evt.animatorClipInfo.clip;
var timePosition = evt.time;
var key = new ListenersKey(clip, timePosition);
if (_listenersDict.TryGetValue(key, out var tpe))
{
tpe.Invoke(evt);
}
}
public void AddListener(AnimationClip clip, float timePosition, UnityAction<AnimationEvent> l)
{
if (timePosition < 0)
Debug.LogError($"timePos < 0: {timePosition}");
var key = new ListenersKey(clip, timePosition);
if (!_listenersDict.TryGetValue(key, out var tpe))
{
tpe = new TimePositionEvent();
_listenersDict.Add(key, tpe);
}
tpe.AddListener(l);
}
public void RemoveListener(AnimationClip clip, float timePosition, UnityAction<AnimationEvent> l)
{
if (timePosition < 0)
Debug.LogError($"timePos < 0: {timePosition}");
var key = new ListenersKey(clip, timePosition);
if (_listenersDict.TryGetValue(key, out var tpe))
{
tpe.RemoveListener(l);
}
}
public void RemoveAllListeners(AnimationClip clip, float timePosition)
{
var key = new ListenersKey(clip, timePosition);
if (_listenersDict.TryGetValue(key, out var tpe))
{
tpe.RemoveAllListeners();
}
}
public static bool TryGetAnimatorClip(Animator animator, string clipName, out AnimationClip outClip)
{
var clips = animator.runtimeAnimatorController.animationClips;
for (var i = 0; i < clips.Length; ++i)
{
var clip = clips[i];
if (clip.name == clipName)
{
outClip = clip;
return true;
}
}
outClip = null;
return false;
}
public static bool TryGetAnimatorClip(AnimatorClipInfo[] clipInfo, string clipName, out AnimationClip outClip)
{
for (var i = 0; i < clipInfo.Length; ++i)
{
var clip = clipInfo[i].clip;
if (clip.name == clipName)
{
outClip = clip;
return true;
}
}
outClip = null;
return false;
}
static bool IsTimePositionEquals(float t1, float t2)
{
return ((int)t1 * Time_Position_Scale) == ((int)t2 * Time_Position_Scale);
}
public static bool TryGetClipAnimationEvent(AnimationClip clip, float timePosition, out AnimationEvent outEvt)
{
for (var i = 0; i < clip.events.Length; ++i)
{
var evt = clip.events[i];
if ("OnEvent" == evt.functionName)
{
if (IsTimePositionEquals(evt.time, timePosition))
{
outEvt = evt;
return true;
}
}
}
outEvt = null;
return false;
}
private bool TryGetAnimationEvent(int layerIndex, string clipName, ref float timePosition, out AnimationClip clip, out AnimationEvent evt)
{
var animator = GetComponent<Animator>();
var clipInfo = animator.GetCurrentAnimatorClipInfo(layerIndex);
if (TryGetAnimatorClip(clipInfo, clipName, out clip))
{
if (timePosition < 0)
timePosition = clip.length;
if (!TryGetClipAnimationEvent(clip, timePosition, out evt))
{
evt = new AnimationEvent();
evt.functionName = "OnEvent";
evt.time = timePosition;
clip.AddEvent(evt);
}
return true;
}
clip = null;
evt = null;
return false;
}
public void AddListener(int layerIndex, string clipName, float timePosition, UnityAction<AnimationEvent> l)
{
if (TryGetAnimationEvent(layerIndex, clipName, ref timePosition, out var clip, out var evt))
{
AddListener(clip, timePosition, l);
}
else
{
Debug.LogError($"clip not exist: layer:{layerIndex}, name:{clipName}");
}
}
public void RemoveListener(int layerIndex, string clipName, float timePosition, UnityAction<AnimationEvent> l)
{
if (TryGetAnimationEvent(layerIndex, clipName, ref timePosition, out var clip, out var evt))
{
RemoveListener(clip, timePosition, l);
}
else
{
Debug.LogError($"clip not exist: layer:{layerIndex}, name:{clipName}");
}
}
public void RemoveAllListeners(int layerIndex, string clipName, float timePosition)
{
if (TryGetAnimationEvent(layerIndex, clipName, ref timePosition, out var clip, out var evt))
{
RemoveAllListeners(clip, timePosition);
}
else
{
Debug.LogError($"clip not exist: layer:{layerIndex}, name:{clipName}");
}
}
}
# 注册监听
public class Test : MonoBehaviour
{
public AnimClipTimePositionListeners listeners;
void Start()
{
listeners.AddListener(0, "New Animation", 0, (evt) =>
{
Debug.Log($"start");
});
listeners.AddListener(0, "New Animation", -1, (evt) =>
{
Debug.Log($"end");
});
}
}
标签：结束,AnimationClip,timePosition,public,clip,var,evt,监听,out 来源： https://www.cnblogs.com/sailJs/p/16459206.html
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