/// <summary>
/// 手势识别
/// </summary>
protected override GestureState OnRecognize(DragPressGesture gesture, IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
// fingers were lifted off
if (touches.Count < RequiredFingerCount)
{
return(GestureState.Ended);
}
return(GestureState.Failed);
}
if (RequiredFingerCount >= 2 &&
touches.AllMoving() && !touches.MovingInSameDirection(0.35f))
{
return(GestureState.Failed);
}
gesture.position = touches.GetAveragePosition();
gesture.LastDelta = gesture.DeltaMove;
gesture.DeltaMove = gesture.position - gesture.LastPos;
if (gesture.DeltaMove.sqrMagnitude > 0 || gesture.LastDelta.sqrMagnitude > 0)
{
gesture.LastPos = gesture.position;
}
RaiseEvent(gesture);
return(GestureState.InProgress);
}
/// <summary>
/// 手势开始
/// </summary>
protected override void OnBegin(DragPressGesture gesture, IFingerList touches)
{
gesture.position = touches.GetAveragePosition();
gesture.startPosition = touches.GetAverageStartPosition();
gesture.DeltaMove = gesture.position - gesture.startPosition;
gesture.LastDelta = Vector2.zero;
gesture.LastPos = gesture.position;
}
/// ---------------------------------------------------------------------------------
/// <summary>
/// 判断手势是否可以开始
/// </summary>
/// ---------------------------------------------------------------------------------
protected virtual bool CanBegin(T gesture, IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
return(false);
}
return(true);
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// 判断手势的状态
/// </summary>
/// ------------------------------------------------------------------------------------
protected virtual void UpdateGesture(T gesture, IFingerList touches)
{
/*
* if (gesture.State == GestureState.Ready)
* return;
*
* if (gesture.State == GestureState.Started)
* gesture.State = GestureState.InProgress;
*
* switch (gesture.State)
* {
* case GestureState.InProgress:
* {
* GestureState newState = OnRecognize(gesture, touches);
* if (newState == GestureState.FailAndRetry)
* {
* gesture.State = GestureState.Failed;
* Reset(gesture);
*
* if (CanBegin(gesture, touches))
* {
* Begin(gesture, touches);
* }
* }
* else
* {
* if (newState == GestureState.InProgress)
* {
* //gesture.PickStartSelection(Raycaster);
* }
*
* gesture.State = newState;
* }
* }
* break;
*
* case GestureState.Recognized:
* case GestureState.Failed:
* {
* RaiseEvent(gesture);
* Reset(gesture);
* }
* break;
*
* default:
* Debug.LogError("Unhandled state" + gesture.State);
* gesture.State = GestureState.Failed;
* break;
*
* }
*/
}
protected override GestureState OnRecognize(TapGesture gesture, IFingerList touches)
{
if (touches.Count != 1)
{
return(GestureState.Failed);
}
if (gesture.deltaTime <= Duration)
{
return(GestureState.Recognized);
}
return(GestureState.InProgress);
}
protected override GestureState OnRecognize(LongPressGesture gesture, IFingerList touches)
{
/*
* if (touches.Count != 1)
* return GestureState.Failed;
*
* if (gesture.deltaTime >= Duration)
* return GestureState.Recognized;
*
* if (touches.GetAverageDistanceFromStart() > ToPixels(MoveTolerance))
* return GestureState.Failed;
*/
return(GestureState.InProgress);
}
/// ---------------------------------------------------------------------------------
/// <summary>
/// 计算当前所有的手指的情况
/// </summary>
/// ---------------------------------------------------------------------------------
public virtual void UpdateExclusive()
{
T pGest = _gestures[0];
IFingerList touches = EasyFingerGestues.instance.mTouches;
if (pGest.state == GestureState.Ready)
{
if (CanBegin(pGest, touches))
{
Begin(pGest, touches);
}
}
UpdateGesture(pGest, touches);
}
protected override bool CanBegin(DragPressGesture gesture, IFingerList touches)
{
/*
* if (!base.CanBegin(gesture, touches))
* return false;
*
* if (touches.GetAverageDistanceFromStart() < ToPixels(MoveTolerance))
* return false;
*
* if (!touches.AllMoving())
* return false;
*
* if (RequiredFingerCount >= 2 && !touches.MovingInSameDirection(0.35f))
* return false;
*/
return(true);
}
/// ---------------------------------------------------------------------------------
/// <summary>
/// 根据射线检测，手势与GameObject 是否有碰撞，来更新手势的状态
/// </summary>
/// ---------------------------------------------------------------------------------
void Begin(T gesture, IFingerList touches)
{
gesture.startTime = Time.time;
#if UNITY_EDITOR
if (gesture.Fingers.Count > 0)
{
Debug.Log("egin gesture with fingers list not properly released");
}
#endif
for (int i = 0; i < touches.Count; ++i)
{
Finger finger = touches[i];
gesture.Fingers.Add(finger);
}
OnBegin(gesture, touches);
gesture.state = GestureState.Started;
}
protected override void OnBegin(TapGesture gesture, IFingerList touches)
{
}
protected override void OnBegin(LongPressGesture gesture, IFingerList touches)
{
gesture.position = touches.GetAveragePosition();
gesture.startPosition = touches.GetAverageStartPosition();
}
/// <summary>
/// 手势识别
/// </summary>
protected override GestureState OnRecognize(CirclePressGesture gesture, IFingerList touches)
{
return(GestureState.InProgress);
}
/// <summary>
/// 手势开始
/// </summary>
protected override void OnBegin(CirclePressGesture gesture, IFingerList touches)
{
}
/// --------------------------------------------------------------------------------- /// <summary> /// 手势可以开识别处理, 子类中必须实现 /// </summary> /// --------------------------------------------------------------------------------- protected abstract GestureState OnRecognize(T gesture, IFingerList touches);
/// --------------------------------------------------------------------------------- /// <summary> /// 手势可以开始识别, 子类中必须实现 /// </summary> /// --------------------------------------------------------------------------------- protected abstract void OnBegin(T gesture, IFingerList touches);
