/// <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;
}
protected override void OnBegin(LongPressGesture gesture, IFingerList touches)
{
gesture.position = touches.GetAveragePosition();
gesture.startPosition = touches.GetAverageStartPosition();
}