protected override bool CanBegin(FingerGestures.IFingerList touches)
{
if (!base.CanBegin(touches))
{
return(false);
}
FingerGestures.Finger finger0 = touches[0];
FingerGestures.Finger finger1 = touches[1];
if (!FingerGestures.AllFingersMoving(finger0, finger1))
{
return(false);
}
if (!FingersMovedInOppositeDirections(finger0, finger1))
{
return(false);
}
float gapDelta = ComputeGapDelta(finger0, finger1, finger0.StartPosition, finger1.StartPosition);
if (Mathf.Abs(gapDelta) < MinDistance)
{
return(false);
}
return(true);
}
protected override bool CanBegin(FingerGestures.IFingerList touches)
{
if (!base.CanBegin(touches))
{
return(false);
}
FingerGestures.Finger finger0 = touches[0];
FingerGestures.Finger finger1 = touches[1];
if (!FingerGestures.AllFingersMoving(finger0, finger1))
{
return(false);
}
if (!FingersMovedInOppositeDirections(finger0, finger1))
{
return(false);
}
// check if we went past the minimum rotation amount treshold
float rotation = SignedAngularGap(finger0, finger1, finger0.StartPosition, finger1.StartPosition);
if (Mathf.Abs(rotation) < MinRotation)
{
return(false);
}
return(true);
}
protected override bool CanBegin(PinchGesture gesture, FingerGestures.IFingerList touches)
{
if (!base.CanBegin(gesture, touches))
{
return(false);
}
FingerGestures.Finger finger0 = touches[0];
FingerGestures.Finger finger1 = touches[1];
if (!FingerGestures.AllFingersMoving(finger0, finger1))
{
return(false);
}
if (!FingersMovedInOppositeDirections(finger0, finger1))
{
return(false);
}
float startGap = Vector2.SqrMagnitude(finger0.StartPosition - finger1.StartPosition);
float curGap = Vector2.SqrMagnitude(finger0.Position - finger1.Position);
if (FingerGestures.GetAdjustedPixelDistance(Mathf.Abs(startGap - curGap)) < (MinDistance * MinDistance))
{
return(false);
}
return(true);
}
protected override GestureRecognitionState OnRecognize(PinchGesture gesture, FingerGestures.IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
gesture.Delta = 0;
// fingers were lifted?
if (touches.Count < RequiredFingerCount)
{
return(GestureRecognitionState.Recognized);
}
// more fingers added, gesture failed
return(GestureRecognitionState.Failed);
}
FingerGestures.Finger finger0 = touches[0];
FingerGestures.Finger finger1 = touches[1];
gesture.Position = 0.5f * (finger0.Position + finger1.Position);
float curGap = Vector2.Distance(finger0.Position, finger1.Position);
// dont do anything if both fingers arent moving
if (!FingerGestures.AllFingersMoving(finger0, finger1))
{
return(GestureRecognitionState.InProgress);
}
float newDelta = FingerGestures.GetAdjustedPixelDistance(DeltaScale * (curGap - gesture.Gap));
gesture.Gap = curGap;
if (Mathf.Abs(newDelta) > 0.001f)
{
if (!FingersMovedInOppositeDirections(finger0, finger1))
{
// skip without firing event
return(GestureRecognitionState.Failed);// GestureRecognitionState.InProgress; //TODO: might want to make this configurable, so the recognizer can fail if fingers move in same direction
}
gesture.Delta = newDelta;
RaiseEvent(gesture);
}
return(GestureRecognitionState.InProgress);
}
protected override GestureState OnActive(FingerGestures.IFingerList touches)
{
Debug.Log("PinchGestureRecognizer OnActive count is " + touches.Count);
if (touches.Count != RequiredFingerCount)
{
// fingers were lifted?
if (touches.Count < RequiredFingerCount)
{
RaiseOnPinchEnd();
return(GestureState.Recognized);
}
// more fingers added, gesture failed
return(GestureState.Failed);
}
FingerGestures.Finger finger0 = touches[0];
FingerGestures.Finger finger1 = touches[1];
Position[0] = finger0.Position;
Position[1] = finger1.Position;
// dont do anything if both fingers arent moving
if (!FingerGestures.AllFingersMoving(finger0, finger1))
{
return(GestureState.InProgress);
}
float newDelta = ComputeGapDelta(finger0, finger1, finger0.PreviousPosition, finger1.PreviousPosition);
if (Mathf.Abs(newDelta) > 0.001f)
{
if (!FingersMovedInOppositeDirections(finger0, finger1))
{
return(GestureState.InProgress); //TODO: might want to make this configurable, so the recognizer can fail if fingers move in same direction
}
delta = DeltaScale * newDelta;
RaiseOnPinchMove();
}
return(GestureState.InProgress);
}
protected override GestureState OnActive(FingerGestures.IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
// fingers were lifted?
if (touches.Count < RequiredFingerCount)
{
if (OnRotationEnd != null)
{
OnRotationEnd(this);
}
return(GestureState.Recognized);
}
// more fingers added, gesture failed
return(GestureState.Failed);
}
FingerGestures.Finger finger0 = touches[0];
FingerGestures.Finger finger1 = touches[1];
Position[0] = finger0.Position;
Position[1] = finger1.Position;
// dont do anything if both fingers arent moving
if (!FingerGestures.AllFingersMoving(finger0, finger1))
{
return(GestureState.InProgress);
}
rotationDelta = SignedAngularGap(finger0, finger1, finger0.PreviousPosition, finger1.PreviousPosition);
totalRotation += rotationDelta;
if (OnRotationMove != null)
{
OnRotationMove(this);
}
return(GestureState.InProgress);
}
protected override GestureRecognitionState OnRecognize(TwistGesture gesture, FingerGestures.IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
gesture.DeltaRotation = 0;
// fingers were lifted?
if (touches.Count < RequiredFingerCount)
{
return(GestureRecognitionState.Ended);
}
// more fingers added, gesture failed
return(GestureRecognitionState.Failed);
}
FingerGestures.Finger finger0 = touches[0];
FingerGestures.Finger finger1 = touches[1];
gesture.Position = 0.5f * (finger0.Position + finger1.Position);
// dont do anything if both fingers arent moving
if (!FingerGestures.AllFingersMoving(finger0, finger1))
{
return(GestureRecognitionState.InProgress);
}
gesture.DeltaRotation = SignedAngularGap(finger0, finger1, finger0.PreviousPosition, finger1.PreviousPosition);
// only raise event when the twist angle has changed
if (Mathf.Abs(gesture.DeltaRotation) > Mathf.Epsilon)
{
gesture.TotalRotation += gesture.DeltaRotation;
RaiseEvent(gesture);
}
return(GestureRecognitionState.InProgress);
}
protected override GestureRecognitionState OnRecognize(PinchRotateGesture gesture, FingerGestures.IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
gesture.Delta = 0;
// fingers were lifted?
if (touches.Count < RequiredFingerCount)
{
return(GestureRecognitionState.Recognized);
}
// more fingers added, gesture failed
return(GestureRecognitionState.Failed);
}
FingerGestures.Finger finger0 = touches[0];
FingerGestures.Finger finger1 = touches[1];
gesture.Position = 0.5f * (finger0.Position + finger1.Position);
float curGap = Vector2.Distance(finger0.Position, finger1.Position);
// dont do anything if both fingers arent moving
if (!FingerGestures.AllFingersMoving(finger0, finger1)) // && curGap >= UnityEngine.Screen.width * 0.25f
{
return(GestureRecognitionState.InProgress);
}
float newDelta = FingerGestures.GetAdjustedPixelDistance(DeltaScale * (curGap - gesture.Gap));
gesture.Gap = curGap;
// if( Mathf.Abs( newDelta ) > 0.001f )
{
if (touches.AllMoving() && touches.MovingInSameDirection(0.35f))//&& curGap < UnityEngine.Screen.width*0.25f
{
EventMessageName = OnTwoFingerDrag;
//Debug.Log("OnTwoFingerDrag rec");
// skip without firing event
// return GestureRecognitionState.InProgress;// GestureRecognitionState.InProgress; //TODO: might want to make this configurable, so the recognizer can fail if fingers move in same direction
}
else if (touches.AllMoving() && FingersMovedInOppositeDirections(finger0, finger1))
{
EventMessageName = EventOnPinch;
// Debug.Log("EventOnPinch rec");
}
else
{
// Debug.Log("pinch rotate inProgress");
return(GestureRecognitionState.InProgress);
}
gesture.LastDelta = gesture.DeltaMove;
gesture.Delta = newDelta;
gesture.DeltaMove = gesture.Position - gesture.LastPos;
// if we are currently moving, or we were still moving last frame (allows listeners to detect when the finger is stationary when MoveDelta = 0)...
if (gesture.DeltaMove.sqrMagnitude > 0 || gesture.LastDelta.sqrMagnitude > 0)
{
gesture.LastPos = gesture.Position;
}
RaiseEvent(gesture);
}
return(GestureRecognitionState.InProgress);
}