// return signed angle in degrees between current finger position and ref positions
static float SignedAngularGap(FingerGestures.Finger finger0, FingerGestures.Finger finger1, Vector2 refPos0, Vector2 refPos1)
{
Vector2 curDir = (finger0.Position - finger1.Position).normalized;
Vector2 refDir = (refPos0 - refPos1).normalized;
// check if we went past the minimum rotation amount treshold
return(Mathf.Rad2Deg * FingerGestures.SignedAngle(refDir, curDir));
}
protected override GestureRecognitionState OnRecognize(SwipeGesture gesture, FingerGestures.IFingerList touches)
{
float minDistanceInPixels = ToPixels(MinDistance);
float maxDistanceInPixels = ToPixels(MaxDistance);
if (touches.Count != RequiredFingerCount)
{
// more fingers were added - fail right away
if (touches.Count > RequiredFingerCount)
{
return(GestureRecognitionState.Failed);
}
//
// fingers were lifted-off
//
// didn't swipe far enough
if (gesture.Move.magnitude < Mathf.Max(1, minDistanceInPixels))
{
return(GestureRecognitionState.Failed);
}
// get approx swipe direction
gesture.Direction = FingerGestures.GetSwipeDirection(gesture.Move);
return(GestureRecognitionState.Recognized);
}
Vector2 previousMotion = gesture.Move;
gesture.Position = touches.GetAveragePosition();
gesture.Move = gesture.Position - gesture.StartPosition;
// pixel-adjusted distance
float distance = gesture.Move.magnitude;
// moved too far
if (maxDistanceInPixels > minDistanceInPixels && distance > maxDistanceInPixels)
{
//Debug.LogWarning( "Too far: " + distance );
return(GestureRecognitionState.Failed);
}
if (gesture.ElapsedTime > 0)
{
gesture.Velocity = distance / gesture.ElapsedTime;
}
else
{
gesture.Velocity = 0;
}
// we're going too slow
if (gesture.MoveCounter > 2 && gesture.Velocity < ToPixels(MinVelocity))
{
//Debug.LogWarning( "Too slow: " + gesture.Velocity );
return(GestureRecognitionState.Failed);
}
// check if we have deviated too much from our initial direction
if (distance > 50.0f && gesture.MoveCounter > 2)
{
// accumulate delta angle
gesture.Deviation += Mathf.Rad2Deg * FingerGestures.SignedAngle(previousMotion, gesture.Move);
if (Mathf.Abs(gesture.Deviation) > MaxDeviation)
{
//Debug.LogWarning( "Swipe: deviated too much from initial direction (" + gesture.Deviation + ")" );
return(GestureRecognitionState.Failed);
}
}
++gesture.MoveCounter;
return(GestureRecognitionState.InProgress);
}
protected override GestureRecognitionState OnRecognize(SwipeGesture gesture, FingerGestures.IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
// more fingers were added - fail right away
if (touches.Count > RequiredFingerCount)
{
return(GestureRecognitionState.Failed);
}
//
// fingers were lifted-off
//
// didn't swipe far enough
if (FingerGestures.GetAdjustedPixelDistance(gesture.Move.magnitude) < Mathf.Max(1, MinDistance))
{
return(GestureRecognitionState.Failed);
}
// get approx swipe direction
gesture.Direction = FingerGestures.GetSwipeDirection(gesture.Move);
return(GestureRecognitionState.Recognized);
}
Vector2 previousMotion = gesture.Move;
gesture.Position = touches.GetAveragePosition();
gesture.Move = gesture.Position - gesture.StartPosition;
float distance = FingerGestures.GetAdjustedPixelDistance(gesture.Move.magnitude);
// moved too far
if (MaxDistance > MinDistance && distance > MaxDistance)
{
//Debug.LogWarning( "Too far: " + distance );
return(GestureRecognitionState.Failed);
}
if (gesture.ElapsedTime > 0)
{
gesture.Velocity = distance / gesture.ElapsedTime;
}
else
{
gesture.Velocity = 0;
}
// we're going too slow
if (gesture.MoveCounter > 2 && gesture.Velocity < MinVelocity)
{
//Debug.LogWarning( "Too slow: " + gesture.Velocity );
return(GestureRecognitionState.Failed);
}
/*
* FingerGestures.SwipeDirection newDirection = FingerGestures.GetSwipeDirection( Move.normalized, DirectionTolerance );
*
* // we went in a bad direction
* if( !IsValidDirection( newDirection ) || ( direction != FingerGestures.SwipeDirection.None && newDirection != direction ) )
* return GestureRecognitionState.Failed;
*
* direction = newDirection;
*/
// check if we have deviated too much from our initial direction
if (distance > 50.0f && gesture.MoveCounter > 2)
{
// accumulate delta angle
gesture.Deviation += Mathf.Rad2Deg * FingerGestures.SignedAngle(previousMotion, gesture.Move);
if (Mathf.Abs(gesture.Deviation) > MaxDeviation)
{
//Debug.LogWarning( "Swipe: deviated too much from initial direction (" + gesture.Deviation + ")" );
return(GestureRecognitionState.Failed);
}
}
++gesture.MoveCounter;
return(GestureRecognitionState.InProgress);
}
