private float GetAngle(Leap.Hand hand)
{
Vector3 proximalAxis = hand.DistalAxis() * -1f;
Vector3 radialAxis = hand.RadialAxis();
if (hand.IsLeft)
{
radialAxis *= -1f;
}
List <float> fingerAngles = new List <float>
{
Vector3.SignedAngle(proximalAxis, hand.GetIndex().Direction.ToVector3(), radialAxis),
Vector3.SignedAngle(proximalAxis, hand.GetMiddle().Direction.ToVector3(), radialAxis),
Vector3.SignedAngle(proximalAxis, hand.GetRing().Direction.ToVector3(), radialAxis),
Vector3.SignedAngle(proximalAxis, hand.GetPinky().Direction.ToVector3(), radialAxis)
};
List <float> fingerAnglesShifted = new List <float>();
foreach (float angle in fingerAngles)
{
float shiftedAngle = angle;
if (angle < -90f)
{
shiftedAngle += 360f;
}
fingerAnglesShifted.Add(shiftedAngle);
}
angle = 0.25f * (fingerAnglesShifted[0] + fingerAnglesShifted[1] + fingerAnglesShifted[2] + fingerAnglesShifted[3]);
return(angle);
}
//returns a true if a finger is pinching with the thumb, false if not
public bool checkPinchOfFinger(Leap.Hand hand, string finger)
{
switch (finger)
{
case "index":
if (getPinchDistance(hand.GetIndex(), hand.GetThumb()) < dist)
{
return(true);
}
break;
case "middle":
if (getPinchDistance(hand.GetMiddle(), hand.GetThumb()) < dist)
{
return(true);
}
break;
case "ring":
if (getPinchDistance(hand.GetRing(), hand.GetThumb()) < dist)
{
return(true);
}
break;
case "pinky":
if (getPinchDistance(hand.GetPinky(), hand.GetThumb()) < dist)
{
return(true);
}
break;
default:
break;
}
return(false);
}
