public static LEAP_HAND CreateHand(Hand hand)
{
LEAP_HAND leapHand = new LEAP_HAND();
leapHand.id = (uint)hand.Id;
leapHand.flags = 0;
leapHand.type = hand.IsLeft ? eLeapHandType.eLeapHandType_Right : eLeapHandType.eLeapHandType_Left; //HACK: flip due to coordinate space handedness
leapHand.confidence = hand.Confidence;
leapHand.visible_time = (uint)(hand.TimeVisible * 1000);
leapHand.grab_angle = hand.GrabAngle;
leapHand.grab_strength = hand.GrabStrength;
leapHand.pinch_distance = hand.PinchDistance;
leapHand.pinch_strength = hand.PinchStrength;
LEAP_PALM palm = new LEAP_PALM();
palm.position = new LEAP_VECTOR(hand.PalmPosition);
palm.stabilized_position = Vector3.zero.ToCVector(); //HACK: stabilized position is sometimes NaN, ignore it
palm.velocity = new LEAP_VECTOR(hand.PalmVelocity);
palm.normal = new LEAP_VECTOR(hand.PalmNormal);
palm.width = hand.PalmWidth;
palm.direction = new LEAP_VECTOR(hand.Direction);
// palm.orientation = new LEAP_QUATERNION(hand.Rotation);
leapHand.palm = palm;
leapHand.arm = CreateBone(hand.Arm);
for (int i = 0; i < hand.Fingers.Count; i++)
{
Finger finger = hand.Fingers[i];
switch (finger.Type)
{
case Finger.FingerType.TYPE_THUMB:
leapHand.thumb = CreateDigit(finger);
break;
case Finger.FingerType.TYPE_INDEX:
leapHand.index = CreateDigit(finger);
break;
case Finger.FingerType.TYPE_MIDDLE:
leapHand.middle = CreateDigit(finger);
break;
case Finger.FingerType.TYPE_RING:
leapHand.ring = CreateDigit(finger);
break;
case Finger.FingerType.TYPE_PINKY:
leapHand.pinky = CreateDigit(finger);
break;
default:
throw new Exception("Unexpected Finger Type " + finger.Type);
}
}
return(leapHand);
}
public static IntPtr CreateHandArray(Frame frame)
{
_ids.Clear();
var hands = frame.Hands;
IntPtr handArray = StructAllocator.AllocateArray <LEAP_HAND>(hands.Count);
for (int i = 0; i < hands.Count; i++)
{
if (_ids.Contains(hands[i].Id))
{
Debug.LogWarning("Found multiple hands with the same id");
continue;
}
LEAP_HAND hand = CreateHand(hands[i]);
StructMarshal <LEAP_HAND> .CopyIntoArray(handArray, ref hand, i);
_ids.Add(hands[i].Id);
}
return(handArray);
}
