/// <summary>
/// Converts a Leap.Finger.FingerType enum type to a FingerFilter enum.
///
/// There are two possible failure states: being fed an enum as integer that is out of range (you have to try hard to do this), and
/// trying to convert a FingerFilter.none to Leap.Finger.FingerType, as FingerType has no equivalent.
///
/// Upon failure, the method will throw a System.NotSupported exception with details about the failure.
/// </summary>
/// <param name="finger">Finger filter to convert.</param>
/// <returns></returns>
public static Finger.FingerType FingerTypeFromFingerFilter(FingerFilter finger)
{
switch (finger)
{
case FingerFilter.none:
throw new System.NotSupportedException("Error in HandProperties.cs: FingerFilter.none cannot map to Leap.Finger.FingerType. No equivalent exists.");
return(Finger.FingerType.TYPE_THUMB); // all thumbs, lol
case FingerFilter.thumb:
return(Finger.FingerType.TYPE_THUMB);
case FingerFilter.index:
return(Finger.FingerType.TYPE_INDEX);
case FingerFilter.middle:
return(Finger.FingerType.TYPE_MIDDLE);
case FingerFilter.ring:
return(Finger.FingerType.TYPE_RING);
case FingerFilter.pinky:
return(Finger.FingerType.TYPE_PINKY);
default:
throw new System.NotSupportedException("Error in HandProperties.cs: An out of bounds enum value " + ((int)finger).ToString() + " was supplied.");
return(Finger.FingerType.TYPE_THUMB); // all thumbs, lol
}
}
void OnFingertipTriggerExit(FingertipData fingertipData)
{
for (int i = 0; i < FingertipsInCollisionBounds.Count; i++)
{
int knownID = FingertipsInCollisionBounds[i].GetInstanceID();
int candidateID = fingertipData.Owner.GetInstanceID();
FingerFilter knownFilter = FingerTipFilters[i];
FingerFilter candidateFilter = fingertipData.finger;
if (knownID == candidateID)
{
FingertipsInCollisionBounds.RemoveAt(i);
FingerTipFilters.RemoveAt(i);
fingerDots.RemoveAt(i);
if (FingertipsInCollisionBounds.Count == 0)
{
CancelHover();
}
}
}
}
void OnFingertipTriggerEnter(FingertipData fingertipData)
{
bool acceptFingertip = false;
if ((fingertipData.finger == FingerFilter.index) && (RespondToIndex))
{
acceptFingertip = true;
}
if ((fingertipData.finger == FingerFilter.middle) && (RespondToMiddle))
{
acceptFingertip = true;
}
if ((fingertipData.finger == FingerFilter.thumb) && (RespondToThumb))
{
acceptFingertip = true;
}
if (acceptFingertip)
{
if (FingertipsInCollisionBounds.Count == 0)
{
HandModel = fingertipData.HandModel;
}
else
{
// check incoming hand model to make sure it matches the existing one.
int oldHandModelID = HandModel.GetInstanceID();
int newHandModelID = fingertipData.HandModel.GetInstanceID();
if (oldHandModelID != newHandModelID)
{
Debug.Log("Tried using two different hands at once to push a button. Ignoring second hand.");
return;
}
else
{
int candidateID = fingertipData.Owner.GetInstanceID();
FingerFilter candidateFilter = fingertipData.finger;
for (int i = 0; i < FingertipsInCollisionBounds.Count; i++)
{
FingerFilter knownFilter = FingerTipFilters[i];
int knownID = FingertipsInCollisionBounds[i].GetInstanceID();
if ((knownID == candidateID) || (knownFilter == candidateFilter))
{
Debug.Log("Fingertip exists already, why wasn't it removed?");
return;
}
}
}
}
FingertipsInCollisionBounds.Add(fingertipData.Owner);
FingerTipFilters.Add(fingertipData.finger);
fingerDots.Add(0);
if (FingertipsInCollisionBounds.Count == 1)
{
Hover();
}
}
}
