/// <summary>
/// Get pointing direction if the hand is pointing a direction, relative to the controller.
/// </summary>
/// <param name="HandID">Hand ID</param>
/// <returns>Pointing direction vector for the given hand or null if it does not exist or point in a direction</returns>
public Vector3?PointingDirection(int HandID = 0)
{
int Fingers = ExtendedFingers(HandID);
if (((Fingers == 1 || Fingers == 2)) && LastFrame.Hands.Count > HandID)
{
foreach (Finger CheckedFinger in LastFrame.Hands[HandID].Fingers)
{
if (CheckedFinger.IsExtended)
{
Vector TipPos = CheckedFinger.Bone(Bone.BoneType.TYPE_DISTAL).Basis.translation,
PreTip = CheckedFinger.Bone(Bone.BoneType.TYPE_INTERMEDIATE).Basis.translation;
return(new Vector3(TipPos.x - PreTip.x, TipPos.y - PreTip.y, TipPos.z - PreTip.z).normalized);
}
}
}
return(null);
}
/// <summary>
/// Get a hand's rotation by averaging where each finger's base points.
/// </summary>
/// <param name="HandID">Hand ID</param>
/// <returns>Hand rotation</returns>
public Quaternion?HandRotation(int HandID = 0)
{
if (LastFrame.Hands.Count > HandID)
{
Vector3 Pointing = Vector3.zero;
foreach (Finger CheckedFinger in LastFrame.Hands[HandID].Fingers)
{
if (CheckedFinger.Type != Finger.FingerType.TYPE_THUMB)
{
Vector Base = CheckedFinger.Bone(CheckedFinger.IsExtended ? Bone.BoneType.TYPE_PROXIMAL : Bone.BoneType.TYPE_METACARPAL).Basis.translation,
End = CheckedFinger.Bone(CheckedFinger.IsExtended ? Bone.BoneType.TYPE_INTERMEDIATE : Bone.BoneType.TYPE_PROXIMAL).Basis.translation;
Pointing += new Vector3(End.x - Base.x, End.y - Base.y, End.z - Base.z);
}
}
if (Pointing != Vector3.zero)
{
Vector PalmNormal = LastFrame.Hands[HandID].PalmNormal;
Vector3 Forward = Quaternion.LookRotation(Pointing, Vector3.up).eulerAngles;
Vector3 Normal = Quaternion.FromToRotation(Vector3.up, new Vector3(PalmNormal.x, PalmNormal.y, PalmNormal.z)).eulerAngles;
return(Quaternion.Euler(-Forward.x, -Forward.y, -Normal.z));
}
}
return(null);
}
