public static float ComputeHandGrabScore(IHandGrabber grabber,
IHandGrabbable grabbable, out GrabTypeFlags handGrabTypes)
{
HandGrabAPI api = grabber.HandGrabApi;
handGrabTypes = GrabTypeFlags.None;
float handGrabScore = 0f;
if (SupportsPinch(grabber, grabbable))
{
float pinchStrength = api.GetHandPinchScore(grabbable.PinchGrabRules, false);
if (pinchStrength > handGrabScore)
{
handGrabScore = pinchStrength;
handGrabTypes = GrabTypeFlags.Pinch;
}
}
if (SupportsPalm(grabber, grabbable))
{
float palmStrength = api.GetHandPalmScore(grabbable.PalmGrabRules, false);
if (palmStrength > handGrabScore)
{
handGrabScore = palmStrength;
handGrabTypes = GrabTypeFlags.Palm;
}
}
return(handGrabScore);
}
public static bool ComputeShouldSelect(IHandGrabber grabber,
IHandGrabbable grabbable, out GrabTypeFlags selectingGrabTypes)
{
if (grabbable == null)
{
selectingGrabTypes = GrabTypeFlags.None;
return(false);
}
HandGrabAPI api = grabber.HandGrabApi;
selectingGrabTypes = GrabTypeFlags.None;
if (SupportsPinch(grabber, grabbable) &&
api.IsHandSelectPinchFingersChanged(grabbable.PinchGrabRules))
{
selectingGrabTypes |= GrabTypeFlags.Pinch;
}
if (SupportsPalm(grabber, grabbable) &&
api.IsHandSelectPalmFingersChanged(grabbable.PalmGrabRules))
{
selectingGrabTypes |= GrabTypeFlags.Palm;
}
return(selectingGrabTypes != GrabTypeFlags.None);
}
public void InjectAllHandGrabInteractor(HandGrabAPI handGrabApi,
IHand hand, Rigidbody rigidbody, GrabTypeFlags supportedGrabTypes, HandWristOffset gripPoint)
{
InjectHandGrabApi(handGrabApi);
InjectHand(hand);
InjectRigidbody(rigidbody);
InjectSupportedGrabTypes(supportedGrabTypes);
InjectGripPoint(gripPoint);
}
private static bool SupportsPalm(IHandGrabber grabber,
GrabTypeFlags grabTypes)
{
return((grabber.SupportedGrabTypes & GrabTypeFlags.Palm) != 0 &&
(grabTypes & GrabTypeFlags.Palm) != 0);
}
public void InjectSupportedGrabTypes(GrabTypeFlags supportedGrabTypes)
{
_supportedGrabTypes = supportedGrabTypes;
}
private bool CanSnapToPinchPoint(HandGrabInteractable interactable, GrabTypeFlags grabTypes)
{
return _pinchPoint != null
&& !interactable.UsesHandPose()
&& (grabTypes & GrabTypeFlags.Pinch) != 0;
}
