private void CheckForPinchAction()
{
candidateHands.Clear();
foreach (var controller in manager.interactionControllers)
{
var hand = controller.intHand;
if (!controller.isTracked || hand == null)
{
continue;
}
if (hand.NoFistPinchStrength() > pinchActivateThreashold)
{
candidateHands.Add(hand);
}
}
if (candidateHands.Count == 0)
{
return;
}
var pinchResult = DetermineBestPinchable(candidateHands);
if (pinchResult.Item1 != null)
{
pinchingHand = pinchResult.Item1;
pinchedObject = pinchResult.Item2;
pinchedObject.BeginPinch(pinchingHand);
}
}
void Update()
{
if (pinchingHand == null || pinchedObject == null)
{
CheckForPinchAction();
return;
}
if (!pinchingHand.isTracked)
{
pinchedObject.EndPinch(pinchingHand);
pinchedObject = null;
pinchingHand = null;
}
else
{
if (pinchingHand.leapHand.PinchStrength < pinchDeactivateThreashold)
{
pinchedObject.EndPinch(pinchingHand);
pinchedObject = null;
pinchingHand = null;
}
else
{
var pos = pinchingHand.leapHand.GetPinchPosition();
pinchedObject.UpdatePinch(pinchingHand);
}
}
}
private Tuple <InteractionHand, IPinchable> DetermineBestPinchable(IEnumerable <InteractionHand> hands)
{
IPinchable best = null;
InteractionHand bestHand = null;
float minDistance = float.MaxValue;
foreach (var hand in hands)
{
var pos = hand.leapHand.GetPinchPosition();
foreach (var pinchComponent in pinchables)
{
pinchComponent.CheckPinchStart(hand, out bool isValid, out float distance);
if (isValid && distance < minDistance)
{
minDistance = distance;
best = pinchComponent;
bestHand = hand;
}
}
}
return(Tuple.Create <InteractionHand, IPinchable>(bestHand, best));
}
public static void DeregisterPinchable(IPinchable pinchable)
{
pinchables.Remove(pinchable);
}
public static void RegisterPinchable(IPinchable pinchable)
{
pinchables.Add(pinchable);
}
public PinchingGRConfiguration(bool exclusive, IPinchable clientWindow, bool relativeScaling)
: base(exclusive)
{
m_clientWindow = clientWindow;
m_relativeScaling = relativeScaling;
}
public PinchingGR(GRConfiguration configuration)
: base(configuration)
{
PinchingGRConfiguration conf = (PinchingGRConfiguration)configuration;
m_clientWindow = conf.ClientWindow;
m_relativeScaling = conf.RelativeScaling;
}