private void UpdatePinch()
{
bool pinchTriggered = false;
bool releaseTriggered = false;
float pinchStrength = 0;
//Get grab position
Vector3 thumbPos = leapManager.GetFingertipWorldPosition(0);
Vector3 indexPos = leapManager.GetFingertipWorldPosition(1);
grabPosition = thumbPos + (indexPos - thumbPos) / 2f;
//Get pinch strength
pinchStrength = leapManager.GetHandPinchStrength();
//if pinch strength is high enough
if (pinchStrength >= pinchThreshold)
{
releaseCounter = 3; //Reset counter
pinchTriggered = true;
}
else
{
if (releaseCounter > 0)
{
releaseCounter--; //Decrease counter
}
else
{
releaseTriggered = true;
}
}
if (pinchTriggered && !pinching)
{
pinching = true;
OnPinch(grabPosition);
}
if (releaseTriggered && pinching)
{
pinching = false;
OnRelease();
}
}
private void UpdateActivity()
{
//Drop existing activity
activity = Mathf.Min(1, activity - 0.05f);
if (activity < 0.01f)
{
//And attacker
activityAttacker = Mathf.Min(1, activityAttacker - 0.01f);
}
//For distance between palm and fingertips
float fingerActivity = 0;
for (int i = 0; i < fingerCount; i++)
{
fingerBendPrevious [i] = fingerBend [i];
fingerBend [i] = (leapManager.GetPalmPosition() - leapManager.GetFingertipPosition(i));
fingerActivity += (fingerBend [i] - fingerBendPrevious [i]).magnitude;
}
//Filter out low activity
fingerActivity = Mathf.Clamp(fingerActivity - 0.01f, 0, 5f);
//For pinch strength (also to determine activity)
float pinchActivity = 0;
float grab = leapManager.GetHandPinchStrength();
pinchActivity += Mathf.Abs(grabPrev - grab);
grabPrev = grab;
//Filter out low activity
fingerActivity = Mathf.Clamp(fingerActivity - 0.01f, 0, 10f);
//Add all activity and subtract attacker
activity = Mathf.Clamp(activity + pinchActivity / 5 + fingerActivity / 20 - activityAttacker, 0, 1f);
//Update attacker
activityAttacker = Mathf.Clamp(activityAttacker + activity / 20, 0, 5f);
}