private void UpdateTriggeringStatus()
{
Miscellaneous.FindHashSetDifference(_triggeringBodySet, _triggeringBodySetLast,
_triggeringBodyEntered, _triggeringBodyExited);
foreach (ICollisionTriggeringBody bodyEntered in _triggeringBodyEntered)
{
OnTriggerStart(bodyEntered);
}
foreach (ICollisionTriggeringBody bodyExited in _triggeringBodyExited)
{
OnTriggerEnd(bodyExited);
}
_triggeringBodySetLast.Clear();
_triggeringBodySetLast.CopyFrom(_triggeringBodySet);
_triggeringBodySet.Clear();
}
protected override void UpdateTriggeringObject()
{
Miscellaneous.FindHashSetDifference(
TriggeringObjectSet, TriggeringObjectSetLast,
TriggeringObjectEntered, TriggeringObjectExited);
foreach (T objectEntered in TriggeringObjectEntered)
{
OnTriggerStart(objectEntered);
}
foreach (T objectExited in TriggeringObjectExited)
{
OnTriggerEnd(objectExited);
}
TriggeringObjectSetLast.Clear();
TriggeringObjectSetLast.CopyFrom(TriggeringObjectSet);
TriggeringObjectSet.Clear();
}
/// <summary>
/// Update the color of the touched objects. From the latest set of touched objects,
/// it finds which objects just come into contact. The color of these objects will
/// be modified if needed. Then it finds which objects are no longer in contact. The
/// color of these objects will be restored to original.
/// </summary>
/// <param name="touchableSet">Latest set of touched objects.</param>
public void UpdateTouchedObjectColor(HashSet <ITouchable> touchableSet)
{
// Find touchable objects that comes in and the ones left our hand
Miscellaneous.FindHashSetDifference(touchableSet, _lastTouchableSet,
_touchableEnterSetTemp, _touchableExitSetTemp);
// Colorize touchable objects that just come into contact with the hand
foreach (ITouchable touchable in _touchableEnterSetTemp)
{
if (touchable.IndicateColorOnTouching)
{
ChangeTouchableObjectColorUponEnter(touchable);
}
}
// Restore color of the touchable objects that leave the hand
foreach (ITouchable touchable in _touchableExitSetTemp)
{
if (touchable.IndicateColorOnTouching)
{
RestoreTouchableObjectColorUponExit(touchable);
}
}
_lastTouchableSet.Clear();
_lastTouchableSet.CopyFrom(touchableSet);
}
