public void clear()
{
// is it a leaf?
if (level == QuadTreeTouchEvent.DEEP_LEVEL_THRESHOLD)
{
leafContent.clear();
return;
}
// while not being a leaf then continue cleaning quad nodes
if (topLeft != null)
{
topLeft.clear();
}
if (topRight != null)
{
topRight.clear();
}
if (botRight != null)
{
botRight.clear();
}
if (botLeft != null)
{
botLeft.clear();
}
}
void OnApplicationQuit()
{
dynamicListeners.clear();
staticQuadTree.clear();
#if UNITY_EDITOR
#else
// NOTE: to avoid !IsPlayingOrAllowExecuteInEditMode error in console
instance = null;
#endif
}