void OnMouseDown()
{
if (EventSystem.current.IsPointerOverGameObject())
{
return;
}
if (getBoard().boardMatrix[posX, posY] != null)
{
Orb currentOrb = getBoard().boardMatrix[posX, posY] as Orb;
if (currentOrb)
{
currentOrb.OnMouseDown();
return;
}
}
getBoard().NodeClicked(this);
}