void Update()
{
if (isBuilding)
{
if (Input.GetMouseButtonUp(0))
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit))
{
Tile tile = hit.collider.GetComponentInParent <Tile>();
if (tile != null)
{
factory.BuyUnit(tile);
ExitSpawnMode();
}
}
}
}
}
