void OnMouseDown()
{
Vector2 selectedDefenderPos = SnapToGrid(CalculateWorldPointOfMouseClick());
GameObject defender = Button.selectedDefender;
int defenderCost = defender.GetComponent <Defender>().starCost;
if (starDisplay.Use(defenderCost) == UIDisplay.Status.SUCCESS)
{
SpawnDefender(selectedDefenderPos, defender);
}
else
{
Debug.Log("Insufficient stars to spawn");
}
}