private void PlaceDefender(Vector2 spawnPosition)
{
//TODO make more generic
int defenderCost = _defender.GetResourcesCost();
if (defenderCost <= _resourceDisplay.GetResourcesAmount())
{
_resourceDisplay.RemoveResources(defenderCost);
Defender defenderToSpawn = Instantiate(_defender, spawnPosition, transform.rotation);
// De-select the defender from the list so the user has to click it again
_defender = null;
}
}