public void SpawnTower(int LV, Vector3 position)
{
GameObject tower = Instantiate(Resources.Load("Prefab/EnemyPrefabs/TowerLV" + LV)) as GameObject;
mainGame.AddTower(tower);
if (tower != null)
{
tower.transform.position = position;
tower.transform.SetParent(GameObject.Find("Towers").transform);
}
}