public IEnumerator SummonEnemy(EnemyAI enemy)
{
enemy.gameObject.SetActive(false);
enemy.SetCoordinates(x, y);
enemy.MovePosition(x, y);
yield return new WaitForSeconds(1.0f);
gameObject.SetActive(true);
yield return new WaitForSeconds(1.0f);
enemy.gameObject.SetActive(true);
gameObject.SetActive(false);
}