private IEnumerator RandomRespawn()
{
float secs = UnityEngine.Random.Range(minRespawnT, maxRespawnT);
yield return(new WaitForSeconds(secs));
Enemy1 enem = GameObject.Instantiate(enemy, transform.position, new Quaternion(0, 0, 0, 0)).GetComponent <Enemy1>();
enem.SetSpawnPoint(this);
enem.SetSpawnPos(transform.position);
}