void SpawnEnemyShips()
{
GameObject enemies = new GameObject("Enemies");
for (int i = 0; i < 20; i++){
Vector3 where = new Vector3(Random.Range(-10.0F, 10.0F), Random.Range(-10.0F, 10.0F), 0);
GameObject what = enemyPrefab;
Quaternion whatRotation = Quaternion.identity;
GameObject enemy = (GameObject)Instantiate(what, where, whatRotation);
enemy.GetComponent<SpriteRenderer>().color = new Color(Random.Range(0f, 1f), 0, 0, 1);
enemy.transform.parent = enemies.transform;
enemy.name = "Enemy" + i;
}
}