void Die()
{
StopCoroutine(firingCoroutine);
playerSpawner.HandleDeath();
GameObject explosion = Instantiate(
explosionPrefab,
transform.position,
transform.rotation) as GameObject;
Destroy(explosion, explosionTime);
AudioSource.PlayClipAtPoint(deathSound, Camera.main.transform.position, 1);
Destroy(gameObject);
}