private void OnCollisionEnter2D(Collision2D collision)
{
/*
* // if the bullet is a player bullet and it hits the enemy, subtract health
* if (gameObject.tag == "PlayerBullet")
* if (collision.gameObject.tag == "Enemy")
* collision.gameObject.GetComponent<EnemyManager>().Health-= PlayerFire.instance.gun.WeaponDamage;
*/
// create an explosion and destroy the bullet
StartCoroutine(Effects.BulletHitEffect(gameObject));
}