private void OnCollisionEnter2D(Collision2D col)
    {
        int damage = speed * 10;                                                                                                                              // Set damage based on asteroid speed

        col.gameObject.GetComponent <Rigidbody2D>().AddForce((col.collider.ClosestPoint(transform.position) - (Vector2)transform.position).normalized * 300); // Use amazing linear algebra to push object away from asteroid
        SpaceObject obj = col.gameObject.GetComponent <SpaceObject>();

        obj.StartCoroutine(obj.Flash(Color.red, 0.075f));

        if (col.gameObject.tag == "Player")                                                    // If hitting player
        {
            GameSystem.instance.soundManager.PlayOneShot(GameSystem.instance.PlayerSounds[8]); // Play sound effect
            Player player = col.gameObject.GetComponent <Player>();
            player.DecreaseHealthShield(damage);
        }
        else
        {
            col.gameObject.GetComponent <SpaceObject>().hp -= damage;
        }
    }