void OnCollisionEnter(Collision col)
    {
        if (col.gameObject.name == "Planet") //++
        {
            Debug.Log("Collided!");

            if (player.velocity.magnitude >= 6)
            {
                EditorUtility.DisplayDialog("GAME OVER", "You crashed at high speeds!", "Darn heck...", "Ouch oof");
                Time.timeScale = 0;
            }
        }
    }