// Use this for initialization
    void Start()
    {
        currentLives = startingLives;

        AddLifeEvent    += AddLife;
        RemoveLifeEvent += SubtractLife;

        //unpause if we were paused
        Time.timeScale = 1;
        if (OnLifeAdded != null)
        {
            OnLifeAdded(currentLives);
        }
    }
 private void OnDestroy()
 {
     AddLifeEvent    -= AddLife;
     RemoveLifeEvent -= SubtractLife;
 }