private void SetUpObjects()
    {
        gameStatus = GameStatus.Starting;
        OnHealthUpdate(Player.MaxHealth);
        asteroidSpawner.SetConfiguration(LevelCreator.Instance.GetCurrentSpawnConfig());

        // player events
        Player.OnHealthUpdate += OnHealthUpdate;
        Player.OnWin          += OnPlayerWin;
        Player.OnLose         += OnPlayerLose;
    }