public void GameOver()
        {
            world.ClearBullets();
            world.ClearEnemys();
            world.Player.HealFullHealth();
            world.Powers.Clear();

            menu = true;
            spawner = null;
        }
 public void NewGame()
 {
     menu = false;
     spawner = new Spawner(world);
     scoreLerp = 0;
 }