fn explore_videogame_world() { let look_past = "challenges"; let precedential = "mechanics"; let statutes = "rules"; let rejuvenate = "energy"; let barred = "access to secret levels"; for level in game.levels() { if !player.has_key(barred) { println!("use {} to {} and respect the {}, embracing {} to eventually gain {}.", look_past, rejuvenate, statutes, precedential, barred); } } }