class Scene(object):
    def enter(self):
        pass


class Engine(object):
    def __init__(self, scene_map):
        pass
    
    def play(self):
        pass

    
class Death(Scene):
    def enter(self):
        pass

    
class CentralCorridor(Scene):
    def enter(self):
        pass

    
class LaserWeaponArmory(Scene):
    def enter(self):
        pass

    
class TheBridge(Scene):
    def enter(self):
        pass

    
class EscapePod(Scene):
    def enter(self):
        pass

    
class Map(object):
    def __init__(self, start_scene):
        pass

    def next_scene(self, scene_name):
        pass

    def opening_scene(self):
        pass

    
a_map = Map('central_corridor')
a_game = Engine(a_map)
a_game.play()