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()


