ex43.py

from sys import exit
from random import randint


class Scene(object):

    def enter(self):
        print "This scene is not yet configured. Subclass it and implement enter()"
        exit(1)


class Engine(object):

    def __init__(self, scene_map):
        self.scene_map = scene_map

    def play(self):
        current_scene = self.scene_map.opening_scene()
        last_scene = self.scene_map.next_scene('finished')

        while current_scene != last_scene:
            next_scene_name = current_scene.enter()
            current_scene = self.scene_map.next_scene(next_scene_name)

        #be sure to print out the last scene
        current_scene.enter()


class Death(Scene):

    quips = [
        "You died. You kinda suck at this.",
        "Your programming teacher would be proud... if he were smarter.",
        "Such a luser.",
        "I have a small puppy that's better at this."
    ]

    def enter(self):
        print Death.quips[randint(0, len(self.quips)-1)]
        exit(1)

# texts shortened because laziness
class CentralCorridor(Scene):

    def enter(self):
        print "The Gothons of Planet Percal #25 have invaded your ship and "

        action = raw_input("> ")

        if action == "shoot!":
            print "Quick on the draw you yank out your blaster and fire it at"
            return 'death'

        if action == "dodge!":
            print "Like a world class boxer you dodge, weave, slip and slide"
            return 'death'

        if action == "tell a joke":
            print "Lucky for you they made you learn Gothon insults in the"
            return 'laser_weapon_armory'

        else:
            print "DOES NOT COMPUTE!"
            return 'central_corridor'


class LaserWeaponArmory(Scene):

    def enter(self):
        print "You do a dive roll into the Weapon Armory, crouch and scan the"
        code = "%d%d%d" % (randint(1,9), randint(1,9), randint(1,9))
        guess = raw_input("[keypad]> ")
        guesses = 0

        while guess == code:
            print "The container clicks open and the seal breaks, letting"
            return 'the_bridge'
        else:
            print "The lock buzzes one last time and then you hear a sickening"
            return 'death'


class TheBridge(Scene):

    def enter(self):
        print "You burst onto the Bridge with the netron destruct bomb"

        action = raw_input("> ")

        if action == "throw the bomb":
            print "In a panic you throw the bomb at the group of Gothons"
            return 'death'

        elif action == "slowly place the bomb":
            print "You point your blaster at the bomb under your arm"
            return 'escape_pod'

        else:
            print "DOES NOT COMPUTE!"
            return 'the_bridge'


class EscapePod(Scene):

    def enter(self):
        print "You rush through the ship desperately trying to mate it to"

        good_pod = randint(1,5)
        guess = raw_input("[pod #]> ")

        if int(guess) != good_pod:
            print "You jump into pod %s and hit the eject button." % guess
            return 'death'
        else:
            print "You jump into pod %s and hit the eject button." % guess

            return 'finished'


class Finished(Scene):
    def enter(self):
        print "You won! Good job."
        return 'finished'

class Map(object):

    scenes = {
        'central_corridor': CentralCorridor(),
        'laser_weapon_armory': LaserWeaponArmory(),
        'the_bridge': TheBridge(),
        'escape_pod': EscapePod(),
        'death': Death(),
        'finished': Finished(),
    }

    def __init__(self, start_scene):
        self.start_scene = start_scene

    def next_scene(self, scene_name):
        val = Map.scenes.get(scene_name)
        return val

    def opening_scene(self):
        return self.next_scene(self.start_scene)


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