類是場景。試圖重複現場，如果答案是不考慮

Question

我認爲我題爲非常糟糕的問題，但我不能真正考慮更好的東西。對不起，（另外，英語不是我的第一語言，所以對我的語法犯罪另一個抱歉）。

在「Learn Python The Hard Way」的前45頁，我必須製作一些文字遊戲，比如每個房間使用一個課程。我使用ex44中的代碼（幾乎與下面的代碼相同）作爲原型，因爲我真的無法想象三條最終線條是如何工作的並與一切事物互動。對於像我這樣的編程新手來說，我覺得太多了，我甚至試圖在每一步之後逐行寫下來。

此外，我還嘗試使變量current_scene因此，如果您在if變量中引入了未考慮的答案，請重複該場景。

from sys import exit 
from random import randint 


class Engine(object): 

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

    def play(self): 
     current_scene = self.map_scenes.open_scene() 

     while True: 
      print "\n---------" 
      next_scene_name = current_scene.text() 
      current_scene = self.map_scenes.next_scene(next_scene_name) 


class Scene(object): 

    def texto(self): 
     print "Parent class for scenes" 

     exit(1) 


class Death(Scene): 

    types = [ 
     "You're death.", 
     "You pass away." 
    ] 

    def text(self): 
     print Death.types[randint(0, len(self.types)-1)] 

     exit(1) 


class Again(Scene): 

    repeat = [ 

     "Can you repeat?", 
     "Try again.", 
     "One more time." 
    ] 

    def text(self): 
     print Again.repeat[randint(0, len(self.repeat)-1)] 
     print current_scene  # =/ 


class Intro(Scene): 

    def text(self): 

     print "The intro scene" 

     return 'start' 


class Start(Scene): 

    def text(self): 

     print "The first scene" 
     print "Where do you want to go?" 
     next = raw_input("> ") 

     if next == "bear": 

      return 'bear' 

     elif next == "valley": 

      return 'valley' 

     elif next == "death": 

      return 'death' 

     else: 

      return 'again' 


class Bear(Scene): 

    def text(self): 

     print "The second scene." 
     print "And so on..." 
     exit(1) 


class Valley(Scene): 

    def text(self): 

     print "Alternative second scene." 
     print "And so on..." 
     exit(1) 


class Map(object): 

    scenes = { 
     'intro': Intro(), 
     'start': Start(), 
     'bear': Bear(), 
     'valley': Valley(), 

     'again': Again(), 
     'death': Death() 
    } 

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

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

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


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

我真的希望我已經解釋了自己的好，我會卡在這個練習了幾天，好像我不這樣做毫無進展。

Answer 1

你將不得不修改Engine.play來處理：

next_scene_name = current_scene.text() 

if next_scene_name in self.map_scenes.scenes: 
    current_scene = self.map_scenes.next_scene(next_scene_name)