在python中修改另一個函數

Question

對於python中的在線課程，我正在python中製作一個基本的基於文​​本的冒險遊戲。

現在，我有一個基本的庫存系統通過對布爾如果用戶有一個對象與否，以及有限的物品，如彈藥什麼的整數工作。 下面是庫存系統

def Inventory(self): #The inventory for the game. I don't know how to program it properly, so this is my testing ground. 
#This will hold the boolean values to if the player has the items or not. Another will be used to show the user the items 

    street_clothes = False 
    pistol = False 
    ammo = 0 
    phone = False 

的代碼，這就是我想修改上述

#Eric's apartment 
def Eric_Apartment(self): 

    print "type in grab your gun" 

    action = raw_input("> ") 

    if action == "grab": 
     self.Inventory(CR97) = True 
    # self.CR97_ammo += 15 
    # print CR97_ammo 
    # print self.CR97_ammo 

    exit(1) 

試圖運行這個程序讓我這個錯誤的庫存函數的代碼：

python ex43.py 
File "ex43.py", line 78 
self.Inventory(CR97) = True 
SyntaxError: can't assign to function call 

有什麼我應該做的嗎？我對python很陌生，這是我自己的第一個項目。

下面是完整的代碼，以供參考

from sys import exit #allows the program to use the exit(1) code 
from random import randint #allows the program to use a random number 

class Game(object): 

#quotes that pop up if the person dies, and also defines the start and self variables 
def __init__(self, start): 
    self.quips = [ 
     "You lose!" 
    ] 
    self.start = start 

def Inventory(self): #The inventory for the game. 
#This will hold the boolean values to if the player has the items or not. 

    street_clothes = False 
    pistol = False 
    ammo = 0 
    phone = False 


#this function launches the game, and helps with the room transfer 
def play(self): 
    next = self.start 

    while True: 
     print "\n---------" 
     room = getattr(self, next) 
     next = room() 

#if the user dies, or fails at the game, this is the function that is ran 
def death(self): 
    print self.quips[randint(0, len(self.quips)-1)] 
    exit(1) 

#Welcome screen to the game 
def welcome_screen(self): 
    print " place holder" 
    return 'intro_screen' 

#Intro screen to the game 
def intro_screen(self): 

    print "place holder" 

    action = raw_input("> Press any key to continue ") 

    return 'Eric_Apartment' 

#Eric's apartment 
def Eric_Apartment(self): 

    print "type in grab your gun" 

    action = raw_input("> ") 

    if action == "grab": 
     self.Inventory(CR97) = True 
    # self.CR97_ammo += 15 
    # print CR97_ammo 
    # print self.CR97_ammo 

    exit(1) 

a_game = Game("welcome_screen") 
a_game.play() 

Answer 1

這是一個令人驚訝的不正當的方式去了解它。你爲什麼使用函數來存儲數據？

只需要一個播放器對象和一個庫存數組。

我建議使用對象來模擬物品。很好用於類層次結構。可能有一個基地項目，與子類SingleItem和StackableItem等

Answer 2

除了使用功能，請嘗試使用類 -

class Player: 
    def __init__(self): 
     self.street_clothes = False 
     self.pistol = False 
     self.ammo = 0 
     self.phone = False 
    def give_street_clothes(self): 
     self.street_clothes = True 
    # etc 

不過個人，而不是使用每個項目作爲一個布爾值，我d使用項目清單：

class Player: 
    def __init__(self): 
     self.inventory = [] 
     # add code for ammo/pistol 
    def has_item(self, item): 
     return item in self.inventory 
    def give_item(self, item): 
     self.inventory.add(item) 
    def remove_item(self, item): 
     self.inventory.remove(item) 
    # etc