python - 文本冒险游戏 bool 变量对我不起作用

Question

我的文字冒险游戏有点问题。这个想法是从客厅开始，走到地下室拿 key ，当你再次进入客厅时你应该赢了。当我执行我的代码时，它只是让我进入房间， bool 值应该告诉 if 语句 has_key = true 但它总是不起作用。有什么想法吗？

def welcomeMessage():
    print "Welcome to my game!!"

def winnerMessage():
    print "You're a winner!! Congratulations!!"
    userQuit()

def userQuit(): 
    print "Thanks for playing!"

def living_room():
    # This part isn't executing (Boolean doesn't work here)
    # I want the if statement to execute, not the else statement
    if has_key == True:
        winnerMessage()
        userQuit()
    else: 
        print ("\nYou are in the living room. The paint from the walls is tearing off."
        +" There is a door near you, but it seems to be locked. To your west is the"
        +" kitchen, where you can eat some tasty snacks and to your south is a bedroom. ")
        direction = raw_input("Which direction would you like to go? (W)est or (S)outh? You also have the option to (Q)uit. ")
        if direction == "W":
            kitchen()
        elif direction == "S":
            bed_room()
        elif direction == "N":
            print "Sorry, you can't go north here."
            living_room()
        elif direction == "E":
            print "Sorry, you can't go east here."
            living_room()
        elif direction == "Q":
            userQuit()
        else:
            print "Sorry, that's not a valid direction."
            living_room()


def kitchen():
    print ("\nYou are in the kitchen. The water from the sink is slightly running. All of the"
    +" cupboards in the kitchen have been left open, like someone has searched through them."
    +" To your south is the dining room, and to your east is the living room. ")
    direction = raw_input("Which direction would you like to go? (S)outh or (E)ast? You also have the option to (Q)uit. ")
    if direction == "S":
        dining_room()
    elif direction == "E":
        living_room()
    elif direction == "N":
        print "Sorry, you can't go north here."
        kitchen()
    elif direction == "W":
        print "Sorry, you can't go west here."
        kitchen()
    elif direction == "Q":
        userQuit()  
    else:
        print "Sorry, that's not a valid direction."
        kitchen()


def bed_room():
    print ("\nYou are in the bedroom. One of the windows in the room is slightly ajar. The other window"
    +" is shattered with a brick laying on the floor next to it. To your west is the dining room and"
    +" to your north is the living room.")
    direction = raw_input("Which direction would you like to go? (W)est or (N)orth? You also have the option to (Q)uit. ")  
    if direction == "W":
        dining_room()
    elif direction == "N":
        living_room()
    elif direction == "E":
        print "Sorry, you can't go east here."
        bed_room()
    elif direction == "S":
        print "Sorry, you can't go south here."
        bed_room()
    elif direction == "Q":
        userQuit()
    else:
        print "Sorry, that's not a valid direction."
        bed_room()

def dining_room():
    print ("\nYou are in the dining room. It is very hard to see in here due to the dim lighting. You notice a staircase is the"
    +" in the center of the room. To your north is the kitchen, and to your east is the bedroom.")
    direction = raw_input("Which direction would you like to go? (N)orth or (E)ast or go (D)own the staircase? You also have the option to (Q)uit. ")
    if direction == "N":
        kitchen()
    elif direction == "E":
        bed_room()
    elif direction == "D":
        basement()
    elif direction == "S":
        print "Sorry, you can't go south here."
        dining_room()
    elif direction == "W":
        print "Sorry, you can't go west here."
        dining_room()
    elif direction == "Q":
        userQuit()
    else:
        print "Sorry, that's not a valid direction."
        dining_room()

def basement():
    print ("\nYou are now in the basement. A cloud of dust passes by you and makes it hard to breath. You move away from the area"
    +" and you notice a key on the floor. You pick up the key and hold onto it. You may use it for later. ")
    direction = raw_input("Press U to go upstairs. You also have the option to (Q)uit. ")
    if direction == "U":
        has_key = True
        dining_room()
    elif direction == "Q":
        userQuit()
    else:
        print "Sorry, the only place you can go is back upstairs."
        basement()

welcomeMessage()
has_key = False
living_room()

Answer 1

必须告诉 Python 您的 has_key 变量是全局类型:

def basement():
    global has_key
    ...
    if direction == "U":
        has_key = True

---

稍作重写，您可以使用 message passing控制玩家当前所在的位置。

因此，不是调用 living_room() 函数并让它通过从内部调用该函数来控制玩家的去向，living_room 函数可以返回您的“游戏循环”接下来应该调用的函数:

def game_loop():
    first_room = living_room

    next_room = first_room()
    while callable(next_room):
        next_room = next_room()

典型的游戏代码看起来比你的更像这样。它有几个优点，首先是涉及的递归较少，因此“堆栈”不会那么深。其次，它允许您在房间之间应用一些通用逻辑，例如跟踪玩家去过的地方。