文本冒险游戏代码遇KeyError、指令不显示及合规问题求助

背景 #

就职于开发文本类游戏的小型公司，近期提出的文本冒险游戏设计方案获认可，负责开发该游戏。作业核心要求：

• 代码遵循清晰命名规范并添加行内注释
• 必须包含show_instructions和show_status函数
• 仅使用一个字典存储房间及物品信息
  游戏规则：玩家通过命令行指令在房间间移动、收集物品，需在遭遇反派房间前集齐所有物品，每一步需输出游戏状态及物品拾取选项。

当前问题 #

1. 代码不符合作业要求（缺少show_status函数）
2. 运行时触发KeyError回溯错误
3. 编写的游戏指令文本未正常显示

完整错误代码 #

def show_instructions():
    # System displays a menu and commands for the user
    print("You're waking up...")
    print("*Apple Watch Alarm Starts Blasting*")
    print("You look down to check why the watch is going off, you then see an amber alert.")
    print("*WARNING: STATE-WIDE PANDEMIC VIRUS, PLEASE SEEK SHELTER AND AVOID CONTACT WITH THE INFECTED!*")
    print("While gaining your consciousness back bit by bit, you notice your self in the middle of a Hollywood Hills "
          "mansion's bathroom, with nothing but a distant echo of grunting and moaning you soon realize a zombie "
          "outbreak has occurred!")
    print("In order to make it out successfully from the infected mansion you must collect 5 items and your friend "
          "David who have all been scattered across the mansion during the party.")
    print("Move Commands: go South, go North, go East, go West")
    print("Add to Inventory/Grab: get 'item name'\n")


# Main function
def main():
    # Calling function to display instructions
   show_instructions()

    # A dictionary for the zombie survival text game
    # This dictionary links all 8 rooms to one another
    rooms = {'Bathroom' : { 'West' : 'Hallway'}, # First Room
            'Hallway': { 'East': 'Bathroom', 'South': 'Living Room', 'item' : 'Backpack'},
            'Living Room': { 'North': 'Hallway', 'West': 'Backyard', 'South': 'Office', 'East': 'Kitchen', 'item': 'Gun'},
            'Backyard': { 'East': 'Living Room', 'item': 'Map'}, # Exit room
            'Office': { 'North': 'Living Room', 'East': 'Garage', 'item': 'Ammo'},
            'Garage': { 'West': 'Office', 'item': 'David'},
            'Kitchen': { 'West': 'Living Room', 'North': 'Basement', 'item': 'Long steak knife'},
            'Basement': { 'South': 'Kitchen', 'item': 'Zombies'}, # Avoid
            }
        
    # Displays games starting room
    current_room = 'Bathroom'
    # System creates an empty list called "inventory"
    inventory = []
    
    # A loop to simulate the player moving between rooms
    while True:
        # If current_room is Backyard then break the loop
        if current_room == 'Backyard':
            print("\nYou are in the", current_room)
            print("You see the Exit!",)
            if len(inventory) == 6:
                print("\nCongrats! You have collected all the items and your friend David and have made your way out the infected mansion!")
            else:
                print("\nYou don't have everything you need, you won't survive out there... GAME RESTARTING!")
            break
    
        # Printing the current_room
        print("\nYou are in the", current_room)
    
        # Prompts user to pickup the item within the room
        if rooms[current_room]['item'] != None:
            print("You see a", rooms[current_room]['item'])
            opinion = input("get "+rooms[current_room]['item']+"?(Y/N:").upper()
            # Validating the users input
            while opinion not in ['Y','N']:
                print ("Invalid input. Try again")
                opinion = input("Get "+rooms[current_room]['item']+"?(Y/N): ").upper()
            if opinion == 'Y':
                inventory.append(rooms[current_room]['item'])
                rooms[current_room]['item'] = None
    
        else:
            print("The item in this room has already been grabbed or there was nothing in here")
    
        # System prints inventory
        print("Inventory:", inventory)
    
        # System grabs users input for move directions
        direction = input("Direction to move?(South,North,East,West): ").title()
        directions = list(rooms[current_room].keys())
        directions.remove('item')
        # Confirming users direction
        while direction not in directions:
            print("Invalid direction from "+current_room+". Try another move")
            direction = input("Direction to move?(East,West,North,South): ").title()
    
        # System develops the next_room
        next_room = rooms[current_room][direction]
        print("You have now moved to",next_room)
        print("-------------------------------------------")
    
        # Updating current_room
        current_room = next_room

# Printing the games end message
print("\nThank you for playing Zombie Mansion Survival!")

# Calling main function
main()

1. 修复KeyError错误 #

错误原因：初始房间Bathroom未定义item键，代码尝试访问rooms[current_room]['item']时触发KeyError。
解决方法：给所有房间统一添加item键，无物品时设为None：

rooms = {
    'Bathroom': {'West': 'Hallway', 'item': None},  # 初始房间无物品
    'Hallway': {'East': 'Bathroom', 'South': 'Living Room', 'item': 'Backpack'},
    'Living Room': {'North': 'Hallway', 'West': 'Backyard', 'South': 'Office', 'East': 'Kitchen', 'item': 'Gun'},
    'Backyard': {'East': 'Living Room', 'item': 'Map'},  # 出口房间
    'Office': {'North': 'Living Room', 'East': 'Garage', 'item': 'Ammo'},
    'Garage': {'West': 'Office', 'item': 'David'},
    'Kitchen': {'West': 'Living Room', 'North': 'Basement', 'item': 'Long steak knife'},
    'Basement': {'South': 'Kitchen', 'item': 'Zombies'}  # 反派房间
}

2. 修复指令未显示问题 #

错误原因：main()函数中调用show_instructions()的语句存在缩进错误（多了一个空格），Python解释器无法识别为函数内代码。
解决方法：修正缩进，确保与函数内其他代码对齐：

def main():
    # 调用指令显示函数
    show_instructions()  # 修正缩进至与后续代码一致

3. 满足作业要求 #

添加show_status函数 #

将分散的状态打印逻辑封装成函数，符合作业要求：

def show_status(current_room, rooms, inventory):
    """显示当前游戏状态：所在房间、物品信息、库存"""
    print("\n===== 当前状态 =====")
    print(f"你现在在: {current_room}")
    room_item = rooms[current_room]['item']
    if room_item and room_item != 'Zombies':
        print(f"你看到了: {room_item}")
    elif room_item == 'Zombies':
        print("警告！房间里有丧尸！")
    else:
        print("这个房间已经没有可收集的物品了")
    print(f"当前库存: {inventory if inventory else '空'}")
    print("===================")

规范命名与注释 #

• 变量采用蛇形命名法（如current_room、inventory），保持风格统一
• 为函数和关键代码块添加清晰中文注释
• 确保仅使用rooms一个字典存储所有房间及物品信息

完善反派房间逻辑 #

添加进入丧尸房间的失败判定，符合“遭遇反派前集齐物品”的规则：

# 在循环中添加反派房间判断
if current_room == 'Basement':
    print("\n你闯进了丧尸房间！被丧尸包围了... GAME OVER!")
    break

完整修正后代码 #

def show_instructions():
    """显示游戏操作指南和背景故事"""
    print("你醒了过来...")
    print("*苹果手表警报疯狂响起*")
    print("你低头查看警报原因，发现是一条紧急预警。")
    print("*警告：全州爆发丧尸病毒，请立即寻找避难所，避免接触感染者！*")
    print("意识逐渐清醒后，你发现自己在好莱坞山豪宅的浴室里，远处传来低沉的嘶吼声——丧尸爆发了！")
    print("要成功逃离这座被感染的豪宅，你需要收集5件物品和你的朋友大卫，他们都在派对中散落在豪宅各处。")
    print("移动指令：go South, go North, go East, go West")
    print("收集物品：get '物品名称'\n")


def show_status(current_room, rooms, inventory):
    """显示当前游戏状态：所在房间、物品信息、库存"""
    print("\n===== 当前状态 =====")
    print(f"你现在在: {current_room}")
    room_item = rooms[current_room]['item']
    if room_item and room_item != 'Zombies':
        print(f"你看到了: {room_item}")
    elif room_item == 'Zombies':
        print("警告！房间里有丧尸！")
    else:
        print("这个房间已经没有可收集的物品了")
    print(f"当前库存: {inventory if inventory else '空'}")
    print("===================")


def main():
    # 显示游戏指南
    show_instructions()

    # 房间字典：包含房间连接关系和物品信息（符合单字典要求）
    rooms = {
        'Bathroom': {'West': 'Hallway', 'item': None},  # 初始房间
        'Hallway': {'East': 'Bathroom', 'South': 'Living Room', 'item': 'Backpack'},
        'Living Room': {'North': 'Hallway', 'West': 'Backyard', 'South': 'Office', 'East': 'Kitchen', 'item': 'Gun'},
        'Backyard': {'East': 'Living Room', 'item': 'Map'},  # 出口房间
        'Office': {'North': 'Living Room', 'East': 'Garage', 'item': 'Ammo'},
        'Garage': {'West': 'Office', 'item': 'David'},
        'Kitchen': {'West': 'Living Room', 'North': 'Basement', 'item': 'Long steak knife'},
        'Basement': {'South': 'Kitchen', 'item': 'Zombies'}  # 反派房间
    }

    current_room = 'Bathroom'
    inventory = []

    while True:
        # 触发出口逻辑
        if current_room == 'Backyard':
            print("\n你来到了后院，看到了出口！")
            if len(inventory) == 6:
                print("恭喜！你集齐了所有物品和大卫，成功逃离了被感染的豪宅！")
            else:
                print("你还没集齐所有必需品，出去也无法存活... 游戏重启！")
            break

        # 触发反派房间失败逻辑
        if current_room == 'Basement':
            print("\n你闯进了丧尸房间！被丧尸包围了... GAME OVER!")
            break

        # 显示当前状态
        show_status(current_room, rooms, inventory)

        # 物品收集逻辑
        room_item = rooms[current_room]['item']
        if room_item and room_item != 'Zombies':
            while True:
                choice = input(f"是否收集 {room_item}？(Y/N): ").upper()
                if choice in ['Y', 'N']:
                    break
                print("输入无效，请输入Y或N")
            if choice == 'Y':
                inventory.append(room_item)
                rooms[current_room]['item'] = None
                print(f"你收集了 {room_item}！")

        # 移动逻辑
        while True:
            direction = input("请输入移动方向(South/North/East/West): ").title()
            # 获取当前房间的有效移动方向（排除item键）
            valid_directions = [key for key in rooms[current_room].keys() if key != 'item']
            if direction in valid_directions:
                break
            print(f"从{current_room}无法向{direction}移动，请重新输入")

        # 更新当前房间
        current_room = rooms[current_room][direction]
        print(f"\n你移动到了 {current_room}")
        print("-------------------------------------------")

    print("\n感谢游玩《丧尸豪宅求生》！")


# 启动游戏
if __name__ == "__main__":
    main()

内容的提问来源于stack exchange，提问作者phendo florez