文本类游戏物品拾取功能实现求助（Python）

你的get_item函数存在逻辑错误，导致Python报错找不到item变量，以下是具体问题和修复方案：

问题分析 #

• 函数参数item未传递有效数据，混淆了字典键名与变量名
• 判断逻辑错误：current_room是房间名称字符串，需检查当前房间的字典数据中是否包含'item'键，而非item变量是否在current_room中
• 未处理拾取后移除房间物品的逻辑，会导致重复拾取

修复后的完整代码 #

rooms = {
    'Entrance': {'west': 'Catacombs A', 'north': 'Main Hall'},
    'Catacombs A': {'east': 'Entrance', 'item': 'Lesser Artifact'},
    'Main Hall': {'north': 'Great Hall', 'east': 'Catacombs B', 'south': 'Entrance', 'west': 'Necron Tomb',
                  'item': 'Dog Tags'},
    'Necron Tomb': {'east': 'Main Hall', 'item': 'Supplies'},
    'Catacombs B': {'west': 'Main Hall', 'north': 'Storage Room', 'item': 'Lesser Artifact'},
    'Storage Room': {'south': 'Catacombs B', 'item': 'Supplies'},
    'Great Hall': {'east': 'Repair Hub', 'south': 'Main Hall', 'item': 'Dog Tags'},
    'Repair Hub': {'west': 'Great Hall', 'item': 'Necron Lord'}  # Villain
}

current_room = 'Entrance'
inventory = []

print('You are a member of a squad of Ultramarines that has been tasked with retrieving 6 items from a '
      'Necron facility on the orbiting planet before reaching the Necron Lord. You and your brothers breach the entrance, which way do you go first?')


def move_rooms(current_room, direction):
    return rooms[current_room][direction]


def get_item(current_room_name, inventory):
    current_room_data = rooms[current_room_name]
    if 'item' in current_room_data:
        item = current_room_data['item']
        inventory.append(item)
        del current_room_data['item']
        print(f'You picked up the {item}!')
        print(f'Current inventory: {inventory}')
    else:
        print('There is no item to pick up here.')


while True:
    print(f'\nYou are in the {current_room}')
    print(f'Inventory: {inventory}')
    user_input = input('Enter a direction: north, east, south, west, get item, or exit. ').strip().lower()
    
    if user_input in ['north', 'east', 'south', 'west']:
        if user_input in rooms[current_room]:
            current_room = move_rooms(current_room, user_input)
        else:
            print('You cannot go that way.')
    elif user_input == 'get item':
        get_item(current_room, inventory)
    elif user_input == 'exit':
        print('You have failed the Emperor and your brothers...')
        break
    else:
        print('Invalid command, please try again.')

关键修改点 #

• 重构get_item函数：接收当前房间名称和背包列表，从rooms字典中读取房间数据，检查'item'键是否存在
• 拾取物品后删除房间内的'item'键，防止重复拾取
• 优化主循环输入处理：统一转为小写避免大小写问题，拆分输入分支让逻辑更清晰
• 添加实时背包状态显示，方便玩家查看已拾取物品

内容的提问来源于stack exchange，提问作者John Smith