文本游戏中Get [Item Name]命令失效问题求助

核心问题 #

你代码里的命令验证逻辑是硬匹配commands列表的内容，但commands里的get [item name]只是提示模板，玩家实际输入的get Invincibility bracelet这类具体命令根本不在列表中，会直接触发"Invalid command"提示，根本走不到后续的get命令处理逻辑。

另外，commands里的go North等具体方向命令也存在扩展性问题，但这不是当前的核心故障点，优先解决get命令的bug。

修复步骤 #

1. 重构命令验证逻辑：放弃硬匹配commands列表的方式，改为按命令类型判断：
   • 先识别exit命令
   • 再判断是否是go开头的方向命令，验证方向是否在当前房间的可用方向中
   • 最后判断是否是get开头的物品命令
   • 剩余输入判定为无效命令
2. 优化提示文本：将commands列表里的具体方向命令改为go [direction]，让提示更符合实际输入逻辑。

修改后的完整代码 #

# A dictionary for the created text game
# The dictionary links a room to other rooms.

current_room = "Grand Hall"
inventory = []
rooms = {
    "Grand Hall": {"South": "Alderaan", "North": "Hoth", "East": "Naboo", "West": "Mustafar"},
    "Alderaan": {"North": "Grand Hall", "East": "Tatooine"},
    "Tatooine": {"West": "Alderaan"},
    "Mustafar": {"East": "Grand Hall"},
    "Hoth": {"East": "Kashyyyk", "South": "Grand Hall"},
    "Kashyyyk": {"West": "Hoth"},
    "Naboo": {"North": "Dagobah", "West": "Grand Hall"},
    "Dagobah": {"South": "Naboo"}
}

room_items = {
    "Grand Hall": ["Invincibility bracelet"],
    "Alderaan": ["Soul Stone"],
    "Tatooine": ["Death Stone"],
    "Mustafar": ["Chaos Stone"],
    "Hoth": ["Genesis Stone"],
    "Kashyyyk": ["Evolution Stone"],
    "Naboo": ["Nightmare Stone"],
    "Dagobah": ["War Stone"]
}

commands = ["go [direction]", "get [item name]", "exit"]


# Define a function to display the available commands
def show_valid_commands():
    print("Available commands:")
    for cmd in commands:
        print("- " + cmd)


# Define a function to display the player's status
def show_status():
    print("You are currently in the " + current_room)
    print("Inventory: " + str(inventory))
    print("Items in this room: " + str(room_items.get(current_room, [])))


# Start the game loop
while True:
    # Display the current status and available commands
    show_status()
    show_valid_commands()

    # Get input from the player
    command = input("What would you like to do? ").strip()

    # Handle exit command first
    if command == "exit":
        break

    # Handle go [direction] command
    if command.startswith("go "):
        direction = command[3:].strip()
        # Validate direction
        if direction in rooms[current_room]:
            current_room = rooms[current_room][direction]
        else:
            print("There's no room in that direction. Please choose another direction.")
        continue

    # Handle get [item name] command
    if command.startswith("get "):
        item_name = command[4:].strip()
        if item_name in room_items.get(current_room, []):
            room_items[current_room].remove(item_name)
            inventory.append(item_name)
            print(f"You picked up the {item_name}.")
        else:
            print(f"There is no {item_name} in this room.")
        continue

    # Invalid command fallback
    print("Invalid command. Please enter a valid command.")

# Output a message to let the player know the game has ended
print("You have exited the game.")

额外优化点 #

• 给输入增加.strip()处理，避免玩家输入前后空格导致的匹配失败
• 调整命令处理顺序，逻辑更清晰，减少冗余判断

内容的提问来源于stack exchange，提问作者Matthew Reyna