問題描述

使用 discord.py，我可以從一段代碼運行多個機器人，但我正在尋找一種將 cog 或擴展加載到多個機器人中的方法.對于一個測試用例，我有 bot.py，它處理加載 cog 和啟動 bot，以及 cog.py，它是一個簡單的 cog，它遞增 1 到 a計數器

Using discord.py, I can run multiple bots from one piece of code, but I'm looking for a way to load a cog or extension into multiple bots. For a test case, I have bot.py, which handles loading the cog and starting the bot, and cog.py which is a simple cog that incrementally adds 1 to a counter

bot.py

from discord.ext import commands
import asyncio

client1 = commands.Bot(command_prefix='!')
client2 = commands.Bot(command_prefix='~')

client1.load_extension('cog')
client2.load_extension('cog')

@client1.event
async def on_ready():
    print('client1 ready')

@client1.command()
async def ping():
    await client1.say('Pong')

@client2.event
async def on_ready():
    print('client2 ready')

@client2.command()
async def ping():
    await client2.say('Pong')

loop = asyncio.get_event_loop()
loop.create_task(client1.start('TOKEN1'))
loop.create_task(client2.start('TOKEN2'))
loop.run_forever()

cog.py

from discord.ext import commands

class TestCog:

    def __init__(self, bot):
        self.bot = bot
        self.counter = 0

    @commands.command()
    async def add(self):
        self.counter += 1
        await self.bot.say('Counter is now %d' % self.counter)


def setup(bot):
    bot.add_cog(TestCog(bot))

使用 !ping 將使 client1 響應 Pong，而使用 ~ping 將使 client2 響應Pong，這是預期的行為.

Using !ping will make client1 respond with Pong, while using ~ping will make client2 respond with Pong, which is expected behaviour.

但是，只有一個機器人會同時響應 !add 和 ~add，計數器會隨著任一命令而增加.這似乎取決于哪個機器人最后加載 cog.

However, only one of the bots will respond to both !add and ~add, with the counter increasing with either command. This seems dependent on which bot loads the cog last.

有沒有辦法讓正確的機器人響應正確的命令，同時通過任一命令增加計數器?我知道我可以將它分成兩個齒輪并將結果保存到一個文件中，但是是否可以在不將計數器保存到磁盤的情況下做到這一點?

Is there a way to have the correct bot respond to the correct command while also having the counter increase with either command? I know I can split it into two cogs and save the result to a file for example, but is it possible to do it without saving the counter to disk?

推薦答案

這是因為 @commands.command() 只加載了一次.因此，兩個機器人共享相同的 Command 實例.您需要在實例級別添加命令，而不是通過 @commands.command() 裝飾器.

This is due to the fact that @commands.command() is only loaded once. Therefore, both of the bots shared the same Command instance. What you need is to add the command on an instance level, and not by the @commands.command() decorator.

class TestCog:
    counter = 0

    def __init__(self, bot):
        self.bot = bot
        self.bot.add_command(commands.Command('add', self.add))

    async def add(self):
        TestCog.counter += 1
        await self.bot.say('Counter is now %d' % TestCog.counter)

或:

class TestCog:
    counter = 0

    def __init__(self, bot):
        self.bot = bot
        self.bot.command()(self.add)

    async def add(self):
        TestCog.counter += 1
        await self.bot.say('Counter is now %d' % TestCog.counter)

為了讓兩個機器人共享相同的屬性.你想要的是類屬性，而不是實例的.

In order to make both bots share the same attribute. You want class attribute, not instance's.

這篇關于為多個機器人加載 cog的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！