Discord.py狙击命令

Question

我正在尝试发出一个命令，让机器人“截断”最后删除的消息。这是我当前的代码：


snipe_message_content = None
snipe_message_author = None

@client.event
async def on_message_delete(message):
    snipe_message_author.remove(None)
    snipe_message_content.remove(None)
    snipe_message_content.append(message.content) 
    snipe_message_author.append(message.author.id) 
    await asyncio.sleep(str(60))
    snipe_message_author.remove(message.author.id)
    snipe_message_content.remove(message.content)
    

@client.command()
async def snipe(message):
    if snipe_message_content==None:
        await message.channel.send("Theres nothing to snipe.")
    else:
        embed = discord.Embed(description=f"{snipe_message_content}")
        embed.set_footer(text=f"Asked by {message.author.name}#{message.author.discriminator}", icon_url=message.author.avatar_url)
        embed.set_author(name= f"<@{snipe_message_author}>")
        await message.channel.send(embed=embed)
        return

await message.channel.send("Theres nothing to snipe.") 部分工作得很好，但其余部分不工作。有人可以帮忙吗？

Answer 1

嗯，您的 on_message_delete() 功能无法正常工作。

我会将您的变量缩短为 smc (snipe_message_content) 和 sma (snipe_message_author)。

首先，你的变量sma和smc是类型None，但是方法remove和append是输入 list，所以你必须声明列表

smc = []
sma = []

为了让他们工作。

不过，无论如何您都不必这样做。只需给您当前的变量一个新值：

snipe_message_content = None
snipe_message_author = None

@client.event
async def on_message_delete(message):

    global snipe_message_content
    global snipe_message_author
    # Variables outside a function have to be declared as global in order to be changed

    snipe_message_content = message.content
    snipe_message_author = message.author.id
    await asyncio.sleep(60)
    snipe_message_author = None
    snipe_message_content = None

此外，您不应将 60 转换为字符串。 time.sleep 和 asyncio.sleep 都需要 integer 才能工作。（顺便说一下，如果你想让 60 成为一个字符串，只需写 "60" 并加上引号。

此外，请注意以下情况：如果一条消息被删除，但在新消息被删除后 50 秒，sma 和 smc 将分配给新消息。但是 10 秒后，之前消息执行的函数会将 sma 和 smc 的值设置为 None.

因此，在 await asyncio.sleep(60) 之后检查您的消息是否与之前相同：

snipe_message_content = None
snipe_message_author = None
snipe_message_id = None

@client.event
async def on_message_delete(message):

    global snipe_message_content
    global snipe_message_author
    global snipe_message_id

    snipe_message_content = message.content
    snipe_message_author = message.author.id
    snipe_message_id = message.id
    await asyncio.sleep(60)

    if message.id == snipe_message_id:
        snipe_message_author = None
        snipe_message_content = None
        snipe_message_id = None

Answer 2

您的命令现在可能可以工作，但是有一个问题。如果我在我的服务器中删除一条消息，而你在你的服务器中运行命令，你可能会看到该消息。

你应该做的是制作 snipe_message_author 和 snipe_message_content 变量字典。

活动应该是这样的：

snipe_message_author = {}
snipe_message_content = {}

@client.event
async def on_message_delete(message):
     snipe_message_author[message.channel.id] = message.author
     snipe_message_content[message.channel.id] = message.content
     await sleep(60)
     del snipe_message_author[message.channel.id]
     del snipe_message_content[message.channel.id]

@client.command(name = 'snipe')
async def snipe(ctx):
    channel = ctx.channel
    try: #This piece of code is run if the bot finds anything in the dictionary
        em = discord.Embed(name = f"Last deleted message in #{channel.name}", description = snipe_message_content[channel.id])
        em.set_footer(text = f"This message was sent by {snipe_message_author[channel.id]}")
        await ctx.send(embed = em)
    except KeyError: #This piece of code is run if the bot doesn't find anything in the dictionary
        await ctx.send(f"There are no recently deleted messages in #{channel.name}")


#If the bot sends the embed, but it's empty, it simply means that the deleted message was either a media file or another embed.

总而言之，这是为您解决的问题：

不显示来自其他服务器的已删除邮件
不显示来自其他频道的已删除消息
一台服务器中删除的邮件不会替换另一台服务器中删除的邮件

希望这对您有所帮助:)

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