node.js - 我如何在discord.js中检查一个人是否上线、离线等？

Question

const channel = client.channels.cache.get('<channelid>');
const person1 = client.users.cache.get('<userid>');
const person = client.users.cache.get('<userid>');

client.on('message', message =>{
  client.on('presenceUpdate', () =>{

    if(person1.user.presence.status === 'dnd' || person1.user.presence.status === 'online'){
      channelforstatus.send('person1 is now online');
    }

    else if(peron1.user.presence.status === 'offline' || person1.user.presence.status === 'idle'){
      channel.send('person1 is offline');
    }

client.on('message', message => {
  client.on('presenceUpdate', () =>{

    if(person.user.presence.status === 'dnd' || person.user.presence.status === 'online'){
      channel.send('person is now on');
    }

    else if(person.user.presence.status === 'offline' || person.user.presence.status === 'idle'){
      channel.send('person is now off');
    }

  });
});

  });

});

这是我尝试过的，但 .send() 该功能不起作用。我到处寻找，但没有发现任何可以帮助我解决这个问题的方法。我只需要它，这样它每次都会检查特定人员是否上线、离线等。并向特定 channel 发送消息。

Answer 1

首先，要遵守的一条规则是事件监听器应始终位于代码的顶层且切勿嵌套。 (否则您可能会遇到内存泄漏和其他问题，例如重复和意外的代码执行)。

client.on("message", (message) => {
    ...
});

client.on('presenceUpdate', (oldPresence, newPresence) => {
    ...
});

现在查看 presenceUpdate事件和Presence您可以设法查看状态是否像这样演变的对象文档:

client.on('presenceUpdate', (oldPresence, newPresence) => {
    let member = newPresence.member;
    // User id of the user you're tracking status.
    if (member.id === '<userId>') {
        if (oldPresence.status !== newPresence.status) {
            // Your specific channel to send a message in.
            let channel = member.guild.channels.cache.get('<channelId>');
            // You can also use member.guild.channels.resolve('<channelId>');

            let text = "";

            if (newPresence.status === "online") {
                text = "Our special member is online!";
            } else if (newPresence.status === "offline") {
                text = "Oh no! Our special member is offline.";
            }
            // etc...

            channel.send(text);
        }
    }
});

请注意 presenceUpdate事件由用户和机器人共享的每个公会触发，这意味着如果用户状态更改并与您的机器人共享两个公会，则此代码将执行两次。