Discord.js如何制作反应收集器 [英] discord.js How do you make a reaction collector

问题描述

我正在尝试这样做，当你达到一定的反应时，我的机器人会发送一条消息，如果有人能帮助我，这是我的代码

.then(function(sentMessage) {
            sentMessage.react('👍').catch(() => console.error('emoji failed to react.')).message.reactions.cache.get('👍').count;
            const filter = (reaction, user) => {
    return reaction.emoji.name === '👍' && user.id === message.author.id;
};

message.awaitReactions(filter, { max: 2, time: 00, errors: ['time'] })
    .then(collected => console.log(collected.size))
    .catch(collected => {
        console.log(`After a minute, only ${collected.size} out of 4 reacted.`);
    });
        });
})

推荐答案

除了awaitReactions，您还可以使用createReactionCollector，它的collector.on()监听器可能比awaitReactions的then()和catch()方法更易于使用。

您不需要使用message.reactions.cache.get('👍').count来检查反应次数，因为end事件会在您达到最大值时触发，并且您可以在其中发送消息。

此外，在您的filter中，您不需要检查user.id === message.author.id，因为您将希望接受其他用户的反应。但是，您可以检查是否!user.bot，以确保不会计算机器人的反应。如果不想限制机器人收集反应的时间，也可以删除time选项。

另一个错误是您对message本身调用了.awaitReactions()，而不是对sentMessage。

查看以下工作代码：

// v12
client.on('message', async (message) => {
  if (message.author.bot || !message.content.startsWith(prefix)) return;

  const args = message.content.slice(prefix.length).split(/ +/);
  const command = args.shift().toLowerCase();
  const MAX_REACTIONS = 2;

  if (command === 'react') {
    try {
      // send a message and wait for it to be sent
      const sentMessage = await message.channel.send('React to this!');

      // react to the sent message
      await sentMessage.react('👍');

      // set up a filter to only collect reactions with the 👍 emoji
      // and don't count the bot's reaction
      const filter = (reaction, user) => reaction.emoji.name === '👍' && !user.bot;

      // set up the collecrtor with the MAX_REACTIONS
      const collector = sentMessage.createReactionCollector(filter, {
        max: MAX_REACTIONS,
      });

      collector.on('collect', (reaction) => {
        // in case you want to do something when someone reacts with 👍
        console.log(`Collected a new ${reaction.emoji.name} reaction`);
      });

      // fires when the time limit or the max is reached
      collector.on('end', (collected, reason) => {
        // reactions are no longer collected
        // if the 👍 emoji is clicked the MAX_REACTIONS times
        if (reason === 'limit')
          return message.channel.send(`We've just reached the maximum of ${MAX_REACTIONS} reactions.`);
      });
    } catch (error) {
      // "handle" errors
      console.log(error);
    }
  }
});

如果您使用的是discord.js V13，则有几个更改：

• 您需要添加GUILD_MESSAGE_REACTIONS意图
• 事件现在为messageCreate
• 收集器的filter在options对象内

// v13
const { Client, Intents } = require('discord.js');

const client = new Client({
  intents: [
    Intents.FLAGS.GUILDS,
    Intents.FLAGS.GUILD_MESSAGES,
    Intents.FLAGS.GUILD_MESSAGE_REACTIONS,
  ],
});
const prefix = '!';

client.on('messageCreate', async (message) => {
  if (message.author.bot || !message.content.startsWith(prefix)) return;

  const args = message.content.slice(prefix.length).split(/ +/);
  const command = args.shift().toLowerCase();
  const MAX_REACTIONS = 2;

  if (command === 'react') {
    try {
      // send a message and wait for it to be sent
      const sentMessage = await message.channel.send('React to this!');

      // react to the sent message
      await sentMessage.react('👍');

      // set up a filter to only collect reactions with the 👍 emoji
      // and don't count the bot's reaction
      const filter = (reaction, user) => reaction.emoji.name === '👍' && !user.bot;

      // set up the collecrtor with the MAX_REACTIONS
      const collector = sentMessage.createReactionCollector({
        filter,
        max: MAX_REACTIONS,
      });

      collector.on('collect', (reaction) => {
        // in case you want to do something when someone reacts with 👍
        console.log(`Collected a new ${reaction.emoji.name} reaction`);
      });

      // fires when the time limit or the max is reached
      collector.on('end', (collected, reason) => {
        // reactions are no longer collected
        // if the 👍 emoji is clicked the MAX_REACTIONS times
        if (reason === 'limit')
          return message.channel.send(`We've just reached the maximum of ${MAX_REACTIONS} reactions.`);
      });
    } catch (error) {
      // "handle" errors
      console.log(error);
    }
  }
});

结果：

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