Discord bot:命令名称的命令处理程序别名 [英] Discord bot: Command Handler alias for command name

问题描述

我正在开发Discord机器人，并试图改善我已经运行的命令处理程序.我有一个文件夹，每个文件都是一个额外的命令.我想扩展系统，所以我有相同命令的别名，例如我希望我的clearchat命令可与/clearchat或/cc一起使用，但我不想仅创建另一个文件并复制代码.这就是我所拥有的:

I am working on a Discord bot, and trying to improve my already functioning command handler. I have a folder, and every file is an extra command. I want to expand the system, so I have alias name for the same command, e.g. I want my clearchat command to function with /clearchat or with /cc, but I dont want to create just another file and copy the code. This is what I have:

// I left out the other imports etc.
client.commands = new Discord.Collection();

// Reading commands-folder
const commandFiles = fs.readdirSync("./commands/").filter(file => file.endsWith(".js"));
for (const file of commandFiles) {
    const command = require(`./commands/${file}`);
    client.commands.set(command.name, command); 
}

client.on("message", msg => {

    if (msg.content.startsWith(config.prefix) && !msg.author.bot && msg.guild) {
        const args = msg.content.slice(config.prefix.length).split(" ");
        const command = args.shift().toLowerCase();
        
        if (client.commands.find(f => f.name === command)) {
            client.commands.get(command).execute(client, msg, args);    
        }
    }
});

，然后是命令文件夹中的命令文件:

and then a command file inside the commands-folder:

module.exports = {
    name: "clearchat",
    execute(client, msg, args) {
        if (msg.member.hasPermission("ADMINISTRATOR")) {
              msg.channel.messages.fetch({limit: 99}).then(messages => {
                  msg.channel.bulkDelete(messages);
              });
        }
    }
}

(我知道最多最多只能删除100条消息，对此我可以接受)

(I know it only deletes 100 messages max, I am fine with that)

我通过更改我的client.on("message")函数中的几行来成像一些东西，而只需要在clearchat.js文件中写一行 name:["clearchat"，"cc"，...] ，在这里我可以根据需要编写尽可能多的别名.

I image something in changing a few lines in my client.on("message) function, and just having to write in the clearchat.js file a line like name: ["clearchat", "cc", ...] where I can go writing as much aliases as I want.

提前谢谢！

推荐答案

首先，您必须使用命令中的别名创建一个数组.

First, you'll have to create an array with the aliases in your command.

module.exports = {
    name: "clearchat",
    aliases: ["cc"],
    execute(client, msg, args) {
        
    }
}

然后，就像使用命令一样，为别名创建一个Collection.

Then, the same you did with commands, create a Collection for the aliases.

client.aliases = new Discord.Collection()

最后，将别名绑定到命令:

And finally, bind the alias to the command:

if (command.aliases) {
    command.aliases.forEach(alias => {
        client.aliases.set(alias, command)
    })
}

---

现在，当您想执行命令时，必须检查它是否具有别名.

---

Now, when you want to execute a command, you'll have to check if it has an alias.

const commandName = "testcommand" // This should be the user's input.
const command = client.commands.get(commandName) || client.aliases.get(commandName); // This will return the command and you can proceed by running the execute method.

---

fs.readdir(`./commands/`, (error, files) => {
    if (error) {return console.log("Error while trying to get the commmands.");};
    files.forEach(file => {
        const command = require(`./commands/${file}`);
        const commandName = file.split(".")[0];

        client.commands.set(commandName, command);

        if (command.aliases) {
            command.aliases.forEach(alias => {
                client.aliases.set(alias, command);
            });
        };
    });
});

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