noctbot/main.js

const Discord = require("discord.js");
const TOKEN = require("./token.js");

const client = new Discord.Client();
const PING_EMOTES_COUNT = 7;

function getPingEmoteId() {
    return Math.floor(Math.random() * PING_EMOTES_COUNT);
}

client.on("ready", () => {
    console.log("Ready!");
});

client.on("message", m => {
    if (m.mentions.users.some(u => u.id == client.user.id)) {
        const emote = `AngeryPing${getPingEmoteId()}`;
        m.channel.send(client.emojis.find(e => e.name == emote).toString());
    } else if (m.content.includes("Noct")) {
        m.channel.send(client.emojis.find(e => e.name == "mukuNeighWaaaaaa").toString());
    }
});

client.login(TOKEN);