CommandoClient, Change Filenames, etc.

commands/games/math-game.js

@@ -0,0 +1,71 @@
+const { Command } = require('discord.js-commando');
+const { RichEmbed } = require('discord.js');
+const math = require('mathjs');
+const operations = ['+', '-', '*'];
+
+module.exports = class MathGameCommand extends Command {
+    constructor(client) {
+        super(client, {
+            name: 'math-game',
+            group: 'games',
+            memberName: 'math-game',
+            description: 'See how fast you can answer a math problem in a given time limit.',
+            args: [
+                {
+                    key: 'difficulty',
+                    prompt: 'What should the difficulty of the game be? `Easy`, `Medium`, `Hard`, `Extreme`, or `Impossible`?',
+                    type: 'string',
+                    validate: difficulty => {
+                        if (['easy', 'medium', 'hard', 'extreme', 'impossible'].includes(difficulty.toLowerCase())) return true;
+                        return 'The difficulty must be either `easy`, `medium`, `hard`, `extreme`, or `impossible`.';
+                    },
+                    parse: difficulty => difficulty.toLowerCase()
+                }
+            ]
+        });
+    }
+
+    async run(msg, args) {
+        if (msg.channel.type !== 'dm')
+            if (!msg.channel.permissionsFor(this.client.user).has('EMBED_LINKS'))
+                return msg.say('This Command requires the `Embed Links` Permission.');
+        const { difficulty } = args;
+        const operation = operations[Math.floor(Math.random() * operations.length)];
+        let value;
+        switch(difficulty) {
+            case 'easy':
+                value = 10;
+                break;
+            case 'medium':
+                value = 50;
+                break;
+            case 'hard':
+                value = 100;
+                break;
+            case 'extreme':
+                value = 1000;
+                break;
+            case 'impossible':
+                value = 10000;
+                break;
+        }
+        const expression = `${Math.floor(Math.random() * value) + 1} ${operation} ${Math.floor(Math.random() * value) + 1}`;
+        const solved = math.eval(expression).toString();
+        const embed = new RichEmbed()
+            .setTitle('You have **10** seconds to answer:')
+            .setDescription(expression);
+        msg.embed(embed);
+        try {
+            const collected = await msg.channel.awaitMessages(res => res.author.id === msg.author.id, {
+                max: 1,
+                time: 10000,
+                errors: ['time']
+            });
+            if (collected.first().content !== solved)
+                return msg.say(`Nope! The correct answer is: ${solved}.`);
+            return msg.say(`Perfect! ${solved} is the correct answer!`);
+        } catch (err) {
+            return msg.say(`Time! The correct answer is ${solved}.`);
+        }
+    }
+};