Akinator Command

README.md

@@ -176,6 +176,7 @@ Xiao has nearly 200 helpful commands to power up your Discord server!
 - `yu-gi-oh` Responds with info on a Yu-Gi-Oh! card.
 
 ### Games
+- `akinator` Play a game of Akinator!
 - `battle` Engage in a turn-based battle against another user or the AI.
 - `emoji-emoji-revolution` Play a game of Emoji Emoji Revolution.
 - `fishy` Go fishing.

commands/games/akinator.js

@@ -0,0 +1,111 @@
+const Command = require('../../structures/Command');
+const { MessageEmbed } = require('discord.js');
+const snekfetch = require('snekfetch');
+const { stripIndents } = require('common-tags');
+
+module.exports = class AkinatorCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'akinator',
+			group: 'games',
+			memberName: 'akinator',
+			description: 'Play a game of Akinator!'
+		});
+
+		this.sessions = new Map();
+	}
+
+	async run(msg) {
+		if (this.sessions.has(msg.channel.id)) return msg.say('Only one game may be occuring per channel.');
+		try {
+			let ans = null;
+			this.sessions.set(msg.channel.id, { progress: null });
+			while (this.sessions.get(msg.channel.id).progress < 99) {
+				const data = ans === null ? await this.createSession(msg.channel) : await this.progress(msg.channel, ans);
+				const answers = data.answers.map(answer => answer.answer.toLowerCase());
+				await msg.say(stripIndents`
+					**${++data.step}.** ${data.question}
+					${data.answers.map(answer => answer.answer).join(' | ')}
+				`);
+				const filter = res => res.author.id === msg.author.id && answers.includes(res.content.toLowerCase());
+				const msgs = await msg.channel.awaitMessages(filter, {
+					max: 1,
+					time: 30000
+				});
+				if (!msgs.size) {
+					await msg.say('Sorry, time is up!');
+					break;
+				}
+				ans = answers.indexOf(msgs.first().content.toLowerCase());
+			}
+			const guess = await this.finish(msg.channel);
+			const embed = new MessageEmbed()
+				.setTitle(`I'm ${Math.round(guess.proba * 100)}% sure it's...`)
+				.setDescription(guess.name)
+				.setThumbnail(guess.absolute_picture_path);
+			await msg.embed(embed);
+			const msgs = await msg.channel.awaitMessages(res => res.author.id === msg.author.id, {
+				max: 1,
+				time: 30000
+			});
+			this.sessions.delete(msg.channel.id);
+			if (!msgs.size) return msg.say('I guess your silence means I have won.');
+			const response = msgs.first().content.toLowerCase();
+			if (!['yes', 'no'].includes(response)) return msg.say('I guess I\'m right then!');
+			return msg.say(response === 'yes' ? 'Another win for me!' : 'Bravo, you have defeated me.');
+		} catch (err) {
+			this.sessions.delete(msg.channel.id);
+			return msg.say(`Oh no, an error occurred: \`${err.message}\`. Try again later!`);
+		}
+	}
+
+	async createSession(channel) {
+		const { body } = await snekfetch
+			.get('http://api-en1.akinator.com/ws/new_session')
+			.query({
+				partner: 1,
+				player: 'xiaobot'
+			});
+		const data = body.parameters;
+		this.sessions.set(channel.id, {
+			id: data.identification.session,
+			signature: data.identification.signature,
+			step: 0,
+			progress: parseInt(data.step_information.progression, 10)
+		});
+		return data.step_information;
+	}
+
+	async progress(channel, answer) {
+		const session = this.sessions.get(channel.id);
+		const { body } = await snekfetch
+			.get('http://api-en1.akinator.com/ws/answer')
+			.query({
+				session: session.id,
+				signature: session.signature,
+				step: session.step,
+				answer
+			});
+		this.sessions.set(channel.id, {
+			id: session.id,
+			signature: session.signature,
+			step: parseInt(body.parameters.step, 10),
+			progress: parseInt(body.parameters.progression, 10)
+		});
+		return body.parameters;
+	}
+
+	async finish(channel) {
+		const session = this.sessions.get(channel.id);
+		const { body } = await snekfetch
+			.get('http://api-en1.akinator.com/ws/list')
+			.query({
+				session: session.id,
+				signature: session.signature,
+				step: session.step,
+				size: 1,
+				mode_question: 0
+			});
+		return body.parameters.elements[0].element;
+	}
+};

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "xiaobot",
-	"version": "41.0.3",
+	"version": "41.1.0",
 	"description": "Your personal server companion.",
 	"main": "Shard.js",
 	"scripts": {