数当てゲームを実装するなど

src/modules/guessing-game/index.ts

@@ -0,0 +1,118 @@
+import 藍 from '../../ai';
+import IModule from '../../module';
+import MessageLike from '../../message-like';
+import serifs from '../../serifs';
+import db from '../../memory';
+
+export const guesses = db.addCollection<{
+	userId: string;
+	secret: number;
+	tries: number[];
+	isEnded: boolean;
+	startedAt: number;
+	endedAt: number;
+}>('guessingGame', {
+	indices: ['userId']
+});
+
+export default class GuessingGameModule implements IModule {
+	public name = 'guessingGame';
+	private ai: 藍;
+
+	public install = (ai: 藍) => {
+		this.ai = ai;
+	}
+
+	public onMention = (msg: MessageLike) => {
+		if (msg.text && msg.text.includes('数当て')) {
+			const exist = guesses.findOne({
+				userId: msg.userId,
+				isEnded: false
+			});
+
+			if (exist != null) {
+				msg.reply(serifs.GUESSINGGAME_ARLEADY_STARTED);
+			} else {
+				const secret = Math.floor(Math.random() * 100);
+
+				guesses.insertOne({
+					userId: msg.userId,
+					secret: secret,
+					tries: [],
+					isEnded: false,
+					startedAt: Date.now(),
+					endedAt: null
+				});
+
+				msg.reply(serifs.GUESSINGGAME_STARTED).then(reply => {
+					this.ai.subscribeReply(this, msg.userId, msg.isMessage, msg.isMessage ? msg.userId : reply.id);
+				});
+			}
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	public onReplyThisModule = (msg: MessageLike) => {
+		if (msg.text == null) return;
+
+		const exist = guesses.findOne({
+			userId: msg.userId,
+			isEnded: false
+		});
+
+		if (msg.text.includes('やめ')) {
+			msg.reply(serifs.GUESSINGGAME_CANCEL);
+			exist.isEnded = true;
+			exist.endedAt = Date.now();
+			guesses.update(exist);
+			this.ai.unsubscribeReply(this, msg.userId);
+			return;
+		}
+
+		const guess = msg.text.toLowerCase().replace(this.ai.account.username.toLowerCase(), '').match(/[0-9]+/);
+
+		if (guess == null) {
+			msg.reply(serifs.GUESSINGGAME_NAN).then(reply => {
+				this.ai.subscribeReply(this, msg.userId, msg.isMessage, reply.id);
+			});
+		} else {
+			const g = parseInt(guess, 10);
+
+			const firsttime = exist.tries.indexOf(g) === -1;
+
+			let text: string;
+			let end = false;
+
+			if (exist.secret < g) {
+				text = firsttime
+					? serifs.GUESSINGGAME_LESS.replace('$', g.toString())
+					: serifs.GUESSINGGAME_LESS_AGAIN.replace('$', g.toString());
+			} else if (exist.secret > g) {
+				text = firsttime
+					? serifs.GUESSINGGAME_GRATER.replace('$', g.toString())
+					: serifs.GUESSINGGAME_GRATER_AGAIN.replace('$', g.toString());
+			} else {
+				end = true;
+				text = serifs.GUESSINGGAME_CONGRATS.replace('{tries}', exist.tries.length.toString());
+			}
+
+			if (end) {
+				exist.isEnded = true;
+				exist.endedAt = Date.now();
+				guesses.update(exist);
+				this.ai.unsubscribeReply(this, msg.userId);
+			} else {
+				exist.tries.push(g);
+				guesses.update(exist);
+			}
+
+			msg.reply(text).then(reply => {
+				if (!end) {
+					this.ai.subscribeReply(this, msg.userId, msg.isMessage, reply.id);
+				}
+			});
+		}
+	}
+}