Add dice module

src/modules/dice/index.ts

@@ -0,0 +1,36 @@
+import 藍 from '../../ai';
+import IModule from '../../module';
+import MessageLike from '../../message-like';
+
+export default class DiceModule implements IModule {
+	public readonly name = 'dice';
+	private ai: 藍;
+
+	public install = (ai: 藍) => {
+		this.ai = ai;
+	}
+
+	public onMention = (msg: MessageLike) => {
+		if (msg.text == null) return false;
+
+		const query = msg.text.match(/([0-9]+)[dD]([0-9]+)/);
+
+		if (query == null) return false;
+
+		const times = parseInt(query[1], 10);
+		const dice = parseInt(query[2], 10);
+
+		if (times < 1 || times > 10) return false;
+		if (dice < 2 || dice > 1000) return false;
+
+		const results: number[] = [];
+
+		for (let i = 0; i < times; i++) {
+			results.push(Math.floor(Math.random() * dice) + 1);
+		}
+
+		msg.reply(results.join(' '));
+
+		return true;
+	}
+}