From 9f6f616ecc70f065c9739e89cc555ce55980e4ec Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Sun, 8 Oct 2017 12:09:10 +0900
Subject: [PATCH] :v:

---
 src/api/bot/core.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/api/bot/core.ts b/src/api/bot/core.ts
index d7655f817..b13402dce 100644
--- a/src/api/bot/core.ts
+++ b/src/api/bot/core.ts
@@ -295,11 +295,15 @@ class GuessingGameContext extends Context {
 			return 'やめました。';
 		}
 
+		const guess = parseInt(query, 10);
+
+		if (isNaN(guess)) {
+			return '整数で推測してください。「やめる」と言うとゲームをやめます。';
+		}
+
 		this.try++;
 		this.emit('updated');
 
-		const guess = parseInt(query, 10);
-
 		if (this.secret < guess) {
 			return `${guess}よりも小さいですね`;
 		} else if (this.secret > guess) {