From ec3096a0b199457ce424ee0f145030ee94c0b495 Mon Sep 17 00:00:00 2001
From: Jerry <isjerryxiao@outlook.com>
Date: Sun, 19 Apr 2020 16:50:25 +0800
Subject: [PATCH] allow only one game perchat

---
 bot.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/bot.py b/bot.py
index 994d201..1e27ce7 100644
--- a/bot.py
+++ b/bot.py
@@ -76,6 +76,16 @@ def new_game(bot, update):
 
     else:
 
+        try:
+            _game = gm.chatid_games[chat_id][-1]
+        except (KeyError, IndexError):
+            pass
+        else:
+            send_async(bot, chat_id,
+                       text=_("There is already a game running in this chat. Join the "
+                              "game with /join"))
+            return
+
         if update.message.chat_id in gm.remind_dict:
             for user in gm.remind_dict[update.message.chat_id]:
                 send_async(bot,