From c415c76ac632b8e55cf0260c52ebc7c77836614e Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Tue, 9 Jun 2020 08:10:11 -0700
Subject: [PATCH] Don't let a new prompt get started when another is active

This avoids any negative side effect from a race condition where two
clients request a game to start within a short time window of each
other. When one prompt is active, the server will ignore any further
incoming requests to start a new prompt, (until the active one is
completed).
---
 empathy.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/empathy.js b/empathy.js
index 8ecf9e1..29d31bf 100644
--- a/empathy.js
+++ b/empathy.js
@@ -43,6 +43,11 @@ class Empathy extends Game {
     if (! prompt)
       return false;
 
+    /* Ignore any start request that comes in while a prompt is
+     * already being played. */
+    if (this.state.active_prompt)
+      return false;
+
     this.state.active_prompt = prompt;
 
     this.broadcast_event_object('start', prompt);
-- 
2.43.0