From be4fa5d2e526102e50d937f55606a0cb8c3ba77a Mon Sep 17 00:00:00 2001
From: redfast00 <redfast00@gmail.com>
Date: Wed, 19 Jan 2022 21:33:41 +0100
Subject: [PATCH] Add fallback when seeding random

---
 lib/obus_module.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/obus_module.cpp b/lib/obus_module.cpp
index bd758f5..8440166 100644
--- a/lib/obus_module.cpp
+++ b/lib/obus_module.cpp
@@ -166,7 +166,9 @@ bool loopPuzzle(obus_can::message* message, void (*callback_game_start)(uint8_t
 					callback_state(message->gamestatus.time_left, message->gamestatus.strikes, message->gamestatus.max_strikes, message->gamestatus.puzzle_modules_left);
 					break;
 				case OBUS_MSGTYPE_C_INFOSTART:
-					randomSeed(message->infostart.seed);
+				  // randomSeed has no effect when called with 0 as seed, so we use
+					//  a fallback value that is unlikely to collide with other frequently used seeds
+					randomSeed(message->infostart.seed ? message->infostart.seed : 0xFFFFFFFF);
 					break;
 				default:
 					break;