From c797d4ccba33c8ce56d518f4d8408ac8996144ab Mon Sep 17 00:00:00 2001
From: ? <zeno@attnam.com>
Date: Wed, 27 Feb 2019 18:01:10 +0100
Subject: [PATCH] racing:: fixed a potential crash if goal not found

---
 racing.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/racing.cpp b/racing.cpp
index 7085a971..ac9cfce0 100644
--- a/racing.cpp
+++ b/racing.cpp
@@ -1294,8 +1294,12 @@ void markers() {
     using namespace racing;
     cell *goal = NULL;
     for(cell *c: track) if(inscreenrange(c)) goal = c;
+    
+    if(!goal) return;
+
     hyperpoint H = tC0(ggmatrix(goal));
     if(invalid_point(H)) return;
+
     queuechr(H, 2*vid.fsize, 'X', 0x10100 * int(128 + 100 * sintick(150)));
     queuestr(H, vid.fsize, 
       #if CAP_CRYSTAL