From 75b5ae65093d0c609c8d682767dd576e7c1cc992 Mon Sep 17 00:00:00 2001
From: milek7 <me@milek7.pl>
Date: Sun, 1 Apr 2018 22:28:38 +0200
Subject: [PATCH] check for nullptr, crash fix

---
 Train.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Train.cpp b/Train.cpp
index 2ffb74b2..75c0bde3 100644
--- a/Train.cpp
+++ b/Train.cpp
@@ -4992,7 +4992,7 @@ bool TTrain::Update( double const Deltatime )
 
     // NOTE: crude way to have the pantographs go back up if they're dropped due to insufficient pressure etc
     // TODO: rework it into something more elegant, when redoing the whole consist/unit/cab etc arrangement
-    if( false == DynamicObject->Mechanik->AIControllFlag ) {
+    if( DynamicObject->Mechanik != nullptr && !DynamicObject->Mechanik->AIControllFlag ) {
         // don't mess with the ai driving, at least not while switches don't follow ai-set vehicle state
         if( ( mvControlled->Battery )
          || ( mvControlled->ConverterFlag ) ) {