From: Mikko Rasa <tdb@tdb.fi>
Date: Fri, 13 Feb 2015 00:48:03 +0000 (+0200)
Subject: Don't segfault if an emergency doesn't have a block
X-Git-Url: http://git.tdb.fi/?p=r2c2.git;a=commitdiff_plain;h=f74a48e60ff2e818ada3bbbfcb200e5cd2b633d6

Don't segfault if an emergency doesn't have a block
---

diff --git a/source/engineer/engineer.cpp b/source/engineer/engineer.cpp
index fc93cf6..68533bc 100644
--- a/source/engineer/engineer.cpp
+++ b/source/engineer/engineer.cpp
@@ -314,10 +314,13 @@ Object *Engineer::pick_object(const Vector &p)
 void Engineer::emergency(Block *block, const string &msg)
 {
 	set_status(msg);
-	TrackChain3D *tch3d = new TrackChain3D(layout_3d, *block);
-	tch3d->set_color(GL::Color(1.0f, 0.0f, 0.0f));
-	tch3d->set_layer(2);
-	emergencies.push_back(tch3d);
+	if(block)
+	{
+		TrackChain3D *tch3d = new TrackChain3D(layout_3d, *block);
+		tch3d->set_color(GL::Color(1.0f, 0.0f, 0.0f));
+		tch3d->set_layer(2);
+		emergencies.push_back(tch3d);
+	}
 }
 
 void Engineer::halt_event(bool h)