Fixed crash when starting into an arena from command-line

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@9095 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/main.cpp

@@ -588,6 +588,17 @@ int handleCmdLine(int argc, char **argv)
             {
                 race_manager->setTrack(argv[i+1]);
                 fprintf ( stdout, "You choose to start in track: %s.\n", argv[i+1] ) ;
+                
+                Track* t = track_manager->getTrack(argv[i+1]);
+                if (t == NULL)
+                {
+                    fprintf(stderr, "Can't find track named <%s>\n", argv[i+1]);
+                    exit(1);
+                }
+                if (t->isArena())
+                {
+                    race_manager->setMinorMode(RaceManager::MINOR_MODE_3_STRIKES);
+                }
             }
             else
             {

src/modes/linear_world.cpp

@@ -50,6 +50,9 @@ LinearWorld::LinearWorld() : WorldWithRank()
 void LinearWorld::init()
 {
     WorldWithRank::init();
+    
+    assert(!m_track->isArena());
+    
     m_last_lap_sfx_played           = false;
     m_last_lap_sfx_playing          = false;
     const unsigned int kart_amount  = m_karts.size();