fixed starting directly in-game with option -N

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/branches/irrlicht@3441 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/gui/engine.cpp

@@ -79,7 +79,14 @@ void clear()
     g_env->clear();
     g_current_screen = NULL;
 }
-    
+// -----------------------------------------------------------------------------  
+void cleanForGame()
+{
+    clear();
+    if(g_irrlicht_event_core == NULL) g_irrlicht_event_core = new IrrlichtEventCore();
+    g_device->setEventReceiver(g_irrlicht_event_core);
+}
+// -----------------------------------------------------------------------------  
 void switchToScreen(const char* screen_name)
 {    
     // clean what was left by the previous screen

src/gui/engine.hpp

@@ -183,6 +183,7 @@ namespace GUIEngine
     void free();
     void switchToScreen(const char* );
     void clear();
+    void cleanForGame();
     
     Screen* getCurrentScreen();
     void reshowCurrentScreen();

src/gui/state_manager.cpp

@@ -503,7 +503,7 @@ namespace StateManager
         g_menu_stack.clear();
         g_menu_stack.push_back("race");
         g_game_mode = true;
-        GUIEngine::clear();
+        GUIEngine::cleanForGame();
         input_manager->setMode(InputManager::INGAME);
     }