Init GUI as early as possible and show a loading screen during the first seconds when STK is loading

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@5965 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/guiengine/engine.cpp

@@ -790,6 +790,8 @@ namespace GUIEngine
     void init(IrrlichtDevice* device_a, IVideoDriver* driver_a, 
               AbstractStateManager* state_manager )
     {
+        printf("================ GUI ================\n");
+        
         g_env = device_a->getGUIEnvironment();
         g_device = device_a;
         g_driver = driver_a;
@@ -879,6 +881,10 @@ namespace GUIEngine
         
         // set event receiver
         g_device->setEventReceiver(EventHandler::get());
+        
+        g_device->getVideoDriver()->beginScene(true, true, video::SColor(255,100,101,140));
+        renderLoading();
+        g_device->getVideoDriver()->endScene();
     }   // init
     
     // ------------------------------------------------------------------------    

src/main.cpp

@@ -526,6 +526,12 @@ void initUserConfig(char *argv[])
 void initRest()
 {
     irr_driver              = new IrrDriver();
+    
+    // Init GUI
+    IrrlichtDevice* device = irr_driver->getDevice();
+    video::IVideoDriver* driver = device->getVideoDriver();
+    GUIEngine::init(device, driver, StateManager::get());
+    
     music_manager           = new MusicManager();
     sfx_manager             = new SFXManager();
     // The order here can be important, e.g. KartPropertiesManager needs
@@ -629,7 +635,7 @@ int main(int argc, char *argv[] )
                         logerrfile.c_str());
             }
         }
-        
+
         input_manager = new InputManager ();
         
         // Get into menu mode initially.
@@ -658,11 +664,6 @@ int main(int argc, char *argv[] )
 
         attachment_manager      -> loadModels      ();
 
-        // Init GUI prepare main menu
-        IrrlichtDevice* device = irr_driver->getDevice();
-        video::IVideoDriver* driver = device->getVideoDriver();
-        GUIEngine::init(device, driver, StateManager::get());
-
         //handleCmdLine() needs InitTuxkart() so it can't be called first
         if(!handleCmdLine(argc, argv)) exit(0);