-// global variables
-extern JoystickKeyboardController* g_main_controller;
-
-extern SDL_Surface* g_screen;
-
-extern ScreenManager* g_screen_manager;
-
-extern TextureManager* texture_manager;
-
-extern SoundManager* sound_manager;
-
-extern Config* g_config;
-
-extern tinygettext::DictionaryManager* dictionary_manager;