while(device->run())
	{
		switch (gameState)
		{
		case 0:  screenIntro->run();	break;	//Intro movie.
		case 10: screenTitle->run();	break;	//Title menu.
		case 20: /*setUpPause();*/	break;	//Pause menu.
		case 30: /*setUpMovie();*/	break;	//Skippable movie.
		case 40: screenSonic->run();	break;	                      //Normal stage.     40
		case 50: /*setUpSpec1();*/	break;	//Special stage 1.
		case 60: /*setUpSpec2();*/	break;	//Special stage 2.
		case 70: /*setUpBossS();*/	break;	//Boss stage.
		case 80: /*setUpFBoss();*/	break;	//Final Boss stage.
		case 90: screenEndng->run();	break;	//Ending movies.
		case 99: screenCrdts->run();	break;	//Credits.
		}
		if (driver->getReferenceCount())
		{
			driver->beginScene(true, true, SColor(255,128,0,0));
			smgr->drawAll();
			driver->endScene();
		}
		else
		{
			return 0;
		}
	}
	device->drop();
	return 0;
}