}
public static void registerCoreGameScreens()
{
IGameScreen rendererBasic = new GameScreenBasic();
IGameScreen rendererCelest = new GameScreenCelestial();
registerScreen(rendererBasic); //Type 0 - blank
registerScreen(rendererBasic); //Type 1 - local satellite view
registerScreen(rendererCelest); //Type 2 - solar system
registerScreen(rendererCelest); //Type 3 - local planet
}