init method
Implementation
Future<bool> init([flags = SDL_INIT_EVERYTHING]) async {
if (sdlInit(flags) < 0) {
return false;
}
if (ttfInit() < 0) {
sdlQuit();
return false;
}
fps = gfx.FpsManager()
..init()
..setFramerate(60);
await ctor();
return true;
}