@Override
public void start() {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
gd = ge.getDefaultScreenDevice();
if (!gd.isFullScreenSupported()) {
onError("Full-screen exclusive mode not supported");
System.exit(0);
}
// switch on FSEM
// gd.setFullScreenWindow(window);
window.setVisible(true);
renderThread.start();
updateThread.start();
inputThread.start();
}