else {
// El usuario aún no he escrito su nombre
final TextField nameTextField = new TextField("TYPE YOUR NAME", game.getSkin());
TextButton quitButton = new TextButton("OK", game.getSkin());
quitButton.addListener(new ClickListener() {
public void touchUp(InputEvent event, float x, float y, int pointer, int button) {
ConfigurationManager.addScores(nameTextField.getText(), game.score);
stage.clear();
done = true;
loadScreen();