!7

sclass BackgroundAI > DynModule {
  int cores;

  visualize {
    final JSpinner spinner = jSpinner(cores, 0, numberOfCores());
    main.onChange(spinner, r { setField(cores := intFromSpinner(spinner)) });
    ret /*jscroll_trackWidth*/(makeForm2(
      jDummyMultiLineLabel("Cores to use for\nbackground AI (0-" + numberOfCores() + "):"),
        spinner,
      jLabel("Current activity:"),
        "-"));
  }
}