public BBSimulator(String title) throws HeadlessException {
super(title);
world = new World(this);
info = new InfoPane();
worldPane.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
worldPane.add(world);
infoPane.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
infoPane.add(info.getContentPane());
contentPane.setOpaque(true); // content panes must be opaque
setContentPane(contentPane);
}
