Your game model can have more than one view: a GUI view, a console view, a status view, etc. Typically each view arranges to listen for changes in the model, and it then queries the model for the information it needs to render it’s particular view. This simple game was designed specifically to illustrate the concepts. The section named “Design” elaborates in more detail.
Addendum: This outline corresponds roughly to this architecture, symbolized below.
public class MVCOutline {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
//@Override
public void run() {
new MVCOutline().create();
}
});
}
private void create() {
JFrame f = new JFrame("MVC Outline");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.add(new MainPanel());
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
}
class MainPanel extends JPanel {
public MainPanel() {
super(new BorderLayout());
Model model = new Model();
View view = new View(model);
Control control = new Control(model, view);
this.add(view, BorderLayout.CENTER);
this.add(control, BorderLayout.WEST);
}
}
class Control extends JPanel implements ... {
private Model model;
private View view;
public Control(Model model, View view) {
this.model = model;
this.view = view;
}
}
class View extends JPanel implements Observer {
private Model model;
public View(Model model) {
this.model = model;
model.addObserver(this);
}
public void update(Observable o, Object arg) {
// update GUI based on model
}
}
class Model extends Observable {
public void next() {
this.notifyObservers(...);
}
}