Creating Menu Scenes:

AndEngine provides us another great feature, Menu Scene (extension of the Scene) With help of this class, we can easily create nice looking and also animated menus.

1. Creating Menu Scene:

private MenuScene menuScene;

private MenuScene createMenu()
{
    menuScene = new MenuScene(camera);
    
    final IMenuItem optionsMenuItem = new ScaleMenuItemDecorator(new SpriteMenuItem(0, region2, vbo), 2, 1);
    final IMenuItem playMenuItem = new ScaleMenuItemDecorator(new SpriteMenuItem(1, region1 vbo), 2, 1);
    
    menuScene.addMenuItem(optionsMenuItem);
    menuScene.addMenuItem(playMenuItem);
    
    menuScene.buildAnimations();
    menuScene.setBackgroundEnabled(false);
    
    menuScene.setOnMenuItemClickListener(this);
    return menuScene;
}

As mentioned before, we are using ScaleMenuItemDecorator to create animation, there are also different decorators provided by engine, but you can also create your own really easy, simply take a look at how does those decorators work. With mostly no effort, you can create great animations combining menu item decorators and entity modifiers.

While creating new SpriteMenuItem we had to provide int in first parameter, this is an id of the button, so latter we can have a reference to certain menu item.

We also setOnMenuItemClickListener to be able to add events while touching menu items, we will have to implement IOnMenuItemClickListener and add unimplemented method.

2. Using Menu Click Listener:

@Override
public boolean onMenuItemClicked(MenuScene pMenuScene, IMenuItem pMenuItem, float pMenuItemLocalX, float pMenuItemLocalY)
{
    handleButtonActions();
    
    switch(pMenuItem.getID())
    {
        case 0:
            //action
            return true;
        case 1:
            //action
            return true;
        default:
            return false;
    }
}

We switch clicked menu item id, so we can execute different action, after clicking different menu item easily. That`s all, menu scene is ready to be used.