Вызов методов awt Frame из подкласса

Этот вопрос касается фреймов, Java и обработки .

Этот вопрос звучит довольно запутанно, но на самом деле это не так. Я постараюсь свести это к минимуму. Я создаю маленький мяч в игре-лабиринте, чтобы разобраться в физике и рендеринге. Пока что это был хороший опыт, но я наткнулся на кирпичную стену.
The general layout I decided on was to contain PApplets within a AWT Frame and have the Frame close. The reason for this is because I was told that you should only have on instance of a Papplet at a time.

PApplet is the Applet class in Processing, a rendering library.

I have 3 classes here including the main

public class Menu extends PApplet
{
//images and buttons 
PImage background, playbtn1, playbtn2, hsbtn1, hsbtn2, abbtn1, abbtn2, exbtn1,     exbtn2;
FBox pBtn, hBtn, eBtn;

FWorld menu;

//simple constructor
public Menu()
{

}

public void setup()
{
    size(600, 400);
    smooth();
    Fisica.init(this);
    menu = new FWorld();

    //loading and placing images
    background = loadImage("MenuAlt.jpg");
    System.out.println(background);
    playbtn1 = loadImage("play1.gif");
    playbtn2 = loadImage("play2.gif");
    hsbtn1 = loadImage("high1.gif");
    hsbtn2 = loadImage("high2.gif");
    exbtn1 = loadImage("exit1.gif");
    exbtn2 = loadImage("exit2.gif");

    //loading and placing buttons
    pBtn = new FBox(120, 150);
    pBtn.setPosition(135, 215);
    pBtn.setDrawable(false);
    hBtn = new FBox(120, 150);
    hBtn.setPosition(295, 215);
    hBtn.setDrawable(false);
    eBtn = new FBox(120, 150);
    eBtn.setPosition(455, 215);
    eBtn.setDrawable(false);

    //add item to world
    menu.add(pBtn);
    menu.add(hBtn);
    menu.add(eBtn);
}

public void draw()
{
    image(background, 0, 0);
    image(playbtn1, 80, 140);
    image(hsbtn1, 237, 135);
    image(exbtn1, 400, 140);

    mouseOver();
    menu.draw();
}

//close this frame an open a new level, high score or exit
//depending on what the use clicks
public void mousePressed()
{
    FBody pressed = menu.getBody(mouseX, mouseY);
    if (pressed == pBtn)
    {
        System.out.println("play game");
        this.getParent().getParent().getParent().getParent().setVisible(false);

        ExampleFrame x = new ExampleFrame(new Level("level1.txt"));
        x.setLocation(this.getParent().getParent().getParent().getParent().getLocation());
    }
    if (pressed == hBtn)
    {
        System.out.println("high scores");
        this.getParent().getParent().getParent().getParent().setVisible(false);

        /* these are just for finding the parent
 System.out.println(this.getName());
 System.out.println(this.getParent().getName());
 System.out.println(this.getParent().getParent().getName());
 System.out.println(this.getParent().getParent().getParent().getName());
 System.out.println(this.getParent().getParent().getParent().getParent().getName());
         */
        ExampleFrame x = new ExampleFrame(new HighScores()); //for testing, you can change this to new menu()
        x.setLocation(this.getParent().getParent().getParent().getParent().getLocation());
    }
    if (pressed == eBtn)
    {
        System.out.println("exit");
        System.exit(0);
    }
}

the exampleFrame class

public class ExampleFrame extends JFrame
{
    PApplet app;

    public ExampleFrame(PApplet emApp)
    {
        super("Ball Maze Game");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setLocation(200, 200);

        app = emApp;
        setSize(615,438);
        setVisible(true);

        setLayout(new BorderLayout());

        add(app, BorderLayout.CENTER);
        app.init();
    }
}

the main

public class Main
{
    public static void main(String[] args) 
    {
        ExampleFrame x = new ExampleFrame(new Menu());
    }
}

What needs to happen when mousePressed == ebtn is all the stuff in the Frame will be removed and a Highscores Screen will be loaded. highscores is almost the same as menu. There is no need to post code as there is enough here.

The second class is the one which acts as a frame and holds the PApplet

Bottom line, has anyone have any idea how to call the Frame methods from the PApplet or another way to remove all PApplets contents and load another PApplet in?