Stuff

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.lang.Integer;
import java.lang.String;

class ball extends JComponent implements Runnable {
    //the x and y starting coords of the ball
    public static int ballX = 512, ballY = 400;
    Thread ball;
    static double theballY, theballX;
    //draw the ball
    public static void draw(Graphics g, int ballX, int ballY) {
        Graphics2D g2 = (Graphics2D) g;
        Shape c = new Rectangle(ballX, ballY, 50, 50);
        g2.setPaint(Color.white);
        g2.fill(c);
    }

    //ball thread code

    ball() {
        ball = new Thread(this);
        ball.start();
    }

    public void run() {

        while (ball.isAlive() == true) {
            try {

                ballX += theballX;
                ballY += theballY;
                if (ballY <= 0 || ballY >= 750) {
                    flipY();
                }
                if (ballX == drawpanel.paddleX - 50 &&
                    ballY >= drawpanel.paddleY &&
                    ballY <= drawpanel.paddleY + drawpanel.paddleHeight) {
                    flipX();
                    drawpanel.paddleHeight-=5;
                    drawpanel.score++;
                    drawpanel.updatescore();
                }
                if (ballX <= comppaddle.paddleX + 50 &&
                    ballY >= comppaddle.paddleY &&
                    ballY <= comppaddle.paddleY + 150) {
                    flipX();
                }
                if (ballX == -50 || ballX == 1100) {
                    ballX = 512;
                    ballY = 400;
                    drawpanel.score--;
                    drawpanel.updatescore();
                }
                if (ballX <= 1024 &&
                    ballX >= 974 &&
                    ballY >= drawpanel.paddleY &&
                    ballY <= drawpanel.paddleY + drawpanel.paddleHeight) {
                    flipY();
                }
                ball.sleep(1);
            } catch (InterruptedException e) {

            }
        }
    }

    public static void flipX() {
        theballX *= -1;
        ballX += theballX;
    }

    public static void flipY() {
        theballY *= -1;
        ballY += theballY;
    }

}


class paddle extends JComponent {

    //draw the paddle
    public void draw(Graphics g, int paddleX, int paddleY, int paddleHeight) {
        Graphics2D g2 = (Graphics2D) g;
        Shape c = new Rectangle(paddleX, paddleY, 50, paddleHeight);
        g2.setPaint(Color.white);
        g2.fill(c);

    }

}


class drawpanel extends JPanel implements MouseMotionListener {
    static ball theball = new ball();
    static paddle playerpaddle = new paddle();
    static comppaddle comppaddle = new comppaddle();
    static int paddleHeight = 150;
    static int paddleX = 974, paddleY = 400;
    static int score = 0;
    static String thescore;
    static JLabel scorecounter;

    drawpanel() {
        addMouseMotionListener(this);
        this.setBackground(Color.black);
        //timer for the paddle and ball to repaint
        ActionListener dostuff = new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                repaint();
            }
        };
        new Timer(0, dostuff).start();
        scorecounter = new JLabel(thescore);
        Font thefont = new Font("sansserif", Font.BOLD, 72);
        scorecounter.setSize(100,100);
        scorecounter.setLocation(350, 0);
        scorecounter.setFont(thefont);
        scorecounter.setForeground(Color.white);
        this.add(scorecounter);


    }

    //draw the ball and paddles on the frame
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        theball.draw(g, ball.ballX, ball.ballY);
        comppaddle.draw(g);
        playerpaddle.draw(g, paddleX, paddleY, paddleHeight);
    }

    public void mouseDragged(MouseEvent e) {

    }


    public void mouseMoved(MouseEvent e) {
        paddleX = e.getX();
        paddleY = e.getY();
        if (paddleY >= 650) {
            paddleY = 649;
        } else if (paddleY <= 0) {
            paddleY = 1;
        }
        if (paddleX > 974 || paddleX < 974) {
            paddleX = 974;
        }
        playerpaddle.repaint();

    }

    public static int getbally() {
        int ballY = theball.ballY;
        return ballY;
    }

    public static void updatescore() {
       thescore = String.valueOf(score);
       scorecounter.setText(thescore);
    }



}


class comppaddle extends paddle implements Runnable {
    static int paddleX = 0, paddleY = 400;
    public void draw(Graphics g) {
        Graphics2D g2 = (Graphics2D) g;
        Shape c = new Rectangle(paddleX, paddleY, 50, 150);
        g2.setPaint(Color.white);
        g2.fill(c);

    }

    Thread comppaddle;
    comppaddle() {
        comppaddle = new Thread(this);
        comppaddle.start();
    }

    public void run() {

        while (comppaddle.isAlive() == true) {
            int c;
            int ballY = 1;
            for (c = 1; c <= 800; c++) {

                ballY = drawpanel.getbally();
                paddleY = ballY - 50;

            }

            repaint();

        }
    }

}


public class networkpong {

    public static void main(String[] args) {
        int tmp;
        tmp = Integer.parseInt(args[0]);
        ball.theballX = tmp;
        ball.theballY = tmp;
        drawpanel panel = new drawpanel();
        JFrame window = new JFrame();
        window.setUndecorated(true);
        window.getContentPane().add(panel);
        DisplayMode dm = new DisplayMode(1024, 800, 16, 60);
        GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice d = e.getDefaultScreenDevice();
        d.setFullScreenWindow(window);
        d.setDisplayMode(dm);

    }


}