Board.java
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import javax.swing.Timer;
public class Board extends JPanel implements ActionListener{
private final int width = 600;
private final int height = 600;
private int delay = 30;//time delay to update
private int board_x;//board x location
private int board_y;//board y location
private int ball_x;//ball x location
private int ball_y;//ball y location
private float ball_xv;//ball x violation
private float ball_yv;//ball y violation
//conditions
private boolean running = true;
private boolean contin= true;
private boolean tryagain = false;
//for keyboard
private boolean pause = false;
private boolean left = false;
private boolean right = false;
//for mouse motions
private boolean dragged = false;
private int howfarx = 0; //how far mouse click x coordinate from object's x coordinate
private Image ball;
private Image board;
private Timer timer;
private Image background;
private String msg = "presss";
public Board()
{
addKeyListener(new TAdapter());
addMouseMotionListener(new MAdapter());
addMouseListener(new MAdapter());
setBackground(Color.white);
load();
setFocusable(true);
init();
}
public void load()
{
board = new ImageIcon("C:\\javapics\\board.png").getImage();
ball = new ImageIcon("C:\\javapics\\ae.png").getImage();
background = new ImageIcon("C:\\javapics\\backgroud.png").getImage();
}
public void actionPerformed(ActionEvent e) {
if(running)
{
if(contin)
{
ballmoving();
boardmove();
lose();
}
}
repaint();
}
public void start()
{
ball_xv = -0.4f;
ball_yv = -0.3f;
board_x = 240;
board_y = 580;
ball_x = 300;
ball_y = 240;
}
public void init()
{
start();
timer = new Timer(delay,this);
timer.start();
}
public void paint(Graphics g)
{
super.paint(g);
if(contin)
{
g.drawImage(ball, ball_x, ball_y,this);
g.drawImage(board, board_x, board_y,this);
Toolkit.getDefaultToolkit().sync();
g.dispose();
}
if(tryagain)
{
String msg2 = "Press Enter to try again";
Font small = new Font("Arial", Font.BOLD, 15);
g.setColor(Color.black);
g.setFont(small);
g.drawString(msg2,200,300);
}
if(pause)
{
String msg2 = "Pause! Press Space to continue";
Font small = new Font("Helvetica", Font.BOLD, 15);
g.setColor(Color.black);
g.setFont(small);
g.drawString(msg2,200,300);
}
if(!running)
{
g.drawImage(background, 0, 0,this);
}
}
public void lose()
{
if(ball_y + 20 > height)
{
contin = false;
tryagain = true;
}
}
public void ballmoving()
{
if(ball_x < 1)
ball_xv = Math.abs(ball_xv);
else if((ball_x + 20) > (width-21))
ball_xv = -Math.abs(ball_xv);
if(ball_y < 1)
ball_yv = Math.abs(ball_yv);
else if((ball_y+20) > (height-21))
if(ball_x >= board_x && ball_x <= (board_x+100) )
ball_yv = -Math.abs(ball_yv);
update(delay);
}
public void update(int timedelay)//to update ball location on the screen
{
ball_x = (ball_x + (int)(ball_xv*delay));
ball_y = (ball_y + (int)(ball_yv*delay));
}
public void boardmove()//to play with keyboard
{
if(left){
board_x -= 40;
left = false;
}
if(right){
board_x += 40;
right = false;
}
}
private class MAdapter extends MouseAdapter
{
public void mousePressed(MouseEvent e)
{
int mousex = e.getX();
int mousey = e.getY();
if(mousex >= board_x && mousex <= (board_x+ 100))
if(mousey >= board_y && mousey <= (board_y+100)){
dragged = true;
howfarx = mousex - board_x;
}else {
dragged = false;
}
}
public void mouseDragged(MouseEvent e)
{
if(dragged){
board_x = e.getX() - howfarx;
board_x = Math.max(0, board_x);//to prevent overflow from sides
board_x = Math.min(board_x, (width-120));/////////////////////
}
}
public void mouseExited(MouseEvent e)
{
dragged = false;
howfarx = 0;
}
public void mouseMoved (MouseEvent e) {} // ignore these events
public void mouseEntered (MouseEvent e) {} // ignore these events
public void mouseClicked (MouseEvent e) {} // ignore these events
public void mouseReleased(MouseEvent e) {} // ignore these events
}
private class TAdapter extends KeyAdapter
{
public void keyPressed(KeyEvent e)
{
int key = e.getKeyCode();
if(key == KeyEvent.VK_Z)
{
msg = "pressed z";
if((board_x - 40) >= 0)//to prevent overflow from left side from
left = true;
else
left = false;//nothing
}
if(key == KeyEvent.VK_X)
{
msg = "pressed x";
if((board_x + 150) <= width)//to prevent overflow form right side of game area
right = true;
else
right = false;//nothing
}
if(key == KeyEvent.VK_ENTER){
start();
contin = true;
tryagain = false;
pause = false;
}
if(key == KeyEvent.VK_SPACE){
if(!pause){
contin = false;
pause = true;
tryagain = false;
}else{
contin = true;
pause = false;
tryagain = false;
}
}
if(key == KeyEvent.VK_ESCAPE){
running = false;
contin = false;
pause = false;
tryagain = false;
}
}
}
}
import javax.swing.*;
public class pinpong extends JApplet {
/**
* @param args
*/
public pinpong()
{
this.setContentPane(new Board());
}
public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame window = new JFrame();
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setSize(586, 630);
window.setLocationRelativeTo(null);
window.setTitle("pinpong");
window.setContentPane(new Board());
window.setResizable(false);
window.setVisible(true);
}
}
