/*
* Autor: [email]gabriel@percutio.com[/email]
* GAME
*/
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.*;
public class Game extends JComponent implements Runnable{
private static long SLEEPTIME = 5;
private final static int R = 6;
// velocity vector of ball
private final static int DELTA_X = 1; //9;
private final static int DELTA_Y = 1; //2;
// ball position
private int x, y;
private final static int BAR = 40;
private final static int LEFT = -20;
private final static int RIGHT = +20;
private int move=0;
private int score=0;
public void run() {
// place ball at center
x = getWidth()/2;
y = getHeight()/2;
int dx = DELTA_X;
int dy = DELTA_Y;
long ts = System.currentTimeMillis();
for (;;) {
ts += SLEEPTIME;
long sleep = ts - System.currentTimeMillis();
if (sleep > 0) {
try {
Thread.sleep(sleep);
}
catch (InterruptedException e) {
return;
}
}
// move ball
x += dx;
y += dy;
// change direction if we hit a wall
if (x-R<=0)
dx = DELTA_X;
else if (x+R>=getWidth()-1)
dx = -DELTA_X;
if (y-R<=0)
dy = DELTA_Y;
else if (y+R>=getHeight()-1)
dy = getHeight()-2;
// change direction if we hit the bar
if (y+R>getHeight()-20 && x+R>move && x+R<move+BAR){
score +=5;
dy = -DELTA_Y;
System.out.println(score);
}
else if (y+R>getHeight()){
System.out.println("GO HOME LOOSER");
break;
}
// paint it
repaint();
}
}
protected void paintComponent(Graphics g) {
//BACKGROUND
g.setColor(Color.lightGray);
g.fillRect(0, 0, getWidth(), getHeight());
//BALL
g.setColor(Color.gray);
g.fillOval(x-R, y-R, 2*R, 2*R);
g.setColor(Color.white);
g.fillOval(x-R, y-R, R, R);
//BAR
g.setColor(Color.gray);
g.fillRect(move, getHeight()-20, BAR, 10);
//g.setColor(Color.gray);
//g.fillRect(move+2, getHeight()-18, BAR-4, 10);
//SCORE
Font scoreFont = new Font( "Helvetica", Font.BOLD, 15 );
g.setFont( scoreFont );
g.setColor( Color.gray);
g.drawString("SCORE: " +score, 12, 22);
//g.setFont( scoreFont );
//g.setColor( Color.white);
//g.drawString("SCORE: " +score, 10, 20);
}
public Dimension getPreferredSize() {
return new Dimension(400, 600);
}
public Game(){
this.setFocusable(true);
this.requestFocusInWindow();
this.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent evt){
if(evt.getKeyCode() == KeyEvent.VK_RIGHT && move < getWidth()-BAR){
move += RIGHT;
//System.out.println("right");
}
else if(evt.getKeyCode() == KeyEvent.VK_LEFT && move > 0){
move += LEFT;
//System.out.println("left");
}
if(evt.getKeyCode() == KeyEvent.VK_ESCAPE){
System.exit(0);
}
}
});
}
public static void main(String[] args) {
//JLabel aJLabel = new JLabel("SCORE:" +score);
JFrame aJFrame = new JFrame("PING");
Game go = new Game();
//aJFrame.getContentPane().add(aJLabel, BorderLayout.NORTH);
aJFrame.getContentPane().add(go, BorderLayout.CENTER);
aJFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
aJFrame.pack();
aJFrame.setVisible(true);
(new Thread(go)).start();
}
}
