Hi, here is the working code, and let me tell you what was the problem.
The problem was in BouncyBall class
this part here (your code)
QUOTE
if ( right = true )
direction = 1;
else {
direction = 0; }
if ( left = true ) {
direction = 2;
}
else {
direction = 0; }
switch(direction) {
case 1: p1xPosition += 1;
break;
case 2: p1xPosition -= 1;
break;
}
And I changed it into this code(my code)
CODE
if ( right == true )
direction = 2;
else if ( left == true ) {
direction = 1;
}
else {
direction = 0; }
switch(direction) {
case 1: p1xPosition += 1;
break;
case 2: p1xPosition -= 1;
break;
}
}
Check it out you'll see the difference right away.
This is the entire code:
CODE
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.awt.geom.*;
import java.applet.AudioClip;
import java.net.*;
//create the class
public class BouncyBall extends JPanel implements Runnable, KeyListener {
// Set up variables
Image ball;
char key;
AudioClip slap;
boolean right = false;
boolean left = false;
int direction = 0;
int ballHeight = 30;
int ballWidth = 30;
int xPosition = 10;
int yPosition = 2;
int xMove = 1;
int yMove = 2;
float p1xPosition = 200;
float p1xMove = 0;
float compxPosition = 400;
float compxMove = 1;
int height;
Thread Ball;
boolean lol = false;
//Contructer method, sets up Thread called Ball and image called ball.
public BouncyBall() {
super();
Toolkit kit = Toolkit.getDefaultToolkit();
ball = kit.getImage("ball.gif");
Ball = new Thread(this);
Ball.start();
}
public void keyTyped (KeyEvent e) {
}
public void keyPressed (KeyEvent evt) {
if (evt.getKeyCode() == KeyEvent.VK_LEFT)
right = true;
if (evt.getKeyCode() == KeyEvent.VK_RIGHT)
left = true;
}
public void keyReleased (KeyEvent evt) {
if (evt.getKeyCode() == KeyEvent.VK_LEFT)
left = false;
if (evt.getKeyCode() == KeyEvent.VK_RIGHT)
right = false;
}
// Paints the necessary graphics for the program.
public void paintComponent(Graphics comp) {
Graphics2D comp2D = (Graphics2D) comp;
comp2D.setColor(Color.white);
comp2D.fillRect(0, 0, getSize().width, getSize().height);
height = getSize().height - ballHeight;
comp2D.setColor(Color.black);
BasicStroke pen = new BasicStroke(12F);
comp2D.setStroke(pen);
Line2D.Float ln1 = new Line2D.Float(p1xPosition, (getSize().height - 20F), (p1xPosition + (getSize().width / 10F)), (getSize().height - 20F));
comp2D.draw(ln1);
Line2D.Float ln2 = new Line2D.Float(compxPosition, 20F, (compxPosition + (getSize().width / 10F)), 20F);
comp2D.draw(ln2);
if (yPosition == -1)
yPosition = height - 20;
if (ball != null) {
comp2D.drawImage(ball,
(int) xPosition,
(int) yPosition,
this);
}
if ( right == true )
direction = 2;
else if ( left == true ) {
direction = 1;
}
else {
direction = 0; }
switch(direction) {
case 1: p1xPosition += 1;
break;
case 2: p1xPosition -= 1;
break;
}
}
//Thread creation
public void run(){
Thread thisThread = Thread.currentThread();
while (Ball == thisThread) {
//Ball movement
xPosition += xMove;
if (xPosition > (getSize().width - ballWidth)) {
xMove *= -1;
}
if (xPosition < 1) {
xMove *= -1;
}
yPosition += yMove;
if(yPosition < 1) {
yMove *= -1;
}
if(yPosition > (getSize().height - ballHeight)) {
yMove *= -1;
}
//Computer Movement
compxPosition += compxMove;
if (compxPosition < xPosition)
compxMove = 1;
if (compxPosition < 1)
compxMove = 1;
if (compxPosition > xPosition)
compxMove = -1;
if ((compxPosition + (getSize().width / 10)) > (getSize().width))
compxMove = -1;
//Tests to see whether the ball is touching the pads.
//Attempted player movement
p1xPosition += p1xMove;
repaint(); //Repaints graphics
try {
Thread.sleep(16); //frame pause 16 miliseconds
}
catch (InterruptedException e) { }
}
}
}
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