Breakout Game

I am developing a breakout game for a university assignment, its in for monday haha so not much time, i am confused on how to make this 'simple' game as i prefer visual basic, i have produced coding that has a bat and a ball that shoots randomly.
the preferences are:

-ball disappears when not hit
-ball changes direction when hit by bat
-bat moves under mouse control
-cannot play without money
-ball sets off randomly each time
-brick is destroyed when hit by ball

-deployment of 5 bricks, destroyed when hit
-5 goes for £1, displayed and updated as played

Code Java:

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import java.awt.*;
import java.awt.event.*;
import java.util.Random;
 
import javax.swing.*;
 
 
public class BreakOut extends JFrame implements ActionListener,MouseListener, MouseMotionListener {
 
 private JPanel paper;
 private JButton btnInsert£, btnGo;
 private JTextField txtHowManyGoes;
 private int x, y, xChange, yChange, diameter, batX, batY, ballX, ballY;
 private int preX=0, preY=0 ;
 private int counter;
 private Boolean firstTime=true, brk1;
 private JLabel lblDisplay;
 private Timer timer1;
 private Random RandNum;
 
 
 public static void main(String[] args){
 
  BreakOut breakOut = new BreakOut();
  breakOut.setSize(500, 500);
  breakOut.setBackground(Color.green);
  breakOut.setVisible(true);
 
 }
 
 public BreakOut(){
  setLayout(new FlowLayout());
 
  btnInsert£ = new JButton("Insert £");
  txtHowManyGoes = new JTextField(2);
  add(btnInsert£); add(txtHowManyGoes);
 
  btnGo = new JButton("Go!..");
  btnGo.setEnabled(false);
  add(btnGo);
  btnInsert£.addActionListener(this);
  btnGo.addActionListener(this);
 
  lblDisplay = new JLabel("....X Y Coordinates......");
  paper = new JPanel();
  paper.setPreferredSize(new Dimension(400, 400));
  paper.setBackground(Color.green);
  add(paper);
  add(lblDisplay);
  addMouseListener(this);
  addMouseMotionListener(this);
 
  x =0; y =0; xChange = 2; yChange =7; diameter = 11;
  counter=0;
 
  timer1 =new Timer (50, this);
 
 }
 
 public void moveBall(){
  Graphics myPen =  paper.getGraphics();
 
  myPen.setColor(Color.GREEN);
  myPen.fillOval(x, y, diameter, diameter);
 
  x = x + xChange ;
  y = y + yChange ;
 
  if (x <= 0 || x >= paper.getWidth())
   xChange = -xChange;
 
  if (y <= 0 || y >= paper.getHeight()){
 
   timer1.stop();
   counter--;
   txtHowManyGoes.setText(counter+"");
 
  }
  myPen.setColor(Color.blue);
  myPen.fillOval(x, y, diameter, diameter);
  ballX =x; ballY = y;
 
  }
 
 
 public void actionPerformed(ActionEvent event){
  //moveBall();
  if (event.getSource()==btnInsert£){
   btnGo.setEnabled(true);
   counter = counter + 5;
   txtHowManyGoes.setText(counter +"");
  }
  if (event.getSource()==timer1){
   moveBall();
  }  
  if (event.getSource()==btnGo){
   if (counter >0){
    Random randNum;  randNum = new Random();
    x= randNum.nextInt((paper.getWidth()));
    y=0;
    timer1 = new Timer(10, this)
    ;timer1.start();
   }
   else
    btnGo.setEnabled(false);
  }
 
 } 
 
 public void drawBat(){
 
  int batY;
  Graphics myPen =  paper.getGraphics();
  //paint(myPen); // stops flickering!
  batY = paper.getHeight()-20;  // bottom of the screen!  
  myPen.clearRect(0, 0, paper.getWidth(),
  paper.getHeight());
 // myPen.fillRect(batX-60,batY , 60, 10);
  myPen.setColor(Color.BLACK);
  batX = batX - 70;//co-ordinates of the batY position
  batY = batY - 30;
  //batY = paper.getHeight()-40;
  myPen.fillRect(batX,batY , 70, 10); //adjusts bat size
  preX = batX; preY = batY;
 
 }
 private void checkCollision(){
 
		Graphics myPen =  paper.getGraphics();
 
		// ball hitting bat!
		if ((ballY + ballX) >= 30 && ballY >= batX && ballY <= (batX + 60))
		//if((ballX >= batX)&& (ballX <= batX +30 && (ballY >= batY )))	
		yChange = -5;
}
 
 public void mouseMoved(MouseEvent event){
 
 
     lblDisplay.setText("X is " +x + " and Y is " + y );
  batX = event.getX();
  //batY = event.getY();
  drawBat();
  checkCollision();
 
  batX = batX - 70;
  batY = batY - 40;
  //batY = paper.getHeight()-40;
  //getMousePosition();
 }
 
 public void drawBrks(){
		Graphics myPen =  paper.getGraphics();
		myPen.setColor(Color.BLUE);
		if (brk1== true)
		 myPen.fillRect(80, 10, 40, 10);
 
 }
 public void mouseClicked(MouseEvent e){    
 /* x=1;y=1;
  Graphics myPen =  paper.getGraphics();
  myPen.setColor(Color.GREEN);
  myPen.fillRect(0, 0, paper.getWidth(),
      paper.getHeight());
  timer1 = new Timer(10, this);
  timer1.start(); 
 }*/
 }
 
 
 
 
 public void mouseEntered(MouseEvent e){
 }
 public void mouseExited(MouseEvent e){
 }
 public void mouseReleased(MouseEvent e){
 }
 public void mousePressed(MouseEvent e){
 }
 
 public void mouseDragged(MouseEvent e){
 }
 
}// end of BouncingBall

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So, what do you want us to do with it?

sorry i was not specific, i need help on the ball hitting the bat code what i have so far in the code is :

PHP Code:

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 private void checkCollision(){

        Graphics myPen =  paper.getGraphics();
            

        if ((ballY + ballX) >= 30 && ballY >= batX && ballY <= (batX + 60))

            yChange = -yChange; 
} 


---

this seems to work but it only allows me to hit it once then the game will not continue properly

You should better flush it and keep it iterating everytime by applying specific function provided to you by given API.

How does the game "not continue properly"? Do you get an Exception? Does it freeze up? Something else? Have you stepped through the program with a debugger?

PS- Mentioning your deadlines will make you seem impatient, which will actually decrease your chances of getting help here. There are hundreds of posts here, each with its own deadline and urgency.

Let me start fresh,
below is my coding for a breakout game, i have become stuck on the code that allows the ball to hit the bat and go back up, the ball will hit where the mouse is, not on the bat this bit of coding is:

PHP Code:

---

         private void checkCollision(){
             Graphics myPen =  paper.getGraphics();
             // ball hitting bat!
             if ((ballY + ballX) >= 30 && ballY >= batX && ballY <= (batX + 60)){
                 yChange = -yChange;
             }
         } 


---

once this collision has taken place you press the button go to let another ball come down, the ball will stop at the start of the screen, if you continue to press the 'go' button it will stay at the top of the screen, the program is a single class program which is why i do not have a main class, critism and comments are all welcome, i am looking for help on the above coding and if anyone can find the problem to why the program will not continue sending more balls down.
with the program it once it has hit the bat(mouse) it dissappears at the top of the screen wen it should bounce back not sure on this which is why i am looking for help from people who understand java a great deal more than i do
thank you

:

PHP Code:

---

import java.awt.*;
import java.awt.event.*;
import java.util.Random;

import javax.swing.*;


public class BreakOut extends JFrame implements ActionListener,MouseListener, MouseMotionListener {

     private JPanel paper;
     private JButton btnInsert£, btnGo;
     private JTextField txtHowManyGoes;
     private int x, y, xChange, yChange, diameter, batX, batY, ballX, ballY;
     private int preX=0, preY=0 ;
     private int counter;
     private Boolean firstTime=true, brk1;
     private JLabel lblDisplay;
     private Timer timer1;
     private Random RandNum;

  
     public static void main(String[] args){
      
      BreakOut breakOut = new BreakOut();
      breakOut.setSize(500, 500);
      breakOut.setBackground(Color.green);
      breakOut.setVisible(true);

 }
 
         public BreakOut(){
             setLayout(new FlowLayout());  
             btnInsert£ = new JButton("Insert £");
             txtHowManyGoes = new JTextField(2);
             add(btnInsert£); add(txtHowManyGoes);
             btnGo = new JButton("Go!..");
             btnGo.setEnabled(false);
             add(btnGo);
             btnInsert£.addActionListener(this);
             btnGo.addActionListener(this); 
             lblDisplay = new JLabel("....X Y Coordinates......");
             paper = new JPanel();
             paper.setPreferredSize(new Dimension(400, 400));
             paper.setBackground(Color.green);
             add(paper);
             add(lblDisplay);
             addMouseListener(this);
             addMouseMotionListener(this);  
             x =0; y =0; xChange = 2; yChange =7; diameter = 11;
             counter=0;
             timer1 =new Timer (50, this);
         }
     
  
         public void moveBall(){
             Graphics myPen =  paper.getGraphics();  
             myPen.setColor(Color.GREEN);
             myPen.fillOval(x, y, diameter, diameter);
             x = x + xChange ;
             y = y + yChange ;
             if (x <= 0 || x >= paper.getWidth()){
                 xChange = -xChange;  
             }
             if (y <= 0 || y >= paper.getHeight()){
                 timer1.stop();
                 counter--;
                 txtHowManyGoes.setText(counter+"");  
             }
             myPen.setColor(Color.blue);
             myPen.fillOval(x, y, diameter, diameter);
             ballX =x; ballY = y;
         }

         public void actionPerformed(ActionEvent event){
             //moveBall();
             if (event.getSource()==btnInsert£){
                 btnGo.setEnabled(true);
                 counter = counter + 5;
                 txtHowManyGoes.setText(counter +"");
             }
             if (event.getSource()==timer1){
                 moveBall();
             }
             if (event.getSource()==btnGo){
                 if (counter >0){
                     Random randNum;  randNum = new Random();
                     x= randNum.nextInt((paper.getWidth()));
                     y=0;
                     timer1 = new Timer(10, this);
                     timer1.start();
                 }
                 else btnGo.setEnabled(false);
             }
         }
 
         public void drawBat(){
             int batY;
             Graphics myPen =  paper.getGraphics();
             //paint(myPen); // stops flickering!
             batY = paper.getHeight()-20;  // bottom of the screen!
             myPen.clearRect(0, 0, paper.getWidth(),paper.getHeight());
             // myPen.fillRect(batX-60,batY , 60, 10);
             myPen.setColor(Color.BLACK);
             batX = batX - 70; batY = batY - 30;//Co-ordinates of the batY position
             //batY = paper.getHeight()-40;
             myPen.fillRect(batX,batY , 70, 10); //adjusts bat size
             preX = batX; preY = batY;
         }

         private void checkCollision(){
             Graphics myPen =  paper.getGraphics();
             // ball hitting bat!
             if ((ballY + ballX) >= 30 && ballY >= batX && ballY <= (batX + 60)){
                 //if((ballX >= batX)&& (ballX <= batX +30 && (ballY >= batY )))
                 //yChange = -5;
                 yChange = -yChange;
             }
         }
  
         public void mouseMoved(MouseEvent event){
             lblDisplay.setText("X is " +x + " and Y is " + y );
             batX = event.getX();
             //batY = event.getY();
             drawBat();
             checkCollision();
             batX = batX - 70;
             batY = batY - 40;
             //batY = paper.getHeight()-40;
             //getMousePosition();
         }
 
         public void drawBrks(){
             Graphics myPen =  paper.getGraphics();
             myPen.setColor(Color.BLUE);
             if (brk1== true){
                 myPen.fillRect(80, 10, 40, 10);
             }
         }
         
        public void mouseClicked(MouseEvent e){
        }

        public void mouseEntered(MouseEvent e){
        }

        public void mouseExited(MouseEvent e){
        }

        public void mouseReleased(MouseEvent e){
        }

        public void mousePressed(MouseEvent e){
        }
        
        public void mouseDragged(MouseEvent e){
        }

}// end of BouncingBall 


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Well here's your first problem- you should never use getGraphics() on a component. Extend the JPanel and override paintComponent() instead.

Recommended reading: Painting in AWT and Swing

Quote:

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if ((ballY + ballX) >= 30 && ballY >= batX && ballY <= (batX + 60)){
yChange = -yChange;

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this code is the problem i need it so... when the bat on x axis, and the ball comes to wher the bat is, the ball will change direction,


p.s. does anyone know a piece of coding that allows the mouse curser to stay in one point i have:
batX = batX - 70;
which makes it stay in line at the y axis of the bat but using the same code with 'x' does not work

That line might be one of your problems, but your painting is definitely also incorrect. That could possibly lead to a bunch of other problems (or cover up problems that are already there), so it's the first thing you should fix.