pacman java -class code

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
 /*
 * keyPressedClassUI.java
 *
 * Created on Sep 29, 2010, 8:05:53 AM
 */
package pacManPlan;
 import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.geom.Ellipse2D;
 /**
 *
 * @author Administrator
 */
public class pacManPlanUI extends javax.swing.JFrame
        implements KeyListener, Runnable {
     Graphics draw;
    int x = 50, y = 110;
    int start = 40, angle = 280;
    boolean okMove = false;//thread control flag
    long delay = 10; //fps
    int xMove = 0;
    int yMove = 0;
    Thread move = null;
    long time;// = System.currentTimeMillis();
    Graphics2D draw2d;
    Polygon borderLeft = new Polygon();
    Polygon borderRight= new Polygon();
   Polygon borderbot = new Polygon();
    Polygon triangle = new Polygon();
    // int xOffset, yOffset;
    BasicStroke wallStroke = new BasicStroke(10,
            BasicStroke.CAP_ROUND,
            BasicStroke.JOIN_ROUND);
    //fix the tunnelling problem
    int pressed, clipDir;
//dots
    Ellipse2D dots[] = new Ellipse2D[10];
    Ellipse2D.Double ghost = new Ellipse2D.Double();
    Rectangle ghostRect = new Rectangle();
    Rectangle ghostRect2 = new Rectangle();//draw ghost
    int gx = 100;
    int gy = 40;
    int gxm = -1;       //ghost movement
    int gym = -1;
     public void setDots() {
        for (int x = 0; x < dots.length - 1; x++) {
            dots[x] = new Ellipse2D.Double();   //subclass
            dots[x].setFrame(x * 30, 40, 10, 10);
         }
    }
     public void setMaze() {
        //left border
        borderLeft.addPoint(0, 0);
        borderLeft.addPoint(0, 600);
        borderLeft.addPoint(10, 600);
        borderLeft.addPoint(10, 0);
        borderLeft.addPoint(0, 0);//back to starting point
          borderRight.addPoint(600,600);
        borderRight.addPoint(600,0);
        borderRight.addPoint(600,10);
        borderRight.addPoint(600,600);
         borderbot.addPoint(0, 600);
        borderbot.addPoint(10, 600);
       
  
         //draw.fillRect(x, y, WIDTH, start);
        triangle.addPoint(50, 50);
        triangle.addPoint(25, 100);
        triangle.addPoint(75, 100);
        triangle.addPoint(50, 50);
    }
     public void clipMaze() {
        Rectangle pacRec = new Rectangle(x - 5, y - 5, 25, 25);
        //clipDir is a flag
        clipDir = -1;
        if (borderLeft.intersects(pacRec)) {
            xMove = 0;
            yMove = 0;
            clipDir = pressed;
            //set the direction of travel when clipping
        }
         if (triangle.intersects(pacRec)) {
            xMove = 0;
            yMove = 0;
            clipDir = pressed;
        }
         //determine if ghost clips
        //determine which direction to go
        //random - bad idea
        //move in an intelligent direction
        //bounce back if clip
        switch (clipDir) {
            case 37:
            case 65:
                x -= 2;
                okMove = false;
            //break;
            case 38:
                y -= 2;
                okMove = false;
            //  break;
            case 39:
                x += 2;
                okMove = false;
            // break;
            case 40:
                y += 2;
                okMove = false;
        }
         for (int x = 0; x < dots.length - 1; x++) {
            if (dots[x].intersects(pacRec)) {
                draw2d.setColor(Color.black);
                draw2d.fill(dots[x]);
                dots[x].setFrame(-100, -100, 0, 0);
            }
        }
    }
     /** Creates new form keyPressedClassUI */
    public pacManPlanUI() {
        initComponents();
        draw = this.jPanel1.getGraphics();
        addKeyListener(this);
        move = new Thread(this);
        move.start();
        draw2d = (Graphics2D) draw;
         ghostRect.setSize(30, 30);
        ghostRect2.setSize(20, 20);
        setMaze();
        setDots();
     }
     public void paint(Graphics g) {
        super.paint(g);
        //kill flicker
        g.setColor(Color.black);
        g.fillRect(0, 0, jPanel1.getWidth(), jPanel1.getHeight());
         update(draw);
         //update reduces flicker in animation
     }
     public void update(Graphics g) {
         //erase pac
         g.setColor(Color.black);
        g.fillOval(x - 3, y - 3, 25, 25);
         g.setColor(Color.yellow);
        g.fillArc(x, y, 20, 20, start, angle);
        g.setColor(Color.red);
        draw2d.setStroke(wallStroke);
        draw2d.drawPolygon(triangle);
        draw2d.drawPolygon(borderLeft);
 draw2d.drawPolygon(borderRight);
        //draw ghost
         draw2d.setColor(Color.black);
        draw2d.fillOval(gx-2, gy -2, 35,35);
        draw2d.setColor(Color.pink);
        ghostRect.setLocation(gx, gy);
        ghost.setFrame(ghostRect);
         draw2d.fill(ghost);
         //ghost2
         draw2d.setColor(Color.black);
        draw2d.fillOval(gx-2, gy -2, 35,35);
        draw2d.setColor(Color.green);
        ghostRect.setLocation(150, 25);
        ghost.setFrame(ghostRect2);
        draw2d.fill(ghost);
         draw2d.setColor(Color.white);
//draw dots
        for (int x = 0; x < dots.length - 1; x++) {
            draw2d.fill(dots[x]);
        }
        //  clipMaze();
    }
     /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
         jPanel1 = new javax.swing.JPanel();
         setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
         jPanel1.setMaximumSize(new java.awt.Dimension(600, 600));
        jPanel1.setMinimumSize(new java.awt.Dimension(600, 600));
         javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 808, Short.MAX_VALUE)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 600, Short.MAX_VALUE)
        );
         javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
         pack();
    }// </editor-fold>
     /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        //java.awt.EventQueue.invokeLater(new Runnable() {
        //  public void run() {
        new pacManPlanUI().setVisible(true);
//            }
        //});
    }
     public void keyTyped(KeyEvent e) {
        int pressed = e.getKeyCode();
        String keyP = String.valueOf(pressed);
 
    }
     public void keyPressed(KeyEvent e) {
        int pressed = e.getKeyCode();
        String keyP = String.valueOf(pressed);
         //this.setTitle(okMove + " ");
  
     }
     public void keyReleased(KeyEvent e) {
        pressed = e.getKeyCode();
        String keyP = String.valueOf(pressed);
        //okMove = true;
        //        draw.clearRect(0,0,100,100);
//        draw.drawString(keyP + " pressed", 10, 30);
        //        draw.clearRect(0,0,100,100);
//        draw.drawString(keyP + " released", 10,50);
        //37 = left     = 100 number pad 4 = 65 A
        //38 = up
        //39 = right
        //40 = down
        //arrow keys
        //start the thread
        // if(move == null)
        //{
        //stop();
        //move.stop();
         //requires a Runnable frame
        //requires the run method
        // }
  
         // okMove = false;
        this.setTitle(pressed + " ");
        if (pressed == 37 || pressed == 100 || pressed == 65) {
            //draw.drawString("went left", 10, 70);
            //x-=2;
            //redraw the screen
            start = 220;
            //repaint();
             xMove = -2;
            yMove = 0;
            okMove = true;
 
        }
         if (pressed == 39) {
            start = 40;
//            x += 2;
//            repaint();
            xMove = 2;
            yMove = 0;
            okMove = true;
        }
        //up
        if (pressed == 38) {
            start = 130;
//            y -= 2;
//            repaint();
            xMove = 0;
            yMove = -2;
            okMove = true;
        }
         //down
        if (pressed == 40) {
            start = 310;
//            y += 2;
//            repaint();
            xMove = 0;
            yMove = 2;
            okMove = true;
        }
        if (pressed == 32) {
            okMove = false;
        }
        if (okMove) {
            time = System.currentTimeMillis();
             //reset when the movement starts
        }
     }
    // Variables declaration - do not modify
    private javax.swing.JPanel jPanel1;
    // End of variables declaration
     public void run() {
        //throw new UnsupportedOperationException("Not supported yet.");
        //long time = System.currentTimeMillis();
        //get the time the thread is started
        long sleepInterval = delay; //set to fps
        //this.setTitle(okMove + "in run");
//int counter = 0;
        while (true) {
           
            if (okMove) {
                clipMaze();
                x += xMove;
                y += yMove;
                // this.setTitle("in run");
                
                //calculate the sleep interval
                time += delay;
                sleepInterval = Math.max(delay, time - System.currentTimeMillis());
                //this.setTitle(sleepInterval + " ");
                try {
                    move.sleep(sleepInterval * 2);
                } catch (InterruptedException ex) {
                    //Logger.getLogger(keyPressedClassUI.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
             //chase pacman
            if(x < gx)
            {
                gxm = -1;//move ghost to left
            }
            else if(x > gx)
            {
                gxm = 1;
            }
            else if(x == gx)
            {
                gxm = 0;
            }
              if(y < gy)
            {
                gym = -1;//move ghost to left
            }
            else if(y > gy)
            {
                gym = 1;
            }
            else if(y == gy)
            {
                gym = 0;
            }
            //move the ghost
             //clipghost here
            gx += gxm;
            gy += gym;
            try {
                    move.sleep(sleepInterval * 2);
                } catch (InterruptedException ex) {
                    //Logger.getLogger(keyPressedClassUI.class.getName()).log(Level.SEVERE, null, ex);
                }
             update(draw);
        }//end of while
    }
}