Help Java Applet loop

[bluecora]

hi, im a noob programmer but i understand something about java. I watched all the video tutorials about java gamimg, but now I want to convert the game into applet but i can't, specially because it doesn't support loops :S

And if I use the method repaint() the FPS get too low...

import java.awt.Graphics;

import java.awt.AWTException;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Window;

import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JApplet;
import javax.swing.SwingUtilities;

public class HelloWorld extends JApplet implements MouseMotionListener , MouseListener,MouseWheelListener{ 
    
   /**
    * 
    */
   
   private static final long serialVersionUID = 1L;
   private Image menu;
   private ScreenManager s;
   private Image bg;
   private Image baseFinal;
   private Image baseInicial;
   private Image menuUtilizador;
   private Image botao1;
   private Image botao2;
   private Image skate;
   private Image rampa;
   //
   private Animation policia;
   private Animation ladrao;
   private Animation preso1;
   private Animation preso2;
   private Animation preso3;
   private Animation preso4;   
   private Animation celaFinal;

   //
   private String mess="";
   private String messe="";
   //
   private boolean running=true;
   private boolean start=true;
   private boolean mover=false;
   private boolean emCimaB1=true;
   private boolean arrastarSkate=false;
   private boolean arrastarRampa=false;
   boolean pararCela=false;
   boolean podeSubir = false;   
   boolean PrisioneiroSobe=false;

   boolean podeDescer=false;
   boolean bateuRampa=false;
   //
   private Sprite sprite;
   private Sprite cela ;
   //
   private long startingTime=System.currentTimeMillis();
   private long cumTime= startingTime;
   private long timePassed = System.currentTimeMillis() - cumTime;
   //
   private Point ponto;
   //
   private int skateX=1000;
   private int skateY=1000;
   private int rampaX=1000;
   private int rampaY=1000;
   //Called when this applet is loaded into the browser.
   
   public void init() {
      
      addMouseListener(this);
      addMouseMotionListener(this);
      addMouseWheelListener(this);
      mess="press escape to exit";
      setForeground(Color.WHITE);
      loadImages();
      
        //Execute a job on the event-dispatching thread; creating this applet's GUI.
   
        try {
            SwingUtilities.invokeAndWait(new Runnable() {
               
                public void run() {

                   startingTime=System.currentTimeMillis();
                  cumTime= startingTime;
                  
                  timePassed = System.currentTimeMillis() - cumTime;
                     cumTime+=timePassed;
                     
                     
                     update(timePassed);
                     updatePrisao( timePassed);
                     preso1.update(timePassed);
                     preso2.update(timePassed);
                     preso3.update(timePassed);
                     preso4.update(timePassed);
                     
                  
                     
                     try{
                        Thread.sleep(20);
                     }catch(Exception ex){}
                 
                 
                }
                }
                
                
                
                );
        } catch (Exception e) {
            System.err.println("createGUI didn't complete successfully");
        }
    
   }
      
   
   
    
    public void loadImages(){
bg=new ImageIcon("C:/Java/workspace/PAP/Imagens/back.png").getImage();
      
      baseFinal=new ImageIcon("C:/Java/workspace/PAP/Imagens/final.png").getImage();
      baseInicial=new ImageIcon("C:/Java/workspace/PAP/Imagens/inicial.png").getImage();
      skate=new ImageIcon("C:/Java/workspace/PAP/Imagens/skate.png").getImage();
      rampa=new ImageIcon("C:/Java/workspace/PAP/Imagens/rampa.png").getImage();
      
      menu=new ImageIcon("C:/Java/workspace/PAP/Imagens/menu.png").getImage();
      menuUtilizador=new ImageIcon("C:/Java/workspace/PAP/Imagens/menuUtilizador.png").getImage();
      
      
      
      
      botao1=new ImageIcon("C:/Java/workspace/PAP/Imagens/BotaoIniciar1.png").getImage();
      botao2=new ImageIcon("C:/Java/workspace/PAP/Imagens/BotaoIniciar2.png").getImage();
      
      Image police1= new ImageIcon("C:/Java/workspace/PAP/Policia/Image1.png").getImage();
      Image police2= new ImageIcon("C:/Java/workspace/PAP/Policia/Image2.png").getImage();
      Image police3= new ImageIcon("C:/Java/workspace/PAP/Policia/Image3.png").getImage();
      Image police4= new ImageIcon("C:/Java/workspace/PAP/Policia/Image4.png").getImage();
      Image police5= new ImageIcon("C:/Java/workspace/PAP/Policia/Image5.png").getImage();
      Image police6= new ImageIcon("C:/Java/workspace/PAP/Policia/Image6.png").getImage();
      Image police8= new ImageIcon("C:/Java/workspace/PAP/Policia/Image8.png").getImage();
      Image police9= new ImageIcon("C:/Java/workspace/PAP/Policia/Image9.png").getImage();
      Image police10= new ImageIcon("C:/Java/workspace/PAP/Policia/Image10.png").getImage();
      
      
      Image prisao=new ImageIcon("C:/Java/workspace/PAP/Imagens/prisao.png").getImage();

      
      
   //
   Image cela1=new ImageIcon("C:/Java/workspace/PAP/Imagens/primeiro.png").getImage();
   Image cela12=new ImageIcon("C:/Java/workspace/PAP/Imagens/primeiro1.png").getImage();
   Image cela13=new ImageIcon("C:/Java/workspace/PAP/Imagens/primeiro2.png").getImage();

   Image cela2=new ImageIcon("C:/Java/workspace/PAP/Imagens/segundo.png").getImage();
   Image cela22=new ImageIcon("C:/Java/workspace/PAP/Imagens/segundo1.png").getImage();
   Image cela23=new ImageIcon("C:/Java/workspace/PAP/Imagens/segundo2.png").getImage();
   
   Image cela3=new ImageIcon("C:/Java/workspace/PAP/Imagens/treceiro.png").getImage();
   Image cela32=new ImageIcon("C:/Java/workspace/PAP/Imagens/treceiro2.png").getImage();
   Image cela33=new ImageIcon("C:/Java/workspace/PAP/Imagens/treceiro3.png").getImage();
   
   Image cela4=new ImageIcon("C:/Java/workspace/PAP/Imagens/preso4.png").getImage();
   Image cela42=new ImageIcon("C:/Java/workspace/PAP/Imagens/preso41.png").getImage();
   Image cela43=new ImageIcon("C:/Java/workspace/PAP/Imagens/preso42.png").getImage();
   
   
   //
   
   
   Image ladrao1=new ImageIcon("C:/Java/workspace/PAP/Ladrao/ladrao2test.png").getImage();
   Image ladrao2=new ImageIcon("C:/Java/workspace/PAP/Ladrao/ladrao3test.png").getImage();
   Image ladrao3=new ImageIcon("C:/Java/workspace/PAP/Ladrao/ladrao4test.png").getImage();
   Image ladrao4=new ImageIcon("C:/Java/workspace/PAP/Ladrao/ladrao5test.png").getImage();
   Image ladrao5=new ImageIcon("C:/Java/workspace/PAP/Ladrao/ladrao6test.png").getImage();
   
   policia =new Animation();
   policia.addScene(police1, 50);
   policia.addScene(police2, 50);
   policia.addScene(police3, 50);
   policia.addScene(police4, 50);
   policia.addScene(police5, 50);
   policia.addScene(police6, 50);
   policia.addScene(police8, 50);
   policia.addScene(police9, 50);
   policia.addScene(police10, 50);
   
   //

   preso1 = new Animation();
   preso1.addScene(cela1, 150);
   preso1.addScene(cela12, 150);
   preso1.addScene(cela1, 150);
   preso1.addScene(cela13, 150);
   preso1.addScene(cela1, 150);
   
   preso2 = new Animation();
   preso2.addScene(cela2, 150);
   preso2.addScene(cela22, 150);
   preso2.addScene(cela2, 150);
   preso2.addScene(cela23, 150);
   preso2.addScene(cela2, 150);
   
   preso3 = new Animation();
   preso3.addScene(cela3, 150);
   preso3.addScene(cela32, 150);
   preso3.addScene(cela3, 150);
   preso3.addScene(cela33, 150);
   preso3.addScene(cela3, 150);
   
   preso4 = new Animation();
   preso4.addScene(cela4, 150);
   preso4.addScene(cela42, 150);
   preso4.addScene(cela4, 150);
   preso4.addScene(cela43, 150);
   preso4.addScene(cela4, 150);
   
   //

   ladrao = new Animation();
   ladrao.addScene(ladrao1, 50);
   ladrao.addScene(ladrao2, 50);
   ladrao.addScene(ladrao3, 50);
   ladrao.addScene(ladrao4, 50);
   ladrao.addScene(ladrao5, 50);
   
   sprite = new Sprite(ladrao);
   sprite.setX(180);
   sprite.setY(340);
   sprite.setVelocityX(0.2f);
   sprite.setVelocityY(0.3f);
   
   
   celaFinal = new Animation();
   celaFinal.addScene(prisao, 150);
   celaFinal.addScene(prisao, 150);
   cela = new Sprite(celaFinal);
   cela.setX(600);
   cela.setY(2);
   cela.setVelocityX(0);
   cela.setVelocityY(0.2f);
   

    }
    
    
    
    
  //update sprite 
     public void update (long timePassed){
        
        if(mover){
           if(policia.getIndex()==8)
           sprite.update(timePassed);
           if(policia.getIndex()!=8)
           policia.update(timePassed);
           
        }
        
        if(PrisioneiroSobe==false){
           
        
        if(sprite.getX()<-100 ){
           sprite.setVelocityX(Math.abs(sprite.getVelocityX()));
           mess="Ladrao Fugio";
        
        }else if(sprite.getX() + sprite.getWidth() >= 850){
           //sprite.setVelocityX(-Math.abs(sprite.getVelocityX()));
           mess="bateu lado Direito";
           sprite.setVelocityX(0.1f);
           sprite.setVelocityY(0.1f);
           
        }
        
     
        if( bateuRampa && sprite.getY() <=300 ){
        sprite.setVelocityY(Math.abs(sprite.getVelocityY()));
        mess="bateu em Cima";
        sprite.setY(300);
        
        }else if(sprite.getY() + sprite.getHeight() >= 600){
           //sprite.setVelocityY(-Math.abs(sprite.getVelocityY()));
           mess="bateu em Baixo"+policia.getIndex();
           sprite.setVelocityY(0);

        } 
        
        if(sprite.getX() + sprite.getWidth() >= rampaX &&  sprite.getX() + sprite.getWidth() <= rampaX+350){
           
           sprite.setVelocityY(0.2f);
           sprite.setVelocityX(0.15f);
        
           
           sprite.setVelocityY(-Math.abs(sprite.getVelocityY()));
           bateuRampa=true;
        }else if( bateuRampa && sprite.getY() + sprite.getHeight() >=470 && sprite.getX() + sprite.getWidth() >= 650 && sprite.getX() + sprite.getWidth() <= 756){
           mess="bateu na base final";
           sprite.setVelocityY(0);
           sprite.setVelocityX(0);
           podeDescer=true;
           sprite.setX(690);
           
           
        }
        }
        
     }


     public void updatePrisao(long timePassed){
        
        
        if(cela.getY() <= 0 ){
           pararCela=true;
           podeSubir=false;
        }
        
        
        if(pararCela && podeDescer==false){
           cela.setVelocityY(0);
     
        }
        
        if(cela.getY() + cela.getHeight() >650){
           podeDescer=false;
           podeSubir=true;
           PrisioneiroSobe=true;

        }
        
        if(PrisioneiroSobe){
        sprite.setX(cela.getX()+70);
        sprite.setY(cela.getY()+100);
        }
        if(podeDescer){
           cela.update(timePassed);
           mess="mexe";
        }
        
        if(podeSubir){
           cela.setY(cela.getY()-10);
           cela.setVelocityY(0.02f);
           cela.setVelocityY(-Math.abs(sprite.getVelocityY()));
        }
           
     }
     
     
     public void stop(){   
        running=false;
     }
    
    
    
    public void paint(Graphics g) {
       
      if(start){
      g.drawImage(menu,0,0,null);
      if(emCimaB1)
      g.drawImage(botao1,310,300,null);
      else
      g.drawImage(botao2,310,300,null);   
      }
      else{

      g.drawImage(bg,0,0,null);
      
      
      g.drawImage(baseFinal,605,450,null);
      g.drawImage(baseInicial,0,450,null);
      g.drawImage(menuUtilizador,600,281,null);
      
      g.drawImage(rampa,rampaX,rampaY,null);
      if(rampaY+50<=500 || rampaX<=200){
      g.drawImage(rampa,1000,1000,null);
      rampaX=1000;
      rampaY=1000;
      }
      
      g.drawImage(skate,skateX,skateY,null);
      if(skateY+20<=500 || skateX<=200){
         g.drawImage(skate,1000,1000,null);
         skateX=1000;
         skateY=1000;
         }

      g.drawImage(preso1.getImage(),200,0,null);
      g.drawImage(preso2.getImage(),300,0,null);
      g.drawImage(preso3.getImage(),400,0,null);
      g.drawImage(preso4.getImage(),500,0,null);

      g.drawImage(sprite.getImage(), Math.round(sprite.getX()),Math.round(sprite.getY()),null);
      g.drawImage(policia.getImage(),40,322,null);


      g.drawString(mess,400,600);
      g.drawImage(cela.getImage(), Math.round(cela.getX()),Math.round(cela.getY()),null);


      g.drawString(messe,40,50);
      
   
    }
  }
    
      //mouse listener interface
      public void mousePressed(MouseEvent e){
         
         if(e.getX()>608 && e.getX()<670 && e.getY()>312 && e.getY()<347)
            arrastarSkate=true;
         else
            arrastarSkate=false;
         
         if(e.getX()>723 && e.getX()<790 && e.getY()>316 && e.getY()<348)
            arrastarRampa=true;
         else
            arrastarRampa=false;
         
         
         
         if(e.getX()>=310 && e.getX()<=510 && e.getY()>=300 && e.getY()<=400 )
         start=false;
         
         this.ponto=e.getPoint();
         messe="Carregou "+ponto;
      
         e.consume();
      }
      
      
      

      public void mouseReleased(MouseEvent e){      
         this.ponto=e.getPoint();

         messe="Deixou "+ponto;

         e.consume();
   }
      
      public void mousecliked(MouseEvent e){}
      public void mouseEntered(MouseEvent e){}
      public void mouseExited(MouseEvent e){}



      //mouse motion interface
      public void mouseDragged(MouseEvent e){

         if(arrastarSkate){
         skateX=e.getX();
         skateY=e.getY();
         }
         
         if(arrastarRampa){
         rampaX=e.getX();
         rampaY=e.getY();
         }
         
         this.ponto=e.getPoint();
         messe="Arrastar"+ponto;
   
         e.consume();
      }
      
      public void mouseMoved(MouseEvent e){
         
         if(e.getX()>=310 && e.getX()<=510 && e.getY()>=300 && e.getY()<=400 )
         emCimaB1=false;
         else
         emCimaB1=true;
         
         this.ponto=e.getPoint();
         messe="mexendo"+ponto;
         
         
      }
      
      //Wheel interface
      public void mouseWhellMoved(MouseWheelEvent e){
         this.ponto=e.getPoint();
         messe="mexendo no wheel"+ponto;
         
         
         e.consume();
      }
      
      

      @Override
      public void mouseWheelMoved(MouseWheelEvent e) {

      }

      @Override
      public void mouseClicked(MouseEvent arg0) {
         
      }
      
      public void keyPressed(KeyEvent e){   
         
         int keyCode =((KeyEvent) e).getKeyCode();      
         if(start==false){
            
      if(keyCode==KeyEvent.VK_ENTER){
         mover=true;

      }   
      else{
         mess="pressed:"+KeyEvent.getKeyText(keyCode);
         e.consume();
         }
      }      
         if(keyCode==KeyEvent.VK_ESCAPE){
            stop();
         }   else{
            mess="pressed:"+KeyEvent.getKeyText(keyCode);
            e.consume();
         }
         
         if(keyCode==KeyEvent.VK_PRINTSCREEN){
           try {          
               Robot robot = new Robot();
               // Capture the screen shot of the area of the screen defined by the rectangle
               BufferedImage bi=robot.createScreenCapture(new Rectangle(800,600));
               ImageIO.write(bi, "jpg", new File("C:imageTest.jpg"));       
           } catch (AWTException e1) {
               e1.printStackTrace();
           } catch (IOException e1) {
               e1.printStackTrace();
           }
       }
   }
         
         
         

      
      //keyReleased
      public void keyReleased(KeyEvent e){
         int keyCode =e.getKeyCode();
         mess="Relessed:"+KeyEvent.getKeyText(keyCode);
         e.consume();
      }
      
      
      //last method from interface
      public void keyTyped(KeyEvent e){
         e.consume();
      }
      
      
    }

i dont put the repaint becouse i dont now where i go put :S

[Norm]

it doesn't support loops

Can you explain what you mean? Where do you want to have a loop?

i dont put the repaint becouse i dont now where i go put

You would call the repaint() method any time you have changed variables used by the paint method to draw on the screen.

You should change the code to use a JPanel and move the drawing code to its paintComponent() method.

[KevinWorkman]

I guess you didn't like the answers I already gave you? Crossposted: Applet loop problem

I guess I'm just wasting my time trying to help you.