erasing dots from map pacman java

Question

I'm coding my pacman, already have pacman move, loading map from txt, and collision with walls. Next step is dot eraser when pacman is on a dot field. I need any suggestion how to do it, I've tried to erase it by paiting dot at the same color as background, but it doesnt work. here is the code

board.java

public class Board extends JPanel implements ActionListener {

    private Timer timer;
    private Map m;
    private Player p;

    public Board(){
        m = new Map();
        p = new Player();
        addKeyListener(new Klawa());
        setBackground(Color.BLACK);
        setFocusable(true);
        timer = new Timer(25, this);
        timer.start();
    }

    @Override
    public void paint(Graphics g){
        super.paint(g);

    for(int x=0; x<14; x++){
        for(int y=0; y<14; y++){
            if(m.getMap(x,y).equals("s")){
                g.drawImage(m.getWall(),x *32,y *32, this);
            }
            if(m.getMap(x,y).equals("k")){
                g.drawImage(m.getDot(),x *32,y *32, this);
            }                 
        }
    }

    g.drawImage(p.getPlayer(),p.getTileX()* 32 ,p.getTileY() * 32,null);

    }

    public void erase(Graphics g){
    super.paint(g);
        if(m.getMap(p.getTileX(),p.getTileY()).equals("k")){            
            g.drawImage(m.getErase(),p.getTileX(),p.getTileY(), this);
        }
    }            



    public class Klawa extends KeyAdapter {

        @Override
        public void keyPressed(KeyEvent e){
            int keycode = e.getKeyCode();

            if (keycode == KeyEvent.VK_W){
                if(!m.getMap(p.getTileX(),p.getTileY() - 1).equals("s")){                    
                    p.move(0, -1);                  
                    }
                }           
            if (keycode == KeyEvent.VK_S){
                if(!m.getMap(p.getTileX(),p.getTileY() + 1).equals("s")){
                    p.move(0, 1);
                }
            }
            if (keycode == KeyEvent.VK_A){
                if(!m.getMap(p.getTileX() - 1,p.getTileY()).equals("s")){                                   
                    p.move(-1, 0);
                }
            }
            if (keycode == KeyEvent.VK_D){
                if(!m.getMap(p.getTileX() + 1,p.getTileY() ).equals("s")){
                p.move(1, 0);  
                }
            }                        
        }
        public void keyRelased(KeyEvent e){

        }
        @Override
        public void keyTyped(KeyEvent e){

        }


    }
    @Override
    public void actionPerformed(ActionEvent e) {

       repaint();
    }
}

map.java

public class Map {

    private Scanner m;
    private String Map[] = new String[16];
    private Image wall, dot, erase;

    public Map(){

       wall = new ImageIcon("C:\\Users\\Kotek\\Desktop\\pacman\\sciana.png").getImage();
       dot = new ImageIcon("C:\\Users\\Kotek\\Desktop\\pacman\\kropka.png").getImage();
       erase = new ImageIcon("C:\\Users\\Kotek\\Desktop\\pacman\\wymaz.png").getImage();
       openFile();
       readFile();
       closeFile();
    }

    public Image getWall(){
        return wall;
    }

    public Image getDot(){
        return dot;
    }

    public Image getErase(){
        return erase;
    }


    public String getMap(int x, int y){
       String index = Map[y].substring(x, x+1);
       return index;     
    }

    public void openFile(){
       try{
           m = new Scanner(new File("C:\\Users\\Kotek\\Desktop\\pacman\\mapa.txt"));
       }catch(FileNotFoundException e){
           System.out.println("Blad podczas ladowania mapy");
       }
    }
    public void readFile(){
       while(m.hasNext()){
           for(int i=0; i<14; i++){
               Map[i] = m.next();
           }
       }
    }
    public void closeFile(){
       m.close();
    }

}

Answer 1

In your class Map you should implement method

public void setMap(int x, int y, String  value ){
   //remove the "k" from the string
}

In the erase() method just clean model's cell and call repaint()