package lab6;

import javax.microedition.lcdui.*;

 public class MyCanvas extends Canvas implements CommandListener{

    Midlet midlet;
    int xPos;
    int yPos;
    int kolor;

    public MyCanvas(Midlet _midlet)
    {
    midlet = _midlet;
    addCommand( new Command( "Koniec", Command.EXIT, 0 ));
        setCommandListener(this);
    xPos=getWidth()/2;
    yPos=getHeight()/2;
    }

    protected void paint(Graphics g) {
    g.setColor(0xffffff);
    int screenWidth =getWidth();
    int screenHeight=getHeight();
    g.fillRect(0,0,screenWidth,screenHeight);
    g.setColor(kolor,kolor,kolor);
    g.fillRect(xPos,yPos,32,32);
    System.out.println("repaint");
    }
    protected void keyPressed(int keyCode)
    {
    switch(keyCode)
    {
    case KEY_NUM2:--yPos;
    kolor=50;
    break;
    case KEY_NUM8:++yPos;
    kolor=100;
    break;
    case KEY_NUM4:--xPos;
    kolor=150;
    break;
    case KEY_NUM6:++xPos;
    kolor=200;
    break;
    }
    repaint();
    serviceRepaints();
    }
    public void commandAction(Command c, Displayable d)
    {
    switch(c.getCommandType()) {
    case Command.EXIT:
    midlet.destroyApp( false );
    midlet.notifyDestroyed();
    break;
    }
  }
}