Java 2cv oprv

public class Vagon {
    private Rectangle korba;
    private Ellipse lKolo;
    private Ellipse rKolo;
    private Triangle lNaraznik;
    private Triangle rNaraznik;
    private int x;
    private int y;

    public Vagon(int x, int y, int width, int height) {
        MyColor barvaKorby = MyColor.BRICKY;
        MyColor barvaKol = MyColor.STEEL;
        MyColor barvaNarazniku = MyColor.BLACK;
        double POMER_KORBY = 0.83;
        double POMER_VYSKY_KORBY = 0.6;
        double KOLO_POMER = 0.28;
        double POMER_ROZMERU_KOLA = 0.20;
        this.x = x;
        this.y = y;

        int korba_x = (int) (x + (1 - POMER_KORBY)*width/2);
        int sirkaKorby = (int)(POMER_KORBY*width);
        korba = new Rectangle(korba_x,y,sirkaKorby,(int) ( height * POMER_VYSKY_KORBY), barvaKorby);

        int velikostKola = (int) (POMER_ROZMERU_KOLA*height);

        int lKolo_x = (int) (x + (width * KOLO_POMER) - velikostKola/2.);
        int rKolo_x = (int) (x - (width * KOLO_POMER) + width - velikostKola/2.);

        lKolo = new Ellipse(lKolo_x, y + korba.getHeight(), velikostKola, velikostKola, barvaKol);
        rKolo = new Ellipse(rKolo_x, y + korba.getHeight(), velikostKola, velikostKola, barvaKol);

        int sirkaNarazniku = (int) (width * (1 - POMER_KORBY)/2.);
        int vyskaNarazniku = (int)(height * 0.2);

        lNaraznik = new Triangle(x, (int)(y + height*0.4), sirkaNarazniku,vyskaNarazniku,barvaNarazniku, Direction8.EAST);
        rNaraznik = new Triangle(x + sirkaKorby + sirkaNarazniku, (int)(y + height*0.4), sirkaNarazniku,vyskaNarazniku,barvaNarazniku, Direction8.WEST);
    }

    public void erase() {
        korba.erase();
        lKolo.erase();
        rKolo.erase();
        lNaraznik.erase();
        rNaraznik.erase();
    }

    public void paint() {
        korba.paint();
        lKolo.paint();
        rKolo.paint();
        lNaraznik.paint();
        rNaraznik.paint();
    }

    public void moveDown(int step) {
        y += step;
        korba.moveDown(step);
        lKolo.moveDown(step);
        rKolo.moveDown(step);
        lNaraznik.moveDown(step);
        rNaraznik.moveDown(step);
        this.paint();
    }

    public void moveRight(int step) {
        x += step;
        korba.moveRight(step);
        lKolo.moveRight(step);
        rKolo.moveRight(step);
        lNaraznik.moveRight(step);
        rNaraznik.moveRight(step);
    }

    public void setPosition(int x, int y) {
        this.moveDown(y - this.y );
        this.moveRight(x - this.x );
        this.paint();
    }

    public void setDimension() {

    }
}