PoliceCar pc1 = new PoliceCar(70);
police_cars.add(pc1);
// police car grafikus hasznalata
DrawPoliceCar pold = new DrawPoliceCar();
GraphicsPoliceCar poldg = new GraphicsPoliceCar();
gr.addGraphicsObject(poldg, pc1);
poldg.setDraw(pold);
poldg.setPoliceCar(pc1);