public void drawCities(){
        for ( int r = 0; r < GameConstants.WORLDSIZE; r++ ) {
            for ( int c = 0; c < GameConstants.WORLDSIZE; c++ ) {
                City city = game.getCityAt(new Position(r, c));
                if (city != null){
                    CityFigure cf = new CityFigure(city,
                            new Point( GfxConstants.getXFromColumn(c),
                                    GfxConstants.getYFromRow(r)));
                    cityFigures.put(new Position(r, c), cf);
                    editor.drawing().add(cf);
                }
            }
        }
    }