for (y = 10; y <= map.getHeight() - 3; y++) { map.placeObject(0, y, 'block'); map.placeObject(1, y, 'block'); } for (x = 5; x <= map.getWidth() - 5; x++) { map.placeObject(x, 0, 'block'); map.placeObject(x, 1, 'block'); }