private void renderGrid(Graphics g) {
		Coordinate worldSize = wb.getSize();
		g.setColor(Color.red);

		for (int i = 1; i <= worldSize.x; i++) {
			Coordinate c1 = coordinateToPixel(i, 0);
			Coordinate c2 = coordinateToPixel(i, worldSize.y);
			g.drawLine(c1.x, c1.y - blockHeight / 2, c2.x, c2.y);
		}

		for (int i = 1; i <= worldSize.y; i++) {
			Coordinate c1 = coordinateToPixel(0, i);
			Coordinate c2 = coordinateToPixel(worldSize.x, i);
			g.drawLine(c1.x + blockWidth / 2, c1.y, c2.x, c2.y);
		}
	}