@SuppressWarnings("unused")
	private void drawGraph(Graphics2D g2d) {
		Graphics2D surface = (Graphics2D) g2d.create();

		for (int i = 0; i < graph.getWidth(); i++)
			for (int j = 0; j < graph.getHeight(); j++) {
				surface.setComposite(AlphaComposite.getInstance(
						AlphaComposite.SRC_IN, 0.3F));
				surface.setColor(Color.RED.brighter());
				if (graph.isWall(i, j))
					surface.draw(new Rectangle2D.Double(i
							* GameConfig.TILE_SIZE, j * GameConfig.TILE_SIZE,
							GameConfig.TILE_SIZE, GameConfig.TILE_SIZE));
			}
		g2d.dispose();
	}