@Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D gfx = (Graphics2D) g; gfx.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); // Clear screen gfx.setColor(Constants.BACKGROUND_COLOR); gfx.fillRect(0, 0, getWidth(), getHeight()); // Render next frame grid.draw(gfx); // Trace path line if (tracing) { gfx.setColor(Constants.PATH_COLOR); gfx.setStroke(new BasicStroke(2)); for (int i = 1; i < pathLine.size(); i++) { Coordinate p = pathLine.get(i - 1); Coordinate n = pathLine.get(i); gfx.drawLine( (Constants.TILESIZE + Constants.MARGIN) * p.x + (Constants.TILESIZE / 2) + Constants.MARGIN, (Constants.TILESIZE + Constants.MARGIN) * p.y + (Constants.TILESIZE / 2) + Constants.MARGIN, (Constants.TILESIZE + Constants.MARGIN) * n.x + (Constants.TILESIZE / 2) + Constants.MARGIN, (Constants.TILESIZE + Constants.MARGIN) * n.y + (Constants.TILESIZE / 2) + Constants.MARGIN); } } }