public void render() { glPushMatrix(); { RenderUtils.setColor(Color.DARK_GRAY); glBegin(GL_QUADS); { float w = (float) width / (float) 2; glVertex3f(-w, 0f, w); glVertex3f(-w, 0f, -w); glVertex3f(w, 0f, -w); glVertex3f(w, 0f, w); } glEnd(); } glPopMatrix(); for (Block e : blocks) { e.render(); } }