module debug(force=false) {
  if($scaddy_debug || force ) {
    $scaddy_debug=true;
    %children();
  }
}

module _debug_mesh() {
  %color([1,0,0,0.4]) children();
}

module debug_points(vector) {
    _debug_mesh()
      for(i = [0:1:len(vector)-1])
          translate(vector[i]) {
              sphere(1);
              text(str(i),size=4);
          }
}


module xy_axis(length=20,width=0.5) {
    _debug_mesh()
        move((-width/2)*[1,1,0])
        extrude(width)  {
            square([width,length]);
            square([length,width]);
            move(x(length)-y(1))
                text("x",halign="right",valign="top",size=5);
            move(y(length)-x(1))
                text("y",valign="top",halign="right",size=5);
        }
}

module xyz_axis(length=20,width=0.5) {
    xy_axis(length,width);
    _debug_mesh()
        move((-width/2)*[1,1,0]) rotate(x(90))
        extrude(width)  {
            square([width,length]);
            move(y(length)-x(1))
                text("z",valign="top",halign="right",size=5);
        }
}