if p.x == mx and p.y == my then

        if near(p, mx,my) then

  local px,py = pixels(x),pixels(y)

    local cx,cy = pixels(point.x), pixels(point.y)
    if (cx-px)*(cx-px) + (cy-py)*(cy-py) < 16 then

    if near(point, x,y) then

end
function near(point, x,y)
  local px,py = pixels(x),pixels(y)
  local cx,cy = pixels(point.x), pixels(point.y)
  return (cx-px)*(cx-px) + (cy-py)*(cy-py) < 16