\input regression-test.tex
\documentclass{article}
\usepackage{seatingchart}

\begin{document}
\START

\makeatletter
\RenewDocumentCommand{\sc@active@DrawSeating}{o}{\toggletrue{sc@drawn}}
\makeatother

\begin{luacode*}
  function sc_test_arc(name)
    local monotonic = true
    local minimum = math.huge
    local maximum_angle = 0
    for row = 1, AllSeats.rows do
      local offset = (row - 1) * AllSeats.cols
      for col = 1, AllSeats.cols do
        local seat = AllSeats[offset + col]
        maximum_angle = math.max(maximum_angle, math.abs(seat.rotate))
        if col > 1 then
          local previous = AllSeats[offset + col - 1]
          monotonic = monotonic and previous.x < seat.x
          local distance = math.sqrt((seat.x-previous.x)^2 + (seat.y-previous.y)^2)
          minimum = math.min(minimum, distance)
        end
      end
    end
    if minimum == math.huge then
      minimum = 0
    end
    texio.write_nl("log", string.format(
      "%s=monotonic:%s,min-distance:%.3f,max-angle:%.1f,storage:%d",
      name, tostring(monotonic), minimum, maximum_angle, #AllSeats))
  end
\end{luacode*}

\begin{seatingchart}[shape=arc,rows=5,seats per row=20]
  \directlua{sc_test_arc("ARC-5x20")}
\end{seatingchart}

\begin{seatingchart}[shape=arc,rows=2,seats per row=1]
  \directlua{sc_test_arc("ARC-2x1")}
\end{seatingchart}

\END