-- NetHack bigroom bigrm-13.lua	$NHDT-Date: 1652196024 2022/05/10 15:20:24 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.0 $
--	Copyright (c) 2026 by Pasi Kallinen
-- NetHack may be freely redistributed.  See license for details.
--
-- Pillars

des.level_init({ style = "solidfill", fg = " " });
des.level_flags("mazelevel", "noflip");

des.map([[
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]]);

local pillar = [[
---
| |
---]];

filters = {
   -- 1: all pillars
   function(x, y) return true; end,
   -- 2: 3 vertical lines
   function(x, y) return (x%2 == 1); end,
   -- 3: checkerboard
   function(x, y) return (((x+y)%2) == 0); end,
   -- 4: center row
   function(x, y) return (y%2 == 1); end,
   -- 5: top and bottom rows
   function(x, y) return (y%2 == 0); end,
   -- 6: random 50%
   function(x, y) return (math.random(0,1) == 0); end,
   -- 7: corners and center
   function(x, y) return ((x/3)%2 == y%2); end,
   -- 8: slanted
   function(x, y) return ((x+1)//3 == y); end,
};

idx = math.random(1, #filters);

for y = 0,2 do
   for x = 0,6 do
      if (filters[idx](x, y)) then
         des.map({ coord = {12 + x*9, 4 + y*5}, map = pillar, contents=function() end });
      end
   end
end

des.region(selection.area(00,00,75,18), "lit");
des.wallify();
des.non_diggable();

des.stair("up");
des.stair("down");

for i = 1,15 do
   des.object();
end
for i = 1,6 do
   des.trap();
end
for i = 1,28 do
  des.monster();
end