I've added some of my most commonly used lua scripts to a github repository. You can find them here: https://github.com/ribbiks/doom_lua
squarifier.lua
bevel.lua
Adds bevels to the intersection of all selected linedefs.
circularizer.lua
Transform a map from a rectangle into a ring.
flank.lua
Adds border linedefs to the interior of all selected linedefs.
join_identical_sectors.lua
Join (or merge) all selected sectors that have the same floor, ceiling, brightness, tag, effect, floortex, and ceiltex.
make242c.lua
Apply fake floor, ceiling, and colormap effects to all selected sectors.
select_overlapping_monsters.lua
Does what it says on the tin.
squarifier.lua
"Squarifies" all selected linedefs.
