Lua library and limits

Useful library functions include pairs, ipairs, type, tonumber, tostring, assert, error, pcall, math, table, and string. string.gmatch(text, pattern[, start]) supports iteration, captures, position captures and empty matches. Eggox supplies this iterator because Luerl 1.5's built-in function is a stub. Patterns follow Lua syntax, not regular expressions.

on("start", function()
  for word in string.gmatch("moon wave star", "%a+") do log(word) end
end)

This is a sandbox, not a full desktop Lua installation. os, io, package, require, dofile, loadfile, loadstring, debug, print, eprint, collectgarbage, and string.dump are unavailable. The global load is Eggox's saved-progress function, not Lua's code loader. string.rep is capped at 65,536 bytes. Other library details follow the installed Luerl implementation.

Scripts have a 65,536-byte source limit (the Studio keeps a room's script as up to eight files of 16,384 bytes each, compiled into one) and at most 256 effects per event. Each file is its own block: local names stay in their file; share through globals or handlers. Ordinary item scripts have an 8 MiB heap ceiling and a 20 ms handler deadline. Published rooms add bounded allowances for their configured capacity. Script validation has a one-second deadline. A runaway handler is killed; the container restarts that script up to three times, clearing its timers. Repeated failure stops it. Use Restart in the playtest controls after fixing the draft.