# RF 4.55: feature request: load server modules from Lua scripts (`scripts\modules\*.lua`)

Game: RF 4.55 (Dragonborn), server v0.2.0, Windows build (stock gameserver.exe, SHA-256 96452fbd…).

Summary

The gameserver already has a module system, but every module has to be written in Go and compiled into gameserver.exe. The server's Lua runtime can only declare dungeons. A server owner who wants a small server-side feature (an autoloot, a boss alert, a system notice) has no way to add one without a new build.

I'd like gamemodule to also load modules written in Lua, through the gopher-lua runtime the server already ships for dungeons.

What's there today (read from the v0.2.0 binary's Go symbols)

• gommo/pkg/gamemodule.(*Set): Register, Settings, Commands, EnsureTables, Start, Stop, Run, with CommandSpec for % commands. A module implements Key, Settings, Requirements, Commands, EnsureTables, Start and Stop.
• The only module is rfmodule/season. Nothing loads a module from disk.
• gommo/games/rfscript (gopher-lua) has one verb, the dungeon (declareDungeon, parseMission, parseSpawnList). Inside a run a script can spawn, morph, count kills and grant rewards, but it has no hooks outside a dungeon run.

Request

Let gamemodule load Lua modules from scripts\modules\*.lua:

• Lifecycle: the same as a Go module: a key, settings in server_config, % commands with GM levels (gm.command_levels), tables, start and stop.
• Events (a script registers handlers for these):
  • player login and logout;
  • monster spawned and killed (the killer, the monster, the map);
  • player killed by a player (PvP);
  • Chip War start, end and result;
  • item dropped and looted;
  • chat (each channel);
  • auction listing;
  • level up;
  • enhance/upgrade result;
  • a timer.
• Actions (what a handler can call):
  • announce and system notice;
  • mail;
  • give an item or currency;
  • apply a buff;
  • warp.
• Safety: a module that fails validation is refused at load time, with the same checks and did-you-mean hints the dungeon scripts get, so a broken script can't take the server down.

What it would allow

Each of these is a small server-side feature that today needs a GoMMO build: