gregWiki/docs/reference/fmf-hook-naming.md

id, title, slug, description

id	title	slug	description
fmf-hook-naming	FMF hook and event naming	/reference/fmf-hook-naming	Canonical naming for hooks, events, and cross-language documentation stubs.

FMF hook and event naming

Target format

All new public hook and event identifiers should follow:

FMF.<Domain>.<EventOrHook>

• FMF — Fixed prefix (Greg Mod Framework / gregFramework hook namespace).
• <Domain> — Uppercase domain from the approved domain list. Describes where the signal belongs in the game (player, rack, server, economy, …).
• <EventOrHook> — PascalCase segment(s), usually OnSomething for events or a verb phrase for commands.

Examples (illustrative): FMF.RACK.CableSpinnerColorResolved, FMF.PLAYER.InputPoll, FMF.NETWORK.Cable.OnConnected.

Approved domain segments

Domains are closed by default. Add a new domain only via changelog + maintainer review.

Domain	Scope
GAMEPLAY	Rules, scoring, simulation beats not covered elsewhere
PLAYER	Local player input, camera, UI focus
EMPLOYEE	NPC staff, hiring, schedules
CUSTOMER	Contracts, SLA, satisfaction
SERVER	In-game server racks, VMs, power
RACK	Physical rack placement, mounting
NETWORK	Cables, switches, traffic
STORE	Shop cart, checkout
WORLD	Rooms, expansion, walls
UI	HUD overlays, menus (when not PLAYER)
SAVE	Save/load lifecycle
FRAMEWORK	Loader, bridge, diagnostics

Runtime IL2CPP (MelonLoader): greg.*

Harmony patches in gregFramework emit stable greg.<DOMAIN>.<Action> strings via GregHookName / GregEventDispatcher. That surface is documented in greg hooks registry (IL2CPP) (greg_hooks.json, regeneration, overlap with hand-written HarmonyPatches). It is separate from the FMF.* / FFM.* documentation constants below.

Native pipeline: GregNativeEventHooks (replaces HookNames)

Numeric EventIds are mapped to canonical greg.* strings in GregNativeEventHooks (source), aligned with greg_hooks.json where that file names the patched method. Logging uses GregNativeEventHooks.Resolve(uint); unknown ids → greg.SYSTEM.UnmappedNativeEvent.

GregCompatBridge (source) redirects deprecated hook spellings (including older documentation-style names) to the current greg.* string — see also legacy entries in greg_hooks.json.

Policy

• New documentation identifiers: FMF.<Domain>.* as above.
• New runtime subscriptions: always greg.* via GregHookName.Create or GregNativeEventHooks constants — see greg hooks catalog.

Cross-language stubs (documentation)

For each canonical hook, the wiki may add non-normative snippets:

Language	Convention
C#	FMF.Domain.OnSomething.Subscribe(...) or string literal
Lua	FMF.Domain.OnSomething:subscribe(...)
Rust	fmf::domain::on_something::subscribe(...)
Python	fmf.domain.on_something.subscribe(...)
TypeScript	FMF.Domain.OnSomething.subscribe(...)

Bindings are not auto-generated for all languages; stubs are for contributor clarity.

Related

• greg hooks catalog — EventId → greg.* (generated)
• FMF hooks catalog — Kurzüberblick / Redirect
• FMF hooks — deklarative Oberfläche (kann hinter der Core-Registry zurückstehen)