- the stable master: `MSG_LIST_STABLED_PETS` both ways, the four mutations answered by one result byte, two slots priced from `StableSlotPrices.dbc` (500 and 50000 copper — the cap falls out of the data, corroborated by vmangos's `MAX_PET_STABLES` and the reference's `NUM_PET_STABLE_SLOTS`), rows seated by slot never by position (a petless hunter's list starts at a stabled row), slot 0 read from the wire because a dismissed pet has a row and no live unit, a re-list after every success because no result carries one, and `GetPetIcon` reading `CreatureFamily.dbc`'s icon column — which ships `Ability_Druid_CatForm` for both warlock families, asserted as shipped - master loot: `CMSG_LOOT_MASTER_GIVE` (the slot is a byte here where the roll family's is a u32) and `SMSG_LOOT_MASTER_LIST`; the click gate is the wire's slot-type byte and nothing else — the reference never asks who the master looter is — so a MASTER row fires `OPEN_MASTER_LOOT_LIST` instead of a take and auto-loot skips every non-ALLOW row; the candidate array is bucketed by raid subgroup into blocks of five (a dense list would have filed every candidate under the wrong "Group N"), an unresolved name is nil so `UPDATE_MASTER_LOOT_LIST` has something to repaint, and a give re-checks the row is still MASTER before sending; found on the way: a master looter in another raid subgroup lit the crown on your own portrait - `SetLootMethod` takes its third (threshold) argument; the reference's silent reset to Uncommon when it is absent is flagged and not adopted; the stable's model pane draws nothing yet — a stabled pet is a database row with no world entity, and a booth that renders from a bare display id is the next arc Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Important
Issues and pull requests are closed here. benilla is a solo project developed in a private tree; this repo is its export, published as squashed snapshots, so a PR here has nothing to land on. The best way to contribute is to join the Discord and report the bugs you find. Questions and ideas are welcome in the same place.
benilla speaks the original 1.12.1 protocol, so it connects to any server the real client could, and reads its game data at runtime from your own 1.12.1 install. Every file format and the network protocol are implemented from scratch, with no original client code, no third-party WoW crates, and no bundled game assets.
What works
- Formats: readers for the full asset stack (MPQ patch chain, BLP, DBC, ADT/WDT/WDL, M2, WMO), wired into Bevy as an asset source.
- World: streamed terrain out to the horizon, portal-culled WMOs with interior lighting, doodads and ground clutter, swimmable liquids, sky and weather, and the client's own day/night lighting, fog and gamma passes.
- Models: GPU-skinned M2s with the full animation controller, a near feature-complete particle system, ribbons, and animated gameobjects from doors to lifts.
- Characters: customization end to end, the armor texture composite, weapons with sheathing and enchant glows, shapeshift forms, stealth and mounts.
- Movement: a WoW-feel controller, networked movement in both directions, the server-granted modes from slow fall to roots, a follow camera with collision, boats, zeppelins and taxi flights.
- Networking: SRP6 auth through world-session crypto, the object mirror into the ECS, and live wire coverage from movement and chat through spells, party, quests, mail, trade, vendors, bank, loot, the auction house and PvP honor.
- UI: a from-scratch FrameXML + Lua engine driving the built-in interface, from the login and
character screens through the full HUD, the classic windows (guild, macros and key bindings
included), chat, nameplates, floating combat text and tooltips; third-party addons load from
a
benilla-config/AddOns/folder beside the executable (partial: AtlasLoot and Bagnon run, see below). - Combat: melee on the faithful swing law, ranged and Auto Shot, casting with GCD and cooldowns, combo points, crowd control that really holds you, and the spell visual pipeline.
- Audio: music, ambience and SFX under the client's own selection and crossfade rules, with interior and underwater transitions and zone reverb.
Where it's going
benilla is done when a 1.12.1 player can do everything here that they could in the original client, it looks and feels the same, and it runs from a download on Windows, Linux and macOS. No dates; the order is what is likely, not a promise.
- The rest of the basics: battlegrounds, guild charters, the stable master, meeting stones, GM tickets, master loot, cinematics and whatever else turns up.
- Addons, options and performance, ongoing.
- The no-brainer fixes from VanillaFixes, SuperWoW and the like.
- Playable downloads for Windows, Linux and macOS. Linux first.
Not planned: other expansions or client versions, Warden (anticheat).
Running it
You need a 1.12.1 (build 5875) client install for game data, a vanilla server to connect to, and stable Rust. Any 1.12.1 core works; vmangos is what development runs against, and cMaNGOS and the rest speak the same protocol.
WOW_DATA=/path/to/WoW/Data cargo run --release -p benilla
The server defaults to localhost:3724, the stock realmd auth port. Point WOW_HOST
at any IP or hostname, appending the auth port if yours is remapped
(WOW_HOST=play.example.com:5000). Credentials go in at the login screen, or set WOW_USER /
WOW_PASS to skip it.
Early inspiration and file format guidance came from the wowemulation-dev community, and warcraft-rs in particular.
benilla is an independent fan project, not affiliated with or endorsed by Blizzard Entertainment.
It ships no Blizzard content — no art, models, sounds, maps, MPQ contents or FrameXML; you
provide your own legally obtained 1.12.1 client. The interface code under
crates/benilla-app/assets/ui/ is ours, written to the client's own layout and API names so that
the windows look right and 1.12.1 addons find the names they expect.
World of Warcraft is a trademark of Blizzard Entertainment, Inc. Our own code is licensed under MIT or Apache 2.0, at your option.