SamandClaude Fable 5.1
9f204d894b
- a bot floating a body-height above the ground in mid-stride (B357): cmangos's Playerbots moves its bots as Player objects under `SMSG_MONSTER_MOVE`, and our ground clamp skipped anything that was not a Unit, so a splined Player kept the wire Z verbatim — and a spline is a straight chord, which over a hollow leaves the body in the air; kind is not a question the reference asks (`0x616620` runs every registered mover once per frame, reading only its own flag word), so one rule grounds every Unit plus a Player from the moment a server spline first moves it, never the body we steer; and a re-sent identical wire pose no longer leaves a unit floating (1921); the body we STEER is a mover too — the reference hands a ride's spline displacement to the same vertical-zeroing step as walking, so the spline owns XY and facing and the ground owns Z, closing a +0.47 yd gap at mid-chord on an Elwynn slope, endpoint included (1927) - the client refuses a stunned, silenced or pacified cast itself, in the requirement validator `0x6094f0` whose mounted and moving legs we already model, before any packet — and the three arms are not symmetric: STUNNED refuses everything, SILENCED and PACIFIED run only where `Spell.dbc PreventionType` declares them, so a silence stops casts and leaves melee abilities alone and a pacify does the reverse; the leg sits above the mounted block and below the equipped-item requirement, so stunned and missing the weapon you are told about the weapon; `PreventionType` is column 165, Auto Shot alone telling it from its look-alike neighbour; the preflight banner splits movement blockers from ability blockers, since a disarm or a pacify touches no movement gate; and the refusal sink is an explicit parameter rather than a ladder field, because a resource reachable twice from one system panics on the first live frame (1903) - a disarm greys what needs the hidden hand: the spell equipped-item test is `0x5f0c50`, walking all 23 equipment slots, rejecting a deprecated or genuinely broken item, and taking its slot mask from `AttributesEx3` (main-hand-only, off-hand-only, else every slot) — DISARMED strips the hidden hand's bit out of that mask, so a main-hand-only ability whose one allowed hand is the one the disarm took has an empty mask and dies, Heroic Strike greyed with its tooltip line red; using a worn weapon while disarmed answers `ERR_CANT_USE_DISARMED`, the client's own refusal at rung 15 of the item-use ladder's 20, above the bind-confirm arm and never a bag click (1903); and two stale claims go — `UNIT_FLAG_STUNNED` no longer says the idle selectors bail on it (0889 had refuted that at the bytes), and the charter's `ShowPetition` arm is rung #9 of that same ladder, read rather than reasoned - `UpdateSpells()` is twelve bytes and all of them are the event: it ends in a jump into the event signal with 0x104 = `SPELLS_CHANGED` in hand, whose repaint is FrameXML's alone, so a no-op would not have been faithful and our own repainting stand-in was wrong in both directions at once; it fires synchronously as the reference's does, at the cost of a fire-path refactor rather than a next-tick queue; `PlayerHasSpells()` is a hard-coded 1, no branch, no store read, pinned to answer 1 on an empty spellbook, where a plausible implementation diverges silently (1924); and three integration harnesses loaded every document against an empty base, so a self-sourcing chain file loaded as an empty shell with every handler missing — none of their lists could fail, so the fix lands with a guard watched failing first, `FadingFrame.xml`, one relative script reference and nothing else (1923) Co-Authored-By: Claude Fable 5.1 <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.
- Battlegrounds and meeting stones, then the long tail of small features that separates a working client from a finished one.
- 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.