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fix(physics): movement-parity fixes - adjusted catch-up cap, autorun retail semantics, AP-30 retired

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Ports CMotionInterp::get_adjusted_max_speed (0x00527D00, byte-decoded:
bare rate unless RunForward; forward_speed x 4.0 when running;
current_speed_factor proven a ctor-constant 1.0 at 0x00528C34) and swaps
all five interpolation catch-up call sites to it - retail's
fUseAdjustedSpeed_ static (.data 0x0081F418 = 1) makes this the live
branch, so standing/walking remotes now catch up at ~2x runRate instead
of 4x too fast (the #41/#165 presentation family). Autorun now hard-
forces Run for its duration and cancels on every fresh forward press
(CommandInterpreter::HandleNewForwardMovement 0x006b3d60 is literally
SetAutoRun(0,1)); the old test pin codified the divergence. AP-30
retired: retail Frame::is_equal genuinely uses the 0.0002 epsilon - the
row recorded a non-divergence. Three catch-up test pins re-baselined to
retail semantics with citations. Full Release suite 9,983/0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-07-30 15:04:17 +02:00
parent 2123b44e8c
commit c0afcacbb2
10 changed files with 174 additions and 32 deletions
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3
docs/architecture/retail-divergence-register.md
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@ -119,7 +119,7 @@ accepted-divergence entries (#96, #49, #50).
---
## 3. Documented approximation (AP) — 92 active rows (AP-129 narrowed 2026-07-30 at the P4 Opus review fix — `CanMoveInto`/`RestrictionDB::IsAllowedIn` are now ported and fed end-to-end (CreateObject HouseOwner/HouseRestrictions/Monarch tail fields + live `House_UpdateRestrictions 0x0248`, resolved through `PhysicsEngine.Objects`), retiring the original "CanMoveInto entirely unmodeled, unconditional fail-closed" gap the row described — the review was triggered by `RestrictionObjPrevalenceInspectionTests` showing 103,766 of 729,888 installed EnvCells (the whole housing estate) carry a baked `RestrictionObj`, so the unconditional fail-closed default would have locked every house for every player including its own owner; AP-10 retired 2026-07-30 at Campaign P Slice P4 — restored retail's 0.1 m dry-corner water sink-in, full suite green proving the sticky-bit no-regression argument; AP-71 retired same slice — `check_entry_restrictions` ported at the head of the indoor `FindEnvCollisions` branch, `CellPhysics.RestrictionObj` wired from the DAT-baked `EnvCell` field in both the dev and production caching paths; AP-128 filed 2026-07-30 at the P3 Opus review — PK-timer clock basis; AP-25 retired 2026-07-30 at Campaign P Slice P1 — the vitae/enchantment-aware run/jump skill chain; AP-127 filed same slice for the two minor unmodeled bonus properties; AP-7 retired 2026-07-30 at Campaign P Slice P2 — `calc_friction`'s threshold ported to retail's confirmed 0.25f; its still-open cos(10°)-vs-0.99999536f Sledding constant question moved to AD-55)
## 3. Documented approximation (AP) — 91 active rows (AP-30 retired 2026-07-30 by the movement parity audit — retail Frame::is_equal genuinely uses the 0.0002 epsilon [byte-confirmed], so the row recorded a NON-divergence; acdream already matches; AP-129 narrowed 2026-07-30 at the P4 Opus review fix — `CanMoveInto`/`RestrictionDB::IsAllowedIn` are now ported and fed end-to-end (CreateObject HouseOwner/HouseRestrictions/Monarch tail fields + live `House_UpdateRestrictions 0x0248`, resolved through `PhysicsEngine.Objects`), retiring the original "CanMoveInto entirely unmodeled, unconditional fail-closed" gap the row described — the review was triggered by `RestrictionObjPrevalenceInspectionTests` showing 103,766 of 729,888 installed EnvCells (the whole housing estate) carry a baked `RestrictionObj`, so the unconditional fail-closed default would have locked every house for every player including its own owner; AP-10 retired 2026-07-30 at Campaign P Slice P4 — restored retail's 0.1 m dry-corner water sink-in, full suite green proving the sticky-bit no-regression argument; AP-71 retired same slice — `check_entry_restrictions` ported at the head of the indoor `FindEnvCollisions` branch, `CellPhysics.RestrictionObj` wired from the DAT-baked `EnvCell` field in both the dev and production caching paths; AP-128 filed 2026-07-30 at the P3 Opus review — PK-timer clock basis; AP-25 retired 2026-07-30 at Campaign P Slice P1 — the vitae/enchantment-aware run/jump skill chain; AP-127 filed same slice for the two minor unmodeled bonus properties; AP-7 retired 2026-07-30 at Campaign P Slice P2 — `calc_friction`'s threshold ported to retail's confirmed 0.25f; its still-open cos(10°)-vs-0.99999536f Sledding constant question moved to AD-55)
Wave-0 UI ledger repair (2026-07-10) retired stale AP-38, resolved the AP-84
collision, restored overwritten paperdoll rows as AP-92/AP-93, and registered
@ -150,7 +150,6 @@ AP-94..AP-112 for the confirmed retail-UI completion gaps.
| AP-26 | DDD interrogation answered with an empty dat-version list (count=0); retail reports actual dat iteration state | `src/AcDream.Core.Net/Messages/DddInterrogationResponse.cs:18` | ACE is satisfied by the empty ack; pattern from holtburger | A dat-patching-enabled server could push a full patch or reject on version mismatch — the lie is harmless only while the server never acts on it | DDD flow 0xF7E5/0xF7E6 |
| AP-27 | PlayerDescription trailer: GameplayOptions skipped by a 4-byte-aligned heuristic scan for a valid inventory parse; options blob captured opaque, never decoded (retail decodes + applies UI options) | `src/AcDream.Core.Net/Messages/PlayerDescriptionParser.cs:69` | Variable-length opaque blobs; mirrors holtburger's heuristics; follow-up issue extends when panels consume those sections | An options blob that coincidentally parses as a valid inventory (or inventory not landing at EOF) yields wrong/empty inventory+equipped at login; retail-persisted UI options silently ignored | ACE GameEventPlayerDescription.WriteEventBody; holtburger events.rs:195-218 |
| AP-28 | 3D audio falloff via OpenAL InverseDistanceClamped with picked constants (ref 2 m, max 1000 m, rolloff 1); voice pool/eviction IS cited to retail | `src/AcDream.App/Audio/OpenAlAudioEngine.cs:146` | Stands in for retail's DirectSound-era attenuation; r05 §5.3 documents inverse-square behavior but the three AL params were picked, not ported | Sounds attenuate at a different rate — too loud/quiet at range side-by-side; gain-driven eviction comparisons inherit the skew | FUN_00550ad0 (voice pool only); r05 §5.3 |
| AP-30 | AutonomousPosition diff cadence compares with epsilons (1 mm pos, 1e-4 normal, 1 mm dist); retail's `Frame::is_equal` is an exact float compare | `src/AcDream.Runtime/Gameplay/PlayerMovementController.cs:1110` | Sub-millimeter epsilon is well below any movement worth suppressing; comparisons are against last-SENT state so drift accumulates past the epsilon | Sub-epsilon drift suppresses an AP send retail would have made — negligible today; a consumer expecting retail's exact send-on-any-change cadence sees fewer packets | `Frame::is_equal` pc:700263 |
| AP-31 | Scenery placement drift + the 0xA9B1 road-edge tree — WB-upstream divergences from retail, ACCEPTED (**#49/#50**, 2026-05-11) | `src/AcDream.Core/World/SceneryGenerator.cs` (via `WbSceneryAdapter`) | Piecemeal patching against WB upstream is net-negative (the `e279c46` road-check attempt over-suppressed scenery elsewhere, reverted `677a726`); visible impact = a handful of trees a few meters off | The same WB-upstream class could hide a *larger* placement divergence elsewhere; revisit only via a coherent ACME-style per-vertex filter port | `CLandBlock::get_land_scenes`; ACME GameScene.cs:1074 per-vertex road filter |
| AP-32 | Cell shells DRAW +0.02 m above the dat EnvCell origin (`ShellDrawLiftZ`, z-fight vs coplanar terrain); retail draws at the origin verbatim. Split invariant: PHYSICS + visibility graph UNLIFTED (f35cb8b, **#119**-residual), every DRAW-space consumer of portal/cell geometry LIFTED (OutsideView color gate via `Build(drawLiftZ)`, seal/punch fans — **#130**) | `src/AcDream.App/Rendering/PortalVisibilityBuilder.cs` (`ShellDrawLiftZ`); `src/AcDream.App/Rendering/RetailPViewPassExecutor.cs` (`DrawPortalDepthWrite`) | Shell floors coplanar with terrain z-fight in our z-buffered frame; the 2 cm lift is the documented stand-in | A new draw-space consumer of portal/cell polygons that forgets the lift re-opens a 2 cm seam at horizontal aperture edges (the #130 top-edge strip, ~7 px at 2.4 m); a visibility consumer that picks up the LIFTED transform re-opens the #119-residual horizontal-portal side-cull | retail draws cell geometry at the dat EnvCell origin (no lift) |
| AP-33 | Interior-root look-in cells (**#124** sub-pass) draw their statics + DYNAMICS + emitters WHOLE — no per-part/per-object viewcone check; retail viewconeCheck's each vs the installed view (the **#131** portal closure: a server object in a look-in cell drew nowhere — dynamics-last culls cells absent from the main cone, and post-seal it z-fails anyway) | `src/AcDream.App/Rendering/RetailPViewRenderer.cs` (`DrawBuildingLookIns`) | The main viewcone has no entries for look-in cells; over-include is the safe direction (z-correct, repainted outside apertures by the root's shells); look-in cell counts are small (~1-3 cells) | A few wasted draws on content outside the doorway region (repainted); no under-draw direction remains | `viewconeCheck` 0x0054c250; nested `DrawCells` objects pc:432878 |