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acdream/src/AcDream.Core/Physics
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Erik 3f34bca06f port #181: retail viewer step subdivision (calc_num_steps 0x0050a0b0) - radius-anchored steps + remainder final step + viewer-exempt small-offset abort 
The user's retail axiom (camera rock steady pressed into walls) vs our measured wall-press wander (~0.5mm/frame limit cycle, headless pin Issue181WallPressEquilibriumTests) sent us back to the decomp. Ghidra (clean, vs the BN x87 mush): retail VIEWERS subdivide the sweep into EXACTLY radius-length steps anchored at the start (offsetPerStep = offset*r/len, numSteps = floor(len/r)+1) with the final step recomputed mid-loop as the exact remainder (find_transitional_position 0x0050bdf0), and the negligible-offset abort is NON-viewer-only. Ours used ceil equal-slices for everything and aborted viewers too. Ported faithfully (pseudocode docs/research/2026-07-06-viewer-step-subdivision-pseudocode.md); non-viewer stepping already matched (TRANSITIONAL_PERCENT_OF_RADIUS=1.0).

Measurement: the wall-press limit cycle is UNCHANGED by the port (537.8um avg; a bit-exact 12-frame cycle: ~130um/frame inward creep x11 then a 2.6mm snap). With adjust_to_plane + adjust_sphere_to_poly now also Ghidra-verified faithful, the residual mm cycle is likely retail-class plateau physics - invisible at retail's 60fps vsync, tear-interleaved into visible stripes at our ~1500fps unsynced. The decisive user test: VSync ON (Settings/F11). Fallback discriminator: cdb-trace retail's viewer at a wall press. Suites green (Core 2600 / App 733 / UI 425 / Net 385).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 22:30:37 +02:00
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Motion fix #175 (take 2): the cycle lookup used the bare style key — silent no-op 2026-07-05 17:10:19 +02:00
AceModernCommandCatalog.cs feat(L.1b): dual MotionCommand catalog — AceModern runtime + Retail2013 conformance 2026-06-30 22:13:36 +02:00
AnimationCommandRouter.cs fix(anim): Phase L.1b route motion commands 2026-04-28 10:46:22 +02:00
AnimationHookRouter.cs feat(anim): Phase E.1 hook router + GameWindow wiring 2026-04-18 16:30:23 +02:00
AnimationSequencer.cs perf(pipeline): MP-Alloc Task 1 - reuse animation pose buffers per entity 2026-07-05 23:40:57 +02:00
BSPQuery.cs fix #180 (root): retail adjust_to_plane - PathClipped stops now resolve to the contact point, not a step boundary 2026-07-06 17:20:46 +02:00
BuildingPhysics.cs T6 (BR-7) C3: per-cell shadow architecture - flood registration, building channel, per-cell query; b3ce505 stopgap DELETED (closes #99) 2026-06-11 14:37:50 +02:00
CellArray.cs feat(physics): Stage 1 — CellArray ordered/deduped cell collection (retail CELLARRAY) 2026-06-03 08:54:45 +02:00
CellDump.cs feat(phys): A6.P3 #98 Step 2 — cell-dump probe + roundtrip test 2026-05-23 15:16:56 +02:00
CellSurface.cs fix(phys): #111 - ground the validated claim via PHYSICS walkable polygons, not the CellSurface triangle soup 2026-06-10 14:21:59 +02:00
CellTransit.cs chore: strip world-load deep-dive diagnostic probes 2026-06-23 00:23:15 +02:00
CollisionExemption.cs fix(physics): #137 Task 3 — port obstruction_ethereal verbatim; retire AD-7 shim 2026-06-24 19:20:02 +02:00
CollisionPrimitives.cs feat(physics): Task 2 — true sphere collision primitive (CSphere::intersects_sphere) 2026-06-24 19:08:53 +02:00
EntityCollisionFlags.cs feat(physics): live-entity collision plumbing (Commit A) 2026-04-29 13:12:56 +02:00
GfxObjDump.cs feat(phys): A6.P3 #98 — GfxObj dump infrastructure (ACDREAM_DUMP_GFXOBJS) 2026-05-23 20:24:26 +02:00
IAnimationHookSink.cs feat(anim): Phase E.1 hook router + GameWindow wiring 2026-04-18 16:30:23 +02:00
IMotionCommandCatalog.cs feat(L.1b): dual MotionCommand catalog — AceModern runtime + Retail2013 conformance 2026-06-30 22:13:36 +02:00
InterpolationManager.cs feat(motion): L.3 M1 — fresh InterpolationManager port + retail spec 2026-05-05 14:56:42 +02:00
InterpretedMotionFunnel.cs fix(R4-V5): moveto wedge - StopCompletely's missing animation dispatch orphaned pending_motions; + the P1 autonomous store family 2026-07-03 14:15:36 +02:00
LandDefs.cs feat(physics #145): Slice 1 — Position/Frame types + LandDefs.GetBlockOffset (0x0043e630) 2026-06-21 10:30:20 +02:00
MotionCommandResolver.cs feat(L.1b): dual MotionCommand catalog — AceModern runtime + Retail2013 conformance 2026-06-30 22:13:36 +02:00
MotionInterpreter.cs feat(physics): R5-V4 behavioral slice — head stance dispatch (all mt) + #164 autonomy bit + mt-0 wire flags 2026-07-05 10:18:26 +02:00
MotionSequenceGate.cs feat(L.2g-S1): retail movement-event staleness gate (DEV-6) 2026-07-02 15:44:06 +02:00
PhysicsBody.cs fix(R4-V5): remote transition links stripped by the detached-object guard - door swings snapped (adds register TS-40) 2026-07-03 15:10:16 +02:00
PhysicsDataCache.cs fix(physics): D8 — RemoveCellsForLandblock; cell transforms rebase per apply 2026-06-24 19:34:16 +02:00
PhysicsDiagnostics.cs fix(#171): gate NPC UP hard-snaps while stuck — the sticky/snap tug-of-war (gate-1 residuals) 2026-07-05 09:34:25 +02:00
PhysicsEngine.cs fix #137 (mechanism 2): BSP full-hit stubs leaked sliding normals — the corridor absorbing wedge 2026-07-05 18:08:29 +02:00
PhysicsResolveCapture.cs test: fix PhysicsResolveCapture/PhysicsDiagnostics static-leak isolation 2026-06-02 15:20:24 +02:00
PlayerWeenie.cs feat(R3-W3): verbatim jump family — charge gates, jump_is_allowed chain, epsilon fixes; StandingLongJump misattribution retired (closes J5, J6, J7-interp-side, J16-epsilons) 2026-07-02 22:37:07 +02:00
PortalInfo.cs feat(physics): Phase 2 — wire CellBSP + Portals into CellPhysics 2026-05-19 16:52:20 +02:00
PortalPlane.cs fix(core): Phase B.3 — add centroid + radius bounds to PortalPlane crossing test 2026-04-12 19:08:46 +02:00
Position.cs refactor(physics #145): Slice 1 — rename Frame->CellFrame to avoid DatReaderWriter.Types.Frame collision 2026-06-21 10:34:36 +02:00
RawMotionState.cs feat(R3-W1): retail state completion — action FIFOs, MovementParameters, MotionNode, WeenieError renumber (closes J2, J16-codes) 2026-07-02 22:12:33 +02:00
RemoteMotionCombiner.cs feat(physics): R5-V1 — port PositionManager/Sticky/Constraint + TargetManager (Core, unwired) 2026-07-03 19:34:49 +02:00
RemoteWeenie.cs fix(R4-V5): #160 remote run movetos in slow motion - remote interps had no weenie, so retail's run-rate chain never reached my_run_rate 2026-07-03 16:18:40 +02:00
ResolveResult.cs feat(A): wire SweepEye to the verbatim update_viewer (start-cell + fallbacks) 2026-06-05 11:10:32 +02:00
Retail2013CommandCatalog.cs feat(L.1b): dual MotionCommand catalog — AceModern runtime + Retail2013 conformance 2026-06-30 22:13:36 +02:00
ServerControlledLocomotion.cs feat(R4-V4): REMOTE cutover - per-remote MoveToManager; RemoteMoveToDriver + PlanMoveToStart DELETED (closes M1-remote, M4/M5/M6/M8-remote; retires AD-8, AD-9, AP-8, AP-9) 2026-07-03 12:18:05 +02:00
ShadowObjectRegistry.cs feat(physics): Task 2 — true sphere collision primitive (CSphere::intersects_sphere) 2026-06-24 19:08:53 +02:00
ShadowShape.cs feat(phys): add ShadowShape record (no callers yet) 2026-05-24 15:07:40 +02:00
ShadowShapeBuilder.cs fix #175: door BSP collision poses at the motion-table closed pose 2026-07-05 17:00:06 +02:00
TerrainSurface.cs fix(scenery): #49 9×9 loop, per-spawn building check, triangle slope 2026-05-07 21:15:11 +02:00
TransitionTypes.cs port #181: retail viewer step subdivision (calc_num_steps 0x0050a0b0) - radius-anchored steps + remainder final step + viewer-exempt small-offset abort 2026-07-06 22:30:37 +02:00
WalkMissDiagnostic.cs feat(physics): WalkMissDiagnostic aggregator for ISSUES #83 probe spike 2026-05-20 10:31:39 +02:00