fix(physics): AP-152 — dispatch collision shapes BSP-first, at emission and at the cell flood
The register row predicted "catching or stopping on a doorway sill". That
symptom could not have been occurring. `Transition.BspOnlyDispatch`
(TransitionTypes.cs:1348, landed 2026-05-25 as A6.P7) already skipped both
primitive branches (:3911, :3954) whenever the target's wire PhysicsState
carries HAS_PHYSICS_BSP_PS, and ACE sets that bit from CSetup.HasPhysicsBSP
for every affected Setup. The extra primitive was never tested for collision.
The live defect was CELL MEMBERSHIP. The same shape list feeds
`ShadowObjectRegistry.BuildFloodSpheres`, which had no such guard and
preferred Cylinders over everything whenever any Cylinder existed — retail's
SECOND priority applied ahead of its first. For the 73 CylSphere+BSP Setups
acdream therefore flooded shadow cells from the cylinder and never from the
slab: an object absent from cells it physically occupies, which is the
#98 / #168 symptom class, not the door-collision class the row named.
Retail, re-disassembled from the PDB-paired binary (v11.4186, CodeView GUID
9e847e2f-777c-4bd9-886c-22256bb87f32, check_exe_pdb.py MATCH) rather than
taken from Binary Ninja, which drops flag tests:
CPhysicsObj::FindObjCollisions @0x0050f050
0x0050f165 test dword [esi+0xa8], 0x10000
0x0050f16f je 0x50f1a2 ; clear -> primitive dispatch
0x0050f18d call 0x518180 ; CPartArray::FindObjCollisions
0x0050f19d jmp 0x50f2b0 ; UNCONDITIONAL, past BOTH primitive loops
; (CylSphere 0x50f1a2, Sphere 0x50f21d)
0x0050f1d6 jae 0x50f317 ; CylSphere loop exhausted -> RETURN
0x0050f22f je 0x50f31b ; zero Spheres -> RETURN seeded OK_TS
CPhysicsObj::calc_cross_cells @0x00515230
0x00515285 test dword [esi+0xa8], 0x10000
0x0051528f jne 0x515305 -> CPhysicsObj::find_bbox_cell_list @0x00510fc0
0x005152d1 call 0x52b9f0 ; cylsphere branch, below the jump
0x005152fb call 0x52b990 ; sorting-sphere branch, below the jump
Priority at both consumers: BSP -> CylSphere -> Sphere -> nothing. BSP wins.
Every address above was resolved back to its symbol by exact lookup in
named-retail/symbols.json.
Changes:
* `ShadowShapeBuilder.FromSetup` gains a step-0 dispatch gate. Steps 1 and 2
are skipped entirely when any part's EFFECTIVE GfxObj carries a physics
BSP. The gate and step 3 now share one `EffectivePartGfxObjId` helper, so
they cannot read different identities — a gate on `setup.Parts` would,
after an ObjDesc swap, suppress the primitives while step 3 emitted
nothing and `Build` returned null, deleting the entity's collision.
Emission order is unchanged. This also removes acdream's undeclared
reliance on the server sending the flag: the gate is derived from the
parts, exactly as CPartArray::CacheHasPhysicsBSP @0x00518110 derives it.
* `ShadowObjectRegistry.BuildFloodSpheres` now applies calc_cross_cells'
own order: BSP, else Cylinder, else everything. Given the gate above this
is a no-op for every shape list acdream produces (FromSetup is now
exclusive; both landblock-static publishers already emit homogeneous
lists), so the measured membership delta remains attributable to the
gate alone. It is kept for the same reason BspOnlyDispatch is kept: retail
genuinely dispatches here, and it guards a future additive producer.
`Transition.BspOnlyDispatch` is deliberately untouched.
Register: AP-152 RETIRED with its four false statements corrected — the risk
statement (the symptom was already inert); "small and centred at the part
origin" (max primitive is 6.714 m, and 0x0200086E's sphere origin is
(0.759, 0.165, 5.842)); the cottage door's "~14 cm base Sphere" (it is
0.100 m; 0.141 is Setup.Radius, which AP-22 proved is never collision
geometry); and naming one pinning test where two existed. AP-153/154/155
filed: retail's dispatch flag is cached once at InitPartArrayObject+0x7e
where acdream's gate is live; the query-time guard takes a client-derived
flag off the wire; and the static publishers emit Setup Spheres as
height-capped Cylinders while BuildFloodSpheres approximates retail's
bounding box with bounding spheres.
Tests. Both pinning tests corrected, neither deleted:
`FromSetup_DoorSetup_ProducesFourShapes` -> `..._EmitsBspPartsOnly`;
`FromSetup_DoorSetup_SphereAtExpectedLocalOffset` re-hosted on
`_ => false`, the DAT-real configuration for the 3,605 Sphere-only Setups.
`FromSetup_ScaleFactor_MultipliesAllRadiiAndOffsets` was the campaign's
eighth green test covering nothing — its assertions sat inside
`if (CollisionType == Cylinder)` on a fixture with zero CylSpheres, so only
`Scale == 2.0f` ever ran. Proved empirically: with the sphere radius scale
deleted, the old body passes and the corrected body fails. Three new facts:
the effective-identity gate, the App-layer CylSphere+BSP registration (no
App fixture combined the two before), and the flood-set dispatch. One new
installed-DAT sweep pins 172 affected Setups (73 CylSphere+BSP, 99
Sphere+BSP) behind external bucket controls, re-measured independently and
agreeing exactly with the filing commit's separate sweep.
All eight sabotages run and reported; every discriminating fact reddens in
the intended direction and only there. Clean Release build after deleting
every bin/obj: 0 errors. Complete suite 11,203 passed / 4 skipped / 0
failed, +5 on the 11,198 baseline at ec29a732 — exactly the five added
facts, no new skips.
Blast radius, corrected: the FromSetup half is graphical-only (its sole
production caller is LiveEntityCollisionBuilder in AcDream.App, which
AcDream.Headless cannot reference — Headless -> Runtime -> Core/Content).
The BuildFloodSpheres half lives in AcDream.Core and DOES execute in
Headless via LandblockPhysicsContentBuilder, but is behaviour-neutral there
because both of that builder's registrations pass homogeneous lists.
Headless suite green at 89/89.
NOT yet gated live: this changes shadow-cell membership for 22 Setups used
by 151 Door weenies and 38 stationary props. Needs a connected session.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Erik
parent
ec29a732f5
commit
4abd1b5eb7
9 changed files with 1635 additions and 85 deletions
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@ -217,4 +217,113 @@ public class ShadowObjectRegistryMultiPartTests
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Assert.Equal(0, reg.TotalRegistered);
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}
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// ---------------------------------------------------------------------
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// AP-152 — cross-cell dispatch. CPhysicsObj::calc_cross_cells @0x00515230
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// tests HAS_PHYSICS_BSP_PS at 0x00515285 and routes a BSP-bearing object
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// to CPhysicsObj::find_bbox_cell_list @0x00510fc0 through
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// 0x0051528f jne 0x515305. The cylsphere branch (0x005152d1
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// CObjCell::find_cell_list @0x0052b9f0) and the sorting-sphere branch
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// (0x005152fb ... @0x0052b990) are BOTH below that jump and unreachable
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// from it. BuildFloodSpheres used to prefer Cylinders over everything
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// whenever any Cylinder was present, which is retail's SECOND priority
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// applied ahead of its first.
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// ---------------------------------------------------------------------
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/// <summary>Cells of the landblock that hold at least one row for owner.</summary>
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private static List<uint> OutdoorCellsHolding(ShadowObjectRegistry reg, uint ownerId)
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{
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var cells = new List<uint>();
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for (uint index = 1u; index <= 64u; index++)
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{
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uint cellId = LbId | index;
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if (reg.GetObjectsInCell(cellId).Any(e => e.EntityId == ownerId))
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cells.Add(cellId);
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}
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return cells;
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}
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private static ShadowShape Cyl(float radius) => new(
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GfxObjId: 0u, LocalPosition: Vector3.Zero, LocalRotation: Quaternion.Identity,
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Scale: 1f, CollisionType: ShadowCollisionType.Cylinder,
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Radius: radius, CylHeight: radius * 2f);
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private static ShadowShape Bsp(float radius) => new(
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GfxObjId: 0x010044B5u, LocalPosition: Vector3.Zero, LocalRotation: Quaternion.Identity,
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Scale: 1f, CollisionType: ShadowCollisionType.BSP,
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Radius: radius, CylHeight: 0f);
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private static List<uint> FloodCellsFor(params ShadowShape[] shapes)
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{
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var reg = new ShadowObjectRegistry();
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const uint ownerId = 0xBEEF01u;
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// Centre of the landblock's cell (1,1) so a 14 m footprint stays
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// inside the block's own 8x8 outdoor grid on every side.
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reg.RegisterMultiPart(
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ownerId, new Vector3(36f, 36f, 50f), Quaternion.Identity,
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shapes, 0x10008u, EntityCollisionFlags.None, OffX, OffY, LbId);
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return OutdoorCellsHolding(reg, ownerId);
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}
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[Fact]
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public void BuildFloodSpheres_BspBearingOwner_FloodsFromBspNotFromCylinder()
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{
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List<uint> cylinderOnly = FloodCellsFor(Cyl(0.5f));
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List<uint> bspOnly = FloodCellsFor(Bsp(14f));
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List<uint> mixed = FloodCellsFor(Cyl(0.5f), Bsp(14f));
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// Controls: the two footprints must actually differ, or the fact below
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// is satisfiable by any dispatch rule at all.
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Assert.Equal([LbId | 10u], cylinderOnly);
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Assert.True(bspOnly.Count > 1,
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$"BSP footprint control failed: expected >1 cell, got {bspOnly.Count}");
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// The fact: a mixed list floods from the BSP shapes, exactly as if the
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// cylinder were not there. Retail 0x0051528f.
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Assert.Equal(bspOnly, mixed);
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Assert.NotEqual(cylinderOnly, mixed);
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}
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/// <summary>
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/// The AP-152 delta end-to-end: a CylSphere+BSP Setup (73 of the 172
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/// affected installed Setups are this shape) registered through the
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/// production builder. Before the fix the emitted list carried both, and
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/// BuildFloodSpheres' cylinder preference confined the owner to the
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/// cylinder's cell while its slab BSP reached further — an object absent
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/// from shadow cells it physically occupies, the #98 / #168 symptom class.
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/// </summary>
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[Fact]
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public void FromSetup_CylSphereAndBspSetup_FloodsTheBspFootprint()
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{
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const uint part = 0x010044B5u;
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var setup = new DatReaderWriter.DBObjs.Setup
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{
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Parts = { part },
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CylSpheres = { new DatReaderWriter.Types.CylSphere
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{ Radius = 0.5f, Height = 1f, Origin = Vector3.Zero } },
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};
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IReadOnlyList<ShadowShape> raw =
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ShadowShapeBuilder.FromSetup(setup, entScale: 1f, hasPhysicsBsp: id => id == part);
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// Production substitutes the real BSP bounding radius at registration
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// time (LiveEntityCollisionBuilder.Build); 14 m stands in for a slab
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// wide enough to leave its own landcell.
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var shapes = raw.Select(s => s.CollisionType == ShadowCollisionType.BSP
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? s with { Radius = 14f }
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: s).ToList();
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ShadowShape only = Assert.Single(shapes);
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Assert.Equal(ShadowCollisionType.BSP, only.CollisionType);
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var reg = new ShadowObjectRegistry();
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const uint ownerId = 0xBEEF02u;
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reg.RegisterMultiPart(
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ownerId, new Vector3(36f, 36f, 50f), Quaternion.Identity,
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shapes, 0x10008u, EntityCollisionFlags.None, OffX, OffY, LbId);
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List<uint> cells = OutdoorCellsHolding(reg, ownerId);
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Assert.Contains(LbId | 10u, cells);
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Assert.True(cells.Count > 1,
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$"Expected the slab footprint to span more than its own landcell; got {cells.Count}");
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}
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}
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@ -49,10 +49,20 @@ public class ShadowShapeBuilderShapeSourceTests
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// BEFORE ShadowShapeBuilder ran and discarded these entities entirely.
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//
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// Retail oracle: CPhysicsPart::find_obj_collisions@0x0050D8D0 -- when
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// physics_bsp is non-null the part IS tested; the outer loop in
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// CPartArray::FindObjCollisions iterates all parts regardless of
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// CylSpheres/Spheres. ShadowShapeBuilder.FromSetup mirrors this by emitting
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// one BSP shape per part that `hasPhysicsBsp` returns true for.
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// physics_bsp is non-null the part IS tested, and the outer loop in
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// CPartArray::FindObjCollisions@0x00518180 iterates ALL parts.
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// ShadowShapeBuilder.FromSetup mirrors this by emitting one BSP shape per
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// part that `hasPhysicsBsp` returns true for.
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//
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// AP-152 correction (2026-08-06): that "regardless of CylSpheres/Spheres"
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// used to be stated here and was then used to justify emitting the BSP
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// shapes IN ADDITION TO the primitives. It does not support that. The
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// per-part loop is reached only from the BSP branch of
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// CPhysicsObj::FindObjCollisions@0x0050f050, which is entered on
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// HAS_PHYSICS_BSP_PS (0x0050f165 test / 0x0050f16f je) and left by the
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// UNCONDITIONAL 0x0050f19d jmp 0x50f2b0 — past both primitive loops. The
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// dispatch is exclusive and BSP wins; this fixture's Setup simply has no
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// primitive to lose.
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[Fact]
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public void Setup_WithBspPart_NoCylSpheres_EmitsBspShape()
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{
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@ -47,40 +47,57 @@ public class ShadowShapeBuilderTests
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return setup;
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}
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/// <summary>
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/// AP-152, corrected 2026-08-06 (was <c>FromSetup_DoorSetup_ProducesFourShapes</c>,
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/// which pinned the additive emission as intended).
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///
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/// <para>
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/// Retail dispatches EXCLUSIVELY and BSP wins.
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/// <c>CPhysicsObj::FindObjCollisions</c> @0x0050f050 tests
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/// <c>HAS_PHYSICS_BSP_PS</c> first (<c>0x0050f165
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/// test dword [esi+0xa8],0x10000</c> / <c>0x0050f16f je 0x50f1a2</c>) and
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/// leaves the BSP branch through the UNCONDITIONAL
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/// <c>0x0050f19d jmp 0x50f2b0</c>, which is past both the CylSphere loop
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/// (0x50f1a2) and the Sphere loop (0x50f21d).
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/// <c>CPhysicsObj::calc_cross_cells</c> @0x00515230 tests the same flag at
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/// 0x00515285 and routes to <c>find_bbox_cell_list</c> @0x00510fc0.
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/// So the cottage door's 0.100 m base Sphere is neither tested for
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/// collision nor used for cell membership — only the three slab BSP parts.
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/// </para>
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/// </summary>
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[Fact]
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public void FromSetup_DoorSetup_ProducesFourShapes()
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public void FromSetup_DoorSetup_EmitsBspPartsOnly()
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{
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var setup = CreateDoorSetup();
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Func<uint, bool> hasBsp = id => id == 0x010044B5u || id == 0x010044B6u;
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var shapes = ShadowShapeBuilder.FromSetup(setup, entScale: 1.0f, hasBsp);
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Assert.Equal(4, shapes.Count);
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// Task 2 (2026-06-24): Setup.Spheres now emit ShadowCollisionType.Sphere,
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// not Cylinder. A door's Sphere entry contributes the Sphere-typed shape;
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// the 3 parts (all with physics BSP) contribute the 3 BSP shapes.
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int sphereCount = 0;
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int bspCount = 0;
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foreach (var s in shapes)
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{
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if (s.CollisionType == ShadowCollisionType.Sphere) sphereCount++;
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else if (s.CollisionType == ShadowCollisionType.BSP) bspCount++;
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}
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Assert.Equal(1, sphereCount);
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Assert.Equal(3, bspCount);
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Assert.Equal(3, shapes.Count);
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Assert.All(shapes, s => Assert.Equal(ShadowCollisionType.BSP, s.CollisionType));
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Assert.DoesNotContain(shapes, s => s.CollisionType == ShadowCollisionType.Sphere);
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Assert.DoesNotContain(shapes, s => s.CollisionType == ShadowCollisionType.Cylinder);
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}
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/// <summary>
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/// AP-152, re-hosted 2026-08-06 on <c>hasPhysicsBsp: _ => false</c> — the
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/// DAT-real configuration for the 3,605 Sphere-only Setups. The fact
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/// itself is unchanged and still live: a Setup Sphere emits a TRUE
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/// <see cref="ShadowCollisionType.Sphere"/> (not a height-capped
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/// Cylinder), passing its local offset and radius through.
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/// <c>ShadowCollisionType.Sphere</c> is produced at exactly one site in
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/// <c>src/</c>, and it is the premise of the whole CSphere family port.
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/// Retail: <c>CSphere::intersects_sphere</c> @0x00537A80 uses 3-D
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/// distance, so there is no height cap.
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/// </summary>
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[Fact]
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public void FromSetup_DoorSetup_SphereAtExpectedLocalOffset()
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{
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var setup = CreateDoorSetup();
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var shapes = ShadowShapeBuilder.FromSetup(setup, 1.0f, _ => true);
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var shapes = ShadowShapeBuilder.FromSetup(setup, 1.0f, _ => false);
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// Task 2 (2026-06-24): Spheres emit ShadowCollisionType.Sphere (not Cylinder).
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// Retail: CSphere::intersects_sphere @ 0x00537A80 uses 3-D distance; no height cap.
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var sphereShape = shapes.FirstOrDefault(s => s.CollisionType == ShadowCollisionType.Sphere);
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Assert.NotEqual(default, sphereShape);
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var sphereShape = Assert.Single(shapes);
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Assert.Equal(ShadowCollisionType.Sphere, sphereShape.CollisionType);
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Assert.Equal(0f, sphereShape.LocalPosition.X, 4);
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Assert.Equal(0f, sphereShape.LocalPosition.Y, 4);
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Assert.Equal(0.018f, sphereShape.LocalPosition.Z, 4);
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Assert.Equal(0f, sphereShape.CylHeight, 4);
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}
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/// <summary>
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/// AP-152 trap 1. The step-0 dispatch gate and the step-3 emission must
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/// read the SAME part identities. If the gate read <c>setup.Parts</c>
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/// while step 3 read the installed <c>AnimPartChanged</c> replacements,
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/// a swap could suppress the primitives while step 3 emitted nothing —
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/// <c>LiveEntityCollisionBuilder.Build</c> would then return null and the
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/// entity's collision would disappear entirely.
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/// </summary>
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[Fact]
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public void FromSetup_DispatchGateReadsTheEffectivePartIdentities()
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{
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const uint basePart = 0x010044B5u;
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const uint replacementWithBsp = 0x0100AA01u;
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var setup = new Setup
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{
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Parts = { basePart },
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CylSpheres = { new CylSphere { Radius = 0.4f, Height = 1.2f, Origin = Vector3.Zero } },
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};
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Func<uint, bool> hasBsp = id => id == replacementWithBsp;
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var swapped = ShadowShapeBuilder.FromSetup(
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setup, 1.0f, hasBsp, effectivePartGfxObjIds: [replacementWithBsp]);
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var unswapped = ShadowShapeBuilder.FromSetup(setup, 1.0f, hasBsp);
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// Replacement carries the BSP -> BSP wins, the CylSphere is suppressed.
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ShadowShape swappedShape = Assert.Single(swapped);
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Assert.Equal(ShadowCollisionType.BSP, swappedShape.CollisionType);
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Assert.Equal(replacementWithBsp, swappedShape.GfxObjId);
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// Base identity has no BSP -> no BSP shape exists, so the CylSphere
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// must survive. A gate reading setup.Parts would agree here and
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// disagree above; a gate reading nothing at all would disagree here.
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ShadowShape unswappedShape = Assert.Single(unswapped);
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Assert.Equal(ShadowCollisionType.Cylinder, unswappedShape.CollisionType);
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Assert.Equal(0.4f, unswappedShape.Radius, 4);
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}
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[Fact]
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public void FromSetup_PartWithoutBsp_SkipsBspShape()
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{
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@ -147,22 +201,44 @@ public class ShadowShapeBuilderTests
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Assert.Equal(1.20f, shapes[0].CylHeight, 3);
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}
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/// <summary>
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/// Corrected 2026-08-06 (AP-152 §11.5). This test used to run
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/// <c>CreateDoorSetup()</c> — which has ZERO CylSpheres — and then assert
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/// radius/offset scaling inside
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/// <c>if (s.CollisionType == ShadowCollisionType.Cylinder)</c>. That
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/// branch had been unreachable since Setup Spheres started emitting
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/// <see cref="ShadowCollisionType.Sphere"/> (2026-06-24), so the only
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/// assertion that ever executed was <c>Scale == 2.0f</c>: the name
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/// promised radius and offset scaling and pinned neither. Both primitive
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/// kinds are now asserted unconditionally, on fixtures that actually
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/// emit them.
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/// </summary>
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[Fact]
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public void FromSetup_ScaleFactor_MultipliesAllRadiiAndOffsets()
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{
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var setup = CreateDoorSetup();
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var sphereShape = Assert.Single(
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ShadowShapeBuilder.FromSetup(CreateDoorSetup(), entScale: 2.0f, _ => false));
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Assert.Equal(ShadowCollisionType.Sphere, sphereShape.CollisionType);
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Assert.Equal(2.0f, sphereShape.Scale, 3);
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Assert.Equal(0.200f, sphereShape.Radius, 3); // 0.100 * 2
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Assert.Equal(0.036f, sphereShape.LocalPosition.Z, 3); // 0.018 * 2
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var shapes = ShadowShapeBuilder.FromSetup(setup, entScale: 2.0f, _ => true);
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|
||||
foreach (var s in shapes)
|
||||
var cylSetup = new Setup
|
||||
{
|
||||
Assert.Equal(2.0f, s.Scale, 3);
|
||||
if (s.CollisionType == ShadowCollisionType.Cylinder)
|
||||
CylSpheres =
|
||||
{
|
||||
Assert.Equal(0.200f, s.Radius, 3);
|
||||
Assert.Equal(0.036f, s.LocalPosition.Z, 3);
|
||||
new CylSphere { Radius = 0.40f, Height = 1.20f, Origin = new Vector3(0.1f, 0.2f, 0.6f) }
|
||||
}
|
||||
}
|
||||
};
|
||||
var cylShape = Assert.Single(
|
||||
ShadowShapeBuilder.FromSetup(cylSetup, entScale: 2.0f, _ => false));
|
||||
Assert.Equal(ShadowCollisionType.Cylinder, cylShape.CollisionType);
|
||||
Assert.Equal(2.0f, cylShape.Scale, 3);
|
||||
Assert.Equal(0.800f, cylShape.Radius, 3); // 0.40 * 2
|
||||
Assert.Equal(2.400f, cylShape.CylHeight, 3); // 1.20 * 2
|
||||
Assert.Equal(0.200f, cylShape.LocalPosition.X, 3);
|
||||
Assert.Equal(0.400f, cylShape.LocalPosition.Y, 3);
|
||||
Assert.Equal(1.200f, cylShape.LocalPosition.Z, 3);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue