85a164f4a8
The Geometric_DoorSlabZRange_AbovePlayerSphereTop test was computing slabWorldZBottom as (entity.Z + partFrame.Z) — assuming the slab's local Z=0 was its bottom. Actually checking the dat shows the slab's PhysicsPolygons local AABB is min=(-0.954, -0.134, -1.236) max=(0.971, 0.127, 1.255) — the slab's local origin is at its GEOMETRIC CENTER, not the bottom. With partFrame.Z=1.275 lifting the origin, the slab world Z is actually [94.139, 96.630], not [95.375, 97.865]. Corrected test now computes both slabLocalZMin and slabLocalZMax from the polygon vertices and asserts the opposite (correct) geometric fact: the slab IS at sphere height — overlap from Z=94.139 to Z=95.20 (1.061 m of vertical overlap with the player's sphere). The slab is NOT a lintel that misses the sphere; it should collide. Test renamed: Geometric_DoorSlabZRange_AbovePlayerSphereTop → Geometric_DoorSlabAtSphereHeight_OverlapsInZ. Handoff doc 2026-05-25-door-bug-partial-fix-shipped.md updated with the corrected analysis. The "next investigation candidates" list now points toward cdb attach to retail as the highest-ROI option, since the BSP collision IS active at sphere height but production still shows asymmetric walkthrough behavior. The bug is in either the GetNearbyObjects coverage at primary-cell boundaries, the BSP polygon partial-overlap handling, or missing cell-BSP collision for cottage doorway walls. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
898 lines
41 KiB
C#
898 lines
41 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Numerics;
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using AcDream.Core.Physics;
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using DatReaderWriter;
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using DatReaderWriter.DBObjs;
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using DatReaderWriter.Enums;
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using DatReaderWriter.Options;
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using Xunit;
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using Env = System.Environment;
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namespace AcDream.Core.Tests.Physics;
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/// <summary>
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/// A6.P4 door bug (2026-05-24) — trajectory replay harness for the
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/// Holtburg cottage door walk-through bug. User-reported: approach a
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/// CLOSED door OFF-CENTER (≈50 cm from the doorway centerline), the
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/// player walks through unimpeded. Live capture
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/// (<c>door-walkthrough.jsonl</c>) confirms:
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///
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/// <list type="bullet">
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/// <item>Tick 13558 — player at (132.36, 16.81, 94) cell 0xA9B40150
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/// (indoor cottage cell), targets (132.43, 17.20, 94). Engine
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/// returns <c>result.Position = target</c> with
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/// <c>collisionNormalValid = false</c>. Clean walkthrough.</item>
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/// <item>Tick 22760 — player at (133.14, 18.02, 94) cell 0xA9B40029
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/// (outdoor cell, 0.57 m EAST of door center), targets
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/// (133.10, 17.60, 94). Engine BLOCKS at Y=18.018, cn=(0, +1, 0).
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/// The door's BSP fires correctly for THIS approach.</item>
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/// </list>
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///
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/// The bug is positional: the door blocks SOME approaches but not the
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/// indoor-cell approach. This harness replays both representative ticks
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/// against a fresh engine seeded with the door alone (registered via
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/// <see cref="ShadowObjectRegistry.RegisterMultiPart"/> at the captured
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/// BSP world transform, cellScope=0u to mirror production). The FIRST
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/// per-field divergence between live and harness outputs names what
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/// apparatus state production has that the harness lacks — short-
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/// circuiting the speculative-fix loop that closed in handoff
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/// <c>docs/research/2026-05-24-door-collision-session-end-handoff.md</c>.
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///
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/// <para>
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/// SKIP if ACDREAM_DAT_DIR (or the default
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/// <c>%USERPROFILE%\Documents\Asheron's Call</c>) is unavailable — keeps
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/// CI green. Local developer runs always have it.
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/// </para>
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/// </summary>
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public class DoorBugTrajectoryReplayTests
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{
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// ── Door geometry from live capture ───────────────────────────────
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// [entity-source] id=0x000F4246 src=0x020019FF gfxObj=0x020019FF
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// lb=0xA9B40029 shapes=cyl1+bsp1 state=0x00010008
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// [bsp-test] obj=0x000F4246 gfx=0x010044B5 radius=1.975
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// pos=(132.57,16.99,95.36)
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// [cyl-test] obj=0x000F4246 radius=0.100 height=0.200
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// pos=(132.56,17.11,94.10)
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private const uint DoorEntityId = 0x000F4246u;
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private const uint DoorGfxObjId = 0x010044B5u;
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private const uint DoorClosedState = 0x00010008u; // PERSISTENT_PS | 0x8 (no ETHEREAL)
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private const uint DoorLandblockId = 0xA9B40000u;
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private static readonly Vector3 BspWorldPos = new(132.57f, 16.99f, 95.36f);
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private const float BspRadius = 1.975f;
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private static readonly Vector3 CylWorldPos = new(132.56f, 17.11f, 94.10f);
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private const float CylRadius = 0.10f;
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private const float CylHeight = 0.20f;
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// ── Tests ─────────────────────────────────────────────────────────
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/// <summary>
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/// Replay tick 13558 — the walkthrough. Player at (132.36, 16.81, 94)
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/// indoor cell 0xA9B40150, runs NE to (132.43, 17.20, 94) crossing
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/// the door's BSP Y-range [16.86, 17.12]. Live engine reports
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/// <c>collisionNormalValid=false</c>, result.Position == target — sphere
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/// walks through. The harness should reproduce the same null collision
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/// IF the bug is upstream of BSP query (door not returned by
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/// GetNearbyObjects from the indoor primary cell), OR fire a BSP
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/// collision IF the harness's portal-reachable cell set includes the
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/// door's outdoor cell when production's doesn't.
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/// </summary>
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[Fact]
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public void LiveCompare_DoorOffCenterWalkthrough_Tick13558()
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{
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var datDir = ResolveDatDir();
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if (datDir is null) return;
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var (engine, _) = BuildEngineWithDoorFixture(datDir);
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var captured = LoadCapturedRecord(r => r.Tick == 13558);
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AssertCallMatchesCapture(engine, captured);
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}
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/// <summary>
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/// Replay tick 22760 — the door BLOCKS. Player at (133.14, 18.02, 94)
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/// outdoor cell 0xA9B40029, walks SW to (133.10, 17.60, 94). Live engine
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/// reports collision with cn=(0, +1, 0) (+Y wall facing north, blocks
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/// south motion). Sphere stopped at Y=18.018. This is the WORKING
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/// case — the door's BSP correctly blocks when queried from the
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/// outdoor primary cell. If the harness diverges here, the door
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/// registration itself is wrong.
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/// </summary>
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[Fact]
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public void LiveCompare_DoorBlocksFromOutside_Tick22760()
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{
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var datDir = ResolveDatDir();
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if (datDir is null) return;
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var (engine, _) = BuildEngineWithDoorFixture(datDir);
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var captured = LoadCapturedRecord(r => r.Tick == 22760);
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AssertCallMatchesCapture(engine, captured);
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}
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/// <summary>
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/// Diagnostic dump: every relevant probe ON, replay tick 13558,
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/// captured stdout shows what GetNearbyObjects / CellTransit /
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/// BSPQuery actually did. Use this when the LiveCompare test FAILS
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/// to see the engine's internal decisions on the failing tick.
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/// Always passes (diagnostic-only).
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/// </summary>
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[Fact]
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public void Diagnostic_Tick13558_DumpEngineInternals()
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{
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var datDir = ResolveDatDir();
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if (datDir is null) return;
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PhysicsDiagnostics.ProbeResolveEnabled = true;
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PhysicsDiagnostics.ProbeBuildingEnabled = true;
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PhysicsDiagnostics.ProbeIndoorBspEnabled = true;
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PhysicsDiagnostics.ProbePushBackEnabled = true;
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PhysicsDiagnostics.ProbeStepWalkEnabled = true;
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try
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{
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var (engine, _) = BuildEngineWithDoorFixture(datDir);
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var captured = LoadCapturedRecord(r => r.Tick == 13558);
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var body = SeedBodyFromSnapshot(captured.BodyBefore!);
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Console.WriteLine("=== Replay tick 13558 (the walkthrough) ===");
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var result = engine.ResolveWithTransition(
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currentPos: captured.Input.CurrentPos,
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targetPos: captured.Input.TargetPos,
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cellId: captured.Input.CellId,
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sphereRadius: captured.Input.SphereRadius,
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sphereHeight: captured.Input.SphereHeight,
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stepUpHeight: captured.Input.StepUpHeight,
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stepDownHeight: captured.Input.StepDownHeight,
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isOnGround: captured.Input.IsOnGround,
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body: body,
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moverFlags: (ObjectInfoState)captured.Input.MoverFlags,
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movingEntityId: captured.Input.MovingEntityId);
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Console.WriteLine(string.Format(System.Globalization.CultureInfo.InvariantCulture,
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"=== Harness: pos=({0:F4},{1:F4},{2:F4}) cn=({3:F4},{4:F4},{5:F4}) cnValid={6} onGround={7} cell=0x{8:X8}",
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result.Position.X, result.Position.Y, result.Position.Z,
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result.CollisionNormal.X, result.CollisionNormal.Y, result.CollisionNormal.Z,
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result.CollisionNormalValid, result.IsOnGround, result.CellId));
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Console.WriteLine(string.Format(System.Globalization.CultureInfo.InvariantCulture,
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"=== Live: pos=({0:F4},{1:F4},{2:F4}) cn=({3:F4},{4:F4},{5:F4}) cnValid={6} onGround={7} cell=0x{8:X8}",
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captured.Result.Position.X, captured.Result.Position.Y, captured.Result.Position.Z,
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captured.Result.CollisionNormal.X, captured.Result.CollisionNormal.Y, captured.Result.CollisionNormal.Z,
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captured.Result.CollisionNormalValid, captured.Result.IsOnGround, captured.Result.CellId));
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}
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finally
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{
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PhysicsDiagnostics.ProbeResolveEnabled = false;
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PhysicsDiagnostics.ProbeBuildingEnabled = false;
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PhysicsDiagnostics.ProbeIndoorBspEnabled = false;
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PhysicsDiagnostics.ProbePushBackEnabled = false;
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PhysicsDiagnostics.ProbeStepWalkEnabled = false;
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}
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}
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/// <summary>
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/// Drive <see cref="CellTransit.FindTransitCellsSphere"/> directly with
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/// cell 0xA9B40150 hydrated from the real dat and the sphere position
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/// captured at tick 13558. Asserts <c>exitOutside</c> fires for the
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/// 0xFFFF exit portal. If this PASSES, the cell-portal code is correct
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/// in isolation and the production bug is upstream (cell not loaded
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/// in cache, primary cell mis-classified, etc.). If it FAILS, the
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/// portal traversal IS the bug.
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/// </summary>
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[Fact]
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public void FindTransitCellsSphere_IndoorExitPortal_AddsOutsideForCapturedSpherePos()
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{
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var datDir = ResolveDatDir();
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if (datDir is null) return;
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// ── 1. Hydrate cell 0xA9B40150 from the real dat ────────────
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using var dats = new DatCollection(datDir, DatAccessType.Read);
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const uint CellId = 0xA9B40150u;
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const uint EnvCellPrefix = 0x0D000000u;
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var envCell = dats.Get<DatReaderWriter.DBObjs.EnvCell>(CellId);
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Assert.NotNull(envCell);
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var environment = dats.Get<DatReaderWriter.DBObjs.Environment>(
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EnvCellPrefix | envCell!.EnvironmentId);
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Assert.NotNull(environment);
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Assert.True(environment!.Cells.TryGetValue(envCell.CellStructure, out var cellStruct));
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Assert.NotNull(cellStruct);
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// ── 2. Build the cell's worldTransform matching production
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// (GameWindow.cs:5404-5406) ──────────────────────────────
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var cellOriginWorld = envCell.Position.Origin;
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var worldTransform =
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Matrix4x4.CreateFromQuaternion(envCell.Position.Orientation) *
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Matrix4x4.CreateTranslation(cellOriginWorld);
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// ── 3. Hydrate into CellPhysics via CacheCellStruct ─────────
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var cache = new PhysicsDataCache();
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cache.CacheCellStruct(CellId, envCell, cellStruct!, worldTransform);
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var cellPhysics = cache.GetCellStruct(CellId);
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Assert.NotNull(cellPhysics);
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Assert.NotNull(cellPhysics!.Portals);
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Assert.Contains(cellPhysics.Portals, p => p.OtherCellId == 0xFFFFu);
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// ── 4. Captured sphere position at tick 13558 ───────────────
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var sphereWorld = new Vector3(132.3603f, 16.8113f, 94.0000f);
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const float sphereRadius = 0.48f;
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// Confirm sphere is INSIDE cell 0x0150's BSP (sanity).
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Assert.NotNull(cellPhysics.CellBSP);
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var localCenter = Vector3.Transform(sphereWorld, cellPhysics.InverseWorldTransform);
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// ── 5. Run FindTransitCellsSphere — does it fire exitOutside? ─
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var candidates = new HashSet<uint>();
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CellTransit.FindTransitCellsSphere(
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cache, cellPhysics, CellId,
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sphereWorld, sphereRadius,
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candidates,
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out bool exitOutside);
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// Diagnostic — print the localCenter + each portal's
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// sphere-vs-plane distance so we see what the test computed.
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Console.WriteLine(string.Format(System.Globalization.CultureInfo.InvariantCulture,
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"localCenter=({0:F4},{1:F4},{2:F4}) radius={3:F4}",
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localCenter.X, localCenter.Y, localCenter.Z, sphereRadius));
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foreach (var portal in cellPhysics.Portals)
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{
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if (cellPhysics.PortalPolygons is null
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|| !cellPhysics.PortalPolygons.TryGetValue(portal.PolygonId, out var poly))
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continue;
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float dist = Vector3.Dot(localCenter, poly.Plane.Normal) + poly.Plane.D;
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float rad = sphereRadius + 0.02f;
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bool hit = dist > -rad && dist < rad;
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Console.WriteLine(string.Format(System.Globalization.CultureInfo.InvariantCulture,
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" portal otherCellId=0x{0:X4} polyId=0x{1:X4} n=({2:F4},{3:F4},{4:F4}) d={5:F4} dist={6:F4} rad={7:F4} hit={8}",
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portal.OtherCellId, portal.PolygonId,
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poly.Plane.Normal.X, poly.Plane.Normal.Y, poly.Plane.Normal.Z,
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poly.Plane.D, dist, rad, hit));
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}
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Assert.True(exitOutside,
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"Captured sphere at tick 13558 is straddling cell 0xA9B40150's " +
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"exit portal (0xFFFF) plane. FindTransitCellsSphere should fire " +
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"exitOutside, but did not. Candidates returned: " +
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string.Join(",", candidates.Select(c => $"0x{c:X8}")));
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}
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/// <summary>
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/// A6.P4 inside-out asymmetric collision (2026-05-25 evening) —
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/// synthesizes a sphere approaching a faithfully-registered door
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/// from each side and asserts the BSP collision fires symmetrically.
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///
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/// <para>
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/// Door registered via the SAME path production uses
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/// (ShadowShapeBuilder.FromSetup + RegisterMultiPart) with the
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/// real Setup 0x020019FF loaded from the dat, including the
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/// part-0 BSP's PlacementFrame[Default][0] origin of
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/// (-0.006, 0.125, 1.275). Entity world rotation is 180° around Z
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/// to match the cottage's world transform (per the cellar fixture
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/// pattern + observed [bsp-test] world position alignment).
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/// </para>
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///
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/// <para>
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/// After the 180° entity rotation, the slab's local Y thickness axis
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/// maps to world -Y. Slab spans world Y in approximately
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/// [<see cref="DoorSpawnPos"/>.Y - 0.261, <see cref="DoorSpawnPos"/>.Y]
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/// (entity Y minus 0 to entity Y minus 0.261 thickness). Two faces
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/// matter:
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/// <list type="bullet">
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/// <item><b>Higher-Y face</b> (world Y ≈ entity.Y) has world
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/// normal +Y. A sphere NORTH of the slab moving SOUTH (-Y)
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/// hits this face. <c>cn</c> should be near (0, +1, 0).</item>
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/// <item><b>Lower-Y face</b> (world Y ≈ entity.Y - 0.261) has world
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/// normal -Y. A sphere SOUTH of the slab moving NORTH (+Y)
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/// hits this face. <c>cn</c> should be near (0, -1, 0).</item>
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/// </list>
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/// </para>
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///
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/// <para>
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/// User-reported behavior post-AddAllOutsideCells-fix:
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/// outside→inside blocks cleanly; inside→outside shows the body
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/// partially intersecting the door before sphere slides through.
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/// If the asymmetry is in BSP collision, these tests will
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/// reproduce it at unit-test speed.
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/// </para>
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/// </summary>
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/// <summary>
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/// Geometric pin (2026-05-25 evening, CORRECTED) — pins where the
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/// cottage door's BSP slab actually lives in world space relative
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/// to the player's sphere.
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///
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/// <para>
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/// The cottage door Setup 0x020019FF has:
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/// <list type="bullet">
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/// <item>One CylSphere (r=0.10, h=0.20, origin=(0, 0, 0.018)) — a
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/// TINY foot collider at entity Z + 0.018, extending Z just
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/// to 0.218 above entity Z.</item>
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/// <item>Part 0 = GfxObj 0x010044B5 (BSP slab 1.925 × 0.261 × 2.490 m),
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/// placed via PlacementFrames[Default][0].Origin =
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/// (-0.006, 0.125, 1.275). The slab's local Z=0 origin sits
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/// at entity Z + 1.275 — i.e., the slab's BOTTOM is 1.275 m
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/// ABOVE the door's entity foot.</item>
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/// </list>
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/// </para>
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///
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/// <para>
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/// AABB measured: <c>min=(-0.954,-0.134,-1.236) max=(0.971,0.127,1.255)</c>.
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/// The slab's local origin is at the slab's GEOMETRIC CENTER (each
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/// axis is roughly symmetric around 0). With partFrame.Z = +1.275
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/// lifting the local origin up from the entity, the slab's world
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/// extents are:
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/// </para>
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///
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/// <list type="bullet">
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/// <item>X: [131.635, 133.560] (1.925 m wide; after 180° entity Z rot)</item>
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/// <item>Y: [16.848, 17.109] (0.261 m thick)</item>
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/// <item><b>Z: [94.139, 96.630]</b> (2.491 m tall, bottom JUST above floor)</item>
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/// </list>
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///
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/// <para>
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/// Player sphere (radius 0.48, height 1.20) at floor Z=94 extends
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/// Z=[94, 95.20]. Slab bottom (94.139) is BELOW sphere top (95.20)
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/// by 1.061 m. <b>The slab DOES overlap the sphere in Z</b> over
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/// world Z range [94.139, 95.20]. The slab is at sphere height,
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/// not above it.
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/// </para>
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///
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/// <para>
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/// The foot cylinder (r=0.10, h=0.20) sits at world Z [94.118, 94.318]
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/// — barely above the floor, well within the sphere's foot region.
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/// </para>
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///
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/// <para>
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/// Both shapes are at collision-able height. So the post-fix
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/// inside-out walkthrough at off-center positions is NOT explained
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/// by the slab being above the sphere. The bug must be in the BSP
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/// polygon-level collision response, OR in how the multi-cell
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/// portal-reachable cells produce the shapes list for a player on
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/// the indoor side of the doorway. Next session investigation:
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/// add a focused test that replays the captured inside-out
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/// walkthrough tick with the door registered at its FAITHFUL
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/// production transform (180° entity rot + dat-loaded partFrame)
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/// and shows what BSPQuery.FindCollisions actually does at that
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/// tick.
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/// </para>
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/// </summary>
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[Fact]
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public void Geometric_DoorSlabAtSphereHeight_OverlapsInZ()
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{
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var datDir = ResolveDatDir();
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if (datDir is null) return;
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DatReaderWriter.Types.Frame partFrame;
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float slabLocalZMin = float.MaxValue;
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float slabLocalZMax = float.MinValue;
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using (var dats = new DatCollection(datDir, DatAccessType.Read))
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{
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var setup = dats.Get<DatReaderWriter.DBObjs.Setup>(0x020019FFu)!;
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Assert.NotNull(setup);
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Assert.True(setup.PlacementFrames.ContainsKey(DatReaderWriter.Enums.Placement.Default));
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partFrame = setup.PlacementFrames[DatReaderWriter.Enums.Placement.Default].Frames[0];
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var gfx = dats.Get<DatReaderWriter.DBObjs.GfxObj>(DoorGfxObjId)!;
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Assert.NotNull(gfx.PhysicsPolygons);
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// Walk every physics polygon vertex to find local Z extents.
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foreach (var poly in gfx.PhysicsPolygons.Values)
|
||
{
|
||
foreach (ushort vid in poly.VertexIds)
|
||
{
|
||
if (!gfx.VertexArray.Vertices.TryGetValue(vid, out var sv)) continue;
|
||
if (sv.Origin.Z < slabLocalZMin) slabLocalZMin = sv.Origin.Z;
|
||
if (sv.Origin.Z > slabLocalZMax) slabLocalZMax = sv.Origin.Z;
|
||
}
|
||
}
|
||
}
|
||
|
||
// Slab local origin shifted up by partFrame.Z. Slab world Z extents:
|
||
float partWorldZ = DoorSpawnPos.Z + partFrame.Origin.Z;
|
||
float slabWorldZBottom = partWorldZ + slabLocalZMin;
|
||
float slabWorldZTop = partWorldZ + slabLocalZMax;
|
||
|
||
const float SphereHeight = 1.20f;
|
||
const float PlayerFootZ = 94f;
|
||
float sphereTopZ = PlayerFootZ + SphereHeight;
|
||
|
||
// The slab IS at sphere height — bottom should be below sphere top.
|
||
Assert.True(slabWorldZBottom < sphereTopZ,
|
||
$"Door slab bottom ({slabWorldZBottom:F3}) should be BELOW " +
|
||
$"player sphere top ({sphereTopZ:F3}). Slab Z range = " +
|
||
$"[{slabWorldZBottom:F3}, {slabWorldZTop:F3}]. Player sphere Z = " +
|
||
$"[{PlayerFootZ:F3}, {sphereTopZ:F3}]. The slab IS at " +
|
||
$"sphere height (overlap from {MathF.Max(slabWorldZBottom, PlayerFootZ):F3} " +
|
||
$"to {MathF.Min(slabWorldZTop, sphereTopZ):F3}). So the inside-out " +
|
||
$"walkthrough is NOT caused by the slab being above the sphere — " +
|
||
$"the bug must be in BSP polygon-level collision response.");
|
||
}
|
||
|
||
[Fact]
|
||
public void Directional_OutsideIn_SouthApproach_BlocksAtSlabSouthFace()
|
||
{
|
||
var datDir = ResolveDatDir();
|
||
if (datDir is null) return;
|
||
|
||
var (engine, _) = BuildFaithfulDoorEngine(datDir);
|
||
|
||
// Sphere starts SOUTH of slab (low Y), moves NORTH (+Y) toward door.
|
||
// Slab world Y ∈ [16.84, 17.10] approximately after 180° entity rot.
|
||
// Sphere south edge needs to be just south of slab south face.
|
||
var currentPos = new Vector3(132.5f, 16.3f, 94f);
|
||
var targetPos = new Vector3(132.5f, 16.7f, 94f); // +0.4 m north
|
||
|
||
var (result, body) = ResolveAt(engine, currentPos, targetPos, DoorCellOutdoor);
|
||
|
||
// The slab's south face has world normal (0, -1, 0) after the
|
||
// 180° entity rotation. Sphere moving +Y hits it; collision
|
||
// normal should oppose motion, i.e., negative Y component.
|
||
Assert.True(result.CollisionNormalValid,
|
||
$"Outside-in: door should block sphere. Got: pos={result.Position}, " +
|
||
$"cnValid={result.CollisionNormalValid}, cn={result.CollisionNormal}.");
|
||
Assert.True(result.CollisionNormal.Y < -0.5f,
|
||
$"Outside-in: cn.Y should be negative (south face normal). " +
|
||
$"Got cn={result.CollisionNormal}.");
|
||
}
|
||
|
||
[Fact]
|
||
public void Directional_InsideOut_NorthApproach_BlocksAtSlabNorthFace()
|
||
{
|
||
var datDir = ResolveDatDir();
|
||
if (datDir is null) return;
|
||
|
||
var (engine, _) = BuildFaithfulDoorEngine(datDir);
|
||
|
||
// Sphere starts NORTH of slab (high Y), moves SOUTH (-Y) toward door.
|
||
var currentPos = new Vector3(132.5f, 17.6f, 94f);
|
||
var targetPos = new Vector3(132.5f, 17.2f, 94f); // -0.4 m south
|
||
|
||
var (result, body) = ResolveAt(engine, currentPos, targetPos, DoorCellOutdoor);
|
||
|
||
// The slab's north face has world normal (0, +1, 0) after the
|
||
// 180° entity rotation. Sphere moving -Y hits it; collision
|
||
// normal should oppose motion, i.e., positive Y component.
|
||
Assert.True(result.CollisionNormalValid,
|
||
$"Inside-out: door should block sphere. Got: pos={result.Position}, " +
|
||
$"cnValid={result.CollisionNormalValid}, cn={result.CollisionNormal}.");
|
||
Assert.True(result.CollisionNormal.Y > 0.5f,
|
||
$"Inside-out: cn.Y should be positive (north face normal). " +
|
||
$"Got cn={result.CollisionNormal}.");
|
||
}
|
||
|
||
/// <summary>
|
||
/// Faithful engine: registers the real Setup 0x020019FF door via
|
||
/// ShadowShapeBuilder.FromSetup at the captured entity world position
|
||
/// (132.6, 17.1, 94.1) with the cottage's 180° Z rotation. Mirrors
|
||
/// production GameWindow.RegisterLiveEntityCollision exactly.
|
||
/// </summary>
|
||
private static (PhysicsEngine engine, PhysicsDataCache cache)
|
||
BuildFaithfulDoorEngine(string datDir)
|
||
{
|
||
var cache = new PhysicsDataCache();
|
||
var engine = new PhysicsEngine { DataCache = cache };
|
||
|
||
// Cache GfxObj 0x010044B5 (the BSP slab) from dat.
|
||
DatReaderWriter.DBObjs.Setup setup;
|
||
using (var dats = new DatCollection(datDir, DatAccessType.Read))
|
||
{
|
||
var gfx = dats.Get<DatReaderWriter.DBObjs.GfxObj>(DoorGfxObjId);
|
||
Assert.NotNull(gfx);
|
||
cache.CacheGfxObj(DoorGfxObjId, gfx!);
|
||
|
||
setup = dats.Get<DatReaderWriter.DBObjs.Setup>(0x020019FFu)!;
|
||
Assert.NotNull(setup);
|
||
}
|
||
|
||
// Stub landblock at (0, 0) so TryGetLandblockContext succeeds.
|
||
var heights = new byte[81];
|
||
var heightTable = new float[256];
|
||
for (int i = 0; i < 256; i++) heightTable[i] = -1000f;
|
||
engine.AddLandblock(
|
||
landblockId: DoorLandblockId,
|
||
terrain: new TerrainSurface(heights, heightTable),
|
||
cells: Array.Empty<CellSurface>(),
|
||
portals: Array.Empty<PortalPlane>(),
|
||
worldOffsetX: 0f,
|
||
worldOffsetY: 0f);
|
||
|
||
// Build shape list the same way production does
|
||
// (GameWindow.RegisterLiveEntityCollision):
|
||
// 1. ShadowShapeBuilder.FromSetup with entScale=1
|
||
// 2. Substitute BSP shape's radius with the real BoundingSphere.Radius
|
||
var rawShapes = ShadowShapeBuilder.FromSetup(setup, entScale: 1f,
|
||
id => cache.GetGfxObj(id)?.BSP?.Root is not null);
|
||
var shapes = new List<ShadowShape>(rawShapes.Count);
|
||
foreach (var s in rawShapes)
|
||
{
|
||
if (s.CollisionType == ShadowCollisionType.BSP)
|
||
{
|
||
var phys = cache.GetGfxObj(s.GfxObjId);
|
||
float bspR = phys?.BoundingSphere?.Radius ?? 2f;
|
||
shapes.Add(s with { Radius = bspR });
|
||
}
|
||
else
|
||
{
|
||
shapes.Add(s);
|
||
}
|
||
}
|
||
Assert.Contains(shapes, s => s.CollisionType == ShadowCollisionType.BSP);
|
||
|
||
// Register the door at the cottage's entity world transform:
|
||
// - Position from the captured spawn data: (132.6, 17.1, 94.1)
|
||
// - Rotation 180° around Z to match cottage orientation
|
||
// (consistent with [bsp-test] world position alignment)
|
||
engine.ShadowObjects.RegisterMultiPart(
|
||
entityId: DoorEntityId,
|
||
entityWorldPos: DoorSpawnPos,
|
||
entityWorldRot: Quaternion.CreateFromAxisAngle(Vector3.UnitZ, MathF.PI),
|
||
shapes: shapes,
|
||
state: DoorClosedState,
|
||
flags: EntityCollisionFlags.None,
|
||
worldOffsetX: 0f,
|
||
worldOffsetY: 0f,
|
||
landblockId: DoorLandblockId);
|
||
|
||
return (engine, cache);
|
||
}
|
||
|
||
/// <summary>
|
||
/// Run one <see cref="PhysicsEngine.ResolveWithTransition"/> call
|
||
/// against <paramref name="engine"/> at the given positions/cell,
|
||
/// returning the result + the body's post-call state.
|
||
/// </summary>
|
||
private static (ResolveResult result, PhysicsBody body)
|
||
ResolveAt(PhysicsEngine engine, Vector3 currentPos, Vector3 targetPos, uint cellId)
|
||
{
|
||
var body = new PhysicsBody
|
||
{
|
||
Position = currentPos,
|
||
Orientation = Quaternion.Identity,
|
||
ContactPlaneValid = true,
|
||
ContactPlane = new System.Numerics.Plane(0f, 0f, 1f, -94f),
|
||
ContactPlaneCellId = cellId,
|
||
WalkablePolygonValid = true,
|
||
WalkablePlane = new System.Numerics.Plane(0f, 0f, 1f, -94f),
|
||
WalkableVertices = new[]
|
||
{
|
||
// Big walkable poly covering Y in [10, 30], X in [120, 145].
|
||
new Vector3(120f, 10f, 94f),
|
||
new Vector3(145f, 10f, 94f),
|
||
new Vector3(145f, 30f, 94f),
|
||
new Vector3(120f, 30f, 94f),
|
||
},
|
||
WalkableUp = Vector3.UnitZ,
|
||
TransientState = TransientStateFlags.Contact | TransientStateFlags.OnWalkable,
|
||
};
|
||
|
||
var result = engine.ResolveWithTransition(
|
||
currentPos: currentPos,
|
||
targetPos: targetPos,
|
||
cellId: cellId,
|
||
sphereRadius: 0.48f,
|
||
sphereHeight: 1.20f,
|
||
stepUpHeight: 0.60f,
|
||
stepDownHeight: 1.5f,
|
||
isOnGround: true,
|
||
body: body,
|
||
moverFlags: ObjectInfoState.IsPlayer | ObjectInfoState.EdgeSlide,
|
||
movingEntityId: DoorEntityId + 1);
|
||
|
||
return (result, body);
|
||
}
|
||
|
||
// The captured door spawn position from launch.log [entity-source]:
|
||
// "live: spawn ... name=Door setup=0x020019FF pos=(132.6,17.1,94.1)@0xA9B40029"
|
||
private static readonly Vector3 DoorSpawnPos = new(132.6f, 17.1f, 94.1f);
|
||
private const uint DoorCellOutdoor = 0xA9B40029u;
|
||
|
||
/// <summary>
|
||
/// Direct test of <see cref="CellTransit.AddAllOutsideCells"/> with
|
||
/// the captured sphere position (132.36, 16.81, 94) and currentCellId
|
||
/// 0xA9B40150. Expects outdoor cell 0xA9B40029 (the door's cell) in
|
||
/// the result.
|
||
///
|
||
/// <para>
|
||
/// This is the suspected root cause of the bug: AddAllOutsideCells
|
||
/// computes <c>localX = worldSphereCenter.X - lbXf</c> where
|
||
/// <c>lbXf = ((cellId >> 24) & 0xFF) * 192</c>. For cellId
|
||
/// 0xA9B40150, lbXf = 0xA9 * 192 = 32448. If sphere coords are
|
||
/// LANDBLOCK-LOCAL (as the JSONL capture shows: x=132.36, NOT
|
||
/// 32580.36), the subtraction produces localX = -32316 → gridX = -1346
|
||
/// → early return → NO cells added → door invisible from indoor.
|
||
/// </para>
|
||
/// </summary>
|
||
[Fact]
|
||
public void AddAllOutsideCells_LandblockLocalSphere_AddsDoorOutdoorCell()
|
||
{
|
||
var sphereWorld = new Vector3(132.3603f, 16.8113f, 94.0000f);
|
||
const float sphereRadius = 0.48f;
|
||
const uint currentCellId = 0xA9B40150u;
|
||
|
||
var candidates = new HashSet<uint>();
|
||
CellTransit.AddAllOutsideCells(
|
||
sphereWorld, sphereRadius, currentCellId, candidates);
|
||
|
||
const uint expectedDoorCell = 0xA9B40029u;
|
||
Assert.True(candidates.Contains(expectedDoorCell),
|
||
$"AddAllOutsideCells with landblock-local sphere ({sphereWorld.X:F2}, " +
|
||
$"{sphereWorld.Y:F2}, {sphereWorld.Z:F2}) and indoor primary cell " +
|
||
$"0x{currentCellId:X8} should add outdoor cell 0x{expectedDoorCell:X8} " +
|
||
$"(where the door lives). Got: " +
|
||
string.Join(",", candidates.Select(c => $"0x{c:X8}")));
|
||
}
|
||
|
||
// ── Engine + door fixture ─────────────────────────────────────────
|
||
|
||
/// <summary>
|
||
/// Build a fresh <see cref="PhysicsEngine"/> with:
|
||
/// <list type="bullet">
|
||
/// <item>Door GfxObj 0x010044B5 hydrated from the real dat
|
||
/// (mirrors <c>DoorSetupGfxObjInspectionTests</c>'s read pattern
|
||
/// via <see cref="DatCollection.Get{T}"/>).</item>
|
||
/// <item>A landblock 0xA9B40000 stub (terrain far below) so
|
||
/// <c>TryGetLandblockContext</c> succeeds at the door's XY.</item>
|
||
/// <item>Door registered via
|
||
/// <see cref="ShadowObjectRegistry.RegisterMultiPart"/> at the
|
||
/// captured BSP world center — entity world pos = BSP world pos,
|
||
/// entity rot = identity, one BSP shape at local position zero.
|
||
/// This bypasses ShadowShapeBuilder.FromSetup; the test's
|
||
/// pure goal is to put a slab in the right world location and
|
||
/// see whether the engine sees it from the captured tick's
|
||
/// primary cell. cellScope=0u (default) mirrors production's
|
||
/// door registration at GameWindow.cs:3158-3167.</item>
|
||
/// </list>
|
||
///
|
||
/// <para>
|
||
/// No cell fixture is registered for the player's indoor cell
|
||
/// 0xA9B40150. Without one, <c>CellTransit.FindCellSet</c> can't
|
||
/// portal-walk from indoor → outdoor, so the door (in outdoor cell
|
||
/// 0xA9B40029) won't be reachable from the indoor primary. That's
|
||
/// the BUG'S ROOT IF the test reproduces the live cnValid=false at
|
||
/// tick 13558 — the indoor cell's portal graph is missing the
|
||
/// outdoor cell connection.
|
||
/// </para>
|
||
/// </summary>
|
||
private static (PhysicsEngine engine, PhysicsDataCache cache)
|
||
BuildEngineWithDoorFixture(string datDir)
|
||
{
|
||
var cache = new PhysicsDataCache();
|
||
var engine = new PhysicsEngine { DataCache = cache };
|
||
|
||
// 1. Hydrate door BSP from real dat (CacheGfxObj handles ResolvePolygons,
|
||
// BoundingSphere extraction, and visual AABB fallback).
|
||
using (var dats = new DatCollection(datDir, DatAccessType.Read))
|
||
{
|
||
var gfx = dats.Get<GfxObj>(DoorGfxObjId);
|
||
Assert.NotNull(gfx);
|
||
Assert.NotNull(gfx!.PhysicsBSP);
|
||
Assert.NotNull(gfx.PhysicsBSP!.Root);
|
||
cache.CacheGfxObj(DoorGfxObjId, gfx);
|
||
}
|
||
Assert.NotNull(cache.GetGfxObj(DoorGfxObjId));
|
||
|
||
// 2. Stub landblock so TryGetLandblockContext succeeds at the door XY.
|
||
var heights = new byte[81];
|
||
var heightTable = new float[256];
|
||
for (int i = 0; i < 256; i++) heightTable[i] = -1000f; // far below Z=94
|
||
var stubTerrain = new TerrainSurface(heights, heightTable);
|
||
engine.AddLandblock(
|
||
landblockId: DoorLandblockId,
|
||
terrain: stubTerrain,
|
||
cells: Array.Empty<CellSurface>(),
|
||
portals: Array.Empty<PortalPlane>(),
|
||
worldOffsetX: 0f,
|
||
worldOffsetY: 0f);
|
||
|
||
// 3. Register the door — BSP shape only (the captured bug attaches
|
||
// to the BSP slab; the cylinder is a small foot collider).
|
||
// entityWorldPos = BSP world pos so LocalPos=0 puts the BSP at
|
||
// the captured center. cellScope=0u mirrors production.
|
||
var bspShape = new ShadowShape(
|
||
GfxObjId: DoorGfxObjId,
|
||
LocalPosition: Vector3.Zero,
|
||
LocalRotation: Quaternion.Identity,
|
||
Scale: 1f,
|
||
CollisionType: ShadowCollisionType.BSP,
|
||
Radius: BspRadius,
|
||
CylHeight: 0f);
|
||
|
||
var cylShape = new ShadowShape(
|
||
GfxObjId: 0u,
|
||
LocalPosition: CylWorldPos - BspWorldPos, // express cyl relative to entity origin
|
||
LocalRotation: Quaternion.Identity,
|
||
Scale: 1f,
|
||
CollisionType: ShadowCollisionType.Cylinder,
|
||
Radius: CylRadius,
|
||
CylHeight: CylHeight);
|
||
|
||
engine.ShadowObjects.RegisterMultiPart(
|
||
entityId: DoorEntityId,
|
||
entityWorldPos: BspWorldPos,
|
||
entityWorldRot: Quaternion.Identity,
|
||
shapes: new[] { cylShape, bspShape },
|
||
state: DoorClosedState,
|
||
flags: EntityCollisionFlags.None,
|
||
worldOffsetX: 0f,
|
||
worldOffsetY: 0f,
|
||
landblockId: DoorLandblockId);
|
||
|
||
return (engine, cache);
|
||
}
|
||
|
||
// ── Capture loading + comparison (mirrors CellarUpTrajectoryReplayTests) ──
|
||
|
||
private static string? ResolveDatDir()
|
||
{
|
||
var datDir = Env.GetEnvironmentVariable("ACDREAM_DAT_DIR")
|
||
?? Path.Combine(Env.GetFolderPath(Env.SpecialFolder.UserProfile),
|
||
"Documents", "Asheron's Call");
|
||
return Directory.Exists(datDir) ? datDir : null;
|
||
}
|
||
|
||
private static ResolveCaptureRecord LoadCapturedRecord(
|
||
Func<ResolveCaptureRecord, bool> predicate)
|
||
{
|
||
var path = Path.Combine(FixtureDir, "live-capture.jsonl");
|
||
Assert.True(File.Exists(path),
|
||
$"Door-bug live-capture fixture missing: {path}.");
|
||
|
||
foreach (var line in File.ReadLines(path))
|
||
{
|
||
if (string.IsNullOrWhiteSpace(line))
|
||
continue;
|
||
|
||
var record = System.Text.Json.JsonSerializer
|
||
.Deserialize<ResolveCaptureRecord>(line, CellarUpTrajectoryReplayTests.CaptureJsonOptions)!;
|
||
if (predicate(record))
|
||
return record;
|
||
}
|
||
|
||
throw new Xunit.Sdk.XunitException(
|
||
"No captured record matched the predicate. Update the fixture.");
|
||
}
|
||
|
||
/// <summary>
|
||
/// Replays one captured ResolveWithTransition call against
|
||
/// <paramref name="engine"/>, seeded with bodyBefore, and reports
|
||
/// the first per-field divergence between live and harness.
|
||
/// </summary>
|
||
private static void AssertCallMatchesCapture(
|
||
PhysicsEngine engine,
|
||
ResolveCaptureRecord captured)
|
||
{
|
||
Assert.NotNull(captured.BodyBefore);
|
||
Assert.NotNull(captured.BodyAfter);
|
||
|
||
var body = SeedBodyFromSnapshot(captured.BodyBefore);
|
||
|
||
var harnessResult = engine.ResolveWithTransition(
|
||
currentPos: captured.Input.CurrentPos,
|
||
targetPos: captured.Input.TargetPos,
|
||
cellId: captured.Input.CellId,
|
||
sphereRadius: captured.Input.SphereRadius,
|
||
sphereHeight: captured.Input.SphereHeight,
|
||
stepUpHeight: captured.Input.StepUpHeight,
|
||
stepDownHeight: captured.Input.StepDownHeight,
|
||
isOnGround: captured.Input.IsOnGround,
|
||
body: body,
|
||
moverFlags: (ObjectInfoState)captured.Input.MoverFlags,
|
||
movingEntityId: captured.Input.MovingEntityId);
|
||
|
||
var divergences = new List<string>();
|
||
|
||
AddIfDifferent(divergences, "Result.Position",
|
||
captured.Result.Position, harnessResult.Position);
|
||
AddIfDifferent(divergences, "Result.CellId",
|
||
$"0x{captured.Result.CellId:X8}", $"0x{harnessResult.CellId:X8}");
|
||
AddIfDifferent(divergences, "Result.IsOnGround",
|
||
captured.Result.IsOnGround, harnessResult.IsOnGround);
|
||
AddIfDifferent(divergences, "Result.CollisionNormalValid",
|
||
captured.Result.CollisionNormalValid, harnessResult.CollisionNormalValid);
|
||
if (captured.Result.CollisionNormalValid && harnessResult.CollisionNormalValid)
|
||
{
|
||
AddIfDifferent(divergences, "Result.CollisionNormal",
|
||
captured.Result.CollisionNormal, harnessResult.CollisionNormal);
|
||
}
|
||
|
||
AddIfDifferent(divergences, "BodyAfter.Position",
|
||
captured.BodyAfter.Position, body.Position);
|
||
AddIfDifferent(divergences, "BodyAfter.ContactPlaneValid",
|
||
captured.BodyAfter.ContactPlaneValid, body.ContactPlaneValid);
|
||
if (captured.BodyAfter.ContactPlaneValid && body.ContactPlaneValid)
|
||
{
|
||
AddIfDifferent(divergences, "BodyAfter.ContactPlane.Normal",
|
||
captured.BodyAfter.ContactPlane.Normal, body.ContactPlane.Normal);
|
||
AddIfDifferent(divergences, "BodyAfter.ContactPlane.D",
|
||
captured.BodyAfter.ContactPlane.D, body.ContactPlane.D);
|
||
}
|
||
AddIfDifferent(divergences, "BodyAfter.WalkablePolygonValid",
|
||
captured.BodyAfter.WalkablePolygonValid, body.WalkablePolygonValid);
|
||
AddIfDifferent(divergences, "BodyAfter.TransientState",
|
||
$"0x{captured.BodyAfter.TransientState:X}",
|
||
$"0x{(uint)body.TransientState:X}");
|
||
|
||
if (divergences.Count > 0)
|
||
{
|
||
string summary = string.Join("\n * ", divergences);
|
||
string header = string.Format(System.Globalization.CultureInfo.InvariantCulture,
|
||
"Door-bug harness replay of captured tick {0} diverges from live engine. " +
|
||
"Input: currentPos=({1:F4},{2:F4},{3:F4}) targetPos=({4:F4},{5:F4},{6:F4}) " +
|
||
"cellId=0x{7:X8} isOnGround={8}",
|
||
captured.Tick,
|
||
captured.Input.CurrentPos.X, captured.Input.CurrentPos.Y, captured.Input.CurrentPos.Z,
|
||
captured.Input.TargetPos.X, captured.Input.TargetPos.Y, captured.Input.TargetPos.Z,
|
||
captured.Input.CellId, captured.Input.IsOnGround);
|
||
throw new Xunit.Sdk.XunitException(
|
||
header + "\nDivergences (live -> harness):\n * " + summary);
|
||
}
|
||
}
|
||
|
||
private static PhysicsBody SeedBodyFromSnapshot(PhysicsBodySnapshot snap) => new()
|
||
{
|
||
Position = snap.Position,
|
||
Orientation = snap.Orientation,
|
||
Velocity = snap.Velocity,
|
||
Acceleration = snap.Acceleration,
|
||
Omega = snap.Omega,
|
||
GroundNormal = snap.GroundNormal,
|
||
SlidingNormal = snap.SlidingNormal,
|
||
ContactPlaneValid = snap.ContactPlaneValid,
|
||
ContactPlane = snap.ContactPlane,
|
||
ContactPlaneCellId = snap.ContactPlaneCellId,
|
||
ContactPlaneIsWater = snap.ContactPlaneIsWater,
|
||
WalkablePolygonValid = snap.WalkablePolygonValid,
|
||
WalkablePlane = snap.WalkablePlane,
|
||
WalkableVertices = snap.WalkableVertices,
|
||
WalkableUp = snap.WalkableUp,
|
||
Elasticity = snap.Elasticity,
|
||
Friction = snap.Friction,
|
||
State = (PhysicsStateFlags)snap.State,
|
||
TransientState = (TransientStateFlags)snap.TransientState,
|
||
LastUpdateTime = snap.LastUpdateTime,
|
||
};
|
||
|
||
private static void AddIfDifferent<T>(
|
||
List<string> divergences, string name, T live, T harness)
|
||
{
|
||
if (EqualityComparer<T>.Default.Equals(live, harness)) return;
|
||
divergences.Add(string.Format(System.Globalization.CultureInfo.InvariantCulture,
|
||
"{0}: live={1} harness={2}", name, live, harness));
|
||
}
|
||
|
||
private static void AddIfDifferent(
|
||
List<string> divergences, string name, Vector3 live, Vector3 harness)
|
||
{
|
||
if (Vector3.DistanceSquared(live, harness) < 1e-6f) return;
|
||
divergences.Add(string.Format(System.Globalization.CultureInfo.InvariantCulture,
|
||
"{0}: live=({1:F4},{2:F4},{3:F4}) harness=({4:F4},{5:F4},{6:F4})",
|
||
name, live.X, live.Y, live.Z, harness.X, harness.Y, harness.Z));
|
||
}
|
||
|
||
private static void AddIfDifferent(
|
||
List<string> divergences, string name, float live, float harness)
|
||
{
|
||
if (MathF.Abs(live - harness) < 1e-3f) return;
|
||
divergences.Add(string.Format(System.Globalization.CultureInfo.InvariantCulture,
|
||
"{0}: live={1:F4} harness={2:F4}", name, live, harness));
|
||
}
|
||
|
||
private static string FixtureDir =>
|
||
Path.Combine(SolutionRoot(), "tests", "AcDream.Core.Tests",
|
||
"Fixtures", "door-bug");
|
||
|
||
private static string SolutionRoot()
|
||
{
|
||
var dir = AppContext.BaseDirectory;
|
||
while (!string.IsNullOrEmpty(dir))
|
||
{
|
||
if (File.Exists(Path.Combine(dir, "AcDream.slnx")))
|
||
return dir;
|
||
dir = Path.GetDirectoryName(dir);
|
||
}
|
||
throw new InvalidOperationException(
|
||
"Could not locate AcDream.slnx from " + AppContext.BaseDirectory);
|
||
}
|
||
}
|