feat(core): S1 one CellStruct interpretation, installed-DAT scan, retire AP-234
Campaign OVERHAUL S1 chunk B. - CellMesh.Build's render role is deleted; CellMesh.HasDrawableGeometry is the exact predicate (any sides_type candidate whose resolved surface passes the built-EnvCell (Surface.Type & 6) != 0 test), and the streaming build job consumes it. Core and Content no longer carry two CellStruct interpretations. - Installed-DAT scan over the complete Environment corpus (5,346 landblocks, 729,888 cells, 8,601,560 polygons, 8,608,746 candidates): 3,197 old-rule admissions were untextured surfaces the NoPos proxy let through; zero new-only; zero unexplained; zero unknown sides values; counts pinned as goldens against the contract's DAT hashes. - Canonical pins: 0xF4180104 has eight ST_DOUBLE clip-map polygons and 44 drawable side calls; the canonical NoPos surfaces are type 0x11 and are constructed but skipped; two independent extractions of all ten canonical cells hash identically. - AP-234 retired from the divergence register (161 active rows) with ConstructMesh 0x0059DFA0 / DrawEnvCell 0x0059F170 / DrawMesh 0x0059D4A0. - StipplingSurfaceEquivalenceTests no longer claims a build-time NoPos skip; the cell half is report-only, the building half stays pinned. - Inventory and policy remarks updated; plan ledger records chunk A and the capture kit. Core Meshing+Conformance 95/95, Content 208/208 (Lane!=Timing, Lane!=PreparedPackage), App EnvCell/LandblockBuild/Streaming 432/432, Release solution build 0 warnings / 0 errors. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Erik
parent
acf172469e
commit
b681717c30
9 changed files with 631 additions and 154 deletions
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Security.Cryptography;
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using AcDream.Core.Meshing;
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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.Abstractions;
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using RetailCullMode = DatReaderWriter.Enums.CullMode;
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namespace AcDream.Content.Tests;
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/// <summary>
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/// OH2/S1 chunk B (docs/research/2026-09-01-overhaul/oh2-cellstruct-surface-contract.md
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/// §10.3/§10.4): the installed-DAT proof that retail's exact CellStruct
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/// surface/subset construction (<see cref="CellStructSideCandidates"/>,
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/// <c>MeshExtractor.PrepareCellStructMeshData</c>,
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/// <see cref="RetailUntexturedSurfacePolicy"/>) replaces the retired
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/// build-time <c>Stippling.NoPos</c> approximation (AP-234) without
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/// changing what the COMPLETE installed corpus admits.
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///
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/// DAT identity this evidence was captured against (contract §1):
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/// client_portal.dat DC6E500BA22E6B186DB7171E3F3345238B6444C85D798ADC85E550973B8D12E4
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/// client_cell_1.dat 6DB0ABF00FBCEED62C3F1EE842EE7C1F423D732BED77A5B7C102EE89A52AB99E
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/// client_highres.dat 503E0828D14F2F9CCBC31431E1055AC188464BF4B499DE37F4C3D5B2D9F3E727
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/// client_local_English.dat E85C820280C88FAC7DF6C8043F5E24596E9C8774193AF4123D756546F78FB2BB
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/// A hash change on any of these DATs is expected to move the pinned counts
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/// below; that is the point of pinning them (a silent regression in the
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/// extraction algorithm itself would move them too, on the SAME dat set).
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/// </summary>
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[Trait("Lane", "InstalledDat")]
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public sealed class CellStructSurfaceConstructionInstalledDatTests {
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private readonly ITestOutputHelper _out;
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public CellStructSurfaceConstructionInstalledDatTests(ITestOutputHelper output) => _out = output;
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// Contract §10.3's ten canonical evidence cells: eight cathedral-area
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// cells sharing three Environments, plus the Facility Hub's two-cell
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// vertical stair pair.
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private static readonly uint[] CanonicalCellIds = {
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0xF4180100u, 0xF4180101u, 0xF4180104u, 0xF4180106u, 0xF4180107u,
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0xF4180112u, 0xF4180113u, 0xF4180114u,
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0x8A02015Eu, 0x8A02015Fu,
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};
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private static MeshExtractor NewExtractor(DatCollection dats) {
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var reader = new DatCollectionAdapter(dats);
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return new MeshExtractor(reader, new TestConsoleLogger(), sideStagedSink: null);
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}
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// ------------------------------------------------------------------
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// §10.4 — complete installed-DAT admission-delta scan.
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// ------------------------------------------------------------------
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/// <summary>
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/// Walks every EnvCell actually present in client_cell_1.dat (not the
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/// contract's exploratory 89th-cell stride sample) and, for every
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/// polygon construction candidate
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/// (<see cref="CellStructSideCandidates.GetCandidates"/>), classifies
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/// admission under the OLD rule (<c>!NoPos</c> on the positive side,
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/// <c>!NoNeg</c> on the ST_BOTH negative side — MeshExtractor's
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/// pre-OH2 <c>hasPos</c>/<c>hasNeg</c> gate, contract §5.1) against the
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/// exact NEW rule (resolved <c>Surface.Type & (BASE1_IMAGE|BASE1_CLIPMAP)
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/// ) != 0</c>). Every delta must be explained by the surface-type fact
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/// that produced it: this is the complete-corpus successor to the
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/// contract §6 exploratory stride sample (which found 55 concrete
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/// "not-NoPos + untextured" false admissions under the OLD rule).
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/// </summary>
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[Fact]
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public void InstalledDatScan_EveryOldNewAdmissionDeltaIsExplainedBySurfaceType() {
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var datDir = ContentConformanceDats.ResolveDatDir();
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if (datDir is null) { Assert.Fail("Lane=InstalledDat requires an installed retail DAT directory; see docs/release-gate.md."); return; }
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var stopwatch = Stopwatch.StartNew();
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using var dats = new DatCollection(datDir, DatAccessType.Read);
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long landblocksVisited = 0;
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long landblocksWithCells = 0;
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long cellsVisited = 0;
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long cellsWithGeometry = 0;
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long missingEnvironmentOrStruct = 0;
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long polygons = 0;
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long candidates = 0;
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long unknownSidesType = 0;
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long unresolvedSurfaceSlots = 0;
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long oldOnly = 0; // old=emit, new=skip
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long newOnly = 0; // old=skip, new=emit
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var unexplained = new List<string>();
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// Per-EnvCell surface cache: one wall/floor texture is referenced by
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// many polygons within a single cell; re-resolving the same Surface
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// dat record per polygon would be wasted I/O across ~10^5 EnvCells.
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var slotCache = new Dictionary<int, Surface?>();
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// Neither EnvCell nor LandBlockInfo carries a usable
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// Chorizite.DatReaderWriter DBObjType id-range/mask (both are
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// landblock-RELATIVE types — every landblock reuses the same low
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// 16-bit id space 0x0100..0xFFFD for its own cells — so
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// DatCollection.GetAllIdsOfType<EnvCell>()/<LandBlockInfo>() return
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// EMPTY: verified empirically 2026-09-02, then confirmed by
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// decompiling DatReaderWriter.Lib.DBObjAttributeCache via ilspycmd
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// (EnvCell's own [DBObjType] attribute carries FirstId=LastId=
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// MaskId=0; DatDatabase.GetAllIdsOfType only consults
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// Tree.GetFilesInRange(FirstId,LastId), never the per-landblock
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// catch-all TypeFromId path DBObjTypeFromId falls back to for the
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// Cell dat). The complete corpus therefore requires the same
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// landblock-prefix walk LandblockBuildFactory/StipplingSurface
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// EquivalenceTests already use per-fixture, run over the WHOLE
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// 0x0000-0xFFFF landblock-prefix space instead of a hardcoded
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// fixture list — exactly the shape of the contract §6 exploratory
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// sample's own "734,976 candidate EnvCell ids", but complete
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// (every candidate, not every 89th).
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for (uint landblockPrefix = 0; landblockPrefix <= 0xFFFFu; landblockPrefix++) {
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uint lbId = landblockPrefix << 16;
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var lbInfo = dats.Get<LandBlockInfo>(lbId | 0xFFFEu);
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if (lbInfo is null) continue;
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landblocksVisited++;
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if (lbInfo.NumCells == 0) continue;
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landblocksWithCells++;
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for (uint low = 0x0100u; low < 0x0100u + lbInfo.NumCells; low++) {
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uint envCellId = lbId | low;
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cellsVisited++;
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var envCell = dats.Get<EnvCell>(envCellId);
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if (envCell is null || envCell.EnvironmentId == 0) continue;
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uint envId = 0x0D000000u | envCell.EnvironmentId;
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var environment = dats.Get<DatReaderWriter.DBObjs.Environment>(envId);
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if (environment is null || !environment.Cells.TryGetValue(envCell.CellStructure, out var cellStruct)) {
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missingEnvironmentOrStruct++;
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continue;
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}
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cellsWithGeometry++;
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slotCache.Clear();
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Surface? ResolveSlot(int slot) {
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if (slotCache.TryGetValue(slot, out var cached)) return cached;
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Surface? resolved = null;
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if (slot >= 0 && slot < envCell.Surfaces.Count) {
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uint surfaceId = 0x08000000u | envCell.Surfaces[slot];
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resolved = dats.Get<Surface>(surfaceId);
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}
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slotCache[slot] = resolved;
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return resolved;
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}
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foreach (var (polyId, poly) in cellStruct.Polygons) {
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if (poly.VertexIds.Count < 3) continue;
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polygons++;
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ReadOnlySpan<CellStructSideCandidate> polyCandidates =
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CellStructSideCandidates.GetCandidates((int)poly.SidesType);
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if (polyCandidates.Length == 0) {
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unknownSidesType++;
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continue;
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}
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foreach (var candidate in polyCandidates) {
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candidates++;
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bool isPositive = candidate.SurfaceSlot == CellStructPolygonSurfaceSide.Positive;
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short slotRaw = isPositive ? poly.PosSurface : poly.NegSurface;
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bool oldAdmitted = isPositive
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? !poly.Stippling.HasFlag(StipplingType.NoPos)
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: !poly.Stippling.HasFlag(StipplingType.NoNeg);
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Surface? surface = ResolveSlot(slotRaw);
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if (surface is null) {
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unresolvedSurfaceSlots++;
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continue;
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}
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bool newAdmitted = (surface.Type & (SurfaceType.Base1Image | SurfaceType.Base1ClipMap)) != 0;
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if (oldAdmitted && !newAdmitted) {
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oldOnly++;
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bool untextured = (surface.Type & (SurfaceType.Base1Image | SurfaceType.Base1ClipMap)) == 0;
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if (!untextured)
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unexplained.Add($"OLD-ONLY unexplained: envCell=0x{envCellId:X8} env=0x{envId:X8} struct={envCell.CellStructure} poly={polyId} side={candidate.SurfaceSlot} slot={slotRaw} type=0x{(uint)surface.Type:X8}");
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}
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else if (!oldAdmitted && newAdmitted) {
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newOnly++;
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bool uvAbsenceBitSet = isPositive
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? poly.Stippling.HasFlag(StipplingType.NoPos)
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: poly.Stippling.HasFlag(StipplingType.NoNeg);
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if (!uvAbsenceBitSet)
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unexplained.Add($"NEW-ONLY unexplained: envCell=0x{envCellId:X8} env=0x{envId:X8} struct={envCell.CellStructure} poly={polyId} side={candidate.SurfaceSlot} slot={slotRaw} type=0x{(uint)surface.Type:X8} stippling={poly.Stippling}");
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}
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}
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}
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}
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}
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stopwatch.Stop();
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_out.WriteLine($"duration: {stopwatch.Elapsed}");
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_out.WriteLine($"landblocksVisited={landblocksVisited} landblocksWithCells={landblocksWithCells}");
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_out.WriteLine($"cellsVisited={cellsVisited} cellsWithGeometry={cellsWithGeometry} missingEnvironmentOrStruct={missingEnvironmentOrStruct}");
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_out.WriteLine($"polygons={polygons} candidates={candidates} unknownSidesType={unknownSidesType} unresolvedSurfaceSlots={unresolvedSurfaceSlots}");
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_out.WriteLine($"oldOnly={oldOnly} newOnly={newOnly} unexplained={unexplained.Count}");
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foreach (var line in unexplained.Take(50)) _out.WriteLine(" " + line);
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Assert.Empty(unexplained);
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// Golden counts pinned against the DAT identity in the class
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// docstring (contract §1). A DAT change or an extraction-algorithm
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// regression moves these; that visibility is the point of pinning
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// them (contract §10.4's "run the complete installed Environment/
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// EnvCell corpus... every old/new admission delta must have the
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// exact Surface.Type & 6 explanation").
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Assert.Equal(CellStructInstalledDatGolden.CellsVisited, cellsVisited);
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Assert.Equal(CellStructInstalledDatGolden.CellsWithGeometry, cellsWithGeometry);
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Assert.Equal(CellStructInstalledDatGolden.MissingEnvironmentOrStruct, missingEnvironmentOrStruct);
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Assert.Equal(CellStructInstalledDatGolden.Polygons, polygons);
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Assert.Equal(CellStructInstalledDatGolden.Candidates, candidates);
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Assert.Equal(CellStructInstalledDatGolden.UnknownSidesType, unknownSidesType);
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Assert.Equal(CellStructInstalledDatGolden.UnresolvedSurfaceSlots, unresolvedSurfaceSlots);
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Assert.Equal(CellStructInstalledDatGolden.OldOnly, oldOnly);
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Assert.Equal(CellStructInstalledDatGolden.NewOnly, newOnly);
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}
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// ------------------------------------------------------------------
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// §10.3 — canonical evidence pins.
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// ------------------------------------------------------------------
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/// <summary>
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/// Pin 1: 0xF4180104's eight ST_DOUBLE clip-map polygons and 44 total
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/// drawable side calls across the WHOLE cell — retail's 36 ordinary
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/// (forward, positive-normal) drawable candidates plus the 8 additional
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/// reversed negative-normal copies the ST_DOUBLE polygons contribute
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/// (contract §6): the old NoPos-proxy audit's "36-positive-only"
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/// headline never counted the second copy at all.
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/// </summary>
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[Fact]
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public void Cell0xF4180104_HasEightStDoubleClipMapPolygonsAndFortyFourDrawableSideCalls() {
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var datDir = ContentConformanceDats.ResolveDatDir();
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if (datDir is null) { Assert.Fail("Lane=InstalledDat requires an installed retail DAT directory; see docs/release-gate.md."); return; }
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using var dats = new DatCollection(datDir, DatAccessType.Read);
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const uint envCellId = 0xF4180104u;
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var (envCell, _, cellStruct) = ResolveCanonicalCell(dats, envCellId);
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int stDoubleCount = 0;
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int drawableSideCalls = 0;
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var slotCache = new Dictionary<int, Surface?>();
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Surface? ResolveSlot(int slot) {
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if (slotCache.TryGetValue(slot, out var cached)) return cached;
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Surface? resolved = null;
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if (slot >= 0 && slot < envCell.Surfaces.Count) {
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uint surfaceId = 0x08000000u | envCell.Surfaces[slot];
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resolved = dats.Get<Surface>(surfaceId);
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}
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slotCache[slot] = resolved;
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return resolved;
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}
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foreach (var poly in cellStruct.Polygons.Values) {
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if (poly.VertexIds.Count < 3) continue;
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if (poly.SidesType == RetailCullMode.None) stDoubleCount++; // raw sides_type 1 = ST_DOUBLE
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foreach (var candidate in CellStructSideCandidates.GetCandidates((int)poly.SidesType)) {
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bool isPositive = candidate.SurfaceSlot == CellStructPolygonSurfaceSide.Positive;
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short slotRaw = isPositive ? poly.PosSurface : poly.NegSurface;
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var surface = ResolveSlot(slotRaw);
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if (surface is null) continue;
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if (!RetailUntexturedSurfacePolicy.IsUntextured(surface.Type))
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drawableSideCalls++;
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}
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}
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_out.WriteLine($"0xF4180104: stDoubleCount={stDoubleCount} drawableSideCalls={drawableSideCalls}");
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Assert.Equal(8, stDoubleCount);
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Assert.Equal(44, drawableSideCalls);
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}
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/// <summary>
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/// Pin 2: across all ten canonical cells, every polygon whose positive
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/// side is NoPos-stippled resolves to a Surface whose raw Type is
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/// exactly 0x11 (BASE1_SOLID | TRANSLUCENT — untextured), AND that
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/// surface slot is absent from the emitted prepared mesh (constructed —
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/// the slot has at least one admission candidate by
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/// <see cref="CellStructSideCandidates.GetCandidates"/> construction —
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/// but skipped at built-EnvCell admission, contract §4/§6).
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/// </summary>
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[Fact]
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public void CanonicalCells_NoPosSurfacesAreType0x11AndConstructedButSkipped() {
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var datDir = ContentConformanceDats.ResolveDatDir();
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if (datDir is null) { Assert.Fail("Lane=InstalledDat requires an installed retail DAT directory; see docs/release-gate.md."); return; }
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using var dats = new DatCollection(datDir, DatAccessType.Read);
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var extractor = NewExtractor(dats);
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int noPosSurfacesChecked = 0;
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foreach (uint envCellId in CanonicalCellIds) {
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var (envCell, _, cellStruct) = ResolveCanonicalCell(dats, envCellId);
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var noPosSlots = new HashSet<int>();
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foreach (var poly in cellStruct.Polygons.Values) {
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if (poly.VertexIds.Count < 3) continue;
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if (!poly.Stippling.HasFlag(StipplingType.NoPos)) continue;
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if (poly.PosSurface < 0 || poly.PosSurface >= envCell.Surfaces.Count) continue;
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uint surfaceId = 0x08000000u | envCell.Surfaces[poly.PosSurface];
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var surface = dats.Get<Surface>(surfaceId);
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Assert.NotNull(surface);
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Assert.Equal(0x11u, (uint)surface!.Type);
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noPosSlots.Add(poly.PosSurface);
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noPosSurfacesChecked++;
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}
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if (noPosSlots.Count == 0) continue;
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ObjectMeshData? mesh = extractor.PrepareMeshData(envCellId | 0x1_0000_0000UL, isSetup: false);
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Assert.NotNull(mesh);
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var emittedSlots = CellSurfaceSubsets.InAscendingSurfaceOrder(mesh!)
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.Select(b => b.SourceSurfaceIndex)
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.ToHashSet();
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foreach (int slot in noPosSlots)
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Assert.DoesNotContain(slot, emittedSlots);
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}
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_out.WriteLine($"noPosSurfacesChecked={noPosSurfacesChecked} across {CanonicalCellIds.Length} canonical cells");
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Assert.True(noPosSurfacesChecked > 0, "expected at least one NoPos polygon across the canonical cells (contract §6)");
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}
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/// <summary>
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/// Pin 3: two independent extraction runs of every canonical cell
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/// produce a bit-identical SHA-256 over the emitted subset records
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/// (SourceSurfaceIndex, RawSurfaceType, RetailSurfaceMask, index count,
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/// total mesh vertex count), walked in
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/// <see cref="CellSurfaceSubsets.InAscendingSurfaceOrder"/> — proving
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/// the ascending-source-surface-index order is independent of
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/// dictionary/hash iteration order (contract §3.6, §10.3).
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/// </summary>
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[Fact]
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public void CanonicalCells_EmittedSubsetHash_IsDeterministicAcrossTwoRuns() {
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var datDir = ContentConformanceDats.ResolveDatDir();
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if (datDir is null) { Assert.Fail("Lane=InstalledDat requires an installed retail DAT directory; see docs/release-gate.md."); return; }
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using var dats = new DatCollection(datDir, DatAccessType.Read);
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foreach (uint envCellId in CanonicalCellIds) {
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// Fresh MeshExtractor per run: proves determinism is a property
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// of the extraction algorithm itself, not of any state an
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// extractor instance happens to retain (decoded-texture cache,
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// solid-color cache) across calls.
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var extractor1 = NewExtractor(dats);
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var extractor2 = NewExtractor(dats);
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ObjectMeshData? mesh1 = extractor1.PrepareMeshData(envCellId | 0x1_0000_0000UL, isSetup: false);
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ObjectMeshData? mesh2 = extractor2.PrepareMeshData(envCellId | 0x1_0000_0000UL, isSetup: false);
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Assert.NotNull(mesh1);
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Assert.NotNull(mesh2);
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string hash1 = HashCellSubsets(mesh1!);
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string hash2 = HashCellSubsets(mesh2!);
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_out.WriteLine($"0x{envCellId:X8} hash={hash1}");
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Assert.Equal(hash1, hash2);
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}
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}
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private static string HashCellSubsets(ObjectMeshData mesh) {
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using var stream = new System.IO.MemoryStream();
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||||
using (var writer = new System.IO.BinaryWriter(stream, System.Text.Encoding.UTF8, leaveOpen: true)) {
|
||||
writer.Write(mesh.Vertices.Length);
|
||||
foreach (var batch in CellSurfaceSubsets.InAscendingSurfaceOrder(mesh)) {
|
||||
writer.Write(batch.SourceSurfaceIndex);
|
||||
writer.Write(batch.RawSurfaceType);
|
||||
writer.Write(batch.RetailSurfaceMask);
|
||||
writer.Write(batch.Indices.Count);
|
||||
}
|
||||
}
|
||||
return Convert.ToHexString(SHA256.HashData(stream.ToArray()));
|
||||
}
|
||||
|
||||
private static (EnvCell envCell, uint envId, DatReaderWriter.Types.CellStruct cellStruct) ResolveCanonicalCell(
|
||||
DatCollection dats, uint envCellId) {
|
||||
var envCell = dats.Get<EnvCell>(envCellId);
|
||||
Assert.NotNull(envCell);
|
||||
uint envId = 0x0D000000u | envCell!.EnvironmentId;
|
||||
var environment = dats.Get<DatReaderWriter.DBObjs.Environment>(envId);
|
||||
Assert.NotNull(environment);
|
||||
Assert.True(environment!.Cells.TryGetValue(envCell.CellStructure, out var cellStruct),
|
||||
$"EnvCell 0x{envCellId:X8}: Environment 0x{envId:X8} has no CellStruct {envCell.CellStructure}");
|
||||
return (envCell, envId, cellStruct!);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Golden counts for
|
||||
/// <see cref="CellStructSurfaceConstructionInstalledDatTests.InstalledDatScan_EveryOldNewAdmissionDeltaIsExplainedBySurfaceType"/>,
|
||||
/// pinned against the DAT identity in that class's docstring. Regenerate by
|
||||
/// reading the test's own diagnostic output after a deliberate DAT/
|
||||
/// extraction-algorithm change and updating every field together — a
|
||||
/// partial update would silently weaken the pin.
|
||||
/// </summary>
|
||||
internal static class CellStructInstalledDatGolden {
|
||||
// Captured 2026-09-02 against the DAT identity in the class docstring
|
||||
// (contract §1); landblocksVisited=5346, landblocksWithCells=3405 are
|
||||
// printed diagnostics only (not pinned — they describe the world's
|
||||
// overall building/dungeon density, orthogonal to this contract).
|
||||
public const long CellsVisited = 729888;
|
||||
public const long CellsWithGeometry = 729888;
|
||||
public const long MissingEnvironmentOrStruct = 0;
|
||||
public const long Polygons = 8601560;
|
||||
public const long Candidates = 8608746;
|
||||
public const long UnknownSidesType = 0;
|
||||
public const long UnresolvedSurfaceSlots = 0;
|
||||
|
||||
// oldOnly (old=emit/new=skip, i.e. "not-NoPos + untextured" — the exact
|
||||
// false-admission class the contract's own exploratory 1-in-89 stride
|
||||
// sample estimated at 55 hits in 97,020 polygons): the complete corpus
|
||||
// finds 3,197 in 8,601,560 polygons, same order of magnitude and same
|
||||
// direction. newOnly (old=skip/new=emit, i.e. "NoPos + textured") is
|
||||
// exactly 0 across the WHOLE installed corpus — the complete-corpus
|
||||
// confirmation of the stride sample's own "NoPos + textured surface = 0"
|
||||
// finding (contract §6).
|
||||
public const long OldOnly = 3197;
|
||||
public const long NewOnly = 0;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue