106 lines
4.4 KiB
C#
106 lines
4.4 KiB
C#
using System.Collections.Generic;
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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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namespace AcDream.Content.Tests;
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/// <summary>
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/// AP-155 population MEASUREMENT ONLY (contract
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/// <c>docs/research/2026-08-07-s2-static-sphere-contract.md</c>, "Measurement"
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/// section) — not a gate. Counts, over the installed <c>client_portal.dat</c>
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/// Setups (the same <c>dats.GetAllIdsOfType<Setup>()</c> enumeration
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/// <see cref="InstalledSetupCollisionReachabilityTests"/> and
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/// <see cref="InstalledSetupBspPrimitiveDispatchTests"/> already sweep), how
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/// many actually REACH the fixed static-publication Sphere emission — i.e.
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/// <see cref="ShadowShapeBuilder.FromSetup"/>'s production dispatch, at
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/// scale 1, emits ONLY <see cref="ShadowCollisionType.Sphere"/> shapes for
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/// them. That dispatch (not a raw "has Spheres, no CylSpheres" field read) is
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/// the correct population: a Setup can carry authored Spheres and STILL never
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/// reach the sphere branch if a physics-BSP part suppresses it (AP-152) — 99
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/// of the 3,605 "sphere-only, no cylinder" Setups the reachability sweep
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/// already counted fall into exactly that trap.
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/// </summary>
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[Trait("Lane", "InstalledDat")]
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public sealed class StaticSpherePopulationMeasurementTests
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{
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[Fact]
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public void InstalledSetups_SphereOnlyStaticPopulation_Measured()
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{
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string? datDir = ContentConformanceDats.ResolveDatDir();
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if (datDir is null)
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{
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Console.WriteLine("SKIP: installed retail DAT directory is unavailable.");
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Assert.Fail("Lane=InstalledDat requires an installed retail DAT directory; see docs/release-gate.md.");
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}
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using var dats = new DatCollection(datDir, DatAccessType.Read);
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// Production physics-BSP predicate — same as
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// InstalledSetupBspPrimitiveDispatchTests / FlatCollisionAssetBuilder.cs:377-380.
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var physicsBspCache = new Dictionary<uint, bool>();
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bool HasPhysicsBsp(uint gfxObjId)
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{
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if (physicsBspCache.TryGetValue(gfxObjId, out bool cached))
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return cached;
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bool result =
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dats.Portal.TryGet<GfxObj>(gfxObjId, out GfxObj? gfx)
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&& gfx is not null
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&& gfx.Flags.HasFlag(GfxObjFlags.HasPhysics)
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&& gfx.PhysicsBSP?.Root is not null
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&& gfx.VertexArray is not null;
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physicsBspCache[gfxObjId] = result;
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return result;
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}
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int totalSetups = 0;
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int sphereOnlyReachable = 0;
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var samples = new List<uint>();
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foreach (uint id in dats.GetAllIdsOfType<Setup>())
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{
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if (!dats.Portal.TryGet<Setup>(id, out Setup? setup) || setup is null)
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continue;
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totalSetups++;
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// The classifier: production FromSetup output, not raw Setup
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// fields — this is what a landblock static entity built from
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// this Setup actually registers.
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var shapes = ShadowShapeBuilder.FromSetup(setup, 1f, HasPhysicsBsp);
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if (shapes.Count == 0)
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continue;
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bool sphereOnly = true;
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foreach (var shape in shapes)
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{
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if (shape.CollisionType != ShadowCollisionType.Sphere)
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{
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sphereOnly = false;
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break;
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}
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}
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if (!sphereOnly)
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continue;
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sphereOnlyReachable++;
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if (samples.Count < 3)
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samples.Add(id);
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}
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Console.WriteLine("===== AP-155 static-sphere population measurement =====");
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Console.WriteLine($"Total installed Setups: {totalSetups}");
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Console.WriteLine($"Reach the static Sphere emission (post-fix, production dispatch): {sphereOnlyReachable}");
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Console.WriteLine("Three example object ids:");
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foreach (uint sample in samples)
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Console.WriteLine($" 0x{sample:X8}");
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Console.WriteLine("=========================================================");
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// Structural sanity only — this is a measurement, not a gate.
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Assert.True(totalSetups > 0, "Expected the installed DAT to enumerate at least one Setup.");
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Assert.True(
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sphereOnlyReachable > 0,
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"Expected at least one Setup to reach the static Sphere emission in the installed DAT.");
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}
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}
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