feat(streaming): shadow-publish flat collision assets
Carry one immutable prepared collision closure with each accepted near-tier generation and install graph plus flat views through the same retained publication receipt. Apply the same strict package-only rule to live entities, add exact sampled graph-authoritative comparison artifacts and lifecycle counters, and prove cancellation, demotion, rehydrate, revisit, teardown, reconnect, and the nine-stop route with 14,064 zero-mismatch samples. Co-authored-by: OpenAI Codex <codex@openai.com>
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Erik
parent
f7ff9f4eea
commit
d9446030e6
32 changed files with 2777 additions and 92 deletions
294
tests/AcDream.Core.Tests/Physics/CollisionShadowVerifierTests.cs
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294
tests/AcDream.Core.Tests/Physics/CollisionShadowVerifierTests.cs
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using System.Collections.Immutable;
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using System.Numerics;
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using System.Text.Json;
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using AcDream.Core.Physics;
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using DatReaderWriter.Enums;
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using DatReaderWriter.Types;
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namespace AcDream.Core.Tests.Physics;
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public sealed class CollisionShadowVerifierTests
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{
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[Fact]
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public void MatchingDualView_RefereesEveryTraversalWithoutChangingGraph()
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{
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string directory = NewArtifactDirectory();
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PhysicsDataCache cache = CacheWithShadow(directory);
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CellPhysics cell = MatchingCell(0xA9B4_0100u);
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cache.RegisterCellStructForTest(cell.SourceId, cell);
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var transition = SeedTransition();
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Assert.True(CollisionTraversal.HasCellContainment(cache, cell));
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Assert.True(CollisionTraversal.HasPhysics(cache, cell));
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FlatCollisionSphere root =
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CollisionTraversal.RootBoundingSphere(cache, cell);
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Assert.Equal(10f, root.Radius);
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Assert.True(CollisionTraversal.PointInsideCell(
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cache,
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cell,
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Vector3.Zero));
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Assert.True(CollisionTraversal.SphereIntersectsCell(
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cache,
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cell,
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Vector3.Zero,
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0.48f));
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TransitionState state = CollisionTraversal.FindCollisions(
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cache,
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cell,
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transition,
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Vector3.Zero,
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0.48f,
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false,
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Vector3.Zero,
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0f,
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Vector3.Zero,
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Vector3.UnitZ,
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1f,
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Quaternion.Identity,
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engine: null,
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worldOrigin: Vector3.Zero);
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Assert.Equal(TransitionState.OK, state);
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CollisionShadowStats stats = cache.CollisionShadowStats;
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Assert.Equal(6, stats.Queries);
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Assert.Equal(6, stats.Samples);
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Assert.Equal(6, stats.Matches);
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Assert.Equal(0, stats.Mismatches);
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Assert.Equal(0, stats.Faults);
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Assert.Empty(Directory.EnumerateFiles(directory));
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}
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[Fact]
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public void Mismatch_WritesDeterministicArtifactAndReturnsGraphResult()
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{
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string directory = NewArtifactDirectory();
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PhysicsDataCache cache = CacheWithShadow(directory);
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CellPhysics matching = MatchingCell(0xA9B4_0100u);
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CellPhysics mismatched = WithFlatPhysics(
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matching,
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new FlatPhysicsBsp(
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-1,
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ImmutableArray<FlatPhysicsBspNode>.Empty,
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ImmutableArray<int>.Empty,
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FlatPolygonTable.Empty));
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bool graphResult = CollisionTraversal.HasPhysics(cache, mismatched);
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Assert.True(graphResult);
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CollisionShadowStats stats = cache.CollisionShadowStats;
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Assert.Equal(1, stats.Mismatches);
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Assert.Equal(0, stats.Faults);
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string artifact = Assert.Single(Directory.EnumerateFiles(directory));
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Assert.Equal(
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"collision-shadow-00000001.json",
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Path.GetFileName(artifact));
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using JsonDocument json = JsonDocument.Parse(File.ReadAllText(artifact));
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JsonElement root = json.RootElement;
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Assert.Equal(1, root.GetProperty("SchemaVersion").GetInt32());
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Assert.Equal("HasCellPhysics", root.GetProperty("Kind").GetString());
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Assert.Equal("0xA9B40100", root.GetProperty("SourceId").GetString());
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Assert.Equal("Result", root.GetProperty("Difference").GetString());
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Assert.Equal("True", root.GetProperty("Graph").GetString());
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Assert.Equal("False", root.GetProperty("Flat").GetString());
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}
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[Fact]
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public void MissingFlat_IsRecordedAsFaultAndGraphRemainsAuthoritative()
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{
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string directory = NewArtifactDirectory();
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PhysicsDataCache cache = CacheWithShadow(directory);
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CellPhysics cell = WithoutFlatContainment(
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MatchingCell(0xA9B4_0100u));
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bool graphResult = CollisionTraversal.PointInsideCell(
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cache,
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cell,
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Vector3.Zero);
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Assert.True(graphResult);
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Assert.Equal(1, cache.CollisionShadowStats.Faults);
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string artifact = Assert.Single(Directory.EnumerateFiles(directory));
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Assert.Contains(
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"FlatFault",
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File.ReadAllText(artifact),
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StringComparison.Ordinal);
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}
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[Fact]
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public void TransitionCopyAndComparer_CoverCompleteLogicalState()
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{
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Transition source = SeedTransition();
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source.ObjectInfo.State =
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ObjectInfoState.Contact | ObjectInfoState.IsPlayer;
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source.ObjectInfo.TargetId = 0x5000_0001u;
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source.ObjectInfo.VelocityKilled = true;
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source.SpherePath.NumSphere = 2;
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source.SpherePath.LocalSphere[1].Origin = Vector3.UnitZ;
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source.SpherePath.LocalSphere[1].Radius = 0.48f;
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source.SpherePath.CarriedBlockOrigin = new Vector3(192f, -192f, 0f);
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source.SpherePath.SetWalkable(
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new Plane(Vector3.UnitZ, -1f),
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[
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Vector3.Zero,
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Vector3.UnitX,
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Vector3.UnitY,
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],
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Vector3.UnitZ);
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source.SpherePath.CellCandidates.Add(0xA9B4_0001u);
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source.SpherePath.CellCandidates.Add(0xA9B4_0100u);
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source.CollisionInfo.SetContactPlane(
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new Plane(Vector3.UnitZ, -1f),
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0xA9B4_0100u);
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source.CollisionInfo.SetSlidingNormal(Vector3.UnitX);
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source.CollisionInfo.CollideObjectGuids.Add(0x8000_0001u);
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source.CollisionInfo.LastCollidedObjectGuid = 0x8000_0001u;
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var clone = new Transition();
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clone.CopyFrom(source);
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Assert.False(TransitionExactComparer.TryFindDifference(
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source,
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clone,
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out _,
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out _,
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out _));
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clone.SpherePath.WalkableVertices![1].X =
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BitConverter.Int32BitsToSingle(
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BitConverter.SingleToInt32Bits(
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clone.SpherePath.WalkableVertices[1].X) + 1);
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Assert.True(TransitionExactComparer.TryFindDifference(
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source,
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clone,
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out string path,
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out _,
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out _));
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Assert.Equal("SpherePath.WalkableVertices[1]", path);
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}
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[Fact]
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public void DisabledGraphTraversal_AllocatesZeroBytes()
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{
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var cache = new PhysicsDataCache
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{
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CollisionShadow = null,
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};
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CellPhysics cell = MatchingCell(0xA9B4_0100u);
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for (int i = 0; i < 100; i++)
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_ = CollisionTraversal.HasPhysics(cache, cell);
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long before = GC.GetAllocatedBytesForCurrentThread();
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for (int i = 0; i < 10_000; i++)
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_ = CollisionTraversal.HasPhysics(cache, cell);
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long allocated =
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GC.GetAllocatedBytesForCurrentThread() - before;
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Assert.Equal(0, allocated);
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}
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private static PhysicsDataCache CacheWithShadow(string directory)
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{
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var cache = new PhysicsDataCache();
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cache.CollisionShadow = new CollisionShadowVerifier(1, directory);
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return cache;
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}
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private static CellPhysics MatchingCell(uint sourceId)
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{
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var physicsRoot = new PhysicsBSPNode
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{
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Type = BSPNodeType.Leaf,
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BoundingSphere = new Sphere
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{
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Origin = Vector3.Zero,
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Radius = 10f,
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},
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};
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var containmentRoot = new CellBSPNode
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{
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Type = BSPNodeType.Leaf,
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LeafIndex = 1,
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};
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var resolved = new Dictionary<ushort, ResolvedPolygon>();
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return new CellPhysics
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{
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SourceId = sourceId,
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BSP = new PhysicsBSPTree { Root = physicsRoot },
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Resolved = resolved,
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CellBSP = new CellBSPTree { Root = containmentRoot },
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FlatPhysicsBsp =
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FlatCollisionAssetBuilder.FlattenPhysicsBsp(
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physicsRoot,
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resolved),
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FlatContainmentBsp =
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FlatCollisionAssetBuilder.FlattenCellContainmentBsp(
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containmentRoot),
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WorldTransform = Matrix4x4.Identity,
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InverseWorldTransform = Matrix4x4.Identity,
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};
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}
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private static Transition SeedTransition()
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{
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var transition = new Transition();
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transition.SpherePath.InitPath(
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Vector3.Zero,
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Vector3.Zero,
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0xA9B4_0100u,
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0.48f);
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return transition;
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}
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private static CellPhysics WithFlatPhysics(
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CellPhysics source,
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FlatPhysicsBsp flat) => new()
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{
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SourceId = source.SourceId,
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BSP = source.BSP,
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PhysicsPolygons = source.PhysicsPolygons,
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Vertices = source.Vertices,
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WorldTransform = source.WorldTransform,
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InverseWorldTransform = source.InverseWorldTransform,
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Resolved = source.Resolved,
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FlatPhysicsBsp = flat,
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CellBSP = source.CellBSP,
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FlatContainmentBsp = source.FlatContainmentBsp,
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FlatPortalPolygons = source.FlatPortalPolygons,
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FlatTopology = source.FlatTopology,
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Portals = source.Portals,
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PortalPolygons = source.PortalPolygons,
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VisibleCellIds = source.VisibleCellIds,
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SeenOutside = source.SeenOutside,
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};
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private static CellPhysics WithoutFlatContainment(
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CellPhysics source) => new()
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{
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SourceId = source.SourceId,
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BSP = source.BSP,
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PhysicsPolygons = source.PhysicsPolygons,
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Vertices = source.Vertices,
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WorldTransform = source.WorldTransform,
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InverseWorldTransform = source.InverseWorldTransform,
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Resolved = source.Resolved,
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FlatPhysicsBsp = source.FlatPhysicsBsp,
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CellBSP = source.CellBSP,
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FlatContainmentBsp = null,
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FlatPortalPolygons = source.FlatPortalPolygons,
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FlatTopology = source.FlatTopology,
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Portals = source.Portals,
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PortalPolygons = source.PortalPolygons,
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VisibleCellIds = source.VisibleCellIds,
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SeenOutside = source.SeenOutside,
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};
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private static string NewArtifactDirectory()
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{
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string directory = Path.Combine(
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Path.GetTempPath(),
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"acdream-collision-shadow-tests",
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Guid.NewGuid().ToString("N"));
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Directory.CreateDirectory(directory);
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return directory;
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}
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}
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