refactor(streaming): extract landblock physics publisher
Move streamed terrain/cell/building and static collision publication behind a focused update-thread owner. Preserve retail publication order while making replacement and retirement exact by logical landblock ownership, including current-cell rebasing and adjacent-seam isolation. Co-authored-by: Codex <noreply@openai.com>
This commit is contained in:
Erik
parent
acb6b34d01
commit
3613d393e6
7 changed files with 1538 additions and 546 deletions
654
src/AcDream.App/Streaming/LandblockPhysicsPublisher.cs
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654
src/AcDream.App/Streaming/LandblockPhysicsPublisher.cs
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@ -0,0 +1,654 @@
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using System.Diagnostics;
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using System.Numerics;
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using AcDream.Core.Physics;
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using AcDream.Core.World;
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namespace AcDream.App.Streaming;
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/// <summary>
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/// Exact receipt for the two physics-owned stages of one accepted landblock
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/// publication. The render publisher commits buildings and EnvCells between
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/// these stages without recomputing the captured origin.
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/// </summary>
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public sealed class LandblockPhysicsPublication
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{
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internal LandblockPhysicsPublication(
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object owner,
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LandblockBuild build,
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Vector3 origin)
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{
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Owner = owner;
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Build = build;
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Origin = origin;
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}
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internal object Owner { get; }
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internal LandblockBuild Build { get; }
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internal bool CompletionCommitted { get; set; }
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public uint LandblockId => Build.Landblock.LandblockId;
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public Vector3 Origin { get; }
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}
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/// <summary>
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/// Cumulative update-thread diagnostics for physics publication and removal.
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/// Durations are <see cref="Stopwatch"/> ticks.
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/// </summary>
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public readonly record struct LandblockPhysicsPublisherDiagnostics(
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long BeginCount,
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long CompleteCount,
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long BasePublishTicks,
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long GfxCacheTicks,
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long CompletePublishTicks,
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long CellSurfaceCount,
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long PortalPlaneCount,
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long BuildingCount,
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long StaticBspOwnerCount,
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long StaticCylinderOwnerCount,
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long RefloodCount,
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long DemotionCount,
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long FullRemovalCount);
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/// <summary>
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/// Update-thread owner of streamed landblock physics publication. It consumes
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/// only the immutable build payload: terrain, cells, portal planes, building
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/// collision, cached GfxObj shapes, static BSP/cylinder registration, and the
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/// final cross-cell reflood. It has no DAT reader or residency policy.
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/// </summary>
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/// <remarks>
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/// The order preserves retail <c>CObjCell::init_objects</c> (0x0052B420),
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/// <c>CPhysicsObj::recalc_cross_cells</c> (0x00515A30),
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/// <c>CBuildingObj::find_building_collisions</c> (0x006B5300), and
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/// <c>CPhysicsObj::add_shadows_to_cells</c> (0x00514AE0). The BSP-or-Setup
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/// collision gate follows <c>CPhysicsObj::FindObjCollisions</c> (0x0050F050).
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/// Building shells use the per-landcell building channel; ordinary statics
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/// use one multipart shadow owner or the mutually exclusive Setup
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/// cylinder/sphere fallback.
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/// </remarks>
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public sealed class LandblockPhysicsPublisher
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{
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private readonly object _receiptOwner = new();
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private readonly PhysicsEngine _physicsEngine;
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private readonly PhysicsDataCache _physicsDataCache;
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private readonly float[] _heightTable;
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private long _beginCount;
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private long _completeCount;
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private long _basePublishTicks;
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private long _gfxCacheTicks;
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private long _completePublishTicks;
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private long _cellSurfaceCount;
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private long _portalPlaneCount;
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private long _buildingCount;
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private long _staticBspOwnerCount;
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private long _staticCylinderOwnerCount;
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private long _refloodCount;
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private long _demotionCount;
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private long _fullRemovalCount;
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public LandblockPhysicsPublisher(
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PhysicsEngine physicsEngine,
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float[] heightTable)
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{
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ArgumentNullException.ThrowIfNull(physicsEngine);
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ArgumentNullException.ThrowIfNull(heightTable);
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if (heightTable.Length < 256)
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throw new ArgumentException(
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"The retail terrain height table must contain at least 256 entries.",
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nameof(heightTable));
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_physicsEngine = physicsEngine;
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_physicsDataCache = physicsEngine.DataCache
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?? throw new ArgumentException(
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"The physics engine must own its canonical data cache before publication wiring.",
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nameof(physicsEngine));
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_heightTable = (float[])heightTable.Clone();
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}
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public LandblockPhysicsPublisherDiagnostics Diagnostics => new(
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_beginCount,
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_completeCount,
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_basePublishTicks,
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_gfxCacheTicks,
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_completePublishTicks,
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_cellSurfaceCount,
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_portalPlaneCount,
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_buildingCount,
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_staticBspOwnerCount,
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_staticCylinderOwnerCount,
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_refloodCount,
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_demotionCount,
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_fullRemovalCount);
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/// <summary>
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/// Publishes terrain, EnvCell physics, portal planes, and building shells.
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/// The render publisher completes its building/EnvCell transaction before
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/// <see cref="CompletePublication"/> publishes ordinary static collision.
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/// </summary>
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public LandblockPhysicsPublication BeginPublication(
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LandblockRenderPublication renderPublication)
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{
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ArgumentNullException.ThrowIfNull(renderPublication);
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LandblockBuild build = renderPublication.Build;
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Vector3 origin = renderPublication.Origin;
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if (!IsFinite(origin))
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throw new ArgumentOutOfRangeException(nameof(renderPublication));
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long started = Stopwatch.GetTimestamp();
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LoadedLandblock landblock = build.Landblock;
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PhysicsDatBundle datBundle =
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landblock.PhysicsDats ?? PhysicsDatBundle.Empty;
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uint currentCellId = _physicsDataCache.CellGraph.CurrCell?.Id ?? 0u;
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uint landblockX = (landblock.LandblockId >> 24) & 0xFFu;
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uint landblockY = (landblock.LandblockId >> 16) & 0xFFu;
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// A publication is an exact replacement for this landblock prefix.
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// CacheCellStruct/CacheBuilding intentionally use retail first-wins
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// semantics within one pass, so retire the prior pass before adding
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// the replacement. Adjacent prefixes remain untouched.
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_physicsDataCache.RemoveCellsForLandblock(landblock.LandblockId);
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_physicsDataCache.RemoveBuildingsForLandblock(landblock.LandblockId);
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_physicsDataCache.CellGraph.RemoveEnvCellsForLandblock(
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landblock.LandblockId);
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// TerrainInfo.Type occupies bits 2-6. The low byte retains those bits
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// plus Road (bits 0-1), which TerrainSurface masks independently.
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var terrainBytes = new byte[81];
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for (int i = 0; i < terrainBytes.Length; i++)
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terrainBytes[i] = (byte)(ushort)landblock.Heightmap.Terrain[i];
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var terrainSurface = new TerrainSurface(
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landblock.Heightmap.Height,
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_heightTable,
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landblockX,
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landblockY,
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terrainBytes);
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var cellSurfaces = new List<CellSurface>();
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var portalPlanes = new List<PortalPlane>();
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DatReaderWriter.DBObjs.LandBlockInfo? landblockInfo = datBundle.Info;
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if (landblockInfo is not null && landblockInfo.NumCells > 0)
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{
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uint firstCellId =
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(landblock.LandblockId & 0xFFFF0000u) | 0x0100u;
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for (uint offset = 0; offset < landblockInfo.NumCells; offset++)
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{
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uint envCellId = firstCellId + offset;
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if (!datBundle.EnvCells.TryGetValue(envCellId, out var envCell))
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continue;
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if (envCell.EnvironmentId == 0)
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continue;
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if (!datBundle.Environments.TryGetValue(
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0x0D000000u | envCell.EnvironmentId,
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out var environment))
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{
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continue;
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}
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if (!environment.Cells.TryGetValue(
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envCell.CellStructure,
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out var cellStruct))
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{
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continue;
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}
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Quaternion rotation = envCell.Position.Orientation;
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Vector3 cellOriginWorld = envCell.Position.Origin + origin;
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Matrix4x4 physicsCellTransform =
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Matrix4x4.CreateFromQuaternion(rotation)
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* Matrix4x4.CreateTranslation(cellOriginWorld);
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_physicsDataCache.CacheCellStruct(
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envCellId,
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envCell,
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cellStruct,
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physicsCellTransform);
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var worldVertices = new Dictionary<ushort, Vector3>(
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cellStruct.VertexArray.Vertices.Count);
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foreach ((ushort vertexId, var vertex) in
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cellStruct.VertexArray.Vertices)
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{
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Vector3 worldPosition =
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Vector3.Transform(vertex.Origin, rotation)
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+ cellOriginWorld;
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worldVertices[(ushort)vertexId] = worldPosition;
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}
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var polygonVertexIds = new List<List<short>>(
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cellStruct.PhysicsPolygons.Count);
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foreach (var polygon in cellStruct.PhysicsPolygons.Values)
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{
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var vertexIds = new List<short>(polygon.VertexIds.Count);
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foreach (short vertexId in polygon.VertexIds)
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vertexIds.Add(vertexId);
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polygonVertexIds.Add(vertexIds);
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}
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cellSurfaces.Add(new CellSurface(
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envCellId,
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worldVertices,
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polygonVertexIds));
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// CellPortal.PolygonId indexes rendering Polygons, not
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// PhysicsPolygons (ACViewer EnvCell.find_transit_cells).
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foreach (var portal in envCell.CellPortals)
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{
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if (!cellStruct.Polygons.TryGetValue(
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portal.PolygonId,
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out var polygon)
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|| polygon.VertexIds.Count < 3)
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{
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continue;
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}
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var portalVertices = new Vector3[polygon.VertexIds.Count];
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bool allFound = true;
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for (int index = 0; index < polygon.VertexIds.Count; index++)
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{
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if (!worldVertices.TryGetValue(
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(ushort)polygon.VertexIds[index],
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out portalVertices[index]))
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{
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allFound = false;
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break;
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}
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}
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if (!allFound)
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continue;
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portalPlanes.Add(PortalPlane.FromVertices(
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portalVertices.AsSpan(),
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portal.OtherCellId,
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envCellId & 0xFFFFu,
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(ushort)portal.Flags));
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}
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}
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}
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int buildingCount = PublishBuildings(
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landblock,
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datBundle,
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landblockInfo,
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terrainSurface,
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origin);
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_physicsEngine.AddLandblock(
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landblock.LandblockId,
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terrainSurface,
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cellSurfaces,
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portalPlanes,
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origin.X,
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origin.Y);
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if ((currentCellId & 0xFFFF0000u)
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== (landblock.LandblockId & 0xFFFF0000u))
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{
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_physicsEngine.UpdatePlayerCurrCell(currentCellId);
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}
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_cellSurfaceCount += cellSurfaces.Count;
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_portalPlaneCount += portalPlanes.Count;
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_buildingCount += buildingCount;
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_beginCount++;
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_basePublishTicks += Stopwatch.GetTimestamp() - started;
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return new LandblockPhysicsPublication(
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_receiptOwner,
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build,
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origin);
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}
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/// <summary>
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/// Publishes ordinary static collision and refloods after the caller has
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/// completed the render-owned building/EnvCell suffix. The callback keeps
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/// the shipped per-entity light-before-collision order until checkpoint E
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/// moves static presentation into the transaction coordinator.
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/// </summary>
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public void CompletePublication(
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LandblockPhysicsPublication publication,
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Action<WorldEntity>? beforeStaticCollision = null)
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{
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ArgumentNullException.ThrowIfNull(publication);
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if (!ReferenceEquals(publication.Owner, _receiptOwner))
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throw new ArgumentException(
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"The physics publication receipt belongs to another publisher.",
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nameof(publication));
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if (publication.CompletionCommitted)
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return;
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long completedStarted = Stopwatch.GetTimestamp();
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LoadedLandblock landblock = publication.Build.Landblock;
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PhysicsDatBundle datBundle =
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landblock.PhysicsDats ?? PhysicsDatBundle.Empty;
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long cacheStarted = Stopwatch.GetTimestamp();
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foreach (WorldEntity entity in landblock.Entities)
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{
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foreach (MeshRef meshRef in entity.MeshRefs)
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{
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if ((meshRef.GfxObjId & 0xFF000000u) != 0x01000000u)
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continue;
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if (datBundle.GfxObjs.TryGetValue(meshRef.GfxObjId, out var gfx))
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_physicsDataCache.CacheGfxObj(meshRef.GfxObjId, gfx);
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}
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}
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_gfxCacheTicks += Stopwatch.GetTimestamp() - cacheStarted;
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// The immutable entity list is an exact Near snapshot. Retire every
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// static owner created by the prior snapshot before registering this
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// one; RegisterMultiPart can replace matching IDs but cannot discover
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// owners omitted by a ForceReload/reapply. Logical-owner removal also
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// clears footprints flooded across an adjacent landblock seam.
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_physicsEngine.ShadowObjects.DeregisterStaticOwnersForLandblock(
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landblock.LandblockId);
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int landblockBspCount = 0;
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int landblockCylinderCount = 0;
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int landblockNoCollisionCount = 0;
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int sceneryTried = 0;
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foreach (WorldEntity entity in landblock.Entities)
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{
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beforeStaticCollision?.Invoke(entity);
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// Retail building shells collide exclusively through the
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// per-landcell building channel. They never become ordinary
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// shadow objects, even when their source Setup has cylinders.
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if (entity.IsBuildingShell)
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continue;
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int entityBspCount = 0;
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int entityCylinderCount = 0;
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uint sourcePrefix =
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entity.SourceGfxObjOrSetupId & 0xFF000000u;
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bool isOutdoorMesh =
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(entity.Id & 0x80000000u) != 0
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|| (entity.Id < 0x40000000u
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&& (sourcePrefix == 0x01000000u
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|| sourcePrefix == 0x02000000u));
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if (isOutdoorMesh)
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sceneryTried++;
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IReadOnlyList<ShadowShape> bspShapes =
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ShadowShapeBuilder.FromLandblockBspParts(
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entity.MeshRefs,
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entity.IsBuildingShell,
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_physicsDataCache.GetGfxObj);
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entityBspCount = bspShapes.Count;
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if (entityBspCount > 0)
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{
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_physicsEngine.ShadowObjects.RegisterMultiPart(
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entity.Id,
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entity.Position,
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entity.Rotation,
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bspShapes,
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0u,
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EntityCollisionFlags.None,
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publication.Origin.X,
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publication.Origin.Y,
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landblock.LandblockId,
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seedCellId: entity.ParentCellId ?? 0u,
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isStatic: true);
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LogMultipartRegistration(landblock, entity, bspShapes);
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}
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SetupPhysics? setup =
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_physicsDataCache.GetSetup(entity.SourceGfxObjOrSetupId);
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if (setup is not null && entityBspCount == 0)
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{
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float scale = entity.Scale > 0f ? entity.Scale : 1f;
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var setupShapes = new List<ShadowShape>();
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for (int cylinderIndex = 0;
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cylinderIndex < setup.CylSpheres.Count;
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cylinderIndex++)
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{
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DatReaderWriter.Types.CylSphere cylinder =
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setup.CylSpheres[cylinderIndex];
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float radius = cylinder.Radius * scale;
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float baseHeight = cylinder.Height > 0f
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? cylinder.Height
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: cylinder.Radius * 4f;
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float height = baseHeight * scale;
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if (radius <= 0f)
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continue;
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Vector3 localOffset = cylinder.Origin * scale;
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setupShapes.Add(new ShadowShape(
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GfxObjId: entity.SourceGfxObjOrSetupId,
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LocalPosition: localOffset,
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LocalRotation: Quaternion.Identity,
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Scale: scale,
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CollisionType: ShadowCollisionType.Cylinder,
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Radius: radius,
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CylHeight: height));
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}
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if (setup.CylSpheres.Count == 0)
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{
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for (int sphereIndex = 0;
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sphereIndex < setup.Spheres.Count;
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sphereIndex++)
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{
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DatReaderWriter.Types.Sphere sphere =
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setup.Spheres[sphereIndex];
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if (sphere.Radius <= 0f)
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continue;
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float radius = sphere.Radius * scale;
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Vector3 localOffset = sphere.Origin * scale;
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Vector3 localBaseOffset = localOffset
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+ Vector3.Transform(
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-Vector3.UnitZ * radius,
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Quaternion.Inverse(entity.Rotation));
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setupShapes.Add(new ShadowShape(
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GfxObjId: entity.SourceGfxObjOrSetupId,
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LocalPosition: localBaseOffset,
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LocalRotation: Quaternion.Identity,
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Scale: scale,
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CollisionType: ShadowCollisionType.Cylinder,
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Radius: radius,
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CylHeight: radius * 2f));
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}
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}
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if (setup.CylSpheres.Count == 0
|
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&& setup.Spheres.Count == 0
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&& setup.Radius > 0f)
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{
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float radius = setup.Radius * scale;
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float height = (setup.Height > 0f
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? setup.Height
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: setup.Radius * 2f) * scale;
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setupShapes.Add(new ShadowShape(
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GfxObjId: entity.SourceGfxObjOrSetupId,
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LocalPosition: Vector3.Zero,
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LocalRotation: Quaternion.Identity,
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Scale: scale,
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CollisionType: ShadowCollisionType.Cylinder,
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Radius: radius,
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CylHeight: height));
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}
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if (setupShapes.Count > 0)
|
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{
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_physicsEngine.ShadowObjects.RegisterMultiPart(
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entity.Id,
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entity.Position,
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entity.Rotation,
|
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setupShapes,
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0u,
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EntityCollisionFlags.None,
|
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publication.Origin.X,
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publication.Origin.Y,
|
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landblock.LandblockId,
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seedCellId: entity.ParentCellId ?? 0u,
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isStatic: true);
|
||||
LogSetupRegistration(landblock, entity, setupShapes);
|
||||
entityCylinderCount = setupShapes.Count;
|
||||
}
|
||||
}
|
||||
|
||||
if (entityBspCount > 0)
|
||||
landblockBspCount++;
|
||||
if (entityCylinderCount > 0)
|
||||
landblockCylinderCount++;
|
||||
if (entityBspCount == 0 && entityCylinderCount == 0
|
||||
&& (sourcePrefix == 0x01000000u
|
||||
|| sourcePrefix == 0x02000000u))
|
||||
{
|
||||
landblockNoCollisionCount++;
|
||||
}
|
||||
}
|
||||
|
||||
if (PhysicsDiagnostics.ProbeBuildingEnabled && sceneryTried > 0)
|
||||
{
|
||||
Console.WriteLine(
|
||||
$"lb 0x{landblock.LandblockId:X8}: scenery tried={sceneryTried} " +
|
||||
$"(outdoorNone={landblockNoCollisionCount})");
|
||||
}
|
||||
LogMissingSceneryBounds(landblock);
|
||||
|
||||
_physicsEngine.ShadowObjects.RefloodLandblock(landblock.LandblockId);
|
||||
_refloodCount++;
|
||||
|
||||
_staticBspOwnerCount += landblockBspCount;
|
||||
_staticCylinderOwnerCount += landblockCylinderCount;
|
||||
publication.CompletionCommitted = true;
|
||||
_completeCount++;
|
||||
_completePublishTicks +=
|
||||
Stopwatch.GetTimestamp() - completedStarted;
|
||||
}
|
||||
|
||||
public void DemoteToTerrain(uint landblockId)
|
||||
{
|
||||
_physicsEngine.DemoteLandblockToTerrain(landblockId);
|
||||
_demotionCount++;
|
||||
}
|
||||
|
||||
public void RemoveLandblock(uint landblockId)
|
||||
{
|
||||
_physicsEngine.RemoveLandblock(landblockId);
|
||||
_fullRemovalCount++;
|
||||
}
|
||||
|
||||
private int PublishBuildings(
|
||||
LoadedLandblock landblock,
|
||||
PhysicsDatBundle datBundle,
|
||||
DatReaderWriter.DBObjs.LandBlockInfo? landblockInfo,
|
||||
TerrainSurface terrainSurface,
|
||||
Vector3 origin)
|
||||
{
|
||||
if (landblockInfo is null || landblockInfo.Buildings.Count == 0)
|
||||
return 0;
|
||||
|
||||
uint landblockPrefix = landblock.LandblockId & 0xFFFF0000u;
|
||||
foreach (var building in landblockInfo.Buildings)
|
||||
{
|
||||
var portals = new List<BldPortalInfo>(building.Portals.Count);
|
||||
foreach (var portal in building.Portals)
|
||||
{
|
||||
portals.Add(new BldPortalInfo(
|
||||
otherCellId: landblockPrefix | (uint)portal.OtherCellId,
|
||||
otherPortalId: unchecked((short)portal.OtherPortalId),
|
||||
flags: (ushort)portal.Flags));
|
||||
}
|
||||
|
||||
Vector3 buildingOrigin = building.Frame.Origin + origin;
|
||||
Matrix4x4 buildingTransform =
|
||||
Matrix4x4.CreateFromQuaternion(building.Frame.Orientation)
|
||||
* Matrix4x4.CreateTranslation(buildingOrigin);
|
||||
uint landcellLow = terrainSurface.ComputeOutdoorCellId(
|
||||
building.Frame.Origin.X,
|
||||
building.Frame.Origin.Y);
|
||||
uint landcellId = landblockPrefix | landcellLow;
|
||||
|
||||
uint shellPartZero = building.ModelId;
|
||||
if ((shellPartZero & 0xFF000000u) == 0x02000000u)
|
||||
{
|
||||
datBundle.Setups.TryGetValue(
|
||||
building.ModelId,
|
||||
out var setup);
|
||||
shellPartZero = setup is not null && setup.Parts.Count > 0
|
||||
? setup.Parts[0]
|
||||
: 0u;
|
||||
}
|
||||
_physicsDataCache.CacheBuilding(
|
||||
landcellId,
|
||||
portals,
|
||||
buildingTransform,
|
||||
modelId: shellPartZero);
|
||||
}
|
||||
return landblockInfo.Buildings.Count;
|
||||
}
|
||||
|
||||
private static void LogSetupRegistration(
|
||||
LoadedLandblock landblock,
|
||||
WorldEntity entity,
|
||||
IReadOnlyList<ShadowShape> shapes)
|
||||
{
|
||||
if (!PhysicsDiagnostics.ProbeBuildingEnabled)
|
||||
return;
|
||||
|
||||
for (int index = 0; index < shapes.Count; index++)
|
||||
{
|
||||
Console.WriteLine(FormattableString.Invariant(
|
||||
$"[entity-source] id=0x{entity.Id:X8} entityId=0x{entity.Id:X8} src=0x{entity.SourceGfxObjOrSetupId:X8} gfxObj=0x{shapes[index].GfxObjId:X8} lb=0x{landblock.LandblockId:X8} type=Cylinder note=setup-part{index} state=0x{0u:X8} flags={EntityCollisionFlags.None}"));
|
||||
}
|
||||
}
|
||||
|
||||
private static void LogMultipartRegistration(
|
||||
LoadedLandblock landblock,
|
||||
WorldEntity entity,
|
||||
IReadOnlyList<ShadowShape> shapes)
|
||||
{
|
||||
if (!PhysicsDiagnostics.ProbeBuildingEnabled)
|
||||
return;
|
||||
|
||||
for (int index = 0; index < shapes.Count; index++)
|
||||
{
|
||||
Console.WriteLine(FormattableString.Invariant(
|
||||
$"[entity-source] id=0x{entity.Id:X8} entityId=0x{entity.Id:X8} src=0x{entity.SourceGfxObjOrSetupId:X8} gfxObj=0x{shapes[index].GfxObjId:X8} lb=0x{landblock.LandblockId:X8} type=BSP note=multipart-part{index} hasPhys=true state=0x{0u:X8} flags={EntityCollisionFlags.None}"));
|
||||
}
|
||||
}
|
||||
|
||||
private void LogMissingSceneryBounds(LoadedLandblock landblock)
|
||||
{
|
||||
if (!PhysicsDiagnostics.ProbeBuildingEnabled)
|
||||
return;
|
||||
|
||||
int missingCount = 0;
|
||||
var samples = new List<uint>();
|
||||
foreach (WorldEntity entity in landblock.Entities)
|
||||
{
|
||||
if ((entity.Id & 0x80000000u) == 0)
|
||||
continue;
|
||||
|
||||
bool hasBounds = false;
|
||||
foreach (MeshRef meshRef in entity.MeshRefs)
|
||||
{
|
||||
GfxObjVisualBounds? bounds =
|
||||
_physicsDataCache.GetVisualBounds(meshRef.GfxObjId);
|
||||
if (bounds is not null && bounds.Radius > 0f)
|
||||
{
|
||||
hasBounds = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (hasBounds)
|
||||
continue;
|
||||
|
||||
missingCount++;
|
||||
if (samples.Count < 3)
|
||||
samples.Add(entity.SourceGfxObjOrSetupId);
|
||||
}
|
||||
|
||||
if (missingCount > 0)
|
||||
{
|
||||
string sampleText = string.Join(",", samples.Select(
|
||||
value => $"0x{value:X8}"));
|
||||
Console.WriteLine(
|
||||
$" → {missingCount} scenery entities had no visual bounds cached. " +
|
||||
$"Samples: {sampleText}");
|
||||
}
|
||||
}
|
||||
|
||||
private static bool IsFinite(Vector3 value) =>
|
||||
float.IsFinite(value.X)
|
||||
&& float.IsFinite(value.Y)
|
||||
&& float.IsFinite(value.Z);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue