295bce9bb2
Extends the Loaded result record with a LandblockStreamTier discriminator and a LandblockMeshData payload (default! stub — T13 wires the real off-thread mesh build). Adds the Promoted variant for Far→Near upgrades that only need the entity layer, not a mesh rebuild. LandblockStreamer.HandleJob passes Tier.Near + default! MeshData at the existing synchronous load site; StreamingControllerTests updated to match the new positional signature. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
61 lines
2.5 KiB
C#
61 lines
2.5 KiB
C#
using System.Collections.Generic;
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using AcDream.Core.Terrain;
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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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/// A job posted to <see cref="LandblockStreamer"/>'s inbox. Either a load
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/// (fetch this landblock from the dats and build its CPU-side mesh data)
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/// or an unload (release any state tied to this landblock on the render
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/// thread's next Tick drain).
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/// </summary>
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public abstract record LandblockStreamJob(uint LandblockId)
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{
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public sealed record Load(uint LandblockId, LandblockStreamJobKind Kind) : LandblockStreamJob(LandblockId);
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public sealed record Unload(uint LandblockId) : LandblockStreamJob(LandblockId);
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}
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/// <summary>
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/// Outbox record the render thread drains. Either a successful load, a
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/// failed load (logged and ignored until region recenters off/back), or
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/// an unload notification (tells the render thread to release GPU state
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/// for this landblock id).
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/// </summary>
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public abstract record LandblockStreamResult(uint LandblockId)
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{
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/// <summary>
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/// A landblock load completed. <see cref="Tier"/> distinguishes Far
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/// (terrain only) from Near (terrain + entities). <see cref="MeshData"/>
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/// is built off the render thread on the streaming worker.
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/// </summary>
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public sealed record Loaded(
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uint LandblockId,
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LandblockStreamTier Tier,
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LoadedLandblock Landblock,
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LandblockMeshData MeshData
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) : LandblockStreamResult(LandblockId);
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/// <summary>
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/// A previously-Far-resident landblock was promoted to Near. Terrain
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/// mesh is already on the GPU; the result carries the entity layer
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/// (stabs, buildings, scenery) to merge into the existing GpuWorldState
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/// entry.
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/// </summary>
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public sealed record Promoted(
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uint LandblockId,
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IReadOnlyList<WorldEntity> Entities
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) : LandblockStreamResult(LandblockId);
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public sealed record Failed(uint LandblockId, string Error) : LandblockStreamResult(LandblockId);
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public sealed record Unloaded(uint LandblockId) : LandblockStreamResult(LandblockId);
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/// <summary>
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/// The worker loop itself crashed with an unhandled exception. Not tied
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/// to a specific landblock — distinguished from <see cref="Failed"/>
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/// because consumers typically route this to a fatal-log path rather
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/// than retrying a single landblock later. LandblockId is 0 by
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/// convention; readers should pattern-match on the type, not the id.
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/// </summary>
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public sealed record WorkerCrashed(string Error) : LandblockStreamResult(0);
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}
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