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feat(streaming): load surface shell + player slab instead of vertical box

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MDietermann
2026-06-01 18:51:38 +02:00
parent 9daa9f8267
commit 43527e617b
4 changed files with 99 additions and 28 deletions
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38
VoxelEngine.Tests/Streaming/ChunkStreamerTests.cs
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@@ -44,7 +44,8 @@ internal sealed class EmptyMesher : IChunkMesher
public class ChunkStreamerTests
{
private static (ChunkStreamer streamer, World.World world, List<FakeRenderer> created) CreateStreamer(Configuration cfg)
private static (ChunkStreamer streamer, World.World world, List<FakeRenderer> created) CreateStreamer(
Configuration cfg, Func<int, int, int>? surfaceHeightAt = null)
{
var registry = new BlockRegistry();
var store = new InMemoryChunkModificationStore();
@@ -59,7 +60,8 @@ public class ChunkStreamerTests
return r;
};
Func<Vector3i, VoxelChunk> generate = _ => new VoxelChunk();
var streamer = new ChunkStreamer(cfg, world, generate, mesher, registry, executor, factory);
Func<int, int, int> height = surfaceHeightAt ?? ((_, _) => 8);
var streamer = new ChunkStreamer(cfg, world, generate, height, mesher, registry, executor, factory);
return (streamer, world, created);
}
@@ -186,7 +188,7 @@ public class ChunkStreamerTests
int localIndex = (5 * VoxelChunk.Size + 6) * VoxelChunk.Size + 7;
store.RecordEdit(pos, localIndex, registry.Stone.Id);
var streamer = new ChunkStreamer(cfg, world, generate, mesher, registry, executor, factory);
var streamer = new ChunkStreamer(cfg, world, generate, (_, _) => 8, mesher, registry, executor, factory);
streamer.Tick(pos);
Assert.Equal(registry.Stone.Id, world.GetBlock(5, 6, 7).Id);
@@ -232,7 +234,7 @@ public class ChunkStreamerTests
var executor = new SynchronousJobExecutor();
Func<float[], IChunkRenderer> factory = m => new FakeRenderer(m);
Func<Vector3i, VoxelChunk> generate = _ => new VoxelChunk();
var streamer = new ChunkStreamer(cfg, world, generate, mesher, registry, executor, factory);
var streamer = new ChunkStreamer(cfg, world, generate, (_, _) => 8, mesher, registry, executor, factory);
var pos = new Vector3i(0, 0, 0);
streamer.Tick(pos);
@@ -348,7 +350,7 @@ public class ChunkStreamerTests
};
Func<float[], IChunkRenderer> factory = m => new FakeRenderer(m);
var streamer = new ChunkStreamer(cfg, world, generate, mesher, registry, executor, factory);
var streamer = new ChunkStreamer(cfg, world, generate, (_, _) => 8, mesher, registry, executor, factory);
streamer.Tick(new Vector3i(0, 0, 0));
Assert.Equal(1, generateCalls);
@@ -382,7 +384,7 @@ public class ChunkStreamerTests
};
Func<Vector3i, VoxelChunk> generate = _ => new VoxelChunk();
var streamer = new ChunkStreamer(cfg, world, generate, mesher, registry, executor, factory);
var streamer = new ChunkStreamer(cfg, world, generate, (_, _) => 8, mesher, registry, executor, factory);
var pos = new Vector3i(0, 0, 0);
streamer.Tick(pos);
@@ -419,4 +421,28 @@ public class ChunkStreamerTests
Assert.Null(world.GetChunk(new Vector3i(0, 3, 0)));
Assert.Null(world.GetChunk(new Vector3i(0, 1, 0)));
}
[Fact]
public void Tick_LoadsSurfaceShell_AndExcludesAirAboveSurface()
{
var cfg = new Configuration
{
RenderDistanceHorizontal = 0, // single column at the player
RenderDistanceVertical = 0, // slab is just the player's chunk
SurfaceShellSkirtBelow = 1,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
// Surface at worldY 40 → chunk Y 2. Shell = [2-1, 2] = {1, 2}. Slab at
// player Y=0 = {0}. Union = {0, 1, 2}. Chunk Y 3+ is air above surface.
var (streamer, world, _) = CreateStreamer(cfg, surfaceHeightAt: (_, _) => 40);
streamer.Tick(new Vector3i(0, 0, 0));
Assert.NotNull(world.GetChunk(new Vector3i(0, 0, 0))); // slab
Assert.NotNull(world.GetChunk(new Vector3i(0, 1, 0))); // shell skirt
Assert.NotNull(world.GetChunk(new Vector3i(0, 2, 0))); // shell surface
Assert.Null(world.GetChunk(new Vector3i(0, 3, 0))); // air above surface — not loaded
Assert.Null(world.GetChunk(new Vector3i(0, 5, 0))); // air above surface — not loaded
}
}