Verbatim copy of 5 WorldBuilder files into src/AcDream.Core/Rendering/Wb/:
- TextureHelpers.cs (pixel-format decoders, Chorizite Lib)
- SceneryHelpers.cs (scenery transforms, Chorizite Lib)
- TerrainUtils.cs, TerrainEntry.cs, CellSplitDirection.cs (WB.Shared Landscape)
Namespace migrated from WorldBuilder.* / Chorizite.OpenGLSDLBackend.Lib
to AcDream.Core.Rendering.Wb per O-D11. [MemoryPackable] stripped from
TerrainEntry per O-D10 (we don't serialize the struct).
Updated 3 source files + 1 test file to import from the new namespace.
Verbatim discipline (O-D1): only namespace + MemoryPack attribute changed.
All algorithm bodies byte-identical to upstream.
Note: TextureHelpers omits IsAlphaFormat() and GetCompressedLayerSize()
because those reference Chorizite.Core.Render.Enums.TextureFormat, a type
that has no path into AcDream.Core without adding an unwanted NuGet dep.
Neither method is called from Core or the test suite; the omission is safe.
Verified on main checkout: dotnet build green (0 errors), dotnet test
green — Failed: 8, Passed: 1147, Skipped: 0, Total: 1155 (baseline maintained).
TextureDecodeConformanceTests (9/9) pass byte-for-byte after namespace swap.
AcDream.Core project alone builds green in this worktree (App-layer failures
are pre-existing, blocked by empty WB submodule, addressed in Tasks 3+4).
Spec: docs/superpowers/specs/2026-05-21-phase-o-dat-path-unification-design.md
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Addresses code-review feedback on commit 26cf2b8. The dropped
ArgumentException length guards were correct to drop because
DatReaderWriter.LandBlock self-initializes Terrain[] and Height[]
to length 81 in its constructor — but that invariant was not
documented anywhere visible to future readers. Adds an XML doc
<remarks> block explaining the guarantee so callers constructing
synthetic LandBlocks know what to expect.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase N.1 step 1: WbSceneryAdapter.BuildTerrainEntries converts our
LandBlock dat type into the TerrainEntry[81] shape WorldBuilder's
TerrainUtils / SceneryRenderManager consume.
Field mapping (TerrainInfo → TerrainEntry):
TerrainInfo.Road (bits 0-1) → TerrainEntry.Road
TerrainInfo.Type (bits 2-6) → TerrainEntry.Type
TerrainInfo.Scenery (bits 11-15) → TerrainEntry.Scenery
LandBlock.Height[i] → TerrainEntry.Height
The spec listed the texture property as 'Texture' but TerrainEntry's
actual property is named 'Type' (confirmed from source). The spec also
described LandBlock.Terrain as ushort[81] but it is TerrainInfo[81] —
DatReaderWriter already decodes the bit fields so the adapter uses
TerrainInfo's named properties rather than raw bit-shift expressions.
Spec: docs/superpowers/specs/2026-05-08-phase-n1-scenery-via-wb-helpers-design.md
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
