Modern open-source C# .NET 10 Asheron's Call client. Faithful port of retail client behaviour to Silk.NET with a plugin API.
e6cfcb612b
First of four steps porting WorldBuilder's texture-merge terrain
blending. This commit is pure CPU math with no GL or dat dependencies
so the ported logic can be verified in isolation before it starts
driving real rendering.
Ported:
- GetPalCode(r1..r4, t1..t4): packs corner terrain/road bits into
a 32-bit palette code (bit layout documented in XML comment)
- CalculateSplitDirection: deterministic hash picking SWtoNE vs
SEtoNW triangulation for a cell; magic constants kept exact to
match AC's server-side collision triangulation
- CellSplitDirection enum with values matching WorldBuilder's so
later bit-packing stays byte-identical
Tests (10 new, 58/58 passing total):
- GetPalCode golden value for all-grass-no-roads: 0x10008421
(hand-computed from the bit layout, not derived from a run)
- GetPalCode all-zero produces only the sizeBits marker
- GetPalCode determinism, road-flag isolation (r1 flip touches
only bit 26), size bit always set, terrain region bounded to
bits 0-19
- CalculateSplitDirection hand-computed golden for (0,0,0,0):
(1813693831 - 1369149221) * (1/2^32) ~= 0.1035 < 0.5 -> SWtoNE
- Determinism
- Across a full 8x8 landblock the hash produces a mix of both
split directions (would fail if the hash collapses)
Deferred to Phase 3c.3 (need dat data for TexMerge):
BuildSurface, FillCellData, PseudoRandomIndex, SurfaceInfo
Reference: WorldBuilder Chorizite.OpenGLSDLBackend/Lib/LandSurfaceManager.cs
WorldBuilder.Shared/Modules/Landscape/Lib/TerrainUtils.cs
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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| AcDream.slnx | ||
| README.md | ||
acdream
Experimental modern open-source Asheron's Call client in C# / .NET 10.
Status: pre-alpha, not playable. Phase 0 only — dat file asset inventory.
Stack: .NET 10, Chorizite.DatReaderWriter for dat parsing. Silk.NET + Avalonia planned for rendering/UI (not yet wired up).
Requires: A retail Asheron's Call install (Turbine/Microsoft property — supply your own). Set ACDREAM_DAT_DIR environment variable to the directory containing client_portal.dat, client_cell_1.dat, client_highres.dat, and client_local_English.dat, or pass it as the first CLI argument.
Layout
src/AcDream.Cli/— console app that dumps asset counts from a dat directoryreferences/— local read-only reference material (ACE, ACViewer, WorldBuilder, DatReaderWriter, holtburger, retail AC install). Gitignored.
Run
dotnet run --project src/AcDream.Cli -- "C:\path\to\Asheron's Call"
Or set ACDREAM_DAT_DIR and run without args.