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Modern open-source C# .NET 10 Asheron's Call client. Faithful port of retail client behaviour to Silk.NET with a plugin API.
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Erik d5e37694ed docs(sky): port plan for PhysicsScript/fog/lightning/crossfade 
Captures where we stand after Phase 4b and lays out the remaining
retail-faithful port work across four phases (5-8):

- Phase 5: PhysicsScript loader + runtime + sky lifecycle. Replaces
  WeatherSystem's crude "DayGroup name contains Rainy → spawn rain"
  shortcut with retail's actual PES-driven particle emission.
- Phase 6: Fog on sky meshes. The sky frag currently ignores fog
  uniforms; retail's D3D fog applies to sky.
- Phase 7: Lightning flash trigger + thunder audio for storm keyframes.
- Phase 8: Weather / DayGroup crossfade (DAT_008427a9 / _DAT_008427b8
  lerp) + AdminEnvirons override → fog crossfade.

User observation 2026-04-23 during Phase 4b verification: "Now it is
raining when it should not be." Root cause traced to the
SetKindFromDayGroupName string match firing rain particles on a "Rainy"
DayGroup regardless of whether that DayGroup actually has a visible
rain-emitting SkyObject. Proper fix requires porting PhysicsScript.

Also commits the earlier research from agent Q1-Q6:
`docs/research/2026-04-23-sky-material-state.md`.

Four parallel decompile agents are in flight as of this commit:
- PhysicsScript dat + runtime
- Sky↔PES wiring + emitter lifecycle
- Lightning + weather crossfade
- Fog on sky + vertex distance

Phase 5 implementation starts once those land.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-24 10:53:46 +02:00
docs docs(sky): port plan for PhysicsScript/fog/lightning/crossfade 2026-04-24 10:53:46 +02:00
memory docs(memory): session 2026-04-19 handoff — remote motion port complete 2026-04-19 21:33:12 +02:00
src sky(phase-4b): clamp sky vTint at vertex + 1.0 fragment cap for retail parity 2026-04-24 10:41:58 +02:00
tests sky(phase-3e): drive WeatherSystem from DayGroup name — no more rogue rain 2026-04-24 09:32:27 +02:00
tools sky(phase-3g): fix LCG multiplier — 360 (DaysPerYear), not 7620 2026-04-24 10:17:38 +02:00
.gitignore chore: gitignore launch.log 2026-04-18 23:11:56 +02:00
AcDream.slnx sky(phase-3g): fix LCG multiplier — 360 (DaysPerYear), not 7620 2026-04-24 10:17:38 +02:00
CLAUDE.md docs(claude.md): add 'Running the client against the live server' section 2026-04-19 14:58:13 +02:00
README.md chore: phase 0 — skeleton + dat asset inventory 2026-04-10 09:02:56 +02:00

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 directory
  • references/ — 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.