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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 5cd776914a docs: movement deep dive — AC2D + holtburger cross-reference 
Exhaustive analysis of two working AC clients revealing three critical
findings that reshape acdream's movement system:

1. Server-authoritative Z: neither AC2D nor holtburger computes local
   terrain Z for the player. AC2D sends keys, receives position. Holtburger
   dead-reckons for smoothing but the server overrides.

2. Terrain split formula mismatch: AC2D and ACViewer's render path use
   0x0CCAC033-based FSplitNESW; WorldBuilder (our source) uses a different
   214614067-based physics formula. Our terrain mesh triangulation doesn't
   match the real AC client's, causing Z mismatches on slopes.

3. Movement deduplication: MoveToState sent once per state change, not per
   frame. AutonomousPosition heartbeat every 1 second.

Also adds AC2D to CLAUDE.md reference repos section.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-12 21:52:12 +02:00
docs docs: movement deep dive — AC2D + holtburger cross-reference 2026-04-12 21:52:12 +02:00
src fix(app): terrain cull exempt + yaw preservation on Tab toggle 2026-04-12 21:35:40 +02:00
tests fix(app): multi-point Z sampling + never-cull player landblock 2026-04-12 21:29:54 +02:00
.gitignore chore: phase 0 — skeleton + dat asset inventory 2026-04-10 09:02:56 +02:00
AcDream.slnx feat(net): AcDream.Core.Net scaffold + ISAAC keystream (Phase 4.1) 2026-04-11 14:14:28 +02:00
CLAUDE.md docs: movement deep dive — AC2D + holtburger cross-reference 2026-04-12 21:52:12 +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.