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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 4b01c95ecb fix(app): Phase A.1 — run StreamingController.Tick before WorldSession.Tick 
Fourth Phase A.1 hotfix. Terrain rendered correctly after the 0xFFFF
fix and the canonicalize fix, but live NPCs and weenies remained
invisible. Root cause: in OnUpdate the live session was draining its
incoming-message queue BEFORE the streaming controller had a chance
to load the initial 5×5 window. The first frame's order was:

  1. _liveSession.Tick() — drains the post-login CreateObject flood
     (40+ NPCs + items at the player's spawn landblock)
  2. _streamingController.Tick() — first call, loads the 5×5 window

AppendLiveEntity is a no-op when its target landblock isn't loaded
yet. So all 40+ spawns landed in step 1 before any landblock existed
in GpuWorldState, were silently dropped, and never came back even
after the landblocks finished loading in step 2.

Fix: swap the order. Streaming runs first so the initial window
exists in GpuWorldState before any CreateObject events drain. This is
correct because the streaming Tick is now synchronous (per the
531c9f9 hotfix) — by the time it returns, all landblocks in the
window are loaded and ready for AppendLiveEntity to find them.

A more robust solution would be a pending-spawn list inside
GpuWorldState that backfills entities when their landblock loads
later. That stays as a future improvement; the simple reorder is
correct for the dominant case (login → flood of spawns into the
already-known initial landblock).

212 tests green.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 23:13:25 +02:00
docs fix(app): Phase A.1 — separate Visible from Resident in StreamingRegion 2026-04-11 22:08:17 +02:00
src fix(app): Phase A.1 — run StreamingController.Tick before WorldSession.Tick 2026-04-11 23:13:25 +02:00
tests fix(app): Phase A.1 — encode landblock IDs with 0xFFFF terminator, not 0xFFFE 2026-04-11 22:59:21 +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(claude): tighten operating instructions + roadmap discipline + subagent policy 2026-04-11 21:48:19 +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.