Modern open-source C# .NET 10 Asheron's Call client. Faithful port of retail client behaviour to Silk.NET with a plugin API.
6cda431eae
Completes the encode side of the codec so acdream can stop hand-
assembling outbound packets in tests. Given a PacketHeader (with Flags
set, DataSize ignored/overwritten) and a body byte span, Encode:
1. Overwrites header.DataSize with body.Length
2. Parses the optional section out of the body (reusing
PacketHeaderOptional.Parse as a length measurer) and hashes those bytes
3. If BlobFragments is set, walks the body tail as back-to-back
fragments and sums their Hash32s
4. For unencrypted: header.Checksum = headerHash + optionalHash + fragmentHash
5. For EncryptedChecksum: pulls one ISAAC keystream word and computes
header.Checksum = headerHash + (isaacKey XOR payloadHash)
6. Packs header + body into the final datagram
Tests (6 new, 67 total in net project, 144 across both test projects):
- Unencrypted round-trip: Encode then TryDecode recovers the AckSequence
field
- DataSize is overwritten (caller can pass garbage)
- Encrypted round-trip: two ISAACs with same seed, one encoding and
one decoding, both agree on the keystream word
- Encrypted but no ISAAC → throws InvalidOperationException
- LoginRequest end-to-end: LoginRequest.Build → Encode → TryDecode →
LoginRequest.Parse round-trips credentials exactly. This is the
single most important integration test for the outbound side —
every byte this exercises is exactly what acdream will put on the
wire when Phase 4.6 goes live.
- BlobFragments body with one embedded fragment: Encode preserves
the fragment and fragmentHash is correctly folded into the checksum
Codec is now complete end-to-end (decode + encode) and has the
LoginRequest outbound path proven against its own decoder. The next
commit will wire NetClient over real UDP sockets and connect to the
localhost ACE server.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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| AcDream.slnx | ||
| CLAUDE.md | ||
| 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.