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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 14569558fb refactor(physics): wire PhysicsBody + MotionInterpreter into PlayerMovementController 
Replace the ad-hoc movement simulation with the ported retail physics:

- PlayerMovementController now owns a PhysicsBody (gravity, friction, Euler
  integration with sub-stepping) and a MotionInterpreter (motion state machine,
  speed constants from retail dat).

- Orientation quaternion is synced from Yaw each frame (Yaw=0 → +X, matching
  the cos/sin convention the camera and outbound messages expect).

- Horizontal velocity is composed from MotionInterpreter.get_state_velocity()
  speeds (WalkAnimSpeed=3.12, RunAnimSpeed=4.0, SidestepAnimSpeed=1.25 from
  decompiled globals) then pushed via PhysicsBody.set_local_velocity so the
  orientation quaternion rotates them into world space correctly.

- Vertical velocity (gravity / jump / fall) is snapshot before DoMotion calls
  so apply_current_movement's set_local_velocity(0,0,0) can't clobber it.

- Jump delegates to MotionInterpreter.jump() + LeaveGround() which calls
  get_leave_ground_velocity() → DefaultJumpVz=10.0 (retail value).

- PhysicsEngine.Resolve is still called each frame with zero delta to sample
  terrain/cell Z under the body and set Contact+OnWalkable accordingly.

- Drive UpdatePhysicsInternal(dt) directly instead of update_object(wallClock)
  to avoid the MinQuantum (~33ms) guard that would silently drop 60fps frames.

Test update: jump loop extended from 30→50 frames to cover the longer flight
time from retail DefaultJumpVz=10 (≈2.04s) vs old JumpImpulse=5 (≈1.02s).

303 tests green.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-13 00:08:02 +02:00
docs research: complete acclient.exe function map — 70+ identified functions 2026-04-12 23:46:22 +02:00
src refactor(physics): wire PhysicsBody + MotionInterpreter into PlayerMovementController 2026-04-13 00:08:02 +02:00
tests refactor(physics): wire PhysicsBody + MotionInterpreter into PlayerMovementController 2026-04-13 00:08:02 +02:00
tools feat(core): port decompiled AC client physics — CollisionPrimitives + PhysicsBody 2026-04-12 23:54:51 +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.md): consolidated reference hierarchy + never-guess policy 2026-04-12 22:42:04 +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.