acdream/docs
Erik 0265cc4236 feat(net): N3 - AckNakScheduler, retail 2.0s cumulative ack replaces per-packet acks
Campaign N slice N3. Retail never acks per packet: SharedNet::EnqueuePak
@ 0x00543B10 is the binary's only AckSequence (0x4000) construction site,
gated at >= 2.0 s on ReceiverData::timeStamp_ (@ +0x10), armed at
connection birth by ReceiverData::Init @ 0x00548EF0, and arbitrated
NAK-xor-ack per sweep by ClientNet::ProcessConnection @ 0x00545450
(m_SeqIDsWeNAKed non-empty -> EnqueueNaks, else EnqueuePak;
SharedNet::EnqueueNaks @ 0x00543BD0 shares the SAME timestamp -
campaign landmine #7).

- New Transport/AckNakScheduler: owns the one shared timestamp; a
  non-empty NAK set suppresses the ack (N4 emits RequestRetransmit in
  that branch; in N3 it emits nothing - a documented transitional state,
  safe for exactly one slice on loopback), else ONE cleartext exact-flags
  AckSequence carrying the tracker's HighestIdReceived, header sequence
  borrowed from HighestIdSent without incrementing, 4-byte LE body.
  Flags are an EQUALITY, never an OR (landmine #5 - ACE's dedup
  exemption NetworkSession.cs:342-343 and watermark-skip :474-476 both
  require the exact value).
- ReliableTransport.Sweep pump order per FlowQueue::Empty @ 0x00548A20:
  interval clock, NAK/ack arbitration, pending resends, prune. The sweep
  already runs in Tick and both handshake pump loops (landmine #8), so
  cumulative acks flow during the character-list/enter-world floods at
  ACE's own ~2 s cadence.
- WorldSession: the Phase 4.9 per-packet reflex ack in ProcessDatagram
  and SendAck are DELETED; the [net-tick] acks/s probe now reads
  Stats.AcksSent; new internal TransportClockSource seam drives the
  2.0 s gate on virtual time in the conformance suite.
- N1 Fable-review advisory retired (Time-stamp fold-in): fresh reliable
  sends now stamp Header.Time = the current interval id, matching retail
  FlowQueue::TransmitNewPackets @ 0x00547A60 (header build at
  0x00547A84); resends already re-stamped. ACE never reads inbound
  Header.Time, so the wire stays compatible.

Tests: 723 Core.Net (7 new) - gate cadence + watermark-at-emission,
flags-equality pin + model acceptance at the reused sequence without a
watermark advance, NAK suppression and resume after the gap clears, a
50-packet CreateObject flood collapsing to ONE ack, the quiet-session
keepalive property across a 120 s virtual horizon (the reflex ack's
keepalive role, replaced and proven against ACE's 60 s TimeoutDeadline),
the Time fold-in, and a full FakeAceTransport lifecycle with zero
CRC/state/duplicate drops. Full solution Release: 9,744 passed /
5 skipped / 0 failed. Connected world-lifecycle gate PASS (capped +
uncapped-reconnect, graceful exits, 0 failures); canonical nine-stop
route PASS (0 failures).

Campaign section 9 N3 row updated (complete; SHA recorded at N4
kickoff).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-29 13:51:57 +02:00
..
architecture feat(net): N2 - inbound sequence-aligned ISAAC + NAK set 2026-07-29 13:10:20 +02:00
audit docs: update audit — Sprint 1 items verified (sequence counters + scenery LCG) 2026-04-13 13:51:39 +02:00
plans feat(net): N3 - AckNakScheduler, retail 2.0s cumulative ack replaces per-packet acks 2026-07-29 13:51:57 +02:00
reference docs(reference): preserve local ACE command catalog 2026-07-27 00:03:58 +02:00
reports docs: the overnight consolidation report, open questions first 2026-07-29 03:54:43 +02:00
research feat(core): adopt retail's SoundType catalog; retire AC2D 2026-07-29 07:38:56 +02:00
superpowers fix(world): remove non-retail portal exit fade 2026-07-15 23:20:52 +02:00
bugs.md docs: reconcile project status and navigation 2026-07-20 13:00:41 +02:00
ISSUES.md docs(net): Campaign N - the retail reliable-transport port 2026-07-29 10:30:49 +02:00
README.md docs: reconcile project state and refresh README 2026-07-27 12:53:31 +02:00

acdream documentation map

This page is the entry point for project documentation. It distinguishes current sources of truth from implementation history so an old plan or issue banner cannot silently override the current program state.

Current snapshot — 2026-07-27

  • Milestone state: M3, “Cast a spell,” landed 2026-07-21. M4, “Live in the world,” is active.
  • M4 gameplay program: resume the pre-M4 world-interaction completion program. Favorite-spell overflow, status Use/Assess, and the complete assessment surface are user-accepted. Equipped-child picking and vendor browse/transactions remain Slices 46.
  • Structural/runtime state: all eight GameWindow decomposition slices, Modern Runtime Slices AJ, and the connected visual/lifecycle gates are complete. GameWindow is a 1,622-line composition/callback shell. AcDream.Runtime.GameRuntime owns canonical session, entity/object, gameplay, movement, physics, projectile, environment, and portal state; graphical and no-window hosts borrow the same owner graph.
  • Headless state: Slice K is complete. AcDream.Headless is a presentation-free Windows/Linux host with deterministic commands/events, shared immutable content, multi-session isolation, reconnect, resource telemetry, and 1/5/10/30-session gates. The final two-account native-Linux soak completed ten minutes, logged out through ACE, and converged every ownership ledger.
  • Linux graphical state: Slice L0 and the L1 implementation checkpoint are complete at 66f114b2 and 11501d52. Native Windows passes the active modern-GL/audio/window smoke. WSLg X11/Wayland correctly reject their missing GL_ARB_bindless_texture. Physical-Linux validation and L2L6 are explicitly deferred; resume at the supported AMD/NVIDIA L1 gate.
  • Completed gameplay gates: R6 locomotion/collision/projectile/teleport/ radar, two-client portal-out/materialization, indoor prepared collision, loot ordering, local/remote ground drops, and selection-marker lifetime.
  • Separate visual verification: issue #225, the shared-alpha lifestone/particle result; its connected resource-lifetime and performance routes pass.
  • Carried behaviour debt: issue #153 (far teleport onto an unstreamed edge), #116 (narrowed slide response), #235 (capped/RDP jump cadence), and the active temporary-stopgap rows in the divergence register.
  • Divergence audit: 189 active rows — IA 18, AD 38, AP 91, TS 38, and UN 4 — plus retained struck/retired historical rows such as TS-37.
  • Latest automated baseline: the Release build succeeds with the 17 test-project warnings tracked by issue #228; 8,826 tests pass and five are intentionally skipped. App passes 3,763 / 3 skips. The L1 Windows supported smoke and WSLg X11/Wayland negative-capability reports all end with zero window/GL/input/audio ownership.

Sources of truth

Read these in this order when deciding what to do next:

  1. plans/2026-05-12-milestones.md — the active playable outcome, freeze boundaries, and visual gates.
  2. plans/2026-04-11-roadmap.md — strategic phase ledger: shipped, active, deferred, and future work.
  3. ISSUES.md — tactical defects and small follow-ups. The status inside an issue is authoritative; physical order is not.
  4. architecture/retail-divergence-register.md — every known place runtime behavior can differ from retail.
  5. architecture/acdream-architecture.md and architecture/code-structure.md — ownership, dependency, update-thread, and extraction rules.
  6. architecture/worldbuilder-inventory.md — rendering/DAT code already owned in-tree versus mechanisms still ours to port.

If these disagree, milestones control the current outcome, the roadmap controls work ordering, the issue status controls the individual defect, and the architecture documents control implementation shape. Reconcile the stale document in the same change; do not leave both claims standing.

Research and implementation records

  • research/named-retail/ is the primary retail oracle: named pseudo-C, headers, symbols, and types from the Sept 2013 build.
  • research/decompiled/ is the older Ghidra fallback.
  • research/ contains focused pseudocode, traces, fixtures, and gate reports. A dated research note records evidence; it does not become a new roadmap.
  • superpowers/specs/ and superpowers/plans/ are per-slice design and execution records. Completed plans remain historical.
  • audit/ contains completion and conformance audits.
  • reference/ace-commands.md preserves the local ACE server's complete in-game command catalog and points to the authoritative per-command help surface.

Durable memory

  • ../claude-memory/MEMORY.md indexes the live subsystem memories and the render/physics digests. Read a domain digest before changing that subsystem, especially its DO-NOT-RETRY table.
  • ../memory/ contains stable engineering references such as the modern rendering pipeline, two-tier streaming, and toolchain notes.

Memory accelerates recall; it does not outrank the canonical documents above. When current truth changes, update the relevant canonical document and distill only the durable lesson into memory.

Historical and deprecated documents

  • bugs.md is the April 2026 bug snapshot. It is preserved for archaeology and is not an active ledger.
  • Dated plans and specs describe the decision at that time. Their completion wording is historical unless the current milestone/roadmap explicitly links the item as active.
  • Old R1→R8 architecture sequencing is superseded. Current execution comes from the milestones and strategic roadmap.

Documentation maintenance rules

  • Update milestone, roadmap, issue, divergence, architecture, and memory claims in the same commit when a shipped change affects them.
  • Keep one issue ID per defect. Narrow an issue in place; do not reuse another issue's number as a shorthand.
  • Mark automated, connected, and visual gates separately. An automated pass is not a visual acceptance, and an RDP throughput sample is not a local-display visual comparison.
  • Preserve research history, but remove stale “current/next” claims from living documents once the state advances.