Retires divergences flagged in the 2026-05-16 faithfulness audit:
1. AP cadence. Replaces the 1 Hz idle / 10 Hz active flat heartbeat
with a diff-driven model gated on `Contact && OnWalkable`
(acclient_2013_pseudo_c.txt:700327 SendPositionEvent). Sends on
position or cell change while grounded on walkable, plus a 1 sec
heartbeat; suppressed entirely airborne. PlayerMovementController
exposes `NotePositionSent(pos, cellId, now)` which GameWindow stamps
after each AutonomousPosition / MoveToState send — mirrors retail's
shared `last_sent_position_time` between SendPositionEvent
(0x006b4770) and SendMovementEvent (0x006b4680). Known divergence
from retail: ours is per-frame-while-moving, retail's effective rate
is ~1 Hz during smooth motion (cell/plane checks). Filed as #74,
blocked by #63 — when #63 lands we revert to retail's narrower gate.
2. Workaround retirement. Removes TinyMargin (0.05 m inside arrival)
and the AP-flush before re-send (`SendAutonomousPositionNow`). The
diff-driven cadence makes both obsolete. Close-range turn-first
deferred Use is kept (it IS retail — ACE Player_Move.cs:66-87
mirrors retail's CreateMoveToChain pre-callback rotation), renamed
`OnAutoWalkArrivedSendDeferredAction` to clarify it's a FIRST send.
`isRetryAfterArrival` parameter dropped.
3. Far-range Use/PickUp retry. Restored — was load-bearing, not the
"redundant cleanup" the Group 2 audit thought. Issue #63 means ACE
drops the first Use as too-far without re-polling on subsequent APs;
the arrival re-send is what makes far-range Use complete. Logs
include `(queued for arrival re-send pending #63)` to make this
explicit. Removes when #63 closes.
4. Screen-rect picker. New `AcDream.Core.Selection.ScreenProjection`
helper shared by `WorldPicker` and `TargetIndicatorPanel`. The
`Setup.SelectionSphere` projects to a screen-space square (retail
anchor `SmartBox::GetObjectBoundingBox` 0x00452e20); picker
hit-tests the mouse pixel against the same rect the indicator draws,
inflated by 8 px (`TriangleSize`). Guarantees what-you-see is
what-you-click — including rect corners that were dead zones under
the old ray-sphere picker. Per-type radius (1.0/1.6/2.0 m) and
vertical-offset (0.2/0.9/1.0/1.5 m) heuristic lambdas retired;
`IsTallSceneryGuid` deleted; `EntityHeightFor` trimmed to 1.5 m × scale
defensive default. No defensive sphere synth — entities without a
baked `SelectionSphere` are skipped, matching retail's
`GfxObjUnderSelectionRay` (0x0054c740).
5. Rotation rate run multiplier (Commit A precursor). `TurnRateFor(running)`
helper applies retail's `run_turn_factor = 1.5f` (PDB-named
0x007c8914) under HoldKey.Run, matching `apply_run_to_command` at
0x00527be0 (line 305098). Effective: walking ≈ 90°/s, running ≈ 135°/s.
Keyboard A/D + ApplyAutoWalkOverlay both use it.
6. Useability gate (Commit A precursor). `IsUseableTarget` corrected to
`useability != 0` per `ItemUses::IsUseable` at 256455 — ANY non-zero
passes (USEABLE_NO=1, USEABLE_CONTAINED=8, etc.), not just the
USEABLE_REMOTE bit. Cross-checked against 4 call sites in retail
(ItemHolder::UseObject 0x00588a80, DetermineUseResult 0x402697,
UsingItem 0x367638, disable-button-state 0x198826). Added
`ProbeUseabilityFallbackEnabled` diagnostic
(`ACDREAM_PROBE_USEABILITY_FALLBACK=1`) to measure how often the
creature/BF_DOOR fallback fires for ACE-seed-DB entities with
null useability.
CLAUDE.md updated with the graceful-shutdown rule for relaunch:
Stop-Process bypasses the logout packet, leaving ACE's session marked
logged-in for ~3+ min. CloseMainWindow() sends WM_CLOSE so the
shutdown hook runs and the logout packet reaches ACE.
Tests: +3 ScreenProjectionTests + 6 WorldPickerRectOverloadTests = +9.
Core.Net 294/294 pass; Core 1073/1081 (8 pre-existing Physics failures
unchanged). Visual-verified 2026-05-16: rotation rate, useability,
screen-rect click area, double-click + R-key + F-key Use/PickUp at
short and long range — dialogue/door/pickup fire on arrival.
Filed follow-ups #70 (triangle apex/size DAT sprite), #71 (picker
Stage B polygon refine), #72 (cdb omega.z probe), #73 (retail-message
sweep pattern), #74 (per-frame AP chattier than retail — blocked by
#63). Old ray-sphere `WorldPicker.Pick(origin, direction, ...)`
overload kept for back-compat; no callers in acdream proper.
Plan: docs/superpowers/plans/2026-05-16-retail-faithfulness-fixes.md
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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