fix(runtime): give the no-window host a post-merge canonical cell commit (D1, AD-60/AD-64, AP-146/#320)

C5b (735f0a72) made the steady-state accepted-Position merge stop writing
residency. That is retail-correct — HandleReceivedPosition @0x00453FD0 reads
the wire objcell_id into a local and never assigns the object's cell — and it
stays. What C5b did not account for is that its replacement writers both live
in AcDream.App: the OnPosition prologue rebucket (AD-60's W2) and the
post-routing wire-cell adopt (W3, AP-135).

The two hosts run parallel, non-shared inbound routes. LiveEntitySessionController
-> LiveEntityNetworkUpdateController.OnPosition is graphical-only;
RuntimeLiveEntitySessionController.OnPositionUpdated is the no-window route and
is constructed only at HeadlessSessionHost.cs:682. So AcDream.Headless had NO
post-merge cell writer at all. Every remote's FullCellId was written at
create/placement and then frozen for the session — and RuntimeEntityObjectViews
.Snapshot projects exactly that field as RuntimeEntitySnapshot.CellId, i.e. every
bot's entire world view. The local player lost one of AP-146's three refresh
edges, which matters beyond cosmetics: RuntimeSetPositionState
.IsAffectedCollisionResident reads FullCellId to pick which bodies a landblock
retirement parks, so a bot running A->B without teleporting would have retired A
while parking a body physically in B.

The fix, in three parts:

1. RuntimeEntityObjectLifetime.CommitWireCellRebucket — a new Runtime owner for
   the committed VALUE, extracted verbatim from LiveEntityRuntime
   .RebucketLiveEntity. This is also the root-cause fix for the layering
   inversion the review found: AD-60 was documenting its own correctness by
   naming an App class the Runtime assembly cannot reference. Behaviour on the
   graphical side is unchanged — record.FullCellId is a proxy for
   record.Canonical.FullCellId, which is the record the callee reads, and the
   commit is still CommitRebucket. Verified load-bearing for BOTH hosts:
   sabotaging the preserve branch reddens the graphical
   LiveEntityRuntimeTests.CanonicalOnlyRebucket_DoesNotOverwriteAuthoritativeFullCell
   as well as the new headless assertion.

2. RuntimeLiveEntitySessionController.TryCommitAcceptedWireCell — the no-window
   W2, under the same reachability rules the graphical route applies: Rejected
   writes nothing (the shape the App authority gate produces by returning false);
   a bound-projectile packet writes nothing (routed by the graphical host through
   the canonical projectile placement owner, which returns before W2); an active
   initial-create residence writes nothing (RebucketLiveEntity's own early
   return — while the lease is live the SetPosition conductor is the sole cell
   authority); a local ForcePosition writes only when the accepted-Position drive
   declined it (NotApplicable), because a handled force is
   placement-receipt-authoritative. W2/W3 themselves are untouched.

3. On the committed value (the landblock-vs-cell trap). RebucketLiveEntity's
   preserve branch fires on a LANDBLOCK-shaped id — low 16 bits 0xFFFF — and
   exists for LocalPlayerProjectionController.Project, the per-frame local
   movement caller that emits exactly that shape. An inbound wire objcell_id is
   never landblock-shaped, so on the accepted-Position route the branch is not
   taken and the exact wire cell is committed. That is what W2 commits today and
   what this now commits; the no-window host has no per-frame caller at all.

Ordering is matched, not improved on: the force drive submits its placement
before the commit, so its first submit still reads the pre-commit FullCellId —
AP-138's amended route-2 CurrentCellId measurement.

Bookkeeping in this commit:
- AD-60 corrected. Its surviving-channel enumeration presented "the local force
  path, the missile arm" as exhaustive; the entire no-window host belonged in it.
  23aa62f2's W2/W3-redundancy measurement is preserved verbatim.
- AP-146 and #320 amended the same way — their three-edge list was written from
  the graphical host and silently assumed both hosts shared it. The no-window
  host had two of three; it now has all three.
- AD-64 filed: the reachability decision is now expressed once per host. The
  value is single-sourced; the gate set is not.
- #324 filed: unifying the two session controllers is the genuinely correct fix
  and is campaign-sized (presentation recovery, hydration, the equipped-child
  renderer, and the remote/projectile routing arms only one host has). Not
  attempted here, per the fix brief.

Gates. Release build 0 errors. Complete suite 11,141 passed / 4 skipped /
0 failed, against the 11,134 / 4 / 0 baseline at 23aa62f2 — net +7, exactly the
7 tests added. Eight sabotages verified, each red on at least one discriminating
test and green when reverted: remote commit removed (2 Runtime + the end-to-end
Headless test); local ordinary commit removed; local NotApplicable-force commit
removed; force commit made unconditional; residence gate removed; missile gate
removed; Rejected gate removed; preserve branch broken (red on both hosts).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-08-05 22:36:31 +02:00
parent 23aa62f292
commit ff100cf33f
8 changed files with 746 additions and 22 deletions

View file

@ -932,17 +932,21 @@ public sealed class LiveEntityRuntime : ILiveEntityRadarSource
bool visible = _spatial.IsLiveEntityProjectionResident(key);
record.IsSpatiallyVisible = visible;
RefreshPresentation(record);
uint committedFullCell =
(spatialCellOrLandblockId & 0xFFFFu) != 0xFFFFu
? spatialCellOrLandblockId
: record.FullCellId;
uint committedLandblock = spatialCellOrLandblockId == 0
? 0u
: (spatialCellOrLandblockId & 0xFFFF0000u) | 0xFFFFu;
if (!_entityObjects.CommitRebucket(
// D1 (C5b architecture review): the committed-value derivation that
// used to be inline here — the landblock-shaped-id preserve branch
// and the canonical-landblock mask — moved VERBATIM into
// RuntimeEntityObjectLifetime.CommitWireCellRebucket so the
// no-window host can commit the same value from its own route
// instead of having no post-merge cell writer at all. Behaviour is
// unchanged: `record.FullCellId` is a proxy for
// `record.Canonical.FullCellId` (see this class's own property),
// which is the record the callee reads, and the commit itself is
// still CommitRebucket. AP-146/#320's "LiveEntityRuntime.cs:935-938
// preserves the prior canonical cell" citation now resolves to that
// method.
if (!_entityObjects.CommitWireCellRebucket(
record.Canonical,
committedFullCell,
committedLandblock))
spatialCellOrLandblockId))
{
ThrowAfterCommittedProjectionChange(
serverGuid,

View file

@ -1943,15 +1943,28 @@ public sealed class RuntimeEntityObjectLifetime : IDisposable
// The snapshot's Position field itself IS still refreshed; only the
// derived FullCellId write is withheld.
//
// Two wire-cell writers deliberately SURVIVE this change, downstream
// of the merge and outside the classification window: the OnPosition
// prologue rebucket (LiveEntityNetworkUpdateController ->
// LiveEntityRuntime.RebucketLiveEntity -> CommitRebucket, which is
// also the local player's own cell-freshness path, AP-146/#320) and
// the post-routing wire-cell adopt for non-placing arms
// (TryAdoptWireCellAfterRouting, filed at AP-135). Neither is gated
// here: gating the prologue rebucket would freeze the local player's
// Wire-cell writers deliberately SURVIVE this change, downstream of
// the merge and outside the classification window. The canonical one
// is CommitWireCellRebucket, in this class: BOTH inbound routes call
// it after the merge, and it is also the local player's own
// cell-freshness path (AP-146/#320). Neither route gates it here:
// gating the prologue rebucket would freeze the local player's
// canonical cell between teleports.
//
// CORRECTED 2026-08-05 at the C5b architecture review (D1). This
// comment used to enumerate the survivors as two App classes —
// LiveEntityNetworkUpdateController -> LiveEntityRuntime and
// TryAdoptWireCellAfterRouting (AP-135) — which was both a layering
// inversion (a Runtime file documenting its own correctness by
// naming classes this assembly cannot reference) and, worse, WRONG:
// it described the graphical host as though it were the only host.
// The no-window route (RuntimeLiveEntitySessionController) had
// neither writer, so it had no post-merge cell writer at all and
// every entity's FullCellId froze at its placement value for the
// session. The graphical route's post-routing adopt still exists and
// is still filed at AP-135; the no-window route has no remote
// contact routing and therefore no analogue of it. AD-60 and AD-64
// carry the complete channel list.
Entities.RefreshSnapshot(
canonical,
snapshot,
@ -2028,6 +2041,72 @@ public sealed class RuntimeEntityObjectLifetime : IDisposable
() => canonical.SpatialAuthorityVersion == spatialVersion);
}
/// <summary>
/// D1 (C5b architecture review): the CANONICAL half of the wire-cell
/// rebucket (AD-60's W2), expressed once, in Runtime, for every host.
///
/// <para>
/// <b>Why this exists.</b> C5b made the steady-state merge stop writing
/// residency (<c>RefreshSnapshot(..., refreshPosition: false)</c> in
/// <see cref="TryApplyPosition"/>) and left the graphical
/// <c>OnPosition</c> prologue rebucket
/// (<c>LiveEntityNetworkUpdateController</c> →
/// <c>LiveEntityRuntime.RebucketLiveEntity</c>) as the replacement
/// writer. That writer lives in <c>AcDream.App</c>, so the no-window
/// host had NO post-merge cell writer at all: a headless remote's
/// <see cref="RuntimeEntityRecord.FullCellId"/> was written at
/// create/placement and then frozen for the session, and the local
/// player lost one of AP-146's three refresh edges. The derivation was
/// also the reason AD-60 documented itself by naming an App class this
/// assembly cannot reference — a layering inversion. Both are fixed by
/// owning the rule here and letting each host's route call it.
/// </para>
///
/// <para>
/// <b>The landblock-vs-cell rule (verbatim from the graphical site it
/// was extracted from).</b> <paramref name="spatialCellOrLandblockId"/>
/// is overloaded. A LANDBLOCK-shaped id — low 16 bits <c>0xFFFF</c>,
/// which is what <c>LocalPlayerProjectionController.Project</c> emits
/// for ordinary per-frame movement — deliberately PRESERVES the exact
/// cell and updates only the canonical landblock; writing the coarser
/// value would destroy a resolved EnvCell. Any other id is an exact
/// cell and is committed as-is. An inbound wire <c>objcell_id</c> is
/// always cell-shaped (ACE never sends <c>0xFFFF</c> in the low half),
/// so on the accepted-Position route this always commits the exact wire
/// cell — the preserve branch is there for the per-frame local caller,
/// which no-window hosts do not have. <c>0</c> is passed through
/// unchanged (cell 0 + landblock 0), the withdrawal shape.
/// </para>
///
/// <para>
/// This method deliberately carries NO gates. Which packets may reach a
/// wire-cell commit is the caller's decision and differs per host route
/// (the graphical route returns ahead of it for the local force arm,
/// the missile arm, and an active initial-create residence); duplicating
/// those tests here would double-gate one host and silently widen the
/// other.
/// </para>
/// </summary>
public bool CommitWireCellRebucket(
RuntimeEntityRecord canonical,
uint spatialCellOrLandblockId,
Action<RuntimeEntityRecord>? acknowledgeProjection = null)
{
ArgumentNullException.ThrowIfNull(canonical);
uint committedFullCell =
(spatialCellOrLandblockId & 0xFFFFu) != 0xFFFFu
? spatialCellOrLandblockId
: canonical.FullCellId;
uint committedLandblock = spatialCellOrLandblockId == 0
? 0u
: (spatialCellOrLandblockId & 0xFFFF0000u) | 0xFFFFu;
return CommitRebucket(
canonical,
committedFullCell,
committedLandblock,
acknowledgeProjection);
}
public bool CommitWithdrawal(
RuntimeEntityRecord canonical,
Action<RuntimeEntityRecord>? acknowledgeProjection = null)

View file

@ -237,9 +237,26 @@ public sealed class RuntimeLiveEntitySessionController
out _,
out AcceptedPhysicsTimestamps timestamps);
if (!known
|| !isLocal
|| disposition is PositionTimestampDisposition.Rejected)
{
// Rejected writes nothing anywhere — the same shape the
// graphical authority gate produces by returning false from
// LiveEntityInboundAuthorityGate.TryAcceptPosition, which is
// ahead of every wire-cell writer.
return;
}
if (!isLocal)
{
// D1 (C5b architecture review): the no-window host's half of
// AD-60's W2. The graphical route commits the accepted wire
// cell for EVERY classification that reaches its generic tail,
// remotes included; this route used to return here, so a
// headless remote's FullCellId was written once at
// create/placement and then frozen for the whole session —
// and RuntimeEntityObjectViews.Snapshot feeds exactly that
// field to every bot's RuntimeEntitySnapshot.CellId.
TryCommitAcceptedWireCell(update);
return;
}
@ -307,6 +324,20 @@ public sealed class RuntimeLiveEntitySessionController
// fallback this disposition always had — it must still
// run, exactly as every other disposition's fallback
// does below.
//
// D1: ... and so does the wire-cell commit. A force the
// drive HANDLED (Committed/DeferredCell) is
// placement-receipt-authoritative for residency, and a
// Rejected/Contention force leaves the last committed
// cell alone (AD-62's shapes) — both are exactly why
// the graphical route returns ahead of W2 on every
// status except NotApplicable. Ordering matters as well
// as reachability: the drive submits its placement
// BEFORE this point, so its first submit reads the
// pre-commit FullCellId, which is the source landblock
// — AP-138's amended route-2 measurement, matched here
// rather than accidentally improved on.
TryCommitAcceptedWireCell(update);
_worldProjection?.ProjectPosition(
record,
isLocalPlayer: true,
@ -315,6 +346,7 @@ public sealed class RuntimeLiveEntitySessionController
}
else
{
TryCommitAcceptedWireCell(update);
_worldProjection?.ProjectPosition(
record,
isLocalPlayer: true,
@ -324,6 +356,63 @@ public sealed class RuntimeLiveEntitySessionController
TryCompletePortal();
}
/// <summary>
/// D1 (C5b architecture review): commits the accepted wire cell to
/// canonical residency for a no-window host, under the same
/// reachability rules the graphical <c>OnPosition</c> route applies to
/// AD-60's W2. The committed VALUE is
/// <see cref="RuntimeEntityObjectLifetime.CommitWireCellRebucket"/>'s —
/// one rule, shared by both hosts, including its landblock-vs-cell
/// branch.
///
/// <para>
/// Two gates mirror callers the graphical route has and this one does
/// not. <b>The initial-create residence</b> is
/// <c>LiveEntityRuntime.RebucketLiveEntity</c>'s own early return
/// (<c>MaterializationResidence is AwaitRuntimePlacement &amp;&amp;
/// HasActiveInitialCreateResidence</c>): while the lease is live,
/// Runtime's <c>SetPosition</c> conductor is the sole cell authority.
/// Only the residence half is tested here, because it IS the whole
/// test on this side — the App enum's <c>AwaitRuntimePlacement</c> value
/// exists to mark records that took the residence route, which is every
/// record a projection-backed direct host registers, and a content-less
/// direct host opens no lease at all
/// (<see cref="OnSpawned"/>). <b>A missile packet</b> is routed by the
/// graphical host through the canonical projectile placement owner and
/// returns before W2; the predicate below is the exact conjunction that
/// route's own null-classification arm uses
/// (<c>LiveEntityNetworkUpdateController.OnPosition</c>, the
/// <c>isMissilePacket</c> ternary), which its D-P1 comment records as
/// equivalent to the classifier's <c>ProjectileAuthoritative</c>
/// operation kind. Committing a wire cell for a projectile here would
/// invent residency a placement route owns.
/// </para>
/// </summary>
private void TryCommitAcceptedWireCell(
WorldSession.EntityPositionUpdate update)
{
if (!Entities.Entities.TryGetActive(
update.Guid,
out RuntimeEntityRecord canonical)
|| Entities.TryGetInitialCreateResidence(canonical, out _)
|| IsMissilePacket(canonical, update.Guid))
{
return;
}
_ = Entities.CommitWireCellRebucket(
canonical,
update.Position.LandblockId);
}
private bool IsMissilePacket(
RuntimeEntityRecord canonical,
uint guid) =>
guid != _runtime.PlayerIdentity.ServerGuid
&& (canonical.FinalPhysicsState & PhysicsStateFlags.Missile) != 0
&& canonical.Projectile is { } projectile
&& ReferenceEquals(canonical.PhysicsBody, projectile.Body);
private void OnVectorUpdated(VectorUpdate.Parsed update) =>
_ = Entities.TryApplyVector(
update,