acdream/docs/architecture
Erik bf66fb4123 fix(streaming): #138 — re-hydrate server objects from the retained spawn table on reload
Doors/NPCs/portals vanished after a portal OUT of the 0x0007 dungeon back
to Holtburg. Root cause confirmed via ACE + holtburger cross-reference:
the dungeon collapse drops a landblock's render entities for FPS, and ACE
will NOT re-broadcast objects whose guid is still in its per-player
KnownObjects set (never cleared on a normal teleport — ACE relies on the
client retaining its object table and culling stale objects itself). So
nothing restored them on the way back.

Retail-faithful fix: a real client keeps its weenie_object_table and
re-renders the world from it (holtburger keeps the table across a
teleport; only suspends physics bodies). acdream's _lastSpawnByGuid (the
parsed CreateObject records — position + Setup + appearance) IS that
table and survives the collapse (the collapse path never calls
RemoveLiveEntityByServerGuid, the only thing that prunes it). On landblock
(re)load, replay OnLiveEntitySpawnedLocked for retained spawns whose
render entity is absent — independent of any ACE re-send.

- LandblockEntityRehydrator: pure selection (landblock match; skip
  already-present, the player, and mesh-less spawns), unit-tested (7).
- StreamingController: onLandblockLoaded callback after AddLandblock
  (Loaded = dungeon-exit expand) and AddEntitiesToExistingLandblock
  (Promoted = Far->Near).
- GameWindow.RehydrateServerEntitiesForLandblock: present-gate keys on
  GpuWorldState (NOT _entitiesByServerGuid, which holds collapse
  orphans), replay under _datLock; the replay's own
  RemoveLiveEntityByServerGuid de-dup scrubs the orphan state.

Corrects the handoff: ClientObjectTable is inventory-only (no world
position/Setup) and cannot rebuild a render entity; _lastSpawnByGuid is
the world-object table. Register row AP-48 (no retail 25s visibility
cull). dotnet build + 1518 Core tests green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-21 08:06:41 +02:00
..
acdream-architecture.md docs: render-pipeline SSOT section + #78 reset pointer (redo of edits that silently failed) 2026-05-31 21:50:07 +02:00
code-structure.md refactor(app): extract typed RuntimeOptions for startup env vars (Step 1) 2026-05-17 09:16:55 +02:00
retail-divergence-register.md fix(streaming): #138 — re-hydrate server objects from the retained spawn table on reload 2026-06-21 08:06:41 +02:00
worldbuilder-inventory.md ship(O): Phase O — DatPath Unification — SHIPPED 2026-05-21 17:41:15 +02:00