NPCs / monsters / other players now register into ShadowObjectRegistry
as collision targets. The local player walks into them and stops at
the body cylinder, instead of passing through.
GameWindow.OnLiveEntitySpawnedLocked: after the WorldEntity is built
and stored in `_entitiesByServerGuid`, call the new
RegisterLiveEntityCollision helper for any non-self entity. The helper
honors retail's geometry-priority order (acclient_2013_pseudo_c.txt:
276858-276987) — CylSpheres > Setup.Radius > Sphere fallback — and
applies the retail phantom-Setup skip (no CylSpheres / no Spheres /
zero Radius → walk-through, matching FUN_FindObjCollisions's OK_TS
fallthrough at :276917).
GameWindow.OnLivePositionUpdated: after the entity's render pos/rot
are set to server truth, push the same coordinates into the registry
via ShadowObjectRegistry.UpdatePosition (the cheap
preserve-shape-and-flags path Commit A added). Mirrors retail's
SetPosition → change_cell → AddShadowObject chain (
acclient_2013_pseudo_c.txt:284276 / 281200 / 282862).
The local player's own server guid is filtered out at both
registration and update — its PhysicsBody is the simulator (the
source of truth for our collisions), not a collision target.
The decoded EntityCollisionFlags + raw PhysicsState bits are stored
on each ShadowEntry but NOT YET CONSULTED by the collision resolver
— Commit C is where the PvP exemption block lands. Practical effect
of THIS commit: every visible body, including non-PK other players,
blocks the local player. Two non-PK players currently can't pass
through each other; that's the rule Commit C reverts to retail.
No new unit tests in this commit (Commit A's ShadowObjectRegistry +
EntityCollisionFlags suite covers the new field plumbing).
Verification is live: at Holtburg the +Acdream test character should
stop on contact with NPCs / vendors. Phantom decorations (small
plants, grass) continue to pass through (L-fix3 phantom skip
extends naturally to the live path via the same Setup-shape gate).
dotnet build green, dotnet test 1454 passing.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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