B.4b visual test confirmed the L.2g slice 1 handoff's open question:
ACE's Door.Open() broadcasts state=0x0001000C (HasPhysicsBSP |
Ethereal | ReportCollisions), NOT the state=0x14+ that retail servers
send (Ethereal | IgnoreCollisions). The L.2g pipeline correctly
mutates ShadowObjectRegistry with the new state, but
CollisionExemption.ShouldSkip required both bits and the door stayed
solid.
Retail (acclient_2013_pseudo_c.txt:276782) wraps FindObjCollisions in
`if NOT (state & ETHEREAL && state & IGNORE_COLLISIONS)`. ETHEREAL
alone takes a different retail path at line 276795 that sets
sphere_path.obstruction_ethereal = 1 and lets downstream movement
allow passage despite the contact. We haven't ported that downstream
path yet.
Pragmatic shortcut: widen the early-out to ETHEREAL alone so doors
become passable when ACE flips the bit. Retail-server broadcasts
still hit the same branch correctly (both bits set implies ETHEREAL).
Compatible with both server styles.
Renames test EtherealOnly_NotSkipped -> EtherealOnly_Skipped and
flips its assertion. 13 CollisionExemption tests pass; full suite
1046 pass / 8 pre-existing baseline fail (unchanged).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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