Erik d71ceaba9c docs(phys): design spec — per-part BSP collision for server-spawned entities ... Captures the brainstorm session 2026-05-24 evening after A6.P4 slice 1 (b49ed90) shipped without closing #99. Investigation surfaced the actual root cause: doors register as a single 14cm × 20cm bounding-cylinder approximation derived from Setup.Radius/Height fallback. Their real collision-bearing geometry lives in per-part GfxObj BSPs (3 parts for Setup 0x020019FF), including the threshold polygon spanning the doorway. Retail-faithful design: every server-spawned entity registers N shadow entries (one per CylSphere + one per Sphere + one per Part-with-BSP), all sharing the same EntityId. UpdatePhysicsState propagates ETHEREAL flips to all entries via the existing EntityId-iteration path. Unifies the live-entity and landblock-static registration code paths under one ShadowShapeBuilder. Retail anchor: CObjCell::find_obj_collisions → CPhysicsObj::FindObjCollisions → CPartArray::FindObjCollisions → CPhysicsPart::find_obj_collisions → CGfxObj::find_obj_collisions. One PhysicsObj per entity, parts iterated internally for collision (acclient_2013_pseudo_c.txt:276776-275055). Five-commit migration sequence; tests at three layers (builder unit tests, registry behavior tests, live-capture regression pin). Approach A approved by user 2026-05-24. Spec stands on its own as M1.5 work; not formally assigned a phase letter per CLAUDE.md's "don't invent phase numbers on the fly" rule. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>		2026-05-24 14:21:07 +02:00
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architecture	ship(O): Phase O — DatPath Unification — SHIPPED	2026-05-21 17:41:15 +02:00
audit	docs: update audit — Sprint 1 items verified (sequence counters + scenery LCG)	2026-04-13 13:51:39 +02:00
plans	ship(phys): A6.P3 slice 3 — cell-resolver ping-pong CLOSED + #98 re-diagnosed	2026-05-22 12:11:56 +02:00
research	docs(handoff): A6.P4 pickup handoff — full session-resume artifact	2026-05-24 07:32:58 +02:00
superpowers	docs(phys): design spec — per-part BSP collision for server-spawned entities	2026-05-24 14:21:07 +02:00
bugs.md	docs: update bugs.md — close BUG-002/003/004, add BUG-005/006/007	2026-04-14 12:17:31 +02:00
ISSUES.md	docs: A6.P3 #98 resolution + A6.P4 design + #99/#100 filed	2026-05-24 07:23:49 +02:00