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feat(L.2g-S2a): CMotionInterp inbound funnel in Core + live-retail conformance harness (DEV-1 core)

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Port the inbound funnel verbatim into MotionInterpreter:
- MoveToInterpretedState (0x005289c0): raw-state style adopt, FLAT
  copy_movement_from overwrite, apply, then action replay under the
  15-bit server_action_stamp wraparound gate (local player skips its
  own autonomous echoes).
- ApplyInterpretedMovement (0x00528600): my_run_rate cache from
  RunForward speed, then retail dispatch order style -> forward-or-
  Falling -> sidestep(-stop) -> turn(-stop), turn early-return.
- DispatchInterpretedMotion (0x00528360): contact-gated sink dispatch
  (IInterpretedMotionSink = the GetObjectSequence backend the App
  implements); blocked non-action motions take the apply-only path —
  retail's real mechanism behind K-fix17's 'airborne remotes keep
  their cycle' empirical guard.
- contact_allows_move REWRITTEN VERBATIM from the real 0x00528240
  (pseudo-C 305471): Falling/0x40000011 + turns always allowed,
  non-creature weenies + no-gravity bypass, else Contact+OnWalkable.
  The previous body conflated jump_charge_is_allowed (0x00527a50)
  posture checks — the 2026-06-04 deep-dive divergence, now retired.
  Six tests that pinned the misattributed behavior corrected
  (grounded posture does NOT block motion; airborne accepts
  Falling/turns only).
- IWeenieObject.IsCreature (default true) for the gate's non-creature
  bypass.

Conformance harness (the user-requested 'prove it equals retail'
apparatus, layer 1): RetailObserverTraceConformanceTests parses the
LIVE cdb trace of a retail observer (Fixtures/l2g-observer-trace.log,
captured via tools/cdb/l2g-observer.cdb) into 183 golden cases —
each [MTIS] input state replayed through our funnel must produce
retail's exact [DIM] dispatch sequence. 183/183 conformant, including
the airborne jump case (replayed contact-free; pre-gate vs post-gate
accounting + HitGround second-pass truncation documented in-test).
13 synthetic funnel tests cover the branches the trace missed
(actions, stamps, longjump, sidestep).

GameWindow integration (S2b) follows; funnel not yet wired.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-07-02 18:50:09 +02:00
parent 97e098bf91
commit 7b0cbbda2c
6 changed files with 3693 additions and 55 deletions
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