Commit Graph
2 Commits
Author SHA1 Message Date
arcattackandClaude Opus 5 4fa7eee54f K/D scoreboard ROOT-CAUSED for real (#45): the kill credit was rerouted, not lost
Kills/deaths only ever appeared on ONE machine.  The cause is not a missing
tally -- it is Entity::Dispatch:

    if (GetInstance() == ReplicantInstance)              // ENTITY.cpp:244-251
        application->SendMessage(ownerID, EntityManagerClientID, message);

BTPostKillScore runs on the VICTIM's node (the only node whose mech carries a
populated lastInflictingID), resolves the killer's Player -- a REPLICANT there --
and Dispatch()es to it.  The engine reroutes that to the owning host, so
++killCount lands on the killer's own PC and nowhere else, and nothing carried it
back out: Player__UpdateRecord is currentScore + dropZoneLocation only.  Every
other pod's copy therefore read 0 all mission.  playerLink was never NULL for
these kills -- the dispatch proves it resolved.

Field proof over the whole corpus (255 node-logs): 125 of 125 SCORE type=2 rows
credit the LOGGING node's own player, not one credits a remote pilot; and 0 of
8800 DMG rows target a replicant, so no other node can even know the killer.

This means the owner's counter is already the single authoritative copy,
incremented exactly once per kill.  So the "design decision" the plan was blocked
on collapses: there is no second writer to reconcile, only a one-way
owner->replicant mirror to add.

  * BTPlayer__UpdateRecord = Player::UpdateRecord + killTally + deathTally, with
    Read/WriteUpdateRecord overrides.  No new data member, no new virtual ->
    sizeof(BTPlayer)==0x28c and every existing offset lock still holds.
  * Both counter writes already ForceUpdate() (:508 death, :829/:840 score), so
    no dirty-bit edit was needed (plan risk 6 avoided).
  * recordLength guard in ReadUpdateRecord: a pod on a build without the
    extension degrades to "remote counters don't move" instead of reading a
    neighbouring record as a kill count.
  * Size locks added per plan risk 2 (no false offsetof assert).

Rig-verified, 2-node loopback (scratchpad/rig45_up.ps1, BT_MP_FORCE_DMG):
owner 3:1 finished kills 3/deaths 2 and the peer read kills=3 deaths=2; owner 2:1
finished kills 2/deaths 3 and the peer read kills=2 deaths=3.  Exact convergence
where a remote column previously never left 0.  3 respawns per side with intact
death sequences (deathCount is only overwritten on replicant copies; the
handshake runs on masters), no crash, no GLITCH rows.

Kept byte-faithful: the kill handler's partner increment (the binary's
inc [ebx+0x27c] / inc [edx+0x27c] wrong-column slip) is still reproduced.  It
always lands on a replicant copy, so the owner's record now overwrites it -- the
rig caught the correction repeatedly (wasKills=3 -> kills=2).  The phantom kill
stops being visible without silently deciding the fidelity question.

Still open and deliberately untouched: which field the LOCAL pod's DEATHS column
should read (+0x280 vs deathCount), last-hitter-takes-all/ram kills, and the
slip's fidelity.  Awaiting live multi-pod verification by a human.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-25 21:40:59 -05:00
arcattackandClaude Opus 5 5174c638ce K/D scoreboard ROOT-CAUSED (#45) + respawn latch fix (#57) + plate stage ops (#58)
FIXES (compile clean; exe link pending -- a game client still holds btl4.exe):

#57 respawn latch: deathPending was released in ONE place (btplayer.cpp:343) and
only if a LATER re-post happened to find the mech alive -- so if the +5s re-post
landed before the drop-zone reply, or never arrived, the flag stayed set while
the pilot respawned and fought on, and their NEXT death hit the dedup at :391
and was swallowed whole (no warp, no tally, no hunt) for the rest of the
process.  Tonight 3 of 3 deaths in the final round were swallowed, each by a
player who had respawned successfully earlier in the same process.  Clear moved
to the actual completion point (after Mech::Reset at the drop zone) + the four
abandon paths that also stranded it.  Cycle logging promoted to always-on
(START / RESET / SWALLOWED warning) + a RESPAWN matchlog record.

#58 reticle callsign plate drew as a SOLID RECTANGLE on some maps: my
dpl2d_DrawTexturedRect bound a texture but never set COLOROP/ALPHAOP, and
L4D3D.cpp:1085 sets both to SELECTARG1 from TFACTOR (ignores the texture, fills
with a constant).  Which state was live depended on what the 3D pass drew last
-- hence 'depends on the level'.  Now sets MODULATE texture x diffuse for both
channels and restores.  Latent sibling noted (CameraHUDDrawQuad, same omission).

ROOT-CAUSE DOC (no code): docs/KD_SCOREBOARD_PLAN.md.  Headlines:
 - the port reads DEATHS from the WRONG FIELD: the binary's PilotList draws
   +0x27c/+0x280; we labelled +0x280 'pad_0x280', never write it, and
   substituted the engine's Player::deathCount (+0x200, the respawn identity
   number seeded to -2) -> remote rows read a clamped fake 0 by construction;
 - BTPlayer::VehicleDeadMessageHandler @0x4c05c4 is MISSING from our decomp
   export (functions_index.tsv jumps 4c052c -> 4c083c, verified) -- that silence
   is what produced the 'pad' belief.  An absent function is not evidence of an
   absent behaviour;
 - neither counter rides an update record, so divergence never self-heals and
   bystanders show 0/0 all mission;  BTPlayerCountObservedDeath is unreachable
   dead code;
 - 'a kill I didn't earn' = last-hitter-takes-all via lastInflictingID, and
   COLLISIONS count (5 of 47 deaths had a type=0 killing blow);
 - the phantom kill is authentic 1995 (the kill handler bumps the victim's
   killCount too);
 - btplayer.cpp:453 does simulationFlags |= 0x1 where the binary does
   ForceUpdate() -- bit 0 is DelayWatchersFlag and nothing clears it, so the
   first death of any pilot permanently disables ExecuteWatchers on that
   player's simulation.  Filing separately.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0166KTsC7ADm7VXEi1HF1jNg
2026-07-25 01:50:07 -05:00