08ca66e5b5c51dd5ebef590303e06e83eecdc597
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Commits
| Author | SHA1 | Message | Date | |
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 Joe DiPrimaandClaude Fable 5
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9c83a468db |
#82 ROOT FIX: reconstruct the crash SELF-DAMAGE -- wall-grinding now hurts,
the knockdown storm self-limits, peers keep the limp
The 'peers see a limping mech skating' report decomposed into a wall-grind
KNOCKDOWN STORM: a gimped mech held against a blocking solid re-crashes each
time its gg cycle rebuilds speed (the gg ceiling is authentically the clip's
natural speed -- bhk1 ~14.9 u/s, ceiling+divisor @0x544/0x548, loader formula
byte-matched -- so iv2 ~222 >> the 40.0 threshold @0x4ab184), and every
type-5 KNOCKDOWN broadcast floors all peers' replicants into knockdown/trn
churn: gliding + leg-lifts = skating. Turning and crushable cars were
A/B-exonerated (grass circling: 198 replicant gimp entries, 17 crunches,
zero broadcasts).
What the binary has that the port lacked -- recovered from the EXPORT GAP by
raw disasm (scratchpad/night6/gap_4a9770.txt, @4aa89f-4aaab4) -- is the crash
branch's tail: fallDirection = worldToLocal(damageForce) (FUN_0040879c, M^T v,
un-normalized), fallScalar = -(fallDirection . localVelocity.linearMotion),
and a self-dispatched TakeDamageMessage{0x64, zone=-1, the engine-computed
collision Damage verbatim}. A wall crash COSTS ARMOR, so the grind degrades
the mech instead of looping forever. That dispatch was the long-standing
'DEFERRED' note in the response policy; now reconstructed.
Falsified en route (comments + KB corrected, do not revive): the stagger's
FUN_004a4c54(1)/(0x20) 'action-request flags' feed NO drive suppressor --
image-wide sweep + full gap disasm show word[this+0x18] is read only by the
net record emitter; the bmp clip applies NO root motion (adv=0 measured); the
'gimp cap 5.8' figure was the BACK-cycle stride printed under a misleading
label (now ggCapL/R; @0x52c has no binary consumer).
Verified (mp_gimpAB rigs): arena1 wall-grind now 4 bounded strikes, limper
dies of its crashes and respawns cleanly twice (START->RESET, no strand);
grass circling unchanged-clean (198 replicant gimp states, 0 knocks).
Rig: pid capture race fixed (a missed winpid left a stale node holding the
-net port -> null runs), per-config sweep added.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Joe DiPrimaandClaude Fable 5
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bfa1b04990 |
#81 follow-ups: peer warp must not stomp the POV vortex; panel draw probe; mech3 ghost symbols
Two field observations from watching the 4-node stress, both run down: 1. "A respawn happened without the blue vortex" -- REAL. The translocation effect is ONE global slot shared by the POV lifecycle and the world-anchored peer sphere (a port extension). A peer's un-wreck arriving while the local pilot's own collapse/wait/expand was in flight overwrote gWarpPhase/gWarpPOV and killed the POV vortex. Invisible before the respawn fix only because overlapping respawns barely existed; now they are routine. Fix: the POV lifecycle owns the slot -- BTStartWarpEffect self-skips while it is active ([tloc] peer warp SKIPPED). 2-node bench: 20/20 POV collapse+expand pairs, 9 peer spheres played, 11 correctly skipped; solo: 8/8 pairs unchanged. 2. "Comms panel counted no deaths" -- panel machinery CORRECT; the 4-node zeros were the bench's own CPU crush (4 core-pinned instances starved the PilotList to <0.6 Hz, so rows redrew minutes-stale). Added the arbiter: [score] panel DRAW slot/pilot/kills/deaths edge log (BT_SCORE_LOG) -- the 2-node rerun drew 0->9 / 0->11 live on both nodes, local AND replicated (SBMIRROR rows confirm owner->replicant tally flow on all 4 stress nodes). Also: the mech3 offline-authoring stubs declared every <Subsystem>::DefaultData as Entity__SharedData while the real statics are Simulation__SharedData (this engine derives Entity FROM Simulation) -- ~20 ghost symbols /FORCE silently resolved to garbage. DefaultData half fixed (SubsystemDefaultData now returns the true common base Simulation::SharedData); the CreateStreamedSubsystem stub signatures remain wrong (nested SubsystemResource* + ResourceFile*), are cold (no callers), and are tracked in open-questions + gotchas §6 stub-typedef corollary. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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Joe DiPrimaandClaude Fable 5
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36f68718c2 |
the visible limp (#78): there was never a jump-jet clip set -- the 'Airborne' drivers ARE the gimp gait machines
The port had FUN_004a5bf8/71f4 fully reconstructed as AdvanceBody/Leg-
AnimationAirborne, gated on (MovementMode()==3||4) && jumpCapable@0x580 and
believed dead ("the test mech never jumps"). The binary says otherwise:
mech+0x40 in that gate is the graphicAlarm LEVEL (3=left-leg gimp, 4=right)
and +0x580 is hasGimpClips, set by the conditional loader block that probes
'wgl' and fills clip slots 22-27 (wgl/wgr/ggr/ggl/gsl/gsr) plus the four
measurements at 0x53c-0x548 (wg entry strides = speed caps, gg cycle strides).
Renamed the five jump* members + both drivers accordingly.
New: GimpBodyClipFinished @004a6344 / GimpLegClipFinished @004a7970 -- the
gimp transition machines, branched from the normal finished-callbacks. Phase-
correct limp entry (left-gimp enters 0x16/wgl only from a RIGHT step, right-
gimp 0x17/wgr from a LEFT step), gg cycles at gimp cadence, gs exits, and the
demand clamp to the gimped side's speed cap (leg cb writes it back into the
mapper -- the binary's authentic slowdown; the T3 x0.5 stand-in in mechmppr is
retired, BT_GIMP_SPEED now defaults 1.0). The binary's gimp machines have no
reverse entry -- the "reverse disabled" behavior is now binary-proven.
Reviving the dead drivers replayed two port-glue bugs (gotcha #24): the raw
*(controlSource) mapper read (null -> crash at first engagement) and the
missing alarm->member state re-sync (machine pinned in one run state). Both
fixed; bench harness gained BT_SELF_DAMAGE_TICKS=<n> to hold a zone past
LegHalfStructure without destroying it.
Bench-verified (madcat, novice, zone 16): crossing -> alarm 4 -> wgr entry
from a left step -> 8k+ frames stable in the ggl limp cycle at cadence 14.77
(vs 18.5 walk / 22+ run) with raw demand still 50. [T2]
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Fable 5
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2e9c78d604 |
Gait: the AUTHENTIC walk lean -- interior/exterior clip sets, level cockpit + leaning mechs (task #59)
The MadCat (and every leg-mech) leans -8deg into a walk / -11deg into a run --
an authored jointhip (hingex) pose in the EXTERIOR gait clips that the walk/run
CYCLE clips never rebind, so it HOLDS. The 1995 game keeps a separate INTERIOR
('i'-suffix) clip set for the mech you PILOT: those shake jointshakey (cockpit
rattle) and OMIT jointhip, so your own view stays level while everyone else sees
you lean. The port had this entirely dead -- the local cockpit mech pitched
-8deg into the ground (user-reported "staring at the ground").
ROOT CAUSE (two stacked bugs):
- The authentic ctor clip-set gate (@part_012.c:10308-10320) was reconstructed
as no-op stubs: LoadLowDetailBody/LoadHighDetailBody MISLABELED the
FUN_004a80d4/86c8 GAIT-CLIP loader addresses as a "body LOD" pair, so the gate
did nothing and a separate unconditional LoadLocomotionClips always loaded
EXTERIOR clips.
- LoadLocomotionClipsExt (the interior loader) was a stub aliased to the
exterior loader.
FIX:
- Reconstructed the real 4-char INTERIOR loader (byte-exact vs @004a86c8; the
'i'-suffix table dumped from the exe @0x10d74d: swri/wwri/wwli/...; all 18
base clips confirmed present in BTL4.RES for mad/blh/ava).
- Fixed the ctor gate: getenv("L4VIEWEXT") || (instanceFlags&0xC)==4 -> exterior
(replicant / forced external view); else -> interior (local cockpit master).
Removed the mislabeling no-op stubs.
- PORT ADAPTATION (MaintainViewClipSet, per-frame in PerformAndWatch): the port
never sets the replicant COPY bit (all MP mechs build as local masters --
heat-sim/scoring/torso-watcher-connect all run on both, by design), so the
ctor gate lands everyone on interior. Pick the set by VIEWPOINT instead: the
mech you pilot keeps interior (level cockpit), every other mech flips once to
exterior (the lean). Reloads only on a viewpoint-status change; the sets
share stride data so the swap is seamless. Model pointers stashed at ctor.
VERIFIED live (BT_HIP_LOG probe): your walking mech writes jointhip=0 (level);
the peer's replica in the other pod's view leans at exactly -8.0/-11.1deg --
the authored clip values. A/B control: L4VIEWEXT=1 forces the walking master
back to 74 sustained -8/-11 writes.
KB: locomotion.md ("NO walk lean" audit conclusion CORRECTED -- the lean is
authored + sustained + clip-set-specific), asset-formats.md (.ANI parses
pitch/yaw/roll for all joint types; KeyJointPos translation; cycle clips carry
no pitch), open-questions.md (item closed).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Fable 5
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946323b696 |
Gyro: damage fan-out FUN_004b2980 -- the cockpit hit-BOUNCE is live (task #56)
Re-disassembled the unexported gap 0x4b2980-0x4b2d8b byte-exact (capstone over
section_dump.txt) and reconstructed Gyroscope::ApplyDamageResponse:
- zero-damage + Collision(type 0) no-op; hit direction = Damage::damageForce
or a RANDOM horizontal fallback when ~zero (per-component sign roll then
value roll -- binary-legal until senders fill damageForce)
- direction rotated by the yaw-only torso-twist frame (placeRot=(0,twist,0)
-> euler->matrix, the FUN_00408744 raw row-dot reproduced verbatim)
- per-type scaling amount / damageMultiplier[type] * damageResponse[type]
.{trans,pitchRoll,yaw,vibration}; Explosive alone multiplies burstCount;
each clamped at 1.3f
- four kicks: impulse(trans, dir), torque(pitchRoll, dir), impulse(vibration,
vibrationDirection@0x390) and verticalImpulse(yaw, dir)
Layout corrections (byte-verified): gyro+0x390 is ONE Vector3D vibration axis
init (0,1,0) -- was mis-split as scalars animationOffset/Scale/Phase; mech
+0x5c4 is a FLOAT rumble-period countdown (gyroRumbleTimer) -- was mis-typed
int clipLoadGuard.
Call sites wired (binary-gated):
- take-damage hub: mech.cpp TakeDamageMessageHandler, FIRST action (@0x4a0264
in hub FUN_004a0230) -- an invalid-zone hit still bounces
- crushable-icon crunch: mech4.cpp, torque 0.4 along the bounce delta-v + up
impulse 0.2 (@4aa81e/@4aa86c)
- firing recoil: projweap.cpp FireWeapon, damage>3 -> impulse (0,0.6,-1.5)
x damage/16 (@4bc136-4bc19c) via the new Mech::GetGyroSubsystem accessor
DEFERRED (recorded in KB with the byte recipe): the alternate-gait engage
jolt + 0.4s rumble (@4aa158-4aa365) -- its gates are [T3]-flagged and it
mutates the #49/#50-stabilized gait machine.
Verified live: [gyro-dmg] fires per hit with correct type scaling; eyePosition
shows the damped bounce (ramp to ~0.015u, oscillating Y, decay to zero); kill
chain un-regressed; no NaN.
Also recorded in KB: the OFFSET-COCKPIT verification -- Thor's authored
jointeye tranx=+1.13 matches its canopy X-center exactly AND our in-game eye
reproduces it to the hundredth (the placement model is correct per-mech); and
the playable roster is 8 models (strider/raptor/firstrtr/blkjack have assets
but no model resource -- BT_FORCE_MODEL with those names = NULL-resource AV,
cdb-verified, not a code bug).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Opus 4.8
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7b7d465e5e |
Initial commit: bt411 -- standalone Windows BattleTech (Tesla 4.10 port)
Clean, self-contained extraction of the BattleTech-specific work from the
reverse-engineering workspace -- engine + game + content + build, with nothing
from Red Planet or the raw archive dumps. Builds green (Win32) and runs the
single-player drive->animate->target->fire->damage->destroy loop out of the box.
Layout:
engine/ MUNGA + MUNGA_L4 shared 2007 engine, carrying our BT render/loader
work (bgfload/L4D3D/L4VIDEO: BSL bit-slice decode, LOD/ground/shadow
models) + image codec; the minimal rp/ headers the audio HAL needs
game/ reconstructed BT logic + surviving-original BT source + fwd shims
+ WinMain launcher
content/ full runtime tree (BTL4.RES, VIDEO/, GAUGE/, AUDIO/, eggs, BTDPL.INI)
docs/ format specs + reconstruction ledgers
reference/ raw Ghidra pseudocode (recon source-of-truth) + decomp exporter
tools/ MP console emulator + map/resource scanners
One top-level CMake builds munga_engine lib + bt410_l4 game lib + btl4.exe.
All paths relativized (186 fwd shims + ~437 CMake abs paths -> repo-relative);
DXSDK is the one external, overridable via -DDXSDK. Verified: builds to a
byte-identical 2.27MB exe and runs combat (TARGET DESTROYED, 0 crashes) against
the bundled content.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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