d1ce99402ff45e64e0f8a4f9ca26a8fa99cbb3a5
11
Commits
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fa0b825b60 |
Combat: FIX missile direct damage 6x over-application -- damage once per salvo (task #62)
User live regression: missiles killed a mech in ~2 shots ("takes way more than 2
normally"). Root cause -- DamageZone::TakeDamage (arcade @0041e4e0 == WinTesla
DAMAGE.cpp:379) is `damageLevel += amount*scale` and IGNORES burstCount. So the
arcade's ONE cluster Missile per trigger lands its damageAmount EXACTLY ONCE; the
missileCount/burstCount split is cosmetic for zone damage (only gyro-bounce +
splash-falloff read burstCount). The port re-expresses that one cluster as N
flying rounds and was damaging on EVERY round = ~missileCount x too lethal on the
direct hit (mirrors the splash over-application fixed in
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267059ab88 |
Damage economy RECONCILED: 3 stand-ins fixed, 3 paths confirmed authentic (task #60)
Full 5-path audit of the damage economy vs the decomp (5-finder + adversarial-verify workflow), resolving the KB self-contradiction the binary-coverage audit flagged. CONFIRMED AUTHENTIC as-is (no change needed): - Energy beam (emitter.cpp): damagePortion = authored DamageAmount x (charge/seekV)^2; the ctor x1e7 and fire x1e-7 cancel (_DAT_004bafbc dumped from the exe = x87 80-bit 1e-7 exactly). - Autocannon (projweap.cpp): full authored DamageAmount from resource +0x19C delivered unmodified; the 0.0625 at :667 is the shooter's own gyro recoil, not the round. - Zone-armor BASE model: damageLevel += amount x damageScale[type] (engine DAMAGE.cpp:379, called mechdmg.cpp:427), legs x0.5, 1.0=dead. 3 STAND-INS FIXED (all byte-verified against the decomp): - A. mechdmg.cpp:451 -- read the phantom `stance` member (no binary offset, zero writers -> perma-0), so the leg-shot-out -> fall/death branch was DEAD. Now MovementMode() (mech+0x40, @part_012.c:6910). - B. mechdmg.cpp:458 -- guarded the leg partial-failure graphic on the always-0 IsAirborne() stub where the binary calls IsDisabled() (@0049fb54 = movementMode 2||9). On a wreck the binary SUPPRESSES the write; the stub let it corrupt graphicAlarm 9->4/3 -- the task-#52 wreck-graphic bug, now fixed AT SOURCE (was only masked by the IsMechDestroyed latch). - C. mech4.cpp:1551 -- flat kShotDamage=12 fed as the kill-score damageAmount (the KB self-contradiction: task #8 claimed it retired, but it was live). The score handler @0x4c02e4 derives the whole kill award from it, so every kill scored identically regardless of weapon. Now lastInflictingDamage -- the real killing-blow magnitude, latched in TakeDamageMessageHandler (mech.cpp:624), mirroring the per-hit path (mech4.cpp:1207). The phantom `int stance` slot is reused for the new Scalar member (size-neutral, no layout shift); init 0 in the ctor. DEFERRED (task #60-D, documented): the missile CLUSTER model -- the port fires N flying rounds (net armor total authentic) vs the binary's ONE missile with a random burstCount cluster roll (loses cluster variance + single-zone concentration). Blocked on an OPEN decomp semantic (does burstCount multiply armor or only the gyro kick? settle at FUN_004bef78 -> FUN_004be078 -> EXPLODE.cpp:209-210). VERIFIED live: clean build; 2-node fight -> clean center-mass kill (no crash, kills 0->1); [zone-armor] dump confirms per-zone armor 50-140 + legs x0.5. NB the displayed POINTS score still reads 0 -- a SEPARATE open gap (scoreAward + role/team/tonnage multipliers unwired); fix C corrected the damage INPUT to that formula. KB swept: open-questions.md (self-contradiction resolved + task #60 summary + deferred missile item), combat-damage.md (damageScale is type-indexed not even/odd; task-#52 source fix; kill-score section), RECONCILE.md (missile = ONE spawn not N), stale comments in mechweap.cpp (SendDamageMessage is LIVE), mislanch.hpp, mechdmg.cpp (FUN_0049fb54 = IsDisabled). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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02cdfd6576 |
Torso: the TWIST goes LIVE -- electrical watchdog chain, centered crosshair, coherent controls (task #57/#58)
The MadCat torso twists, the view turns with it, and targeting follows. Three reconstruction fronts closed: THE ELECTRICAL WATCHDOG CHAIN (why the torso never powered up): - PowerWatcher::UpdateWatch reconstructed (@004b181c, the REAL registered Performance -- PTR @0050f5fc; Ghidra missed the fn start): the watchdog MIRRORS the watched subsystem's electrical level (+0x278), brownout downgrade when gen output <= minVoltage% x rated. @004b1804 relabeled ResetToInitialState (slot 10) -- the old "Simulation" tag was wrong. - The factory watcher-CONNECT pass reconstructed (vtable slot +0x38, @004aee2c/@004b1a40 byte-identical, recovered from raw exe bytes): watchedLink.Add(roster[watchedSubsystem]) on the master node. Was the SubProxy::Start() no-op -- every watchdog sat at 0 forever. - MinVoltageScale = 0.01 (a 10-byte x87 literal @0x4b1924; was 1.0f = permanent brownout) and PowerWatcher's Derivation chains its REAL base HeatWatcher (the HeatableSubsystem stand-in broke IsDerivedFrom for the whole Torso/Searchlight/ThermalSight family). - KB correction swept: derivation tag 0x50e604 = HEATWATCHER (not "HeatSink"); the btl4gaug heat-widget gate now tests it via the BTIsHeatWatcher bridge. THE CROSSHAIR (task #58 forensics, 6-agent workflow + live probes): - The VIEW is TORSO-MOUNTED: jointtorso -> jointeye -> siteeyepoint in every twist-capable .SKL; the camera + canopy ride the same hinge subtree through HingeRenderable's live matrix-stack compose -- ALREADY WORKING in the port. The crosshair stays screen-centered (center IS the boresight); the twist reads on the tape carets/compass/radar. - The real bug was the port's gBTAimX = tan(twist) slew (the falsified "body-mounted view" model): the camera already carried the twist, so the crosshair counter-slid to hull-forward and the fire ray with it. Deleted; the pick ray inherits the twist from the yawing eye basis. - Two instrumentation traps documented (chase-eye-as-default-camera, BT_FORCE_TORSO clobbering real joints -> the hook now only fills unresolved ones); an over-correcting explicit eye compose was added on those false readings and retired the same day. CONTROLS + REPLICATION: - Q/E spring-center on release (the axis is a twist-RATE demand; the old hold-deflection model drifted forever); X also zeroes the axis and pulses the authentic torso Recenter (@004b6918). M cycles control mode via the real CycleControlMode body. - Torso update-record DIRECTION fixed: engine truth is Write=serialize / Read=apply; @004b6a78 is the READ (was mislabeled Write) and the missing WRITE @004b6a1c recovered from raw disasm (recordLength 0x1C, twist/vel/rate at +0x10/14/18) -- kills the replicant's 0xCDCDCDCD -140-degree ghost twist. - Marching-ghost desync: 4 Standing-case guards zero stale reverse cycleSpeed (negative cadence passed the <= ZeroSpeed stop gate). - Kill credit rerouted to the OBSERVED killer (lastInflictingID -> killer's player link) -- kills count, target K/D populates. KB: subsystems.md (watcher chain), multiplayer.md (record direction), combat-damage.md + gauges-hud.md + cockpit-view.md (torso-mounted view re-correction), decomp-reference.md (new addresses + tag fix), open-questions.md (dead capability-roster loops 2-4, snapshot CD read). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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065c114590 |
Impact-FX FORENSICS wave: the i860 specialfx engine, per-round detonations, the ram economy closed
The "we're off the rails" reinvestigation -- a 5-thread evidence workflow
(logs / PFX data / RES model lists / decomp / port audit) + the i860 firmware
decode, then surgical fixes. Every claim tiered; the wrong turns are on the
record in the KB alongside the corrections.
THE OLD-STYLE SPECIALFX ENGINE [T1, firmware-decoded from VREND.MNG]:
rebuilt scratchpad/i860dis.py (binutils opcode table); mapped the dispatch
(data+0xdd0c; sfx trigger 0xf040cda0, install 0xf040cdc0, step ~0xf0413698,
instance init 0xf04128d8); decoded the heat model EXACTLY: per 30Hz board
frame h *= cool_a; RGB_ch = h_old*(h_new*cook_ch - 0.25) + 0.25 (K=0.25 =
the ember floor @VA 0xF080; kill at h <= 1e-4 @0xF0A0); alpha fades cool_b
x RAW dt (PER-SECOND -- the x30 scaling made laser hits invisible); 7s cap;
y_off = the kill plane; "variance" is DEAD DATA (binary reads "variance",
INI authors "varience"). The 13 descriptors (PPCHit/LaserHit/MissileHit/
Chunks/Sparks/Fireball...) parse from BTDPL.INI and render via the BTPfx
layer -- heat bursts draw the FIERY sheet (brightness over fire), .PFX keeps
GRAYSCALE (authored colours: DNBOOM orange, DDAM gray).
HIT-PACKAGE CENSUS [T1, RES byte-verified]: ppchit=[8] lzrhit=[9] mghit=[7,11]
canhit=[11] mslhit=[10,12,1023] explode=[6]; all 8 mech death lists identical.
Effect routing corrected in BOTH consumers: <100 = specialfx, >=1000 = psfx.
"SILVER MIST x5" ROOT CAUSE: SHKWAVE.PFX (mslhit's 1023) authors maxIssue=5
relPeriod=0.2 rate=1 -- the ONE file where rate contradicts the window; the
emitter trusted rate -> 5 shells at exactly 1Hz. Emission rate now always
maxIssue/releasePeriod.
PER-ROUND DETONATIONS [T1 @004bef78]: every missile round spawns its own
ExplosionModelFile at ITS impact (hull + terrain) -- a volley ripples 12
fireballs like the demos; rack-tube launch spread [T3] (GUIDED rounds only --
the slot-0 deflection sent every AFC100 shell 3.4deg left/2.5deg down: the
phantom "4th gold beam"); replicant salvos detonate too (launcher index rides
the visual push). Missile damage bundles through the shooter's messmgr with
the launcher's subsystemID (mslhit fires at the consolidated point; the
binary's dedup CONFIRMED [T1 @0049b784] -- a workflow agent's per-record
claim REFUTED by direct decomp read).
DAMAGE-BAND SEMANTICS [T1]: MechDeathHandler fires the CURRENT band effect on
any damage rise (the binary's changed-flag coalescing) -- a mauled mech under
fire smokes/burns per hit; bands 3/4 are authored fire plumes.
THE RAM ECONOMY -- CLOSED (3 layers, measured live):
1. armor = POINTS (every zone: damageScale = 1/armorPoints, armor 50-140;
the [zone-armor] BT_DMG_LOG dump);
2. StaticBounce prices rams with authored moverMass ~1.3e6 -> ~59,000 pts
@10m/s; the binary dispatches it RAW but pod MP dropped it on the local
replicant (MECH.CPP:986 warns) -- ram damage was NETWORK-INERT; our
task-#47 replicant forwarding surfaced it as a one-shot. Port
normalizes x1e-3 to the point economy [T3];
3. contact EDGE (ramLastVictim/ramContactLinger): the binary's bounce made
separation implicit; our gait-derived velocity re-priced full rams at
60Hz (the respawn explode-loop). One bump = one hit; pressed = BLOCK.
PLUS: sfx size x0.5 + 1.25m visibility floor + hot-phase occlusion [T3];
particle pool 2048->8192 (missile traffic starved laser bursts -- the
"intermittent effects"); replicant beam aging (a lost beam-END record pinned
a stale beam on forever); UV-variant noise stamps (mask-safe mirror/swap);
no scroll on particle stamps (material-path only); BT_FX_TEST/fxshot.py
self-verification harness ([beam-draw]/[zone-armor]/[collide-tx] telemetry).
KB: rendering.md (specialfx engine + census + closeout), combat-damage.md
(ram economy + band semantics).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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fd055281a8 |
Combat: THE AUTHENTIC DAMAGE ECONOMY -- authored per-weapon amounts through the real fire chain (task #8)
Three root causes, all fixed: 1. kDamageScale was 1.0 -- _DAT_004bafbc is an x87 float80 = 1e-7, cancelling the ctor's x1e7: damagePortion = authored DamageAmount x (charge/seekV)^2 (closed form at fire time; madcat AC=25/LRM=50/ERLL=6, bhk1 PPC=12/SRM=35). The observed "0.25" was the degenerate EC=1 fallback, never authored data. 2. CheckFireEdge NaN latch: TriggerState carries ControlsButton INTS; the release value (-65) is a negative NaN. The binary's x87 unordered compare read it as "released"; IEEE-correct float compares latched the edge detector shut after the first release -- the reason the emitter discharge chain NEVER fired in-game. Fixed with bit-pattern sign compares. 3. The weapon-side submission LIVE: Emitter::FireWeapon fills damageData (amount + damageForce=target-muzzle [the gyro directional-bounce feed] + impact) -> MechWeapon::SendDamageMessage (@004b9728 real body) -> messmgr consolidation with per-weapon records + explosion bundling. The mech4 bring-up damage block + flat kShotDamage retired to diag hooks. Bonus: LODReuseHysteresis 0.82 -> 0.33 (double misread). Zone model verified byte-exact (no change). Solo end-to-end: 5-record volleys (2 PPC + 3 ERML with authored amounts), per-weapon zone granularity, explosions, kill. Heat stays bring-up scale pending the heat-calibration audit [T3]. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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87c25b9206 |
Combat: critical-subsystem plugs BOUND -- zone destruction damages carried subsystems (task #2)
The binding was in the zone ctor all along: Ghidra dropped the two arg pushes @0049d0e1 (Slot::AddImplementation(subsystemArray[streamedIndex])), making it read as a bare Resolve(). DZSlot stand-in -> engine SlotOf<T>; SendSubsystemDamage rewritten to the recovered @0049c9a8 body (allotment into the subsystem's OWN private zone; vital -> graphicAlarm 9); CriticalHit -> real ApplyDamageAndMeasure; parentArtifactZone.Add revived (LOD damage averaging); videoObjectFlag renamed vitalSubsystem (+0xE4). BT_CRIT_PROBE diag added. Verified: 66 plugs bound/mech; probe-destroyed zone -> crits damaged/DESTROYED, statusAlarm + destroyed-skin chain fire; MP kill + solo un-regressed. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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160b78e38d |
Respawn: swirl warp, cockpit-not-black on respawn, observer sees peer un-wreck
Three respawn-visual bugs the user saw, each grounded in the engine/decomp:
1. Warp = flat blue BLOB, not the demo's swirly blue/light-blue/white shimmer.
Ground truth (content/VIDEO/MAT/DAY/BTFX.VMF): tsphere_mtl = a SCROLLING bintA
texture (tsphere_scr_tex, SPECIAL SCROLL) + EMISSIVE {0.7,0.5,1} + RAMP "sky"
(dark-blue->white). The swirl IS the scrolling texture; the colour is the
emissive/ramp. Our draw did COLOROP=SELECTARG1/ARG1=TFACTOR, which REPLACES
every texel with one flat colour -> the blob. Fix: MODULATE the (bound,
scrolling) texture by a TFACTOR set to the authentic EMISSIVE hue (0xB380FF)
so the swirl survives and reads blue-white. DrawMesh's cached SetTexture
(L4D3D.cpp:1215) leaves our MODULATE ops standing since textured meshes drew
first. Additive glow, all state saved/restored.
2. First-person view BLACK on the dying/respawning mech until V. SetViewInside's
body-hide + '_cop' canopy suppression + viewSkeleton update were gated !wrecked,
and RebuildMechRenderables (respawn un-wreck) restored the full OUTSIDE torso
with no '_cop' rule -> the cockpit eyepoint ended up wrapped in opaque geometry.
Fix: factor the per-segment mesh selection into ApplyViewSkeleton(viewpoint,
inside) shared by SetViewInside AND RebuildMechRenderables, so respawn re-asserts
the inside skeleton + '_cop' hide; record viewSkeleton even while wrecked. Only
the mech the local camera views FROM gets the inside treatment (a replicant is
always outside).
3. OBSERVER never saw the peer respawn -- the peer's wreck sat forever. The wreck
appears incidentally via rising damage-zone replication -> MechDeathHandler::Tick
-> BTRemakeMechModel (one-way). The un-wreck+warp ran master-only in Mech::Reset.
Fix (reuses the existing damage channel, no stream-framing change): Mech::Reset
also ForceUpdate(DamageZoneUpdateModelFlag) so healed zones cross; Tick handles
the FALLING edge -- on a ReplicantInstance whose zone heals from destroyed, call
BTRebuildMechModel + BTStartWarpEffect once (wasWrecked latch). This is the port
analog of the binary's type-0 graphic-state -> ResetPose un-wreck hook
(Mech::ReadUpdateRecord case 0); the full Mech::WriteUpdateRecord death record
(type 6) is deferred (would touch the netcode framing).
Smoke-verified headless (2-node): victim respawns intact + warp; observer logs
"replicant un-wrecked + warp" at the peer's spawn point; no crash.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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247e51e1e1 |
Reset-based respawn: reuse+heal the mech, not create-a-new-one (task #52)
The respawn glitches (2 mechs, on-fire respawn, camera-inside, can't-control, wreck-never-disappears) all traced to one architectural divergence: our respawn SEVERED playerVehicle on death and CREATED a new mech, leaving the old as a permanent wreck and building a duplicate viewpoint whose old render tree was never torn down. The authentic engine (FUN_0049fb74 + RPPlayer) REUSES the same mech entity: on respawn Mech::Reset heals it and moves it in place. Implemented faithfully, adapted to our layout (the 1995 raw offsets map to different 2007 engine fields, so reset the equivalent named members, not the offsets): - Mech::Reset (real, was a reposition-only stub): reposition + kill dead-reckon (projectedOrigin/projectedVelocity/updateVelocity + our relocated gait accumulators) so the replicant stops lerping to the death spot; clear the death latch (movementMode=1, graphicAlarm=0); Heal every damage zone (new Mech__DamageZone::Heal: full structure, intact skin); DeathReset (vtable+0x28) every subsystem; ForceUpdate to broadcast. - btplayer.cpp: VehicleDead no longer severs playerVehicle; the respawn re-post gates on the mech still being dead; DropZoneReply resets the EXISTING mech in place (heal+move) instead of creating a new one, then fires the warp. Warp moved to the shared placement (initial drop-in + respawn). Verified 2-node: mech entity ID stays 3:22 across 3 deaths (reused, not a new 3:32); each Reset logs alive=1, 20 zones healed, 33 subsystems reset; A sees ONE mech (no wreck+new pair). Warp fires each respawn. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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a3d67cc639 |
Combat visible + killable: Wword root-cause fix, .PFX effect layer, RemakeEntity swap
The 'can't kill the enemy / no visible damage' cluster, root-caused and fixed faithfully: - STEP-6 unaimed path was INERT: the cylinder table was 'cached' at Wword(0x111) -- the recon ABSORBER bank (stores nothing, reads 0) -- so every unaimed hit silently no-op'd. Promoted to the named member Mech::damageLookupTable (binary this[0x111], was mislabeled ammoExpended). New gotcha class recorded (reconstruction-gotchas §2) + sweep; 2 dead multiplayer branches logged. - Fire path migrated off the stale vital-zone aim onto the completed STEP-6 unaimed dispatch (zone=-1 + beam entry point -> cylinder resolves the exterior zone). No more invisible 1-shot kills; death via the authentic cascade (~14 center-mass hits). Wreck stays TARGETED on kill (beams stop on it); scoring latches off. - SendSubsystemDamage AV fixed: unbound critical-subsystem plug guard (43 unbound plugs/mech logged as an open question -- the binding itself is a gap). - RemakeEntity (render damage swap): the 1996 render state machine's missing Remake state, reconstructed as an in-place SetDrawObj mesh swap keyed by each segment's damage-zone graphic state (tree dtor doesn't cascade -> never rebuild). Destroyed arms/guns visibly wreck (the only variants the RES registers). - BT .PFX particle layer (L4VIDEO.cpp): the 1995 explosion/damage effect layer, unported since 2007 (DPLIndependantEffect/ReadPSFX/ExplosionScripts all stubs). Parses the authentic VIDEO/*.PFX definitions via the [pfx_day] psfxN mapping; premultiplied blending renders BOTH families from the same data (additive-style fire + occluding smoke -- DDAM2 is 30% grey, DDTHSMK ramps negative: impossible additively); depth-sorted billboards with a radial-masked grit sprite; impact-frame orientation (.PFX offsets are authored mech-local, -Z = out of the struck armor toward the shooter) for weapon hits AND damage bands (via lastInflictingID, now maintained -- was declared but never written). Both effect-number encodings route (raw dpl <100 + WinTesla 1000+slot carried by the band resources). Death fires the authentic dnboom (7) + ddthsmk smoke plume (1). - Effects anchor at the impact point / damaged zone's segment, not the mech origin (no more fire at the feet). - Dev force-input gates BT_AUTOFIRE / BT_AUTODRIVE for headless fire-chain verification; BT_PFX_ADD=1 flips the particle blend for A/B. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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7c455303bd |
MechDeathHandler: per-zone destroyed-skins + explosions (faithful, exported)
Fixes the "kills are invisible" report: a mech died only at the state level, with no visible destruction on its body. Root cause: the per-zone damage-state descriptor table (binary zone+0xd4) that drives destroyed-skins + explosions was never built -- its loader (Mech__DamageZone::LoadCriticalSubsystems / FUN_0041e4a8) was a no-op stub, and MechDeathHandler itself was a no-op stub. The surrounding plumbing (the per-zone load loop over the type-0x1e resource, the death-handler slot) was already correct. Whole pipeline is EXPORTED -- no stand-ins. Reconstructed: - Mech__DamageZone descriptor table (binary this+0xd4): un-stubbed LoadCriticalSubsystems (FUN_0041e4a8/FUN_0042a748/FUN_0042a2c8) to parse the real type-0x1e stream -- entry = [f32 DamageLevel][i32 EffectResource] [i32 GraphicState][f32 TimeDelay], ascending by DamageLevel. Verified live: 6 entries/zone, first threshold 0.2, effect 26, across all 40 zones, no crash. - The three lookups (FUN_0042a664 by-level / FUN_0042a5f4 crossing / FUN_0042a6c4 by-graphic-state) as Mech__DamageZone methods. - The real MechDeathHandler (FUN_0042a984 ctor / FUN_0042aa2c Performance / FUN_0042a9f4 dtor), replacing the stub: each tick it walks the zones and, as a zone's damageLevel rises across a descriptor threshold, fires that entry's explosion (binary +0xb8 & 4) and, on destruction, the Destroyed-graphic descriptor's explosion (+0xb8 & 8), applying the descriptor's GraphicState (the destroyed skin) to the zone. Runs for EVERY mech, so the enemy visibly falls apart as it dies. Integration: the binary ticks MechDeathHandler off the mech's Performance list (mech+0xbc), which the bring-up drive override bypasses, so Mech::PerformAndWatch drives Tick() directly (same approach as UpdateDeathState). Effect spawn uses the established Explosion::Make port (BTSpawnDamageEffect) -- the authentic dispatch (class-5 message -> the 0xBD3 SubsystemMessageManager effect manager) is unported. Runtime: builds clean, boots clean, 42 descriptor tables load with sensible byte-aligned data, no crash. Live effect firing is combat-triggered (verified by the load + the wiring; the [deathfx] threshold-crossing log fires under BT_DEATH_LOG). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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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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