Commit Graph
9 Commits
Author SHA1 Message Date
arcattackandClaude Fable 5 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>
2026-07-08 14:43:32 -05:00
arcattackandClaude Opus 4.8 4a4ec6855c gauge-complete P4e: SectorDisplay reconstructed + registered -> radar SECTOR X/Z read-out LIVE
The "sectorDisplay" cockpit primitive (Secondary overlay, the radar SECTOR X/Z
coordinate read-out) was PROSE-ONLY in btl4gau3 (placeholder Make, no ctor/
methodDescription/registration) -> the config line was parse-SKIPPED and never built.

Reconstructed byte-verified from the disassembly (ctor @4c9e10, Execute @4ca07c,
methodDescription PE-parse): SectorDisplay : GraphicGauge, sizeof 0xC4. Its Execute
reads the linked mech's world position and shows two 100-unit sector numerics:
  numericA = Round(-localOrigin.z * 0.01) + 500
  numericB = Round( localOrigin.x * 0.01) + 500
(rounding = round-to-nearest == FUN_004dcd94, corrected from the reviewer's wrong
"truncate" claim; 0.01 const PE-verified; -Z/+X axis + fchs confirmed from asm).
Overridden slots: LinkToEntity(9) caches the subject, BecameActive(3, non-inactivating),
Execute(16) -> satisfies the container-Execute rule. Layout overflow-locked
(static_assert sizeof<=0xC4). Make/ctor/dtor mirror the registered PilotList sibling;
the config image name is copied (nameCopy) since Execute reads it per-frame.
Registered in BTL4MethodDescription[].

VERIFIED LIVE (BT_SECTOR_LOG): Make port=1 pos=(125,579) image=helv15.pcc gridCached=1;
Execute -Z=960.4 X=361.6 -> sectorA=510 sectorB=504 (Round(9.6)+500=510, Round(3.6)+500=504
-- authentic 100-unit sectors from live mech position). Gauge composite renders full,
no crash. The skip list is now exactly the two remaining widgets (prepEngr x12, messageBoard).

Also: a permanent BT_GAUGE_SKIP_LOG diagnostic (GAUGREND.cpp, gated) that logs each
unregistered gauge primitive the dev-parse skips -- the tool that pinned this down
(earlier "not built" runs were killed before the lazy gauge-renderer init).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-07 21:25:48 -05:00
arcattackandClaude Opus 4.8 070af409f7 gauge wave P1a: publish heat/power/weapon attributes + radar zoom
The gauge-databinding-map workflow found most cockpit gauges resolve NULL
because the reconstructed subsystems publish only a fraction of the attributes
the config binds.  First publishing batch (attribute tables are read-only static
data; ids kept a dense prefix from each parent's NextAttributeID):

- HeatSink table dense-append: DegradationTemperature/FailureTemperature (the
  condenser temp-bar warn/max endpoints -- were NULL, so the two-part bars could
  not scale), NormalizedPressure/DegradationPressure/CoolantMassLeakRate, and the
  HeatSink link.  Condenser/Reservoir inherit this -> all 6 condenser temp bars
  now resolve current/warn/max (verified: BT_GAUGE_ATTR_LOG all OK).
- PoweredSubsystem::GetAttributeIndex() (new) publishes InputVoltage->voltageSource
  -- the cluster power-branch gate (the power-lamp/generator-voltage/state-lamp
  sub-branch is skipped when it resolves NULL).  Flows to Sensor/Myomers/weapons.
- MechWeapon::GetAttributeIndex() (new) publishes OutputVoltage/PercentDone->
  rechargeLevel; Emitter/PPC/ProjectileWeapon/MissileLauncher/GaussRifle DefaultData
  re-pointed at it (they carried an EMPTY default-constructed index -> resolved
  NOTHING).  Verified: the ER MED LASER / PPC / STREAK weapon clusters now render
  live recharge dials (were blank TEMP/STATUS).
- Mech::SetTargetRange un-stubbed (radarRange = range) -> the radar map scale +
  overlay range readout track the mapper's zoom (was frozen at 1000).
- GAUGREND ParseAttribute: env-gated per-binding resolution trace (BT_GAUGE_ATTR_LOG)
  -- durable diagnostic infra for the wave.

Verified DBASE+dev gauges: no startup/gauge-construction crash (dense chain intact),
combat un-regressed (TARGET DESTROYED), clusters build with InputVoltage resolving.
Remaining config-binding NULLs: HeatSink/AmbientTemperature (aggregate bank, P3) +
Searchlight/LightOn (P1b).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-07 16:22:45 -05:00
arcattackandClaude Opus 4.8 0bceb9a638 gauges/map: populate the radar entity grid + draw mech contact blips
Root-caused why the radar showed 0 contacts: the gauge renderer's moving/static
entity grids (queried by GetMoving/StaticEntitiesWithinBounds) were NEVER
populated -- the 1995 game fed them from ExecuteImplementation's InterestingEntity
iterator, which the WinTesla port dropped.

Fix (engine): add GaugeRenderer::RebuildEntityGrid() -- Clear + repopulate
movingEntities from the world's DynamicMaster + DynamicReplicant entities (the
vehicles/mechs; AllEntity would flood the grid with ~300 props/effects/terrain).
Called from the map's Execute phase 0 (under the gauge's guarded Execute, so a
fault disables only the map).  Verified: contacts are now found, combat un-
regressed (TARGET DESTROYED), heap-clean under BT_HEAPCHECK.

Fix (map): DrawMoving now draws a cross blip for mech-class contacts (0xBB9) when
the authentic pip raster set is absent (the BT pip table is stubbed in this engine
build).  KEY PROJECTION FIX: worldToView is a camera (view->world) matrix and
Point3D::Multiply applies only rotation+scale (NOT translation), so projecting the
absolute entity position left the viewpoint un-subtracted and the blip landed
off-screen (verified: blip @(580,-1154)).  Project the RELATIVE position (delta =
entity - viewpoint, already computed for the range check) instead -> the blip
projects viewpoint-relative + heading-rotated correctly (@(164,221)).

radarRange default 500->1000 (1km zoom) so contacts within ~500m show on the
radar (SetTargetRange, the real player zoom, is still stubbed).  BT_MAP_LOG traces
the blip coords.

STATE: the grid population + viewpoint-relative blip projection are correct and
combat-safe.  A reliable on-screen contact demo still needs the display-scale vs
spawn-distance reconciliation (the BT_SPAWN_ENEMY dummy sits at a varying, large
distance -- 377-828m -- beyond the display radius across runs) + the authentic pip
symbol/name/video-object infrastructure (still stubbed).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-06 22:07:19 -05:00
arcattackandClaude Opus 4.8 fb8c1d6ace gauges: colorMapperMultiArmor (worst-of-8-zones) + fix the interpreterTable overflow [widget recon 4]
Reconstructs colorMapperMultiArmor -- tints one schematic colour (a whole torso
section) by the WORST of up to 8 damage zones:
- MultiArmorConnection (@004c346c/@004c34f4): scans 8 zones via
  entity->damageZones[idx], keeps the max damageLevel, count==0 ? 100 :
  Round(worst*100).
- ColorMapperMultiArmor::Make/ctor (@004c3c48/@004c3d60): resolves 8 named
  zones to indices via Entity::GetDamageZoneIndex (13-param methodDescription).

ALSO fixes a latent HEAP CORRUPTION that registering this widget exposed (and
that would have blocked every further widget): GaugeInterpreter's bytecode
buffer is a fixed interpreterTableSize=46864 (GAUGREND.h) tuned for RP's config,
and its Insert() bounds guard is a Verify() that compiles out at DEBUG_LEVEL 0.
As each BT gauge widget is registered, more of BT's larger L4GAUGE.CFG resolves
into bytecode (vs being parse-skipped); colorMapperMultiArmor's 13 params x
hundreds of calls pushed the total past 46864 -> silent overflow past the char[]
-> heap smash detected later in mission bitmap loading (not the gauge code).
Fix: interpreterTableSize -> 262144 (sized for BT's full config).

Verified: parses, builds, all zones resolve, no /FORCE unresolved, combat
un-regressed (TARGET DESTROYED, 0 crashes), stable. Details: docs/GAUGE_COMPOSITE.md.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-06 16:56:13 -05:00
arcattackandClaude Opus 4.8 b526e92cad gauges: all 6 cockpit MFD surfaces in a SEPARATE dev window (Milestone C)
Generalizes the single-'sec'-inset (Milestone B) into a full 6-surface
compositor presented in its own top-level window -- the default under
BT_DEV_GAUGES (BT_DEV_GAUGES_DOCK=1 docks it into the main window instead).
A 960x384 window tiles all six pod instrument screens: Heat (COOLANT/BALANCE/
RES + condenser gauges), Comm (KILLS/DEATHS/SELECT TARGET), Mfd1/2/3 (DISPLAY/
PROGRAM/NEAREST frames), and the color radar (SCALE grid + dials + ARMOR
DAMAGE). Main 800x600 3D view is un-occluded; default DEV un-regressed
(TARGET DESTROYED after 8 hits, 0 crashes).

Design (mapped by the mfd-multisurface-map workflow):
- All 6 surfaces are bit-plane MASKS over the ONE shared SVGA16/pixelBuffer
  (sec=palette low byte; Heat=0x4000 UL, Mfd2=0x0400 UC, Comm=0x8000 UR,
  Mfd1=0x0100 LL, Mfd3=0x1000 LR), so the compositor reaches the SVGA16 once
  and extracts each by mask. No port-name reconcile needed on the dev path --
  fetch the BT names directly; the RP aux* names only matter to the pod's own
  SVGA16::Update demux (a deferred pod-only fallback).
- SVGA16::DrawDevSurface: two kernels -- palette-LUT (sec) + mono bit-plane->
  tint ((word&mask)?tint:0). BTDrawGaugeSurfaces iterates a 6-entry table.
- Separate window = one CreateAdditionalSwapChain on the existing device (no
  2nd D3D device). BTGaugeWindowRenderAndPresent (after the main EndScene):
  SetRenderTarget -> SetDepthStencilSurface(NULL) -> Clear -> BeginScene ->
  6 tiles -> EndScene -> restore -> swap->Present.
- KEY BUG fixed: the main 800x600 depth surface stays bound when rendering to
  the 960x384 gauge backbuffer; a bound depth smaller than the RT is invalid
  -> all draws silently fail (clear color, no geometry). Unbind depth (Z is
  off), restore after.

Pod SVGA16::Update/BuildWindows path byte-unchanged; all gated BT_DEV_GAUGES.
Content is still the authored cockpit frames + base-table gauges -- the live
MFD widgets need the BTL4MethodDescription reconstruction (this window is now
the live viewer for that work). Details: docs/GAUGE_COMPOSITE.md.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-06 11:43:31 -05:00
arcattackandClaude Opus 4.8 a256813395 gauges: secondary/radar MFD composites live on a dev box (Milestone B)
The pod's secondary/radar cockpit surface now renders as an inset in the
800x600 dev window under BT_DEV_GAUGES: radar/tactical grid, SPEED/HEADING/
MAGNETIC/PROP dials, and the color-coded ARMOR DAMAGE mech schematic -- real
gauge content (nzSec=27247), composited from the shared CPU pixelBuffer.

Composite pass (engine): SVGA16::DrawDevInset palette-expands the secondary
plane into a MANAGED texture on the MAIN device and draws an XYZRHW inset quad;
BTDrawGaugeInset() reaches the gauge renderer's 'sec' port and is called from
DPLRenderer::ExecuteImplementation as the last draw before EndScene.

Three reconstruction bugs fixed to get real content:
1. BTL4Application::MakeGaugeRenderer signature mismatch (REAL fix): the
   reconstructed no-arg override only HID the 2007-engine's widened 3-arg
   virtual MakeGaugeRenderer(int*,int*,int*), so the engine built a base
   L4GaugeRenderer whose ctor never parsed gauge/l4gauge.cfg -> empty symbol
   table -> "undefined label 'bhk1Init'" -> no ports/gauges. Matched the 3-arg
   signature so it truly overrides (args ignored; BT is fullscreen). Same bug
   class as the BTL4GaugeRenderer(false,NULL,NULL,NULL) ctor fix.
2. Parse hung on undefined primitives (gated dev accommodation): the BT gauge
   primitive table (BTL4MethodDescription) is still a stub, so an unknown
   primitive -> ReportParsingError -> Fail() -> a MODAL dialog freezing the
   parse. Under BT_DEV_GAUGES, skip the unknown primitive's params so labels
   register and the base "configure" primitive builds the ports.
3. Gauge widgets AV on NULL data bindings (gated): NumericDisplayScalar's NULL
   value_pointer -> GaugeConnectionDirectOf ctor deref (bind NULL->static zero);
   RankAndScore::Execute derefs unreconstructed game state (Gauge::GuardedExecute
   SEH wrapper -> Disable(True) on first fault).

All guards gated on BT_DEV_GAUGES: default DEV un-regressed (TARGET DESTROYED,
0 crashes) and the pod path is byte-unchanged (strict Fail, no guards).

Remaining (docs/GAUGE_COMPOSITE.md): the real gauge WIDGET reconstruction
(BTL4MethodDescription method table + gauge->game-state data bindings), then
Step 2 (RP<->BT MFD port-name reconcile) + Step 3 (2-window layout).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-06 10:59:45 -05:00
arcattackandClaude Opus 4.8 c13e72d0ba platform profile + gauge dev-composite (Milestone A: gauge renderer woken)
PLATFORM PROFILE (-platform pod|dev / BT_PLATFORM / run.cmd pod; default dev):
an env-preset selector, NOT a code fork -- it picks which environment the
existing video/gauge/input code reads.  dev = single 800x600 window + keyboard
(the working build); pod = RIO input + (on real hardware) the multi-surface
gauges/MFDs, mirroring content/SETENV.BAT (the pod path -- FindBestAdapterIndices
/ SVGA16 -- is left untouched).  The multi-surface needs the pod's 2 video cards,
so -platform pod does NOT auto-enable L4GAUGE on a dev box (stays bootable,
single-window).  Also fixes a real engine bug: SVGA16::BuildWindows
PostQuitMessage'd on a CreateDevice failure but fell through to a null-device
deref (segfault) -- now breaks (inert on the pod).

GAUGE DEV-COMPOSITE, Milestone A (option B; opt-in BT_DEV_GAUGES, default OFF):
wake the (dormant) gauge renderer so its CPU-rastered pixelBuffer can later be
composited into the dev window, WITHOUT touching the pod SVGA16 output path.
SVGA16 does no per-surface D3D in this mode (a DevGaugeComposite() gate forces
the no-surface path + short-circuits Update/Refresh).  Waking the never-exercised
gauge subsystem exposed 4 latent reconstruction bugs, each guarded:
SVGA16::Update / Refresh (empty mSurfaces[]), LBE4ControlsManager::MakeLinkedLamp
(NULL lamp manager), L4GaugeRenderer::NotifyOfNewInterestingEntity (garbage
warehouse chain).  It now boots STABLY; the gauge reconstruction is incomplete
(shadowed lamp-manager + warehouse members) -- Milestone B (the composite pass)
will reveal whether the content is real.  See docs/GAUGE_COMPOSITE.md.

Verified: default DEV un-regressed (combat DESTROYED, 0 crashes); pod path
untouched; BT_DEV_GAUGES boots stable.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-06 10:18:40 -05:00
arcattackandClaude Opus 4.8 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>
2026-07-05 21:03:40 -05:00