Reconstruct the whole engineering-screen (MFD) subsystem cluster-panel system in
btl4gau2 (from the Ghidra decomp of BTL4OPT.EXE) and register the vehicleSubSystems
config primitive:
- Sub-gauges: AnimatedSubsystemLamp/AnimatedSourceLamp (OneOfSeveral + cooling/
power connections), ScalarBarGauge (BarGraphBitMapScalar + generator-voltage
connection), ConfigMapGauge, plus the 3 file-private GaugeConnection classes
(@004c3134/31ec/3288 samplers).
- SubsystemCluster base (ctor builds ~11 child gauges across the MFD + engineering
ports; Execute/dtor/frame-draw/enable helpers) + the 5 subclasses HeatSink/
Myomer/Weapon/Energy/Ballistic (ctors + Executes).
- VehicleSubSystems::Make dispatcher (@004cbaf0): per-subsystem factory keyed on
classID (HeatSink 0xBC3 / Myomer 0xBC6 / Energy 0xBC8,0xBD4 / Ballistic
0xBCD,0xBD0), placed via the 12-row aux-screen geometry table, + registered in
BTL4MethodDescription[].
SAFE + gated: gauges only build under BT_DEV_GAUGES/pod, and until Phase 2
populates the subsystem aux-screen field (subsystem[0x1dc]) the Make hits its
"aux screen = zero" skip -> combat untouched. Two minor children deferred as
marked NULLs (SegmentArc270 recharge dial + BitMapInverseWipeScalar eject wipe --
their ctors are btl4gaug placeholders). Raw-offset subsystem reads (0x1dc/0x1e0/
0x1e4/0x31c/0x334/0x364/0x43c...) marked BEST-EFFORT pending Phase 2.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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>
