BT_DEV_GAUGES crashed a few ticks in: CoolingLoopConnection::Update
(btl4gau2.cpp) walks the 1995 binary's plug->link->subsystem chain via
raw +8 offsets, but our reconstructed subsystem layout is not
byte-identical, so an intermediate 'link' comes out non-null-but-garbage
and *(link+8) AVs. Fires the moment a mech's coolant loop goes active
(source+0x134==1) -- so it would crash the REAL POD too, not just the
dev composite; the brief earlier gauge runs just never activated the
loop. Pre-existing (byte-identical across the BT411 merge), not a merge
regression.
Guard each raw deref (BTPtrReadable via VirtualQuery) so an invalid
chain resolves to the authentic 'no source' branch (0) instead of
faulting. [T3] -- proper fix is named Plug/Link accessors in a
complete-type TU; logged in the KB.
Verified: BT_DEV_GAUGES now survives coolant-loop activation and the
full cockpit MFD suite renders (Heat / weapon-status MFDs / radar /
Comm pilotList).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
CydandClaude Fable 5
cefbc3a686