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Wire ToggleCooling (msg 3): restore the coolant on/off button + handler chain

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Coolant priority (Lynx: weapon MFD -> Display -> Coolant) was unreachable: the
ToggleCooling handler (@004ad6f8, HeatableSubsystem table @0x50E41C id 3) was
undefined AND the handler chain skipped it -- PoweredSubsystem::GetMessageHandlers
chained straight to the Receiver root, bypassing HeatSink/HeatableSubsystem, so a
weapon's dispatch never saw id 3.

Reconstructed ToggleCooling from the disassembly (tools/disas2.py 0x4ad6f8): a
per-subsystem coolant on/off TOGGLE -- novice-locked (owner->BTPlayer->
roleClassIndex+0x274==0, the same guard as MoveValve), press-only, then flip
coolantAvailable(+0x134) 0<->1 and coolantFlowScale(+0x15C) 0.0f<->1.0f.  Cutting a
system's cooling frees the shared loop for the rest -- the emergent "coolant
priority" (the mechanism is a toggle, not a multi-level cycle).

- heat.hpp / heatfamily_reslice.cpp: HeatSink::ToggleCoolingMessageHandler (id 3)
  + HeatSink::GetMessageHandlers.  Registered at HeatSink (the abstract
  HeatableSubsystem never instantiates; every concrete heatable subsystem is a
  HeatSink, where the coolant fields live) -- identical coverage to the binary's
  base-table registration, no downcast.
- powersub.cpp + Condenser/Reservoir: chain their handler sets through
  HeatSink::GetMessageHandlers so id 3 reaches every heatable subsystem.
- mech4.cpp: BT_COOLTOGGLE_TEST scripted inject (dispatch id 3 to the first weapon)
  for verification.

Verified (BT_COOLTOGGLE_TEST + BT_COOL_LOG, expert egg): "[cool] PPC_1 ToggleCooling
reached" then coolant OFF(flow 0.0) <-> ON(flow 1.0) each press -- chain routes,
handler toggles, novice guard honored.  Both build/ + build-glass/ compile clean;
existing ids 4-8 unaffected (found before id 3).  NEXT: the #2 MFD button routing.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
arcattack
2026-07-20 23:04:04 -05:00
co-authored by Claude Opus 4.8
parent cae616dc7c
commit cbc5ff9532
5 changed files with 126 additions and 4 deletions
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game/reconstructed/mech4.cpp
+28
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@@ -5585,6 +5585,34 @@ void
}
}
// #1 verify (BT_COOLTOGGLE_TEST): dispatch ToggleCooling (id 3) to the
// first weapon every ~2s so BT_COOL_LOG shows the on/off toggle -- proves
// the restored PoweredSubsystem->HeatSink chain reaches the Eng-page
// "Coolant" button (the real MFD button routing is the #2 audit).
if (getenv("BT_COOLTOGGLE_TEST") && (Entity *)this == application->GetViewpointEntity())
{
static int s_coolTest = 0;
if ((++s_coolTest % 120) == 0)
{
for (int s = 1; s < GetSubsystemCount(); ++s)
{
Subsystem *sub = GetSubsystem(s);
if (sub == 0)
continue;
int cid = (int)sub->GetClassID();
if (cid == 0xBC8 || cid == 0xBCA || cid == 0xBCE || cid == 0xBD0 || cid == 0xBD4)
{
ReceiverDataMessageOf<ControlsButton> msg(
3 /*HeatSink::ToggleCoolingMessageID*/,
sizeof(ReceiverDataMessageOf<ControlsButton>),
(ControlsButton)1 /*press*/);
sub->Dispatch(&msg);
break;
}
}
}
}
// task #6 dev harness: the config-session BRACKET. 'G' edge ->
// dispatch ConfigureMappables (id 9) press/release to the selected
// weapon -- the exact ReceiverDataMessageOf<ControlsButton> payload