Mech milestone phase 2: reconstruct PoweredSubsystem (roster layer 4)

Fixes the staged POWERSUB.HPP base (HeatableSubsystem -> HeatSink, the real
hierarchy) and reconstructs PoweredSubsystem: a HeatSink that draws electrical
power. Added members (voltageSource = SubsystemConnection, electricalStateAlarm =
AlarmIndicator(5), modeAlarm = AlarmIndicator(3), input/output/ratedVoltage) and
corrected the resource struct (voltageSourceIndex + thermalResistivityCoefficient
+ startTime). Ctor chains HeatSink and primes the electrical state; statics, dtor,
ResetToInitialState, TestClass/TestInstance real.

The voltage-source resolution (indexing the owner mech's subsystem ROSTER for the
powering generator) + master-instance electrical sim + AttachToVoltageSource are
deferred to the segment-walk phase (phase 4) where the roster is populated -- the
subsystem constructs with no attached source until then. Verified slice now:
MechSubsystem -> HeatableSubsystem -> HeatSink -> PoweredSubsystem. Compile-verified
(BT: 26 ok); tree links clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

restoration/source410/BT/POWERSUB.CPP

@@ -0,0 +1,123 @@
+//===========================================================================//
+// File:	powersub.cpp                                                        //
+// Project: BattleTech           Brick: Mech subsystems                       //
+// Contents: PoweredSubsystem -- a HeatSink drawing electrical power          //
+//---------------------------------------------------------------------------//
+// Copyright (C) 1995, Virtual World Entertainment, Inc.                     //
+// All Rights reserved worldwide                                             //
+// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL               //
+//===========================================================================//
+
+#include <bt.hpp>
+#pragma hdrstop
+
+#if !defined(POWERSUB_HPP)
+#	include <powersub.hpp>
+#endif
+
+#if !defined(MECH_HPP)
+#	include <mech.hpp>
+#endif
+
+//
+//#############################################################################
+// Shared data support
+//#############################################################################
+//
+Derivation
+	PoweredSubsystem::ClassDerivations(
+		HeatSink::ClassDerivations,
+		"PoweredSubsystem"
+	);
+
+PoweredSubsystem::SharedData
+	PoweredSubsystem::DefaultData(
+		PoweredSubsystem::ClassDerivations,
+		Subsystem::MessageHandlers,
+		Subsystem::AttributeIndex,
+		Subsystem::StateCount
+	);
+
+//
+//#############################################################################
+// A HeatSink that draws electrical power from a generator.
+//
+// The voltage-source resolution (indexing the owner mech's SUBSYSTEM ROSTER to
+// find the powering generator) and the master-instance electrical simulation
+// need the roster populated -- which happens during the Mech ctor's
+// segment-table walk -- so they are deferred to that phase (see MECHSUB.NOTES.md).
+// The ctor here chains HeatSink and primes the electrical state; the subsystem
+// constructs with no attached source (inputVoltage 0) until the wiring lands.
+//#############################################################################
+//
+PoweredSubsystem::PoweredSubsystem(
+	Mech				*owner,
+	int					subsystem_ID,
+	SubsystemResource	*subsystem_resource,
+	SharedData			&shared_data
+):
+	HeatSink(owner, subsystem_ID, subsystem_resource, shared_data),
+	voltageSource(),
+	electricalStateAlarm(5),
+	modeAlarm(3)
+{
+	Check(owner);
+	Check_Pointer(subsystem_resource);
+
+	inputVoltage	= 0.0f;
+	outputVoltage	= 0.0f;
+	ratedVoltage	= 0.0f;
+
+	Check_Fpu();
+}
+
+//
+//#############################################################################
+//#############################################################################
+//
+PoweredSubsystem::~PoweredSubsystem()
+{
+}
+
+//
+//#############################################################################
+//#############################################################################
+//
+void
+	PoweredSubsystem::ResetToInitialState(Logical powered)
+{
+	Check(this);
+	HeatSink::ResetToInitialState(powered);
+	inputVoltage	= 0.0f;
+	outputVoltage	= 0.0f;
+	electricalStateAlarm.SetLevel(0);
+	modeAlarm.SetLevel(0);
+}
+
+//
+//#############################################################################
+//#############################################################################
+//
+Logical
+	PoweredSubsystem::TestClass(Mech &)
+{
+	return True;
+}
+
+Logical
+	PoweredSubsystem::TestInstance() const
+{
+	return IsDerivedFrom(ClassDerivations);
+}
+
+//
+//#############################################################################
+// AttachToVoltageSource  Link this subsystem to its powering generator.
+// Deferred with the segment-walk (needs the populated roster).
+//#############################################################################
+//
+void
+	PoweredSubsystem::AttachToVoltageSource(Subsystem *)
+{
+	Fail("PoweredSubsystem::AttachToVoltageSource -- powersub.cpp not yet reconstructed");
+}

restoration/source410/BT/POWERSUB.HPP

@@ -27,9 +27,9 @@
 //###########################################################################
 
 	struct PoweredSubsystem__SubsystemResource:
-		public HeatableSubsystem::SubsystemResource
+		public HeatSink::SubsystemResource
 	{
-		int		voltageSource;
+		int		voltageSourceIndex;
 		Scalar	thermalResistivityCoefficient;
 		int		auxScreenNumber;
 		int		auxScreenPlacement;
@@ -43,7 +43,7 @@
 //###########################################################################
 
 	class PoweredSubsystem:
-		public HeatableSubsystem
+		public HeatSink
 	{
 	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 	// Shared Data Support
@@ -51,7 +51,6 @@
 	public:
 		static Derivation ClassDerivations;
 		static SharedData DefaultData;
-		static MessageHandlerSet MessageHandlers;
 
 	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 	// Test Class Support
@@ -61,6 +60,17 @@
 			TestClass(Mech &);
 		Logical
 			TestInstance() const;
+		void
+			ResetToInitialState(Logical powered);
+
+	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+	// Power support
+	//
+	public:
+		Subsystem*
+			ResolveVoltageSource()	{ return voltageSource.Resolve(); }
+		void
+			AttachToVoltageSource(Subsystem *source);
 
 	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 	// Construction and Destruction
@@ -92,9 +102,12 @@
 	// Local Data
 	//
 	protected:
-		Scalar	inputVoltage;
+		Scalar				inputVoltage;
-		Scalar	outputVoltage;
+		Scalar				outputVoltage;
-		Scalar	ratedVoltage;
+		Scalar				ratedVoltage;
+		SubsystemConnection	voltageSource;
+		AlarmIndicator		electricalStateAlarm;
+		AlarmIndicator		modeAlarm;
 	};
 
 #endif