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>
228 lines
8.0 KiB
C++
228 lines
8.0 KiB
C++
//===========================================================================//
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// File: sensor.hpp //
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// Project: BattleTech //
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// Contents: Sensor subsystem //
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//---------------------------------------------------------------------------//
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// Date Who Modification //
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// -------- --- ---------------------------------------------------------- //
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// 8/10/95 GDU Initial coding. //
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//---------------------------------------------------------------------------//
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// Copyright (C) 1995, Virtual World Entertainment, Inc. All Rights reserved //
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// PROPRIETARY AND CONFIDENTIAL //
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//===========================================================================//
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//
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// This declaration is the SURVIVING SENSOR.HPP
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// (410SRC/.../CODE/BT/BT/SENSOR.HPP) reproduced verbatim, with reconstruction
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// annotations added in comments only. The class body below is GROUND TRUTH;
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// the @ADDR / @offset notes were recovered from the shipped binary and tie
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// each declaration to the evidence used in sensor.cpp.
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//
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// Recovered binary facts (see sensor.cpp for per-method @ADDR evidence):
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// - Sensor IS-A PoweredSubsystem (powersub.hpp), object size 0x328.
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// - vtable @0050fb0c ctor @004b1d18 dtor @004b1d90
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// - DefaultData @0050fa1c ClassDerivations @0050fa2c
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// - AttributePointers @0050fa50 (three IndexEntry records, see below)
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// - RegisteredClass::SensorClassID == 0x0BC3 (resource +0x20),
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// streamed model size 0x190 (resource +0x24 -- same record as
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// PoweredSubsystem; the Sensor resource adds no fields).
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//
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// IMPORTANT CONFLICT NOTE: the prior powersub.cpp/CLASSMAP reconstruction
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// labelled the class at vtable @0050fb0c / ctor @004b1d18 "Myomers" with
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// inferred members outputVoltage/powered/voltageAvailable. That was a
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// misidentification. The shipped attribute string pool (@0050fae0:
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// "Sensor", "RadarPercent", "SelfTest", "BadVoltage") and the surviving
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// SENSOR.HPP prove the class is Sensor. classID 0xBC3 is Sensor, not
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// Myomers. See CLASSMAP.md "Resolved conflict".
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//
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#if !defined(SENSOR_HPP)
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# define SENSOR_HPP
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#if !defined(POWERSUB_HPP)
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#include "powersub.hpp"
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#endif
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//##########################################################################
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//################# SensorSubsystemResource #######################
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//##########################################################################
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//
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// Empty extension of the PoweredSubsystem resource. Confirmed by
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// CreateStreamedSubsystem @004b1dcc, which only chains to
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// PoweredSubsystem::CreateStreamedSubsystem (@004b13ac) and stamps the
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// classID/model-size -- it parses NO sensor-specific fields, and the streamed
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// model size is 0x190 (identical to the PoweredSubsystem record).
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//
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struct Sensor__SubsystemResource:
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public PoweredSubsystem::SubsystemResource
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{
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};
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//##########################################################################
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//########################## Sensor ###############################
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//##########################################################################
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class Sensor:
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public PoweredSubsystem
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{
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Death and Damage Support
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//
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// NOTE: the Sensor vtable @0050fb0c carries the inherited (PoweredSubsystem
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// / HeatSink) addresses in the damage/death slots -- no Sensor-specific
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// bodies were captured in the decomp. The definitions in sensor.cpp are
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// BEST-EFFORT (chain to base) and flagged accordingly.
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//
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public:
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void
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TakeDamage(Damage &damage);
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void
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DeathReset(Logical full_recovery);
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Shared Data Support
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//
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// DefaultData @0050fa1c, ClassDerivations @0050fa2c.
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//
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public:
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static Derivation ClassDerivations;
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static SharedData DefaultData;
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static Receiver::MessageHandlerSet MessageHandlers;
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// BT segment / base-state compatibility shims.
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//
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// CROSS-FAMILY: these accessors and segment-flag constants logically belong
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// on the shared bases (Mech::GetSegmentFlags, HeatSink::HeatStateLevel /
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// HeatModelOff / heatEnergy, PoweredSubsystem::ElectricalStateLevel) plus a
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// real multi-level AlarmIndicator. Until the heat/powersub/mech families
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// expose them, they are backed locally here so this module compiles; the
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// backing fields are written by the (cross-family) base simulation once the
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// real accessors land. See report "CROSS-FAMILY NEEDS".
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//
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#if !defined(BT_SEGMENT_FLAG_CONSTS)
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# define BT_SEGMENT_FLAG_CONSTS
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enum {
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SegmentCopyMask = 0x0C, // (flags & 0xC): 0 == primary, 4 == damaged copy
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SegmentLiveFlag = 0x01,
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MasterHeatSinkFlag = 0x0100
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};
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#endif
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public:
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Word
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GetSegmentFlags() const { return segmentFlags; }
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HeatSink::HeatState
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HeatStateLevel() const { return heatStateLevel; }
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Logical
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HeatModelOff() const { return heatModelOff; }
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Scalar
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HeatMasterEnergy() const { return heatEnergy; } // own inherited sink
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PoweredSubsystem::ElectricalState
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ElectricalStateLevel() const { return electricalState; }
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void
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SetHasPerformanceFlag() { hasActivePerformance = True; }
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protected:
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Word segmentFlags; // @this[0x28]/segment flags (Mech-supplied)
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Logical hasActivePerformance;
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HeatSink::HeatState heatStateLevel; // heatAlarm level (cross-family base)
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Logical heatModelOff; // thermal model disabled flag
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PoweredSubsystem::ElectricalState electricalState; // electricalStateAlarm level
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Attribute Support
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//
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// Recovered IndexEntry table @0050fa50 (one {nameptr, attribID, offset+1}
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// record each). The offset field is encoded as (byte_offset | 1):
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// RadarPercent -> id 0x12, 0x31d => radarPercent @0x31C
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// SelfTest -> id 0x13, 0x321 => selfTest @0x320
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// BadVoltage -> id 0x14, 0x325 => badVoltage @0x324
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// (PoweredSubsystem::NextAttributeID == 0x12, so the enum below resolves to
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// RadarPercent=0x12, SelfTest=0x13, BadVoltage=0x14, NextAttributeID=0x15.)
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//
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public:
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enum {
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RadarPercentAttributeID = PoweredSubsystem::NextAttributeID,
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SelfTestAttributeID,
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BadVoltageAttributeID,
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NextAttributeID
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};
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private:
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static const IndexEntry AttributePointers[];
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protected:
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static AttributeIndexSet AttributeIndex;
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public:
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Scalar
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radarPercent; // @0x31C ctor init 1.0f
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Logical
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selfTest, // @0x320 ctor init 0
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badVoltage; // @0x324 ctor init 0
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//##########################################################################
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// Simulation Support
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//
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public:
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typedef void
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(Sensor::*Performance)(Scalar time_slice);
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void
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SetPerformance(Performance performance)
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{
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Check(this);
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activePerformance = (Simulation::Performance)performance;
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}
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void
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SensorSimulation(Scalar time_slice); // @004b1c4c (Performance, PTR @0050fa94)
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//##########################################################################
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// Test Class Support
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//
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public:
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static Logical
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TestClass(Mech&);
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void
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ResetToInitialState(); // slot 10, @004b1c18
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//##########################################################################
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// Construction and Destruction
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//
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public:
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typedef Sensor__SubsystemResource SubsystemResource;
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Sensor(
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Mech *owner,
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int subsystem_ID,
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SubsystemResource *subsystem_resource
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); // @004b1d18
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~Sensor(); // @004b1d90
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Logical
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TestInstance() const; // @004b1e18
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static int
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CreateStreamedSubsystem( // @004b1dcc
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NotationFile *model_file,
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const char *model_name,
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const char *subsystem_name,
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SubsystemResource *subsystem_resource,
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NotationFile *subsystem_file,
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const ResourceDirectories *directories,
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int passes = 1
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);
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};
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#endif
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