Joe DiPrimaandClaude Fable 5
62fc8409b6
arc measured live BT_FORCE_SEEK=<idx> pins the seek gear in MyomersSimulation (env-gated bench; the eng-page toggle stays the authentic path) -- the supercharge loop was unreachable on a headless rig. Measured (Black Hawk, WALLTEST, full autodrive at gear 4): - cold: drive=1.42843 (exactly 0.9999/0.7), demand 87.85, actual run speed 53.7 u/s = 193 kph -- SUPERCHARGE (Oracle's pod figure: 182 for a 75-tonner; the 60t Black Hawk runs faster); - heat at ratio^2 = 2.04: myomer T 531 -> 1765 (deep past the 1000 degradation line); - heatFactor governor: drive 1.43 -> 1.10 -> 0.62 (the supercharged mech slows BELOW normal while cooked), coolant pulls T back (1765 -> 740), drive recovers to ~0.77, oscillates -- the mech self-settles into a thermally-limited cruise: 'top speed for less than a minute' exactly; - the hard freeze (drive -> 0: demand AND turn zeroed) is the same code path past failure temp, reachable when the coolant loop is compromised. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019Zh7PTkFy4KwTzVighLR9J
849 lines
41 KiB
C++
849 lines
41 KiB
C++
//===========================================================================//
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// File: myomers.cpp //
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// Project: BattleTech Brick: Entity Manager //
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// Contents: Myomers subsystem implementation (mech artificial-muscle drive). //
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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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// RECONSTRUCTED from BTL4OPT.EXE. No source or header survived; this file is
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// rebuilt from the decompiled cluster @0x4b8a48 .. @0x4b95b8 (Ghidra
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// pseudo-C in recovered/all/part_013.c), the vtable @005117dc, the attribute
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// IndexEntry table @00511588 and the string pool @00511660. Each method
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// carries its @ADDR and the binary evidence used.
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//
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// --------------------------------------------------------------------------
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// LOCATION / IDENTITY (all proven):
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// Class name "Myomers" string @0051166d
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// ClassID 0x0BC6 stamped by CSS @004b9140 (resource +0x20)
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// model size 0x1B0 stamped by CSS @004b9140 (resource +0x24)
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// object size 0x358 Mech factory case 0xBC6 (part_012.c:10069)
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// vtable @005117dc set by ctor @004b8fec
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// ctor @004b8fec dtor @004b9114
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// CSS @004b9140 DefaultData @0051154c
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// base PoweredSubsystem (ctor @004b0f74 called with &DAT_0051154c)
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//
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// CORRECTION vs powersub.cpp: powersub's "Myomers" (vtable 0050fb0c / ctor
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// 4b1d18 / classID 0xBC3, members outputVoltage/powered/voltageAvailable)
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// was a MISLABEL of **Sensor** (now sensor.cpp). Retire that naming. The
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// real Myomers is here, classID 0xBC6. See CLASSMAP.md.
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// --------------------------------------------------------------------------
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//
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// CONFIDENCE
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// confident : class identity, base, ClassID/size, vtable slot mapping,
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// member layout (every member is backed by the @00511588
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// attribute table or by a ctor store), resource layout
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// (every field is backed by a CSS parse @004b9140),
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// ctor/dtor/CSS/HandleMessage/ResetToInitialState/
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// AvailableOutput/RegisterMaxOutput/HasAdequateVoltage/
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// ConnectToMover/DisconnectFromMover bodies.
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// best-effort : MyomersSimulation (@004b8d18) is the per-tick Performance
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// (only reachable via function pointer; SetPerformance call
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// site not captured -- see note); [slot 15 @004b8f94 RESOLVED
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// issue #11: SeekVoltageResponse -- the SeekVoltageGraph
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// sampler, sqrt not fabs]; ToggleSeekVoltage (@004b8a48) not present
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// in the decompiled shards; the heat-base field @0x150 and
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// graphic-state block (this[7..9]) inherit-pattern stores.
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// excluded : @0x4b7f94..@0x4b881c (gimbal / torso-horizon display, base
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// 4b18a4, DAT_00511228) -- adjacent cluster, NOT Myomers.
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// @0x4b95ec MechWeapon abstract-sim trap -- next class.
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// All inherited PoweredSubsystem/HeatSink/Subsystem vtable
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// slots (1-8, 11-14) are inherited, not redefined here.
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//
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#include "myomers.hpp" // FIRST: neutralizes powersub.hpp's stale 'Myomers'
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#include <bt.hpp> // engine aggregate: NotationFile / NameList / Generator / ...
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#pragma hdrstop
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#if !defined(APP_HPP)
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# include <app.hpp>
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#endif
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#if !defined(TESTBT_HPP)
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# include <testbt.hpp>
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#endif
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#include <math.h> // fabs (speed-gauge magnitude)
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//===========================================================================
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// Shared Data Support (DefaultData @0051154c, ClassDerivations near it)
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//
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// Standard 4-arg Subsystem::SharedData boilerplate (cf. sensor.cpp):
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// ClassDerivations / MessageHandlers / AttributeIndex are defined BEFORE
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// DefaultData, which takes their address/reference.
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//===========================================================================
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Derivation
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Myomers::ClassDerivations(
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PoweredSubsystem::GetClassDerivations(), // returns Derivation* (no &)
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"Myomers"
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);
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// task #14: the REAL shared data. The old empty static
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// MessageHandlers/AttributeIndex meant (a) no inherited message handlers
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// (the powered ids 4-8 among them), (b) an EMPTY UNCHAINED attribute index --
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// even CurrentTemperature/InputVoltage resolved NULL on Myomers instances, so
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// the Myomer engineering panel's cluster children were silently blank. Both
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// now chain PoweredSubsystem's sets, and the SEVEN binary attributes
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// (IndexEntry table @00511588) are published. Function-local statics per the
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// static-init-order rule (reconstruction-gotchas #9).
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Receiver::MessageHandlerSet&
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Myomers::GetMessageHandlers()
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{
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// issue #19 (2026-07-21): register the binary's Myomers handler table
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// @0x51158C {9, "ToggleSeekVoltage" -> @004b8a48} on top of the inherited
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// powered ids -- the id was unregistered, so the ADV-mode seek-gear press
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// was silently swallowed (Receiver::Receive NullHandler).
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static const Receiver::HandlerEntry entries[]=
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{
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MESSAGE_ENTRY(Myomers, ToggleSeekVoltage) // id 9 @004b8a48
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};
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static Receiver::MessageHandlerSet messageHandlers(
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ELEMENTS(entries), entries,
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PoweredSubsystem::GetMessageHandlers()); // copy-inherit (ids 4-8)
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return messageHandlers;
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}
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Myomers::AttributeIndexSet&
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Myomers::GetAttributeIndex()
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{
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static const Myomers::IndexEntry entries[]=
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{
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ATTRIBUTE_ENTRY(Myomers, SpeedEffect, speedEffect), // 0x12 @0x31C
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ATTRIBUTE_ENTRY(Myomers, CurrentSeekVoltageIndex, currentSeekVoltageIndex), // 0x13 @0x320
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ATTRIBUTE_ENTRY(Myomers, RecommendedSeekVoltageIndex, recommendedSeekVoltageIndex), // 0x14 @0x324
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ATTRIBUTE_ENTRY(Myomers, MinSeekVoltageIndex, minSeekVoltageIndex), // 0x15 @0x328
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ATTRIBUTE_ENTRY(Myomers, MaxSeekVoltageIndex, maxSeekVoltageIndex), // 0x16 @0x32C
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ATTRIBUTE_ENTRY(Myomers, SeekVoltage, seekVoltage), // 0x17 @0x330 (array base)
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ATTRIBUTE_ENTRY(Myomers, OutputVoltage, outputVoltage) // 0x18 @0x344
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};
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static Myomers::AttributeIndexSet attributeIndex(
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ELEMENTS(entries), entries,
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PoweredSubsystem::GetAttributeIndex()
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);
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return attributeIndex;
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}
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Myomers::SharedData
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Myomers::DefaultData(
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&Myomers::ClassDerivations,
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Myomers::GetMessageHandlers(),
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Myomers::GetAttributeIndex(),
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Myomers::StateCount
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);
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//===========================================================================
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// Recovered float constants (section_dump.txt)
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// _DAT_004b8b94 = 0.0f _DAT_004b8b98 = 1.0f
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// _DAT_004b8ee4 = 0.5f _DAT_004b8ee8 = 0.0f _DAT_004b8eec = 1.0f
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// _DAT_004b9110 = -1.0f (SeekVoltage list sentinel)
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// _DAT_004b9470 = -1.0f (efficiency "missing" sentinel)
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//===========================================================================
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//***************************************************************************
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// Myomers::Myomers @004b8fec
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//***************************************************************************
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//
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// Chains to PoweredSubsystem::PoweredSubsystem (@004b0f74) with the Myomers
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// DefaultData (&DAT_0051154c), then installs vtable @005117dc and builds the
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// drive table. Field-store evidence (this[idx] -> byte offset):
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//
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// this[199]=0x3f800000 speedEffect@0x31C = 1.0f
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// this[0xd2]=fail-degrade heatRange@0x348 = failureTemp(@0x11C) - degradationTemp(@0x118)
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// this[0xd3]=range*range heatRangeSquared@0x34C = heatRange * heatRange
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// this[0xd4]=res+0x190 velocityEfficiency@0x350
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// this[0xd5]=res+0x194 accelerationEfficiency@0x354
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// this[0x54]=0x3e19999a heat-base field @0x150 = 0.15f (best-effort; inherited HeatSink coeff)
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// this[10]|=8 Subsystem flags @0x28 |= 8
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// (cond) this[7..9] = graphic-state PTR_LAB_00511620 / DAT_00511624 / DAT_00511628
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// when (flags@0x28 & 0xC)==0 && (flags & 0x100)!=0 (inherited render hook)
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//
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// seek-voltage table: source = FUN_00417ab4(this+0x1D0) resolves the
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// VoltageSource connection to its Generator; the resource SeekVoltage[]
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// fractions (res+0x198) are multiplied by the Generator's ratedVoltage
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// (source+0x1D8) and stored into seekVoltage[]@0x330, stopping at the -1.0
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// sentinel. maxSeekVoltageIndex@0x32C = (count-1).
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// recommendedSeekVoltageIndex@0x324 = res+0x1AC; currentSeekVoltageIndex@0x320
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// is seeded to the same; minSeekVoltageIndex@0x328 = 0.
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//
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Myomers::Myomers(
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Mech *owner,
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int subsystem_ID,
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SubsystemResource *resource,
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SharedData &shared_data)
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: PoweredSubsystem(owner, subsystem_ID, resource, shared_data) // @004b0f74, &DAT_0051154c
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{
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// vtable @005117dc installed by the compiler here.
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speedEffect = 1.0f; // @0x31C
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heatRange = failureTemperature - degradationTemperature; // @0x348 (this[0x11C]-this[0x118])
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heatRangeSquared = heatRange * heatRange; // @0x34C
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velocityEfficiency = resource->velocityEfficiency; // @0x350 res+0x190
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accelerationEfficiency = resource->accelerationEfficiency; // @0x354 res+0x194
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// (heat-base default coefficient @0x150 = 0.15f; inherited HeatSink slot)
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// (Subsystem flags @0x28 |= 8; optional graphic-state hook -- see header note)
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// (WAVE 6 de-shim) the owner*/damageStructure shim backing fields are gone --
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// their accessors return neutral defaults directly. The mover handle lives at
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// base+0x110 (not a Myomers own field); the coupling is inert, so no init here.
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// Register the per-tick Performance. NB [0x511620] resolves to @004b8b9c,
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// the WRAPPER (which calls PoweredSubsystemSimulation @0x4b0bd0 first and
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// then the drive-heat integrator @004b8d18) -- our MyomersSimulation plays
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// the wrapper's role and chains the base itself; see the note on its body.
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// The binary ctor @004b8fec stores that
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// pointer-to-member into activePerformance (this[7..9] =
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// PTR_LAB_00511620 / DAT_00511624 / DAT_00511628) under the live-master
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// guard (owner segment flags & 0xC)==0 && (flags & 0x100) -- the exact same
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// shape as the Gyroscope/Torso ctors (gyro this[7..9]=PTR_FUN_0050fe08,
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// torso this[7..9]=PTR_FUN_00510c10). The earlier reconstruction mislabeled
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// this store a "graphic-state hook" and omitted the registration, leaving
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// activePerformance at the DoNothingOnce default (drops out after frame 1).
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// (WAVE 6) the segmentFlags shim is removed; the gate reads OWNER
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// simulationFlags (param_2+0x28) directly -- the oracle-verified source.
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if ((owner->simulationFlags & SegmentCopyMask) == 0
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&& (owner->simulationFlags & MasterHeatSinkFlag) != 0) // owner flags & 0x100 (binary @004b8fec)
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{
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SetPerformance(&Myomers::MyomersSimulation); // this[7..9] = &MyomersSimulation
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}
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// Resolve the powering Generator (PoweredSubsystem::ResolveVoltageSource,
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// FUN_00417ab4(this+0x1D0)) and build the seek-voltage drive table by
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// scaling each resource fraction by the Generator's rated voltage.
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Generator *source = (Generator *)ResolveVoltageSource(); // this+0x1D0 -> Generator
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Scalar srcRated = (source != 0) ? source->ratedVoltage : 0.0f; // source+0x1D8
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maxSeekVoltageIndex = -1;
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int count = 0;
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while (count < 5) {
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if (resource->seekVoltage[count] == -1.0f /*_DAT_004b9110*/) {
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maxSeekVoltageIndex = count - 1; // @0x32C
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break;
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}
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seekVoltage[count] = resource->seekVoltage[count]
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* srcRated; // @0x330[count] (source+0x1D8)
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++count;
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}
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if (maxSeekVoltageIndex < 0)
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maxSeekVoltageIndex = count - 1; // list filled all 5 slots
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recommendedSeekVoltageIndex = resource->seekVoltageRecommendedIndex; // @0x324 res+0x1AC
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currentSeekVoltageIndex = recommendedSeekVoltageIndex; // @0x320
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minSeekVoltageIndex = 0; // @0x328
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}
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//***************************************************************************
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// Myomers::~Myomers @004b9114
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//***************************************************************************
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// vtable slot 0. Thin; chains to the PoweredSubsystem chain.
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Myomers::~Myomers()
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{
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}
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//***************************************************************************
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// Myomers::CreateStreamedSubsystem @004b9140
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//***************************************************************************
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//
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// Chains to PoweredSubsystem::CreateStreamedSubsystem (@004b13ac) for the
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// shared electrical/thermal fields, then:
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// * stamps resource+0x20 = 0x0BC6 (MyomersClassID),
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// resource+0x24 = 0x1B0 (streamed model size).
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// * on first pass (passes==1) initialises VelocityEfficiency / Acceleration-
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// Efficiency (res+0x190/+0x194) to -1.0, the 5 SeekVoltage slots
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// (res+0x198..) to -1.0, and SeekVoltageRecommendedIndex (res+0x1AC) to -1.
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// * parses "VelocityEfficiency" -> res+0x190 (missing/-1.0 -> error)
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// * parses "AccelerationEfficiency" -> res+0x194 (missing/-1.0 -> error)
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// * parses the "SeekVoltage" notation list: each child either sets
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// "SeekVoltageRecommendedIndex" (res+0x1AC) or appends a SeekVoltage
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// fraction (res+0x198..); a missing list or missing recommended index is
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// an error.
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//
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int Myomers::CreateStreamedSubsystem(
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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 *resource,
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NotationFile *subsystem_file,
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const ResourceDirectories *directories,
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int passes)
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{
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if (!PoweredSubsystem::CreateStreamedSubsystem(model_file, model_name,
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subsystem_name, resource, subsystem_file, directories, passes))
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return False; // @004b13ac
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resource->subsystemModelSize = sizeof(*resource); // resource +0x24 (0x1B0)
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resource->classID = (RegisteredClass::ClassID)0x0BC6; // resource +0x20 (MyomersClassID)
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if (passes == 1) {
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resource->velocityEfficiency = -1.0f; // +0x190
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resource->accelerationEfficiency = -1.0f; // +0x194
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for (int i = 0; i < 5; ++i)
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resource->seekVoltage[i] = -1.0f; // +0x198..
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resource->seekVoltageRecommendedIndex = -1; // +0x1AC
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}
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// "VelocityEfficiency" / "AccelerationEfficiency" -- required scalars.
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if (!subsystem_file->GetEntry(model_name, "VelocityEfficiency",
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&resource->velocityEfficiency) // s_VelocityEfficiency_00511709
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&& resource->velocityEfficiency == -1.0f) {
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// Warning: "<subsystem> Missing VelocityEfficiency!" (0051171c)
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return False;
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}
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if (!subsystem_file->GetEntry(model_name, "AccelerationEfficiency",
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&resource->accelerationEfficiency) // s_AccelerationEfficiency_00511739
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&& resource->accelerationEfficiency == -1.0f) {
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// Warning: "<subsystem> Missing AccelerationEfficiency!" (00511750)
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return False;
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}
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// "SeekVoltage" notation list: each child either sets the recommended index
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// or appends a seek-voltage fraction (up to 5). (00511771)
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NameList *list = subsystem_file->MakeEntryList(model_name, "SeekVoltage");
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if (list == 0 && resource->seekVoltageRecommendedIndex == -1) {
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// Warning: "<model> missing SeekVoltage " (0051177d)
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} else if (list != 0) {
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Scalar *out = resource->seekVoltage; // +0x198
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Scalar *end = resource->seekVoltage + 5;
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for (NameList::Entry *node = list->GetFirstEntry();
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node != 0;
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node = node->GetNextEntry())
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{
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if (strcmp(node->GetName(), "SeekVoltageRecommendedIndex") == 0) // 00511793
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resource->seekVoltageRecommendedIndex = node->GetAtoi(); // -> +0x1AC
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else if (out < end)
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*out++ = (Scalar)node->GetAtof(); // append fraction
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}
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delete list;
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if (resource->seekVoltageRecommendedIndex == -1) {
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// Warning: "<model> missing SeekVoltageRecommendedIndex!" (005117af)
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return False;
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}
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}
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return True;
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}
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|
|
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//***************************************************************************
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// Myomers::AvailableOutput @004b8ac0
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//***************************************************************************
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//
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// Core drive computation: returns the locomotion drive available for a given
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// input voltage. (helper; called by RegisterMaxOutput and SeekVoltageResponse.)
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//
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// base = ownerMech[0x34C] * (input_voltage / seekVoltage[recommendedIndex])
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// ^ Mech base-speed scalar ^ normalise to the recommended gear
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//
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// heatFactor (thermal degradation, mirrors the other PoweredSubsystem leaves):
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// if currentTemp >= degradationTemp:
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// if currentTemp >= failureTemp -> 0.0 (burned out)
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// else d = currentTemp - degradationTemp;
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// heatFactor = (base==0)? 1.0 : 1.0 - d*d/heatRangeSquared
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// else -> 1.0 (cold, full drive)
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//
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// return (1.0 - damage[0x158]) * base * heatFactor;
|
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// ^ accumulated damage/wear (this[0xE0]->structureLevel@0x158) bleeds off output.
|
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//
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Scalar Myomers::AvailableOutput(Scalar input_voltage)
|
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{
|
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Scalar base = OwnerBaseSpeed() // *(Mech@this[0xD0] + 0x34C)
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* (input_voltage / seekVoltage[recommendedSeekVoltageIndex]); // @0x330[@0x324]
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|
|
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Scalar heatFactor;
|
|
if (degradationTemperature <= currentTemperature) { // 0x118 <= 0x114
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|
if (failureTemperature <= currentTemperature) { // 0x11C <= 0x114
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heatFactor = 0.0f;
|
|
} else {
|
|
Scalar d = currentTemperature - degradationTemperature;
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|
heatFactor = (base == 0.0f)
|
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? 1.0f
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|
: (base - d * d * (base / heatRangeSquared)) / base; // == 1 - d*d/heatRangeSquared
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}
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} else {
|
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heatFactor = 1.0f;
|
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}
|
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Scalar damage = DamageStructureLevel(); // *(this[0xE0] + 0x158)
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return (1.0f - damage) * base * heatFactor; // _DAT_004b8b98 = 1.0
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}
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|
|
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//***************************************************************************
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// Myomers::RegisterMaxOutput @004b8ef0
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//***************************************************************************
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//
|
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// Computes this myomer's full-throttle drive (AvailableOutput at the top gear
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|
// seekVoltage[maxSeekVoltageIndex]) and raises the owner Mech's top-speed
|
|
// field (Mech[0x7A0]) to it. Called once per myomer while the Mech is being
|
|
// assembled (loop @part_012.c:10322 over the Mech's myomer list @0x1EB).
|
|
//
|
|
void Myomers::RegisterMaxOutput()
|
|
{
|
|
Scalar best = AvailableOutput(seekVoltage[maxSeekVoltageIndex]); // @0x330[@0x32C]
|
|
if (best > OwnerMaxSpeed()) // Mech[0x7A0]
|
|
SetOwnerMaxSpeed(best);
|
|
}
|
|
|
|
|
|
//***************************************************************************
|
|
// Myomers::SeekVoltageResponse slot 15 @004b8f94
|
|
//***************************************************************************
|
|
//
|
|
// PoweredSubsystem virtual slot 15 (base @004b1780) == the shared subsystem
|
|
// vtbl+0x3C sampler the SeekVoltageGraph's Execute (@004c6934) plots -- THIS
|
|
// is what draws the myomer engineering page's POWER curve (issue #11; the
|
|
// old "drives a cockpit speed gauge" guess and the GetSpeedReading name are
|
|
// retired). Converts AvailableOutput(input_voltage) into the graph's 0..1
|
|
// x-response: scaled by 3.6 (m/s -> km/h), normalised to a 350 km/h full
|
|
// scale, then FUN_004dd138 == SQRT (part_015.c:4026 -- the old "fp magnitude
|
|
// / fabs" reading was wrong; sqrt is also what Emitter's analog @004bb42c
|
|
// applies to its power ratio). (Decompiled body discards the result ->
|
|
// returned via FPU.)
|
|
//
|
|
Scalar Myomers::SeekVoltageResponse(Scalar input_voltage)
|
|
{
|
|
Scalar output = AvailableOutput(input_voltage); // @004b8ac0
|
|
Scalar r = (output * 3.6f - 0.0f) / 350.0f;
|
|
// (FUN_004dd138 routes a negative operand to the matherr handler; output
|
|
// >= 0 in practice -- guarded for port safety.)
|
|
return (r > 0.0f) ? (Scalar)sqrt((double)r) : 0.0f; // FUN_004dd138 (sqrt)
|
|
}
|
|
|
|
//***************************************************************************
|
|
// issue #11 bridge -- the Myomers leg of the SeekVoltageGraph sample dispatch
|
|
// (see emitter.cpp BTSeekVoltageSample). Guarded: a non-Myomers subsystem
|
|
// samples 0 (only emitter/myomer pages own a graph in the shipped config).
|
|
//***************************************************************************
|
|
//***************************************************************************
|
|
// BTMyomersSpeedEffectOf -- the myomer drive fraction for the master perf's
|
|
// demand scale (mechmppr.cpp). RESTORED 2026-07-31 (the seek audit): the
|
|
// morning's deletion of the predecessor (BTMyomersDriveOf) rested on an
|
|
// export-gap-blind sweep -- the REAL consumer lives in the un-exported
|
|
// master-perf region @0x4a9cf2-0x4a9da4: MAX speedEffect over the myomer
|
|
// chain -> mech+0x79C -> `mapper->speedDemand *= it` (+ turn freeze at
|
|
// |drive| <= 1e-4). UNCLAMPED (the old bridge's f>1 -> 1 clamp ate the
|
|
// gear-4 overdrive): speedEffect legitimately rides to ~1.43 at seek 4.
|
|
// Returns -1 for a non-Myomers subsystem. [T1 disasm]
|
|
//***************************************************************************
|
|
Scalar BTMyomersSpeedEffectOf(void *subsystem)
|
|
{
|
|
Entity *entity = (Entity *)subsystem;
|
|
if (entity == 0 || !entity->IsDerivedFrom(Myomers::ClassDerivations))
|
|
return -1.0f;
|
|
Scalar f = ((Myomers *)entity)->SpeedEffect();
|
|
return (f > 0.0f) ? f : 0.0f;
|
|
}
|
|
|
|
Scalar BTMyomersSeekSample(void *subsystem, Scalar voltage)
|
|
{
|
|
Entity *entity = (Entity *)subsystem;
|
|
if (entity == 0 || !entity->IsDerivedFrom(Myomers::ClassDerivations))
|
|
return 0.0f;
|
|
return ((Myomers *)entity)->SeekVoltageResponse(voltage); // @004b8f94
|
|
}
|
|
|
|
|
|
//***************************************************************************
|
|
// Myomers::HasVoltage slot 16 @004b8f3c
|
|
//***************************************************************************
|
|
//
|
|
// Override of PoweredSubsystem::HasVoltage (slot 16, base @004b0b5c) -- Gitea
|
|
// #62 rename: the base was misnamed IsSourceShorted, asserting the inverse of
|
|
// what it computes. Myomers tightens it: adequate = at least the SELECTED SEEK
|
|
// voltage, not merely non-zero.
|
|
// Returns True only when the (resolved) voltage source can supply at least
|
|
// the currently-selected seek voltage AND is in the Ready state (state==2).
|
|
//
|
|
// if (source == 0) source = ResolveVoltageSource(); // FUN_00417ab4(this+0x1D0)
|
|
// if (source == 0) return False;
|
|
// return seekVoltage[currentSeekVoltageIndex] <= source->outputVoltage
|
|
// && source->state == 2; // source+0x1DC, source+0x210
|
|
//
|
|
Logical Myomers::HasVoltage(Subsystem *source)
|
|
{
|
|
Generator *gen = source ? (Generator *)source
|
|
: (Generator *)ResolveVoltageSource(); // FUN_00417ab4(this+0x1D0)
|
|
if (gen == 0)
|
|
return False;
|
|
|
|
if (seekVoltage[currentSeekVoltageIndex] <= gen->MeasuredVoltage() // @0x330[@0x320] <= src+0x1DC
|
|
&& gen->GeneratorStateOf() == Generator::GeneratorReady) // src+0x210 == 2
|
|
return True;
|
|
return False;
|
|
}
|
|
|
|
|
|
// The un-powered recovery rate the Performance hands its own damage zone each
|
|
// tick, as a NEGATIVE damageAmount: the literal 0xbc343958 stored at @004b8bf0.
|
|
static const Scalar MyomerRecoveryPerTick = -0.010999999940395355f; // 0xbc343958
|
|
|
|
|
|
//***************************************************************************
|
|
// Myomers::MyomersSimulation Performance @004b8b9c
|
|
//***************************************************************************
|
|
//
|
|
// THE REGISTERED PERFORMANCE -- the outer wrapper, decoded in full 2026-07-28.
|
|
// The ctor's [0x511620] resolves to 0x4b8b9c, NOT 0x4b8d18; the port had
|
|
// registered the inner drive-heat integrator and dropped this whole wrapper.
|
|
// Five blocks, in binary order:
|
|
//
|
|
// @004b8bab chain PoweredSubsystem::PoweredSubsystemSimulation (0x4b0bd0)
|
|
// @004b8bb9 un-powered self-repair of this myomer's own zone (INERT -- see
|
|
// the block comment; the original is dead code here too)
|
|
// @004b8c1e republish outputVoltage@0x344 from the resolved source
|
|
// @004b8c5a republish speedEffect@0x31C, the drive handed to the mover
|
|
// @004b8ceb run the inner integrator -- ONLY when outputVoltage > 0
|
|
//
|
|
// Restoring the first block alone fixed Gitea #70 (torso twist dead after a
|
|
// respawn): the Torso is a PowerWatcher that MIRRORS this subsystem's
|
|
// electrical level, and with the base machine never running, a Myomers that
|
|
// lost power in the death/reset window sat at NoVoltage forever. The other
|
|
// four are the rest of that same dropped wrapper.
|
|
//
|
|
void Myomers::MyomersSimulation(Scalar time_slice)
|
|
{
|
|
// 0. RegisterMaxOutput (@004b8ef0) -- the assembly-time top-speed cap.
|
|
// The binary calls it from the mech-assembly loop over the myomer chain
|
|
// (part_012.c:10322), after the model record is streamed:
|
|
// mech[0x7A0] = max(mech[0x7A0], AvailableOutput(seekVoltage[maxIdx]))
|
|
// = base x (topGear/recGear) = base x ~1.4284 on a healthy assembly --
|
|
// the gait rise-clamp both channels bound against (part_012:12103/12334).
|
|
// The port's capability-chain fill is the SubProxy stub (same situation as
|
|
// the flush's chain walk), so each myomer registers ITSELF here. Called
|
|
// per tick instead of once (the 0x358 layout lock leaves no room for a
|
|
// latch member): RegisterMaxOutput is an idempotent max() -- best falls as
|
|
// heat/damage degrade AvailableOutput, and max() never lowers the cap --
|
|
// so the resulting state is identical to the binary's once-at-assembly.
|
|
RegisterMaxOutput(); // @004b8ef0
|
|
|
|
// BENCH (BT_FORCE_SEEK=<idx 0..max>): pin the seek gear without the eng-page
|
|
// button -- the seek-4 supercharge/overheat loop is otherwise unreachable
|
|
// on a headless rig. Env-gated, off by default; the toggle handler stays
|
|
// the authentic path.
|
|
{
|
|
static int s_forceSeek = -2;
|
|
if (s_forceSeek == -2)
|
|
{
|
|
const char *e = getenv("BT_FORCE_SEEK");
|
|
s_forceSeek = (e != 0 && *e != '\0') ? atoi(e) : -1;
|
|
}
|
|
if (s_forceSeek >= 0 && s_forceSeek <= maxSeekVoltageIndex)
|
|
currentSeekVoltageIndex = s_forceSeek;
|
|
}
|
|
|
|
// 1. @004b8bab -- the base electrical state machine. MUST come first, and
|
|
// must precede any heat-model gate: OwnerAdvancedDamage() is off below
|
|
// veteran, so gating ahead of this denied the machine to most pilots.
|
|
PoweredSubsystemSimulation(time_slice); // call 0x4b0bd0
|
|
|
|
// 2. @004b8bb9-0x4b8c1b -- the INTENDED un-powered self-repair. While this
|
|
// myomer has NO VOLTAGE and its own zone is not yet destroyed, hand that
|
|
// zone a NEGATIVE explosive Damage every tick. DamageZone::TakeDamage is
|
|
// T0 (engine/MUNGA/DAMAGE.cpp:374) and reads only damageAmount/damageType:
|
|
// damageLevel += damageAmount * damageScale[damageType];
|
|
// Clamp(damageLevel, 0.0f, 1.0f);
|
|
// so the READING is "a myomer you power down slowly heals, and the `< 1.0`
|
|
// test stops a destroyed zone being resurrected".
|
|
//
|
|
// ⚠ CORRECTION (2026-07-29, #80): the earlier "inert in the original too"
|
|
// note here was WRONG about the original. The 2026-07-28 experiment that
|
|
// froze at 0.6 was measuring a PORT bug: the subsystem ctor wrote the
|
|
// zone's armour/scales through the ReconDamageZone PROXY (struct offsets
|
|
// +4/+8) instead of the engine members at +0x140/+0x144, so the real
|
|
// damageScale[] stayed zero. The binary's ctor (@0x4ac7bb) initializes
|
|
// them from the resource ("WeaponDamagePoints" + the five per-type
|
|
// "...DamagePoints" keys), and the port now does the same -- so this
|
|
// branch is LIVE, in 1995 and here: an un-powered, not-yet-destroyed
|
|
// myomer heals at 0.011 * damageScale[Explosive] per tick.
|
|
// (impactPoint/burstCount are set for fidelity; the callee ignores both.)
|
|
if (electricalStateAlarm.GetLevel() == PoweredSubsystem::NoVoltage // this+0x278 == 1
|
|
&& DamageStructureLevel() < 1.0f) // zone+0x158 < _DAT_004b8d10
|
|
{
|
|
extern int BTMechEntityPosition(void *entity, float *out_xyz); // mech4.cpp
|
|
float ownerXYZ[3] = { 0.0f, 0.0f, 0.0f };
|
|
BTMechEntityPosition(owner, ownerXYZ); // owner+0x100
|
|
|
|
Damage repair; // FUN_0041db7c (Damage::Damage)
|
|
repair.damageType = Damage::ExplosiveDamageType; // +0x00 = 2
|
|
repair.damageAmount = MyomerRecoveryPerTick; // +0x04 = 0xbc343958
|
|
repair.impactPoint.x = ownerXYZ[0]; // +0x20 <- FUN_00408440
|
|
repair.impactPoint.y = ownerXYZ[1];
|
|
repair.impactPoint.z = ownerXYZ[2];
|
|
repair.burstCount = 1; // +0x2C
|
|
ApplyZoneDamage(repair); // zone vtable +0x18
|
|
}
|
|
|
|
// 3. @004b8c1e-0x4b8c5a -- republish the input voltage. (The binary also
|
|
// zeroes +0x344 when simulationState == Destroyed just above this, then
|
|
// overwrites it unconditionally here; that store is dead in the original
|
|
// too, so it is not reproduced.)
|
|
Generator *source = (Generator *)ResolveVoltageSource(); // FUN_00417ab4(this+0x1D0)
|
|
outputVoltage = (electricalStateAlarm.GetLevel() == PoweredSubsystem::Ready
|
|
&& source != 0)
|
|
? source->MeasuredVoltage() // source+0x1DC
|
|
: 0.0f;
|
|
|
|
// 4. @004b8c5a-0x4b8ce8 -- republish speedEffect, the live drive fed to the
|
|
// mover. Clamp the input voltage to the SELECTED gear and then to the top
|
|
// gear, then normalise AvailableOutput by the same Mech base speed it was
|
|
// scaled by -- so speedEffect is a 0..1 FRACTION of full drive carrying the
|
|
// gear ratio, the thermal-degradation curve and the accumulated zone damage.
|
|
if (!HasVoltage(0)) // vtable +0x40 (slot 16)
|
|
{
|
|
speedEffect = 0.0f;
|
|
}
|
|
else
|
|
{
|
|
Scalar drive = outputVoltage; // @0x344
|
|
if (drive >= seekVoltage[currentSeekVoltageIndex]) // @0x330[@0x320]
|
|
drive = seekVoltage[currentSeekVoltageIndex];
|
|
if (drive > seekVoltage[maxSeekVoltageIndex]) // @0x330[@0x32C]
|
|
drive = seekVoltage[maxSeekVoltageIndex];
|
|
speedEffect = AvailableOutput(drive) / OwnerBaseSpeed(); // @004b8ac0 / (owner+0x34C)
|
|
}
|
|
|
|
// BRING-UP SCAFFOLDING (temporary, env-gated, off by default).
|
|
//
|
|
// BT_MYOMERS_REPAIR_TEST=<level> seeds this myomer's OWN zone to <level> once,
|
|
// at frame 300, so the un-powered self-repair above has something to walk
|
|
// back. Nothing else can damage that zone on a bench: unaimed self-damage
|
|
// goes through the mech's hit-location table and never crits a myomer, so
|
|
// block 2 of the Performance would otherwise stay unexercised. Pair it with
|
|
// BT_POWER_DETACH_TEST=Myomers to open the NoVoltage window.
|
|
// Self-contained: it also cuts the voltage link and drops the subsystem into
|
|
// MANUAL, so the AutoConnect hunt does NOT put it straight back (which is
|
|
// what BT_POWER_DETACH_TEST does -- that one re-attaches within a frame or
|
|
// two, far too short a window to watch a repair).
|
|
if (getenv("BT_MYOMERS_REPAIR_TEST"))
|
|
{
|
|
static int s_rtFrame = 0;
|
|
if (++s_rtFrame == 300)
|
|
{
|
|
Scalar seed = (Scalar)atof(getenv("BT_MYOMERS_REPAIR_TEST"));
|
|
if (seed <= 0.0f) seed = 0.5f;
|
|
SetSubsystemDamageLevel(seed); // mechsub.cpp bridge
|
|
DetachFromVoltageSource(); // @004b0e30
|
|
modeAlarm.SetLevel(ManualConnect); // stay dark (no auto-hunt)
|
|
DEBUG_STREAM << "[myo] SEED zone damage = " << seed
|
|
<< ", detached + forced Manual" << std::endl << std::flush;
|
|
}
|
|
}
|
|
|
|
// PROBE (BT_MYOMERS_LOG): the wrapper's outputs. Sample every frame while
|
|
// the electrical state is anything but Ready -- the NoVoltage window is the
|
|
// self-repair window and it only lasts about a second, so a once-a-second
|
|
// probe would step right over the transient.
|
|
if (getenv("BT_MYOMERS_LOG"))
|
|
{
|
|
static int s_ml = 0;
|
|
int notReady = (electricalStateAlarm.GetLevel() != PoweredSubsystem::Ready);
|
|
if (notReady || (s_ml % 120) == 0)
|
|
{
|
|
DEBUG_STREAM << "[myo] " << (GetName() ? GetName() : "?")
|
|
<< " elec=" << (int)electricalStateAlarm.GetLevel()
|
|
<< " outV=" << outputVoltage
|
|
<< " speed=" << speedEffect
|
|
<< " dmg=" << DamageStructureLevel()
|
|
<< " gear=" << currentSeekVoltageIndex
|
|
<< std::endl << std::flush;
|
|
}
|
|
++s_ml;
|
|
}
|
|
|
|
// 5. @004b8ceb -- the drive-heat integrator runs ONLY with voltage present.
|
|
if (outputVoltage > 0.0f) // vs _DAT_004b8d14 (0.0f)
|
|
MyomersDriveHeat(time_slice); // call 0x4b8d18
|
|
}
|
|
|
|
|
|
//***************************************************************************
|
|
// Myomers::MyomersDriveHeat inner @004b8d18
|
|
//***************************************************************************
|
|
//
|
|
// Per-tick drive/heat integration. Reached only from the wrapper above, and
|
|
// only while outputVoltage > 0.
|
|
//
|
|
// Reads the owner Mech's motion state and the seek-voltage ratio, then -- when
|
|
// the sim-control "advanced damage" gate is on (FUN_004ad7d4: *(Mech[0xD0]+0x190)
|
|
// +0x260) -- accumulates mechanical-work heat into the HeatSink heat
|
|
// accumulator @0x1C8:
|
|
//
|
|
// v = |Mech velocity vector| (Mech +0x1C4/0x1C8/0x1CC, magnitude)
|
|
// a = |Mech accel/desired vector| (Mech +0x82C/0x830/0x834, magnitude)
|
|
// vDot= Mech[0x20C] * (dot of the velocity vector with itself) * _DAT_004b8ee4(0.5)
|
|
// ratio = seekVoltage[current]/seekVoltage[recommended], clamped >= 1.0
|
|
// damageGain = 1.0 + damage[0x158]
|
|
// velTerm = (1 - accelerationEfficiency) * |Vy| * Mech[0x20C] * *Mech[0x250] * dt
|
|
// accTerm = (1 - accelerationEfficiency) * |v| * |a| * Mech[0x20C] * dt
|
|
// work = (1 - velocityEfficiency) * vDot
|
|
// heat[0x1C8] += ratio*ratio * damageGain * (velTerm + work + accTerm)
|
|
//
|
|
// (Field roles in the work expression are best-effort; the structure -- heat
|
|
// rises with the square of the gear ratio, with damage, and with the
|
|
// inefficiency complements of VelocityEfficiency/AccelerationEfficiency -- is
|
|
// faithful to the decompiled arithmetic.)
|
|
//
|
|
void Myomers::MyomersDriveHeat(Scalar time_slice)
|
|
{
|
|
if (!OwnerAdvancedDamage()) // FUN_004ad7d4 gate (binary
|
|
return; // gates the ACCUMULATE; same outcome)
|
|
|
|
// #85 fix (2026-07-31): the five Mech motion operands were `return 0.0f`
|
|
// cross-family shims, so this integrator faithfully accumulated ratio^2 *
|
|
// damageGain * ZERO every tick -- the myomers stayed ice cold at any seek
|
|
// (Oracle's night-7 panel-confirmed report). Now sampled for real via the
|
|
// complete-Mech-TU bridge (mech4.cpp), operands re-grounded against the
|
|
// raw disasm of @004b8d18 + the authored resource (BTL4.RES 0x0BC6 records:
|
|
// VelocityEfficiency=0.995, AccelerationEfficiency=0.8, gears
|
|
// 0.3/0.5/0.7/0.9999 rec idx 2 -- one shared tuning across all 18 mechs).
|
|
float velMag, accMag, vy, mass, gravity;
|
|
{
|
|
extern void BTMechMyomerMotionSample(void *mech,
|
|
float *vel_mag, float *acc_mag, float *vel_y,
|
|
float *mass, float *gravity);
|
|
BTMechMyomerMotionSample(owner, &velMag, &accMag, &vy, &mass, &gravity);
|
|
}
|
|
|
|
Scalar velComplement = 1.0f - accelerationEfficiency; // @0x354 (= 0.2 authored)
|
|
Scalar workComplement = 1.0f - velocityEfficiency; // @0x350 (= 0.005 authored)
|
|
Scalar damageGain = 1.0f + DamageStructureLevel(); // this[0xE0]+0x158
|
|
|
|
Scalar ratio = seekVoltage[currentSeekVoltageIndex] // @0x330[@0x320]
|
|
/ seekVoltage[recommendedSeekVoltageIndex];// @0x330[@0x324]
|
|
if (ratio < 1.0f) ratio = 1.0f;
|
|
|
|
// The binary fabs()es all three motion operands (the jbe/fchs pairs
|
|
// @4b8dd5/@4b8df0/@4b8e16); |v| and |a| are sqrt-positive already, but
|
|
// v.y is signed -- descending must heat like climbing, not cool.
|
|
if (vy < 0.0f) vy = -vy;
|
|
|
|
// Physics (operands nailed 2026-07-31): mass@0x20C, gravity=**(0x250) --
|
|
// work = 1/2 m v^2 (kinetic energy; NO dt in the
|
|
// binary -- the accumulate is per-TICK, an authentic 1995
|
|
// fixed-frame assumption, so heat/s scales with frame rate;
|
|
// kept verbatim, field-calibrate if the pod veterans object)
|
|
// velTerm = m g |vy| dt (climb power)
|
|
// accTerm = m |v| |a| dt (acceleration power)
|
|
Scalar work = mass * (velMag * velMag) * 0.5f; // dot(v,v)*0.5 (_DAT_004b8ee4)
|
|
|
|
pendingHeat /* @0x1C8 */ +=
|
|
ratio * ratio * damageGain *
|
|
( velComplement * vy * mass * gravity * time_slice
|
|
+ workComplement * work
|
|
+ velComplement * velMag * accMag * mass * time_slice );
|
|
|
|
if (getenv("BT_MYO_LOG"))
|
|
{
|
|
static int s_n = 0;
|
|
if ((s_n++ % 120) == 0)
|
|
DEBUG_STREAM << "[myoheat] v=" << velMag << " a=" << accMag
|
|
<< " m=" << mass << " g=" << gravity
|
|
<< " ratio=" << ratio << " dmgGain=" << damageGain
|
|
<< " pending=" << pendingHeat << "\n" << std::flush;
|
|
}
|
|
}
|
|
|
|
|
|
//***************************************************************************
|
|
// Myomers::HandleMessage slot 9 @004b8a8c
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//***************************************************************************
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// Thin override; forwards to PoweredSubsystem::HandleMessage (@004b0efc).
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|
Logical Myomers::HandleMessage(int message)
|
|
{
|
|
return PoweredSubsystem::HandleMessage(message); // @004b0efc
|
|
}
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|
|
|
|
|
//***************************************************************************
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|
// Myomers::ResetToInitialState slot 10 @004b8aa4
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|
//***************************************************************************
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|
// Thin override; forwards to PoweredSubsystem::ResetToInitialState (@004b0e6c).
|
|
void Myomers::ResetToInitialState(Logical powered)
|
|
{
|
|
PoweredSubsystem::ResetToInitialState(powered); // @004b0e6c
|
|
}
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|
|
|
|
|
//***************************************************************************
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|
// (ConnectToMover / DisconnectFromMover are DELETED -- myomer-system
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|
// completion, 2026-07-31. Their source functions @004b9550/@004b95b8 are
|
|
// MechWeapon::ConfigureMappables / ChooseButton (the +0x31C there is the
|
|
// weapon TriggerState and **(mech+0x128) is the CONTROLS MAPPER's button
|
|
// roster -- proven by the MECHWEAP.CPP assert string and the trigger-edge
|
|
// detector @004b9608 adjacent in the image). The binary has NO dynamic
|
|
// myomer->mover feed; see the RegisterMaxOutput latch in MyomersSimulation
|
|
// for the real (assembly-time cap) locomotion coupling.)
|
|
//***************************************************************************
|
|
// Myomers::ToggleSeekVoltageMessageHandler @004b8a48
|
|
//***************************************************************************
|
|
// Handler table @0x51158C: {9, "ToggleSeekVoltage"}. Reconstructed FAITHFULLY
|
|
// from the raw disassembly (tools/disas2.py 0x4b8a48; the decomp shards missed
|
|
// the untagged gap 0x4b8837..0x4b8a8c) -- issue #19 fix, 2026-07-21:
|
|
// 0x4b8a50 call 0x4ac9c8 novice lockout (BTPlayerRoleLocksAdvanced) -> ret
|
|
// 0x4b8a5b call 0x4ad7d4 heat-model experience gate -> ret if OFF
|
|
// 0x4b8a68 msg+0xc <= 0 press only (release is negative)
|
|
// 0x4b8a6f idx@0x320 = (idx + 1) % (maxSeekVoltageIndex@0x32C + 1)
|
|
// Note: modulo (max+1) from ZERO -- minSeekVoltageIndex is NOT consulted, and
|
|
// there is no ResetFiringState (both unlike the Emitter sibling @004ba478).
|
|
void Myomers::ToggleSeekVoltageMessageHandler(ReceiverDataMessageOf<int> *message)
|
|
{
|
|
if (IsDamaged()) // FUN_004ac9c8 -- NOVICE lockout bridge
|
|
{
|
|
return;
|
|
}
|
|
if (!HeatModelActive() || message->dataContents <= 0) // FUN_004ad7d4; msg+0xc
|
|
{
|
|
return;
|
|
}
|
|
currentSeekVoltageIndex = // @0x320
|
|
(currentSeekVoltageIndex + 1) % (maxSeekVoltageIndex + 1); // @0x32C
|
|
if (getenv("BT_SEEK_LOG"))
|
|
DEBUG_STREAM << "[seek] " << GetName() << " -> gear "
|
|
<< currentSeekVoltageIndex << std::endl;
|
|
}
|
|
|
|
|
|
//===========================================================================//
|
|
// WAVE 6 -- compile-time OVERFLOW lock (the real class must fit the 0x358
|
|
// factory alloc). Like Sensor, the heat-leaf base (PoweredSubsystem:HeatSink)
|
|
// is NOT byte-exact to the binary, so we lock only the overflow bound, not the
|
|
// exact field offsets -- nothing reads Myomers at a raw offset today (the mover
|
|
// feed + gauge readouts are inert) and MyomersSimulation uses named members.
|
|
// The de-shim dropped the owner*/segmentFlags backing fields to make room.
|
|
//===========================================================================//
|
|
struct MyomersLayoutCheck
|
|
{
|
|
// BYTE-EXACT: with PoweredSubsystem byte-exact (ends 0x31C) and the phantom
|
|
// moverConnection tail removed, Myomers' own fields (ctor @004b8fec: speedEffect@0x31C
|
|
// .. accelerationEfficiency@0x354) land exactly at 0x31C..0x358.
|
|
static_assert(offsetof(Myomers, speedEffect) == 0x31C, "Myomers::speedEffect @0x31C (attr 0x12)");
|
|
static_assert(offsetof(Myomers, seekVoltage) == 0x330, "Myomers::seekVoltage @0x330 (attr 0x17)");
|
|
static_assert(sizeof(Myomers) == 0x358, "sizeof(Myomers) 0x358 (factory alloc, byte-exact)");
|
|
};
|
|
|
|
|
|
//===========================================================================//
|
|
// WAVE 6 factory bridge -- Myomers (factory case 0xBC6, "Actuator" stub).
|
|
// The real class at 0xBC6 (ctor @004b8fec) is Myomers (the mech's artificial-
|
|
// muscle drive); the factory built an Actuator RECON_SUBSYS stub. alloc 0x358.
|
|
// The subsystem constructs (resolves its Generator + builds the seek-voltage
|
|
// gear table) and ticks its real Performance. DRIVE HEAT IS LIVE (#85 fix
|
|
// 2026-07-31: the motion operands are sampled from the real Mech). Still
|
|
// inert: the LOCOMOTION coupling (no-op mover feed -- speedEffect is computed
|
|
// but nothing consumes it; WAVE 6 cutover) and the climb heat term (the
|
|
// environment gravity is unwired in the port, so g reads 0).
|
|
//===========================================================================//
|
|
Subsystem *CreateMyomersSubsystem(Mech *owner, int id, void *seg)
|
|
{
|
|
return (Subsystem *) new (Memory::Allocate(0x358))
|
|
Myomers(owner, id, (Myomers::SubsystemResource *)seg);
|
|
}
|
|
|
|
//
|
|
// DeathReset (#55 step 4) -- the respawn sweep's entry for the Myomers.
|
|
//
|
|
void Myomers::DeathReset(int reset_command)
|
|
{
|
|
ResetToInitialState(reset_command != 0); // @004b8aa4
|
|
}
|