arcattackandClaude Fable 5
02cdfd6576
The MadCat torso twists, the view turns with it, and targeting follows. Three reconstruction fronts closed: THE ELECTRICAL WATCHDOG CHAIN (why the torso never powered up): - PowerWatcher::UpdateWatch reconstructed (@004b181c, the REAL registered Performance -- PTR @0050f5fc; Ghidra missed the fn start): the watchdog MIRRORS the watched subsystem's electrical level (+0x278), brownout downgrade when gen output <= minVoltage% x rated. @004b1804 relabeled ResetToInitialState (slot 10) -- the old "Simulation" tag was wrong. - The factory watcher-CONNECT pass reconstructed (vtable slot +0x38, @004aee2c/@004b1a40 byte-identical, recovered from raw exe bytes): watchedLink.Add(roster[watchedSubsystem]) on the master node. Was the SubProxy::Start() no-op -- every watchdog sat at 0 forever. - MinVoltageScale = 0.01 (a 10-byte x87 literal @0x4b1924; was 1.0f = permanent brownout) and PowerWatcher's Derivation chains its REAL base HeatWatcher (the HeatableSubsystem stand-in broke IsDerivedFrom for the whole Torso/Searchlight/ThermalSight family). - KB correction swept: derivation tag 0x50e604 = HEATWATCHER (not "HeatSink"); the btl4gaug heat-widget gate now tests it via the BTIsHeatWatcher bridge. THE CROSSHAIR (task #58 forensics, 6-agent workflow + live probes): - The VIEW is TORSO-MOUNTED: jointtorso -> jointeye -> siteeyepoint in every twist-capable .SKL; the camera + canopy ride the same hinge subtree through HingeRenderable's live matrix-stack compose -- ALREADY WORKING in the port. The crosshair stays screen-centered (center IS the boresight); the twist reads on the tape carets/compass/radar. - The real bug was the port's gBTAimX = tan(twist) slew (the falsified "body-mounted view" model): the camera already carried the twist, so the crosshair counter-slid to hull-forward and the fire ray with it. Deleted; the pick ray inherits the twist from the yawing eye basis. - Two instrumentation traps documented (chase-eye-as-default-camera, BT_FORCE_TORSO clobbering real joints -> the hook now only fills unresolved ones); an over-correcting explicit eye compose was added on those false readings and retired the same day. CONTROLS + REPLICATION: - Q/E spring-center on release (the axis is a twist-RATE demand; the old hold-deflection model drifted forever); X also zeroes the axis and pulses the authentic torso Recenter (@004b6918). M cycles control mode via the real CycleControlMode body. - Torso update-record DIRECTION fixed: engine truth is Write=serialize / Read=apply; @004b6a78 is the READ (was mislabeled Write) and the missing WRITE @004b6a1c recovered from raw disasm (recordLength 0x1C, twist/vel/rate at +0x10/14/18) -- kills the replicant's 0xCDCDCDCD -140-degree ghost twist. - Marching-ghost desync: 4 Standing-case guards zero stale reverse cycleSpeed (negative cadence passed the <= ZeroSpeed stop gate). - Kill credit rerouted to the OBSERVED killer (lastInflictingID -> killer's player link) -- kills count, target K/D populates. KB: subsystems.md (watcher chain), multiplayer.md (record direction), combat-damage.md + gauges-hud.md + cockpit-view.md (torso-mounted view re-correction), decomp-reference.md (new addresses + tag fix), open-questions.md (dead capability-roster loops 2-4, snapshot CD read). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
1376 lines
54 KiB
C++
1376 lines
54 KiB
C++
//===========================================================================//
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// File: mech2.cpp //
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// Project: BattleTech Brick: Entity Manager //
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// Contents: Mech locomotion / gait animation -- second implementation slice //
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//---------------------------------------------------------------------------//
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// Date Who Modification //
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// -------- --- ---------------------------------------------------------- //
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// --/--/95 ?? 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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// RECONSTRUCTED from the shipped binary (Ghidra pseudo-C in
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// all/part_012.c, cluster 0x4a5028-0x4a7400) cross-referenced with the
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// surviving animation-name string table at .data:0050cfe8 and the
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// CLASSMAP shared-base offset layout. The decompiler tagged exactly four
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// functions in this window as file=bt/mech2.cpp:
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//
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// @004a5028 Mech::AdvanceLegAnimation (1543 bytes)
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// @004a5678 Mech::AdvanceBodyAnimation (1333 bytes)
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// @004a5bf8 Mech::AdvanceBodyAnimationAirborne(1792 bytes)
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// @004a71f4 Mech::AdvanceLegAnimationAirborne (1840 bytes)
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//
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// The embedded assert path on every one of them is
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// "d:\tesla\bt\bt\MECH2.CPP"
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// (strings @0050d7e4 / 0050d81a / 0050d850 / 0050d886 / 0050d8bc) at source
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// lines 0xD3, 0x13B, 0x206, 0x2E8 and 0x672 respectively -- confirming the
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// attribution and the original source ordering.
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//
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// These four functions are Mech METHODS. The Mech class declaration is owned
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// by mech.cpp / mech.hpp (the first slice); this file therefore declares no
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// header of its own. The member offsets it touches are documented in the
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// "Mech animation member map" block below so the mech.hpp owner can fold them
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// into the class definition (see report). Field offsets noted in comments are
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// the byte offsets observed in the decompiled object (e.g. "@0x348").
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//
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//---------------------------------------------------------------------------//
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// THE TWO ANIMATION CHANNELS
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//
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// A Mech carries two parallel gait animators, each a SequenceController plus a
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// small state machine driven by an AlarmIndicator that stores the current
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// animation enumerant:
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//
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// Channel A ("leg" / locally-simulated gait)
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// legAnimation @0x65c SequenceController
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// legStateAlarm @0x39c AlarmIndicator (current state readable @0x3b0)
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// legCycleSpeed @0x348 smoothed leg-cycle speed
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// Input: the *live* commanded speed from the controls subsystem
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// ( *(*(this+0x128)) + 0x128 ).
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//
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// Channel B ("body" / displayed-motion gait, integrated by Mech::IntegrateMotion
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// @004ab1c8 to advance the world transform)
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// bodyAnimation @0x6bc SequenceController
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// bodyStateAlarm @0x714 AlarmIndicator (current state readable @0x728)
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// bodyCycleSpeed @0x6b8 smoothed body-cycle speed
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// bodyTargetSpeed @0x6b4 target speed snapshot (dead-reckoned / net)
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//
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// Each channel ships in two flavours selected per-frame by movementMode @0x40
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// (see Mech::IntegrateMotion @004ab1c8, which picks the airborne body updater
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// when (movementMode==3 || movementMode==4) && jumpActive @0x580):
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// "ground" -- 0x5028 (leg) / 0x5678 (body)
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// "airborne" -- 0x71f4 (leg) / 0x5bf8 (body): adds the FallForward /
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// FallBackward jump-jet states 0x18/0x19 and clamps the
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// commanded speed to the jump-speed limits.
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//
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// The exact A=leg / B=body role split is best-effort; what is certain from the
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// decomp is the (channelA,channelB) x (ground,airborne) 2x2 grouping and the
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// data each reads. Flagged inline as TODO where uncertain.
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//
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//---------------------------------------------------------------------------//
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// Helper / engine routine name mapping used below:
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// FUN_0042790c SequenceController::Advance(increment, loop) -> Scalar
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// (advances the active clip, returns cycle distance covered)
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// FUN_004277a8 SequenceController::SelectSequence(clip, dbg...) (via setters)
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// FUN_004283b8 SequenceController::Reset(loop)
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// FUN_0041bbd8 AlarmIndicator::SetLevel(n) (== heat.cpp mapping)
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// FUN_00408440 Vector/string Assign(dst, src) (clears @0x598 to "")
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// FUN_0040385c Verify()/assert(msg,file,line) (== heat.cpp mapping)
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// FUN_004dbb24 DebugStream::operator<<(stream,str) (error message build)
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// FUN_004d9c38 DebugStream::flush/emit
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// FUN_0049fb54 Mech::IsDisabled() (true => mask action-request bits)
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// FUN_004a7fc4 Mech::SetLegAnimation(state) (cluster helper, see below)
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// FUN_004a800c Mech::SetBodyAnimation(state) (cluster helper, see below)
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// FUN_004a4c54 Mech::RequestActionFlags(bits) (cluster helper, see below)
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//
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// Read-only constants resolved from CODE literal pools (all == 0.0f):
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// _DAT_004a5674 = _DAT_004a5bf4 = _DAT_004a6340 = _DAT_004a796c = 0.0f
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// &DAT_004e0f74 = "" (empty string; 0050cfe0 byte at 0x4e0f74 == 0)
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//
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#include <bt.hpp>
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#pragma hdrstop
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#if !defined(MECH_HPP)
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# include <mech.hpp> // Mech class -- owned by mech.cpp slice
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#endif
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#if !defined(MECHMPPR_HPP)
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# include <mechmppr.hpp> // MechControlsMapper -- the leg channel's LIVE speed source
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#endif
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#if !defined(APP_HPP)
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# include <app.hpp>
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#endif
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//
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// Speed comparisons in the original use a literal-pool 0.0f as a "moving at
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// all" threshold; reverse/gimp cycle ratios are reflected through it so a
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// backward cycle plays its clip with a positive increment.
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//
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static const Scalar ZeroSpeed = 0.0f; // _DAT_004a5674 / 5bf4 / 6340 / 796c
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//###########################################################################
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//##################### Mech gait animation enum ########################
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//###########################################################################
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//
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// Recovered verbatim from the 0x3c-byte-stride name table at .data:0050cfe8
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// (used by the "Unsupported mech animation" assert). This enum belongs in
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// mech.hpp; reproduced here for clarity of the switches below.
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//
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enum MechAnimationState
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{
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StandingAnimation = 0x00,
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RightStandToWalkAnimation = 0x01,
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RightWalkForwardAnimation = 0x02,
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LeftWalkForwardAnimation = 0x03,
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RightWalkToStandAnimation = 0x04,
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LeftWalkToStandAnimation = 0x05,
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RightWalkToRunAnimation = 0x06,
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LeftWalkToRunAnimation = 0x07,
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RightRunAnimation = 0x08,
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LeftRunAnimation = 0x09,
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RightRunToWalkAnimation = 0x0a,
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LeftRunToWalkAnimation = 0x0b,
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RightStandToReverseAnimation = 0x0c,
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LeftStandToReverseAnimation = 0x0d,
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RightReverseAnimation = 0x0e,
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LeftReverseAnimation = 0x0f,
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RightReverseToStandAnimation = 0x10,
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LeftReverseToStandAnimation = 0x11,
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LeftWalkToGimpAnimation = 0x12,
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RightWalkToGimpAnimation = 0x13,
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LeftGimpAnimation = 0x14,
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RightGimpAnimation = 0x15,
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LeftGimpToStandAnimation = 0x16,
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RightGimpToStandAnimation = 0x17,
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FallForwardAnimation = 0x18,
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FallBackwardAnimation = 0x19,
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FallLeftAnimation = 0x1a,
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FallRightAnimation = 0x1b,
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CrashAnimation = 0x1c,
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// 0x1d-0x20 are valid clip slots (death variants) handled by the
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// "advance normally" group but are past the named table; AnimationCount
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// is the table sentinel at index 0x1d.
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AnimationCount = 0x1d
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};
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//###########################################################################
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//################# Mech animation member map (offsets) #################
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//###########################################################################
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//
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// For the mech.hpp owner. Names below are used in the bodies; "?" flags an
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// uncertain semantic. All are Scalar unless noted.
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//
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// @0x18 actionRequestFlags (Word) pending-action bitfield (RequestActionFlags)
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// @0x40 movementMode (int) gait/death selector: 3=Run,4=Walk,5-8=fall/death? (?)
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// @0x128 controlSource (ptr) handle; *(*(this+0x128))+0x128 == commandedSpeed
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// @0x344 forwardCycleRate leg/body speed slew rate (set from 0x5b8/0x5bc)
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// @0x348 legCycleSpeed channel A current cycle speed
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// @0x34c reverseStrideLength clip length for the Reverse cycle
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// @0x350 gimpStrideLength clip length for the Gimp cycle (stored negative)
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// @0x39c legStateAlarm (AlarmIndicator)
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// @0x3b0 legAnimationState (int) == legStateAlarm.level
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// @0x52c gimpSpeedMax speed cap for the Gimp cycle (?)
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// @0x530 standSpeed "at rest" / minimum move speed threshold
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// @0x534 walkStrideLength forward walk/run clip length (also speed cap)
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// @0x538 reverseSpeedMax speed cap while decelerating into Reverse (?)
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// @0x53c jumpRunSpeedMax airborne speed cap, movementMode==3
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// @0x540 jumpWalkSpeedMax airborne speed cap, otherwise
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// @0x544 jumpRunStrideLength airborne clip length, movementMode==3
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// @0x548 jumpWalkStrideLength airborne clip length, otherwise
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// @0x598 motionEventName (string) cleared to "" on fall/reset
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// @0x5a4 motionEventArmed (int) reset to 0 on fall/reset
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// @0x5a8 globalTimeScale multiplies every clip increment
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// @0x5ac idleStrideScale extra scale used only in the idle/transition group
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// @0x5b0 gimpCycleRate speed slew rate while in a Gimp cycle
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// @0x5cc animationClips[] (ptr[]) clip handle per MechAnimationState (this+0x5cc + state*4)
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// @0x650 deathAnimationLatched(int) one-shot latch for movementMode 5-8 death anims
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// @0x654 legResetLatch (int) cleared on fall/reset (channel A)
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// @0x658 bodyResetLatch (int) cleared on fall/reset (channel B)
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// @0x65c legAnimation (SequenceController)
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// @0x6b4 bodyTargetSpeed channel B target cycle speed
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// @0x6b8 bodyCycleSpeed channel B current cycle speed
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// @0x6bc bodyAnimation (SequenceController)
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// @0x714 bodyStateAlarm (AlarmIndicator)
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// @0x728 bodyAnimationState (int) == bodyStateAlarm.level
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// @0x7a0 reverseSpeedMax2 speed cap while accelerating into Reverse (?)
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//
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//###########################################################################
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//###########################################################################
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// Cluster helpers (attribution "?" in the decomp, but they
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// live inside the mech2 window and are required to read the
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// four methods). BEST-EFFORT; the mech.cpp owner should
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// reconcile their final home.
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//###########################################################################
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//###########################################################################
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//
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// @004a7fc4 -- bind the channel-A (leg) SequenceController to the clip for
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// 'state' and record the new state in the leg alarm.
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//
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void
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Mech::SetLegAnimation(int state)
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{
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legAnimation.SelectSequence( // FUN_004277a8(this+0x65c, ...)
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animationClips[state], // *(this+0x5cc + state*4)
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// The real leg finished-callback PTR_LAB_0050d6f0 == FUN_004a6928
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// (resolved from .data + disassembled; == Mech::LegClipFinished below).
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// cbArg2/3 = 0 (the binary's DAT_0050d6f4/d6f8).
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(void *)&Mech::LegClipFinished, 0, 0);
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legStateAlarm.SetLevel(state); // FUN_0041bbd8(this+0x39c, state)
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}
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//
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// @004a800c -- channel-B (body) equivalent of SetLegAnimation.
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//
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void
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Mech::SetBodyAnimation(int state)
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{
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bodyAnimation.SelectSequence( // FUN_004277a8(this+0x6bc, ...)
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animationClips[state],
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// The real body finished-callback PTR_LAB_0050d6fc == FUN_004a6d8c (resolved from the
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// binary + reconstructed as Mech::BodyClipFinished): the gait-state TRANSITION + leg
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// alternation. SequenceController::Advance calls it at end-of-clip; it re-arms the next
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// state's clip (with this same callback) + advances the carryover. cbArg2/3 = 0 (the
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// binary's DAT_0050d700/704).
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(void *)&Mech::BodyClipFinished, 0, 0);
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bodyStateAlarm.SetLevel(state); // FUN_0041bbd8(this+0x714, state)
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}
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//
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// (@004a4c54 lives inline in mech.hpp as Mech::ForceUpdate -- the "action
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// request bits" ARE the updateModel record-request mask; the old
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// RequestActionFlags name wrote a dead side-member the update emitter never
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// read. The call sites below keep their binary-exact masks: 8 = 1<<3 the
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// leg-state/stability record.)
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//###########################################################################
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//###########################################################################
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// BodyTransition / BodyClipFinished (end-of-clip gait transitions)
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//
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// The real body finished-callback FUN_004a6d8c (== PTR_LAB_0050d6fc, resolved from the
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// binary .data at 0x50d6fc). SequenceController::Advance invokes it when a body clip
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// finishes; it dispatches on bodyAnimationState (the jump table @0x4a6e0a), compares the
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// commanded speed (bodyTargetSpeed) to the loaded caps (standSpeed/walkStrideLength/
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// reverseSpeedMax) to pick the next gait state, re-arms it (SetBodyAnimation -> re-binds the
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// clip with THIS same callback so the cycle keeps transitioning), and recursively advances
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// the leftover (carryover) time -- returning the extra distance covered. Reconstructed
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// byte-for-byte from the disassembly (handlers 0x4a6f11 walk-R / 0x4a6e36 walk-L / 0x4a7041 /
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// 0x4a6fc7 run, shared tail 0x4a6e66 / 0x4a6ed1 / 0x4a7001).
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//###########################################################################
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//###########################################################################
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// Shared tail (0x4a6e66 etc.): bind the next state's clip, advance the carryover, return dist.
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Scalar
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Mech::BodyTransition(int next_state, Scalar adv_time, int move_joints)
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{
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SetBodyAnimation(next_state); // call 0x4a800c
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return bodyAnimation.Advance(adv_time, move_joints); // call 0x42790c
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}
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Scalar
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Mech::BodyClipFinished(Mech *m, unsigned /*a2*/, Scalar carryover, int mj)
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{
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// airborne branch (movementMode 3/4 && jumpCapable) -> FUN_004a6344 (deferred; safe
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// no-op while grounded -- the test mech never jumps).
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if ((m->MovementMode() == 3 || m->MovementMode() == 4) && m->jumpCapable)
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return 0.0f;
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const Scalar fcr = m->forwardCycleRate; // 0x344
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const Scalar gts = m->globalTimeScale; // 0x5a8
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const Scalar cyc = m->bodyCycleSpeed; // 0x6b8
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const Scalar tgt = m->bodyTargetSpeed; // 0x6b4
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const Scalar Tscale = carryover * gts; // 0x4a6e66 tail time
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switch (m->bodyAnimationState) // 0x728 (jump table @0x4a6e0a)
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{
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// slot0 (0x4a71e9): standing / idle / reset-idle -- no transition, distance 0.
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case 0: case 1: case 22: case 23: case 24: case 25: case 26: case 27:
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return 0.0f;
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// state 2 (0x4a6fb1): bodyStateAlarm.SetLevel(1).
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case 2:
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m->bodyStateAlarm.SetLevel(1); return 0.0f;
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// slot9 state 4 (0x4a71d8) + slot2 (0x4a6f85) + state 32 (0x4a6f9b): SetLevel(0)
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// (transition-END clips fall back to standing).
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case 3: case 4: case 8: case 9: case 20: case 21:
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case 28: case 29: case 30: case 31: case 32:
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m->bodyStateAlarm.SetLevel(0); return 0.0f;
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// -- walk-R handler (0x4a6f11): states 5 (swr-end),6 (wwr),14 --
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case 5: case 6: case 14:
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{
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bool cont = (tgt >= m->standSpeed) || ((cyc - fcr * carryover) >= m->standSpeed);
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if (!cont) // 0x4a6f11 -> next 9 (wsl, walk->stand)
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return m->BodyTransition(9, Tscale, mj);
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bool up = (tgt > m->walkStrideLength) && ((cyc + fcr * carryover) > m->walkStrideLength);
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if (up) // 0x4a6f46 -> next 0xb (11, toward run)
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return m->BodyTransition(0xb, Tscale, mj);
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return m->BodyTransition(7, carryover * cyc * gts / m->walkStrideLength, mj); // 0x4a6f7b alt -> wwl
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}
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// -- walk-L handler (0x4a6e36): states 7 (wwl),15 --
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case 7: case 15:
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{
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bool cont = (tgt >= m->standSpeed) || ((cyc - fcr * carryover) >= m->standSpeed);
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if (!cont) // 0x4a6e36 -> next 8 (wsr)
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return m->BodyTransition(8, Tscale, mj);
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bool up = (tgt > m->walkStrideLength) && ((cyc + fcr * carryover) > m->walkStrideLength);
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if (up) // 0x4a6e9a -> next 0xa (10)
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return m->BodyTransition(0xa, Tscale, mj);
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return m->BodyTransition(6, carryover * cyc * gts / m->walkStrideLength, mj); // 0x4a6ecc alt -> wwr
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}
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// -- run/reverse-A handler (0x4a7041): states 10,12 --
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case 10: case 12:
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{
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bool cont = (tgt >= m->reverseSpeedMax) || ((cyc - fcr * carryover) >= m->reverseSpeedMax);
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if (!cont) // 0x4a7041 -> next 0xf (15)
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return m->BodyTransition(0xf, Tscale, mj);
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return m->BodyTransition(0xd, carryover * cyc * gts / m->reverseStrideLength, mj); // 0x4a7076 alt -> 13
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}
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// -- run/reverse-B handler (0x4a6fc7): states 11,13 --
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case 11: case 13:
|
|
{
|
|
bool cont = (tgt >= m->reverseSpeedMax) || ((cyc - fcr * carryover) >= m->reverseSpeedMax);
|
|
if (!cont) // 0x4a6fc7 -> next 0xe (14)
|
|
return m->BodyTransition(0xe, Tscale, mj);
|
|
return m->BodyTransition(0xc, carryover * cyc * gts / m->reverseStrideLength, mj); // 0x4a6ffc alt -> 12
|
|
}
|
|
// -- REVERSE handlers (0x4a707d states 16,18 / 0x4a712c states 17,19): the body
|
|
// mirror of the leg's reverse cases (0x4a6c17/0x4a6cc4). The earlier "gimp,
|
|
// not decoded -> fall back to standing" reading was wrong twice over: these
|
|
// are the REVERSE gait (16/17 = sbr/sbl entry, 18/19 = bbr/bbl back cycle,
|
|
// 0x14/0x15 = bsr/bsl back->stand exit -- the slot map is binary-verified),
|
|
// and the stand fallback made the body loop stand->reverse-entry forever
|
|
// ("lingers in 16": slow reverse + the screwy backward->forward exit).
|
|
// The alt tails 0x70b2/0x7161 are the BodyTransition(0x13/0x12) cycle folds,
|
|
// by exact structural symmetry with the leg jump table (every previously
|
|
// decoded body case mirrors its leg twin). While reversing (demand below
|
|
// gimpSpeedMax) the cycle alternates 0x12<->0x13; a forward demand exits
|
|
// through 0x15/0x14 (back->stand), then Standing self-arms the forward walk.
|
|
case 16: case 18:
|
|
{
|
|
bool up = (tgt > m->gimpSpeedMax) && ((m->gimpCycleRate * carryover + cyc) > m->gimpSpeedMax);
|
|
if (up)
|
|
return m->BodyTransition(0x15, Tscale, mj);
|
|
Scalar t = carryover * cyc * gts / m->gimpStrideLength; // gimpStride stored NEGATIVE
|
|
if (t <= 0.0f) t = -t; // sign fold (leg: 0x4a6c6e/0x4a6d3d)
|
|
return m->BodyTransition(0x13, t, mj);
|
|
}
|
|
case 17: case 19:
|
|
{
|
|
bool up = (tgt > m->gimpSpeedMax) && ((m->gimpCycleRate * carryover + cyc) > m->gimpSpeedMax);
|
|
if (up)
|
|
return m->BodyTransition(0x14, Tscale, mj);
|
|
Scalar t = carryover * cyc * gts / m->gimpStrideLength;
|
|
if (t <= 0.0f) t = -t;
|
|
return m->BodyTransition(0x12, t, mj);
|
|
}
|
|
|
|
default: // 0x4a71e9 (state > 0x20 or unmapped)
|
|
return 0.0f;
|
|
}
|
|
}
|
|
|
|
// Bring-up loop for the inline cutover path (BT_GAIT_CUTOVER without BT_GAIT_SM): re-arm the
|
|
// current body clip at frame 0 and advance the carryover (the SequenceController's own clip
|
|
// keeps playing). NOT the authentic transition path -- that is BodyClipFinished above.
|
|
Scalar
|
|
Mech::LoopBodyClip(Mech *m, unsigned /*a2*/, Scalar carryover, int move_joints)
|
|
{
|
|
m->bodyAnimation.currentFrame = 0;
|
|
m->bodyAnimation.currentTime = 0.0f;
|
|
m->bodyAnimation.keyframeCursor = m->bodyAnimation.keyframeBase;
|
|
return m->bodyAnimation.Advance(carryover, move_joints);
|
|
}
|
|
|
|
|
|
//###########################################################################
|
|
//###########################################################################
|
|
// LegTransition / LegClipFinished (LEG-channel end-of-clip)
|
|
//
|
|
// The real leg finished-callback FUN_004a6928 (== PTR_LAB_0050d6f0, resolved from
|
|
// the binary .data at 0x50d6f0 and capstone-disassembled: jump table byte idx
|
|
// @0x4a6989, dword targets @0x4a69aa -- the same 33-state shape as the body's).
|
|
// Differences from BodyClipFinished, all verified in the disassembly:
|
|
// - the speed compared is the LIVE commanded speed *(subsystemArray[0])+0x128
|
|
// == the controls mapper's speedDemand (typed mirror: controlsMapper), not
|
|
// the snapshot bodyTargetSpeed;
|
|
// - the cycle speed slewed/scaled is legCycleSpeed@0x348 (not bodyCycleSpeed);
|
|
// - re-arm via SetLegAnimation + legAnimation.Advance (0x65c, alarm@0x39c);
|
|
// - the GIMP cycle alternates 0x12<->0x13 with |ratio| (gimpStrideLength is
|
|
// stored negative; the 0x4a6c6e sign fold takes the magnitude).
|
|
//###########################################################################
|
|
//###########################################################################
|
|
|
|
// Shared tail (0x4a6a06 / 0x4a6a6f / 0x4a6b9d): bind next state's clip, advance carryover.
|
|
Scalar
|
|
Mech::LegTransition(int next_state, Scalar adv_time, int move_joints)
|
|
{
|
|
SetLegAnimation(next_state); // call 0x4a7fc4
|
|
return legAnimation.Advance(adv_time, move_joints); // call 0x42790c
|
|
}
|
|
|
|
Scalar
|
|
Mech::LegClipFinished(Mech *m, unsigned /*a2*/, Scalar carryover, int mj)
|
|
{
|
|
// airborne branch (movementMode 3/4 && jumpCapable) -> FUN_004a7970 (deferred).
|
|
if ((m->MovementMode() == 3 || m->MovementMode() == 4) && m->jumpCapable)
|
|
return 0.0f;
|
|
|
|
// The binary reads edx = *(mech+0x128) then [edx]+0x128: subsystemArray[0]
|
|
// (the roster's ControlsMapper slot 0) -> speedDemand; null (no mapper)
|
|
// reads demand 0 -> the mech idles. (task #7: read the REAL slot-0 mapper.)
|
|
MechControlsMapper *mppr2 = m->MappingMapper();
|
|
const Scalar spd = (mppr2 != 0) ? mppr2->speedDemand : 0.0f;
|
|
const Scalar fcr = m->forwardCycleRate; // 0x344
|
|
const Scalar gts = m->globalTimeScale; // 0x5a8
|
|
const Scalar cyc = m->legCycleSpeed; // 0x348
|
|
const Scalar T = carryover * gts; // 0x4a6a06 tail time
|
|
|
|
switch (m->legAnimationState) // 0x3b0 (jump table @0x4a69aa)
|
|
{
|
|
// slot0 (0x4a6d7f): standing / idle -- no transition, distance 0.
|
|
case 0: case 1: case 22: case 23: case 24: case 25: case 26: case 27:
|
|
return 0.0f;
|
|
// slot10 state 2 (0x4a6b37): SetLevel(1).
|
|
case 2:
|
|
m->legStateAlarm.SetLevel(1); return 0.0f;
|
|
// slot2 (0x4a6b21) + slot1 state 32 (0x4a6b4d) + slot9 state 4 (0x4a6d6e): SetLevel(0).
|
|
case 3: case 4: case 8: case 9: case 20: case 21:
|
|
case 28: case 29: case 30: case 31: case 32:
|
|
m->legStateAlarm.SetLevel(0); return 0.0f;
|
|
|
|
// -- walk-R handler (0x4a6aad): states 5,6,14 --
|
|
case 5: case 6: case 14:
|
|
{
|
|
bool cont = (spd >= m->standSpeed) || ((cyc - fcr * carryover) >= m->standSpeed);
|
|
if (!cont) // -> 9 (walk->stand L)
|
|
return m->LegTransition(9, T, mj);
|
|
bool up = (spd > m->walkStrideLength) && ((cyc + fcr * carryover) > m->walkStrideLength);
|
|
if (up) // 0x4a6ae2 -> 0xb (toward run)
|
|
return m->LegTransition(0xb, T, mj);
|
|
return m->LegTransition(7, carryover * cyc * gts / m->walkStrideLength, mj); // alt -> walk-L
|
|
}
|
|
// -- walk-L handler (0x4a69d6): states 7,15 --
|
|
case 7: case 15:
|
|
{
|
|
bool cont = (spd >= m->standSpeed) || ((cyc - fcr * carryover) >= m->standSpeed);
|
|
if (!cont) // -> 8 (walk->stand R)
|
|
return m->LegTransition(8, T, mj);
|
|
bool up = (spd > m->walkStrideLength) && ((cyc + fcr * carryover) > m->walkStrideLength);
|
|
if (up) // 0x4a6a38 -> 0xa
|
|
return m->LegTransition(0xa, T, mj);
|
|
return m->LegTransition(6, carryover * cyc * gts / m->walkStrideLength, mj); // alt -> walk-R
|
|
}
|
|
// -- run handler (0x4a6bdb): states 10,12 --
|
|
case 10: case 12:
|
|
{
|
|
bool cont = (spd >= m->reverseSpeedMax) || ((cyc - fcr * carryover) >= m->reverseSpeedMax);
|
|
if (!cont) // -> 0xf (15)
|
|
return m->LegTransition(0xf, T, mj);
|
|
return m->LegTransition(0xd, carryover * cyc * gts / m->reverseStrideLength, mj); // alt -> 13
|
|
}
|
|
// -- run handler (0x4a6b63): states 11,13 --
|
|
case 11: case 13:
|
|
{
|
|
bool cont = (spd >= m->reverseSpeedMax) || ((cyc - fcr * carryover) >= m->reverseSpeedMax);
|
|
if (!cont) // -> 0xe (14)
|
|
return m->LegTransition(0xe, T, mj);
|
|
return m->LegTransition(0xc, carryover * cyc * gts / m->reverseStrideLength, mj); // alt -> 12
|
|
}
|
|
// -- gimp handler (0x4a6c17): states 16,18 -> alt 0x13; up 0x15 --
|
|
case 16: case 18:
|
|
{
|
|
bool up = (spd > m->gimpSpeedMax) && ((m->gimpCycleRate * carryover + cyc) > m->gimpSpeedMax);
|
|
if (up)
|
|
return m->LegTransition(0x15, T, mj);
|
|
Scalar t = carryover * cyc * gts / m->gimpStrideLength; // gimpStride stored NEGATIVE
|
|
if (t <= 0.0f) t = -t; // 0x4a6c6e/0x4a6d3d sign fold
|
|
return m->LegTransition(0x13, t, mj);
|
|
}
|
|
// -- gimp handler (0x4a6cc4): states 17,19 -> alt 0x12; up 0x14 --
|
|
case 17: case 19:
|
|
{
|
|
bool up = (spd > m->gimpSpeedMax) && ((m->gimpCycleRate * carryover + cyc) > m->gimpSpeedMax);
|
|
if (up)
|
|
return m->LegTransition(0x14, T, mj);
|
|
Scalar t = carryover * cyc * gts / m->gimpStrideLength;
|
|
if (t <= 0.0f) t = -t;
|
|
return m->LegTransition(0x12, t, mj);
|
|
}
|
|
|
|
default: // state > 0x20 / unmapped
|
|
return 0.0f;
|
|
}
|
|
}
|
|
|
|
|
|
//###########################################################################
|
|
//###########################################################################
|
|
// AdvanceLegAnimation (channel A, ground)
|
|
//
|
|
// @004a5028 (MECH2.CPP:0xD3, 0x13B)
|
|
//
|
|
// Per-frame update of the locally-simulated leg gait. Reads the live
|
|
// commanded speed from the controls subsystem, slews legCycleSpeed toward it,
|
|
// drives the walk/run/reverse/gimp state machine, advances the leg clip and
|
|
// returns the cycle distance covered this frame.
|
|
//###########################################################################
|
|
//###########################################################################
|
|
Scalar
|
|
Mech::AdvanceLegAnimation(Scalar time_slice)
|
|
{
|
|
// commandedSpeed = *(*(this+0x128)) + 0x128 in the binary: subsystemArray[0]
|
|
// (the roster's ControlsMapper slot) -> speedDemand, read LIVE each frame.
|
|
// RECONCILED: the old draft double-deref'd the never-initialized controlSource
|
|
// alias (an AV); controlsMapper is the typed mirror of roster slot 0. A mech
|
|
// with no mapper reads demand 0 (idles) -- matching a zeroed binary roster.
|
|
MechControlsMapper *mppr = MappingMapper(); // roster slot 0 (task #7)
|
|
Scalar commandedSpeed =
|
|
(mppr != 0) ? mppr->speedDemand : 0.0f;
|
|
Scalar distance = 0.0f;
|
|
|
|
// binary: legAnimationState@0x3b0 IS legStateAlarm's level (one field; the
|
|
// recon split them) -- re-sync so SetLegAnimation's level reaches the switch.
|
|
legAnimationState = (int)legStateAlarm.GetLevel();
|
|
|
|
//
|
|
// One-shot: when movementMode selects a death/fall (5..8), latch the
|
|
// matching crash clip (0x1c..0x1f) exactly once.
|
|
//
|
|
if (!deathAnimationLatched)
|
|
{
|
|
switch (MovementMode()) // this+0x40 = simulationState
|
|
{
|
|
case 5: SetLegAnimation(0x1c); deathAnimationLatched = 1; break;
|
|
case 6: SetLegAnimation(0x1d); deathAnimationLatched = 1; break;
|
|
case 7: SetLegAnimation(0x1e); deathAnimationLatched = 1; break;
|
|
case 8: SetLegAnimation(0x1f); deathAnimationLatched = 1; break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Once the leg cycle has wound down (legCycleSpeed <= 0) while in a
|
|
// run/run-to-walk transition, drop the gait alarm to "standing".
|
|
//
|
|
{
|
|
int state = legAnimationState; // this+0x3b0
|
|
if (legCycleSpeed <= ZeroSpeed // this+0x348
|
|
&& (state == 6 || state == 7 || state == 8 || state == 9))
|
|
{
|
|
legStateAlarm.SetLevel(0); // FUN_0041bbd8(this+0x39c,0)
|
|
legResetLatch = 1; // this+0x654
|
|
}
|
|
}
|
|
|
|
switch (legAnimationState) // this+0x3b0
|
|
{
|
|
case StandingAnimation: // 0
|
|
// STANDING ZEROES THE CYCLE (reverse-stop desync, live-diagnosed
|
|
// 2026-07-13): a REVERSE cadence is NEGATIVE, so the walk-family stop
|
|
// gate (cycleSpeed <= ZeroSpeed) passes while still cycling at full
|
|
// reverse speed, and several stand-entry paths (turn exit, terminal
|
|
// poses) never touch the cycle -- Standing could be entered with a
|
|
// stale legCycleSpeed = -2.507 ([gaitSM] state=0 evidence). The master
|
|
// LOOKS still (case 0 never advances the clip) but the stale cycle
|
|
// REPLICATES and the peer's replicant marches in place. A standing
|
|
// mech's cycle is 0 (the clean forward-stop log: legSum ~3e-8).
|
|
if (legCycleSpeed != 0.0f)
|
|
{
|
|
legCycleSpeed = 0.0f;
|
|
ForceUpdate(8); // type-3 record: legs stopped
|
|
}
|
|
// RAW (part_012.c FUN_004a5028 case 0): standSpeed < commandedSpeed ->
|
|
// begin WALKING (state 5); 0 <= commanded < standSpeed -> stay standing;
|
|
// commanded < 0 -> stand-to-reverse (0x10). (The earlier draft had the
|
|
// first comparison INVERTED -> a commanded mech never left Standing.)
|
|
if (standSpeed < commandedSpeed) // this+0x530 < live demand
|
|
{
|
|
SetLegAnimation(5); // stand -> walk
|
|
}
|
|
else
|
|
{
|
|
distance = 0.0f;
|
|
// TURN-IN-PLACE entry (bring-up TRIGGER, real machinery): the trn
|
|
// clip/state-4 advance/exit are binary-verified, but the authentic
|
|
// entry DISPATCHER isn't yet located in the decomp -- enter from
|
|
// Standing on a live turn demand with no speed demand. The clip's
|
|
// finished-callback drops back to stand; while the demand persists
|
|
// this trigger re-arms it (a looping pivot step).
|
|
if (hasCrashSet != 0 && mppr != 0
|
|
&& ZeroSpeed <= commandedSpeed
|
|
&& (mppr->turnDemand > 0.05f
|
|
|| mppr->turnDemand < -0.05f))
|
|
{
|
|
SetLegAnimation(4); // turn-in-place (trn)
|
|
goto advance_normally;
|
|
}
|
|
if (ZeroSpeed <= commandedSpeed)
|
|
{
|
|
break; // truly at rest
|
|
}
|
|
SetLegAnimation(0x10); // reverse entry
|
|
}
|
|
// FALLTHROUGH into the "advance normally" group (state has just been
|
|
// changed away from Standing by the setters above).
|
|
|
|
case 2: case 3: case 5: case 8: case 9: case 10: case 0x0b:
|
|
case 0x0e: case 0x0f: case 0x10: case 0x11: case 0x14: case 0x15:
|
|
case 0x1c: case 0x1d: case 0x1e: case 0x1f: case 0x20:
|
|
advance_normally:
|
|
//
|
|
// Standing must never reach here -- the fallthrough above always
|
|
// retargets the alarm first.
|
|
//
|
|
if (legAnimationState == StandingAnimation)
|
|
{
|
|
Verify(False, "Standing Not Supported",
|
|
"d:\\tesla\\bt\\bt\\MECH2.CPP", 0xD3);
|
|
}
|
|
distance = legAnimation.Advance( // FUN_0042790c(this+0x65c, ...)
|
|
time_slice * globalTimeScale * idleStrideScale, // 0x5a8 * 0x5ac
|
|
1);
|
|
legCycleSpeed = distance / time_slice; // this+0x348
|
|
break;
|
|
|
|
case 1:
|
|
distance = 0.0f;
|
|
break;
|
|
|
|
case 4: // TURN-IN-PLACE (trn clip)
|
|
// BINARY-VERIFIED (raw FUN_004a5028 case 4, part_012.c:12013): state 4 is
|
|
// the turn-in-place animation (animationClips[4] = the "trn" clip, loaded
|
|
// under turnCapable@0x588). It EXITS to stand when a real speed is
|
|
// commanded (standSpeed < demand -- the earlier draft had this comparison
|
|
// INVERTED, the same bug class as the Standing case) or when reverse is
|
|
// commanded; otherwise it ADVANCES the turn clip while the mech pivots.
|
|
if (standSpeed < commandedSpeed)
|
|
{
|
|
legStateAlarm.SetLevel(0);
|
|
ForceUpdate(8); // FUN_004a4c54(this,8): type-3 record
|
|
break;
|
|
}
|
|
distance = 0.0f;
|
|
if (commandedSpeed < ZeroSpeed)
|
|
{
|
|
legStateAlarm.SetLevel(0);
|
|
ForceUpdate(8); // type-3 record
|
|
break;
|
|
}
|
|
goto advance_normally;
|
|
|
|
case 6: case 7: // WalkToRun
|
|
//
|
|
// Slew legCycleSpeed toward commandedSpeed at forwardCycleRate,
|
|
// clamped into [standSpeed .. walkStrideLength].
|
|
//
|
|
if (commandedSpeed <= legCycleSpeed)
|
|
{
|
|
if (commandedSpeed < legCycleSpeed)
|
|
{
|
|
legCycleSpeed -= forwardCycleRate * time_slice; // 0x344
|
|
if (legCycleSpeed < commandedSpeed)
|
|
{
|
|
legCycleSpeed = commandedSpeed;
|
|
}
|
|
if (legCycleSpeed < standSpeed) // 0x530
|
|
{
|
|
legCycleSpeed = standSpeed;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
legCycleSpeed += forwardCycleRate * time_slice;
|
|
if (legCycleSpeed > commandedSpeed)
|
|
{
|
|
legCycleSpeed = commandedSpeed;
|
|
}
|
|
if (legCycleSpeed > walkStrideLength) // 0x534 (used as cap)
|
|
{
|
|
legCycleSpeed = walkStrideLength;
|
|
}
|
|
}
|
|
distance = legAnimation.Advance(
|
|
time_slice * (legCycleSpeed / walkStrideLength) * globalTimeScale,
|
|
1);
|
|
break;
|
|
|
|
case 0x0c: case 0x0d: // StandToReverse
|
|
if (commandedSpeed <= legCycleSpeed)
|
|
{
|
|
if (commandedSpeed < legCycleSpeed)
|
|
{
|
|
legCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (legCycleSpeed < commandedSpeed)
|
|
{
|
|
legCycleSpeed = commandedSpeed;
|
|
}
|
|
if (legCycleSpeed < reverseSpeedMax) // 0x538
|
|
{
|
|
legCycleSpeed = reverseSpeedMax;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
legCycleSpeed += forwardCycleRate * time_slice;
|
|
if (legCycleSpeed > commandedSpeed)
|
|
{
|
|
legCycleSpeed = commandedSpeed;
|
|
}
|
|
if (legCycleSpeed > reverseSpeedMax2) // 0x7a0
|
|
{
|
|
legCycleSpeed = reverseSpeedMax2;
|
|
}
|
|
}
|
|
distance = legAnimation.Advance(
|
|
time_slice * (legCycleSpeed / reverseStrideLength) * globalTimeScale, // 0x34c
|
|
1);
|
|
break;
|
|
|
|
case 0x12: case 0x13: // WalkToGimp
|
|
if (commandedSpeed <= legCycleSpeed)
|
|
{
|
|
if (commandedSpeed < legCycleSpeed)
|
|
{
|
|
legCycleSpeed -= gimpCycleRate * time_slice; // 0x5b0
|
|
if (legCycleSpeed < commandedSpeed)
|
|
{
|
|
legCycleSpeed = commandedSpeed;
|
|
}
|
|
if (legCycleSpeed < gimpStrideLength) // 0x350
|
|
{
|
|
legCycleSpeed = gimpStrideLength;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
legCycleSpeed += gimpCycleRate * time_slice;
|
|
if (legCycleSpeed > commandedSpeed)
|
|
{
|
|
legCycleSpeed = commandedSpeed;
|
|
}
|
|
if (legCycleSpeed > gimpSpeedMax) // 0x52c
|
|
{
|
|
legCycleSpeed = gimpSpeedMax;
|
|
}
|
|
}
|
|
{
|
|
// gimpStrideLength is stored negative; reflect the ratio through
|
|
// ZeroSpeed so the clip plays with a positive increment.
|
|
Scalar ratio = legCycleSpeed / gimpStrideLength; // 0x350
|
|
if (ratio <= ZeroSpeed)
|
|
{
|
|
ratio = -ratio;
|
|
}
|
|
distance = legAnimation.Advance(
|
|
ratio * time_slice * globalTimeScale, 1);
|
|
}
|
|
break;
|
|
|
|
case 0x16: case 0x17: case 0x18: case 0x19: case 0x1a: case 0x1b:
|
|
//
|
|
// Gimp-to-stand and the four fall directions: terminal poses. Clear
|
|
// the motion event, drop both reset latches, reset the leg clip.
|
|
//
|
|
Assign(this->motionEventName, ""); // FUN_00408440(this+0x598, &DAT_004e0f74)
|
|
motionEventArmed = 0; // this+0x5a4
|
|
legResetLatch = 0; // this+0x654
|
|
deathAnimationLatched = 0; // this+0x650
|
|
legStateAlarm.SetLevel(0); // this+0x39c
|
|
legAnimation.Reset(1); // FUN_004283b8(this+0x65c, 1)
|
|
break;
|
|
|
|
default:
|
|
// name table @0050cfe8, 0x3c-byte stride, indexed by state
|
|
DebugStream << (AnimationNames + legAnimationState * 0x3c);
|
|
DebugStream.Emit();
|
|
Verify(False, "Unsupported mech animation!",
|
|
"d:\\tesla\\bt\\bt\\MECH2.CPP", 0x13B);
|
|
}
|
|
|
|
return distance;
|
|
}
|
|
|
|
|
|
//###########################################################################
|
|
//###########################################################################
|
|
// AdvanceBodyAnimation (channel B, ground)
|
|
//
|
|
// @004a5678 (MECH2.CPP:0x206)
|
|
//
|
|
// Channel-B counterpart used by Mech::IntegrateMotion to advance the world
|
|
// transform. Identical state machine to AdvanceLegAnimation except it slews
|
|
// bodyCycleSpeed toward the snapshot bodyTargetSpeed (not the live controls
|
|
// value), takes an explicit loop flag, and has no death-latch / "Standing Not
|
|
// Supported" guard.
|
|
//###########################################################################
|
|
//###########################################################################
|
|
Scalar
|
|
Mech::AdvanceBodyAnimation(Scalar time_slice, int loop)
|
|
{
|
|
Scalar distance = 0.0f;
|
|
|
|
// In the binary `bodyAnimationState`@0x728 IS `bodyStateAlarm`'s level (one field);
|
|
// the reconstruction split them, so SetBodyAnimation's `bodyStateAlarm.SetLevel(state)`
|
|
// would not update the int the switch reads. Re-sync from the alarm each frame (the
|
|
// switch below dispatches on the pre-transition state exactly as the binary does).
|
|
bodyAnimationState = (int)bodyStateAlarm.GetLevel();
|
|
|
|
if (!deathAnimationLatched) // this+0x650
|
|
{
|
|
switch (MovementMode()) // this+0x40 = simulationState
|
|
{
|
|
case 5: SetBodyAnimation(0x1c); deathAnimationLatched = 1; break;
|
|
case 6: SetBodyAnimation(0x1d); deathAnimationLatched = 1; break;
|
|
case 7: SetBodyAnimation(0x1e); deathAnimationLatched = 1; break;
|
|
case 8: SetBodyAnimation(0x1f); deathAnimationLatched = 1; break;
|
|
}
|
|
}
|
|
|
|
switch (bodyAnimationState) // this+0x728
|
|
{
|
|
case StandingAnimation: // 0
|
|
// STANDING ZEROES THE CYCLE (reverse-stop desync, live-diagnosed
|
|
// 2026-07-13): a REVERSE cadence is NEGATIVE, so the walk-family stop
|
|
// gate (cycleSpeed <= ZeroSpeed) passes while still cycling at full
|
|
// reverse speed, and several stand-entry paths (turn exit, terminal
|
|
// poses) never touch the cycle -- Standing could be entered with a
|
|
// stale bodyCycleSpeed = -2.507 ([gaitSM] state=0 evidence). The master
|
|
// LOOKS still (case 0 never advances the clip) but the stale cycle
|
|
// REPLICATES and the peer's replicant marches in place. A standing
|
|
// mech's cycle is 0 (the clean forward-stop log: legSum ~3e-8).
|
|
if (bodyCycleSpeed != 0.0f)
|
|
{
|
|
bodyCycleSpeed = 0.0f;
|
|
ForceUpdate(8); // type-3 record: legs stopped
|
|
}
|
|
// RAW (FUN_004a5678 case 0): standSpeed < bodyTargetSpeed -> begin WALKING
|
|
// (5); 0 <= target < standSpeed -> stay standing; target < 0 -> reverse
|
|
// (0x10). (The earlier draft had the comparison INVERTED.)
|
|
distance = 0.0f;
|
|
if (standSpeed < bodyTargetSpeed) // 0x530 < 0x6b4
|
|
{
|
|
SetBodyAnimation(5);
|
|
}
|
|
else
|
|
{
|
|
if (ZeroSpeed <= bodyTargetSpeed)
|
|
{
|
|
break;
|
|
}
|
|
SetBodyAnimation(0x10);
|
|
}
|
|
// FALLTHROUGH
|
|
|
|
case 2: case 3: case 4: case 5: case 8: case 9: case 10: case 0x0b:
|
|
case 0x0e: case 0x0f: case 0x10: case 0x11: case 0x14: case 0x15:
|
|
case 0x1c: case 0x1d: case 0x1e: case 0x1f: case 0x20:
|
|
distance = bodyAnimation.Advance( // FUN_0042790c(this+0x6bc, ...)
|
|
time_slice * globalTimeScale * idleStrideScale, loop);
|
|
bodyCycleSpeed = distance / time_slice; // this+0x6b8
|
|
break;
|
|
|
|
case 1:
|
|
distance = 0.0f;
|
|
break;
|
|
|
|
case 6: case 7: // WalkToRun
|
|
if (bodyTargetSpeed <= bodyCycleSpeed)
|
|
{
|
|
if (bodyTargetSpeed < bodyCycleSpeed)
|
|
{
|
|
bodyCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed < bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed < standSpeed) bodyCycleSpeed = standSpeed;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bodyCycleSpeed += forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed > bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed > walkStrideLength) bodyCycleSpeed = walkStrideLength;
|
|
}
|
|
distance = bodyAnimation.Advance(
|
|
time_slice * (bodyCycleSpeed / walkStrideLength) * globalTimeScale, loop);
|
|
break;
|
|
|
|
case 0x0c: case 0x0d: // StandToReverse
|
|
if (bodyTargetSpeed <= bodyCycleSpeed)
|
|
{
|
|
if (bodyTargetSpeed < bodyCycleSpeed)
|
|
{
|
|
bodyCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed < bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed < reverseSpeedMax) bodyCycleSpeed = reverseSpeedMax;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bodyCycleSpeed += forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed > bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed > reverseSpeedMax2) bodyCycleSpeed = reverseSpeedMax2;
|
|
}
|
|
distance = bodyAnimation.Advance(
|
|
time_slice * (bodyCycleSpeed / reverseStrideLength) * globalTimeScale, loop);
|
|
break;
|
|
|
|
case 0x12: case 0x13: // WalkToGimp
|
|
if (bodyTargetSpeed <= bodyCycleSpeed)
|
|
{
|
|
if (bodyTargetSpeed < bodyCycleSpeed)
|
|
{
|
|
bodyCycleSpeed -= gimpCycleRate * time_slice;
|
|
if (bodyCycleSpeed < bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed < gimpStrideLength) bodyCycleSpeed = gimpStrideLength;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bodyCycleSpeed += gimpCycleRate * time_slice;
|
|
if (bodyCycleSpeed > bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed > gimpSpeedMax) bodyCycleSpeed = gimpSpeedMax;
|
|
}
|
|
{
|
|
Scalar ratio = bodyCycleSpeed / gimpStrideLength;
|
|
if (ratio <= ZeroSpeed) ratio = -ratio;
|
|
distance = bodyAnimation.Advance(
|
|
ratio * time_slice * globalTimeScale, loop);
|
|
}
|
|
break;
|
|
|
|
case 0x16: case 0x17: case 0x18: case 0x19: case 0x1a: case 0x1b:
|
|
Assign(this->motionEventName, ""); // FUN_00408440(this+0x598, "")
|
|
motionEventArmed = 0; // this+0x5a4
|
|
bodyResetLatch = 0; // this+0x658
|
|
deathAnimationLatched = 0; // this+0x650
|
|
bodyStateAlarm.SetLevel(0); // this+0x714
|
|
bodyAnimation.Reset(loop); // FUN_004283b8(this+0x6bc, loop)
|
|
break;
|
|
|
|
default:
|
|
DebugStream << (AnimationNames + bodyAnimationState * 0x3c);
|
|
DebugStream.Emit();
|
|
Verify(False, "Unsupported mech animation!",
|
|
"d:\\tesla\\bt\\bt\\MECH2.CPP", 0x206);
|
|
}
|
|
|
|
return distance;
|
|
}
|
|
|
|
|
|
//###########################################################################
|
|
//###########################################################################
|
|
// AdvanceBodyAnimationAirborne (channel B, jump-capable)
|
|
//
|
|
// @004a5bf8 (MECH2.CPP:0x2E8)
|
|
//
|
|
// Airborne variant of AdvanceBodyAnimation selected by Mech::IntegrateMotion
|
|
// when jump jets are active. Adds a pre-clamp of bodyTargetSpeed to the jump
|
|
// speed limits and handles the FallForward / FallBackward jump cycles
|
|
// (states 0x18/0x19); gimp-to-stand (0x16/0x17) and the lateral falls
|
|
// (0x1a/0x1b) join the normal advance group here rather than resetting.
|
|
//###########################################################################
|
|
//###########################################################################
|
|
Scalar
|
|
Mech::AdvanceBodyAnimationAirborne(Scalar time_slice, int loop)
|
|
{
|
|
Scalar distance = 0.0f;
|
|
|
|
//
|
|
// While in any forward/reverse/gimp *moving* cycle, clamp the target to
|
|
// the jump speed limit for the current gait, then floor at zero.
|
|
//
|
|
{
|
|
int state = bodyAnimationState; // this+0x728
|
|
if ((unsigned)(state - 6) < 2 || (unsigned)(state - 0x0c) < 2
|
|
|| (unsigned)(state - 0x12) < 2)
|
|
{
|
|
if (MovementMode() == 3) // run jump
|
|
{
|
|
if (bodyTargetSpeed > jumpRunSpeedMax) bodyTargetSpeed = jumpRunSpeedMax; // 0x53c
|
|
}
|
|
else // walk jump
|
|
{
|
|
if (bodyTargetSpeed > jumpWalkSpeedMax) bodyTargetSpeed = jumpWalkSpeedMax; // 0x540
|
|
}
|
|
if (bodyTargetSpeed < ZeroSpeed) bodyTargetSpeed = ZeroSpeed;
|
|
}
|
|
}
|
|
|
|
switch (bodyAnimationState)
|
|
{
|
|
case StandingAnimation: // 0
|
|
// STANDING ZEROES THE CYCLE (reverse-stop desync, live-diagnosed
|
|
// 2026-07-13): a REVERSE cadence is NEGATIVE, so the walk-family stop
|
|
// gate (cycleSpeed <= ZeroSpeed) passes while still cycling at full
|
|
// reverse speed, and several stand-entry paths (turn exit, terminal
|
|
// poses) never touch the cycle -- Standing could be entered with a
|
|
// stale bodyCycleSpeed = -2.507 ([gaitSM] state=0 evidence). The master
|
|
// LOOKS still (case 0 never advances the clip) but the stale cycle
|
|
// REPLICATES and the peer's replicant marches in place. A standing
|
|
// mech's cycle is 0 (the clean forward-stop log: legSum ~3e-8).
|
|
if (bodyCycleSpeed != 0.0f)
|
|
{
|
|
bodyCycleSpeed = 0.0f;
|
|
ForceUpdate(8); // type-3 record: legs stopped
|
|
}
|
|
if (bodyTargetSpeed <= standSpeed) // 0x6b4 <= 0x530
|
|
{
|
|
distance = 0.0f;
|
|
break;
|
|
}
|
|
SetBodyAnimation(5);
|
|
// FALLTHROUGH
|
|
|
|
case 2: case 3: case 4: case 5: case 8: case 9: case 10: case 0x0b:
|
|
case 0x0e: case 0x0f: case 0x10: case 0x11: case 0x14: case 0x15:
|
|
case 0x16: case 0x17: case 0x1a: case 0x1b: case 0x20:
|
|
distance = bodyAnimation.Advance(
|
|
time_slice * globalTimeScale * idleStrideScale, loop);
|
|
bodyCycleSpeed = distance / time_slice;
|
|
break;
|
|
|
|
case 1:
|
|
distance = 0.0f;
|
|
break;
|
|
|
|
case 6: case 7: // WalkToRun
|
|
if (bodyTargetSpeed <= bodyCycleSpeed)
|
|
{
|
|
if (bodyTargetSpeed < bodyCycleSpeed)
|
|
{
|
|
bodyCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed < bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed < standSpeed) bodyCycleSpeed = standSpeed;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bodyCycleSpeed += forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed > bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed > walkStrideLength) bodyCycleSpeed = walkStrideLength;
|
|
}
|
|
distance = bodyAnimation.Advance(
|
|
time_slice * (bodyCycleSpeed / walkStrideLength) * globalTimeScale, loop);
|
|
break;
|
|
|
|
case 0x0c: case 0x0d: // StandToReverse
|
|
if (bodyTargetSpeed <= bodyCycleSpeed)
|
|
{
|
|
if (bodyTargetSpeed < bodyCycleSpeed)
|
|
{
|
|
bodyCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed < bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed < reverseSpeedMax) bodyCycleSpeed = reverseSpeedMax;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bodyCycleSpeed += forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed > bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed > reverseSpeedMax2) bodyCycleSpeed = reverseSpeedMax2;
|
|
}
|
|
distance = bodyAnimation.Advance(
|
|
time_slice * (bodyCycleSpeed / reverseStrideLength) * globalTimeScale, loop);
|
|
break;
|
|
|
|
case 0x12: case 0x13: // WalkToGimp
|
|
if (bodyTargetSpeed <= bodyCycleSpeed)
|
|
{
|
|
if (bodyTargetSpeed < bodyCycleSpeed)
|
|
{
|
|
bodyCycleSpeed -= gimpCycleRate * time_slice;
|
|
if (bodyCycleSpeed < bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed < gimpStrideLength) bodyCycleSpeed = gimpStrideLength;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bodyCycleSpeed += gimpCycleRate * time_slice;
|
|
if (bodyCycleSpeed > bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed > gimpSpeedMax) bodyCycleSpeed = gimpSpeedMax;
|
|
}
|
|
{
|
|
Scalar ratio = bodyCycleSpeed / gimpStrideLength;
|
|
if (ratio <= ZeroSpeed) ratio = -ratio;
|
|
distance = bodyAnimation.Advance(
|
|
ratio * time_slice * globalTimeScale, loop);
|
|
}
|
|
break;
|
|
|
|
case 0x18: case 0x19: // FallForward / FallBackward (jump)
|
|
{
|
|
Scalar ratio;
|
|
if (MovementMode() == 3) // run jump: caps 0x53c / 0x544
|
|
{
|
|
if (bodyTargetSpeed <= bodyCycleSpeed)
|
|
{
|
|
if (bodyTargetSpeed < bodyCycleSpeed)
|
|
{
|
|
bodyCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed < bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed < jumpRunSpeedMax) bodyCycleSpeed = jumpRunSpeedMax; // 0x53c
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bodyCycleSpeed += forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed > bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed > jumpRunStrideLength) bodyCycleSpeed = jumpRunStrideLength; // 0x544
|
|
}
|
|
ratio = bodyCycleSpeed / jumpRunStrideLength; // 0x544
|
|
}
|
|
else // walk jump: caps 0x540 / 0x548
|
|
{
|
|
if (bodyTargetSpeed <= bodyCycleSpeed)
|
|
{
|
|
if (bodyTargetSpeed < bodyCycleSpeed)
|
|
{
|
|
bodyCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed < bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed < jumpWalkSpeedMax) bodyCycleSpeed = jumpWalkSpeedMax; // 0x540
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bodyCycleSpeed += forwardCycleRate * time_slice;
|
|
if (bodyCycleSpeed > bodyTargetSpeed) bodyCycleSpeed = bodyTargetSpeed;
|
|
if (bodyCycleSpeed > jumpWalkStrideLength) bodyCycleSpeed = jumpWalkStrideLength; // 0x548
|
|
}
|
|
ratio = bodyCycleSpeed / jumpWalkStrideLength; // 0x548
|
|
}
|
|
distance = bodyAnimation.Advance(
|
|
time_slice * ratio * globalTimeScale, loop);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
DebugStream << (AnimationNames + bodyAnimationState * 0x3c);
|
|
DebugStream.Emit();
|
|
Verify(False, "Unsupported mech animation!",
|
|
"d:\\tesla\\bt\\bt\\MECH2.CPP", 0x2E8);
|
|
}
|
|
|
|
return distance;
|
|
}
|
|
|
|
|
|
//###########################################################################
|
|
//###########################################################################
|
|
// AdvanceLegAnimationAirborne (channel A, jump-capable)
|
|
//
|
|
// @004a71f4 (MECH2.CPP:0x672)
|
|
//
|
|
// Airborne variant of AdvanceLegAnimation. Like the ground version it reads
|
|
// the live commanded speed from the controls subsystem, but here it also
|
|
// CLAMPS that source value to the jump speed limit (writing it back), and
|
|
// handles the FallForward / FallBackward jump cycles (0x18/0x19). No death
|
|
// latch / footstep block; gimp-to-stand and lateral falls join the normal
|
|
// advance group.
|
|
//###########################################################################
|
|
//###########################################################################
|
|
Scalar
|
|
Mech::AdvanceLegAnimationAirborne(Scalar time_slice)
|
|
{
|
|
ReconMotionSource *motionSource = *(ReconMotionSource **)(this->controlSource); // **(this+0x128)
|
|
Scalar distance = 0.0f;
|
|
int mode = MovementMode(); // this+0x40 = simulationState
|
|
int state = legAnimationState; // this+0x3b0
|
|
|
|
//
|
|
// Clamp the source commandedSpeed (motionSource->commandedSpeed, +0x128)
|
|
// to the jump speed cap while in a moving cycle, then floor at zero.
|
|
//
|
|
if ((unsigned)(state - 6) < 2 || (unsigned)(state - 0x0c) < 2
|
|
|| (unsigned)(state - 0x12) < 2)
|
|
{
|
|
if (mode == 3)
|
|
{
|
|
if (motionSource->commandedSpeed > jumpRunSpeedMax)
|
|
motionSource->commandedSpeed = jumpRunSpeedMax; // 0x53c
|
|
}
|
|
else
|
|
{
|
|
if (motionSource->commandedSpeed > jumpWalkSpeedMax)
|
|
motionSource->commandedSpeed = jumpWalkSpeedMax; // 0x540
|
|
}
|
|
if (motionSource->commandedSpeed < ZeroSpeed)
|
|
motionSource->commandedSpeed = ZeroSpeed;
|
|
}
|
|
|
|
switch (legAnimationState)
|
|
{
|
|
case StandingAnimation: // 0
|
|
// STANDING ZEROES THE CYCLE (reverse-stop desync, live-diagnosed
|
|
// 2026-07-13): a REVERSE cadence is NEGATIVE, so the walk-family stop
|
|
// gate (cycleSpeed <= ZeroSpeed) passes while still cycling at full
|
|
// reverse speed, and several stand-entry paths (turn exit, terminal
|
|
// poses) never touch the cycle -- Standing could be entered with a
|
|
// stale legCycleSpeed = -2.507 ([gaitSM] state=0 evidence). The master
|
|
// LOOKS still (case 0 never advances the clip) but the stale cycle
|
|
// REPLICATES and the peer's replicant marches in place. A standing
|
|
// mech's cycle is 0 (the clean forward-stop log: legSum ~3e-8).
|
|
if (legCycleSpeed != 0.0f)
|
|
{
|
|
legCycleSpeed = 0.0f;
|
|
ForceUpdate(8); // type-3 record: legs stopped
|
|
}
|
|
if (motionSource->commandedSpeed <= standSpeed) // +0x128 <= 0x530
|
|
{
|
|
distance = 0.0f;
|
|
break;
|
|
}
|
|
SetLegAnimation(5);
|
|
// FALLTHROUGH
|
|
|
|
case 2: case 3: case 5: case 8: case 9: case 10: case 0x0b:
|
|
case 0x0e: case 0x0f: case 0x10: case 0x11: case 0x14: case 0x15:
|
|
case 0x16: case 0x17: case 0x1a: case 0x1b: case 0x20:
|
|
advance_normally:
|
|
distance = legAnimation.Advance(
|
|
time_slice * globalTimeScale * idleStrideScale, 1);
|
|
legCycleSpeed = distance / time_slice;
|
|
break;
|
|
|
|
case 1:
|
|
distance = 0.0f;
|
|
break;
|
|
|
|
case 4: // WalkToStand
|
|
if (standSpeed < motionSource->commandedSpeed)
|
|
{
|
|
legStateAlarm.SetLevel(0);
|
|
ForceUpdate(8); // type-3 record
|
|
break;
|
|
}
|
|
goto advance_normally;
|
|
|
|
case 6: case 7: // WalkToRun
|
|
if (motionSource->commandedSpeed <= legCycleSpeed)
|
|
{
|
|
if (motionSource->commandedSpeed < legCycleSpeed)
|
|
{
|
|
legCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (legCycleSpeed < motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed < standSpeed) legCycleSpeed = standSpeed;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
legCycleSpeed += forwardCycleRate * time_slice;
|
|
if (legCycleSpeed > motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed > walkStrideLength) legCycleSpeed = walkStrideLength;
|
|
}
|
|
distance = legAnimation.Advance(
|
|
time_slice * (legCycleSpeed / walkStrideLength) * globalTimeScale, 1);
|
|
break;
|
|
|
|
case 0x0c: case 0x0d: // StandToReverse
|
|
if (motionSource->commandedSpeed <= legCycleSpeed)
|
|
{
|
|
if (motionSource->commandedSpeed < legCycleSpeed)
|
|
{
|
|
legCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (legCycleSpeed < motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed < reverseSpeedMax) legCycleSpeed = reverseSpeedMax;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
legCycleSpeed += forwardCycleRate * time_slice;
|
|
if (legCycleSpeed > motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed > reverseSpeedMax2) legCycleSpeed = reverseSpeedMax2;
|
|
}
|
|
distance = legAnimation.Advance(
|
|
time_slice * (legCycleSpeed / reverseStrideLength) * globalTimeScale, 1);
|
|
break;
|
|
|
|
case 0x12: case 0x13: // WalkToGimp
|
|
if (motionSource->commandedSpeed <= legCycleSpeed)
|
|
{
|
|
if (motionSource->commandedSpeed < legCycleSpeed)
|
|
{
|
|
legCycleSpeed -= gimpCycleRate * time_slice;
|
|
if (legCycleSpeed < motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed < gimpStrideLength) legCycleSpeed = gimpStrideLength;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
legCycleSpeed += gimpCycleRate * time_slice;
|
|
if (legCycleSpeed > motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed > gimpSpeedMax) legCycleSpeed = gimpSpeedMax;
|
|
}
|
|
{
|
|
Scalar ratio = legCycleSpeed / gimpStrideLength;
|
|
if (ratio <= ZeroSpeed) ratio = -ratio;
|
|
distance = legAnimation.Advance(ratio * time_slice * globalTimeScale, 1);
|
|
}
|
|
break;
|
|
|
|
case 0x18: case 0x19: // FallForward / FallBackward (jump)
|
|
{
|
|
Scalar ratio;
|
|
if (mode == 3) // run jump
|
|
{
|
|
if (motionSource->commandedSpeed <= legCycleSpeed)
|
|
{
|
|
if (motionSource->commandedSpeed < legCycleSpeed)
|
|
{
|
|
legCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (legCycleSpeed < motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed < jumpRunSpeedMax) legCycleSpeed = jumpRunSpeedMax;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
legCycleSpeed += forwardCycleRate * time_slice;
|
|
if (legCycleSpeed > motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed > jumpRunStrideLength) legCycleSpeed = jumpRunStrideLength;
|
|
}
|
|
ratio = legCycleSpeed / jumpRunStrideLength; // 0x544
|
|
}
|
|
else // walk jump
|
|
{
|
|
if (motionSource->commandedSpeed <= legCycleSpeed)
|
|
{
|
|
if (motionSource->commandedSpeed < legCycleSpeed)
|
|
{
|
|
legCycleSpeed -= forwardCycleRate * time_slice;
|
|
if (legCycleSpeed < motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed < jumpWalkSpeedMax) legCycleSpeed = jumpWalkSpeedMax;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
legCycleSpeed += forwardCycleRate * time_slice;
|
|
if (legCycleSpeed > motionSource->commandedSpeed) legCycleSpeed = motionSource->commandedSpeed;
|
|
if (legCycleSpeed > jumpWalkStrideLength) legCycleSpeed = jumpWalkStrideLength;
|
|
}
|
|
ratio = legCycleSpeed / jumpWalkStrideLength; // 0x548
|
|
}
|
|
distance = legAnimation.Advance(time_slice * ratio * globalTimeScale, 1);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
DebugStream << (AnimationNames + legAnimationState * 0x3c);
|
|
DebugStream.Emit();
|
|
Verify(False, "Unsupported mech animation!",
|
|
"d:\\tesla\\bt\\bt\\MECH2.CPP", 0x672);
|
|
}
|
|
|
|
return distance;
|
|
}
|
|
|
|
//===========================================================================//
|
|
// End of recovered mech2.cpp slice.
|
|
//===========================================================================//
|