CROUCH reconstruction (WIP): the master posture/duck machine, decoded + wired
Raw-disasm of the dark master-perf region (@0x4a9cf0-0x4aa0af): the myomer effectiveness factor (+0x79c, MAX over heatables' +0x31c, scales speedDemand -- feeder @004b8be3 unreconstructed, neutral 1.0 [T3]), the posture selector (+0x3f8: mode/novice/leg-state/myomer gates -- novices cannot crouch), and the DuckRequest consumer (standing -> SetLegAnimation(2) 'sqd', ducked -> SetLegAnimation(3) 'squ', ForceUpdate 8+1 ships the type-3 state record, stability alarm flips, request consumed). +0x1DC = mountSegment... er, the searchlight learned that one; here: mapPosture @0x3f8 + myomerEffectiveness @0x79c members land; value-space note (port normal mode == 1, binary 0). VERIFIED: request->consumer chain fires ([duck] SQUAT), the sqd clip plays (22kf/7joint, ends root -2.22 crouched -- clip data parsed from BTL4.RES, squ is its exact mirror; loader slot map re-verified byte-exact). OPEN: the parked crouch pose does not HOLD on screen (reverts ~1 frame after clip end with NO SetLegAnimation re-arm logged) -- the hold's render path is the remaining dig; [duck] re-arm tracer left in SetLegAnimation. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Joe DiPrima
co-authored by
Claude Fable 5
Claude Fable 5
parent
b75bb4a04c
commit
dd70061e0e
@@ -4348,6 +4348,95 @@ void
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// and the Standing case returns adv=0 (no motion). Only the LEGACY inline
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// clip-select path (BT_GAIT_SM=0) still needs the throttle gate (it would
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// loop the walk clip forever at idle).
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//
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// ---- MASTER POSTURE / CROUCH (raw disasm @0x4a9cf0-0x4aa0af, the dark
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// master-perf region FUN_004a9b5c; decoded + reconstructed 2026-08-05).
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// Binary order preserved: (1) the myomer factor -> speedDemand scale,
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// (2) the posture selector (+0x3f8), (3) the DuckRequest consumer.
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//
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{
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// (1) myomerEffectiveness (+0x79c): the binary inits 0 then MAXes
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// the heatable chain's +0x31c (healthy myomers publish ~1.0;
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// weapons park transient fireImpulse there) and multiplies the
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// mapper's speedDemand -- dead muscles = a crawling mech. The
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// WRITER (Myomers Performance @004b8be3) is not in the export and
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// stays unreconstructed, so the member holds the ctor's healthy
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// 1.0 and this multiply is a live no-op until that dig lands
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// (neutral-value deferral, the role=NULL pattern). [T3 feeder]
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{
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MechControlsMapper *postureMppr = MappingMapper();
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if (postureMppr != 0)
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postureMppr->speedDemand *= myomerEffectiveness;
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}
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// (2) the posture selector (+0x3f8; feeds the map legend + the
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// duck arbiter). @0x4a9f61-0x4aa007: any non-zero movementMode
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// -> 0; !simLive -> 0 (a NOVICE cannot crouch -- the same +0x25c
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// lockout as the crit roll); leg alarm level 0/4 (standing /
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// turn-in-place idle) -> myomers alive ? 1 : 0 (|factor| <= 1e-4
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// == dead muscles, const @0x4ab16c); level 1 (parked in the
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// squat) -> 2; anything else -> 0.
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{
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extern int BTPlayerExperienceSimLive(void *owner_mech);
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const int postureLegLevel = (int)legStateAlarm.GetLevel();
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// VALUE-SPACE NOTE: the binary tests +0x40 != 0 (its normal
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// running state was 0); the task-#1 unification made our
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// normal the engine ExistingState == 1 (bench: mode=1 while
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// walking around). Same intent -- "no special mode (limbo 2,
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// airborne 3/4, dead 9, eject 10)".
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const int postureMode = MovementMode();
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if ((postureMode != 0 && postureMode != 1)
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|| !BTPlayerExperienceSimLive((void *)this))
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mapPosture = 0;
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else if (postureLegLevel == 0 || postureLegLevel == 4)
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mapPosture = (myomerEffectiveness <= 0.0001f
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&& myomerEffectiveness >= -0.0001f) ? 0 : 1;
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else if (postureLegLevel == 1)
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mapPosture = 2;
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else
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mapPosture = 0;
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}
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// (3) the DuckRequest consumer (@0x4aa011-0x4aa0af), gated on the
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// latched request AND squatCapable ('squ'/'sqd' clips shipped).
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// Duck: SetLegAnimation(2) plays 'sqd'; LegClipFinished case-2
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// parks the pose + sets leg alarm 1. Rise: SetLegAnimation(3)
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// plays 'squ'; case-3 restores alarm 0. Both mark the type-3
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// state record dirty (ForceUpdate 8 then 1 -- it ships legState +
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// stability, so peers pose the squat for free) and flip the
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// stability alarm (ducked = 0, risen = 1). The request is
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// consumed whenever both gates passed, hit or miss.
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if (duckState != 0 && squatCapable != 0)
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{
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if (mapPosture == 1)
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{
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SetLegAnimation(2); // 'sqd' -- squat down
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ForceUpdate(8);
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ForceUpdate(1);
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stabilityAlarm.SetLevel(0);
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if (getenv("BT_DUCK_LOG") || getenv("BT_GAIT_LOG"))
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DEBUG_STREAM << "[duck] SQUAT (posture 1 -> leg clip 2)\n" << std::flush;
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}
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else if (mapPosture == 2)
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{
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SetLegAnimation(3); // 'squ' -- rise
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ForceUpdate(8);
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ForceUpdate(1);
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stabilityAlarm.SetLevel(1);
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if (getenv("BT_DUCK_LOG") || getenv("BT_GAIT_LOG"))
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DEBUG_STREAM << "[duck] RISE (posture 2 -> leg clip 3)\n" << std::flush;
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}
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else if (getenv("BT_DUCK_LOG"))
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DEBUG_STREAM << "[duck] request consumed, posture=" << mapPosture
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<< " (mode=" << MovementMode()
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<< " legLvl=" << (int)legStateAlarm.GetLevel()
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<< " simLive=" << 1 // re-read below costs a bridge call; posture already folded it
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<< " myo=" << myomerEffectiveness
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<< " squat=" << squatCapable << ")\n" << std::flush;
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duckState = 0; // consumed (@0x4aa0a9)
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}
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}
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{
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static const int s_gaitTicksAlways = BTEnvOn("BT_GAIT_SM", 1);
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if (s_gaitTicksAlways || throttle != 0.0f)
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