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Torso: the TWIST goes LIVE -- electrical watchdog chain, centered crosshair, coherent controls (task #57/#58)

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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>
This commit is contained in:
arcattack
2026-07-13 13:27:49 -05:00
co-authored by Claude Fable 5
parent 065c114590
commit 02cdfd6576
29 changed files with 1112 additions and 124 deletions
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@@ -83,12 +83,24 @@ Identify a class at runtime with `sub->GetClassID()` (== `sub+4`). [T1]
| **0x511830** | **MechWeapon**::ClassDerivations | The reticle AddWeapon loop (part_014.c:5386) hard-aborts on missing WeaponRange/PipPosition/… attrs for every member; part_012.c:9344 counts ready weapons; the Mech ctor roster at this[0x1ef] (`weaponRoster`, ex-mislabel "poweredSubsystems") ORs weapon `capabilityFlags`@+0x334. [T1] |
| 0x50f4bc | PoweredSubsystem | btl4gau2 gauge wave. [T1] |
| 0x50e3ec | HeatableSubsystem | btl4gaug widget gate. [T1] |
| 0x50e604 | HeatSink | btl4gaug widget gate. [T1] |
| 0x50e604 | **HeatWatcher** (task #57 CORRECTION — was "HeatSink") | `HeatWatcher::TestInstance` @4aec38 tests its OWN class vs this tag; the factory watcher-CONNECT loop (slot +0x38) selects on it; the btl4gaug widget gate ORs it after HeatableSubsystem (a HeatSink test there would be redundant — HeatSink : HeatableSubsystem). 0x50e590 = the HeatSinkBank (0xBBE) tag. [T1] |
| 0x51155c | roster at Mech this[0x1eb] (`heatableSubsystems` label) | tag ≠ 0x50e3ec — the label is UNVERIFIED [T4]; arbitrate before relying on it. |
| 0x50e4fc | roster at Mech this[499] (`damageableSubsystems` label) | [T3] |
| 0x50bdb4 | Mech | emitter.cpp destroyed-check. [T1] |
| 0x5121a8 | ProjectileWeapon-family (checked after 0x511830; reads ammo state @+0x364) | [T3] |
### Watcher electrical chain (task #57 — all [T1], several from RAW-BYTE recovery)
| Address | What |
|---|---|
| @004aec54 | `HeatWatcher::CreateStreamedSubsystem` — parses `WatchedSubsystem=<name>` → segment index **+2** at resource+0xE4 |
| @004aee2c / @004b1a40 | vtable slot 14 (+0x38) CONNECT bodies (HeatWatcher / PowerWatcher+Torso, byte-identical): master-gated `watchedLink(+0x114).Add(owner->roster[watchedSubsystem(+0x128)])`. **Ghidra missed both starts** — recovered from raw exe bytes (vtables.tsv rows have GAPS at skipped slots; dump vtable+slot*4 bytes when a slot looks absent) |
| @004b181c | `PowerWatcher::UpdateWatch` — THE registered Performance (PTR @0050f5fc); watchdogAlarm(+0x184) MIRRORS watched subsystem's electrical level (+0x278); brownout→1 when `gen outputVoltage(+0x1DC) <= minVoltage(+0x180) × ratedVoltage(+0x1D8)`. Torso sims call it first-line |
| @004b1804 | `PowerWatcher::ResetToInitialState` (slot 10) — old recon MISLABELED it "Simulation" |
| 0x4b1924 | `MinVoltageScale` — a **10-byte x87 literal** (`0a d7 a3 70 3d 0a d7 a3 f8 3f` = **0.01**); the port had 1.0f → permanent brownout |
| @004b6a78 | `Torso::ReadUpdateRecord` (slot 6; base 41bd34) — REPLICANT apply of twist extras +0x10/14/18. Old recon mislabeled it Write |
| @004b6a1c | `Torso::WriteUpdateRecord` (slot 7; base 41c500) — MASTER serialize; recordLength=0x1C; **Ghidra missed the start** |
| 41bd34 / 41c500 | base Subsystem Read (apply) / Write (produce) update-record fns — engine [T0]: **Write=produce, Read=apply**; don't flip |
---
## 3. Mech struct offsets (`Mech*`, binary layout)