06adaee523c55c4c2892b797ba3b1b4f8c4d59b8
53
Commits
| Author | SHA1 | Message | Date | |
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 Joe DiPrimaandClaude Opus 5
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06adaee523 |
#110: the zone destruction cascade is LIVE -- an arm now takes its gun pod with it
Lynx: "You can destroy an upper arm, and the gun pod is intact and can still fire." Conn Man's audit: three chassis, both arms, reproducible. And the user is right that this family was claimed fixed before: #86 gated fire on the WEAPON's own destruction and was verified by destroying the weapon directly (BT_KILL_SUBSYS) -- the field scenario was the ARM ZONE dying with the weapon subsystem healthy, which that bench never reproduced. Oracle's 693-night "I can still fire destroyed energy weapons" was almost certainly this mechanism. ROOT CAUSE -- a silent stub. Mech__DamageZone::RecurseSegmentTable @0049cad4 was transcribed faithfully... against three local shim types whose iterators unconditionally return NULL: struct SegmentIterator { DZRef *Next() { return 0; } }; struct SegTableX { SegmentRecord *operator[](int) { return 0; } }; The cascade fired on zone death (bench: 72 [cascade] lines), "descended", and touched nothing. Every line read correct; none of it did anything. THE REAL WALK (decomp re-read, FUN_0049cad4): iterate the mech's segment table (mech+0x300, vtbl+0x34 GetNth) to this zone's segment, then destroySiblingsOnDestruction (Wword 0x68): recurse every other zone on the SAME segment (seg+0xD0), setting graphic state 2 (Gone) descendOnDestruction (Wword 0x67): recurse every zone on every CHILD segment (seg+0xE8 -> child+0xD0) -- the arm takes the gun The engine ALREADY HAS both structures: EntitySegment::damageZoneTable @0xD0 / childIndexTable @0xE8 (TableOf is 0x18 -- byte-identical to the decomp offsets), populated at stream time by JMOVER.cpp:373 [T0]. The stub was never necessary. Implemented with the engine iterators via two new read accessors on EntitySegment (SEGMENT.h); the binary's asymmetry is reproduced as-is (the sibling loop checks graphic state != 1, the child loop does not; re-hits on a 1.0 zone re-run the cascade -- idempotent in effect). VERIFIED (ava1, self-damage to one zone, autofire everything): dz_rarm -> [cascade] zone 9 -> zone 17; AFC100 + AmmoBinAFC100 + Condenser6 ForceCriticalFailure'd; "[ammo] AFC100 -> NoAmmo (gate1): destroyed=1"; torso LRM5/SRM2 keep firing (correct) dz_larm -> [cascade] zone 2 -> zone 6; PPC + Condenser4 force-failed; "[emitter] 'PPC' fire REFUSED (destroyed=1)" x4998 -- the emitter gate now logs refusals BY NAME (the FIRED line never named its weapon, which is how #86's verification gap survived) regression smoke: frame time 7.13/7.20ms, 0 asserts, 0 cascades in ordinary combat (they fire only on genuine zone deaths) Authored data (now dumped under BT_DMG_LOG): descend=1 on exactly the four arm zones (ava1: 2/6/9/17), destroySibs=0 everywhere -- so legs/torso behavior is untouched by this change. KB: combat-damage.md cascade section; reconstruction-gotchas #26 (the silent-stub trap: a shim that returns EMPTY converts a reconstruction into fiction that reads correct -- shims must Fail() loudly or log their emptiness). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Joe DiPrimaandClaude Opus 5
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c23d06cbb5 |
KB: correct the burstCount claim -- it is honoured by the CALLER, not cosmetic
The KB asserted as [T1] that "burstCount is cosmetic for zone damage". Half of that is byte-verified (DamageZone::TakeDamage @0041e4e0 really does ignore it); the other half was an inference that inherited the [T1] tag and then justified task #62's salvo-lead design -- which silently divided every missile salvo by its missile count (gitea #95). Corrected in both places it appeared (combat-damage.md:334 and :884): the CALLER, Mech::TakeDamageMessageHandler @0x4a0423-0x4a04d8, applies TakeDamage burstCount times and re-rolls the struck zone per burst. burstCount = number of applications; load-bearing for missile cluster count, splash falloff and the gyro bounce. Also records that the arcade Missile dispatches DIRECTLY at the victim rather than through the message manager (whose consolidation drops burstCount). New gotcha 24: a verified fact, over-generalised, becomes a wrong design premise. Detection smell -- a "cosmetic/unused" claim about a field other code still computes carefully. Nobody spends instructions randomising a decorative value. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Joe DiPrimaandClaude Fable 5
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5410371b0c |
#86: destroyed weapons can no longer fire -- the fire gates read a
never-written cell (the split-cell gotcha) Both weapon fire gates (ProjectileWeapon gate 1 @4bbd36, Emitter hard-failure @4baab9) test the binary's subsystem+0x40 for Destroyed(1). In the 1995 layout that offset sits INSIDE the embedded status alarm (statusAlarm@0x2C + level@+0x14 = 0x40) -- ONE cell, written by ForceCriticalFailure when a zone's crit cascade kills the subsystem. The port models the same address as TWO members: the AlarmIndicator AND a plain int simulationState@0x40. Every destruction path writes the ALARM (so the MFD draws its X correctly) while the gates read the plain int, which nothing ever writes -- so a weapon on a blown-off arm showed destroyed on every panel and kept firing and scoring, locally and on peers (night-7: all three testers, screenshots of a missile leaving a destroyed pod). The tell had been sitting in our own logs for weeks: [ammo] SRM6_1 -> NoAmmo (gate1): destroyed=0 ... on a mech whose launcher was X'd out. Fix: both gates now read statusAlarm.GetLevel()==1 as well as the int. Also added: the crit-cascade log names the destroyed subsystem, a BT_SELF_DAMAGE_ZONE=dz_* named-zone bench mode, and BT_KILL_SUBSYS=<name> (force ForceCriticalFailure on one named subsystem -- the exact call the zone cascade makes, so a bench can ask 'the panel says dead, does it still shoot?' without hunting for the zone that carries a given weapon). Verified A/B in ONE run: before the kill both SRM6 launchers fired 2 salvos each; after, the destroyed launcher fired ZERO (gate log destroyed=1) while its twin kept firing normally. KB: new gotcha #22 (the SPLIT CELL -- one binary offset, two port members, only one written; sibling of #1) + combat-damage entry. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019Zh7PTkFy4KwTzVighLR9J |
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Joe DiPrimaandClaude Fable 5
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4704ab3d41 |
#84: missiles ACCELERATE like the binary -- the pool flew at constant
rack-eject speed; the authored MissileThruster was never applied The binary Missile hosts a MissileThruster subsystem: authored acceleration for BurnTime seconds after the MuzzleVelocity eject. Authored values decoded from BTL4.RES (type-15 missile model records, reached from the AmmoBin's ammoModelFile via the type-1 MODELLIST indirection): SRM 2.5s @ 600 u/s^2, LRM 10s @ 300 (climb 50), Streak 3s @ 300 (turn 360deg/s), NARC 10s @ 300; splash 30 all (port constant was already right); authored drag ~0.001 = negligible. The port pool flew every round at CONSTANT |MuzzleVelocity| -- SRMs 100 u/s, LRMs 30 u/s (10x slower than authored) -- the entirety of the night-7 "missiles are very slow" report, and the driver of the "explosion before the missiles arrive" perception (the salvo-lead detonates while the slow spread rounds straggle in). Fix: BTMissileThrustOf (mech4.cpp) lazily parses + caches the RES thruster table (ModelList ids aliased to their type-15 member's burn/accel); both launch paths (master FireWeapon + the replicant salvo mirror -- peers see the same speed) resolve through the launcher's bin and pass burn/accel into the pool; the advance integrates speed += accel*dt while burn remains, heading preserved. Ballistic rounds (autocannon/gauss) pass 0/0 -- unchanged. Impact log now prints v=/burnLeft= evidence. Verified live (solo, BT_SPAWN_ENEMY + BT_AF_MISSILE): thrust table 8 entries cached; Black Hawk Streak resolve burn=3 accel=300; impacts at v=277 u/s (was a constant 100). Fun authenticity note: the Black Hawk's "SRM6" fires strk (STREAK) ammo per its authored bin. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019Zh7PTkFy4KwTzVighLR9J |
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Joe DiPrimaandClaude Fable 5
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37dd7f9663 |
collision-pricing audit: restore the binary's crash economy -- two fixes
A. KNOCKDOWN PACING: the 0.4s gBlockCooldown contact-hysteresis is gone. It suppressed the crash knockdown for as long as contact was held, letting the kinematic drive re-slam the obstacle at full commanded speed EVERY FRAME -- continuous full-price crash self-damage, a healthy 65-tonner dead in ~2-3s of grinding (the night-7 SAURON ram death, 110 priced frames at |v|~34.7). The binary needs no guard (crash threshold @0x4ab178 read from the exe = 0.0, dispatch per blocked frame is authentic): the bmp clip zeroes the drive, and a pressed mech re-triggers the knockdown at v>6.3 long BEFORE its grind can price anything -- the type-0 divert's 0.5-pt free floor needs v>~18.5 at 65t. Wall grinding is free taps + paced staggers; only genuine fast arrivals pay. B. RAW RAM DISPATCH: the *0.001 "ram economy normalization" (2026-07-12) predated the #83 type-0 divert and became a double-normalization -- the victim's divert scale (~4e-5) compounded with it, so NO physically possible ram could clear the 0.5-pt free floor: rams were a no-op against the victim while the rammer's own un-scaled crash path rattled for real. The binary dispatches raw [T1 @part_012:15324]; the divert IS the normalizer. Also un-starves cultural-icon crunches (trucks now crush on contact per their authored armor, not after ~19 bumps). Bench (scratchpad/night7/mp_rampricing.sh): - wall leg: 150s full-throttle wall push = 125 paced knockdown binds (~1.2s cadence, iv2 40-43), 4767 crash frames ALL under the free floor, 0 rattle, 0 deaths (pre-fix: dead in seconds). - ram leg: BT_GOTO=enemy + BT_GOTO_STOP=2 rams the peer; raw amount arrives byte-identical on the victim (66239.1 tx == rx), victim prices 2.55 pts internal rattle (first ram damage to a victim in the port's history), pressed follow-ups free, 0 deaths both nodes, 108 knockdowns -> exactly 108 type-5 records on the observer (no skating regression). KB swept: combat-damage.md (the 1.3e6 moverMass mis-attribution corrected to the measured 60-90k tonnage scale), locomotion.md, rendering.md. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019Zh7PTkFy4KwTzVighLR9J |
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Joe DiPrimaandClaude Fable 5
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14ff3519ac |
#83: the COLLISION DIVERT -- type-0 damage prices as internal rattle, never armor
The crash self-damage reconstruction (
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Joe DiPrimaandClaude Fable 5
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8a99972f22 |
aimed fire strikes the part under the crosshair: the per-segment pick (#73)
The port's target pick was a whole-mech bounding-box slab test, and every hit -- aimed or not -- dispatched zone -1 into the victim's cylinder lottery. The recovered 1995 model (the division-card scene intersection) struck a SEGMENT and credited that segment's own damage zone. This is the port's equivalent. At render-tree build, each segment's draw object and its PrimaryDamageZone -- authored per segment in the skeleton stream, read by JMOVER.cpp:290 -- are recorded in MechRenderTree::segPick. The pick (BTL4VideoRenderer:: MechSegmentPick) ray-tests the per-segment bounding spheres on the live posed skeleton, using the draw-cached mLocalToWorld (at most one frame stale, fine for aiming). Selection is SPECIFICITY-FIRST: among the spheres the ray pierces, the smallest radius wins, normalized-distance tie-break. Both obvious rules were measured failing the same way before this one: the torso mesh's sphere (r~4.1 on the MadCat, vs shoulders at r~1.0) envelops nearly the whole mech, so its front face is nearest for any aim AND any near-body ray normalizes to ~0 against it. Limb spheres nest inside the envelope; smallest-pierced picks the most specific part on the aim line, and the torso wins only when no limb is threaded -- the per-part semantic the pod's mesh test produced. mech4.cpp tries the segment pick per candidate; the box PickRayHit survives only as the fallback (no tree yet, wrecked, spectator), still carrying zone -1 into the lottery, and a structure occlusion clears the zone. The winner's zone rides MECH_TARGET_SUBIDX + targetReticle.targetDamageZone into SendDamageMessage, so aimed hits now dispatch a real zone; the victim's handler applies it directly (bursts 2+ still re-lottery, authentic per the recovered @0x4a0230 loop). Bench, the same L/C/R sweep that exposed the bug: aiming left now lands 36/41 hits on zone 2 = jointlshoulder -- the left arm -- with a 0.30 thread score, where the same aim was a 6-way lottery spray before. The MadCat's authored segment->zone map is rich (shoulders 2/9, guns 6/17, hip 1, six leg zones, torso 0). Known approximations, flagged for field verification: sphere bounds rather than triangles, and a torso-envelope graze credits the torso where the pod's exact mesh test would have missed into air. The field protocol is the one the testers already ran on night 6: stationary mechs, short range, fire only at one arm -- the paper doll should now damage THAT arm. Diag: BT_PICK_LOG ([segpick] map at build, [pickwin] per pick). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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Joe DiPrimaandClaude Fable 5
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e110b10ac8 |
the #73 pick dig, part 2: there was never a software pick -- the division card cast the ray
The hunt for the un-decompiled pick writer ends with the reason no scan could
find it: it does not exist. In 1995 the pick was a DPL SCENE INTERSECTION run
by the video board. The evidence converges from five directions:
- The WinTesla renderer still carries the result slots: dplHitInstance /
dplHitDCS / dplHitGeoGroup / dplHitGeometry + vehicleReticle, NULL-inited
in the ctor and never fed by the port.
- The stubbed 1995-era renderable constructors each took dpl_isect_mode_obj
("type of intersections to do on this object") plus an intersection MASK
-- every scene object was configured for ray queries.
- Auric, quoted in the KB long before this dig: "the pod's division card
cast from the view."
- VGL Lynx's night-6 LOD warning ("the hit test may run against a different
LOD") reads as firsthand knowledge: the ray tested the DRAWN geometry.
- Exhaustive byte- and pseudocode-level scans: nothing in the binary writes
rayIntersection/targetEntity/targetDamageZone. Game code only reads them,
constructs them (the Mech ctor @0x4a1674 -- identified this dig, along
with vtable +0x18/+0x1c = Mech::Read/WriteUpdateRecord, nine replication
groups, reticle not among them), gates them (FUN_004afd10, the look-state
machine: per-view crosshair positions, the pi rear case, the per-weapon
rear-fire mask walk), and ships them to the board for drawing
(FUN_00460a7c packages rayIntersection + elementMask into dpl).
What this means for #73: aimed fire in 1995 had PER-PART precision -- scene
ray, struck triangle on the active LOD, the DCS is the segment, the segment's
dzone is the credited zone. The cylinder lottery was only ever the UNAIMED
path. The port's whole-mech box pick funnels aimed fire through the unaimed
lottery, which is exactly what three testers documented on night 6: aim at
the arm, get the spray.
Fix design recorded in the KB: a per-SEGMENT ray test on the shooter side
(inverse(segmentWorld) * ray vs each segment BGF's local extent box, nearest
wins, its dzone dispatched as the aimed zone), falling back to box+lottery
when no segment resolves.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Joe DiPrimaandClaude Fable 5
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bcbc7cff12 |
the #73 pick dig, part 1: mech+0x36c is an embedded engine Reticle -- the writer is still at large
Chasing the un-decompiled targeting pick (the residual of #73). The hunt for "who writes mech+0x37c/0x388/0x38c" kept coming back empty for a structural reason now understood: those three fields are the tail of an embedded ENGINE Reticle struct at mech+0x36c (RETICLE.h lays out position/state/pickPointingOn/ rayIntersection/targetEntity/targetDamageZone/elementMask, landing exactly on 0x37c/0x388/0x38c). Writers carry &mech->reticle and use small reticle-relative offsets, invisible to any mech-relative displacement scan. T0 corroboration, ENTITY3.h:131: "For BattleTech, damage zones are only valid via reticle based weapons." Ruled out as the writer: the engine Reticle itself (passive container -- ctor and resource parse only); HudSimulation @0x4b7830 (holds &owner->reticle in esi for its whole body but only READS the pick -- range caret, designator transform -- and slews reticlePosition via the @0x4b7ed4 ease); the 0x482xxx sites (mission-table target bookkeeping, address-of computations); the gyro coefficient reads at 0x4b2c24/5c/6e (that class's own +0x370..0x38c table). Still dark, with the candidates mapped: the un-exported 0x4a1674-0x4a2d48 stretch (reticle-touching at 0x4a16a5 in the Make-time init, 0x4a1f93, and a state+pickPointing+base trio at 0x4a294a-61 near entry 0x4a2971), the two unidentified Mech vtable overrides +0x18/@0x4a122c and +0x1c/@0x4a0c2c (both big switch functions), and a few lone sites. One of these computes the authentic pick; recovering it answers whether the pod tested the aim ray against the mech's cylinder (as the damage table's geometry suggests) or a box like the port's stand-in. Recorded in combat-damage.md \xc2\xa7Targeting so the next session starts from the map instead of the empty scans. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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Joe DiPrimaandClaude Fable 5
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a5fb96ae96 |
the crit system, complete: two gap functions recovered, the dead sink revived, and a wrong verdict reversed (#80)
The whole critical-hit pipeline was dark, three layers deep, and one of those
layers had fooled us into a false conclusion about the 1995 binary itself.
LAYER 1 -- the trigger, recovered from the un-exported gap. The Mech MESSAGE
TABLE at 0x50bdf8 ({id, name, handler} rows) names the real
Mech::TakeDamageMessageHandler at 0x4a0230 -- message 0x12 "TakeDamage" --
plus seven sibling handlers (PlayerLink, RealMaxSpeed, BalanceCoolant,
Set/ClearBurningState, EjectPilot, DuckRequest). Inside it, the crit chance
at 0x4a0164: p = clamp(0.7 * damageLevel^2 + 0.01, 0..1), gated on the
player's simLive flag (+0x25c -- novice never crits), rolled PER BURST on the
current zone, skipping a zone already burning. Chance is ~1% on fresh armour,
~18% at half-stripped, ~58% at 90% -- crits arrive exactly as armour fails.
The handler's application loop replaces the engine base's single call, which
ignored burstCount entirely (multi-burst damage under-applied (burst-1)x).
Faithful shape: per burst, crit-roll -> CriticalHit @0049ccc4 (which routes
half the amount through the armour internally and picks ONE critical
subsystem by criticalWeight) else zone->TakeDamage -- then RE-RUN the
cylinder lottery from the impact point for the next burst, stopping early
once the mech is disabled. Multi-burst damage sprays across zones by design.
LAYER 2 -- the sink. MechSubsystem::TakeDamage was an empty btstubs stand-in;
the real body is at 0x4ac0bc (CLASSMAP had that address mislabeled
"HandleMessage"): zone damage, then on level >= 1.0 the Destroyed alarm, the
PrintState gate, the 1.0 pin, and -- for a vital subsystem -- the owner
mech's graphicAlarm to level 9, the same fall/death level the leg path
raises. That is the #28 vital-subsystem kill machinery, now real.
LAYER 3 -- the one that rewrites yesterday. The subsystem ctor DID copy
armour points + per-type scales into the private zone -- through the
ReconDamageZone PROXY, whose fields sit at struct offsets +4/+8, not the
binary's +0x140/+0x144. The floats landed on the engine object's header and
the real damageScale[] stayed zero. The 2026-07-28 experiment that "proved"
subsystem zones cannot be damaged -- and that the Myomers un-powered
self-repair was dead code in the original -- was measuring exactly this port
bug. Both verdicts reversed: the binary ctor (0x4ac7bb) initializes the zone
from the resource keys WeaponDamagePoints (required) + CriticalHitScoreBonus
(required) + Collision/Ballistic/Explosive/Laser/EnergyDamagePoints, none of
which the CSS parsed. Now parsed (with the binary's own error strings), and
the ctor writes the engine's NAMED members -- layout-parity holds, so they
land on +0x140/+0x144 faithfully. The Myomers repair branch is LIVE, in 1995
and here. KB corrected and swept (combat-damage, subsystems WAVE 6,
myomers.cpp, CLASSMAP).
Live-verified twice: [subarmor] prints real parsed scales for every subsystem
at spawn (HeatSink pts=10 scale=0.1x5, Condensers pts=5 scale=0.2x5, ...);
[critroll] landed full-chain crits in both runs (zone -> weighted pick ->
subsystem's own zone driven to 1.0 -> Destroyed); mech death/respawn and the
ammo gates un-regressed; zero crashes/asserts. Honest gaps: burst>1 spraying
is transcribed but not yet exercised live (self-damage fires burst=1), the
damageType==0 COLLISION divert (@0x49ffcc) is documented-not-reconstructed,
and the id-0x16 damage/kill report messages to the players (the authentic
stats plumbing, decoded to field level in the KB) are deferred to the #45
work.
Diags: BT_CRIT_LOG ([subarmor] + [critroll]), the existing BT_DMG_LOG.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Joe DiPrimaandClaude Fable 5
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f7cf9850b1 |
crit panel: the roll has no caller and the sink is a stub -- filed as #80
Night-6 observation (Conn Man, with screenshot): armor panel showing damage,
Critical damage display showing no crits. Investigated; it is a real port gap
in three layers, stacked on one authentic fact.
The authentic fact: the paper doll shows per-ZONE armor tint and the Critical
view is a per-SUBSYSTEM list. Different data by design -- the panel staying
dark while armor accumulates is correct right up until a subsystem takes
critical damage.
The gap: subsystem critical damage essentially cannot happen.
1. Mech__DamageZone::CriticalHit @0049ccc4 -- the authored roll, half the
hit to armour, half to one critical subsystem by criticalWeight -- has
ZERO callers in the port. A raw byte-scan of the binary finds exactly
one call site, @0x4a0461, and it sits in the un-exported decomp gap
(nothing covers 0x4a03xx-0x4a05xx, the same dark region as the
targeting-pick writer). The trigger conditions are unknown.
2. MechSubsystem::TakeDamage is an empty bring-up stub (btstubs.cpp:179),
so even a wired caller would measure a delta of zero through
ApplyDamageAndMeasure.
3. The only live crit sources are zone destruction (SendSubsystemDamage)
and ammo cook-off (DistributeCriticalHit), which pin subsystem damage
directly -- so the panel can light after a zone is destroyed outright,
never from accumulating fire.
#28 (the vital-subsystem-crit death path) very likely shares this root and is
cross-linked. Recovery plan on #80: raw-disasm the 0x4a04xx container for the
trigger, dump MechSubsystem vtable 0050e210 slot +0x24 for the real TakeDamage
body, wire both.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Joe DiPrimaandClaude Fable 5
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a5dd0eabc5 |
issue #73 investigated: zone selection is a weighted lottery -- per-limb aiming never existed
Night-6 report: three players, controlled conditions, "fired only at the left arm, damage credited all over the paper doll, no crits". Chased it to the bottom and the bottom is the authored 1995 model, working as designed. The zone a hit credits is chosen by dice, in binary-faithful code reading binary-shipped tables (dmgtable.cpp, stream format byte-verified): impact point -> height layer (floor(layerCount*y/heightRef)) -> pie slice (atan2(z,x) around the vertical axis, optionally rotating with live torso twist) -> DamageZonePercentTable::SelectZone() = RandomUnit() rolled against cumulative percent thresholds (@0x49de14). Every slice carries an authored DISTRIBUTION of zones. Aiming at a limb at best biases which slice you strike; the zone inside it is a weighted roll. Pixel-precise limb damage does not exist in Tesla 4.10. Measured live to be sure the code read was real: solo dummy, walked to 8u, aim pinned left/center/right across the silhouette, trigger held. 24-46 hits per aim point, each spread across 6+ zones (the percent tables), with the distribution shifting by aim point (the slice selection responding). Both halves of the model visibly working. What remains genuinely open, and is now the whole of #73: the shooter's pick point comes from Mech::PickRayHit, a whole-mech AABB slab test -- a port stand-in, since the binary's 0x37c/0x388/0x38c writer sits in an un-exported gap nobody has decompiled. Theta computed from a flat box FACE clusters toward the slices facing the shooter, so flank slices (presumably arm-heavy) may be under-reachable from frontal shots compared with the pod, which plausibly intersected the mech's cylinder -- the damage table is literally cylindrical. Deciding that needs a per-hit theta probe and a one-shot wheel dump; if confirmed, the fix is a ray-vs-cylinder pick replacing the box slab. Filed on #73 with the plan. KB: combat-damage.md gets the lottery model as a load-bearing triage fact -- "damage landed somewhere I didn't aim" now has a documented base rate, and crit expectations from aimed fire are probabilistic by design. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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Joe DiPrimaandClaude Fable 5
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ca6718a876 |
turrets: correct the record -- the props are scenery, but PGN is a real turret that was cut
Amends what
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Joe DiPrimaandClaude Fable 5
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0534e93eec |
the level turrets are scenery: TurretClassID is a red herring, 0xBDE is ThermalSight
Playtest question: "many levels have turrets/cannons that don't fire, aren't those supposed to shoot at players?" Chased it properly because the enum really does look like a smoking gun. engine/MUNGA/VDATA.h:209 declares TurretClassID as the LAST entry of the BT block -- right after MechTechClassID, immediately before the ND section -- which is exactly where a real BattleTech class would live. And the mech factory has a live `case 0xbde:` for it (part_012.c:10186). Both of those point the wrong way. That enum slot computes to 3038 = 0xBDE, and 0xBDE in the shipped runtime is ThermalSight: ctor @4b8718, already reconstructed and done in thermalsight.cpp. Same enum-vs-runtime label drift CLASSMAP already records for HUD and MechTech at 0xBD6/0xBDC, which is why the rule is to resolve the ctor address and never trust the factory case label. The case is also in the mech SUBSYSTEM factory (roster param_1[0x4a]), not an entity factory, so it could not spawn a world object even if the label were right. Everything else agrees. There is no `class Turret` anywhere in the engine or the port. BTL4OPT.EXE contains zero occurrences of turret, sentry, emplac, brain, patrol, aggro, hostile or npc (the apparent "ai"/"bot" hits are substrings of failureheat and verticallimitbottom). jointturret, which looked promising, is a skeleton joint on OWN/PGN/STI with own_tur.bgf -- a mech turret-torso, not a world gun. And the destructible world classes in CULTURAL.h -- Landmark, CulturalIcon, UnscalableTerrain -- have no weapon, fire or target members at all; they take damage and break, and that is the whole of it. So the turret and cannon models in the maps (TT1/TT2/TWR/TK1/APC, each with a D damaged variant) are scenery. They did not fire in 1995. Making them fire would be inventing a feature rather than reconstructing one, and it would need an entity class, a targeting model and a threat model that the binary has no trace of -- which is consistent with the standing T1 finding that BT shipped no AI at all and is PvP-only by design. Written up in combat-damage.md next to the No-AI section, since the enum is convincing enough that someone will find it again. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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Joe DiPrimaandClaude Fable 5
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819772f974 |
the rest of the Myomers wrapper: two live outputs recovered, and one branch that never fires
Follow-on to |
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arcattackandClaude Fable 5
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5ae4410914 |
Gitea #46: ammo bay fire now DETONATES and KILLS (+ #47 fire icon) -- three stacked kill-switches removed, the fuse decoded, and a vptr-alias corruption caught by regression
Field report (night 3): "two ammo bay fires and no death" (Cyd + RajelAran; one
purged, one left burning). Root cause = THREE independent kill-switches stacked
on the same path, all in ammobin.cpp:
1. `GameClock::Now() { return 0; }` -- `cookOffTime < Now()` was `0 < 0`, so
an ARMED bay fire never detonated.
2. `InjectHeat(void*) {}` -- the detonation body was a no-op.
3. The bin's Damage record was never stamped -- 0 damage of type 0 (which the
mech TakeDamage handler drops) even if 1+2 had fired.
THE FUSE (raw disasm, scratchpad/disammo.py): the old "RandomDelay" was a Ghidra
carve artifact -- FUN_004dcd94 is __ftol and the export DROPPED the caller's x87
expression. The real bytes @004bd450: fld 10.0 / fmul [ticksPerSecond] /
fadd 0.5 / __ftol -- a FIXED 10.0-SECOND fuse in clock ticks. New gotcha #19
(reconstruction-gotchas.md) documents the __ftol export blind spot.
THE DAMAGE RECORD: bin+0x1F0..0x21C is a real engine `Damage` (FUN_0041db7c IS
Damage::Damage(), byte-matched to T0 DAMAGE.cpp). The linked ProjectileWeapon's
ctor @004bc3fc stamps it from weapon->damageData @0x3A8 via
owner->roster[0x128][res+0x1C0] -- projweap.cpp's old comment called this "the
bin's HUD display block ... wired in the AmmoBin family"; both halves were wrong
and it was wired nowhere. Now stamped (before MissileLauncher's ctor divides by
missileCount -- a missile bin authentically holds the per-SALVO amount).
THE DETONATION (@004ac274 = MechSubsystem::DistributeCriticalHit -- the old
"HeatableSubsystem::InjectHeat" label was wrong, and the old reconstruction
iterated a stand-in CriticalChain whose First()/Next() returned 0):
statusAlarm pulse Exploding(2)->Destroyed(1) (slot 13 = the printSimulationState
state PRINT @004ac8c0, not an "explosion notify"), own private zone pinned
destroyed, then collect the mech DamageZones whose crit entries plug the bin
(the binary filters plug classID 0x4E = DamageZoneClassID -- VDATA.h idx 78,
cross-checked via idx 28 = AudioStateTrigger), split the amount evenly, and send
the OWNER one full Entity::TakeDamageMessage per zone: inflictingEntity = SELF,
damageZone = the zone index, inflictingSubsystemID = the bin (the message-
manager explosion-bundling key, ENTITY3.h's own NOTE), printing the binary's
exact "ammo explosion damaging <zoneName>" @0050df61.
Port shape: Mech::AmmoExplosionFanOut (mechdmg.cpp) behind a databinding bridge;
guarded deviation: zoneCount==0 warns instead of the binary's unguarded divide.
CriticalChain/CriticalEntry stand-ins DELETED from mechrecon.hpp.
VERIFIED LIVE (BT_BAYTEST hook = message 1, the crit-induced arm channel):
scratchpad/baytest.py : arm -> 10s -> "20 rounds x 35 = 700 (type 2)" ->
"ammo explosion damaging dz_ltorso" -> zone cascade -> mech DESTROYED
(authentic death list).
scratchpad/baypurge.py: arm -> eject-hold purge -> "bay fire EXTINGUISHED
(bin empty)", no detonation.
scratchpad/sim3.py : the HEAT route arms organically in combat (overheated
AFC100), detonates "11 x 25 = 275 (type 1)" split across dz_larm + dz_lgun.
BAYBOOM matchlog record added for MP field forensics.
FIX-OF-THE-FIX (caught by the sim3 regression, would have shipped a crash):
MechSubsystem's ReconDamageZone proxy puts structureLevel at OFFSET 0 -- which
ALIASES THE REAL DamageZone's VTABLE POINTER (the private zone is `new
DamageZone`, mechsub.cpp:154; mechsub.hpp:260 documents the alias). My first
DistributeCriticalHit kept the old body's `damageZone->structureLevel = 1.0f`
and OVERWROTE THE ZONE'S VPTR with 0x3F800000; the respawn sweep's virtual
SetGraphicState (vtable+0xC) then called through it -> AV at 0x3f80000c in
RespawnRepair, one frame after a bay-fire death. ALL EIGHT proxy-view sites in
mechsub.cpp swept to the engine view (((DamageZone*)damageZone)->damageLevel
@0x158) -- including two silently-wrong LIVE readers: GetStatusFlags (vptr as
float -> always "intact") and ApplyDamageAndMeasure (the crit cascade's
measure). Ruled out first by evidence: the weapon->bin stamps were all clean
(six stamps, all classID 0xbcb, logged).
#47 (half 1 -- the FIRE ICON): BallisticWeaponCluster::Execute @004c9a38 reads
bin+0x18C = cookOffArmed into the btefire.pcc TwoState, and while armed computes
(Now - cookOffTime)/ticksPerSecond -- the COOK-OFF COUNTDOWN -- into the numeric
beside it. The old reconstruction misread 0x18C as "the reload state" and
bridged the icon to BTAmmoBinFeeding, so it blinked on every feed and never lit
on a bay fire (RajelAran: "it doesn't"). Now driven by the
BTAmmoBinCookOffArmed/CookOffTime complete-type bridges. [T2 -- the data path
is rig-verified; the pixels await the next live session.]
#47 (half 2 -- the ENG-BUTTON FLASH): fully mapped, deliberately NOT built this
session. The authored data SHIPS (BTL4.RES carries exactly one type-31
GaugeAlarmStream); the chain is alarm SetLevel -> gauge-watcher socket ->
Renderer msg 7 -> GaugeAlarmManager::Activate @00448d00 (T0) -> the BTL4
override @004cc148..@004cc2fc (btl4galm.cpp's provenance note claiming "no
override body exists" is WRONG -- corrected in-file) -> LampManager::FindLamp
@00444c80 -> Lamp::SetAlertState @00444e64 (flash counter) -> the L4 flush
@00474e94 emitting flashFast states 0x37/0x13 (== T0 L4LAMP.cpp:234-239).
Missing: the override bodies, the gauge-watcher sender, the aux-button lamps.
3-piece plan in context/open-questions.md.
Also logged: HandleMessage is vtable slot 8/9 in the binary but NON-virtual
across 10 reconstruction classes (bit the BT_BAYTEST hook; typed call used, gap
documented in open-questions).
KB: combat-damage.md (the full cook-off section), decomp-reference.md (the
cluster addresses + the GaugeAlarm/lamp map + BT_BAYTEST env), gauges-hud.md
(the fire-icon correction), reconstruction-gotchas.md #19 (__ftol),
open-questions.md (2 entries), btl4galm.cpp provenance correction.
checkctx CLEAN. 40 LNK2019 unchanged (the two pre-existing families).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Opus 4.8
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02a41f165f |
Issue #27: projectiles carry the weapon's real damage type (ballistic)
Playtest matchlog forensics: across 2,591 applied-damage events in two rounds, Ballistic (type 1) damage NEVER appeared -- Collision/Explosive/ Laser/Energy only -- despite 136 projectile impacts and autocannon/Gauss mechs. The weapon parses its authentic damageData.damageType correctly (mechweap.cpp:316 maps "BallisticDamage" -> 1), but BTPushProjectile never carried the type and every projectile-impact site in mech4.cpp hardcoded ExplosiveDamageType. So autocannon/Gauss rounds were scaled against armor by damageScale[Explosive] instead of damageScale[Ballistic] (the model indexes a distinct scale cell per damage type) -- every ballistic weapon did the wrong damage all night. Lasers/PPCs were unaffected (their SendDamageMessage path carries the weapon's own damageData); missiles happen to BE Explosive so only autocannon & Gauss were mis-scaled. BTProjectile gains a damageType field, threaded from the firing weapon (damageData.damageType) at launch through to the impact dispatch; missiles resolve Explosive from their own streamed type, autocannon/ Gauss now resolve Ballistic. The missile-splash template stays Explosive. Enum is anonymous so the field casts to Enumeration. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
70eea6c1a4 |
Boresight parallax FIXED + the #4/#5 verdict instrumentation (Gitea #16, #4, #5)
PARALLAX (#16): the pick/fire ray was anchored at mech.y+5.0 (a port improvisation) while the sight line ran from the eyepoint (y=6.23) -- two parallel rays whose constant offset grew into the reported low-miss as range closed (measured ry +0.072 @50u -> +1.54 @2.7u). The decomp's sight and pick share the eye origin (HudSimulation @4b7830 chain). Fix: the viewpoint mech's cockpit eye owns the aim-camera publish in BOTH views, origin = its own eye translation; leveling + deliberate elevation untouched; chase view now converges to cockpit ballistics (V cannot change where shots land). After: pick pinned to the crosshair (ry <= 5e-6) from 50u to point-blank; 26 laser + 8 missile center-mass hits at 3/4-screen. Awaiting the reporters' approach-test. VERDICT INSTRUMENTATION (#4 closed authentic, #5 verdict posted): BT_RANGE_LOG per-frame pick tracing + BTGroundRayHitExact analytic cross-check (0/8000 arena fall-throughs; cavern 6/8400 single-frame grazes -- the 'crazy sliding' is the authentic world-pick + 500 m/s slide over depth discontinuities); BT_AUD_TAIL StopNote/fade timing + BT_FIRE_PULSE single-shot driver (the energy 'buzz' is the AUTHORED charging loop: crescendo through recharge, 1.309s authored release, measured within one frame). CAVERN.EGG: solo cavern test egg. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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6f6a39b8c9 |
Issue #3 (b)+(c): weapon damage reaches cultural icons -> full trkdead explosion + authored burn fire
(b) The 'tiny explosion' on the ram kill is AUTHORED: crunch res 31 = 'stephit'
(one video object, effect 1008 = ddam5 damage smoke) -- a step/ram squash is
small by design. The FULL explosion res 32 = 'trkdead' = psfx 15 dtrkboom
(fiery omni burst) + psfx 16 dtrkburn (the burning-wreck fire), reached by
WEAPON kills -- which the 1995 binary dispatches [T1]:
- MechWeapon::SendDamageMessage @004b9728 (part_013.c:6765) gates only
"target NOT derived from Mech@0x50bdb4 OR aimed zone set": a non-Mech
boresight target takes the zone=-1 damage UNCONDITIONALLY;
- Missile contact @004be078 dispatches at the struck solid's OWNER entity
with no class test at all.
Port wiring: Mech::WorldStructurePick returns the struck solid's owning entity
(BoxedSolid::GetOwningSimulation; TERRAIN.cpp:107/246 build every static solid
with its Terrain/CulturalIcon/Door entity as owner); the mech4 pick block
designates IT instead of the gBTTerrainEntity sentinel (sentinel = fallback);
the projectile contact path grew the non-mech damage-zoned else-branch
(@004be078 mirror, direct Dispatch). Plain terrain ignores the damage
(ENTITY.cpp:885 zone==-1 guard); an icon's handler maps -1 -> 0 and dies.
Truck armor is WeaponDamagePoints=1 (TRK.DMG): one laser = one dead truck.
(c) The burning fire is dtrkburn.pfx, authored INTO the death package (every
icon family carries 1016: trkdead/bigdead/meddead/msldead/twrdead). There is
NO looping BurningState fire in the binary: the damage-zone effect watcher
ctor @0042a984 has exactly one call site (the Mech ctor, part_012.c:10405), so
icon ExplosionTables are inert, and CulturalIcon has no Performance.
Documented as authentic -- nothing invented.
Verified live (BT_SHOT pixel capture): 26 laser kills, [cult] TakeDamage
type=3 -> DYING res=32 -> DPLIndependantEffect 1015+1016 at the icon origin;
frames show the orange dtrkboom fireball, dtrkburn flames on the fresh wreck,
and the rubble aftermath; ram harness re-run still fires crunch res 31.
Diags: BT_FIRE_AT_ICON (designate nearest ahead icon; live-icon census in
CULTURAL.cpp), BT_FX_TEST="1015,1016".
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Opus 4.8
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224092aaff |
KB: reconcile the context system with the day's work
- decomp-reference.md: the binary ATTRIBUTE-TABLE section -- 16-byte
{id,name,off+1,0} row format (alignment warning), the walker technique,
and the three recovered tables (Mech ids 21-56 incl the corrected
EyepointRotation@0x360 / RearFiring@0x410 / DistanceToMissile@0x400
labels; HeatSink 3-12; Torso 3-15; the weapon RearFiring 'b' marker).
- combat-damage.md: the REAR-FIRE + look-view system (roster survey: the
Blackhawk's ERMLaser_2/3 are the game's only rear weapons; every missile
rack forward), the missile mount-frame launch truth, and the BANKED
full Missile flight-model decode (three performances, proximity fuse).
- wintesla-port.md: post-Phase-4 closures (instability model live, F14
static filter baked, the footstep warm-up bug + its trace-cap lesson);
deferred list trimmed to F21/HRTF.
- AUDIO_FIDELITY.md: status block -- F14 FIXED, warm-up bug noted.
- open-questions.md: "which mechs used rear fire" answered from data;
remaining look-view key bindings noted.
checkctx: CLEAN.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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arcattackandClaude Opus 4.8
|
d1ce99402f |
KB: code-first sweep of stub/stand-in claims -> 2 more STALE fixed
Targeted pass on "stand-in / not-wired / stub / no-op" claims, verified against
CODE + runtime (not KB wording -- the trap that hid the peer-warp staleness):
- combat-damage.md STEP-6 "remaining = fix ResourceFindByName no-op -> empty
table" (reads present-tense above the "STEP 6 COMPLETE" header): STALE. The
table LOADS live ([cyl] table 'bhk1'/'madcat'/'ava1' layers=7); the name-load
BYPASSED the no-op ResourceFindByName via SearchList(type=0x14) (mech.cpp:1631).
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arcattackandClaude Opus 4.8
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82e6bb306a |
KB: sweep STALE "unfinished" claims -> match landed commits (context-system audit)
4-agent audit cross-checked every open/pending/stub/deferred claim in the context system against git + code. Fixed ~13 stale spots (currency only, no code change), each contradicted by its own file body + a landed commit: - 0xBD3 SubsystemMessageManager (task #7, |
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arcattackandClaude Opus 4.8
|
aab7a8a137 |
Combat: FIX weapon effectiveRange -- it degraded with heatLoad, not host-zone damage (task #50)
MechWeapon::UpdateTargeting computed effectiveRange = (1 - heatLoad) * weaponRange, reading the weapon's own inherited HeatableSubsystem heatLoad. The authentic decomp (@004b9bdc:6983) reads *(weapon+0xE0)+0x158 = Subsystem::damageZone->damageLevel -- i.e. effectiveRange = (1 - HOST-ZONE DAMAGE) * weaponRange. Same @0xE0-DamageZone-vs- heat misattribution already corrected in HeatSink::UpdateCoolant (heat.cpp:803). Impact: for a charge/discharge weapon (ER laser) the weapon's OWN heatLoad swings 0..1 every fire cycle, so effectiveRange collapsed toward 0 and the weapon was perpetually "out of range" -> Emitter::FireWeapon's `if (dist <= effectiveRange)` gate skipped SendDamageMessage -> NO damage submission and hence NO impact explosion. The beam still rendered (beamFlag/beamEndpoint set before the gate), so the shot LOOKED like a hit but did nothing -- the user-reported "lackluster/absent laser hits, esp. the ER medium, on mechs AND buildings". PPCs mostly worked only because their heatLoad happened to sit low/stable. Fix: read the QUALIFIED this->Subsystem::damageZone->damageLevel (the MechSubsystem shadow is a shim -- heat.cpp:812) so an UNDAMAGED weapon holds its full, STABLE weaponRange, and range shortens only as the weapon's host zone takes battle damage. Verified (parked in range of a building, autofire): laser effRange 500 STABLE (was fluctuating 0/59/340/424 -> mostly out of range); impact explosions 13 in 22s (11 laser id=16 + 2 PPC), up from ~2. Lasers now consistently damage + spawn FX. Also adds env-gated diagnostics used to root-cause this: [fireW] range trace + per-weapon explID (emitter.cpp), and BT_FIRE_AT_STRUCT (mech4.cpp) which designates the nearest world structure so weapon-vs-structure fire can be tested without the screen aim ray. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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arcattackandClaude Opus 4.8
|
de8f6d02c1 |
MP: world structures (garages/walls) TARGETABLE -- boresight ray-tests the static collision tree (task #50)
The boresight's non-mech pick only sampled the VISUAL heightfield (BTGroundRayHit), which on arena1 is a single flat 'sky'-named ground mesh (and class-42 BuildTables likewise holds only 'sky') -- so shots passed THROUGH the garages/walls and only mechs moved the HUD range axis (user-reported regression: "buildings used to move the range axis; now only mechs do, and you can only fire at a peer"). Real fix: the boresight now ALSO ray-tests the ZONE'S STATIC COLLISION SOLID TREE -- the same geometry that already blocks the mech's walk. Authentic engine mechanism: Mover::FindBoxedSolidHitBy already tests the static world via zone->GetCollisionRoot()->FindBoundingBoxHitBy(line). Factored its "static world" tail into Mover::FindStaticSolidHitBy(Line*) (static solids only, no movers), wrapped by Mech::WorldStructurePick(start,dir,range,&hit) (builds the world-space Line, reads the entry point back via line->FindEnd since HitByBounded clips line->length=enter). Boresight pick order is now: closest MECH (PickRayHit, damage zones + lock) -> closest STRUCTURE (WorldStructurePick; occludes a mech BEHIND it; designates the gBTTerrainEntity sentinel + entry point, so the range caret reads the structure distance and NO lock ring draws, mech4.cpp:4529) -> flat ground (BTGroundRayHit) -> sky (fire-at-nothing). Also un-skips arena1's misnamed-'sky' flat ground so the ground tier works (btvisgnd geometry-aware skip + [mapent]/[rendent] census). Verified headless: a BT_WSWEEP horizontal ray-fan on arena1 tracks position (3/24 hits near the boundary -> 17-21/24 inside the interior garage cluster -> 3/24 past it = DISCRETE interior solids, not an enclosing box), no crash/assert/AV. Interactive aim (BTGetAimRay) can't run headless (no window -> noRay), so the sweep is the headless proof; interactive aim is user-verified. Note: FindBoundingBoxUnder (the ground/containedByNode BoundingBoxTree) is DOWNWARD-only (gravity/ground-snap: *height = FindDistanceBelowBounded), useless for a horizontal boresight; the static SOLID tree's FindBoundingBoxHitBy is the only ray-vs-world query. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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arcattackandClaude Opus 4.8
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a9c0d2c854 |
Combat: FIX splash mis-routed onto the direct victim via the msgmgr (task #62)
User: struck a mech ~4x, still standing -- but the [dmghit] trace showed the DIRECT victim taking 16 applications for 8 impacts while the intended splash bystander took 0. Root cause: BTApplySplashDamage delivered splash through the shooter's SubsystemMessageManager::AddDamageMessage, which CONSOLIDATES every damage message of a frame onto the FIRST hit entity (commonDamageInformation. entityHit, messmgr.cpp:279). The direct hit registered the primary as the common entity, so the bystander's splash was consolidated onto the primary too -- the excluded direct victim took 8 direct + 8 mis-routed splash = 2x, and the real bystander took nothing. Fix: deliver splash with a DIRECT e->Dispatch to each victim, matching the T0 source (EXPLODE.cpp:246 target_entity->Dispatch); Dispatch reroutes cross-pod for a replicant on its own. Verified (BT_DMG_LOG): 8 impacts -> 8 dmghit on the direct victim + 8 on the bystander (was 16/0); no death; per-hit 5.83. KB: combat-damage.md warns not to route splash through the consolidating msgmgr. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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arcattackandClaude Opus 4.8
|
fa0b825b60 |
Combat: FIX missile direct damage 6x over-application -- damage once per salvo (task #62)
User live regression: missiles killed a mech in ~2 shots ("takes way more than 2
normally"). Root cause -- DamageZone::TakeDamage (arcade @0041e4e0 == WinTesla
DAMAGE.cpp:379) is `damageLevel += amount*scale` and IGNORES burstCount. So the
arcade's ONE cluster Missile per trigger lands its damageAmount EXACTLY ONCE; the
missileCount/burstCount split is cosmetic for zone damage (only gyro-bounce +
splash-falloff read burstCount). The port re-expresses that one cluster as N
flying rounds and was damaging on EVERY round = ~missileCount x too lethal on the
direct hit (mirrors the splash over-application fixed in
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arcattackandClaude Opus 4.8
|
145a69f865 |
Combat: FIX missile splash over-application -- once per salvo, not per round (task #62)
Live regression: a clustered bystander died in ~2 missile salvos ("suddenly
lethal"). Root cause, not authentic: the arcade fires ONE cluster Missile per
trigger (burstCount=missileCount) doing ONE SplashDamage event with baseBurst =
missileCount, floored at 1 ONCE. The port re-expresses that cluster as N flying
BTProjectile rounds, and task #62 fired splash PER ROUND -- each baseBurst=1,
each floored at 1 -- so the distance floor was applied N times = ~missileCount x
too much splash.
Fix: BTProjectile.splashBurst tags ONLY the salvo-lead round. MissileLauncher::
FireWeapon passes nmiss (the cluster count) on i==0 and 0 on every other round;
the contact + world-impact splash hooks fire only when splashBurst>0, using it as
baseBurst. One splash event per salvo with baseBurst=missileCount -- matches the
single arcade cluster missile. Replicant mirror rounds carry 0 (damage 0 too) so
the master's cross-pod splash isn't doubled. AC unaffected (not a MissileLauncher;
splash_burst defaults 0).
Verified headless (BT_SPAWN_ENEMY=2 clustered rig, 45s): bystander now takes 6
splash events (1/salvo, baseBurst=6) and SURVIVES (was ~2 shots); primary dies to
direct hits in ~3 trigger pulls (36 missiles == single-enemy TTK); AC does not
splash; no crash. Also: BT_SPAWN_ENEMY read as a COUNT (=2 clusters a bystander
within SplashRadius) for eyeballing splash; entity-id logging on [enemy]/[splash].
KB: combat-damage.md documents the N-round cluster trap.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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arcattackandClaude Opus 4.8
|
12fbc023a8 |
Combat: MISSILE SPLASH DAMAGE -- Explosion::SplashDamage reconstructed (task #62)
Area-of-effect blast on missile detonation, from the T0 source EXPLODE.cpp:50-254 (@0042fad0) + the arcade decomp. Fires on ANY missile impact (world or mech) -- the +0x360 gate sits in the Missile::Perform collision branch (part_013.c:10097). Only missiles splash; the AC's tracer is not a Missile. Radius source CORRECTED: it is the ROUND's own GameModel (type-0xf) +0x50, seeded from the launcher's linked AmmoBin ammoModelFile @0x1e8 (part_013.c:8778) -- NOT the launcher's ExplosionModelFile (which resolved to 0). Live-resolved radius = 30 for both MP missile launchers; 0 for AC/Emitters. Burst falloff = baseBurst / dist^exp floored at 1 (arcade 1.25 = decomp 0x3ff40000; WinTesla EXPLODE.cpp:209 drifted to 1.2f). damageType/amount pass through unchanged; only burstCount, radial damageForce, and impactPoint are set. Excludes shooter + direct victim; dist>radius gated; delivered via msgmgr (cross-pod) or Dispatch. New: BTResolveSplashRadius / BTApplySplashDamage (mech4.cpp), hooked at both the world-impact and contact detonation paths; BTAmmoRoundModelResource bridge (ammobin). Env: BT_SPLASH_LOG, BT_SPLASH_TEST (synthetic near-miss), BT_AF_MISSILE (missile autofire). Verified: near-miss dist=15 -> 1 burst to a bystander; live missiles detonate + exclude the direct victim; AC does not splash; no crash. Deferred (T3): per-player enable sub-gate missile+0x360 = BTPlayer+0x264 (writers read as a per-frame toggle, not a config flag) -- port treats SplashRadius>0 as the enable. KB: combat-damage.md + open-questions.md updated. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
267059ab88 |
Damage economy RECONCILED: 3 stand-ins fixed, 3 paths confirmed authentic (task #60)
Full 5-path audit of the damage economy vs the decomp (5-finder + adversarial-verify workflow), resolving the KB self-contradiction the binary-coverage audit flagged. CONFIRMED AUTHENTIC as-is (no change needed): - Energy beam (emitter.cpp): damagePortion = authored DamageAmount x (charge/seekV)^2; the ctor x1e7 and fire x1e-7 cancel (_DAT_004bafbc dumped from the exe = x87 80-bit 1e-7 exactly). - Autocannon (projweap.cpp): full authored DamageAmount from resource +0x19C delivered unmodified; the 0.0625 at :667 is the shooter's own gyro recoil, not the round. - Zone-armor BASE model: damageLevel += amount x damageScale[type] (engine DAMAGE.cpp:379, called mechdmg.cpp:427), legs x0.5, 1.0=dead. 3 STAND-INS FIXED (all byte-verified against the decomp): - A. mechdmg.cpp:451 -- read the phantom `stance` member (no binary offset, zero writers -> perma-0), so the leg-shot-out -> fall/death branch was DEAD. Now MovementMode() (mech+0x40, @part_012.c:6910). - B. mechdmg.cpp:458 -- guarded the leg partial-failure graphic on the always-0 IsAirborne() stub where the binary calls IsDisabled() (@0049fb54 = movementMode 2||9). On a wreck the binary SUPPRESSES the write; the stub let it corrupt graphicAlarm 9->4/3 -- the task-#52 wreck-graphic bug, now fixed AT SOURCE (was only masked by the IsMechDestroyed latch). - C. mech4.cpp:1551 -- flat kShotDamage=12 fed as the kill-score damageAmount (the KB self-contradiction: task #8 claimed it retired, but it was live). The score handler @0x4c02e4 derives the whole kill award from it, so every kill scored identically regardless of weapon. Now lastInflictingDamage -- the real killing-blow magnitude, latched in TakeDamageMessageHandler (mech.cpp:624), mirroring the per-hit path (mech4.cpp:1207). The phantom `int stance` slot is reused for the new Scalar member (size-neutral, no layout shift); init 0 in the ctor. DEFERRED (task #60-D, documented): the missile CLUSTER model -- the port fires N flying rounds (net armor total authentic) vs the binary's ONE missile with a random burstCount cluster roll (loses cluster variance + single-zone concentration). Blocked on an OPEN decomp semantic (does burstCount multiply armor or only the gyro kick? settle at FUN_004bef78 -> FUN_004be078 -> EXPLODE.cpp:209-210). VERIFIED live: clean build; 2-node fight -> clean center-mass kill (no crash, kills 0->1); [zone-armor] dump confirms per-zone armor 50-140 + legs x0.5. NB the displayed POINTS score still reads 0 -- a SEPARATE open gap (scoreAward + role/team/tonnage multipliers unwired); fix C corrected the damage INPUT to that formula. KB swept: open-questions.md (self-contradiction resolved + task #60 summary + deferred missile item), combat-damage.md (damageScale is type-indexed not even/odd; task-#52 source fix; kill-score section), RECONCILE.md (missile = ONE spawn not N), stale comments in mechweap.cpp (SendDamageMessage is LIVE), mislanch.hpp, mechdmg.cpp (FUN_0049fb54 = IsDisabled). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
02cdfd6576 |
Torso: the TWIST goes LIVE -- electrical watchdog chain, centered crosshair, coherent controls (task #57/#58)
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> |
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arcattackandClaude Fable 5
|
065c114590 |
Impact-FX FORENSICS wave: the i860 specialfx engine, per-round detonations, the ram economy closed
The "we're off the rails" reinvestigation -- a 5-thread evidence workflow
(logs / PFX data / RES model lists / decomp / port audit) + the i860 firmware
decode, then surgical fixes. Every claim tiered; the wrong turns are on the
record in the KB alongside the corrections.
THE OLD-STYLE SPECIALFX ENGINE [T1, firmware-decoded from VREND.MNG]:
rebuilt scratchpad/i860dis.py (binutils opcode table); mapped the dispatch
(data+0xdd0c; sfx trigger 0xf040cda0, install 0xf040cdc0, step ~0xf0413698,
instance init 0xf04128d8); decoded the heat model EXACTLY: per 30Hz board
frame h *= cool_a; RGB_ch = h_old*(h_new*cook_ch - 0.25) + 0.25 (K=0.25 =
the ember floor @VA 0xF080; kill at h <= 1e-4 @0xF0A0); alpha fades cool_b
x RAW dt (PER-SECOND -- the x30 scaling made laser hits invisible); 7s cap;
y_off = the kill plane; "variance" is DEAD DATA (binary reads "variance",
INI authors "varience"). The 13 descriptors (PPCHit/LaserHit/MissileHit/
Chunks/Sparks/Fireball...) parse from BTDPL.INI and render via the BTPfx
layer -- heat bursts draw the FIERY sheet (brightness over fire), .PFX keeps
GRAYSCALE (authored colours: DNBOOM orange, DDAM gray).
HIT-PACKAGE CENSUS [T1, RES byte-verified]: ppchit=[8] lzrhit=[9] mghit=[7,11]
canhit=[11] mslhit=[10,12,1023] explode=[6]; all 8 mech death lists identical.
Effect routing corrected in BOTH consumers: <100 = specialfx, >=1000 = psfx.
"SILVER MIST x5" ROOT CAUSE: SHKWAVE.PFX (mslhit's 1023) authors maxIssue=5
relPeriod=0.2 rate=1 -- the ONE file where rate contradicts the window; the
emitter trusted rate -> 5 shells at exactly 1Hz. Emission rate now always
maxIssue/releasePeriod.
PER-ROUND DETONATIONS [T1 @004bef78]: every missile round spawns its own
ExplosionModelFile at ITS impact (hull + terrain) -- a volley ripples 12
fireballs like the demos; rack-tube launch spread [T3] (GUIDED rounds only --
the slot-0 deflection sent every AFC100 shell 3.4deg left/2.5deg down: the
phantom "4th gold beam"); replicant salvos detonate too (launcher index rides
the visual push). Missile damage bundles through the shooter's messmgr with
the launcher's subsystemID (mslhit fires at the consolidated point; the
binary's dedup CONFIRMED [T1 @0049b784] -- a workflow agent's per-record
claim REFUTED by direct decomp read).
DAMAGE-BAND SEMANTICS [T1]: MechDeathHandler fires the CURRENT band effect on
any damage rise (the binary's changed-flag coalescing) -- a mauled mech under
fire smokes/burns per hit; bands 3/4 are authored fire plumes.
THE RAM ECONOMY -- CLOSED (3 layers, measured live):
1. armor = POINTS (every zone: damageScale = 1/armorPoints, armor 50-140;
the [zone-armor] BT_DMG_LOG dump);
2. StaticBounce prices rams with authored moverMass ~1.3e6 -> ~59,000 pts
@10m/s; the binary dispatches it RAW but pod MP dropped it on the local
replicant (MECH.CPP:986 warns) -- ram damage was NETWORK-INERT; our
task-#47 replicant forwarding surfaced it as a one-shot. Port
normalizes x1e-3 to the point economy [T3];
3. contact EDGE (ramLastVictim/ramContactLinger): the binary's bounce made
separation implicit; our gait-derived velocity re-priced full rams at
60Hz (the respawn explode-loop). One bump = one hit; pressed = BLOCK.
PLUS: sfx size x0.5 + 1.25m visibility floor + hot-phase occlusion [T3];
particle pool 2048->8192 (missile traffic starved laser bursts -- the
"intermittent effects"); replicant beam aging (a lost beam-END record pinned
a stale beam on forever); UV-variant noise stamps (mask-safe mirror/swap);
no scroll on particle stamps (material-path only); BT_FX_TEST/fxshot.py
self-verification harness ([beam-draw]/[zone-armor]/[collide-tx] telemetry).
KB: rendering.md (specialfx engine + census + closeout), combat-damage.md
(ram economy + band semantics).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Fable 5
|
48c9c8444f |
Fire VISUALS wave: the authored firesmoke sheet, vertex-alpha effect cards, the case-4 wreck dressing
The "fireballs like the demo vids" arc, decomp/content-grounded end to end,
plus the live-play UX batch verified over the same sessions:
FIRESMOKE SHEET (the PFX fireball fix): every firesmokeN_scr_tex in BTFX.VMF
maps the SAME 64x64 tileable noise image bintA (variants differ only in SCROLL
rate) and firesmoke1_mtl colours it through the "fiery" ramp (0.3,0.1,0.1)->
(0.9,0.7,0.3). The particle layer now bakes ramp(lum(bintA)) as its sprite
colour (noise detail in alpha) and SCROLLS it at firesmoke1's authored rate
via a texture-transform; the port's radial soft-edge mask moved to a second
CLAMPed stage so the WRAPPED scroll rolls flame through the sprite without
scrolling the edge away. Old grit x radial bake kept as the no-BINTA fallback.
Impact hits, damage-band smoke and death booms all ride this layer.
AUTHORED TEXTURE SCROLL in the model path: the BMF TEXTURE records carry
SPECIAL " SCROLL u0 v0 du dv" (tag 0x2037); the draw path always supported
per-op scrolling (SetTextureScrolling) but the BGF loader never parsed it, so
every scrolling material rendered frozen. Wired TexRef -> MatInfo -> batch ->
L4TEXOP.doScroll: the flame cards (flamebig/fire5) now roll fire noise.
VERTEX-ALPHA EFFECT CARDS (the "twisted drill bit of fire" fix): FLAMEBIG's
verts carry authored float RGBA -- white-hot base (1.0,0.99,0.97) -> dark-red
tip fading to alpha -0.2 (the DPL clamp convention). The loader kept a flat
batch colour and drew it OPAQUE = a solid orange spike. Corpus sweep: exactly
14 shipped BGFs carry vertex alpha, ALL effect cards (flames, MUZFLASH,
EXDISK_A/B/C, TMST_A/B/C, beam models, DECLOUDS). Such batches now keep the
authored per-vertex gradient and route to the alpha-blend pass, unlit,
colour = texture x gradient, alpha = the vertex fade; sky objects excluded
(drawAsSky + alphaTest passes NEITHER pass filter -- DECLOUDS stays in the
sky pass). MUZFLASH/EXDISK render correctly for free when the muzzle-model
work lands.
WRECK DRESSING (the 1996 ExplosionScripts case-4 transcription): pieces spawn
HIDDEN and reveal 0.25s after the boom (the InstanceSwitch delay, behind the
dnboom flash); flamebig hangs over the pile, Y-BILLBOARDED at the camera
(SetOffsetYaw + a camera-pos getter -- the dpl_SetDCSReorientAxes analog);
the MakeDCSFall settle arms at the reveal with the two authored rates (hulk/
debris -0.025 t^2, fires -0.01 t^2 -- the flames ride above the sinking pile
and die with it at burial). EMPTY-PLACEHOLDER hulk guard: THRDBR.BGF is a
153-byte zero-geometry stub that "loads fine" -- vertex-count check now routes
it to the gendbr fallback (a Thor wreck was invisible). Hulk content census
recorded: AVADBR==MADDBR==VULDBR geometry (palette-only prefix diffs),
RAPDBR==SNDDBR==STIDBR byte-identical -- wreck variety is materials + the
dressing, not unique piles.
LIVE-PLAY BATCH: muzzle resolve uses the named segmentIndex (raw +0xdc read
was layout garbage); forward launch frame (authored MuzzleVelocity +Z vs the
mech's -Z facing); dock-bottom single window (gauge strip appended below the
world viewport, 1100x600 default, BT_DEV_GAUGES_WINDOW=1 restores the separate
window); portrait sec surface unrotated CW; ammo counters live via typed
bridges (BTAmmoBinCountPtr/BTAmmoBinFeeding/BTWeaponAmmoBin -- raw bin+0x180
and a hand-rolled link walk were garbage); fourth fire key ('4' = Pinky);
panel/arc probes de-aliased (%61 prime).
KB: rendering.md (vertex-alpha card family + scroll), combat-damage.md (hulk
census + THRDBR stub), gauges-hud.md (ammo bridges).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Fable 5
|
bb795e2805 |
MP live-play wave: collision economy, missiles, radar transform, panel polarity, comm ticker
The interactive 2-node playtest wave -- every fix decomp-grounded and live-verified: COLLISION ECONOMY (the ram one-shot): StaticBounce mutates worldLinearVelocity per contact and ProcessCollisionList walks EVERY touched solid per frame; with 2007 terrain-as-solids the reflections compounded x4-x40 within one frame and a walking bump one-shot a pristine mech for 112,375 pts (62-pt authentic economy). Fix: frameEntryWorldVelocity restore per contact (damage always priced at the real approach speed -- all the binary's physics ever saw); Mech::Reset zeroes the mover motion (respawn = teleport); [collide-tx]/[mp-hdlr] telemetry. Gotcha #16 (engine-facility drift class). MISSILES: peer-visible salvos (the launcher record extension carries a salvo counter + aim point; ForceUpdate actually enqueues it -- the dirty flag alone never serialized), the authentic arc (authored MuzzleVelocity vector + the Seeker's 200m/0.1/300 loft + gain-4 steering, decoded from @004beae4/@004bef78), world-impact bursts (rounds detonate on cave geometry instead of phasing through), contact-only damage (flight-cap expiry = fizzle, no more teleport damage), live re-lead, and ballistic (unguided) shells for autocannons. projweap's stale BTPushProjectile extern (the /FORCE signature trap, gotcha #6 corollary) crashed the Avatar's first AFC100 shot -- fixed + sweep rule recorded. RADAR: two transcription bugs made the scope permanently empty -- FUN_0040b244 is the affine INVERSE (not a copy) and FUN_0040adec writes ONLY the 3x3 rotation (never the translation); worldToView now Invert(view) built rotation-first. CulturalIcons sorted out of the moving grid (the phantom red pips were map props), visible-radius culls on all three draw passes, live pip verified at |delta| x ppm px. Gotcha #17 (verify the FUN_ body, not its call shape). WEAPON PANELS (the frozen-dial hunt): the binary's *(subsystem+0x40) means FAILED -- the recon's 'operating' name was backwards, inverting the destroyed-X lamps, the panel look, the children enable and the ready-lamp gate (which had NEVER executed). Polarity chain corrected end-to-end (failedState, fed by real damage saturation). Root cause of the freezes: MFD page-mode gating -- the dev composite shows ALL pages at once, so off-page dials legitimately stopped; under BT_DEV_GAUGES the 15 page-plane bits stay active (the exclusive secondary trio untouched). The SEH gauge guard now names its kills; repaint-heal resets the incremental arc after panel repaints; [panel]/[arc] probes added. COMM/SCORE: MessageBoard LIVE (the engine already shipped the whole Player__StatusMessage queue; wired the binary's one producer -- the kill branch, victim's name, 6s -- plus the consumer bridge and a lazy source bind); MP DEATHS counted via the observed-death tally (each node scores every pilot from locally observed events, the same model as the KILLS credit) and the -2/-1 engine seed clamped for display. DEV UX: node-tagged window titles (-net port), gauge panel reworked (1320x480, true 4:3 MFD cells, the portrait secondary UNROTATED upright, linear filtering, BT_GAUGE_SCALE), fixed close spawns via BT_SPAWN_XZ, Boreas flies an Avatar (first second-chassis live outing). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
001ca16af9 |
KB: crit-propagation landing recorded (task #2)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
e8b9f71025 |
KB: task #1 landings -- update-record channel DONE, movementMode=simulationState identification swept
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
3c34ae6de6 |
KB: full staleness audit + sweep -- 35 verified corrections across 16 topics, 15 new glossary terms
Adversarially-verified audit (18 agents) against the task #46-#56 landings: MP/current-state understatements, superseded punch readings, retired env gates, dead paths, line-cite drift; env-gate hub table completed. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Opus 4.8
|
83b3f31957 |
Whirlwind respawn: authentic death->drop-zone->recreate cycle (task #52)
Death transition (mech4) now dispatches VehicleDead(-1) to the owning player; BTPlayer::VehicleDeadMessageHandler restructured to the authentic @004c05c4 three-way branch: -1 = death bookkeeping + sever playerVehicle (wreck stays) + 5s re-post; >=0 = engine drop-zone hunt -> DropZoneReply -> CreatePlayerVehicle (new mech); -2 = the acquire probe. Guarded on a DropZones group so a zone-less mission stays dead instead of aborting. Three latent bugs the respawn path exposed, all fixed: - IsMechDestroyed latched on graphicAlarm>=9 alone; a later leg hit on the wreck rewrites the alarm to 4/3, un-latching -> the death transition re-ran (double kill/score, abort). Now latches on movementMode 2||9. - Score handlers dereferenced the severed playerVehicle during the dead window; guarded. - The console score flush routed a NetworkClient::Message through the player's Entity::Dispatch, which stamps entityID past the smaller struct -> /RTC1 stack overflow. Sent via application->SendMessage instead. - Renderer LoadMission re-entry (per viewpoint-make) re-read the env INI; its light block Fail'd on stale sceneLightCount. Reset it in DPLReadEnvironment so the respawn's second read is clean. Verified 2-node self-drive: B killed repeatedly by A respawns each time (wreck stays), ticks + reloads + takes fresh damage on the new mech, no abort/hang across multiple death->respawn cycles. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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305c928923 |
Death effects dispatch at the victim's death transition (task #42)
User report: enemy takes hits, starts smoking, then beams pass through -- no more damage, no death. Root cause: the death-effects dispatch (blhdead explosion chain + wreck swap + KILL score) lived in the SHOOTER's laser fire block kill check. A missile killing blow lands frames later in BTUpdateProjectiles -- outside that block -- and after task #41 the boresight pick skips a dead mech, so the fire block never ran against it again: the death chain was silently skipped, leaving an internally-dead, smoking, standing, invulnerable mech. Fix: the dispatch moved to the VICTIM's own once-per-death transition (UpdateDeathState's movementMode->9 moment) -- fires exactly once for ANY kill source (laser, missile, collision). Killer id for the Explosion message = lastInflictingID (the task-#31 bookkeeping). The BT_ENABLE_TEARDOWN cdb harness was removed with the old block (findings preserved in docs/HARD_PROBLEMS.md). Verified headless (75s soak, missile-heavy kill): destroyed -> 'blhdead' id=22 -> wreck swap 'blhdbr.bgf' -> smoke re-arm -> sink -> buried INERT; post-death picks fall through to terrain; 0 crashes. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
e30a61a62f |
World-pick targeting: 0x388 = whatever is downrange -- mech, terrain, or nothing (task #41)
User video evidence (lasers firing at nothing) + the colleague's
torso-locked report + the binary all reconcile into one model:
The boresight pick hits the WORLD, and the target slot mech+0x388 holds
whatever entity is downrange:
- enemy mech under the boresight -> aimed target (hull point -> STEP-6
zone under the boresight, hotbox + lock ring, damage);
- else the TERRAIN downrange (BTGroundRayHit to 1200) -> the beam and
missiles fire at the scenery ("firing at nothing", as in the pod
videos), range caret reads the ground distance (authentic :5639), no
damage;
- else (sky) -> no target, and the weapon's own double 0x388 gate
refuses the discharge.
Binary evidence for non-mech targets: HudSimulation :5620 explicitly
handles a target WITHOUT damage zones (target->0x120 == 0) -- dead code
if only mechs were ever targeted. The pick is automatic every frame
(0x388: 11 reads / 0 direct stores in CODE).
Implementation: gBTTerrainEntity captured in MakeEntityRenderables
(Terrain::GetClassDerivations); mech4 pick = enemy PickRayHit else
ground ray -> terrain entity + ground point; damage/hotbox/lock only
for the mech pick; the task-40 enemy auto-converge REMOVED (facing away
now fires at the scenery, not magically at the enemy -- the user's
complaint). Verified all three states headless (BT_AIM 0,0 / .6,.5 /
0,-.8): aimed zone hits / terrain beams + 0 damage / no discharge.
Fourth (and evidence-complete) targeting model iteration; KB updated.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Fable 5
|
60ed54e008 |
Auto-target fire model: firing needs a target, NOT a manual lock/pinpoint (task #40)
Colleague: you fire without a lock, at "nothing." Double-checked the binary: - The weapon fire path is DOUBLY gated on mech+0x388 != 0: EmitterSimulation (FUN_004baa88:7689) only calls FireWeapon with a target, and FireWeapon (FUN_004bace8:7727) wraps its whole body -- including beamFlag(+0x46c)=1 -- in the same check. So no target => no beam, literally (cannot fire into truly empty space). [T1] - BUT a capstone scan of the entire CODE section finds 11 READS of +0x388 and ZERO direct stores: the target is written INDIRECTLY (a message/selector), i.e. AUTO-acquired -- there is no manual lock to fire. The spinning-ring LOCK (HudSimulation 5619-5634) is a separate, stricter state. So the colleague is right that no lock is needed; my port was wrong to gate firing on a pinpoint boresight-on-hull pick. Fix: mech+0x388 = the enemy whenever it is ALIVE (auto-target); firing needs only that. A pinpoint hull hit upgrades the shot to aimed-zone damage + the lock ring; off-hull with the enemy present, the beam converges on centre mass (body hits). Third correction from over-reading the RP-shared Reticle struct (after sticky-lock and mouse-cursor). Verified: BT_AIM="0.5 0.2" (off-hull) -> fires + lands damage (was 0 before); BT_AIM="0 0" (centred) -> HOT-aimed zone hits. KB swept; checkctx CLEAN. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
a8a56c57c9 |
Targeting correction: reticle = TORSO BORESIGHT, not a free mouse cursor (task #39)
Colleague flagged that targeting is torso-locked with no fine cursor. Correct: the pod stick's yaw drove the TORSO TWIST (MechControlsMapper -> HUD::SetFreeAimSlew(stick_x) @cockpit+0x28C, gated on torso-horizontal-enabled; hud.hpp:167) and reticlePosition @HUD+0x1FC is COMPUTED by HudSimulation from the mech pose quaternion + target geometry, zeroed to centre with no target (part_013.c:5680) -- never a free-floating cursor. The engine Reticle struct is general (shared with Red Planet); BT drives it from the torso boresight. Fix: - Removed the mouse-cursor slew (a mis-sourced stand-in from the RP-shared struct). The crosshair is now the torso boresight: BTTwistToReticleX(torsoTwist) = tan(twist) projected through the live per-axis projection. Dead-centre on the fixed-torso BLH (TorsoHorizontalEnabled=0); you aim by steering the whole mech. - BT_AIM="x y" retained as the headless test harness. Verified: face-to-face spawn -> HOT lock + aimed zone hits (36); BT_FORCE_TURN circling -> 31 no-target vs 1 HOT (steering off-target drops the lock, as it must). KB swept (combat-damage / gauges-hud / open-questions); checkctx CLEAN. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
9666dc5b5e |
Targeting: lock mirrors the pick per frame (sticky designation removed)
The sticky lock made aim irrelevant after the first acquisition (the crosshair starts on the face-to-face enemy, so it locked at spawn and never let go -- played as auto-targeting). The binary treats no-target as a frequent live state (fire path re-checks 0x388!=0 at every step, part_013.c:7689/7727; HUD range feed has a permanent no-target default, :5636), so the target slots now mirror the reticle pick each frame: locked while the crosshair is ON the mech, no lock otherwise. Keeping the crosshair on the enemy is the gunnery. Verified headless: BT_AIM="0 0" -> HOT + aimed zone hits; BT_AIM="0.6 0.4" -> no lock, zero damage. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
d78bde066d |
Authentic target acquisition LIVE: reticle slew + pick-ray lock + aimed zone damage (task #36)
The engine Reticle model (MUNGA/RETICLE.h [T0]) reconstructed end to end: - Mech::targetReticle is a real Reticle member bound to the TargetReticle attribute (0x1d), per the RP VTV analog (VTV.h targetReticle). - Crosshair slew: mouse -> client rect -> reticle coords (the pod stick free-aim channel's dev-box stand-in); BT_AIM="x y" pins it headless. LMB fires lasers / RMB missiles (alongside SPACE/CTRL). - Pick ray: the ACTIVE eye publishes pos + LookAtRH basis (BTSetAimCamera, L4VIDRND view-write site) + the render loop publishes proj._22; BTGetAimRay builds the world ray, Mech::PickRayHit slab-tests it against the collision template's ExtentBox via the engine's BoundingBox::HitBy (local frame; clips the Line at entry) -> world hull point. - Designation: the mech under the crosshair designates (sticky; re-hover refreshes; cleared when the target leaves the roster at burial); the entity target slots 0x37c/0x388/0x38c feed the whole weapon path. - Aimed fire: while HOT the impact point is the PICKED hull point -> the STEP-6 cylinder lookup resolves the zone under the crosshair (verified: center-aim -> head-band zone 13 dominant). Off-crosshair the sticky designation converges on center mass. - HUD: the aim group draws at the slewed position ([0x9a] translate, contained by push/pop); the designator ring tracks the target's projected point (subB9 hot / subB8 designated, BTProjectToReticle); edge arrows when off-screen/behind. - AUTHENTIC gating: no fire arc exists in the binary (FireWeapon fires whenever HasActiveTarget, part_013.c:7758) -> BT_FIRE_ARC is now an explicit OPT-IN presentation clamp; the hardwired gEnemyMech lock and the projectile path's gEnemyMech fallback are removed. - Fixed en route: every renderable rebuild stomped mCamera back to the chase eye (start-inside silently lost the cockpit camera; the aim feed exposed it). BTL4VideoRenderer::mViewInside persists the chosen view. Verified headless: BT_AIM="0 0" -> HOT lock, pick hits the hull face at exact range, aimed zones resolve; BT_AIM="0.8 0.3" -> no lock, zero damage, zero missile launches; kill chain completes to wreck + smoke. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
6988821525 |
KB: authentic targeting model recovered (Reticle pick-ray, RETICLE.h [T0])
The engine Reticle struct (the mech's "TargetReticle" attribute) is the acquisition chain: slewable screen-space crosshair -> pick-ray -> the entity + damage zone under it become mech+0x388/0x38c, the intersection point mech+0x37c. Convergence-on-lock is authentic (FireWeapon has no aim test); targetWithinRange = dist < (1-damage) x weaponRange (FUN_004b9bdc). Port acquisition is a bring-up stand-in (hardwired lock + BT_FIRE_ARC cone) -> tracked as the next combat-fidelity step. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
|
c0fa6bf21a |
Death = the burning WRECK-HULK swap (effect 104) -- the authentic chain, reconstructed
The user was right: a dead mech turns into a pile of wreckage. The authentic
1995 chain, recovered end-to-end:
kill -> the victim's per-mech DEATH ModelList ('blhdead'/'lokdead'/'owndead'/
'thrdead', .RES ids 22-25) -> its authored effects: 104 (the WRECK script) +
1007 (dnboom big explosion) + 1001 (ddthsmk rubble smoke plume) + a damage-
smoke burst (3/4/5/15).
Effect 104 = ExplosionScripts case 4 (part_008.c:2663, LIVE in the 1996 binary;
the "disabled" warning is case 6): loads the destroyed hulk + flamesml/flamebig
flame meshes with sweep flicker. Every mech ships its hulk (BLHDBR/MADDBR/
LOKDBR/... + GENDBR generic); the 1996 script hardcoded thrdbr.bgf (dev
shortcut) -- we use the victim's own.
Reconstructed as BTL4VideoRenderer::SwapToWreck: hide every segment mesh, hang
"<prefix>dbr.bgf" on the tree root (pending-swap if death precedes tree build);
routed from the engine's ExplosionClassID dispatch (effect 104 ->
BTSwapMechToWreck(explosion->GetEntityHit())). The kill now fires the
authentic 'blhdead' resource (manual 7+1 pfx calls removed -- the list carries
1007/1001 itself). Verified live:
[death] firing authentic death list 'blhdead' id=22
** effect_number = 104
[BTrender] wreck swap: victim -> 'blhdbr.bgf'
Follow-ups noted: mesh flames + hulk settle (cosmetic), DeathSplash.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Fable 5
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d9254736ab |
Death is a FREEZE, not a collapse -- fall-latch vestige proven; band-effect impact frames
Task #32 (death collapse animation) resolved by decomp evidence -- BT 4.11 has NO collapse animation; the movementMode 5-8 fall latch (clips 0x1c-0x1f) is an engine-lineage vestige: (1) the clip-table loader FUN_004a80d4 fills slots 0x00-0x1b + 0x20 (bmp knockdown) and returns -- slots 0x1c-0x1f are never written; (2) mech+0x63c..0x648 appear in NO exported function; (3) no fall clip exists in the shipped 27-clip set; (4) firing the latch would bind resource id 0 -- a StaticAudioStream -- as keyframes. Authentic death modes are the FREEZE modes (IsDestroyed == mode 2||9), so UpdateDeathState now settles straight to 9 (was a [T3] mode-5 guess that would trip the garbage latch in the binary). The death READ = freeze + dnboom + ddthsmk smoke plume + destroyed skins + shutdown; the wreck stands. Also: damage-band effects orient toward the ATTACKER (impact frame) via lastInflictingID -- which was declared but never written (recon gap); now maintained by Mech::TakeDamageMessageHandler, unblocking the DamageZone LOD same-attacker redirect too. KB corrected + proofs recorded (combat-damage "Death SEQUENCE", open-questions). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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a3d67cc639 |
Combat visible + killable: Wword root-cause fix, .PFX effect layer, RemakeEntity swap
The 'can't kill the enemy / no visible damage' cluster, root-caused and fixed faithfully: - STEP-6 unaimed path was INERT: the cylinder table was 'cached' at Wword(0x111) -- the recon ABSORBER bank (stores nothing, reads 0) -- so every unaimed hit silently no-op'd. Promoted to the named member Mech::damageLookupTable (binary this[0x111], was mislabeled ammoExpended). New gotcha class recorded (reconstruction-gotchas §2) + sweep; 2 dead multiplayer branches logged. - Fire path migrated off the stale vital-zone aim onto the completed STEP-6 unaimed dispatch (zone=-1 + beam entry point -> cylinder resolves the exterior zone). No more invisible 1-shot kills; death via the authentic cascade (~14 center-mass hits). Wreck stays TARGETED on kill (beams stop on it); scoring latches off. - SendSubsystemDamage AV fixed: unbound critical-subsystem plug guard (43 unbound plugs/mech logged as an open question -- the binding itself is a gap). - RemakeEntity (render damage swap): the 1996 render state machine's missing Remake state, reconstructed as an in-place SetDrawObj mesh swap keyed by each segment's damage-zone graphic state (tree dtor doesn't cascade -> never rebuild). Destroyed arms/guns visibly wreck (the only variants the RES registers). - BT .PFX particle layer (L4VIDEO.cpp): the 1995 explosion/damage effect layer, unported since 2007 (DPLIndependantEffect/ReadPSFX/ExplosionScripts all stubs). Parses the authentic VIDEO/*.PFX definitions via the [pfx_day] psfxN mapping; premultiplied blending renders BOTH families from the same data (additive-style fire + occluding smoke -- DDAM2 is 30% grey, DDTHSMK ramps negative: impossible additively); depth-sorted billboards with a radial-masked grit sprite; impact-frame orientation (.PFX offsets are authored mech-local, -Z = out of the struck armor toward the shooter) for weapon hits AND damage bands (via lastInflictingID, now maintained -- was declared but never written). Both effect-number encodings route (raw dpl <100 + WinTesla 1000+slot carried by the band resources). Death fires the authentic dnboom (7) + ddthsmk smoke plume (1). - Effects anchor at the impact point / damaged zone's segment, not the mech origin (no more fire at the feet). - Dev force-input gates BT_AUTOFIRE / BT_AUTODRIVE for headless fire-chain verification; BT_PFX_ADD=1 flips the particle blend for A/B. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Opus 4.8
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a9467481c5 |
Death-state sequence: collapse + subsystem shutdown + freeze (wreck stays)
Reconstructs the mech DEATH state machine — the un-exported master-perf death
branch (region 0x4a9770-0x4ab188) — from its EXPORTED consumers + the RP
VTV::DeathShutdown analog, wired into the active path (the bring-up drive
override bypasses the authentic Simulate where this normally lives).
Mech::UpdateDeathState() + IsMechDestroyed() (mech4.cpp), called for every mech
early in PerformAndWatch: on a vital kill (graphicAlarm >= 9, raised by the
damage side) it
1. sets movementMode = 5 -> the collapse clip's one-shot latch in
AdvanceBodyAnimation (fall direction 5-8 is un-exported -> 5 [T3]);
2. loops the roster calling Subsystem::DeathShutdown(1) (RP VTV::DeathShutdown
analog; the base is a no-op virtual, overrides act -- a SHUTDOWN not a
teardown, so it frees nothing and never removes the entity: the wreck STAYS);
3. next frame settles to movementMode = 9 -> IsDisabled -> locomotion frozen.
The drive's lone `movementMode = 1` write (mech4.cpp ~1309) is guarded on
!IsMechDestroyed so the death state is not clobbered back to a live gait.
Runtime-verified (forced kill, BT_DEATH_LOG=1):
[death] mech destroyed -> collapse + subsystem shutdown (wreck stays)
[death] mech settled -> disabled (IsDisabled=1, frozen wreck)
mech frozen in place, subsystem tick + renderer keep running, no crash, wreck
stays.
Also records the full death-sequence decomp map in combat-damage.md (the
exported consumers: AdvanceLeg/BodyAnimation collapse latch, IsDestroyed, the
MechDeathHandler effect engine; and the un-exported orchestration gap).
Deferred (honest): the visible collapse ANIMATION latch through the active path
(gait SM shows state=0 post-death; spawned mechs don't advance body anim);
MechDeathHandler (FUN_0042a984/FUN_0042aa2c -- the exported per-subsystem
destroyed-skin + explosion engine, still a stub) for death explosions; the
whole-mech DeathSplash radius damage (un-exported).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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arcattackandClaude Opus 4.8
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d07ac7dd49 |
STEP 6 COMPLETE: cylinder hit-location LIVE — unaimed hits resolve to zones
The Mech per-impact hit-location resolver (the cylinder damage table) is now functional, wired, and runtime-verified [T2]. Unaimed (zone==-1) hits — the collision-damage path — now resolve an impact point to a damage zone via the authentic height x angle grid + weighted dice roll, instead of dropping. dmgtable.cpp/.hpp was a non-functional skeleton on no-op ReconTable/stream shims; backed it with real std::vector storage and fixed 5 latent runtime bugs: - ReadEntries now consumes the leading cell name-string ([i32 len][len+1]) - PieSlice ctor reads rotateWithTorso into the correct member - SelectSlice direct-indexes (was int lookup on a float-keyed table) - ResolveHit returns the zone (chains SelectSlice -> SelectZone) - real MemoryStream::ReadBytes (was a variadic no-op) mech.cpp ctor: replaced the empty-name StandingAnimation stub with the real load — FindResourceDescription(dzRes->resourceName, type 0x1d) -> stream -> new DamageLookupTable, cached at mech[0x111]; ~Mech deletes it. Mech::TakeDamageMessageHandler override registered (MESSAGE_ENTRY overlays Entity's by ID): on invalidDamageZone, resolve via the table then base-route; aimed reticle hits pass through unchanged. Three named accessors (no databinding-trap raw reads): WorldToLocal (localToWorld.MultiplyByInverse), CylinderReferenceHeight (standingTemplateMaxY == collisionTemplate->maxY == binary mech+0x2ec[+0xc]), TorsoHeading via a BTGetTorsoTwist bridge in torso.cpp (Torso::CurrentTwist == torso+0x1d8; torso.hpp cannot be included into mech.cpp — subsystem-stub collision). Stream format + geometry + roll + handler were all byte-verified against the shipped BTL4.RES type-29 resources (18 tables, exact consumption) and the disassembly (FUN_0049eb54/e678/de14, glue 0x49ed0c, handler @0x4a037a). Runtime: boots clean, "[cyl] table 'bhk1' layers=7" (exact byte-verified layer count, found by name), mech spawns + walks, no asserts/AV/0xCDCDCDCD. Env gate BT_CYL_LOG=1. Unblocks collision-damage application. KB updated (combat-damage.md STEP 6 COMPLETE, open-questions.md marked done). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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arcattackandClaude Opus 4.8
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33fee712e9 |
context: STEP-6 content confirmed — DamageLookupTableStream (type 29), 18 present, feasible
The cylinder table resource = type 29 DamageLookupTableStream, 18 in BTL4.RES (one per mech) -> STEP 6 is FEASIBLE, not content-blocked. Name copied from a sibling resource (local_130+0xc). RE phase complete; build (containers + handler + load + wire) is the next phase. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |