struck drawn segment's dzone, ALWAYS -- the cylinder embellishment removed
The open question ('what zone did 1995 designate for hull hits') was
already answered in the KB's #73 dig [T0+T1]: no software pick writer
exists -- the pod's pick was a dpl scene intersection, struck triangle
-> DCS segment -> its SKL-authored dzone; the cylinder lottery was only
ever the UNAIMED path (missiles/splash/rams). The live segpick dump
completes it with the authored data: the madcat's pickable skeleton is
18 segments -- hip, shoulders, guns, thighs, knees, ankles+toes, and
ONE hull piece (jointshakey -> dtorso). No ltorso/rtorso/utorso/rear/
door/searchlight segments exist. Aimed fire at any torso panel
authentically designates CENTER TORSO; the side/rear/upper panels strip
via the unaimed path.
Changes:
* the shared-carrier -> cylinder override (yesterday's embellishment)
is REMOVED: triangle hit -> that segment's dzone, period;
* SegAimPoint: the walker's hull anchor moves from the joint ORIGIN
(crotch gap -- rays sailed between the legs to the terrain sentinel)
to the carrier segment's cull center (the chest);
* [picktri]/[pickwin] diagnostics grew tri/seg/zone fields -- three
consecutive 'mystery' regressions in this stretch were the STALE-EXE
trap (CWD-relative cmake --build from content/ resolved to a
nonexistent dir and the old binary kept running) -- the harness doc's
warning, hit again.
Final zone-walk matrix (spinning target, real MP, full cycles):
limbs 55/70 in-zone (legs/feet 6/6; arm strays = hull/occlusion);
hull-family aims -> dtorso 56/69; victim consumption matches. The
night-10 field table now reads as this model's fingerprint: 'only LCT
gets hits' from aimed energy IS the pod -- one hull piece, dtorso.
What was actually broken and is now fixed: the sphere mis-picks
(rgun-from-a-dtorso-aim class), the unaimed path's 180-degree frame,
and the vertical scatter.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
approximation retired; shared-hull hits route through the cylinder
The zone-walk matrix caught the pick red-handed: with the servo
verifiably holding the reticle on the dtorso segment, the per-segment
BOUNDING-SPHERE pick returned rgun/ruleg -- the gun pods and legs
thread the ray before the torso from most angles (its own comments
admitted a foot could be unhittable behind its own knee). The 1995
pick was a dpl scene intersection against the drawn geometry.
Restored that semantic:
* BTGetPickMesh caches each segment d3d_OBJECT's triangles CPU-side
once (its own BGF VB/IB, managed-pool locks); MechSegmentPick now
runs sphere PRE-FILTER -> Moller-Trumbore nearest-hit across the
threaded segments' posed meshes; the old smallest-sphere selection
survives only as the no-triangle fallback.
* Segments claimed as CARRIER by 2+ zones (the shared hull: madcat
seg 4 carries dtorso+ltorso+rtorso+utorso+rears) cannot resolve one
zone from geometry -- those hits return zone -1 WITH the accurate
triangle point, and the victim's bit-verified (frame-fixed) cylinder
assigns the panel by band/wedge. Unique carriers (legs, feet, arms,
gun pods) keep the direct zone.
* ZoneAimPoint: the walker aims at a zone's VISUAL center (largest
pick object's cull-center) instead of the segment origin -- joint
origins made feet/lower legs strike the part above.
* Walker upgrades from live operation: 3-column truth (aim/pick/land),
engage gate, damped servo with polarity watchdog, approach port.
Zone-walk verdict (full cycles, spinning target, real MP): limbs 5-6/6
direct in-zone; every hull panel routes CYL; the victim's landed zones
now include ltorso/rtorso/reardtorso/rearutorso/rearrtorso -- the
panels night-10 reported unhittable. Residuals tracked on #124:
rtorso/utorso aim-anchor placement, doors/searchlight small-zone
sample, twisted-torso twist-sign verify.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The precision rig the operator specified: two nodes, target visible,
every zone aimed at deliberately through the REAL reticle/pick path.
* BT_SPIN_SELF=<deg/s> (target node): rotates the node's own viewpoint
mech in place (the BT_SPAWN_AT write pattern per frame) so every
aspect passes the shooter's boresight; the operator watches this
node's paper doll take the hits.
* BT_ZONE_WALK=<secs/zone> (shooter node): walks the target's damage
zones in order, resolves each zone's carrier segment's live world
position (BTResolveSegmentWorld + the new BTMechZoneSegAndName
bridge), SERVOS the torso twist + aim elevation until the centered
reticle ray (BTGetAimRay) points at the segment, fires 3 laser
pulses, advances. [walk] ZONE/FIRE/HOLD on A pairs with [dmghit]
zone/level lines on B.
* scratchpad/night10/zonewalk.sh: launch both + relay, map sed'd to
grass/day, NO kill timer -- the session stays up for observation.
Hard-won servo constraints (documented in test-harness.md so they are
never relearned): the ENGAGE GATE (ray live + range<150 + bearing<1.1;
outside it RELAX the twist -- servoing at the twist limit while the
goto marches is a limit-clamp fight that visibly shakes the mech, and
a 0.55 gate deadlocks against the goto's ~0.55 resting bearing); YAW
POLARITY -1 (the twist cell's angular sense is opposite atan2(x,-z)
world yaw -- operator-observed live, the SECOND witness for the #124
SelectSlice twist-sign flip) with a divergence watchdog that
self-flips; damped correction (gain .40, cap .025/frame -- the aim ray
lags the twist write a frame); and a one-shot approach PORT to 100u
off the target instead of a cross-map march.
First live run: walker cycles zones, settles, fires; the target's
luleg climbed 0.458->0.523 under its own aimed pulses -- aimed shot,
correct panel, damage consumed.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
