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TeslaRel410/restoration/source410/BT
CydandClaude Fable 5 33fd921cea BT410 5.3.89: the hit-location cylinder MEASURED -- 18 tables, 8 distinct, and two chassis that never twist
The operator recalled the damage model as "a pie wedged cylinder" and asked
how it maps across the mechs.  It is exactly that, and the shipped data is now
extracted rather than described.

dmgscan.py brute-forces every offset in BTL4.RES and accepts a candidate only
if the ENTIRE nested type-29 structure parses -- thresholds strictly ascending
and terminating at exactly 1.0, zone indices in range, names NUL-terminated.
A wrong format guess cannot survive that, so finding exactly 18 tables -- the
count DAMAGE-MODEL.md already claimed from an independent reversal -- is a
confirmation of the format, not a coincidence.

MEASURED: 18 tables, every one 7 bands x 8 wedges = 56 cells.  Only EIGHT are
distinct by content; the other ten are duplicates.

  22 zones  4 twisting  x3  Avatar / Mad Cat class -- table A
  22 zones  4 twisting  x2  Avatar / Mad Cat class -- table B
  21 zones  4 twisting  x3  Loki
  22 zones  4 twisting  x2  Thor
  21 zones  4 twisting  x2  SND2
  24 zones  4 twisting  x2  Battlemaster / Vulture
  20 zones  0 twisting  x2  Black Hawk
  17 zones  0 twisting  x2  Owens

BLACK HAWK AND OWENS ROTATE NO BAND WITH THE TORSO.  Every other chassis
rotates its upper four.  That is a real behavioural difference in the shipped
data, not an absence of it.

The zone COUNTS match the per-chassis .SKL dz_ sets exactly, which is what
lets a table be fingerprinted back to a chassis.  It is not always unique --
Avatar and Mad Cat share a zone set but have two DIFFERENT tables, and no
chassis name sits near the stream, so they are recorded A/B rather than
guessed.  Stated as undetermined in both the notes and the visual.

THE GEOMETRY, now named: 18 wedge names in six anatomical rings (Foot, Leg,
Hip, Waist, Chest, Top).  Slot 0 starts at angle 0 spanning 45 degrees, so
under atan2(z,x) the mech's +X is right and +Z is front.  Each named face
covers TWO adjacent wedges (Right = 7,0 / Front = 1,2 / Left = 3,4 / Rear =
5,6) -- so dead ahead is the SEAM between two Front cells, never the centre of
one.  Bands 0-2 are chassis-fixed; the live torso twist is added to the impact
angle before the wedge pick on the rest.

And the scatter is generous in a way worth knowing at the controls: a clean
foot-wedge hit is only 50% that foot, 30% the lower leg, and 20% of the time
the OTHER foot entirely.

ALSO: an interactive plate of all of it -- every cell of all 8 tables, plan and
elevation, and a twist slider that rotates the upper bands live -- published
for the playtesters.  Its dataset regenerates from dmgscan.py.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-01 23:10:41 -05:00
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