fabi/Syplheed-Reborn
Archived
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

re: the eight-value frame censused disc-wide, and my novelty claim withdrawn

Browse Source 
Grepping FrameCount first would have saved the previous iteration an overclaim.

Withdrawn: the 8-value layout was not a discovery. stage-mission-tables already
documents Route_* records as (time, quat.x,y,z,w, pos.x,y,z) with
len(fields) == 8*FrameCount + 1 holding 1449 of 1449, and unit-group-table
already documents 1 + 8*FrameCount for formation slot lists. I re-derived the
shape from the asteroid tables and called slot 0 an "index" - it is the
corpus's time slot. Corrected in asteroid-fields.md. What the asteroid pass did
add is the norm test.

The census the corpus was missing: both prior statements were measured on one
table family each. Sweeping every IDXD record on the disc carrying a
FrameCount - 10986 records, 10974 with anon == 8 * FrameCount, and the entire
residual is 12 records: Formation_Fleet_01 (ratio 136) and Formation_Fleet_02
(ratio 4), six each, one per language pack. The two exceptions the doc already
names are the only two on the disc.

The quaternion is now measured, not asserted: over 78762 frames in five
families, |q| is within 1e-4 of 1.0 on 78762 / 78762.

Slot 0 is time only where something moves. It equals the running ordinal
0..N-1 in every formation (2196/2196), asteroid (384/384), placement (36/36)
and test-route (24/24) record, and in only 6228 of 8334 real routes - the one
family that stores true timestamps there.

Two record families new to the corpus: Placement_00..02 and RouteTest_00..01,
sharing a six-record template object whose sixth record is named Enumeration,
two such objects per language pack.

All fifteen artefacts byte-identical.
This commit is contained in:
Sylpheed RE agent
2026-08-28 02:20:15 +00:00
parent 1f0f90e304
commit eac6759f25
3 changed files with 102 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
docs/re/structures/asteroid-fields.md
View File

@@ -116,7 +116,16 @@ unreferenced.
Measured over every `Frame_*Asteroid*` record on the disc — **384 records,
37 518 items** (6 253 per language pack × 6; the other 380 per pack belong to the
seven record-less `Alpha` frames). One raw item, for shape:
seven record-less `Alpha` frames).
🔴 **The layout itself is not new** — [[stage-mission-tables]] already documents
`(time, quat.x, quat.y, quat.z, quat.w, pos.x, pos.y, pos.z)` for `Route_*`, and
[[unit-group-table]] already documents `1 + 8·FrameCount` for formations. I wrote
this up as if the shape were a discovery and called slot 0 an "index" without
checking; the correction and the disc-wide census are in
[[stage-mission-tables]]. What the asteroid measurement does add is the **norm
test** and the fact that this family sets `time` to the ordinal. One raw item,
for shape:
```
0 0.268744 0.505919 0.579670 0.579487 15667.14 -7199.61 -58794.88
@@ -126,7 +135,7 @@ seven record-less `Alpha` frames). One raw item, for shape:
| slot | test | result |
|---|---|---|
| 0 | equals the running index `0…N−1` | **37 518 / 37 518**, max **587** — and the largest `EnumAsteroid`/`FrameCount` is **588**, so the last index is `N−1` |
| 0 | equals the running index `0…N−1` | **37 518 / 37 518**, max **587** — and the largest `EnumAsteroid`/`FrameCount` is **588**, so the last index is `N−1`. ⚠️ This slot is the **`time`** of the shared keyframe layout ([[stage-mission-tables]]); the asteroid tables, having nothing that moves, set it to the ordinal — see the disc-wide census there |
| 1–4 | is it a **unit quaternion**? `\|q\|` | **37 518 / 37 518 within 1e-4 of 1.0** (min 0.999999, max 1.000001) |
| 4 | sign of the real part | min **+0.001**, never negative — the canonical **w-last** form, so the order is `(x, y, z, w)` |
| 5–7 | position, metres | ranges **−163 858…+79 572**, **−114 308…+76 422**, **−105 224…+110 263** — inside the ±250 km half-extent of `mapmesh_box_500km` |