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re: the stage numbering is consistent everywhere; the manifest still declares the cut S17

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Correction first: the previous commit claimed the corpus 'did not know
the stage NUMBERS'.  It did -- structures/mission-script-ssb.md has
recorded S01-S16, S18-S29, S17 absent by a three-way convergence (hash
lookup, the table sweep, the loader's != 16 guard) since before that
pass.  What was actually new there is the player craft per stage and
ResourceID's ordinal tags; the numbering is a fourth independent route,
not a discovery.

The question this item asked: do the ISL StageNN.ssb files and the
UnitGroup_SNN.tbl tables use the same numbering, or is something
silently mis-labelled?  They are identical.  Stage\StageNN.ssb,
stage\UnitGroup_SNN.tbl and stage\Route_SNN.tbl all resolve for the
same 28 N with an EMPTY symmetric difference; AIParams is the same minus
18-23.  Nothing in the corpus is mis-keyed.  Formation_SNN and
Message_SNN resolve 0/40 -- those are field names, not files, and the
four families above are the controls that make that negative real.

New: Stage\script.tbl's SCRIPTS record lists 29 MISSION*.ssb fields --
MISSION1..MISSION29, including MISSION17 = Stage17.ssb -- and only 28 of
29 name a file that ships.  Control: MISSIONn -> Stage<n>.ssb with the
same n, 0/29 mismatched.  So S17 is a cut mission the shipping manifest
still names, which is why the loader carries an explicit != 16 guard
rather than just running 0..27.

Artefact +14 lines / 0 deletions; the other four regenerate
byte-identical.
This commit is contained in:
Sylpheed RE agent
2026-08-27 13:27:19 +00:00
parent 28a59d839f
commit ccdc226022
4 changed files with 111 additions and 3 deletions
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26
docs/re/BACKLOG.md
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@@ -827,6 +827,32 @@ unknown, what evidence exists, and what the first step would be. Move an item in
field; the stat keys in records not opened here (`MegaTons`, `BulletLimit`,
`CrewCount`, `HP_CLASS`); why the roster lists 59 of 131.
* ✅ **(2026-08-27) THE STAGE NUMBERING IS CONSISTENT EVERYWHERE — and the
manifest still declares the cut S17.** Also a **correction to my own claim**
in the entry below.
[structures/stage-numbering-and-player-craft](structures/stage-numbering-and-player-craft.md),
artefact `data/stage-numbering.txt` (+14 lines, 0 deletions — purely additive).
❌ **Correction first**: the entry below says the corpus "did not know the
stage NUMBERS". It did — `structures/mission-script-ssb.md` has recorded
**S01-S16, S18-S29, S17 absent** by a three-way convergence (hash lookup, the
table sweep, the loader's `!= 16` guard) since before that pass. What was
actually new there is the **player craft per stage** and `ResourceID`'s
ordinal tags. The numbering is a fourth independent route, not a discovery.
✅ **The question this item asked** — do the ISL `StageNN.ssb` files and the
`UnitGroup_SNN.tbl` tables use the same numbering, or is something silently
mis-labelled? **They are identical**: `Stage\StageNN.ssb`,
`stage\UnitGroup_SNN.tbl` and `stage\Route_SNN.tbl` all resolve for the same
28 N, **symmetric difference EMPTY**; `AIParams` is the same minus 18-23.
Nothing in the corpus is mis-keyed. (`Formation_SNN`/`Message_SNN` resolve
0/40 — field names, not files; the four families above are the controls that
make that negative real.)
🔑 **New**: `Stage\script.tbl`'s `SCRIPTS` record lists **29** `MISSION*.ssb`
fields — `MISSION1`..`MISSION29`, **including `MISSION17 = Stage17.ssb`** —
and only **28 of 29** name a file that ships. Control: `MISSIONn` ->
`Stage<n>.ssb` with the same `n`, **0/29 mismatched**. So S17 is a **cut
mission the shipping manifest still names**, which is why the loader carries
an explicit `!= 16` guard rather than just running 0..27.
* ✅✅ **(2026-08-27) THE DISC'S STAGE NUMBERS ARE NOT 1..28 — S01-S16, S17
ABSENT, S18-S23 the tutorials, S24-S29 — and the player's craft per stage
falls out with it.**

14
docs/re/data/stage-numbering.txt
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@@ -8,6 +8,20 @@
stage\AIParams_SNN.tbl N = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 24, 25, 26, 27, 28, 29] (count 22)
stages with NO AIParams (the tutorials): [18, 19, 20, 21, 22, 23]
## CONTROL every per-stage file family uses the SAME numbering
Stage\StageNN.ssb 28 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29]
stage\UnitGroup_SNN.tbl 28 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29]
stage\Route_SNN.tbl 28 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29]
stage\AIParams_SNN.tbl 22 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 24, 25, 26, 27, 28, 29]
stage\Formation_SNN.tbl 0 []
stage\Message_SNN.tbl 0 []
ssb == UnitGroup == Route : True symmetric differences [] []
## the manifest DECLARES a stage the disc does not ship
Stage\script.tbl SCRIPTS: 29 MISSION*.ssb fields, numbers [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29]
CONTROL MISSIONn -> Stage<n>.ssb with the same n: 0/29 mismatched
entries whose .ssb actually ships: 28/29 ; missing: ['MISSION17']
## ResourceID -- the player craft, keyed by stage
tag 24 name <none> rou_f002
tag 25 name <none> rou_f002

43
docs/re/structures/stage-numbering-and-player-craft.md
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@@ -1,8 +1,16 @@
# ✅✅ The disc's stage NUMBERING, and which craft the player flies in each
The corpus has known "the disc has 28 stages" and "the six tutorials have no
`AIParams`" for a while. **It did not know the stage NUMBERS.** They are not
1…28:
> ## ❌ CORRECTION (2026-08-27, same day) — the NUMBERING was already known
>
> This page first claimed the corpus "did not know the stage NUMBERS". Wrong:
> [mission-script-ssb](mission-script-ssb.md) has recorded **S01–S16, S18–S29,
> S17 absent** by a three-way convergence (hash lookup, the table sweep, and the
> loader's `!= 16` guard) since before this pass. What is new here is the
> **player craft per stage** and `ResourceID`'s ordinal tags; the numbering
> below is a re-derivation, not a discovery. Kept because it is the fourth
> independent route and because the craft mapping is keyed on it.
The disc's stage numbers are not 1…28:
```
S01 … S16 story (16)
@@ -63,6 +71,35 @@ Every number closes against `ResourceID`, from a different file:
🔑 So **the player flies the DeltaSaber A in exactly one mission — S28** — and
the DeltaSaber T only for the first six.
## ✅ Every per-stage file family uses the SAME numbering
Checked because a mismatch would have silently mis-labelled stages across the
corpus. It does not exist:
| family | count | N |
|---|---:|---|
| `Stage\StageNN.ssb` | 28 | 1–16, 18–29 |
| `stage\UnitGroup_SNN.tbl` | 28 | identical |
| `stage\Route_SNN.tbl` | 28 | identical |
| `stage\AIParams_SNN.tbl` | 22 | the same minus 18–23 |
**`ssb == UnitGroup == Route`, symmetric difference empty.** (`Formation_SNN` and
`Message_SNN` resolve 0/40 — those are field names, not files; the four families
above are the positive controls that make that a real negative.)
## 🔑 The manifest declares a stage the disc does not ship
`Stage\script.tbl`'s `SCRIPTS` record lists **29** `MISSION*.ssb` fields —
`MISSION1` … `MISSION29`, **including `MISSION17 = Stage17.ssb`**. Only **28 of
the 29** name a file that is actually in the pak; the one missing is
`MISSION17`. Control: `MISSIONn` → `Stage<n>.ssb` with the same `n`, **0/29
mismatched**.
So S17 is not a numbering quirk — it is a **cut mission that the shipping
manifest still names**, which is why the loader carries an explicit `!= 16`
guard ([isl-condition-builtins](isl-condition-builtins.md)) rather than simply
running 0…27.
## 🟡 Not settled
* The Arsenal entry FILENAMES are still unrecovered, so *which* of the 168

31
tools/re-capture/stage_numbering.py
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@@ -31,6 +31,37 @@ def main():
print(" stage\\AIParams_SNN.tbl N = %s (count %d)" % (ai, len(ai)))
print(" stages with NO AIParams (the tutorials): %s" % [i for i in ug if i not in ai])
print("\n## CONTROL every per-stage file family uses the SAME numbering")
fam = [('Stage\\StageNN.ssb', 'Stage\\Stage%02d.ssb'),
('stage\\UnitGroup_SNN.tbl', 'stage\\UnitGroup_S%02d.tbl'),
('stage\\Route_SNN.tbl', 'stage\\Route_S%02d.tbl'),
('stage\\AIParams_SNN.tbl', 'stage\\AIParams_S%02d.tbl'),
('stage\\Formation_SNN.tbl', 'stage\\Formation_S%02d.tbl'),
('stage\\Message_SNN.tbl', 'stage\\Message_S%02d.tbl')]
sets = {}
for label, tpl in fam:
sets[label] = {i for i in range(0, 40) if U.name_hash(tpl % i) in H}
print(" %-26s %2d %s" % (label, len(sets[label]), sorted(sets[label])))
a, b = sets['Stage\\StageNN.ssb'], sets['stage\\UnitGroup_SNN.tbl']
c = sets['stage\\Route_SNN.tbl']
print(" ssb == UnitGroup == Route : %s symmetric differences %s %s"
% (a == b == c, sorted(a ^ b), sorted(a ^ c)))
import re as _re
sh = U.name_hash('Stage\\script.tbl')
sc = [r for r in U.parse(dict(pak_entries(mg))[sh]) if r['squadron'] == 'SCRIPTS'][0]
n = U.named(sc)
miss = {k: v for k, v in n.items() if k.startswith('MISSION') and v.endswith('.ssb')}
nums = sorted(int(_re.match(r'MISSION(\d+)', k).group(1)) for k in miss)
bad = [(k, v) for k, v in sorted(miss.items())
if v != 'Stage%02d.ssb' % int(_re.match(r'MISSION(\d+)', k).group(1))]
ship = [k for k, v in miss.items() if U.name_hash('Stage\\' + v) in H]
print("\n## the manifest DECLARES a stage the disc does not ship")
print(" Stage\\script.tbl SCRIPTS: %d MISSION*.ssb fields, numbers %s" % (len(miss), nums))
print(" CONTROL MISSIONn -> Stage<n>.ssb with the same n: %d/%d mismatched" % (len(bad), len(miss)))
print(" entries whose .ssb actually ships: %d/%d ; missing: %s"
% (len(ship), len(miss), sorted(set(miss) - set(ship))))
recs = U.parse(E[U.name_hash('eng\\GP_HANGAR_ARSENAL_3D.tbl')])
rid = [r for r in recs if r['squadron'] == 'ResourceID'][0]
print("\n## ResourceID -- the player craft, keyed by stage")