Commit Graph

4 Commits

Author SHA1 Message Date
841156a95d re: the develop blob's index space is SOLVED -- it follows strings.tbl, cut items and all
Three hand-written probe saves settled what a mission payout could not.

  all 54 owned  -> every tab fills and the lists WRAP, giving exact counts
                   (GUN 8, BEAM 8, LASER 4, MPM 5, ASM 5, B/R 7, CANNON 6,
                   SPECIAL 6 = 43 displayed) and confirming the display order is
                   weapon.tbl's order item-for-item. It also killed the idea
                   that gate-unmet owned flags are suppressed: Maelstrom Bomb
                   (Stage 6) and Grav Cannon XGS (Stage 12) both rendered at a
                   Stage-2 save.
  only 9 + 39   -> STILETTO BG1 Developed (control) AND TOMAHAWK ALPHA RAIL GUN
                   Developed. The CANNON block starts at 39, not 38.
  only 39 + 48  -> JAMMING SYSTEM Developed. SPECIAL starts at 48, and with six
                   SPECIAL items the array closes exactly at 53, nothing spare.

So the blob is indexed by strings.tbl's item order -- the display order PLUS the
items only the localisation file carries (Adhesive Mine B2A, and three of
Ballista GSH / Designator LH / Smoke Marker Launcher / Bumble UV). They never
appear in the Arsenal but they hold slots, which is the entire reason the tail
looked broken. It also explains the retail save's five "unexplained" owned
entries at 33 and 45/46/47: cut items, shipped flagged owned, never rendered.

That weapon.tbl's No_Equipment..Wep_83 run is ALSO 54 long is a coincidence, and
it cost real time -- the two orders agree only to index 32. Recorded as such.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-11 19:01:14 +00:00
dc97dc215d docs: reconcile the 'free items are granted' wording with the 0 P purchase the probe caught
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-11 18:10:58 +00:00
f5f95be0a1 re: saves can be written back, which settles what the develop blob's 4s mean and refutes the tail
The container's derived fields turned out to be reproducible -- length+10 at
+0x30, payload length at +0x8c, adler32(payload) at +0x8e, everything else
copied -- and savegame_edit.py re-wraps a real save BYTE-IDENTICALLY, which is
the check that those three are the only ones. A hand-written save then loaded.

That replaced a blocked experiment (the tail question needed a mission payout,
and none of the currently developable items even sit in the disputed range) with
a direct one: write the blob, read the Arsenal.

  - controls: 4 at index 9 -> STILETTO BG1 Developed, 21 -> FALCON 9AM
    Developed. A hand-written 4 reaches the screen.
  - tail: 4 at 33 and 45 left their rows dashed (both on screen, not below the
    fold), and 38 left TOMAHAWK ALPHA RAIL GUN at "0 P" -- not owned. So the
    tail is not the weapon.tbl order continued.
  - clearing the real save's {22,26,39,46,47} cost the Tomahawk its Developed
    status, which puts its flag in that set (39 positionally) -- but a uniform
    +1 fails for SPECIAL, so no shift is asserted. Indices >=32 stay marked.

Two behaviours fell out. The title RE-DERIVES developable state on load and
announces it ("You can now develop Broad Sword ..."), so only the 4s are stored
state and a written 2 is pointless. And a no-cost item is bought for 0 P rather
than granted -- TOMAHAWK at "0 P" is what unowned looks like -- which is the
actual reason items read Developed in a save where nothing was spent.

Slot 03 was restored from its archived original (md5 verified); slots 01/02 were
never touched.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-11 18:10:28 +00:00
f88f4f6847 re: the Arsenal develop economy, and the save blob's index space (first 32 confirmed)
GP_HANGAR_ARSENAL.pak's screen config points at weapon.tbl (item ids, in the
8-category display order) and strings.tbl (names, descriptions, and a
"Conditions to obtain" block per item). The id run No_Equipment .. Wep_83 is
exactly 54 long -- the save blob's length -- and all 60 conditions blocks are
extracted to a CSV: gates are stage completion, a predecessor item, or an ace
kill; costs run 3000-350000 P, and 20 items cost nothing once gated (which is
why items the player never bought read as Developed).

Predicting the save state from those conditions -- before looking at the blob --
says exactly six items are developable here, and the blob's six 2s sit on those
six, in weapon.tbl order, at indices 1/5/10/12/27/31. With the four obtained
items and the differential's own two transitions that is twelve concordances
over indices 0-31, nothing fitted. Broad Sword SG1 at index 5 needed scrolling
the GUN list to see, which is the only one the first screenshots missed.

The tail is NOT settled and is marked so: the Tomahawk is weapon.tbl index 38
and the screen shows it Developed, but blob[38] = 0, and the other tail 4s
(33/39/45/46/47) land on items the Arsenal shows as locked -- the SPECIAL tab is
entirely empty. A +1 shift does not repair it either. Settling it needs a second
development in a late category, which needs a mission payout.

Also recorded: IDXD string pools dedupe repeated values, so only the first
record of a table can be read from the token stream -- record 2 shows just its
unique values, record 6 no cost at all.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-11 17:38:45 +00:00