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re: a third menu-outgoing gap, and leaving the archive costs no extra black

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sylpheed-port's BLOCKED row asks for a second value on one outgoing screen --
what would make "the gap tracks the outgoing screen" predictive rather than a
restatement of the data.

First, a correction their ask surfaced without needing a run: THE MENU ALREADY
HAD TWO VALUES AND THEY DIFFER -- 0 leaving for the title, 1 leaving for EXTRAS.
So "the outgoing screen determines the gap" was too strong and is withdrawn; what
holds is an ordering, not a determination. Also recorded: their ask is answerable
only from the menu, since the title's sole exit is (A) to the menu and EXTRAS's
sole exit is (B) to the menu.

Then took a third menu-outgoing measurement, to a screen outside GP_TITLE.
Confound named in advance rather than after: that transition leaves the ARCHIVE,
so a pak load could inflate the gap for reasons unrelated to the outgoing screen.

Result: outgoing quad rises across frames 24-28 (4-5 frames, matching build 5's
declared 10-unit close), then ONE empty frame at 30. Gap = 1, identical to
menu -> EXTRAS. So the confound is measured ABSENT -- leaving the archive costs no
extra black, which is worth having on its own.

Six transitions now group as: menu {0, 1, 1} over three different destinations
including another pak, EXTRAS {2}, title {3, 3, 3}. The ordering rests on 3+1+3
measurements and the menu's three agree to within one frame.

Still not predictive: outgoing closes are 5, 5, 4 frames against gaps {0,1}, {2},
{3}, and EXTRAS has n=1 with no way to obtain a second value.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
This commit is contained in:
sylph-decoder
2026-08-30 18:42:51 +00:00
parent 36c01ae253
commit e823cfe6fa
3 changed files with 74 additions and 3 deletions
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25
tools/re-capture/fade_decompose.sh
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@@ -76,6 +76,31 @@ if [ "$WHERE" = "menu" ]; then
done
[ "$s" = "menu" ] || { echo "NO MENU (screen=$s)"; exit 2; }
BTN=B
elif [ "$WHERE" = "menu2other" ]; then
# A THIRD value for the menu as outgoing screen. The menu is the only screen in
# GP_TITLE with more than one exit, so it is the only place the port's ask -- a
# second value on one outgoing screen -- can be tested at all. Here we take an
# exit that LEAVES the archive (NEW GAME / LOAD / TUTORIAL / OPTIONS), which the
# discriminator reports as "neither" with a collapsed margin.
BRANCH="menu2other: arm on the MENU with focus on a non-EXTRAS item -> press (A)"
python3 "$SD/pad.py" tap A 0.5
for _ in 1 2 3 4 5 6; do
sleep 4; s="$(screen)"; echo " after A: $s"
[ "$s" = "menu" ] && break
done
[ "$s" = "menu" ] || { echo "NO MENU (screen=$s)"; exit 2; }
# Confirm the focused item is NOT extras: press (A), check, (B) back. If it WAS
# extras, step the cursor once so the armed press goes somewhere else.
python3 "$SD/pad.py" tap A 0.5; sleep 5
shot "$OUT/probe.png"
w="$(python3 "$SD/which_title_screen.py" "$OUT/probe.png")"
echo " probe: $w"
python3 "$SD/pad.py" tap B 0.5; sleep 6
case "$w" in extras*) echo " focus was EXTRAS — stepping once"
python3 "$SD/pad.py" dpad UP 0.3; sleep 2;; esac
shot "$OUT/armed-on-menu.png"
echo " arming on: $(python3 "$SD/which_title_screen.py" "$OUT/armed-on-menu.png")"
BTN=A
elif [ "$WHERE" = "extras" ] || [ "$WHERE" = "menu2extras" ]; then
BRANCH="extras-family: navigate to EXTRAS"
python3 "$SD/pad.py" tap A 0.5