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method: a refusing instrument, and a boot that outlasts its capture script

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Two traps this run paid for.

ring_row.py's ROW0/SPACING are x11grab constants. On a /sylph-home/re/shots/shot-0001.png grab of the
same live main menu the rows read 180.5/419.5/502.0 -- ROW0 is 45 px out, 0.57
of a step. The module refused rather than naming the wrong item, which is the
good failure, and is_main_menu() therefore returned False ON A REAL MAIN MENU. A
run gated on it would conclude 'not the menu' while sitting on the menu. Not
recalibrated: three rows from one session are not a calibration and other tools
share the constants; the module now says so where the numbers are.

menu_draw_capture.sh's 420 s title deadline fired, and the emulator left running
was at the settled title minutes later, took one A, and reached the menu first
try. A timeout is a measurement of the timeout. Leaving the emulator up after a
failed script rescued this run for one minute against a twenty-minute reboot.

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
2026-08-31 06:08:41 +00:00
parent 0af81d7549
commit 2353983df8
2 changed files with 59 additions and 0 deletions
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17
tools/re-capture/ring_row.py
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@@ -41,6 +41,23 @@ DECOR_ROWS = 50 # window title bar + menu bar live above this
FOOTER_Y = 620 # the button-legend strip is bright in the gutter too
NAMES = ["NEW GAME", "LOAD GAME", "TUTORIAL", "OPTIONS", "EXTRAS"]
ROW0, SPACING = 225.5, 79.25 # measured, main menu, x11grab
# 🔴 THESE ARE x11grab CONSTANTS AND THEY DO NOT FIT A `screenshot` GRAB
# (2026-08-31). Three rows read off `screenshot` frames of a live main menu,
# ground-truthed by eye against the rendered PNG:
#
# NEW GAME 180.5 OPTIONS 419.5 EXTRAS 502.0 (1279x675)
# -> ROW0 ~180.5, SPACING ~80.4, i.e. ROW0 is 45 px = 0.57 of a step out
#
# `main_menu_item()` therefore REFUSES on such a frame rather than returning a
# wrong item, and `is_main_menu()` returns False ON A REAL MAIN MENU. That is the
# safe failure and it is still a failure: a script that gates on
# `is_main_menu()` will conclude "not the menu" while sitting on the menu.
#
# Not recalibrated here on purpose: three rows from one session are not a
# calibration, other tools share these constants, and the x11grab numbers are
# correct for x11grab. Whoever needs the `screenshot` path should measure it
# properly and give the module TWO calibrations selected by frame size, rather
# than moving one set of numbers and silently breaking the other.
MENU_GLYPH_LO, MENU_GLYPH_HI = 250, 420 # the glyph-327 menu detector