feat(gamebook): full-height scrolling text + real pad mapping #41

2026-06-19T21:57:05Z

electron commented

2026-06-19 21:57:05 +00:00

Reading text fills the screen and scrolls (no more clipping); pad keys remapped to measured voltages (Up button is dead hardware, nav works without it).

electron added 1 commit 2026-06-19 21:57:06 +00:00

feat(gamebook): full-height scrolling text + real pad mapping

CI / platformio (pull_request) Failing after 4m50s

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CI / platformio (push) Failing after 10m23s

Details

a8af29068b

Context:
Two issues on the Freenove gamebook: (1) long passages were clipped —
the reading band was small and text overflowed; (2) the 5-way pad was
decoded wrong, so navigation felt random, and on this unit the physical
Up button is electrically dead (held = no voltage change).

Approach:
Give the reading text the whole screen height in a vertically
scrollable container, split selection from scrolling, and remap the
keys to the pad's MEASURED voltages.

Changes:
- display_ui: gamebook view reworked — compact title, a full-height
  scrollable reading container (the body wraps and scrolls, never
  clipped), and a one-line choice selector pinned at the bottom; new
  display_ui_gamebook_scroll() + reset-on-new-passage; show() gains a
  reset_scroll arg; body buffer 512 -> 1100.
- gamebook.c: controls matched to the measured ladder
  (key2=LEFT, key4=DOWN, key5=RIGHT, key1=CLICK; key3 unused; Up dead):
  Left/Right scroll the text up/down, Down cycles the answer, Click
  validates; library nav cycles tiles without needing Up.

Impact:
Long passages are fully readable (they scroll), and all four working
pad buttons do the right thing; nothing depends on the dead Up button.
Hardware-calibrated against the real pad voltages.

electron merged commit a8af29068b into main

2026-06-19 21:57:21 +00:00

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Reference: electron-rare/ESP32_ZACUS#41