A companion app that mostly automates the game 'Iron Nest' for you.
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Dominik Roth 0a54178723 CoordDialog: auto-scroll the next picker group into view during keyboard entry
The quick keyboard-entry sequence (type a letter then three digits to
fill X/Y/x/y in one go) is the whole point of the Exact tab, but the
picker buttons are deliberately non-focusable (keyboard focus stays on
the dialog itself, see _make_picker's comment), so nothing was
auto-scrolling the group you're about to type into view the way a
real focused field would, on a dialog taller than its visible area
you'd end up typing digits blind past the fold. _scroll_to_stage() now
scrolls the upcoming picker group (or the Identity group, once all
four digits are in) to the top of the scroll area after each
character, and hands real keyboard focus to the id field once there's
nothing left for the digit sequence to fill.

Hit and fixed a real crash while wiring this up: translate_coordinates()
actually returns a plain (x, y) tuple on success in this PyGObject
version (not the documented (bool, x, y)) and a falsy value on
failure, unconditionally unpacking three values crashed immediately on
the very first keystroke. Verified directly against a live widget
before trusting the fix, not just against the docstring.

Verified with a GTK smoke test driving the real key-press handler
through a full X/Y/x/y sequence, confirming the scroll position
advances monotonically at each stage.
2026-08-09 20:36:15 +02:00
assets/icons Shell icon picker: fix real sizing bugs, crop icon padding, inline grid for Add Strike 2026-08-09 19:28:41 +02:00
docs docs: map-vision pipeline status + BFS grid-growing plan 2026-08-09 14:49:40 +02:00
src/fenigma CoordDialog: auto-scroll the next picker group into view during keyboard entry 2026-08-09 20:36:15 +02:00
tests Drop TargetType.HOSTILE_*, track allies as their own Ally collection 2026-08-09 20:23:42 +02:00
.gitignore Add game-extracted UI icons: target markers, RP letters, shell set, nest, scout plane 2026-08-09 18:54:27 +02:00
icon_alt.png Rewrite README short, rename project to FeNigma, add icon/showcase 2026-08-08 20:15:14 +02:00
icon.png Rewrite README short, rename project to FeNigma, add icon/showcase 2026-08-08 20:15:14 +02:00
install.sh Add install.sh, run.sh uses the venv when present 2026-08-08 20:18:15 +02:00
pytest.ini Add a real pytest suite: 21 tests covering every OCR format + solver geometry 2026-08-09 18:20:27 +02:00
README.md Add a real pytest suite: 21 tests covering every OCR format + solver geometry 2026-08-09 18:20:27 +02:00
requirements-dev.txt Add a real pytest suite: 21 tests covering every OCR format + solver geometry 2026-08-09 18:20:27 +02:00
requirements.txt Sweep em-dashes out of code, docstrings, and requirements.txt 2026-08-08 20:27:53 +02:00
run.sh Rename package/app to FeNigma consistently 2026-08-08 20:20:43 +02:00
showcase.png Rewrite README short, rename project to FeNigma, add icon/showcase 2026-08-08 20:15:14 +02:00


FeNigma

Fe (iron) + enigma, we solve the geometric puzzles.

A companion app that mostly automates IRON NEST: Heavy Turret Simulator for you. Select the game's typewriter orders (selecting text in-game copies it to your clipboard automatically) and it solves the geo puzzle and the trajectory math, handing you ready-to-fire commands: elevation, azimuth, number of powder charges. Screenshotting works the same way when a selection isn't practical. Select or screenshot the field log the same way and it picks up kills and newly-spotted units automatically. You can also plan strikes and scout flights of your own. Pure screen-reading, no game files touched, no input injected.

Showcase

What it does

  • Reads orders, solves the geometry. Copy (or screenshot) the in-game typewriter text and it parses absolute grid refs and relative bearing/distance descriptions, then resolves everything into map coordinates, chained clues ("Bearing 293 from Alpha") included. The map shows its work: the actual bearing lines/circles behind each resolved position. When a description is genuinely ambiguous (two intersections), both candidates are shown instead of guessing.
  • Calculates the shot. Every resolved target gets a live firing card: elevation, azimuth, and minimum powder charge, computed from the Nest.
  • Tracks the battle. A second copy/screenshot of the field log marks units destroyed and folds in newly-spotted contacts, merging with what's already known instead of duplicating it.
  • Plans strikes. Drop a strike anywhere on the map and pick a shell to preview its blast radius before committing.
  • Plans scout flights. Click the map to plot a scout flight's sweep path: it anchors to the large grid square you're pointing at and reads the heading off exactly where in that square you click, previewed live before you commit.
  • Watches the clipboard for you. Toggle auto-watch and every new screenshot or copied intel text gets read and merged automatically, no manual fetch between orders.

Install

./install.sh

Sets up a venv for the Python deps (Pillow, numpy, pytesseract) and checks for the system packages that pip can't install: GTK4/libadwaita bindings and tesseract. If either is missing it prints the package names for your distro and stops, install those and re-run.

Run

./run.sh

Uses the venv from install.sh if one exists, otherwise falls back to system python3. GTK apps with this app ID are single-instance, if a run gets killed uncleanly it can leave a zombie registered on D-Bus and silently no-op the next launch. If ./run.sh seems to do nothing, pgrep -af fenigma and kill any stragglers first.

Tests

pip install -r requirements-dev.txt
pytest

Regression coverage for every intel-text format the OCR pipeline understands and the solver's geometry, in tests/. Run this before trusting a change to ocr.py/solver.py, several of the formats have collided with each other in non-obvious ways before.

Stack

GTK4 + libadwaita (PyGObject) for the UI, Tesseract (via pytesseract) for OCR, Pillow/numpy for preprocessing. Details on the coordinate system, OCR formats, and solver internals live in code comments (solver.py, ocr.py, models.py) rather than here.