The gap
Hand-drawing dozens of symmetric patterns is slow, and a symmetry puzzle must show exactly enough to deduce the rest.
Game templates
The complete source of Rhombwick, a cross-stitch symmetry puzzle with generated shevitsa patterns under three symmetry groups and a daily pattern.
Coming soon
Not published on its store yet, so there is no buy or download link. PN Scripts does not take payment for it here.
The gap
Hand-drawing dozens of symmetric patterns is slow, and a symmetry puzzle must show exactly enough to deduce the rest.
What it is
This template generates motifs in the fundamental region and shows one stitch of every mirror orbit.
How you use it
Unzip, serve the folder and open index.html, then edit game.js; npm test plays it again in headless Chrome.
Source code of a real, playable game to reskin and learn from, with a smoke test whose bot plays it.
Use it when
Built for
Every cell maps to a canonical cell: the absolute offsets for both axes, sorted as well for the diagonals. Motif layers are tested on that cell, so the pattern is symmetric by construction.
For each orbit of mirror twins that carries a colour, one member is chosen at random to be given; empty orbits stay empty, so the whole pattern follows from the shown stitches.
Plain JavaScript and Canvas 2D; open index.html through any static server and edit game.js.
A headless Chrome test loads the game, checks the console, presses keys and taps, and lets the built-in bot play a run to its result screen.
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| Platform or runtime | Supported versions | Tested up to |
|---|---|---|
| Node.js | 22.12 or newer | Not stated |
The template is finished and tested. It is not on sale yet; this page will say where to get it when it is.
Coming soon
Not published on its store yet, so there is no buy or download link. PN Scripts does not take payment for it here.