pairwise

What it is

Using finite projective plane to generate card (maybe video) games.

Currently uses package hexmaker to create hextiles based on generated PPs.

Running

go run main.go -flag=value

For instance: go run main.go -order=7 -show=array to display the projective plane order 7.

go run main.go -order=3 -show=text -arrange=solve to run the solver and display the projective plane order 3, "solved" (ie every element appears in exactly one column using OR-Tools)

go run main.go -help for options.

Usage:
  -arrange string
      'shuffle', 'solve', 'test', 'order', or default ''
  -color
      Render in color
  -hexdeck
      Send the PP to hexmaker and make a set of images
  -order int
      Order of the projective plane (default 2)
  -show string
      'text', or 'array', (default no output)

The (commented-out) texmaker part both requires an external library, and seeks to write a test file into etc/test.pdf -- shouldn't be a problem unless you uncomment and try to run the texmaker portion.

Notes

https://www.youtube.com/watch?v=k472YAVzoGU

Fracmaker

The (commented-out) portion(s) of fracmaker seek to create a set of cards with equivalent fractions on each. Lucky gift from the universe, that there are 31 (n^2 + n + 1, for n=5) irreducible fractions from 1/2 to 9/10.

Next

• fix Fracmaker
• generalize geometries and alignment
• figure out how to integrate a solver so as to not leave Go, or have the solver (python) write a file and have pairwise read the file
• Check for deck/ subdirectory before trying to write card images to it, give error or attempt to create the directory
• Add a sheet option for tiling the hexagons for easy printing and cutting prototypes
• Work on generalizing from hexmaker to "make some kind of card shape"
• • Choose edge or corner alignment
• • Check and deal with requests (order 8, hexagon for instance)
• Wrap it all in a shell script until a native Go solver is used
• • Give that wrapper an ability to take in a textfile of parameters
• Introduce a text UI for growing branches of request possibilities
• • Check for incompatible requests, should be handled in the UI