A generalized rock-paper-scissors CLI game with arbitrary number of moves and confirmation of the computer's move fairness

How to use:

npm start rock paper scissors lizard spock

npm start -- --help

> [email protected] start
> tsx src/index.ts -h

Usage: rps [options] <moves...>

Generalized rock-paper-scissors cli game

Arguments:
  moves          odd number >=3 of unique moves (labels)

Options:
  -V, --version  output the version number
  -h, --help     display help for command

• supports arbitrary odd number of arbitrary combinations
• accepts moves as cli arguments
  • > = 3 moves
  • odd number of moves
  • moves don't repeat
  • display a nice error msg if the requirements aren't met
• rules: half of the next moves in the circle wins, half of the previous moves in the circle lose
• check that the computer plays fair:
  • generate cryptographically strong random key (>= 256 bits)
  • calculate HMAC (based on SHA2 or SHA3) from the own move as a message with the generated key
  • display the HMAC to the user before his move
• show a list of moves to choose from for the player
• in case of incorrect input show the list again
• show who won, the move of the computer and the original key
• add help option, which displays a table that determines which move wins (headings, Win/Lose/Draw for cells)
• show a link to some service to calc hmac
• at least one class for each: table gen, rules, key gen, hmac calc