an idea for a 'game description language' for board games inspired by the Plain English programming language

carnac.gdl

name: Carnac
players: 2
components: 
- 28 megaliths
- 3 boards

board sizes: small, medium, and large.

player actions are: proceed and skip.

to check if able to topple:
    if no megalith, return unable.
    check for two contiguous free spaces next to the megalith.
    if there are no free spaces, return unable.
    else return able

to topple a megalith:
    choose the last placed megalith
    turn it on its side, leaving the space it started on free

to check if able to erect:
    if megalith pool is empty, return unable
    check for free spaces on the board
    if there are no free spaces, return unable
    else return able

to erect a new megalith:
    take a megalith from the pool
    place it on an empty square on a short side

setup:
    choose board size
    set aside the 28 megaliths
    players choose colours (red or white)
    choose active player
    goto game

game:
    :topple megalith if able
    :erect new megalith if able
    goto end if unable
    switch player
    goto game:erect if player action is proceed
    goto game:topple if player action is skip

end:
    count contiguous groups of size 3 or greater
    player with most groups of their own colour wins
    player with largest group wins if tied