No-nonsense FreeCell game
git clone git://git.luxferre.top/nnfc.git
Log | Files | Refs | README

commit 4b5c40b637a7cba26ffbfd3827457fd40c52d422
parent c0fd3b264dacbb31d2e013477a0dd15beb88ae29
Author: Luxferre <lux@ferre>
Date:   Thu, 18 Jan 2024 12:30:27 +0200

Updated README about POSIX compatibility

AREADME | 63+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+), 0 deletions(-)

diff --git a/README b/README @@ -0,0 +1,63 @@ +nnfc: no-nonsense FreeCell game in under 300 SLOC of POSIX AWK +-------------------------------------------------------------- +This is a simple and straightforward FreeCell implementation that adheres +to the POSIX AWK standard. Within <300 SLOC, it features: + +* simple line-oriented command prompt compatible with standard move notation; +* Unicode/ASCII card suit signs (Unicode by default); +* color/monochrome display selection (color by default); +* M$-FreeCell-compatible deal seeding by the game number; +* FreeCell Pro-compatible supermoves to move stacks of cards between columns; +* FreeCell Pro-compatible card autohoming ("safe autoplay" strategy); +* internal help screen. + +== How to run == + +The game is run as a usual AWK script: + +awk -f nnfc.awk [-v ASCII=1] [-v MONOCHROME=1] [-v SEED=xxxxx] + +Available parameters to pass to the script: + +* `-v ASCII=1`: display Latin letters (c, d, h, s) instead of UTF-8 suits +* `-v MONOCHROME=1`: disable colors when displaying cards (e.g. on e-ink) +* `-v SEED=xxxxx`: set the PRNG seed (game number) to start a predefined game + +== How to play == + +Once run, the game shows the current seed (game) number, the playfield with +all the cards in the traditional columnar layout and a command prompt. +Press Enter/Return after every command entry. + +Move commands are entered with two characters without any separator: + +* 0 or h is foundation/home cell (can be omitted and can only be the second) +* 1 to 8 are column (tableau) numbers +* a to d are freecell IDs + +Examples: + +* 7a: move from column 7 to freecell a +* 63: move (as many cards as possible) from column 6 to column 3 +* d1: move from freecell d to column 1 +* 4 (or 40, or 4h): move from column 4 to the foundation/home cell +* c (or c0, or ch): move from freecell c to the foundation/home cell + +Besides moves, the following commands are available: + +* h: display a help screen +* u: undo the last move (the history is saved from the beginning) +* r: restart (undo to the starting playfield) +* q: quit the game + +== Compatibility == + +Primary testing was done on nawk and busybox awk, but the game should work +correctly on mawk, gawk and any other POSIX-compliant AWK implementation. +Particularly, additional tweaking had been done to make sure the game works +correctly with gawk --posix and mawk -W posix flags. + +== Credits == + +Created by Luxferre in 2024. Released into public domain. +