💾 Archived View for gemini.thegonz.net › static-sggs › games-src › rps › rps.sh captured on 2021-12-04 at 18:04:22.
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#!/bin/bash
# Rock-paper-scissors implementation for sggs
# Copyright (C) 2021 Martin Bays <mbays@sdf.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of version 3 of the GNU General Public License as
# published by the Free Software Foundation, or any later version.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see http://www.gnu.org/licenses/.
FIRST_TO=5
command="$1"
shift
case "$command" in
describe) echo "Rock-paper-scissors";;
help) echo "The classic game of psychology and luck.";;
players) echo 2;;
setarg) ;;
init) echo 0 > score1; echo 0 > score2;;
showstate)
if [ "$1" = 0 ]; then
# Observer
echo "Scores: $(<score1) - $(<score2) (first to $FIRST_TO wins)"
[ -e "last1" ] && echo "P1 played: $(<last1)"
[ -e "last2" ] && echo "P2 played: $(<last2)"
exit 0
fi
[[ "$1" = 1 || "$1" = 2 ]] || exit 1
echo "Scores: YOU $(<score$1) - $(<score$((3-$1))) THEM (first to $FIRST_TO wins)"
[ -e "last$1" ] && echo "You played: $(<last$1)"
[ -e "last$((3-$1))" ] && echo "They played: $(<last$((3-$1)))"
[ -e "next$1" ] && echo && echo "Your next move: $(<next$1)"
;;
canmove)
[ -e won ] && exit 5
[[ "$1" = 1 || "$1" = 2 ]] || exit 4
[ -e "next$1" ] && exit 4
echo "=> move?R Play rock"
echo "=> move?P Play paper"
echo "=> move?S Play scissors";;
move)
[ -e won ] && echo "Game over!" && exit 4
[[ "$1" = 1 || "$1" = 2 ]] || exit 4
[ -e "next$1" ] && echo "Move already selected." && exit 4
[[ "$2" != [RPS] ]] && echo "R/P/S" && exit 1
if [ -e "next$((3-$1))" ]; then
if [ $1 = 1 ]; then
c1=$2
c2=$(<"next2")
else
c1=$(<"next1")
c2=$2
fi
if [ "$c1" != "$c2" ]; then
if [[ "$c1$c2" =~ (RS|SP|PR) ]]; then
w=1
else
w=2
fi
newscore="$(($(<score$w)+1))"
[ "$newscore" = "$FIRST_TO" ] && echo $w > won
echo "$newscore" > score$w
fi
mv "next$((3-$1))" "last$((3-$1))"
echo "$2" > "last$1"
else
echo "$2" > "next$1"
fi;;
resign) [[ "$1" = 1 || "$1" = 2 ]] && echo "$((3-$1))" > won;;
winner)
[ -e won ] || exit 1
cat won;;
esac
exit 0