randomConway

#!/bin/bash

function usage
{
    cat <<EOF
USAGE:
    $0 options

OPTIONS
    -f The boolean function to used to initialse the conway board. - requests a random 
       function. Omitting this defaults to $FUNC

    -r Use random start conditions for the boolean function. Defaults to $RAND

    -g The number of generations to run (this program will stop if the board stagnates).
       Defaults to $GENERATIONS

    -d The delay between displayed frames. Defaults to $DELAY

    -e Eternal mode. This will restart if the board stagnates or everything dies.
       This only really makes sense if you are using either a random function or random
       initial conditions. Defaults to $ETERNAL

    -h Display this message

    .  Run with default options (only valid as a single argument)
EOF
}

function runConway
{
    HEIGHT=$(( $(stty size | cut -d' ' -f1) - 3))
    WIDTH=$(( $(stty size | cut -d' ' -f2) - 3))

    if [[ $FUNC -eq -1 ]]; then
        RUNFUNC="$(( ${RANDOM} % 256 ))"
    else
        RUNFUNC=$FUNC
    fi

    ./conway <(./boolnet $RUNFUNC $WIDTH $HEIGHT $RAND 2> /dev/null) $HEIGHT $WIDTH $GENERATIONS 2> /dev/null| ./animate.pl $HEIGHT $WIDTH $DELAY
}

FUNC=110
RAND=0
GENERATIONS=100
DELAY="0.07"
ETERNAL=0

if [[ $# -eq 0 ]]; then
    usage
    exit 1
fi

while getopts "hf:rg:d:e" OPTION
do
    case $OPTION in
        h) usage; exit 1 ;;
        r) RAND=1 ;;
        e) ETERNAL=1 ;;
        f) 
            if [[ $OPTARG == '-' ]]; then
                FUNC=-1
            elif [[ "$OPTARG" -ge 0 && "$OPTARG" -lt 256 ]]; then
                FUNC=$OPTARG
            else
                echo "Function must be between 0 and 255"
                exit 1;
            fi
            ;;
        g) 
            if [[ $OPTARG == '-' ]]; then
                GENERATIONS=-1
            elif [[ $OPTARG -ge 0 ]]; then
                GENERATIONS=$OPTARG
            else
                echo "Generations must be a positive integer or '-' for unlimited"
            fi
            ;;
        d)
            DELAY=$(echo "$OPTARG" | grep -oP "(\d*.?\d+)")
            [[ $DELAY == "" ]] && DELAY=0
            ;;
    esac
done

if [[ $ETERNAL -eq 1 ]]; then
    while true; do runConway; done
else
    runConway
fi