carpet.sh

#!/bin/bash
# Draws an endless carpet
# carpet [REPETITION] [FLICKER_MODE]
[[ $# -gt 0 ]] && s="$1" || s=4
[[ $# -gt 1 ]] && m="$2" || m=0
while :; do
    if [[ -z "$b" ]]; then
        p=$(pyceau -m "$m" -r 18+18 -d $(tput cols)x1 -s "$s")
    else
        p=$(pyceau -m "$m" -r 18+18 -d $(tput cols)x1 -s "$s" -b $b)
    fi
    b_="$b"
    b=$(tail -1 <<< "$p" | awk '{ print $2 }')
    c=$(grep -vE '([a-kn-z]|^$)' <<< "$p")
    [[ "$b" == "$b_" ]] && continue
    grep -qE '^(0+|1+)$' <<< "$b" && b="$b_" || echo "$c"
done