unixchesscollection/render.sh

#!/bin/sh

file=$1

height=$(lib/json.sh -s height $file)
width=$(lib/json.sh -s width $file)
heighti=0

while [ $heighti -ne $height ]
do
	heighti=$((heighti+1))
	widthi=0
	while [ $widthi -ne $width ]
	do
		widthi=$((widthi+1))
		piece=$(lib/json.sh -s ${widthi},${heighti}/piece $file)
		team=$(lib/json.sh -s ${widthi},${heighti}/team $file)
		text=$(lib/json.sh -s ${team}/pieces/${piece}/text $file)
		if [ -z $text ]
		then
			text=" "
		fi
		if [ $(echo "$heighti % 2" | bc) -eq 1 ]
		then 
			if [ $(echo "$widthi % 2" | bc) -eq 1 ]
			then
				printf "$(tput setab 7)$(tput setaf 0) $text"
			else
				printf "$(tput setab 0)$(tput setaf 7) $text"
			fi
		else
			if [ $(echo "$widthi % 2" | bc) -eq 0 ]
			then
				printf "$(tput setab 7)$(tput setaf 0) $text"
			else
				printf "$(tput setab 0)$(tput setaf 7) $text"
			fi
		fi
	done
	printf "\033[m\n"
done

printf '\033[m\n'