dotfiles/bin/gradient

39 lines
995 B
Bash
Executable file

#!/usr/bin/env bash
echo ""
COLUMNS=$(tput cols)
line() {
i=1
while [[ $i -le $COLUMNS ]]; do
num=
echo -en "\u258$(($RANDOM % 8 + 1))"
i=$(($i + 1))
done
}
# print the text with gradient
# awk -v columns=$COLUMNS -v s=$(line) \
# 'BEGIN{
# for (colnum = 0; colnum<columns+1; colnum++) {
# r = 255-(colnum*255/columns);
# g = (colnum*510/columns);
# b = (colnum*255/columns);
# if (g>255) g = 510-g;
# printf "\033[48;2;%d;%d;%dm", r,g,b;
# printf "\033[38;2;%d;%d;%dm", 255-r,255-g,255-b;
# printf "%s\033[0m", substr(s,colnum+1,1);
# }
# printf "\n";
# }'
awk -v columns=$COLUMNS -v s=$(line) \
'BEGIN{
for (colnum = 0; colnum<columns+1; colnum++) {
r = 255-(colnum*255/columns);
g = (colnum*510/columns);
b = (colnum*255/columns);
if (g>255) g = 510-g;
printf "\033[38;2;%d;%d;%dm", r,g,b;
printf "%s\033[0m", substr(s,colnum+1,1);
}
printf "\n";
}'