Pokertimezilla in ZSH

poktertimezilla.zsh

#!/bin/zsh
emulate -L zsh

b=(1 2 2 4 5 10 10 20 25 50 50 100 100 200 200 400 400 800 800 1600 1600 3200 3200 6400 6400 12800)
c=1
rt=5
while [ "$c" -le "${#b}" ]; do
       for i in {$rt..0}; do
               sleep 1
               print -n "Time: ${(l:2::0:)$((i/60))}:${(l:2::0:)$((i%60))} Blinds: $b[$c], $b[$c+1]\r"
       done
       ((c+=2))
       print "\r\nNext round!\r\n"
done