right and light

right-light.sh

#!/bin/bash
set -ue
voices=($(say -v '?' | egrep 'en_US|en_UK' | egrep -v 'Pipe Organ|Bubbles|Bells|Bahh|Hysterical|Boing|Bad|Albert'| awk '{print $1}'))
nr_voices=${#voices[@]}

correct=0
wrong=0

RANDMAX=32767

hist=()
for i in {1..10}
do
    #v=$((RANDOM % nr_voices))
    v=$((RANDOM / (RANDMAX / nr_voices) ))
    eval rand_voice="\${voices[$v]}"
    #if (( RANDOM % 2 == 0 ))
    if (( RANDOM > RANDMAX/2 ))
    then
        ans=right
        say -v "$rand_voice" 'right'
    else
        ans=light
        say -v "$rand_voice" 'light'
    fi
    read -p "Answer? [r/l] " guess
    if [ "${guess:0:1}" = "${ans:0:1}" ]
    then
        echo "    > Correct: it was $ans (voice=${rand_voice})"
        let ++correct
    else
        echo "    > *** WRONG ***: it was $ans (voice=${rand_voice})"
        let ++wrong
    fi
done

echo "correct: $correct"
echo "wrong: $wrong"