bored at the airport... when my brother is around we play this game

songGuesser

#!/usr/bin/env bash

SOURCE=$1
if [ -z "$SOURCE" ]; then
        echo "I need the source directory"
        exit
fi

if [ ! -d "$SOURCE" ]; then
        echo "You did not give me a directory"
        exit
fi

i=0
songs=[]
OIFS=$IFS
IFS=$'\n'
for song in $(find "$SOURCE" -type f -iregex '.*\(mp3\|wav\)'); do
        songs[$i]="$song"
        let i+=1
done

if [ $i -lt 4 ]; then
        echo "not enough songs..."
        exit
fi
IFS=$OIFS
guess=[]
while true; do


#       yeah... not so clean
        index1=$(($RANDOM % $i))

        index2=$(($RANDOM % $i))
        while [ $index1 -eq $index2 ]; do
                index2=$(($RANDOM % $i))
        done

        index3=$(($RANDOM % $i))
        while [ $index1 -eq $index3 ] || [ $index2 -eq $index3 ]; do
                index3=$(($RANDOM % $i))
        done

        index4=$(($RANDOM % $i))
        while [ $index1 -eq $index4 ] || [ $index2 -eq $index4 ] || [ $index3 -eq $index4 ]; do
                index4=$(($RANDOM % $i))
        done

        guess[0]=${songs[$index1]}
        guess[1]=${songs[$index2]}
        guess[2]=${songs[$index3]}
        guess[3]=${songs[$index4]}

        toPlay=$(($RANDOM % 4))
        mplayer -quiet "${guess[$toPlay]}" &> /dev/null &

        echo "CHOICE 1: $(basename "${guess[0]}")"
        echo "CHOICE 2: $(basename "${guess[1]}")"
        echo "CHOICE 3: $(basename "${guess[2]}")"
        echo "CHOICE 4: $(basename "${guess[3]}")"
        ANSWER=""
        while [ -z $ANSWER ]; do
                read ANSWER
        done
        let toPlay+=1
        if [ $ANSWER -eq $toPlay ]; then
                echo "YOU GOT IT"
        else
                echo "WRONG"
                echo "ANSWER IS: $(basename "${guess[$(($toPlay - 1))]}")"
                echo ""

        fi

        pkill mplayer
done