#!/bin/bash

#$1 and $2 are folders for the background foto. $3 is folder for twirling photo.
#file number to start with
COUNT=1
COUNT1=1
COUNT2=1
COUNT3=1


# total number of original files: fourth argument

N1=$(ls $1 | wc -l) 
N2=$(ls $2 | wc -l)
N3=$(ls $3 | wc -l)

highest_number=0
for x in $N1 $N2 $N3
do
if [ $x -gt $highest_number ]
then
highest_number=$x
fi
done

OTOTAL=$highest_number

# loop to call up the files to process. calls up files numbered from 000-999 in accending order


while [ $COUNT -le $OTOTAL ]; do

if [ $COUNT1 -le $N1 ]; then
    VAR1=$(printf "%03d" $COUNT1)

else    VAR1=$(printf "%03d" 1)
    COUNT1=1

fi 
echo " $1 = $VAR1 "


if [ $COUNT2 -le $N2 ]; then
    VAR2=$(printf "%03d" $COUNT2)



else    VAR2=$(printf "%03d" 1)
    COUNT2=1


fi
echo " $2 = $VAR2 "

if [ $COUNT3 -le $N3 ]; then
    VAR3=$(printf "%03d" $COUNT3)

else VAR3=$(printf "%03d" 1)    
COUNT3=1

fi
echo " $3 = $VAR3 "
let COUNT=COUNT+1
let COUNT1=COUNT1+1
let COUNT2=COUNT2+1
let COUNT3=COUNT3+1
done