Programming :: Pass Variable From One Shell Script Into Another

I have some messy code that I wrote a while back and I am trying to organize it. The program opens xpaint and uses xwit and xte to draw packman and so on. I want to split it all up I am going to add more to it. Basically like i would want drawing packman in one function i guess you could call it and then coloring him or the background in another

<code>
#!/bin/bash
pkill xpaint
res=`xwininfo -root | grep geom | sed -e 's/^.*try ([0-9][0-9]*x[0-9][0-9]*)+.*$/1/'`
Xoriginal=`echo $res | cut -d 'x' -f 1`
Yoriginal=`echo $res | cut -d 'x' -f 2`

X=`echo "($Xoriginal/2)-400" | bc `
Y=`echo "$Yoriginal/2" | bc `
#t=$(($Y/2))
bob=`echo "$Y/2" |bc `
echo $X
echo $Y

/usr/bin/xpaint -size "$Xoriginal"x"$Yoriginal" -popped &
sleep 4
paintersMom=`xwit -all -print | grep XP | cut -d ":" -f 1`
canvasWin=`xwit -all -print | grep Untitled | cut -d ":" -f 1`
#toolres=`xwininfo -id $paintersmom | grep geom | sed -e 's/^.*try ([0-9][0-9]*x[0-9][0-9]*)+.*$/1/'`
#canres=`xwininfo -id $canvasWin | grep geom | sed -e 's/^.*try ([0-9][0-9]*x[0-9][0-9]*)+.*$/1/'`

#echo $paintersMom
xwit -id $paintersMom -move 0 0
xwit -id $canvasWin -move 0 0
xwit -root -warp "$X" "$Y"
sleep 4
for((i=45; i < 315; i++))
do
xte 'mousedown 1'
ang=`./deg2rad $i`

movex=`echo "$X+$bob*c($ang)" | bc -l`
movey=`echo "$Y+$bob*s($ang)" | bc -l`
xwit -root -warp "$movex" "$movey"
done
xwit -root -warp "$X" "$Y"
xte 'mouseup 1'

#xwit -id $paintersMom -focus -raise
#sleep 1
#xwit -id $paintersMom -warp 30 390 #// fill in command on tool bar
#sleep 1
#xte 'mouseclick 1'
#sleep 1
#xwit -id $canvasWin -warp 221 40 #// color selection
#sleep 1
#xte 'mouseclick 1'
#sleep 1
#xwit -id $canvasWin -warp "$(($X-150))" "$Y" #//location on pac man
#sleep 1
#xte 'mouseclick 1'
#sleep 1

#xwit -id $canvasWin -warp 62 44 #// selecting color black
#sleep 1
#xte 'mouseclick 1'
#sleep 1
#xwit -root -warp 62 120 #// selecting back to canvas
#sleep 1
#xte 'mouseclick 1' #// color canvas black
#sleep 1
#xwit -id $paintersMom -focus -raise
#xwit -id $paintersMom -warp 27 108 #//click back to pencil
#sleep 1
#xte 'mouseclick 1'
#sleep 1
</code>

Here for example $paintersmom is would be in the drawing of pacman but I would also want to use it when I colored him in.. but I would want both processes in a different shell script.