#!/bin/sh
# $Id: cut4,v 1.1 1998/09/07 14:03:50 christof Exp $
#
# this script takes a big roborally picture (ppm) 
# and cut's it into 4 pieces (gif)
#
RM=rm

if [ ! -f ${1}.ppm ] 
then echo USAGE: $0 '<filename without .ppm>'; 
	exit 1
fi

pnmcut 0 0 379 379 <${1}.ppm | ppmquant -fs 256 | ppmtogif >${1}1.gif
pnmcut 378 0 379 379 <${1}.ppm | ppmquant -fs 256 | ppmtogif >${1}2.gif
pnmcut 0 378 379 379 <${1}.ppm | ppmquant -fs 256 | ppmtogif >${1}3.gif
pnmcut 378 378 379 379 <${1}.ppm | ppmquant -fs 256 | ppmtogif >${1}4.gif