DEBBASE="${SHORTNAME}-wad_${GAME_PACKAGE_VERSION}_all.deb"

doom_usage() {
	echo "${SHORTNAME} arguments:"  >&2
	printf "\twadfile - path to a ${SHORTNAME}.wad\n" >&2
}

verify_args() {
	if [ $# -ne 1 ]; then
		echo "error: no wadfile specified" >&2
		usage >&2
		doom_usage >&2
		exit 1
	fi
}
checksum() {
	CHECKSUM=`md5sum "$1" | cut -d' ' -f1`
	debug "checksum = $CHECKSUM"
}

WADDIR="/usr/share/games/doom"
DEB="$DATADIR/$DEBBASE"

go() {
	verify_args "$@"
	WADFILE=`unravel "$1"`
    [ -f "$WADFILE" ] || die "ERROR: '$WADFILE' does not exist."
	checksum "$WADFILE"
	debug "WADFILE=$WADFILE"
	check_for_v19

	DEST=`echo $WADDIR | sed 's,^/,,'`

	OUTFILE=`unravel "$OUTDIR"`"/$DEBBASE"
	cp -p "$DEB" "$OUTFILE"
	# Force lower case for *.wad files
	WADFILENAME=`basename "$WADFILE" | tr '[:upper:]' '[:lower:]'`
	ln -sf "$WADFILE" "$WORKDIR/$WADFILENAME"
	slipstream "$OUTFILE" "$DEST" "$WORKDIR/$WADFILENAME"
	rm -f "$WORKDIR/$WADFILENAME"
}
