baseq3 cagifier

cagify.sh

#!/bin/bash

# Replaces all textures in Q3A with Nick Cage, as pitched by Nerdcore
# http://www.nerdcore.de/2017/10/05/that-time-some-gamedev-replaced-every-texture-with-nicolas-cage/
# commenting on @AmazingThew
# https://twitter.com/AmazingThew/status/915787837349531648
# Example output:
# https://vimeo.com/237570637
#
# USAGE
#   ./cagify.sh PATH-TO-BASEQ3 PATH-TO-NICK-IMAGE
#
# You'll need imagemagick, zip & unzip. Tested with Arch Linux's find, bash, etc.

BASEQ3="$1"
BASENICK="$2"
TMP="/tmp"
ZIPTMP="/tmp/nickzip"

for pk3path in $BASEQ3/*.pk3; do
	pk3=$(basename "$pk3path")
	# unfortunately archivemount doesn't work - it turns the ZIPs into TARs...
	#mntdir="$TMP/mnt_$pk3"
	#mkdir -v "$mntdir"
	#archivemount "$pk3path" "$mntdir"
	echo "$pk3path..."
	unzip "$pk3path" -d "$ZIPTMP"
	for img in $(find "$ZIPTMP" -regextype grep -iregex '.*\(jpg\|tga\)$'); do
		size="$(identify -format "%[fx:w]x%[fx:h]" "$img")"
		ext="${img##*.}"
		nick="$TMP/nick_$size.$ext"
		echo "$img: $size $ext"
		if [ ! -f "$nick" ] ; then
			convert -verbose "$BASENICK" -resize $size! "$nick"
		fi
		cp -v "$nick" "$img"
	done
	cd "$ZIPTMP"
	zip -ur "$pk3path" *
	cd -
	rm -rf "$ZIPTMP" # careful
	#fusermount -u "$mntdir"
	#rmdir -v "$mntdir"
done