Texture packer unpacker (jq and imagmagick (convert) required)

unpacker.sh

#!/bin/bash

if [ -z $1 ]; then
	echo "Atlas cropper 2018 v666 by Ilya Kolbin"
	echo "Usage: ./crop_atlas.sh <atlas.json> <output_path>"
	echo "Atlas is json like {"frames":{<filename>:<frame>:{x,y,w,h}}}"
fi

IMG=$(cat $1 | jq -j ".meta.image")

cat $1 | jq -j --unbuffered ".frames|to_entries|.[]|\"convert $IMG -crop \",.value.frame.w,\"x\",.value.frame.h,\"+\",.value.frame.x,\"+\",.value.frame.y,\" \",.key,\"\n\"" | bash