#!/usr/bin/python
 #
 # Edward Langley (C) 2013
 #
 # For rotating Dwarf Fortress tilesets to workaround TCOD limitations.
 # These tilesets also need to have the pink background removed. (I think)
 #
 import Image
 import numpy
 import argparse
 
 parser = argparse.ArgumentParser()
 parser.add_argument('fro')
 parser.add_argument('to')
 args = parser.parse_args()
 
 file = Image.open(args.fro)
 data = numpy.asarray(file)
 
 tiles = [numpy.split(col,16,1) for col in numpy.split(data,16)]
 tiles = zip(*tiles)
 tiles = [numpy.concatenate(x,1) for x in tiles]
 tiles = numpy.concatenate(tiles)
 Image.fromarray(tiles).save(args.to)