Added text-based BMFont parser

tools/bmfont/text_bmfont.py

@@ -0,0 +1,65 @@
+import sys,struct,re,json,shlex
+from PIL import Image
+from collections import OrderedDict
+
+NAMES=('','info','common','page','chars')
+def decodeToNames(layout, dstring):
+	results=re.findall('^([A-Za-z]):(.+)\n',layout,re.MULTILINE)
+
+	parts=struct.unpack('<'+''.join(x[0] for x in results),dstring)
+	out={}
+	for k, part in zip([x[1] for x in results],parts):
+		out[k] = part
+	return out
+
+def decodeLine(parts):
+	return OrderedDict([kv.split('=',) for kv in parts])
+
+
+def parseLine(combined_info, line):
+	info = OrderedDict()
+	typename = info['typename'] = line[0]
+	info.update(decodeLine(line[1:]))
+	for key, value in info.items():
+		try:
+			info[key] = int(value)
+		except ValueError:
+			pass
+	if typename in ('info','common','page'):
+		combined_info[typename] = info
+	elif typename == 'char':
+		if 'chars' not in combined_info:
+			combined_info['chars']=OrderedDict()
+		combined_info['chars'][info['id']]=info
+	return info
+
+
+im=Image.open(sys.argv[2])
+combined_info={}
+with open(sys.argv[1], 'r') as f:
+	for line in f:
+		parts = shlex.split(line)
+		parseLine(combined_info, parts)
+
+
+chars=combined_info['chars']
+w=sum(char['xadvance'] for char in chars.values()) 
+h=max(char['height'] for char in chars.values())
+outim=Image.new('RGBA',(w,h))
+outim.paste((0,0,0,0),(0,0,w,h))
+json_out={}
+outx=0
+for k,char in chars.items():
+	x,y=char['x'],char['y']
+	tile=im.crop((x,y,x+char['width'],y+char['height']))
+	outim.paste(tile,(outx+char['xoffset'],char['yoffset']))
+	json_out[k]={
+		'x':outx,
+		'w':char['xadvance'],
+		'h':h
+	}
+	outx+=char['xadvance']
+
+outim.save(sys.argv[3])
+with open(sys.argv[4],'wb') as f:
+	json.dump(json_out,f)