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server-nalc/mods/u_skins/generate_previews.py

86 lines
2.6 KiB
Python
Executable File

#!/bin/env python2
from __future__ import print_function
import sys, os, subprocess
from os import listdir
from os.path import isfile, join, sep
def eprint(*args, **kwargs):
print(*args, file=sys.stderr, **kwargs)
def which(program):
import os
def is_exe(fpath):
return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
fpath, fname = os.path.split(program)
if fpath:
if is_exe(program):
return program
else:
for path in os.environ["PATH"].split(os.pathsep):
path = path.strip('"')
exe_file = os.path.join(path, program)
if is_exe(exe_file):
return exe_file
return None
try:
from PIL import Image
except ImportError:
eprint("Could not import PIL, is it installed ?")
sys.exit(1)
uskins_path = "u_skins"
meta_path = join(uskins_path, "meta")
textures_path = join(uskins_path, "textures")
pngcrush = which('pngcrush')
optipng = which('optipng')
def process_copies(src, dst, copies):
for copy in copies:
srcrect = copy[0]
dstrect = copy[1]
flip = copy[2] if len(copy) > 2 else None
region = src.crop(srcrect)
if flip is not None:
region = region.transpose(flip)
dst.paste(region, dstrect)
def make_preview(src, dst):
skin = Image.open(src)
preview = Image.new('RGBA', (16, 32))
process_copies(skin, preview, [
[(8, 8, 16, 16), (4, 0)], # Head
[(44, 20, 48, 32), (0, 8)], # Left arm
[(44, 20, 48, 32), (12, 8), Image.FLIP_LEFT_RIGHT], # Right arm
[(20, 20, 28, 32), (4, 8)], # Body
[(4, 20, 8, 32), (4, 20)], # Left leg
[(4, 20, 8, 32), (8, 20), Image.FLIP_LEFT_RIGHT], # Right leg
])
overlay = Image.new('RGBA', (16, 32))
process_copies(skin, overlay, [
[(40, 8, 48, 16), (4, 0)], # Head
])
preview = Image.alpha_composite(preview, overlay)
preview.save(dst)
if optipng is not None:
p = subprocess.Popen([optipng, '-o7', '-quiet', dst])
p.wait()
elif pngcrush is not None:
p = subprocess.Popen([pngcrush, '-ow', '-s', dst])
p.wait()
if __name__ == '__main__':
metas = [f for f in listdir(meta_path) if
isfile(join(meta_path, f)) and
f.endswith(".txt")]
for meta in metas:
f = open(join(meta_path, meta), 'r')
metadata = f.read().splitlines()
f.close()
skin = meta[:-4]
print("Processing {} \"{}\" by {} ({})...".format(skin, metadata[0], metadata[1], metadata[2]))
make_preview(join(textures_path, skin + ".png"), join(textures_path, skin + "_preview.png"))