Version MFF.

generate_previews.py

@@ -0,0 +1,85 @@
+#!/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"))