Add new script link_directory

unpack_xxxx.py

@@ -0,0 +1,45 @@
+from argparse import ArgumentParser
+from json import load, dump
+import os
+from os.path import splitext, join
+import xxtea
+
+
+def try_decode(fn: str):
+    with open(fn, 'rb') as f:
+        data = f.read(6)
+        if data != b'jiaile':
+            return
+        data = f.read()
+    data = xxtea.decrypt(data, b"6uJL0SF5CQQuPZoW", padding=False)
+    with open(fn, 'wb') as f:
+        f.write(data)
+    print(f"Decrypted {fn}")
+
+def remove_unneed(fn: str):
+    with open(fn, 'r', encoding='utf-8') as f:
+        data = load(f)
+    re = []
+    for i in data['FileReferences']['Textures']:
+        if i.endswith(".pvr.ccz"):
+            re.append(i[0:-8] + '.png')
+        else:
+            re.append(i)
+    data['FileReferences']['Textures'] = re
+    with open(fn, 'w', encoding='utf-8') as f:
+        dump(data, f)
+    print('Removed unneeded files from', fn)
+
+ap = ArgumentParser()
+ap.add_argument('DIR', help='Input Directory')
+args = ap.parse_args()
+for (root, dirname, filename) in os.walk(args.DIR[0]):
+    for fn in filename:
+        ext = splitext(fn)[1].lower()
+        if ext in ['.jpg', '.jpeg', '.png']:
+            try_decode(join(root, fn))
+        elif fn.endswith('.model3.json'):
+            remove_unneed(join(root, fn))
+        elif fn.endswith('.pvr.ccz'):
+            os.remove(join(root, fn))
+            print('Removed', fn)