backup with fully working version, only one texture renders

nonpacks/library/vanilla_textures.py

@@ -50,6 +50,26 @@ _LAYER_KEYWORDS = (
     '_fur', '_shell', '_crackiness',
 )
 
+# Entities whose base skin is one of several fur/colour variants. The preview
+# picks one at random so the model matches the variety the pack shows in-game.
+VARIANTS = {
+    'wolf': [
+        'wolf/wolf.png', 'wolf/wolf_ashen.png', 'wolf/wolf_black.png',
+        'wolf/wolf_chestnut.png', 'wolf/wolf_rusty.png', 'wolf/wolf_snowy.png',
+        'wolf/wolf_spotted.png', 'wolf/wolf_striped.png', 'wolf/wolf_woods.png',
+    ],
+    'fox': ['fox/fox.png', 'fox/snow_fox.png'],
+    'cat': [
+        'cat/tabby.png', 'cat/black.png', 'cat/red.png', 'cat/siamese.png',
+        'cat/british_shorthair.png', 'cat/calico.png', 'cat/persian.png',
+        'cat/ragdoll.png', 'cat/white.png', 'cat/jellie.png', 'cat/all_black.png',
+    ],
+    'cow': [
+        'cow/temperate_cow.png', 'cow/cold_cow.png', 'cow/warm_cow.png',
+        'cow/red_mooshroom.png', 'cow/brown_mooshroom.png',
+    ],
+}
+
 
 def _base_candidates(entity):
     """Return (entity, [candidate relative paths]) in priority order."""
@@ -77,7 +97,7 @@ def _base_candidates(entity):
 
 
 def refresh_vanilla_index():
-    """Rebuild the entity → base-skin map from the extracted vanilla set."""
+    """Rebuild the entity → {default, variants} skin map from the vanilla set."""
     root = os.path.join(settings.MEDIA_ROOT, 'vanilla', ENTITY_ROOT)
     if not os.path.isdir(root):
         raise FileNotFoundError(f'{root} missing — extract vanilla entity textures first')
@@ -87,19 +107,23 @@ def refresh_vanilla_index():
         rel = os.path.join(root, entry)
         if entry.endswith('.png'):
             entity = entry[:-4]
-            if not index.get(entity):
-                index[entity] = entry
+            index.setdefault(entity, {'default': entry, 'variants': [entry]})
             continue
         if not os.path.isdir(rel):
             continue
         entity = entry
         _, candidates = _base_candidates(entity)
-        if candidates and not index.get(entity):
-            index[entity] = candidates[0]
+        if candidates and entity not in index:
+            index[entity] = {'default': candidates[0], 'variants': [candidates[0]]}
 
     for entity, rel in ALIASES.items():
-        if not index.get(entity):
-            index[entity] = rel
+        if entity not in index:
+            index[entity] = {'default': rel, 'variants': [rel]}
+
+    for entity, variants in VARIANTS.items():
+        if entity in index and variants:
+            index[entity]['default'] = variants[0]
+            index[entity]['variants'] = variants
 
     out = os.path.join(settings.MEDIA_ROOT, 'vanilla', INDEX_NAME)
     with open(out, 'w') as f: