Replace namehash function with correct jenkins function

ModelImporter/import_scene.py

@@ -569,7 +569,7 @@ def _add_empty_to_scene(self, scene_node: SceneNodeData,
                     j = 3 - empty_obj.NMSReference_props.num_lods
                     for _ in range(j):
                         lods.append(0)
-                empty_obj.NMSReference_props.lod_levels = lods
+                empty_obj.NMSReference_props.lod_levels = lods[:3]
                 empty_obj.NMSReference_props.has_lods = True
 
             # Add a custom property so that if it is exported with the

NMS/classes/Object.py

@@ -3,7 +3,6 @@
 # as child objects.
 
 from typing import Optional
-from zlib import crc32
 
 from .TkSceneNodeData import TkSceneNodeData
 from .TkSceneNodeAttributeData import TkSceneNodeAttributeData
@@ -16,6 +15,19 @@
 TYPES = ['MESH', 'LOCATOR', 'COLLISION', 'MODEL', 'REFERENCE']
 
 
+def jenkins_one_at_a_time(data: str) -> int:
+    # https://en.wikipedia.org/wiki/Jenkins_hash_function#one_at_a_time
+    hash = 0
+    for char in data.upper():
+        hash = (hash + ord(char)) & 0xFFFFFFFF
+        hash = (hash + (hash << 10)) & 0xFFFFFFFF
+        hash = (hash ^ (hash >> 6)) & 0xFFFFFFFF
+    hash = (hash + (hash << 3)) & 0xFFFFFFFF
+    hash = (hash ^ (hash >> 11)) & 0xFFFFFFFF
+    hash = (hash + (hash << 15)) & 0xFFFFFFFF
+    return hash
+
+
 class Object():
     """ Structure:
     TkSceneNodeData:
@@ -219,9 +231,7 @@ def NameHash(self) -> int:
         orig_name_hash = self.orig_node_data.get('NameHash', None)
         if orig_name_hash:
             return orig_name_hash
-        byte_name = bytes(self.Name, encoding='utf-8')
-        # do bit operation to ensure it's always unsigned
-        return crc32(byte_name) & 0xFFFFFFFF
+        return jenkins_one_at_a_time(self.Name)
 
 
 class Locator(Object):

__init__.py

@@ -1,7 +1,7 @@
 bl_info = {
     "name": "No Man's Sky Development Kit",
     "author": "gregkwaste, monkeyman192",
-    "version": (0, 9, 25),
+    "version": (0, 9, "26a"),
     "blender": (4, 0, 0),
     "location": "File > Export/Import",
     "description": "Create NMS scene structures and export to NMS File format",