organization script

Content/Python/helloworld.py

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+import unreal
+
+print("Hello World!")

Content/Python/organize_content.py

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+import re, unreal
+
+FOLDERS = {
+    "material": "Materials",
+    "player":   "Characters/Player",
+    "enemy":    "Characters/Enemy",
+    "particle": "Effects",
+}
+CLASS_FOLDERS = {
+    "World": "Maps",
+    "LevelSequence": "Sequences",
+}
+PREFIXES = {
+    "World": "",
+    "Material": "M_",
+    "MaterialInstanceConstant": "MI_",
+    "StaticMesh": "SM_",
+    "SkeletalMesh": "SK_",
+    "Blueprint": "BP_",
+    "NiagaraSystem": "NS_",
+    "LevelSequence": "LS_",
+}
+
+lib = unreal.EditorAssetLibrary
+for path in lib.list_assets("/Game", recursive=True):
+    path = path.split(".")[0]
+    name = path.rsplit("/", 1)[-1]
+    data = lib.find_asset_data(path)
+    cls = str(data.asset_class_path.asset_name)
+
+    # instance assets are renamed after their parent, not their own name
+    if cls == "MaterialInstanceConstant":
+        parent = lib.load_asset(path).get_editor_property("parent")
+        base = re.sub(r"^(M_|MI_)", "", parent.get_name()) if parent else name
+        suffix = name[len(base):] if name.lower().startswith(base.lower()) else ""
+        name = base + (f"_{suffix.capitalize()}" if suffix else "")
+
+    name = re.sub(r"^(" + "|".join(p for p in PREFIXES.values() if p) + ")", "", name)
+    name = PREFIXES.get(cls, "") + name
+
+    folder = CLASS_FOLDERS.get(cls) or next((f for k, f in FOLDERS.items() if k in name.lower()), "Misc")
+    dest = f"/Game/{folder}/{name}"
+    if path != dest:
+        lib.rename_asset(path, dest)