Add AacFlBase.DuplicateAsset

Framework/Editor/V1/Aac.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using UnityEditor;
 using UnityEditor.Animations;
 using UnityEngine;
+using Object = UnityEngine.Object;
 
 // ReSharper disable once CheckNamespace
 namespace AnimatorAsCode.V1
@@ -339,6 +340,12 @@ namespace AnimatorAsCode.V1
                     .WithUnit(unit, keyframes => keyframes.Constant(0, 0f).Constant(numberOf, 0f)));
         }
 
+        /// Duplicate a new asset into the container and return it. For example, use this to create modified material variants. This asset will be removed the same way as other generated assets.
+        public T DuplicateAsset<T>(T assetToDuplicate) where T : Object
+        {
+            return AacInternals.DuplicateAssetIntoContainer(_configuration, assetToDuplicate);
+        }
+
         // For backwards compatibility, generates an animation with 2 keyframes that are at a distance of 1 / 60 of 1 frame,
         // that is 1 / 3600 seconds.
         // This was due to DummyClipLasting returning a clip with unit conversion applied twice,

Framework/Editor/V1/AacInternals.cs

@@ -3,6 +3,7 @@ using System.Reflection;
 using UnityEditor;
 using UnityEditor.Animations;
 using UnityEngine;
+using Object = UnityEngine.Object;
 using Random = UnityEngine.Random;
 
 // ReSharper disable once CheckNamespace
@@ -41,6 +42,15 @@ namespace AnimatorAsCode.V1
             return clip;
         }
 
+        internal static T DuplicateAssetIntoContainer<T>(AacConfiguration component, T assetToDuplicate) where T : Object
+        {
+            var duplicated = (T)Object.Instantiate(assetToDuplicate);
+            duplicated.name = "zAutogenerated__" + component.AssetKey + "__" + assetToDuplicate.name + "_" + Random.Range(0, Int32.MaxValue); // FIXME animation name conflict
+            duplicated.hideFlags = HideFlags.None;
+            AssetDatabase.AddObjectToAsset(duplicated, component.AssetContainer);
+            return duplicated;
+        }
+
         internal static EditorCurveBinding Binding(AacConfiguration component, Type type, Transform transform, string propertyName)
         {
             return new EditorCurveBinding