Add project files.

AssetStudio/Classes/AnimatorOverrideController.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
+{
+    public class AnimationClipOverride
+    {
+        public PPtr<AnimationClip> m_OriginalClip;
+        public PPtr<AnimationClip> m_OverrideClip;
+
+        public AnimationClipOverride(ObjectReader reader)
+        {
+            m_OriginalClip = new PPtr<AnimationClip>(reader);
+            m_OverrideClip = new PPtr<AnimationClip>(reader);
+        }
+    }
+
+    public sealed class AnimatorOverrideController : RuntimeAnimatorController
+    {
+        public PPtr<RuntimeAnimatorController> m_Controller;
+        public AnimationClipOverride[] m_Clips;
+
+        public AnimatorOverrideController(ObjectReader reader) : base(reader)
+        {
+            m_Controller = new PPtr<RuntimeAnimatorController>(reader);
+
+            int numOverrides = reader.ReadInt32();
+            m_Clips = new AnimationClipOverride[numOverrides];
+            for (int i = 0; i < numOverrides; i++)
+            {
+                m_Clips[i] = new AnimationClipOverride(reader);
+            }
+        }
+
+        public override bool IsContainsAnimationClip(AnimationClip clip)
+        {
+            AnimationClip animationClip;
+            foreach (AnimationClipOverride overClip in m_Clips)
+            {
+                if (overClip.m_OriginalClip.TryGet(out animationClip) && animationClip.Equals(clip))
+                {
+                    return true;
+                }
+                else if (overClip.m_OverrideClip.TryGet(out animationClip) && animationClip.Equals(clip))
+                {
+                    return true;
+                }
+            }
+            if (m_Controller.TryGet(out var baseController))
+            {
+                return baseController.IsContainsAnimationClip(clip);
+            }
+            return false;
+        }
+    }
+}