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Assets/Plugins/RootMotion/Editor/Baker/Helpers/AnimationUtilityExtended.cs

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+using UnityEngine;
+using System.Collections;
+using UnityEditor;
+
+namespace RootMotion
+{
+    public static class AnimationUtilityExtended
+    {
+
+        /// <summary>
+        /// Copies the curves with the specified property names from clipFrom to clipTo.
+        /// </summary>
+        /// <param name="fromClip">copy from clip.</param>
+        /// <param name="toClip">paste to clip</param>
+        /// <param name="propertyNames">Property names ("Root.T", "Root.Q", "LeftFoot.T"...).</param>
+        public static void CopyCurves(AnimationClip fromClip, AnimationClip toClip, string[] propertyNames)
+        {
+            EditorCurveBinding[] bindings = AnimationUtility.GetCurveBindings(fromClip);
+
+            for (int i = 0; i < bindings.Length; i++)
+            {
+                for (int n = 0; n < propertyNames.Length; n++)
+                {
+                    if (bindings[i].propertyName == propertyNames[n])
+                    {
+                        CopyCurve(fromClip, toClip, bindings[i]);
+                    }
+                }
+            }
+        }
+
+        public static void CopyCurve(AnimationClip fromClip, AnimationClip toClip, EditorCurveBinding binding)
+        {
+            AnimationCurve curve = AnimationUtility.GetEditorCurve(fromClip, binding);
+            toClip.SetCurve(string.Empty, typeof(Animator), binding.propertyName, curve);
+        }
+    }
+}