Unity Project

reference
https://cardgames.io/yahtzee/

Library/PackageCache/com.unity.timeline@1.2.15/Editor/Animation/AnimationClipActions.cs

@@ -0,0 +1,96 @@
+using System.ComponentModel;
+using System.Linq;
+using JetBrains.Annotations;
+using UnityEngine;
+using UnityEngine.Timeline;
+using UnityEngine.Playables;
+using ClipAction = UnityEditor.Timeline.ItemAction<UnityEngine.Timeline.TimelineClip>;
+
+namespace UnityEditor.Timeline
+{
+    [MenuEntry("Match Offsets To Previous Clip", MenuOrder.CustomClipAction.AnimClipMatchPrevious), UsedImplicitly]
+    class MatchOffsetsPreviousAction : ClipAction
+    {
+        public override bool Execute(WindowState state, TimelineClip[] items)
+        {
+            AnimationOffsetMenu.MatchClipsToPrevious(state, items.Where(x => IsValidClip(x, TimelineEditor.inspectedDirector)).ToArray());
+            return true;
+        }
+
+        private static bool IsValidClip(TimelineClip clip, PlayableDirector director)
+        {
+            return clip != null &&
+                clip.parentTrack != null &&
+                (clip.asset as AnimationPlayableAsset) != null &&
+                clip.parentTrack.clips.Any(x => x.start < clip.start) &&
+                TimelineUtility.GetSceneGameObject(director, clip.parentTrack) != null;
+        }
+
+        protected override MenuActionDisplayState GetDisplayState(WindowState state, TimelineClip[] items)
+        {
+            if (!items.All(TimelineAnimationUtilities.IsAnimationClip))
+                return MenuActionDisplayState.Hidden;
+
+            var director = TimelineEditor.inspectedDirector;
+            if (TimelineEditor.inspectedDirector == null)
+                return MenuActionDisplayState.Hidden;
+
+            if (items.Any(c => IsValidClip(c, director)))
+                return MenuActionDisplayState.Visible;
+
+            return MenuActionDisplayState.Hidden;
+        }
+    }
+
+    [MenuEntry("Match Offsets To Next Clip", MenuOrder.CustomClipAction.AnimClipMatchNext), UsedImplicitly]
+    class MatchOffsetsNextAction : ClipAction
+    {
+        public override bool Execute(WindowState state, TimelineClip[] items)
+        {
+            AnimationOffsetMenu.MatchClipsToNext(state, items.Where(x => IsValidClip(x, TimelineEditor.inspectedDirector)).ToArray());
+            return true;
+        }
+
+        private static bool IsValidClip(TimelineClip clip, PlayableDirector director)
+        {
+            return clip != null &&
+                clip.parentTrack != null &&
+                (clip.asset as AnimationPlayableAsset) != null &&
+                clip.parentTrack.clips.Any(x => x.start > clip.start) &&
+                TimelineUtility.GetSceneGameObject(director, clip.parentTrack) != null;
+        }
+
+        protected override MenuActionDisplayState GetDisplayState(WindowState state, TimelineClip[] items)
+        {
+            if (!items.All(TimelineAnimationUtilities.IsAnimationClip))
+                return MenuActionDisplayState.Hidden;
+
+            var director = TimelineEditor.inspectedDirector;
+            if (TimelineEditor.inspectedDirector == null)
+                return MenuActionDisplayState.Hidden;
+
+            if (items.Any(c => IsValidClip(c, director)))
+                return MenuActionDisplayState.Visible;
+
+            return MenuActionDisplayState.Hidden;
+        }
+    }
+
+    [MenuEntry("Reset Offsets", MenuOrder.CustomClipAction.AnimClipResetOffset), UsedImplicitly]
+    class ResetOffsets : ClipAction
+    {
+        public override bool Execute(WindowState state, TimelineClip[] items)
+        {
+            AnimationOffsetMenu.ResetClipOffsets(state, items.Where(TimelineAnimationUtilities.IsAnimationClip).ToArray());
+            return true;
+        }
+
+        protected override MenuActionDisplayState GetDisplayState(WindowState state, TimelineClip[] items)
+        {
+            if (!items.All(TimelineAnimationUtilities.IsAnimationClip))
+                return MenuActionDisplayState.Hidden;
+
+            return MenuActionDisplayState.Visible;
+        }
+    }
+}