test

My project/Library/PackageCache/com.unity.timeline/Runtime/Utilities/NotificationUtilities.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine.Playables;
+
+namespace UnityEngine.Timeline
+{
+    static class NotificationUtilities
+    {
+        public static ScriptPlayable<TimeNotificationBehaviour> CreateNotificationsPlayable(PlayableGraph graph, IEnumerable<IMarker> markers, PlayableDirector director)
+        {
+            return CreateNotificationsPlayable(graph, markers, null, director);
+        }
+
+        public static ScriptPlayable<TimeNotificationBehaviour> CreateNotificationsPlayable(PlayableGraph graph, IEnumerable<IMarker> markers, TimelineAsset timelineAsset)
+        {
+            return CreateNotificationsPlayable(graph, markers, timelineAsset, null);
+        }
+
+        static ScriptPlayable<TimeNotificationBehaviour> CreateNotificationsPlayable(PlayableGraph graph, IEnumerable<IMarker> markers, IPlayableAsset asset, PlayableDirector director)
+        {
+            ScriptPlayable<TimeNotificationBehaviour> notificationPlayable = ScriptPlayable<TimeNotificationBehaviour>.Null;
+            DirectorWrapMode extrapolationMode = director != null ? director.extrapolationMode : DirectorWrapMode.None;
+            bool didCalculateDuration = false;
+            var duration = 0d;
+
+            foreach (IMarker e in markers)
+            {
+                var notification = e as INotification;
+                if (notification == null)
+                    continue;
+
+                if (!didCalculateDuration)
+                {
+                    duration = director != null ? director.playableAsset.duration : asset.duration;
+                    didCalculateDuration = true;
+                }
+
+                if (notificationPlayable.Equals(ScriptPlayable<TimeNotificationBehaviour>.Null))
+                {
+                    notificationPlayable = TimeNotificationBehaviour.Create(graph,
+                        duration, extrapolationMode);
+                }
+
+                var time = (DiscreteTime)e.time;
+                var tlDuration = (DiscreteTime)duration;
+                if (time >= tlDuration && time <= tlDuration.OneTickAfter() && tlDuration != 0)
+                    time = tlDuration.OneTickBefore();
+
+                if (e is INotificationOptionProvider notificationOptionProvider)
+                    notificationPlayable.GetBehaviour().AddNotification((double)time, notification, notificationOptionProvider.flags);
+                else
+                    notificationPlayable.GetBehaviour().AddNotification((double)time, notification);
+            }
+
+            return notificationPlayable;
+        }
+
+        public static bool TrackTypeSupportsNotifications(Type type)
+        {
+            var binding = (TrackBindingTypeAttribute)Attribute.GetCustomAttribute(type, typeof(TrackBindingTypeAttribute));
+            return binding != null &&
+                (typeof(Component).IsAssignableFrom(binding.type) ||
+                    typeof(GameObject).IsAssignableFrom(binding.type));
+        }
+    }
+}