Initial Commit

Library/PackageCache/com.unity.timeline@1.5.4/Runtime/Activation/ActivationTrack.cs

@@ -0,0 +1,94 @@
+using System;
+using UnityEngine.Playables;
+
+namespace UnityEngine.Timeline
+{
+    /// <summary>
+    /// Track that can be used to control the active state of a GameObject.
+    /// </summary>
+    [Serializable]
+    [TrackClipType(typeof(ActivationPlayableAsset))]
+    [TrackBindingType(typeof(GameObject))]
+    [ExcludeFromPreset]
+    [TimelineHelpURL(typeof(ActivationTrack))]
+    public class ActivationTrack : TrackAsset
+    {
+        [SerializeField]
+        PostPlaybackState m_PostPlaybackState = PostPlaybackState.LeaveAsIs;
+        ActivationMixerPlayable m_ActivationMixer;
+
+        /// <summary>
+        /// Specify what state to leave the GameObject in after the Timeline has finished playing.
+        /// </summary>
+        public enum PostPlaybackState
+        {
+            /// <summary>
+            /// Set the GameObject to active.
+            /// </summary>
+            Active,
+
+            /// <summary>
+            /// Set the GameObject to Inactive.
+            /// </summary>
+            Inactive,
+
+            /// <summary>
+            /// Revert the GameObject to the state in was in before the Timeline was playing.
+            /// </summary>
+            Revert,
+
+            /// <summary>
+            /// Leave the GameObject in the state it was when the Timeline was stopped.
+            /// </summary>
+            LeaveAsIs
+        }
+
+        internal override bool CanCompileClips()
+        {
+            return !hasClips || base.CanCompileClips();
+        }
+
+        /// <summary>
+        /// Specifies what state to leave the GameObject in after the Timeline has finished playing.
+        /// </summary>
+        public PostPlaybackState postPlaybackState
+        {
+            get { return m_PostPlaybackState; }
+            set { m_PostPlaybackState = value; UpdateTrackMode(); }
+        }
+
+        /// <inheritdoc/>
+        public override Playable CreateTrackMixer(PlayableGraph graph, GameObject go, int inputCount)
+        {
+            var mixer = ActivationMixerPlayable.Create(graph, inputCount);
+            m_ActivationMixer = mixer.GetBehaviour();
+
+            UpdateTrackMode();
+
+            return mixer;
+        }
+
+        internal void UpdateTrackMode()
+        {
+            if (m_ActivationMixer != null)
+                m_ActivationMixer.postPlaybackState = m_PostPlaybackState;
+        }
+
+        /// <inheritdoc/>
+        public override void GatherProperties(PlayableDirector director, IPropertyCollector driver)
+        {
+            var gameObject = GetGameObjectBinding(director);
+            if (gameObject != null)
+            {
+                driver.AddFromName(gameObject, "m_IsActive");
+            }
+        }
+
+        /// <inheritdoc/>
+        protected override void OnCreateClip(TimelineClip clip)
+        {
+            clip.displayName = "Active";
+            base.OnCreateClip(clip);
+        }
+    }
+}