Initial Commit

Library/PackageCache/com.unity.timeline@1.5.4/Runtime/Control/ControlTrack.cs

@@ -0,0 +1,70 @@
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Playables;
+
+namespace UnityEngine.Timeline
+{
+    /// <summary>
+    /// A Track whose clips control time-related elements on a GameObject.
+    /// </summary>
+    [TrackClipType(typeof(ControlPlayableAsset), false)]
+    [ExcludeFromPreset]
+    [TimelineHelpURL(typeof(ControlTrack))]
+    public class ControlTrack : TrackAsset
+    {
+#if UNITY_EDITOR
+        private static readonly HashSet<PlayableDirector> s_ProcessedDirectors = new HashSet<PlayableDirector>();
+
+        /// <inheritdoc/>
+        public override void GatherProperties(PlayableDirector director, IPropertyCollector driver)
+        {
+            if (director == null)
+                return;
+
+            // avoid recursion
+            if (s_ProcessedDirectors.Contains(director))
+                return;
+
+            s_ProcessedDirectors.Add(director);
+
+            var particlesToPreview = new HashSet<ParticleSystem>();
+            var activationToPreview = new HashSet<GameObject>();
+            var timeControlToPreview = new HashSet<MonoBehaviour>();
+            var subDirectorsToPreview = new HashSet<PlayableDirector>();
+
+            foreach (var clip in GetClips())
+            {
+                var controlPlayableAsset = clip.asset as ControlPlayableAsset;
+                if (controlPlayableAsset == null)
+                    continue;
+
+                var gameObject = controlPlayableAsset.sourceGameObject.Resolve(director);
+                if (gameObject == null)
+                    continue;
+
+                if (controlPlayableAsset.updateParticle)
+                    particlesToPreview.UnionWith(gameObject.GetComponentsInChildren<ParticleSystem>(true));
+                if (controlPlayableAsset.active)
+                    activationToPreview.Add(gameObject);
+                if (controlPlayableAsset.updateITimeControl)
+                    timeControlToPreview.UnionWith(ControlPlayableAsset.GetControlableScripts(gameObject));
+                if (controlPlayableAsset.updateDirector)
+                    subDirectorsToPreview.UnionWith(controlPlayableAsset.GetComponent<PlayableDirector>(gameObject));
+            }
+
+            ControlPlayableAsset.PreviewParticles(driver, particlesToPreview);
+            ControlPlayableAsset.PreviewActivation(driver, activationToPreview);
+            ControlPlayableAsset.PreviewTimeControl(driver, director, timeControlToPreview);
+            ControlPlayableAsset.PreviewDirectors(driver, subDirectorsToPreview);
+
+            s_ProcessedDirectors.Remove(director);
+
+            particlesToPreview.Clear();
+            activationToPreview.Clear();
+            timeControlToPreview.Clear();
+            subDirectorsToPreview.Clear();
+        }
+
+#endif
+    }
+}