1318 lines
48 KiB
C#
1318 lines
48 KiB
C#
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using System;
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using System.Collections.Generic;
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using UnityEngine.Animations;
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using UnityEngine.Playables;
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namespace UnityEngine.Timeline
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{
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/// <summary>
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/// A PlayableAsset representing a track inside a timeline.
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/// </summary>
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///
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/// <remarks>
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/// Derive from TrackAsset to implement custom timeline tracks. TrackAsset derived classes support the following attributes:
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/// <seealso cref="UnityEngine.Timeline.HideInMenuAttribute"/>
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/// <seealso cref="UnityEngine.Timeline.TrackColorAttribute"/>
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/// <seealso cref="UnityEngine.Timeline.TrackClipTypeAttribute"/>
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/// <seealso cref="UnityEngine.Timeline.TrackBindingTypeAttribute"/>
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/// <seealso cref="System.ComponentModel.DisplayNameAttribute"/>
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/// </remarks>
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///
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/// <example>
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/// <code source="../../DocCodeExamples/TrackAssetExamples.cs" region="declare-trackAssetExample" title="TrackAssetExample"/>
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/// </example>
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[Serializable]
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[IgnoreOnPlayableTrack]
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public abstract partial class TrackAsset : PlayableAsset, IPropertyPreview, ICurvesOwner
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{
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// Internal caches used to avoid memory allocation during graph construction
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private struct TransientBuildData
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{
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public List<TrackAsset> trackList;
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public List<TimelineClip> clipList;
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public List<IMarker> markerList;
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public static TransientBuildData Create()
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{
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return new TransientBuildData()
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{
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trackList = new List<TrackAsset>(20),
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clipList = new List<TimelineClip>(500),
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markerList = new List<IMarker>(100),
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};
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}
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public void Clear()
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{
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trackList.Clear();
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clipList.Clear();
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markerList.Clear();
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}
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}
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private static TransientBuildData s_BuildData = TransientBuildData.Create();
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internal const string kDefaultCurvesName = "Track Parameters";
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internal static event Action<TimelineClip, GameObject, Playable> OnClipPlayableCreate;
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internal static event Action<TrackAsset, GameObject, Playable> OnTrackAnimationPlayableCreate;
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[SerializeField, HideInInspector] bool m_Locked;
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[SerializeField, HideInInspector] bool m_Muted;
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[SerializeField, HideInInspector] string m_CustomPlayableFullTypename = string.Empty;
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[SerializeField, HideInInspector] AnimationClip m_Curves;
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[SerializeField, HideInInspector] PlayableAsset m_Parent;
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[SerializeField, HideInInspector] List<ScriptableObject> m_Children;
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[NonSerialized] int m_ItemsHash;
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[NonSerialized] TimelineClip[] m_ClipsCache;
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DiscreteTime m_Start;
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DiscreteTime m_End;
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bool m_CacheSorted;
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bool? m_SupportsNotifications;
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static TrackAsset[] s_EmptyCache = new TrackAsset[0];
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IEnumerable<TrackAsset> m_ChildTrackCache;
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static Dictionary<Type, TrackBindingTypeAttribute> s_TrackBindingTypeAttributeCache = new Dictionary<Type, TrackBindingTypeAttribute>();
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[SerializeField, HideInInspector] protected internal List<TimelineClip> m_Clips = new List<TimelineClip>();
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[SerializeField, HideInInspector] MarkerList m_Markers = new MarkerList(0);
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#if UNITY_EDITOR
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internal int DirtyIndex { get; private set; }
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internal void MarkDirty()
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{
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DirtyIndex++;
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foreach (var clip in GetClips())
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{
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if (clip != null)
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clip.MarkDirty();
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}
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}
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#endif
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/// <summary>
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/// The start time, in seconds, of this track
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/// </summary>
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public double start
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{
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get
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{
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UpdateDuration();
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return (double)m_Start;
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}
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}
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/// <summary>
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/// The end time, in seconds, of this track
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/// </summary>
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public double end
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{
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get
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{
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UpdateDuration();
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return (double)m_End;
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}
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}
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/// <summary>
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/// The length, in seconds, of this track
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/// </summary>
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public sealed override double duration
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{
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get
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{
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UpdateDuration();
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return (double)(m_End - m_Start);
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}
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}
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/// <summary>
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/// Whether the track is muted or not.
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/// </summary>
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/// <remarks>
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/// A muted track is excluded from the generated PlayableGraph
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/// </remarks>
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public bool muted
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{
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get { return m_Muted; }
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set { m_Muted = value; }
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}
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/// <summary>
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/// The muted state of a track.
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/// </summary>
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/// <remarks>
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/// A track is also muted when one of its parent tracks are muted.
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/// </remarks>
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public bool mutedInHierarchy
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{
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get
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{
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if (muted)
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return true;
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TrackAsset p = this;
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while (p.parent as TrackAsset != null)
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{
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p = (TrackAsset)p.parent;
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if (p as GroupTrack != null)
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return p.mutedInHierarchy;
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}
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return false;
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}
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}
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/// <summary>
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/// The TimelineAsset that this track belongs to.
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/// </summary>
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public TimelineAsset timelineAsset
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{
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get
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{
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var node = this;
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while (node != null)
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{
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if (node.parent == null)
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return null;
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var seq = node.parent as TimelineAsset;
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if (seq != null)
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return seq;
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node = node.parent as TrackAsset;
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}
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return null;
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}
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}
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/// <summary>
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/// The owner of this track.
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/// </summary>
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/// <remarks>
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/// If this track is a subtrack, the parent is a TrackAsset. Otherwise the parent is a TimelineAsset.
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/// </remarks>
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public PlayableAsset parent
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{
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get { return m_Parent; }
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internal set { m_Parent = value; }
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}
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/// <summary>
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/// A list of clips owned by this track
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/// </summary>
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/// <returns>Returns an enumerable list of clips owned by the track.</returns>
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public IEnumerable<TimelineClip> GetClips()
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{
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return clips;
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}
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internal TimelineClip[] clips
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{
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get
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{
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if (m_Clips == null)
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m_Clips = new List<TimelineClip>();
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if (m_ClipsCache == null)
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{
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m_CacheSorted = false;
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m_ClipsCache = m_Clips.ToArray();
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}
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return m_ClipsCache;
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}
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}
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/// <summary>
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/// Whether this track is considered empty.
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/// </summary>
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/// <remarks>
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/// A track is considered empty when it does not contain a TimelineClip, Marker, or Curve.
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/// </remarks>
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public virtual bool isEmpty
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{
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get { return !hasClips && !hasCurves && GetMarkerCount() == 0; }
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}
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/// <summary>
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/// Whether this track contains any TimelineClip.
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/// </summary>
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public bool hasClips
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{
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get { return m_Clips != null && m_Clips.Count != 0; }
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}
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/// <summary>
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/// Whether this track contains animated properties for the attached PlayableAsset.
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/// </summary>
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/// <remarks>
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/// This property is false if the curves property is null or if it contains no information.
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/// </remarks>
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public bool hasCurves
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{
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get { return m_Curves != null && !m_Curves.empty; }
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}
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/// <summary>
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/// Returns whether this track is a subtrack
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/// </summary>
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public bool isSubTrack
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{
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get
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{
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var owner = parent as TrackAsset;
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return owner != null && owner.GetType() == GetType();
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}
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}
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/// <summary>
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/// Returns a description of the PlayableOutputs that will be created by this track.
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/// </summary>
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public override IEnumerable<PlayableBinding> outputs
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{
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get
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{
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TrackBindingTypeAttribute attribute;
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if (!s_TrackBindingTypeAttributeCache.TryGetValue(GetType(), out attribute))
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{
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attribute = (TrackBindingTypeAttribute)Attribute.GetCustomAttribute(GetType(), typeof(TrackBindingTypeAttribute));
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s_TrackBindingTypeAttributeCache.Add(GetType(), attribute);
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}
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var trackBindingType = attribute != null ? attribute.type : null;
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yield return ScriptPlayableBinding.Create(name, this, trackBindingType);
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}
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}
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/// <summary>
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/// The list of subtracks or child tracks attached to this track.
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/// </summary>
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/// <returns>Returns an enumerable list of child tracks owned directly by this track.</returns>
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/// <remarks>
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/// In the case of GroupTracks, this returns all tracks contained in the group. This will return the all subtracks or override tracks, if supported by the track.
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/// </remarks>
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public IEnumerable<TrackAsset> GetChildTracks()
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{
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UpdateChildTrackCache();
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return m_ChildTrackCache;
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}
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internal string customPlayableTypename
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{
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get { return m_CustomPlayableFullTypename; }
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set { m_CustomPlayableFullTypename = value; }
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}
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/// <summary>
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/// An animation clip storing animated properties of the attached PlayableAsset
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/// </summary>
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public AnimationClip curves
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{
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get { return m_Curves; }
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internal set { m_Curves = value; }
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}
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string ICurvesOwner.defaultCurvesName
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{
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get { return kDefaultCurvesName; }
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}
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Object ICurvesOwner.asset
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{
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get { return this; }
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}
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Object ICurvesOwner.assetOwner
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{
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get { return timelineAsset; }
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}
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TrackAsset ICurvesOwner.targetTrack
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{
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get { return this; }
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}
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// for UI where we need to detect 'null' objects
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internal List<ScriptableObject> subTracksObjects
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{
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get { return m_Children; }
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}
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/// <summary>
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/// The local locked state of the track.
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/// </summary>
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/// <remarks>
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/// Note that locking a track only affects operations in the Timeline Editor. It does not prevent other API calls from changing a track or it's clips.
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///
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/// This returns or sets the local locked state of the track. A track may still be locked for editing because one or more of it's parent tracks in the hierarchy is locked. Use lockedInHierarchy to test if a track is locked because of it's own locked state or because of a parent tracks locked state.
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/// </remarks>
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public bool locked
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{
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get { return m_Locked; }
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set { m_Locked = value; }
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}
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/// <summary>
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/// The locked state of a track. (RO)
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/// </summary>
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/// <remarks>
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/// Note that locking a track only affects operations in the Timeline Editor. It does not prevent other API calls from changing a track or it's clips.
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///
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/// This indicates whether a track is locked in the Timeline Editor because either it's locked property is enabled or a parent track is locked.
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/// </remarks>
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public bool lockedInHierarchy
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{
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get
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{
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if (locked)
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return true;
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||
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TrackAsset p = this;
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while (p.parent as TrackAsset != null)
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{
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p = (TrackAsset)p.parent;
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if (p as GroupTrack != null)
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return p.lockedInHierarchy;
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}
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return false;
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}
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}
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/// <summary>
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||
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/// Indicates if a track accepts markers that implement <see cref="UnityEngine.Playables.INotification"/>.
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||
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/// </summary>
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/// <remarks>
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||
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/// Only tracks with a bound object of type <see cref="UnityEngine.GameObject"/> or <see cref="UnityEngine.Component"/> can accept notifications.
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||
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/// </remarks>
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||
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public bool supportsNotifications
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||
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{
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||
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get
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||
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{
|
||
|
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if (!m_SupportsNotifications.HasValue)
|
||
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{
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||
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m_SupportsNotifications = NotificationUtilities.TrackTypeSupportsNotifications(GetType());
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||
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}
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||
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return m_SupportsNotifications.Value;
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}
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||
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}
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||
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||
|
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void __internalAwake() //do not use OnEnable, since users will want it to initialize their class
|
||
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{
|
||
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if (m_Clips == null)
|
||
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m_Clips = new List<TimelineClip>();
|
||
|
|
|
||
|
|
m_ChildTrackCache = null;
|
||
|
|
if (m_Children == null)
|
||
|
|
m_Children = new List<ScriptableObject>();
|
||
|
|
#if UNITY_EDITOR
|
||
|
|
// validate the array. DON'T remove Unity null objects, just actual null objects
|
||
|
|
for (int i = m_Children.Count - 1; i >= 0; i--)
|
||
|
|
{
|
||
|
|
object o = m_Children[i];
|
||
|
|
if (o == null)
|
||
|
|
{
|
||
|
|
Debug.LogWarning("Empty child track found while loading timeline. It will be removed.");
|
||
|
|
m_Children.RemoveAt(i);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates an AnimationClip to store animated properties for the attached PlayableAsset.
|
||
|
|
/// </summary>
|
||
|
|
/// <remarks>
|
||
|
|
/// If curves already exists for this track, this method produces no result regardless of
|
||
|
|
/// the value specified for curvesClipName.
|
||
|
|
/// </remarks>
|
||
|
|
/// <remarks>
|
||
|
|
/// When used from the editor, this method attempts to save the created curves clip to the TimelineAsset.
|
||
|
|
/// The TimelineAsset must already exist in the AssetDatabase to save the curves clip. If the TimelineAsset
|
||
|
|
/// does not exist, the curves clip is still created but it is not saved.
|
||
|
|
/// </remarks>
|
||
|
|
/// <param name="curvesClipName">
|
||
|
|
/// The name of the AnimationClip to create.
|
||
|
|
/// This method does not ensure unique names. If you want a unique clip name, you must provide one.
|
||
|
|
/// See ObjectNames.GetUniqueName for information on a method that creates unique names.
|
||
|
|
/// </param>
|
||
|
|
public void CreateCurves(string curvesClipName)
|
||
|
|
{
|
||
|
|
if (m_Curves != null)
|
||
|
|
return;
|
||
|
|
|
||
|
|
m_Curves = TimelineCreateUtilities.CreateAnimationClipForTrack(string.IsNullOrEmpty(curvesClipName) ? kDefaultCurvesName : curvesClipName, this, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates a mixer used to blend playables generated by clips on the track.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="graph">The graph to inject playables into</param>
|
||
|
|
/// <param name="go">The GameObject that requested the graph.</param>
|
||
|
|
/// <param name="inputCount">The number of playables from clips that will be inputs to the returned mixer</param>
|
||
|
|
/// <returns>A handle to the [[Playable]] representing the mixer.</returns>
|
||
|
|
/// <remarks>
|
||
|
|
/// Override this method to provide a custom playable for mixing clips on a graph.
|
||
|
|
/// </remarks>
|
||
|
|
public virtual Playable CreateTrackMixer(PlayableGraph graph, GameObject go, int inputCount)
|
||
|
|
{
|
||
|
|
return Playable.Create(graph, inputCount);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Overrides PlayableAsset.CreatePlayable(). Not used in Timeline.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="graph"><inheritdoc/></param>
|
||
|
|
/// <param name="go"><inheritdoc/></param>
|
||
|
|
/// <returns><inheritDoc/></returns>
|
||
|
|
public sealed override Playable CreatePlayable(PlayableGraph graph, GameObject go)
|
||
|
|
{
|
||
|
|
return Playable.Null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates a TimelineClip on this track.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>Returns a new TimelineClip that is attached to the track.</returns>
|
||
|
|
/// <remarks>
|
||
|
|
/// The type of the playable asset attached to the clip is determined by TrackClip attributes that decorate the TrackAsset derived class
|
||
|
|
/// </remarks>
|
||
|
|
public TimelineClip CreateDefaultClip()
|
||
|
|
{
|
||
|
|
var trackClipTypeAttributes = GetType().GetCustomAttributes(typeof(TrackClipTypeAttribute), true);
|
||
|
|
Type playableAssetType = null;
|
||
|
|
foreach (var trackClipTypeAttribute in trackClipTypeAttributes)
|
||
|
|
{
|
||
|
|
var attribute = trackClipTypeAttribute as TrackClipTypeAttribute;
|
||
|
|
if (attribute != null && typeof(IPlayableAsset).IsAssignableFrom(attribute.inspectedType) && typeof(ScriptableObject).IsAssignableFrom(attribute.inspectedType))
|
||
|
|
{
|
||
|
|
playableAssetType = attribute.inspectedType;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (playableAssetType == null)
|
||
|
|
{
|
||
|
|
Debug.LogWarning("Cannot create a default clip for type " + GetType());
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
return CreateAndAddNewClipOfType(playableAssetType);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates a clip on the track with a playable asset attached, whose derived type is specified by T
|
||
|
|
/// </summary>
|
||
|
|
/// <typeparam name="T">A PlayableAsset derived type</typeparam>
|
||
|
|
/// <returns>Returns a TimelineClip whose asset is of type T</returns>
|
||
|
|
/// <remarks>
|
||
|
|
/// Throws <exception cref="System.InvalidOperationException"/> if <typeparamref name="T"/> is not supported by the track.
|
||
|
|
/// Supported types are determined by TrackClip attributes that decorate the TrackAsset derived class
|
||
|
|
/// </remarks>
|
||
|
|
public TimelineClip CreateClip<T>() where T : ScriptableObject, IPlayableAsset
|
||
|
|
{
|
||
|
|
return CreateClip(typeof(T));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Delete a clip from this track.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="clip">The clip to delete.</param>
|
||
|
|
/// <returns>Returns true if the removal was successful</returns>
|
||
|
|
/// <remarks>
|
||
|
|
/// This method will delete a clip and any assets owned by the clip.
|
||
|
|
/// </remarks>
|
||
|
|
/// <exception>
|
||
|
|
/// Throws <exception cref="System.InvalidOperationException"/> if <paramref name="clip"/> is not a child of the TrackAsset.
|
||
|
|
/// </exception>
|
||
|
|
public bool DeleteClip(TimelineClip clip)
|
||
|
|
{
|
||
|
|
if (!m_Clips.Contains(clip))
|
||
|
|
throw new InvalidOperationException("Cannot delete clip since it is not a child of the TrackAsset.");
|
||
|
|
|
||
|
|
return timelineAsset != null && timelineAsset.DeleteClip(clip);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates a marker of the requested type, at a specific time, and adds the marker to the current asset.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="type">The type of marker.</param>
|
||
|
|
/// <param name="time">The time where the marker is created.</param>
|
||
|
|
/// <returns>Returns the instance of the created marker.</returns>
|
||
|
|
/// <remarks>
|
||
|
|
/// All markers that implement IMarker and inherit from <see cref="UnityEngine.ScriptableObject"/> are supported.
|
||
|
|
/// Markers that implement the INotification interface cannot be added to tracks that do not support notifications.
|
||
|
|
/// CreateMarker will throw <exception cref="System.InvalidOperationException"/> with tracks that do not support notifications if <paramref name="type"/> implements the INotification interface.
|
||
|
|
/// </remarks>
|
||
|
|
/// <seealso cref="UnityEngine.Timeline.Marker"/>
|
||
|
|
/// <seealso cref="UnityEngine.Timeline.TrackAsset.supportsNotifications"/>
|
||
|
|
public IMarker CreateMarker(Type type, double time)
|
||
|
|
{
|
||
|
|
return m_Markers.CreateMarker(type, time, this);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates a marker of the requested type, at a specific time, and adds the marker to the current asset.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="time">The time where the marker is created.</param>
|
||
|
|
/// <typeparam name="T">The type of marker to create.</typeparam>
|
||
|
|
/// <returns>Returns the instance of the created marker.</returns>
|
||
|
|
/// <remarks>
|
||
|
|
/// All markers that implement IMarker and inherit from <see cref="UnityEngine.ScriptableObject"/> are supported.
|
||
|
|
/// CreateMarker will throw <exception cref="System.InvalidOperationException"/> with tracks that do not support notifications if <typeparamref name="T"/> implements the INotification interface.
|
||
|
|
/// </remarks>
|
||
|
|
/// <seealso cref="UnityEngine.Timeline.Marker"/>
|
||
|
|
/// <seealso cref="UnityEngine.Timeline.TrackAsset.supportsNotifications"/>
|
||
|
|
public T CreateMarker<T>(double time) where T : ScriptableObject, IMarker
|
||
|
|
{
|
||
|
|
return (T)CreateMarker(typeof(T), time);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Removes a marker from the current asset.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="marker">The marker instance to be removed.</param>
|
||
|
|
/// <returns>Returns true if the marker instance was successfully removed. Returns false otherwise.</returns>
|
||
|
|
public bool DeleteMarker(IMarker marker)
|
||
|
|
{
|
||
|
|
return m_Markers.Remove(marker);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns an enumerable list of markers on the current asset.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>The list of markers on the asset.
|
||
|
|
/// </returns>
|
||
|
|
public IEnumerable<IMarker> GetMarkers()
|
||
|
|
{
|
||
|
|
return m_Markers.GetMarkers();
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns the number of markers on the current asset.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>The number of markers.</returns>
|
||
|
|
public int GetMarkerCount()
|
||
|
|
{
|
||
|
|
return m_Markers.Count;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns the marker at a given position, on the current asset.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="idx">The index of the marker to be returned.</param>
|
||
|
|
/// <returns>The marker.</returns>
|
||
|
|
/// <remarks>The ordering of the markers is not guaranteed.
|
||
|
|
/// </remarks>
|
||
|
|
public IMarker GetMarker(int idx)
|
||
|
|
{
|
||
|
|
return m_Markers[idx];
|
||
|
|
}
|
||
|
|
|
||
|
|
internal TimelineClip CreateClip(System.Type requestedType)
|
||
|
|
{
|
||
|
|
if (ValidateClipType(requestedType))
|
||
|
|
return CreateAndAddNewClipOfType(requestedType);
|
||
|
|
|
||
|
|
throw new InvalidOperationException("Clips of type " + requestedType + " are not permitted on tracks of type " + GetType());
|
||
|
|
}
|
||
|
|
|
||
|
|
internal TimelineClip CreateAndAddNewClipOfType(Type requestedType)
|
||
|
|
{
|
||
|
|
var newClip = CreateClipOfType(requestedType);
|
||
|
|
AddClip(newClip);
|
||
|
|
return newClip;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal TimelineClip CreateClipOfType(Type requestedType)
|
||
|
|
{
|
||
|
|
if (!ValidateClipType(requestedType))
|
||
|
|
throw new System.InvalidOperationException("Clips of type " + requestedType + " are not permitted on tracks of type " + GetType());
|
||
|
|
|
||
|
|
var playableAsset = CreateInstance(requestedType);
|
||
|
|
if (playableAsset == null)
|
||
|
|
{
|
||
|
|
throw new System.InvalidOperationException("Could not create an instance of the ScriptableObject type " + requestedType.Name);
|
||
|
|
}
|
||
|
|
playableAsset.name = requestedType.Name;
|
||
|
|
TimelineCreateUtilities.SaveAssetIntoObject(playableAsset, this);
|
||
|
|
TimelineUndo.RegisterCreatedObjectUndo(playableAsset, "Create Clip");
|
||
|
|
|
||
|
|
return CreateClipFromAsset(playableAsset);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates a timeline clip from an existing playable asset.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="asset"></param>
|
||
|
|
/// <returns></returns>
|
||
|
|
internal TimelineClip CreateClipFromPlayableAsset(IPlayableAsset asset)
|
||
|
|
{
|
||
|
|
if (asset == null)
|
||
|
|
throw new ArgumentNullException("asset");
|
||
|
|
|
||
|
|
if ((asset as ScriptableObject) == null)
|
||
|
|
throw new System.ArgumentException("CreateClipFromPlayableAsset " + " only supports ScriptableObject-derived Types");
|
||
|
|
|
||
|
|
if (!ValidateClipType(asset.GetType()))
|
||
|
|
throw new System.InvalidOperationException("Clips of type " + asset.GetType() + " are not permitted on tracks of type " + GetType());
|
||
|
|
|
||
|
|
return CreateClipFromAsset(asset as ScriptableObject);
|
||
|
|
}
|
||
|
|
|
||
|
|
private TimelineClip CreateClipFromAsset(ScriptableObject playableAsset)
|
||
|
|
{
|
||
|
|
TimelineUndo.PushUndo(this, "Create Clip");
|
||
|
|
|
||
|
|
var newClip = CreateNewClipContainerInternal();
|
||
|
|
newClip.displayName = playableAsset.name;
|
||
|
|
newClip.asset = playableAsset;
|
||
|
|
|
||
|
|
IPlayableAsset iPlayableAsset = playableAsset as IPlayableAsset;
|
||
|
|
if (iPlayableAsset != null)
|
||
|
|
{
|
||
|
|
var candidateDuration = iPlayableAsset.duration;
|
||
|
|
|
||
|
|
if (!double.IsInfinity(candidateDuration) && candidateDuration > 0)
|
||
|
|
newClip.duration = Math.Min(Math.Max(candidateDuration, TimelineClip.kMinDuration), TimelineClip.kMaxTimeValue);
|
||
|
|
}
|
||
|
|
|
||
|
|
try
|
||
|
|
{
|
||
|
|
OnCreateClip(newClip);
|
||
|
|
}
|
||
|
|
catch (Exception e)
|
||
|
|
{
|
||
|
|
Debug.LogError(e.Message, playableAsset);
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
return newClip;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal IEnumerable<ScriptableObject> GetMarkersRaw()
|
||
|
|
{
|
||
|
|
return m_Markers.GetRawMarkerList();
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void ClearMarkers()
|
||
|
|
{
|
||
|
|
m_Markers.Clear();
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void AddMarker(ScriptableObject e)
|
||
|
|
{
|
||
|
|
m_Markers.Add(e);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal bool DeleteMarkerRaw(ScriptableObject marker)
|
||
|
|
{
|
||
|
|
return m_Markers.Remove(marker, timelineAsset, this);
|
||
|
|
}
|
||
|
|
|
||
|
|
int GetTimeRangeHash()
|
||
|
|
{
|
||
|
|
double start = double.MaxValue, end = double.MinValue;
|
||
|
|
foreach (var marker in GetMarkers())
|
||
|
|
{
|
||
|
|
if (!(marker is INotification))
|
||
|
|
{
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (marker.time < start)
|
||
|
|
start = marker.time;
|
||
|
|
if (marker.time > end)
|
||
|
|
end = marker.time;
|
||
|
|
}
|
||
|
|
|
||
|
|
return start.GetHashCode().CombineHash(end.GetHashCode());
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void AddClip(TimelineClip newClip)
|
||
|
|
{
|
||
|
|
if (!m_Clips.Contains(newClip))
|
||
|
|
{
|
||
|
|
m_Clips.Add(newClip);
|
||
|
|
m_ClipsCache = null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Playable CreateNotificationsPlayable(PlayableGraph graph, Playable mixerPlayable, GameObject go, Playable timelinePlayable)
|
||
|
|
{
|
||
|
|
s_BuildData.markerList.Clear();
|
||
|
|
GatherNotifications(s_BuildData.markerList);
|
||
|
|
var notificationPlayable = NotificationUtilities.CreateNotificationsPlayable(graph, s_BuildData.markerList, go);
|
||
|
|
if (notificationPlayable.IsValid())
|
||
|
|
{
|
||
|
|
notificationPlayable.GetBehaviour().timeSource = timelinePlayable;
|
||
|
|
if (mixerPlayable.IsValid())
|
||
|
|
{
|
||
|
|
notificationPlayable.SetInputCount(1);
|
||
|
|
graph.Connect(mixerPlayable, 0, notificationPlayable, 0);
|
||
|
|
notificationPlayable.SetInputWeight(mixerPlayable, 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return notificationPlayable;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal Playable CreatePlayableGraph(PlayableGraph graph, GameObject go, IntervalTree<RuntimeElement> tree, Playable timelinePlayable)
|
||
|
|
{
|
||
|
|
UpdateDuration();
|
||
|
|
var mixerPlayable = Playable.Null;
|
||
|
|
if (CanCreateMixerRecursive())
|
||
|
|
mixerPlayable = CreateMixerPlayableGraph(graph, go, tree);
|
||
|
|
|
||
|
|
Playable notificationsPlayable = CreateNotificationsPlayable(graph, mixerPlayable, go, timelinePlayable);
|
||
|
|
|
||
|
|
// clear the temporary build data to avoid holding references
|
||
|
|
// case 1253974
|
||
|
|
s_BuildData.Clear();
|
||
|
|
if (!notificationsPlayable.IsValid() && !mixerPlayable.IsValid())
|
||
|
|
{
|
||
|
|
Debug.LogErrorFormat("Track {0} of type {1} has no notifications and returns an invalid mixer Playable", name,
|
||
|
|
GetType().FullName);
|
||
|
|
|
||
|
|
return Playable.Create(graph);
|
||
|
|
}
|
||
|
|
|
||
|
|
return notificationsPlayable.IsValid() ? notificationsPlayable : mixerPlayable;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal virtual Playable CompileClips(PlayableGraph graph, GameObject go, IList<TimelineClip> timelineClips, IntervalTree<RuntimeElement> tree)
|
||
|
|
{
|
||
|
|
var blend = CreateTrackMixer(graph, go, timelineClips.Count);
|
||
|
|
for (var c = 0; c < timelineClips.Count; c++)
|
||
|
|
{
|
||
|
|
var source = CreatePlayable(graph, go, timelineClips[c]);
|
||
|
|
if (source.IsValid())
|
||
|
|
{
|
||
|
|
source.SetDuration(timelineClips[c].duration);
|
||
|
|
var clip = new RuntimeClip(timelineClips[c], source, blend);
|
||
|
|
tree.Add(clip);
|
||
|
|
graph.Connect(source, 0, blend, c);
|
||
|
|
blend.SetInputWeight(c, 0.0f);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ConfigureTrackAnimation(tree, go, blend);
|
||
|
|
return blend;
|
||
|
|
}
|
||
|
|
|
||
|
|
void GatherCompilableTracks(IList<TrackAsset> tracks)
|
||
|
|
{
|
||
|
|
if (!muted && CanCreateTrackMixer())
|
||
|
|
tracks.Add(this);
|
||
|
|
|
||
|
|
foreach (var c in GetChildTracks())
|
||
|
|
{
|
||
|
|
if (c != null)
|
||
|
|
c.GatherCompilableTracks(tracks);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void GatherNotifications(List<IMarker> markers)
|
||
|
|
{
|
||
|
|
if (!muted && CanCompileNotifications())
|
||
|
|
markers.AddRange(GetMarkers());
|
||
|
|
foreach (var c in GetChildTracks())
|
||
|
|
{
|
||
|
|
if (c != null)
|
||
|
|
c.GatherNotifications(markers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal virtual Playable CreateMixerPlayableGraph(PlayableGraph graph, GameObject go, IntervalTree<RuntimeElement> tree)
|
||
|
|
{
|
||
|
|
if (tree == null)
|
||
|
|
throw new ArgumentException("IntervalTree argument cannot be null", "tree");
|
||
|
|
|
||
|
|
if (go == null)
|
||
|
|
throw new ArgumentException("GameObject argument cannot be null", "go");
|
||
|
|
|
||
|
|
s_BuildData.Clear();
|
||
|
|
GatherCompilableTracks(s_BuildData.trackList);
|
||
|
|
|
||
|
|
// nothing to compile
|
||
|
|
if (s_BuildData.trackList.Count == 0)
|
||
|
|
return Playable.Null;
|
||
|
|
|
||
|
|
// check if layers are supported
|
||
|
|
Playable layerMixer = Playable.Null;
|
||
|
|
ILayerable layerable = this as ILayerable;
|
||
|
|
if (layerable != null)
|
||
|
|
layerMixer = layerable.CreateLayerMixer(graph, go, s_BuildData.trackList.Count);
|
||
|
|
|
||
|
|
if (layerMixer.IsValid())
|
||
|
|
{
|
||
|
|
for (int i = 0; i < s_BuildData.trackList.Count; i++)
|
||
|
|
{
|
||
|
|
var mixer = s_BuildData.trackList[i].CompileClips(graph, go, s_BuildData.trackList[i].clips, tree);
|
||
|
|
if (mixer.IsValid())
|
||
|
|
{
|
||
|
|
graph.Connect(mixer, 0, layerMixer, i);
|
||
|
|
layerMixer.SetInputWeight(i, 1.0f);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return layerMixer;
|
||
|
|
}
|
||
|
|
|
||
|
|
// one track compiles. Add track mixer and clips
|
||
|
|
if (s_BuildData.trackList.Count == 1)
|
||
|
|
return s_BuildData.trackList[0].CompileClips(graph, go, s_BuildData.trackList[0].clips, tree);
|
||
|
|
|
||
|
|
// no layer mixer provided. merge down all clips.
|
||
|
|
for (int i = 0; i < s_BuildData.trackList.Count; i++)
|
||
|
|
s_BuildData.clipList.AddRange(s_BuildData.trackList[i].clips);
|
||
|
|
|
||
|
|
#if UNITY_EDITOR
|
||
|
|
bool applyWarning = false;
|
||
|
|
for (int i = 0; i < s_BuildData.trackList.Count; i++)
|
||
|
|
applyWarning |= i > 0 && s_BuildData.trackList[i].hasCurves;
|
||
|
|
|
||
|
|
if (applyWarning)
|
||
|
|
Debug.LogWarning("A layered track contains animated fields, but no layer mixer has been provided. Animated fields on layers will be ignored. Override CreateLayerMixer in " + s_BuildData.trackList[0].GetType().Name + " and return a valid playable to support animated fields on layered tracks.");
|
||
|
|
#endif
|
||
|
|
// compile all the clips into a single mixer
|
||
|
|
return CompileClips(graph, go, s_BuildData.clipList, tree);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void ConfigureTrackAnimation(IntervalTree<RuntimeElement> tree, GameObject go, Playable blend)
|
||
|
|
{
|
||
|
|
if (!hasCurves)
|
||
|
|
return;
|
||
|
|
|
||
|
|
blend.SetAnimatedProperties(m_Curves);
|
||
|
|
tree.Add(new InfiniteRuntimeClip(blend));
|
||
|
|
|
||
|
|
if (OnTrackAnimationPlayableCreate != null)
|
||
|
|
OnTrackAnimationPlayableCreate.Invoke(this, go, blend);
|
||
|
|
}
|
||
|
|
|
||
|
|
// sorts clips by start time
|
||
|
|
internal void SortClips()
|
||
|
|
{
|
||
|
|
var clipsAsArray = clips; // will alloc
|
||
|
|
if (!m_CacheSorted)
|
||
|
|
{
|
||
|
|
Array.Sort(clips, (clip1, clip2) => clip1.start.CompareTo(clip2.start));
|
||
|
|
m_CacheSorted = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// clears the clips after a clone
|
||
|
|
internal void ClearClipsInternal()
|
||
|
|
{
|
||
|
|
m_Clips = new List<TimelineClip>();
|
||
|
|
m_ClipsCache = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void ClearSubTracksInternal()
|
||
|
|
{
|
||
|
|
m_Children = new List<ScriptableObject>();
|
||
|
|
Invalidate();
|
||
|
|
}
|
||
|
|
|
||
|
|
// called by an owned clip when it moves
|
||
|
|
internal void OnClipMove()
|
||
|
|
{
|
||
|
|
m_CacheSorted = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal TimelineClip CreateNewClipContainerInternal()
|
||
|
|
{
|
||
|
|
var clipContainer = new TimelineClip(this);
|
||
|
|
clipContainer.asset = null;
|
||
|
|
|
||
|
|
// position clip at end of sequence
|
||
|
|
var newClipStart = 0.0;
|
||
|
|
for (var a = 0; a < m_Clips.Count - 1; a++)
|
||
|
|
{
|
||
|
|
var clipDuration = m_Clips[a].duration;
|
||
|
|
if (double.IsInfinity(clipDuration))
|
||
|
|
clipDuration = TimelineClip.kDefaultClipDurationInSeconds;
|
||
|
|
newClipStart = Math.Max(newClipStart, m_Clips[a].start + clipDuration);
|
||
|
|
}
|
||
|
|
|
||
|
|
clipContainer.mixInCurve = AnimationCurve.EaseInOut(0, 0, 1, 1);
|
||
|
|
clipContainer.mixOutCurve = AnimationCurve.EaseInOut(0, 1, 1, 0);
|
||
|
|
clipContainer.start = newClipStart;
|
||
|
|
clipContainer.duration = TimelineClip.kDefaultClipDurationInSeconds;
|
||
|
|
clipContainer.displayName = "untitled";
|
||
|
|
return clipContainer;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void AddChild(TrackAsset child)
|
||
|
|
{
|
||
|
|
if (child == null)
|
||
|
|
return;
|
||
|
|
|
||
|
|
m_Children.Add(child);
|
||
|
|
child.parent = this;
|
||
|
|
Invalidate();
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void MoveLastTrackBefore(TrackAsset asset)
|
||
|
|
{
|
||
|
|
if (m_Children == null || m_Children.Count < 2 || asset == null)
|
||
|
|
return;
|
||
|
|
|
||
|
|
var lastTrack = m_Children[m_Children.Count - 1];
|
||
|
|
if (lastTrack == asset)
|
||
|
|
return;
|
||
|
|
|
||
|
|
for (int i = 0; i < m_Children.Count - 1; i++)
|
||
|
|
{
|
||
|
|
if (m_Children[i] == asset)
|
||
|
|
{
|
||
|
|
for (int j = m_Children.Count - 1; j > i; j--)
|
||
|
|
m_Children[j] = m_Children[j - 1];
|
||
|
|
m_Children[i] = lastTrack;
|
||
|
|
Invalidate();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal bool RemoveSubTrack(TrackAsset child)
|
||
|
|
{
|
||
|
|
if (m_Children.Remove(child))
|
||
|
|
{
|
||
|
|
Invalidate();
|
||
|
|
child.parent = null;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void RemoveClip(TimelineClip clip)
|
||
|
|
{
|
||
|
|
m_Clips.Remove(clip);
|
||
|
|
m_ClipsCache = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Is this track compilable for the sequence
|
||
|
|
// calculate the time interval that this track will be evaluated in.
|
||
|
|
internal virtual void GetEvaluationTime(out double outStart, out double outDuration)
|
||
|
|
{
|
||
|
|
outStart = double.PositiveInfinity;
|
||
|
|
var outEnd = double.NegativeInfinity;
|
||
|
|
|
||
|
|
if (hasCurves)
|
||
|
|
{
|
||
|
|
outStart = 0.0;
|
||
|
|
outEnd = TimeUtility.GetAnimationClipLength(curves);
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach (var clip in clips)
|
||
|
|
{
|
||
|
|
outStart = Math.Min(clip.start, outStart);
|
||
|
|
outEnd = Math.Max(clip.end, outEnd);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (HasNotifications())
|
||
|
|
{
|
||
|
|
var notificationDuration = GetNotificationDuration();
|
||
|
|
outStart = Math.Min(notificationDuration, outStart);
|
||
|
|
outEnd = Math.Max(notificationDuration, outEnd);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (double.IsInfinity(outStart) || double.IsInfinity(outEnd))
|
||
|
|
outStart = outDuration = 0.0;
|
||
|
|
else
|
||
|
|
outDuration = outEnd - outStart;
|
||
|
|
}
|
||
|
|
|
||
|
|
// calculate the time interval that the sequence will use to determine length.
|
||
|
|
// by default this is the same as the evaluation, but subclasses can have different
|
||
|
|
// behaviour
|
||
|
|
internal virtual void GetSequenceTime(out double outStart, out double outDuration)
|
||
|
|
{
|
||
|
|
GetEvaluationTime(out outStart, out outDuration);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Called by the Timeline Editor to gather properties requiring preview.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="director">The PlayableDirector invoking the preview</param>
|
||
|
|
/// <param name="driver">PropertyCollector used to gather previewable properties</param>
|
||
|
|
public virtual void GatherProperties(PlayableDirector director, IPropertyCollector driver)
|
||
|
|
{
|
||
|
|
// only push on game objects if there is a binding. Subtracks
|
||
|
|
// will use objects on the stack
|
||
|
|
var gameObject = GetGameObjectBinding(director);
|
||
|
|
if (gameObject != null)
|
||
|
|
driver.PushActiveGameObject(gameObject);
|
||
|
|
|
||
|
|
if (hasCurves)
|
||
|
|
driver.AddObjectProperties(this, m_Curves);
|
||
|
|
|
||
|
|
foreach (var clip in clips)
|
||
|
|
{
|
||
|
|
if (clip.curves != null && clip.asset != null)
|
||
|
|
driver.AddObjectProperties(clip.asset, clip.curves);
|
||
|
|
|
||
|
|
IPropertyPreview modifier = clip.asset as IPropertyPreview;
|
||
|
|
if (modifier != null)
|
||
|
|
modifier.GatherProperties(director, driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach (var subtrack in GetChildTracks())
|
||
|
|
{
|
||
|
|
if (subtrack != null)
|
||
|
|
subtrack.GatherProperties(director, driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (gameObject != null)
|
||
|
|
driver.PopActiveGameObject();
|
||
|
|
}
|
||
|
|
|
||
|
|
internal GameObject GetGameObjectBinding(PlayableDirector director)
|
||
|
|
{
|
||
|
|
if (director == null)
|
||
|
|
return null;
|
||
|
|
|
||
|
|
var binding = director.GetGenericBinding(this);
|
||
|
|
|
||
|
|
var gameObject = binding as GameObject;
|
||
|
|
if (gameObject != null)
|
||
|
|
return gameObject;
|
||
|
|
|
||
|
|
var comp = binding as Component;
|
||
|
|
if (comp != null)
|
||
|
|
return comp.gameObject;
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal bool ValidateClipType(Type clipType)
|
||
|
|
{
|
||
|
|
var attrs = GetType().GetCustomAttributes(typeof(TrackClipTypeAttribute), true);
|
||
|
|
for (var c = 0; c < attrs.Length; ++c)
|
||
|
|
{
|
||
|
|
var attr = (TrackClipTypeAttribute)attrs[c];
|
||
|
|
if (attr.inspectedType.IsAssignableFrom(clipType))
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// special case for playable tracks, they accept all clips (in the runtime)
|
||
|
|
return typeof(PlayableTrack).IsAssignableFrom(GetType()) &&
|
||
|
|
typeof(IPlayableAsset).IsAssignableFrom(clipType) &&
|
||
|
|
typeof(ScriptableObject).IsAssignableFrom(clipType);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Called when a clip is created on a track.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="clip">The timeline clip added to this track</param>
|
||
|
|
/// <remarks>Use this method to set default values on a timeline clip, or it's PlayableAsset.</remarks>
|
||
|
|
protected virtual void OnCreateClip(TimelineClip clip) {}
|
||
|
|
|
||
|
|
void UpdateDuration()
|
||
|
|
{
|
||
|
|
// check if something changed in the clips that require a re-calculation of the evaluation times.
|
||
|
|
var itemsHash = CalculateItemsHash();
|
||
|
|
if (itemsHash == m_ItemsHash)
|
||
|
|
return;
|
||
|
|
m_ItemsHash = itemsHash;
|
||
|
|
|
||
|
|
double trackStart, trackDuration;
|
||
|
|
GetSequenceTime(out trackStart, out trackDuration);
|
||
|
|
|
||
|
|
m_Start = (DiscreteTime)trackStart;
|
||
|
|
m_End = (DiscreteTime)(trackStart + trackDuration);
|
||
|
|
|
||
|
|
// calculate the extrapolations time.
|
||
|
|
// TODO Extrapolation time should probably be extracted from the SequenceClip so only a track is aware of it.
|
||
|
|
this.CalculateExtrapolationTimes();
|
||
|
|
}
|
||
|
|
|
||
|
|
protected internal virtual int CalculateItemsHash()
|
||
|
|
{
|
||
|
|
return HashUtility.CombineHash(GetClipsHash(), GetAnimationClipHash(m_Curves), GetTimeRangeHash());
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Constructs a Playable from a TimelineClip.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="graph">PlayableGraph that will own the playable.</param>
|
||
|
|
/// <param name="gameObject">The GameObject that builds the PlayableGraph.</param>
|
||
|
|
/// <param name="clip">The TimelineClip to construct a playable for.</param>
|
||
|
|
/// <returns>A playable that will be set as an input to the Track Mixer playable, or Playable.Null if the clip does not have a valid PlayableAsset</returns>
|
||
|
|
/// <exception cref="ArgumentException">Thrown if the specified PlayableGraph is not valid.</exception>
|
||
|
|
/// <exception cref="ArgumentNullException">Thrown if the specified TimelineClip is not valid.</exception>
|
||
|
|
/// <remarks>
|
||
|
|
/// By default, this method invokes Playable.CreatePlayable, sets animated properties, and sets the speed of the created playable. Override this method to change this default implementation.
|
||
|
|
/// </remarks>
|
||
|
|
protected virtual Playable CreatePlayable(PlayableGraph graph, GameObject gameObject, TimelineClip clip)
|
||
|
|
{
|
||
|
|
if (!graph.IsValid())
|
||
|
|
throw new ArgumentException("graph must be a valid PlayableGraph");
|
||
|
|
if (clip == null)
|
||
|
|
throw new ArgumentNullException("clip");
|
||
|
|
|
||
|
|
var asset = clip.asset as IPlayableAsset;
|
||
|
|
if (asset != null)
|
||
|
|
{
|
||
|
|
var handle = asset.CreatePlayable(graph, gameObject);
|
||
|
|
if (handle.IsValid())
|
||
|
|
{
|
||
|
|
handle.SetAnimatedProperties(clip.curves);
|
||
|
|
handle.SetSpeed(clip.timeScale);
|
||
|
|
if (OnClipPlayableCreate != null)
|
||
|
|
OnClipPlayableCreate(clip, gameObject, handle);
|
||
|
|
}
|
||
|
|
return handle;
|
||
|
|
}
|
||
|
|
return Playable.Null;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal void Invalidate()
|
||
|
|
{
|
||
|
|
m_ChildTrackCache = null;
|
||
|
|
var timeline = timelineAsset;
|
||
|
|
if (timeline != null)
|
||
|
|
{
|
||
|
|
timeline.Invalidate();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal double GetNotificationDuration()
|
||
|
|
{
|
||
|
|
if (!supportsNotifications)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
var maxTime = 0.0;
|
||
|
|
foreach (var marker in GetMarkers())
|
||
|
|
{
|
||
|
|
if (!(marker is INotification))
|
||
|
|
{
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
maxTime = Math.Max(maxTime, marker.time);
|
||
|
|
}
|
||
|
|
|
||
|
|
return maxTime;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal virtual bool CanCompileClips()
|
||
|
|
{
|
||
|
|
return hasClips || hasCurves;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Whether the track can create a mixer for its own contents.
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>Returns true if the track's mixer should be included in the playable graph.</returns>
|
||
|
|
/// <remarks>A return value of true does not guarantee that the mixer will be included in the playable graph. GroupTracks and muted tracks are never included in the graph</remarks>
|
||
|
|
/// <remarks>A return value of false does not guarantee that the mixer will not be included in the playable graph. If a child track returns true for CanCreateTrackMixer, the parent track will generate the mixer but its own playables will not be included.</remarks>
|
||
|
|
/// <remarks>Override this method to change the conditions for a track to be included in the playable graph.</remarks>
|
||
|
|
public virtual bool CanCreateTrackMixer()
|
||
|
|
{
|
||
|
|
return CanCompileClips();
|
||
|
|
}
|
||
|
|
|
||
|
|
internal bool IsCompilable()
|
||
|
|
{
|
||
|
|
bool isContainer = typeof(GroupTrack).IsAssignableFrom(GetType());
|
||
|
|
|
||
|
|
if (isContainer)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
var ret = !mutedInHierarchy && (CanCreateTrackMixer() || CanCompileNotifications());
|
||
|
|
if (!ret)
|
||
|
|
{
|
||
|
|
foreach (var t in GetChildTracks())
|
||
|
|
{
|
||
|
|
if (t.IsCompilable())
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void UpdateChildTrackCache()
|
||
|
|
{
|
||
|
|
if (m_ChildTrackCache == null)
|
||
|
|
{
|
||
|
|
if (m_Children == null || m_Children.Count == 0)
|
||
|
|
m_ChildTrackCache = s_EmptyCache;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
var childTracks = new List<TrackAsset>(m_Children.Count);
|
||
|
|
for (int i = 0; i < m_Children.Count; i++)
|
||
|
|
{
|
||
|
|
var subTrack = m_Children[i] as TrackAsset;
|
||
|
|
if (subTrack != null)
|
||
|
|
childTracks.Add(subTrack);
|
||
|
|
}
|
||
|
|
m_ChildTrackCache = childTracks;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
internal virtual int Hash()
|
||
|
|
{
|
||
|
|
return clips.Length + (m_Markers.Count << 16);
|
||
|
|
}
|
||
|
|
|
||
|
|
int GetClipsHash()
|
||
|
|
{
|
||
|
|
var hash = 0;
|
||
|
|
foreach (var clip in m_Clips)
|
||
|
|
{
|
||
|
|
hash = hash.CombineHash(clip.Hash());
|
||
|
|
}
|
||
|
|
return hash;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the hash code for an AnimationClip.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="clip">The animation clip.</param>
|
||
|
|
/// <returns>A 32-bit signed integer that is the hash code for <paramref name="clip"/>. Returns 0 if <paramref name="clip"/> is null or empty.</returns>
|
||
|
|
protected static int GetAnimationClipHash(AnimationClip clip)
|
||
|
|
{
|
||
|
|
var hash = 0;
|
||
|
|
if (clip != null && !clip.empty)
|
||
|
|
hash = hash.CombineHash(clip.frameRate.GetHashCode())
|
||
|
|
.CombineHash(clip.length.GetHashCode());
|
||
|
|
|
||
|
|
return hash;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool HasNotifications()
|
||
|
|
{
|
||
|
|
return m_Markers.HasNotifications();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool CanCompileNotifications()
|
||
|
|
{
|
||
|
|
return supportsNotifications && m_Markers.HasNotifications();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool CanCreateMixerRecursive()
|
||
|
|
{
|
||
|
|
if (CanCreateTrackMixer())
|
||
|
|
return true;
|
||
|
|
foreach (var track in GetChildTracks())
|
||
|
|
{
|
||
|
|
if (track.CanCreateMixerRecursive())
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|