494 lines
19 KiB
C#
494 lines
19 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using UnityEngine;
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using UnityEngine.Timeline;
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using UnityEngine.Playables;
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namespace UnityEditor.Timeline
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{
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// Editor-only extension methods on track assets
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static class TrackExtensions
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{
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public static readonly double kMinOverlapTime = TimeUtility.kTimeEpsilon * 1000;
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public static AnimationClip GetOrCreateClip(this AnimationTrack track)
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{
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if (track.infiniteClip == null && !track.inClipMode)
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track.CreateInfiniteClip(AnimationTrackRecorder.GetUniqueRecordedClipName(track, AnimationTrackRecorder.kRecordClipDefaultName));
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return track.infiniteClip;
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}
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public static TimelineClip CreateClip(this TrackAsset track, double time)
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{
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var attr = track.GetType().GetCustomAttributes(typeof(TrackClipTypeAttribute), true);
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if (attr.Length == 0)
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return null;
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if (TimelineWindow.instance.state == null)
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return null;
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if (attr.Length == 1)
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{
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var clipClass = (TrackClipTypeAttribute)attr[0];
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var clip = TimelineHelpers.CreateClipOnTrack(clipClass.inspectedType, track, TimelineWindow.instance.state);
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clip.start = time;
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return clip;
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}
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return null;
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}
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static bool Overlaps(TimelineClip blendOut, TimelineClip blendIn)
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{
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if (blendIn == blendOut)
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return false;
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if (Math.Abs(blendIn.start - blendOut.start) < TimeUtility.kTimeEpsilon)
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{
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return blendIn.duration >= blendOut.duration;
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}
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return blendIn.start >= blendOut.start && blendIn.start < blendOut.end;
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}
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public static void ComputeBlendsFromOverlaps(this TrackAsset asset)
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{
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ComputeBlendsFromOverlaps(asset.clips);
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}
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internal static void ComputeBlendsFromOverlaps(TimelineClip[] clips)
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{
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foreach (var clip in clips)
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{
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clip.blendInDuration = -1;
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clip.blendOutDuration = -1;
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}
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foreach (var clip in clips)
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{
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var blendIn = clip;
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var blendOut = clips
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.Where(c => Overlaps(c, blendIn))
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.OrderBy(c => c.start)
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.FirstOrDefault();
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if (blendOut != null)
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{
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UpdateClipIntersection(blendOut, blendIn);
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}
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}
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}
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internal static void UpdateClipIntersection(TimelineClip blendOutClip, TimelineClip blendInClip)
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{
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if (!blendOutClip.SupportsBlending() || !blendInClip.SupportsBlending())
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return;
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if (blendInClip.end < blendOutClip.end)
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return;
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double duration = Math.Max(0, blendOutClip.start + blendOutClip.duration - blendInClip.start);
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duration = duration <= kMinOverlapTime ? 0 : duration;
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blendOutClip.blendOutDuration = duration;
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blendInClip.blendInDuration = duration;
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var blendInMode = blendInClip.blendInCurveMode;
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var blendOutMode = blendOutClip.blendOutCurveMode;
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if (blendInMode == TimelineClip.BlendCurveMode.Manual && blendOutMode == TimelineClip.BlendCurveMode.Auto)
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{
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blendOutClip.mixOutCurve = CurveEditUtility.CreateMatchingCurve(blendInClip.mixInCurve);
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}
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else if (blendInMode == TimelineClip.BlendCurveMode.Auto && blendOutMode == TimelineClip.BlendCurveMode.Manual)
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{
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blendInClip.mixInCurve = CurveEditUtility.CreateMatchingCurve(blendOutClip.mixOutCurve);
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}
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else if (blendInMode == TimelineClip.BlendCurveMode.Auto && blendOutMode == TimelineClip.BlendCurveMode.Auto)
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{
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blendInClip.mixInCurve = null; // resets to default curves
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blendOutClip.mixOutCurve = null;
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}
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}
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internal static void RecursiveSubtrackClone(TrackAsset source, TrackAsset duplicate, IExposedPropertyTable sourceTable, IExposedPropertyTable destTable, PlayableAsset assetOwner)
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{
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var subtracks = source.GetChildTracks();
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foreach (var sub in subtracks)
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{
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var newSub = TimelineHelpers.Clone(duplicate, sub, sourceTable, destTable, assetOwner);
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duplicate.AddChild(newSub);
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RecursiveSubtrackClone(sub, newSub, sourceTable, destTable, assetOwner);
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// Call the custom editor on Create
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var customEditor = CustomTimelineEditorCache.GetTrackEditor(newSub);
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try
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{
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customEditor.OnCreate(newSub, sub);
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}
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catch (Exception e)
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{
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Debug.LogException(e);
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}
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// registration has to happen AFTER recursion
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TimelineCreateUtilities.SaveAssetIntoObject(newSub, assetOwner);
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TimelineUndo.RegisterCreatedObjectUndo(newSub, "Duplicate");
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}
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}
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internal static TrackAsset Duplicate(this TrackAsset track, IExposedPropertyTable sourceTable, IExposedPropertyTable destTable,
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TimelineAsset destinationTimeline = null)
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{
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if (track == null)
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return null;
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// if the destination is us, clear to avoid bad parenting (case 919421)
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if (destinationTimeline == track.timelineAsset)
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destinationTimeline = null;
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var timelineParent = track.parent as TimelineAsset;
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var trackParent = track.parent as TrackAsset;
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if (timelineParent == null && trackParent == null)
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{
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Debug.LogWarning("Cannot duplicate track because it is not parented to known type");
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return null;
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}
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// Determine who the final parent is. If we are pasting into another track, it's always the timeline.
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// Otherwise it's the original parent
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PlayableAsset finalParent = destinationTimeline != null ? destinationTimeline : track.parent;
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// grab the list of tracks to generate a name from (923360) to get the list of names
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// no need to do this part recursively
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var finalTrackParent = finalParent as TrackAsset;
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var finalTimelineAsset = finalParent as TimelineAsset;
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var otherTracks = (finalTimelineAsset != null) ? finalTimelineAsset.trackObjects : finalTrackParent.subTracksObjects;
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// Important to create the new objects before pushing the original undo, or redo breaks the
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// sequence
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var newTrack = TimelineHelpers.Clone(finalParent, track, sourceTable, destTable, finalParent);
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newTrack.name = TimelineCreateUtilities.GenerateUniqueActorName(otherTracks, newTrack.name);
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RecursiveSubtrackClone(track, newTrack, sourceTable, destTable, finalParent);
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TimelineCreateUtilities.SaveAssetIntoObject(newTrack, finalParent);
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TimelineUndo.RegisterCreatedObjectUndo(newTrack, "Duplicate");
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TimelineUndo.PushUndo(finalParent, "Duplicate");
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if (destinationTimeline != null) // other timeline
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destinationTimeline.AddTrackInternal(newTrack);
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else if (timelineParent != null) // this timeline, no parent
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ReparentTracks(new List<TrackAsset> { newTrack }, timelineParent, timelineParent.GetRootTracks().Last(), false);
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else // this timeline, with parent
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trackParent.AddChild(newTrack);
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// Call the custom editor. this check prevents the call when copying to the clipboard
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if (destinationTimeline == null || destinationTimeline == TimelineEditor.inspectedAsset)
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{
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var customEditor = CustomTimelineEditorCache.GetTrackEditor(newTrack);
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try
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{
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customEditor.OnCreate(newTrack, track);
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}
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catch (Exception e)
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{
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Debug.LogException(e);
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}
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}
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return newTrack;
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}
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// Reparents a list of tracks to a new parent
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// the new parent cannot be null (has to be track asset or sequence)
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// the insertAfter can be null (will not reorder)
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internal static bool ReparentTracks(List<TrackAsset> tracksToMove, PlayableAsset targetParent,
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TrackAsset insertMarker = null, bool insertBefore = false)
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{
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var targetParentTrack = targetParent as TrackAsset;
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var targetSequenceTrack = targetParent as TimelineAsset;
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if (tracksToMove == null || tracksToMove.Count == 0 || (targetParentTrack == null && targetSequenceTrack == null))
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return false;
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// invalid parent type on a track
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if (targetParentTrack != null && tracksToMove.Any(x => !TimelineCreateUtilities.ValidateParentTrack(targetParentTrack, x.GetType())))
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return false;
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// no valid tracks means this is simply a rearrangement
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var validTracks = tracksToMove.Where(x => x.parent != targetParent).ToList();
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if (insertMarker == null && !validTracks.Any())
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return false;
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var parents = validTracks.Select(x => x.parent).Where(x => x != null).Distinct().ToList();
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// push the current state of the tracks that will change
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foreach (var p in parents)
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{
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TimelineUndo.PushUndo(p, "Reparent");
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}
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foreach (var t in validTracks)
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{
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TimelineUndo.PushUndo(t, "Reparent");
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}
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TimelineUndo.PushUndo(targetParent, "Reparent");
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// need to reparent tracks first, before moving them.
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foreach (var t in validTracks)
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{
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if (t.parent != targetParent)
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{
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TrackAsset toMoveParent = t.parent as TrackAsset;
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TimelineAsset toMoveTimeline = t.parent as TimelineAsset;
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if (toMoveTimeline != null)
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{
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toMoveTimeline.RemoveTrack(t);
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}
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else if (toMoveParent != null)
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{
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toMoveParent.RemoveSubTrack(t);
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}
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if (targetParentTrack != null)
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{
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targetParentTrack.AddChild(t);
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targetParentTrack.SetCollapsed(false);
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}
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else
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{
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targetSequenceTrack.AddTrackInternal(t);
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}
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}
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}
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if (insertMarker != null)
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{
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// re-ordering track. This is using internal APIs, so invalidation of the tracks must be done manually to avoid
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// cache mismatches
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var children = targetParentTrack != null ? targetParentTrack.subTracksObjects : targetSequenceTrack.trackObjects;
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TimelineUtility.ReorderTracks(children, tracksToMove, insertMarker, insertBefore);
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if (targetParentTrack != null)
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targetParentTrack.Invalidate();
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if (insertMarker.timelineAsset != null)
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insertMarker.timelineAsset.Invalidate();
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}
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return true;
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}
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internal static IEnumerable<TrackAsset> FilterTracks(IEnumerable<TrackAsset> tracks)
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{
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var nTracks = tracks.Count();
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// Duplicate is recursive. If should not have parent and child in the list
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var hash = new HashSet<TrackAsset>(tracks);
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var take = new Dictionary<TrackAsset, bool>(nTracks);
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foreach (var track in tracks)
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{
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var parent = track.parent as TrackAsset;
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var foundParent = false;
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// go up the hierarchy
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while (parent != null && !foundParent)
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{
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if (hash.Contains(parent))
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{
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foundParent = true;
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}
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parent = parent.parent as TrackAsset;
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}
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take[track] = !foundParent;
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}
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foreach (var track in tracks)
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{
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if (take[track])
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yield return track;
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}
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}
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internal static bool IsVisibleRecursive(this TrackAsset track)
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{
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var t = track;
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while ((t = t.parent as TrackAsset) != null)
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{
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if (t.GetCollapsed())
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return false;
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}
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return true;
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}
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internal static bool GetCollapsed(this TrackAsset track)
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{
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return TimelineWindowViewPrefs.IsTrackCollapsed(track);
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}
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internal static void SetCollapsed(this TrackAsset track, bool collapsed)
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{
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TimelineWindowViewPrefs.SetTrackCollapsed(track, collapsed);
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}
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internal static bool GetShowMarkers(this TrackAsset track)
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{
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return TimelineWindowViewPrefs.IsShowMarkers(track);
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}
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internal static void SetShowMarkers(this TrackAsset track, bool collapsed)
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{
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TimelineWindowViewPrefs.SetTrackShowMarkers(track, collapsed);
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}
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internal static bool GetShowInlineCurves(this TrackAsset track)
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{
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return TimelineWindowViewPrefs.GetShowInlineCurves(track);
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}
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internal static void SetShowInlineCurves(this TrackAsset track, bool inlineOn)
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{
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TimelineWindowViewPrefs.SetShowInlineCurves(track, inlineOn);
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}
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internal static bool ShouldShowInfiniteClipEditor(this TrackAsset track)
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{
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var animationTrack = track as AnimationTrack;
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if (animationTrack != null)
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return animationTrack.ShouldShowInfiniteClipEditor();
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return track.HasAnyAnimatableParameters();
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}
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internal static bool ShouldShowInfiniteClipEditor(this AnimationTrack track)
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{
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return track != null && !track.inClipMode && track.infiniteClip != null;
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}
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// Special method to remove a track that is in a broken state. i.e. the script won't load
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internal static bool RemoveBrokenTrack(PlayableAsset parent, ScriptableObject track)
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{
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var parentTrack = parent as TrackAsset;
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var parentTimeline = parent as TimelineAsset;
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if (parentTrack == null && parentTimeline == null)
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throw new ArgumentException("parent is not a valid parent type", "parent");
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// this object must be a Unity null, but not actually null;
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object trackAsObject = track;
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if (trackAsObject == null || track != null) // yes, this is correct
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throw new ArgumentException("track is not in a broken state");
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// this belongs to a parent track
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if (parentTrack != null)
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{
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int index = parentTrack.subTracksObjects.FindIndex(t => t.GetInstanceID() == track.GetInstanceID());
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if (index >= 0)
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{
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TimelineUndo.PushUndo(parentTrack, "Remove Track");
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parentTrack.subTracksObjects.RemoveAt(index);
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parentTrack.Invalidate();
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Undo.DestroyObjectImmediate(track);
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return true;
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}
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}
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else if (parentTimeline != null)
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{
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int index = parentTimeline.trackObjects.FindIndex(t => t.GetInstanceID() == track.GetInstanceID());
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if (index >= 0)
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{
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TimelineUndo.PushUndo(parentTimeline, "Remove Track");
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parentTimeline.trackObjects.RemoveAt(index);
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parentTimeline.Invalidate();
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Undo.DestroyObjectImmediate(track);
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return true;
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}
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}
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return false;
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}
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// Find the gap at the given time
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// return true if there is a gap, false if there is an intersection
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// endGap will be Infinity if the gap has no end
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internal static bool GetGapAtTime(this TrackAsset track, double time, out double startGap, out double endGap)
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{
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startGap = 0;
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endGap = Double.PositiveInfinity;
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if (track == null || !track.GetClips().Any())
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{
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return false;
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}
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track.SortClips();
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var sortedByStartTime = track.clips;
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for (int i = 0; i < sortedByStartTime.Length; i++)
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{
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var clip = sortedByStartTime[i];
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// intersection
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if (time >= clip.start && time <= clip.end)
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{
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endGap = time;
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startGap = time;
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return false;
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}
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if (clip.end < time)
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{
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startGap = clip.end;
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}
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if (clip.start > time)
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{
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endGap = clip.start;
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break;
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}
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}
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if (endGap - startGap < TimelineClip.kMinDuration)
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{
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startGap = time;
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endGap = time;
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return false;
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}
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return true;
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}
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public static bool IsCompatibleWithClip(this TrackAsset track, TimelineClip clip)
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{
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if (track == null || clip == null || clip.asset == null)
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return false;
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return TypeUtility.GetPlayableAssetsHandledByTrack(track.GetType()).Contains(clip.asset.GetType());
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}
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// Get a flattened list of all child tracks
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public static void GetFlattenedChildTracks(this TrackAsset asset, List<TrackAsset> list)
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{
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if (asset == null || list == null)
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return;
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foreach (var track in asset.GetChildTracks())
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{
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list.Add(track);
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GetFlattenedChildTracks(track, list);
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}
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}
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public static IEnumerable<TrackAsset> GetFlattenedChildTracks(this TrackAsset asset)
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{
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if (asset == null || !asset.GetChildTracks().Any())
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return Enumerable.Empty<TrackAsset>();
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var flattenedChildTracks = new List<TrackAsset>();
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GetFlattenedChildTracks(asset, flattenedChildTracks);
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return flattenedChildTracks;
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}
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}
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}
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