Inital commit

1 files changed, 435 insertions, 0 deletions

diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Animation/TimelineAnimationUtilities.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Animation/TimelineAnimationUtilities.cs
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+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Animation/TimelineAnimationUtilities.cs
@@ -0,0 +1,435 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using UnityEditor;
+using UnityEngineInternal;
+using UnityEngine.Timeline;
+using UnityEngine.Playables;
+using Object = UnityEngine.Object;
+
+namespace UnityEditor.Timeline
+{
+    class TimelineAnimationUtilities
+    {
+        public enum OffsetEditMode
+        {
+            None = -1,
+            Translation = 0,
+            Rotation = 1
+        }
+
+        public static bool ValidateOffsetAvailabitity(PlayableDirector director, Animator animator)
+        {
+            if (director == null || animator == null)
+                return false;
+
+            return true;
+        }
+
+        public static TimelineClip GetPreviousClip(TimelineClip clip)
+        {
+            TimelineClip previousClip = null;
+            foreach (var c in clip.parentTrack.clips)
+            {
+                if (c.start < clip.start && (previousClip == null || c.start >= previousClip.start))
+                    previousClip = c;
+            }
+            return previousClip;
+        }
+
+        public static TimelineClip GetNextClip(TimelineClip clip)
+        {
+            return clip.parentTrack.clips.Where(c => c.start > clip.start).OrderBy(c => c.start).FirstOrDefault();
+        }
+
+        public struct RigidTransform
+        {
+            public Vector3 position;
+            public Quaternion rotation;
+
+            public static RigidTransform Compose(Vector3 pos, Quaternion rot)
+            {
+                RigidTransform ret;
+                ret.position = pos;
+                ret.rotation = rot;
+                return ret;
+            }
+
+            public static RigidTransform Mul(RigidTransform a, RigidTransform b)
+            {
+                RigidTransform ret;
+                ret.rotation = a.rotation * b.rotation;
+                ret.position = a.position + a.rotation * b.position;
+                return ret;
+            }
+
+            public static RigidTransform Inverse(RigidTransform a)
+            {
+                RigidTransform ret;
+                ret.rotation = Quaternion.Inverse(a.rotation);
+                ret.position = ret.rotation * (-a.position);
+                return ret;
+            }
+
+            public static RigidTransform identity
+            {
+                get { return Compose(Vector3.zero, Quaternion.identity); }
+            }
+        }
+
+
+        private static Matrix4x4 GetTrackMatrix(Transform transform, AnimationTrack track)
+        {
+            Matrix4x4 trackMatrix = Matrix4x4.TRS(track.position, track.rotation, Vector3.one);
+
+            // in scene off mode, the track offsets are set to the preview position which is stored in the track
+            if (track.trackOffset == TrackOffset.ApplySceneOffsets)
+            {
+                trackMatrix = Matrix4x4.TRS(track.sceneOffsetPosition, Quaternion.Euler(track.sceneOffsetRotation), Vector3.one);
+            }
+
+            // put the parent transform on to the track matrix
+            if (transform.parent != null)
+            {
+                trackMatrix = transform.parent.localToWorldMatrix * trackMatrix;
+            }
+
+            return trackMatrix;
+        }
+
+        // Given a world space position and rotation, updates the clip offsets to match that
+        public static RigidTransform UpdateClipOffsets(AnimationPlayableAsset asset, AnimationTrack track, Transform transform, Vector3 globalPosition, Quaternion globalRotation)
+        {
+            Matrix4x4 worldToLocal = transform.worldToLocalMatrix;
+            Matrix4x4 clipMatrix = Matrix4x4.TRS(asset.position, asset.rotation, Vector3.one);
+            Matrix4x4 trackMatrix = GetTrackMatrix(transform, track);
+
+
+            // Use the transform to find the proper goal matrix with scale taken into account
+            var oldPos = transform.position;
+            var oldRot = transform.rotation;
+            transform.position = globalPosition;
+            transform.rotation = globalRotation;
+            Matrix4x4 goal = transform.localToWorldMatrix;
+            transform.position = oldPos;
+            transform.rotation = oldRot;
+
+            // compute the new clip matrix.
+            Matrix4x4 newClip = trackMatrix.inverse * goal * worldToLocal * trackMatrix * clipMatrix;
+            return RigidTransform.Compose(newClip.GetColumn(3), MathUtils.QuaternionFromMatrix(newClip));
+        }
+
+        public static RigidTransform GetTrackOffsets(AnimationTrack track, Transform transform)
+        {
+            Vector3 position = track.position;
+            Quaternion rotation = track.rotation;
+            if (transform != null && transform.parent != null)
+            {
+                position = transform.parent.TransformPoint(position);
+                rotation = transform.parent.rotation * rotation;
+                MathUtils.QuaternionNormalize(ref rotation);
+            }
+
+            return RigidTransform.Compose(position, rotation);
+        }
+
+        public static void UpdateTrackOffset(AnimationTrack track, Transform transform, RigidTransform offsets)
+        {
+            if (transform != null && transform.parent != null)
+            {
+                offsets.position = transform.parent.InverseTransformPoint(offsets.position);
+                offsets.rotation = Quaternion.Inverse(transform.parent.rotation) * offsets.rotation;
+                MathUtils.QuaternionNormalize(ref offsets.rotation);
+            }
+
+            track.position = offsets.position;
+            track.eulerAngles = AnimationUtility.GetClosestEuler(offsets.rotation, track.eulerAngles, RotationOrder.OrderZXY);
+            track.UpdateClipOffsets();
+        }
+
+        static MatchTargetFields GetMatchFields(TimelineClip clip)
+        {
+            var track = clip.parentTrack as AnimationTrack;
+            if (track == null)
+                return MatchTargetFieldConstants.None;
+
+            var asset = clip.asset as AnimationPlayableAsset;
+            var fields = track.matchTargetFields;
+            if (asset != null && !asset.useTrackMatchFields)
+                fields = asset.matchTargetFields;
+            return fields;
+        }
+
+        static void WriteMatchFields(AnimationPlayableAsset asset, RigidTransform result, MatchTargetFields fields)
+        {
+            Vector3 position = asset.position;
+
+            position.x = fields.HasAny(MatchTargetFields.PositionX) ? result.position.x : position.x;
+            position.y = fields.HasAny(MatchTargetFields.PositionY) ? result.position.y : position.y;
+            position.z = fields.HasAny(MatchTargetFields.PositionZ) ? result.position.z : position.z;
+
+            asset.position = position;
+
+            // check first to avoid unnecessary conversion errors
+            if (fields.HasAny(MatchTargetFieldConstants.Rotation))
+            {
+                Vector3 eulers = asset.eulerAngles;
+                Vector3 resultEulers = result.rotation.eulerAngles;
+
+                eulers.x = fields.HasAny(MatchTargetFields.RotationX) ? resultEulers.x : eulers.x;
+                eulers.y = fields.HasAny(MatchTargetFields.RotationY) ? resultEulers.y : eulers.y;
+                eulers.z = fields.HasAny(MatchTargetFields.RotationZ) ? resultEulers.z : eulers.z;
+
+                asset.eulerAngles = AnimationUtility.GetClosestEuler(Quaternion.Euler(eulers), asset.eulerAngles, RotationOrder.OrderZXY);
+            }
+        }
+
+        public static void MatchPrevious(TimelineClip currentClip, Transform matchPoint, PlayableDirector director)
+        {
+            const double timeEpsilon = 0.00001;
+            MatchTargetFields matchFields = GetMatchFields(currentClip);
+            if (matchFields == MatchTargetFieldConstants.None || matchPoint == null)
+                return;
+
+            double cachedTime = director.time;
+
+            // finds previous clip
+            TimelineClip previousClip = GetPreviousClip(currentClip);
+            if (previousClip == null || currentClip == previousClip)
+                return;
+
+            // make sure the transform is properly updated before modifying the graph
+            director.Evaluate();
+
+            var parentTrack = currentClip.parentTrack as AnimationTrack;
+
+            var blendIn = currentClip.blendInDuration;
+            currentClip.blendInDuration = 0;
+            var blendOut = previousClip.blendOutDuration;
+            previousClip.blendOutDuration = 0;
+
+            //evaluate previous without current
+            parentTrack.RemoveClip(currentClip);
+            director.RebuildGraph();
+            double previousEndTime = currentClip.start > previousClip.end ? previousClip.end : currentClip.start;
+            director.time = previousEndTime - timeEpsilon;
+            director.Evaluate(); // add port to evaluate only track
+
+            var targetPosition = matchPoint.position;
+            var targetRotation = matchPoint.rotation;
+
+            // evaluate current without previous
+            parentTrack.AddClip(currentClip);
+            parentTrack.RemoveClip(previousClip);
+            director.RebuildGraph();
+            director.time = currentClip.start + timeEpsilon;
+            director.Evaluate();
+
+            //////////////////////////////////////////////////////////////////////
+            //compute offsets
+
+            var animationPlayable = currentClip.asset as AnimationPlayableAsset;
+            var match = UpdateClipOffsets(animationPlayable, parentTrack, matchPoint, targetPosition, targetRotation);
+            WriteMatchFields(animationPlayable, match, matchFields);
+
+            //////////////////////////////////////////////////////////////////////
+
+            currentClip.blendInDuration = blendIn;
+            previousClip.blendOutDuration = blendOut;
+
+            parentTrack.AddClip(previousClip);
+            director.RebuildGraph();
+            director.time = cachedTime;
+            director.Evaluate();
+        }
+
+        public static void MatchNext(TimelineClip currentClip, Transform matchPoint, PlayableDirector director)
+        {
+            const double timeEpsilon = 0.00001;
+            MatchTargetFields matchFields = GetMatchFields(currentClip);
+            if (matchFields == MatchTargetFieldConstants.None || matchPoint == null)
+                return;
+
+            double cachedTime = director.time;
+
+            // finds next clip
+            TimelineClip nextClip = GetNextClip(currentClip);
+            if (nextClip == null || currentClip == nextClip)
+                return;
+
+            // make sure the transform is properly updated before modifying the graph
+            director.Evaluate();
+
+            var parentTrack = currentClip.parentTrack as AnimationTrack;
+
+            var blendOut = currentClip.blendOutDuration;
+            var blendIn = nextClip.blendInDuration;
+            currentClip.blendOutDuration = 0;
+            nextClip.blendInDuration = 0;
+
+            //evaluate previous without current
+            parentTrack.RemoveClip(currentClip);
+            director.RebuildGraph();
+            director.time = nextClip.start + timeEpsilon;
+            director.Evaluate(); // add port to evaluate only track
+
+            var targetPosition = matchPoint.position;
+            var targetRotation = matchPoint.rotation;
+
+            // evaluate current without next
+            parentTrack.AddClip(currentClip);
+            parentTrack.RemoveClip(nextClip);
+            director.RebuildGraph();
+            director.time = Math.Min(nextClip.start, currentClip.end - timeEpsilon);
+            director.Evaluate();
+
+            //////////////////////////////////////////////////////////////////////
+            //compute offsets
+
+            var animationPlayable = currentClip.asset as AnimationPlayableAsset;
+            var match = UpdateClipOffsets(animationPlayable, parentTrack, matchPoint, targetPosition, targetRotation);
+            WriteMatchFields(animationPlayable, match, matchFields);
+
+            //////////////////////////////////////////////////////////////////////
+
+            currentClip.blendOutDuration = blendOut;
+            nextClip.blendInDuration = blendIn;
+
+            parentTrack.AddClip(nextClip);
+            director.RebuildGraph();
+            director.time = cachedTime;
+            director.Evaluate();
+        }
+
+        public static TimelineWindowTimeControl CreateTimeController(WindowState state, TimelineClip clip)
+        {
+            var animationWindow = EditorWindow.GetWindow<AnimationWindow>();
+            var timeController = ScriptableObject.CreateInstance<TimelineWindowTimeControl>();
+            timeController.Init(animationWindow.state, clip);
+            return timeController;
+        }
+
+        public static TimelineWindowTimeControl CreateTimeController(WindowState state, TimelineWindowTimeControl.ClipData clipData)
+        {
+            var animationWindow = EditorWindow.GetWindow<AnimationWindow>();
+            var timeController = ScriptableObject.CreateInstance<TimelineWindowTimeControl>();
+            timeController.Init(animationWindow.state, clipData);
+            return timeController;
+        }
+
+        public static void EditAnimationClipWithTimeController(AnimationClip animationClip, TimelineWindowTimeControl timeController, Object sourceObject)
+        {
+            var animationWindow = EditorWindow.GetWindow<AnimationWindow>();
+            animationWindow.EditSequencerClip(animationClip, sourceObject, timeController);
+        }
+
+        public static void UnlinkAnimationWindowFromTracks(IEnumerable<TrackAsset> tracks)
+        {
+            var clips = new List<AnimationClip>();
+            foreach (var track in tracks)
+            {
+                var animationTrack = track as AnimationTrack;
+                if (animationTrack != null && animationTrack.infiniteClip != null)
+                    clips.Add(animationTrack.infiniteClip);
+
+                GetAnimationClips(track.GetClips(), clips);
+            }
+            UnlinkAnimationWindowFromAnimationClips(clips);
+        }
+
+        public static void UnlinkAnimationWindowFromClips(IEnumerable<TimelineClip> timelineClips)
+        {
+            var clips = new List<AnimationClip>();
+            GetAnimationClips(timelineClips, clips);
+            UnlinkAnimationWindowFromAnimationClips(clips);
+        }
+
+        public static void UnlinkAnimationWindowFromAnimationClips(ICollection<AnimationClip> clips)
+        {
+            if (clips.Count == 0)
+                return;
+
+            UnityEngine.Object[] windows = Resources.FindObjectsOfTypeAll(typeof(AnimationWindow));
+            foreach (var animWindow in windows.OfType<AnimationWindow>())
+            {
+                if (animWindow != null && animWindow.state != null && animWindow.state.linkedWithSequencer && clips.Contains(animWindow.state.activeAnimationClip))
+                    animWindow.UnlinkSequencer();
+            }
+        }
+
+        public static void UnlinkAnimationWindow()
+        {
+            UnityEngine.Object[] windows = Resources.FindObjectsOfTypeAll(typeof(AnimationWindow));
+            foreach (var animWindow in windows.OfType<AnimationWindow>())
+            {
+                if (animWindow != null && animWindow.state != null && animWindow.state.linkedWithSequencer)
+                    animWindow.UnlinkSequencer();
+            }
+        }
+
+        private static void GetAnimationClips(IEnumerable<TimelineClip> timelineClips, List<AnimationClip> clips)
+        {
+            foreach (var timelineClip in timelineClips)
+            {
+                if (timelineClip.curves != null)
+                    clips.Add(timelineClip.curves);
+                AnimationPlayableAsset apa = timelineClip.asset as AnimationPlayableAsset;
+                if (apa != null && apa.clip != null)
+                    clips.Add(apa.clip);
+            }
+        }
+
+        public static int GetAnimationWindowCurrentFrame()
+        {
+            var animationWindow = EditorWindow.GetWindow<AnimationWindow>();
+            if (animationWindow)
+                return animationWindow.state.currentFrame;
+            return -1;
+        }
+
+        public static void SetAnimationWindowCurrentFrame(int frame)
+        {
+            var animationWindow = EditorWindow.GetWindow<AnimationWindow>();
+            if (animationWindow)
+                animationWindow.state.currentFrame = frame;
+        }
+
+        public static void ConstrainCurveToBooleanValues(AnimationCurve curve)
+        {
+            // Clamp the values first
+            var keys = curve.keys;
+            for (var i = 0; i < keys.Length; i++)
+            {
+                var key = keys[i];
+                key.value = key.value < 0.5f ? 0.0f : 1.0f;
+                keys[i] = key;
+            }
+            curve.keys = keys;
+
+            // Update the tangents once all the values are clamped
+            for (var i = 0; i < curve.length; i++)
+            {
+                AnimationUtility.SetKeyLeftTangentMode(curve, i, AnimationUtility.TangentMode.Constant);
+                AnimationUtility.SetKeyRightTangentMode(curve, i, AnimationUtility.TangentMode.Constant);
+            }
+        }
+
+        public static void ConstrainCurveToRange(AnimationCurve curve, float minValue, float maxValue)
+        {
+            var keys = curve.keys;
+            for (var i = 0; i < keys.Length; i++)
+            {
+                var key = keys[i];
+                key.value = Mathf.Clamp(key.value, minValue, maxValue);
+                keys[i] = key;
+            }
+            curve.keys = keys;
+        }
+
+        public static bool IsAnimationClip(TimelineClip clip)
+        {
+            return clip != null && (clip.asset as AnimationPlayableAsset) != null;
+        }
+    }
+}