public RootMotionInfo GetAnimationRootMotionInfo(Animation animation, float currentTime)
{
RootMotionInfo rootMotion = new RootMotionInfo();
float duration = animation.Duration;
float mid = duration * 0.5f;
rootMotion.timeIsPastMid = currentTime > mid;
TranslateTimeline timeline = animation.FindTranslateTimelineForBone(rootMotionBoneIndex);
if (timeline != null)
{
rootMotion.start = timeline.Evaluate(0);
rootMotion.current = timeline.Evaluate(currentTime);
rootMotion.mid = timeline.Evaluate(mid);
rootMotion.end = timeline.Evaluate(duration);
return(rootMotion);
}
TranslateXTimeline xTimeline = animation.FindTimelineForBone <TranslateXTimeline>(rootMotionBoneIndex);
TranslateYTimeline yTimeline = animation.FindTimelineForBone <TranslateYTimeline>(rootMotionBoneIndex);
if (xTimeline != null || yTimeline != null)
{
rootMotion.start = TimelineExtensions.Evaluate(xTimeline, yTimeline, 0);
rootMotion.current = TimelineExtensions.Evaluate(xTimeline, yTimeline, currentTime);
rootMotion.mid = TimelineExtensions.Evaluate(xTimeline, yTimeline, mid);
rootMotion.end = TimelineExtensions.Evaluate(xTimeline, yTimeline, duration);
return(rootMotion);
}
return(rootMotion);
}
/// <summary>Evaluates the resulting value of a pair of split translate timelines at a given time.
/// SkeletonData can be accessed from Skeleton.Data or from SkeletonDataAsset.GetSkeletonData.
/// If no SkeletonData is given, values are returned as difference to setup pose
/// instead of absolute values.</summary>
public static Vector2 Evaluate(TranslateXTimeline xTimeline, TranslateYTimeline yTimeline,
float time, SkeletonData skeletonData = null)
{
float x = 0, y = 0;
if (xTimeline != null && time > xTimeline.Frames[0])
{
x = xTimeline.GetCurveValue(time);
}
if (yTimeline != null && time > yTimeline.Frames[0])
{
y = yTimeline.GetCurveValue(time);
}
if (skeletonData == null)
{
return(new Vector2(x, y));
}
else
{
var bonesItems = skeletonData.Bones.Items;
BoneData boneDataX = bonesItems[xTimeline.BoneIndex];
BoneData boneDataY = bonesItems[yTimeline.BoneIndex];
return(new Vector2(boneDataX.X + x, boneDataY.Y + y));
}
}
public Vector2 GetAnimationRootMotion(float startTime, float endTime,
Animation animation)
{
TranslateTimeline timeline = animation.FindTranslateTimelineForBone(rootMotionBoneIndex);
if (timeline != null)
{
return(GetTimelineMovementDelta(startTime, endTime, timeline, animation));
}
TranslateXTimeline xTimeline = animation.FindTimelineForBone <TranslateXTimeline>(rootMotionBoneIndex);
TranslateYTimeline yTimeline = animation.FindTimelineForBone <TranslateYTimeline>(rootMotionBoneIndex);
if (xTimeline != null || yTimeline != null)
{
return(GetTimelineMovementDelta(startTime, endTime, xTimeline, yTimeline, animation));
}
return(Vector2.zero);
}
Vector2 GetTimelineMovementDelta(float startTime, float endTime,
TranslateXTimeline xTimeline, TranslateYTimeline yTimeline, Animation animation)
{
Vector2 currentDelta;
if (startTime > endTime) // Looped
{
currentDelta =
(TimelineExtensions.Evaluate(xTimeline, yTimeline, animation.Duration)
- TimelineExtensions.Evaluate(xTimeline, yTimeline, startTime))
+ (TimelineExtensions.Evaluate(xTimeline, yTimeline, endTime)
- TimelineExtensions.Evaluate(xTimeline, yTimeline, 0));
}
else if (startTime != endTime) // Non-looped
{
currentDelta = TimelineExtensions.Evaluate(xTimeline, yTimeline, endTime)
- TimelineExtensions.Evaluate(xTimeline, yTimeline, startTime);
}
else
{
currentDelta = Vector2.zero;
}
return(currentDelta);
}