private void _getTimelineFrameMatrix(AnimationData animation,BoneTimelineData timeline,float position,Transform transform) // Support 2.x ~ 3.x data.
{
var frameIndex = (int)Math.Floor(position * animation.frameCount / animation.duration);
if (timeline.frames.Count == 1 || frameIndex >= timeline.frames.Count)
{
transform.CopyFrom(timeline.frames[0].transform);
}
else
{
var frame = timeline.frames[frameIndex];
float tweenProgress = 0.0f;
if (frame.tweenEasing != DragonBones.NO_TWEEN)
{
tweenProgress = (position - frame.position) / frame.duration;
if (frame.tweenEasing != 0.0f)
{
tweenProgress = TweenTimelineState <BoneFrameData,BoneTimelineData> ._getEasingValue(tweenProgress,frame.tweenEasing);
}
}
else if (frame.curve != null)
{
tweenProgress = (position - frame.position) / frame.duration;
tweenProgress = TweenTimelineState <BoneFrameData,BoneTimelineData> ._getCurveEasingValue(tweenProgress,frame.curve);
}
var nextFrame = frame.next;
transform.x = nextFrame.transform.x - frame.transform.x;
transform.y = nextFrame.transform.y - frame.transform.y;
transform.skewX = Transform.NormalizeRadian(nextFrame.transform.skewX - frame.transform.skewX);
transform.skewY = Transform.NormalizeRadian(nextFrame.transform.skewY - frame.transform.skewY);
transform.scaleX = nextFrame.transform.scaleX - frame.transform.scaleX;
transform.scaleY = nextFrame.transform.scaleY - frame.transform.scaleY;
transform.x = frame.transform.x + transform.x * tweenProgress;
transform.y = frame.transform.y + transform.y * tweenProgress;
transform.skewX = frame.transform.skewX + transform.skewX * tweenProgress;
transform.skewY = frame.transform.skewY + transform.skewY * tweenProgress;
transform.scaleX = frame.transform.scaleX + transform.scaleX * tweenProgress;
transform.scaleY = frame.transform.scaleY + transform.scaleY * tweenProgress;
}
transform.Add(timeline.originTransform);
}
protected override void _OnUpdateFrame()
{
if (this._tweenState == TweenState.Always)
{
this._tweenProgress = (this.currentTime - this._framePosition) * this._frameDurationR;
if (this._tweenType == TweenType.Curve)
{
this._tweenProgress = TweenTimelineState._GetEasingCurveValue(this._tweenProgress, this._frameArray, this._curveCount, (int)this._frameOffset + (int)BinaryOffset.FrameCurveSamples);
}
else if (this._tweenType != TweenType.Line)
{
this._tweenProgress = TweenTimelineState._GetEasingValue(this._tweenType, this._tweenProgress, this._tweenEasing);
}
}
else
{
this._tweenProgress = 0.0f;
}
}