//----------------------------------------------------------------------------------------------------------------------
//Calculate the used image index for the passed localTime
internal int LocalTimeToImageIndex(TimelineClip clip, double localTime)
{
TimelineClipSISData timelineSISData = GetBoundTimelineClipSISData();
if (null != timelineSISData)
{
double scaledTimePerFrame = TimelineUtility.CalculateTimePerFrame(clip) * clip.timeScale;
//Try to check if this frame is "dropped", so that we should use the image in the prev frame
int playableFrameIndex = Mathf.RoundToInt((float)localTime / (float)scaledTimePerFrame);
SISPlayableFrame playableFrame = timelineSISData.GetPlayableFrame(playableFrameIndex);
while (playableFrameIndex > 0 && !playableFrame.IsUsed())
{
--playableFrameIndex;
playableFrame = timelineSISData.GetPlayableFrame(playableFrameIndex);
localTime = playableFrameIndex * scaledTimePerFrame;
}
}
double imageSequenceTime = LocalTimeToCurveTime(clip, localTime);
int count = m_imageFiles.Count;
//Can't round up, because if the time for the next frame hasn't been reached, then we should stick
int index = Mathf.FloorToInt(count * (float)imageSequenceTime);
index = Mathf.Clamp(index, 0, count - 1);
return(index);
}
internal static void SetUsed(this SISPlayableFrame playableFrame, bool used)
{
#if UNITY_EDITOR
bool prevUsed = playableFrame.IsUsed();
#endif
playableFrame.SetBoolProperty(PlayableFramePropertyID.USED, used);
#if UNITY_EDITOR
//Refresh
if (used != prevUsed)
{
TimelineEditor.Refresh(RefreshReason.ContentsModified);
}
#endif
}
//----------------------------------------------------------------------------------------------------------------------
//Calculate the used image index for the passed localTime
internal int LocalTimeToImageIndex(TimelineClip clip, double localTime)
{
SISClipData clipData = GetBoundClipData();
if (null == clipData)
{
return(0);
}
{
//drop disabled frames
double scaledTimePerFrame = TimelineUtility.CalculateTimePerFrame(clip) * clip.timeScale;
//Try to check if this frame is "dropped", so that we should use the image in the prev frame
int playableFrameIndex = Mathf.RoundToInt((float)(localTime - clip.clipIn) / (float)scaledTimePerFrame);
if (playableFrameIndex < 0)
{
return(0);
}
SISPlayableFrame playableFrame = clipData.GetPlayableFrame(playableFrameIndex);
while (playableFrameIndex > 0 && !playableFrame.IsUsed())
{
--playableFrameIndex;
playableFrame = clipData.GetPlayableFrame(playableFrameIndex);
localTime = playableFrameIndex * scaledTimePerFrame;
}
}
AnimationCurve curve = clipData.GetAnimationCurve();
double imageSequenceTime = curve.Evaluate((float)localTime);
int count = m_imageFiles.Count;
//Can't round up, because if the time for the next frame hasn't been reached, then we should stick
int index = Mathf.FloorToInt(count * (float)imageSequenceTime);
index = Mathf.Clamp(index, 0, count - 1);
return(index);
}