/// <summary>
/// Helper used by the Update method to refresh the BoneTransforms data.
/// </summary>
public void UpdateBoneTransforms(TimeSpan time, bool relativeToCurrentTime)
{
if (currentClipValue == null)
{
throw new InvalidOperationException(
"AnimationPlayer.Update was called before StartClip");
}
// Update the animation position.
if (relativeToCurrentTime)
{
time += currentTimeValue;
// If we reached the end, loop back to the start.
while (time >= currentClipValue.Duration)
{
time -= currentClipValue.Duration;
}
}
if ((time < TimeSpan.Zero) || (time >= currentClipValue.Duration))
{
throw new ArgumentOutOfRangeException("time");
}
// If the position moved backwards, reset the keyframe index.
if (time < currentTimeValue)
{
currentKeyframe = 0;
skinningDataValue.BindPose.CopyTo(boneTransforms, 0);
}
currentTimeValue = time;
// Read keyframe matrices.
IList <CTKeyframe3D> keyframes = currentClipValue.Keyframes;
while (currentKeyframe < keyframes.Count)
{
CTKeyframe3D keyframe = keyframes[currentKeyframe];
// Stop when we've read up to the current time position.
if (keyframe.Time > currentTimeValue)
{
break;
}
// Use this keyframe.
boneTransforms[keyframe.Bone] = keyframe.Transform;
currentKeyframe++;
}
}
public Matrix[] GetTransformsFromTime(TimeSpan ts)
{
Matrix[] xforms = new Matrix[_SkinData.BindPose.Count];
_SkinData.BindPose.CopyTo(xforms, 0);
int keyNum = 0;
while (keyNum < _KeyframeList.Count)
{
CTKeyframe3D key = _KeyframeList[keyNum];
if (key.Time > ts)
{
break;
}
xforms[key.Bone] = key.Transform;
keyNum++;
}
return(xforms);
}
