private static void UpdateAnimation(ref Channel animationChannel, ref KeyFrameData <T> animationValue)
{
animationChannel.ValuePrev = animationChannel.ValueStart;
animationChannel.ValueStart = animationChannel.ValueEnd;
animationChannel.ValueEnd = animationChannel.ValueNext;
animationChannel.ValueNext = animationValue;
}
internal static void UpdateAnimation(ref EvaluatorData animationChannel, ref KeyFrameData <float> animationValue)
{
animationChannel.ValuePrev = animationChannel.ValueStart;
animationChannel.ValueStart = animationChannel.ValueEnd;
animationChannel.ValueEnd = animationChannel.ValueNext;
animationChannel.ValueNext = animationValue;
}
/// <summary>
/// Evaluates the error within specified segment.
/// </summary>
/// <param name="originalCurve">The original curve.</param>
/// <param name="evaluator">The evaluator.</param>
/// <param name="stepSize">Size of the step.</param>
/// <param name="keyFrame">The key frame.</param>
/// <param name="nextKeyFrame">The next key frame.</param>
/// <returns></returns>
private KeyValuePair <CompressedTimeSpan, float> EvaluateError(Func <CompressedTimeSpan, float> originalCurve, Evaluator evaluator, CompressedTimeSpan stepSize, KeyFrameData <float> keyFrame, KeyFrameData <float> nextKeyFrame)
{
var startTime = keyFrame.Time;
var endTime = nextKeyFrame.Time;
var biggestDifference = 0.0f;
var biggestDifferenceTime = startTime;
// Rounds up start time (i.e. startTime is multiple of stepSize)
startTime = new CompressedTimeSpan((startTime.Ticks / stepSize.Ticks + 1) * stepSize.Ticks);
for (var time = startTime; time < endTime; time += stepSize)
{
var difference = Math.Abs(originalCurve(time) - evaluator.Evaluate(time));
if (difference > biggestDifference)
{
biggestDifference = difference;
biggestDifferenceTime = time;
}
}
return(new KeyValuePair <CompressedTimeSpan, float>(biggestDifferenceTime, biggestDifference));
}