/// <summary>
/// Gets the time at which the internal curve would be evaluated at the given time.
/// </summary>
/// <param name="time">Time to evaluate the speed-controlled curve.</param>
/// <returns>Time at which the internal curve would be evaluated.</returns>
public double GetInnerTime(double time)
{
if (Curve == null)
{
throw new InvalidOperationException("SpeedControlledCurve's internal curve is null; ensure that its curve property is set prior to evaluation.");
}
float firstTime, lastTime;
GetPathBoundsInformation(out firstTime, out lastTime);
time = Curve <TValue> .ModifyTime(time, firstTime, lastTime, Curve.PreLoop, Curve.PostLoop);
int indexMin = 0;
int indexMax = samples.Count;
if (indexMax == 0)
{
return(0);
}
//If time < controlpoints.mintime, should be... 0 or -1?
while (indexMax - indexMin > 1) //if time belongs to min
{
int midIndex = (indexMin + indexMax) / 2;
if (time > samples[midIndex].X)
{
//Use midIndex as the minimum.
indexMin = midIndex;
}
else if (time < samples[midIndex].X)
{
//Use midindex as the max.
indexMax = midIndex;
}
else
{
//Equal; use it.
indexMin = midIndex;
break;
}
}
if (samples[indexMin].X > time)
{
indexMin -= 1;
}
double curveTime = (time - samples[indexMin].X) / (samples[indexMin + 1].X - samples[indexMin].X);
return((1 - curveTime) * samples[indexMin].Y + (curveTime) * samples[indexMin + 1].Y);
}
/// <summary>
/// Gets the time at which the internal curve would be evaluated at the given time.
/// </summary>
/// <param name="time">Time to evaluate the speed-controlled curve.</param>
/// <returns>Time at which the internal curve would be evaluated.</returns>
public Fix64 GetInnerTime(Fix64 time)
{
if (Curve == null)
{
throw new InvalidOperationException("SpeedControlledCurve's internal curve is null; ensure that its curve property is set prior to evaluation.");
}
Fix64 firstTime, lastTime;
GetPathBoundsInformation(out firstTime, out lastTime);
time = Curve <TValue> .ModifyTime(time, firstTime, lastTime, Curve.PreLoop, Curve.PostLoop);
int indexMin = 0;
int indexMax = samples.Count;
if (indexMax == 1)
{
//1-length curve; asking the system to evaluate
//this will be a waste of time AND
//crash since +1 will be outside scope
return(samples[0].SpeedControlled);
}
if (indexMax == 0)
{
return(F64.C0);
}
//If time < controlpoints.mintime, should be... 0 or -1?
while (indexMax - indexMin > 1) //if time belongs to min
{
int midIndex = (indexMin + indexMax) / 2;
if (time > samples[midIndex].Wrapped)
{
indexMin = midIndex;
}
else
{
indexMax = midIndex;
}
}
Fix64 curveTime = (time - samples[indexMin].Wrapped) / (samples[indexMin + 1].Wrapped - samples[indexMin].Wrapped);
return((F64.C1 - curveTime) * samples[indexMin].SpeedControlled + (curveTime) * samples[indexMin + 1].SpeedControlled);
}
