public static double SmoothDamp(double current, double target, ref double currentVelocity, double smoothTime, double maxSpeed, double deltaTime)
{
smoothTime = MathD.Max(0.0001d, smoothTime);
double num1 = 2d / smoothTime;
double num2 = num1 * deltaTime;
double num3 = (1.0d / (1.0d + num2 + 0.479999989271164d * num2 * num2 + 0.234999999403954d * num2 * num2 * num2));
double num4 = current - target;
double num5 = target;
double max = maxSpeed * smoothTime;
double num6 = MathD.Clamp(num4, -max, max);
target = current - num6;
double num7 = (currentVelocity + num1 * num6) * deltaTime;
currentVelocity = (currentVelocity - num1 * num7) * num3;
double num8 = target + (num6 + num7) * num3;
if (num5 - current > 0.0 == num8 > num5)
{
num8 = num5;
currentVelocity = (num8 - num5) / deltaTime;
}
return(num8);
}
public static bool Approximately(double a, double b)
{
return(Math.Abs(b - a) < MathD.Max(1E-06d * MathD.Max(Math.Abs(a), Math.Abs(b)), double.Epsilon));
}