public static double PingPong(double t, double length)
{
t = MathD.Repeat(t, length * 2d);
return(length - MathD.Abs(t - length));
}
public static double PingPong(double t, double length)
{
t = MathD.Repeat(t, length * 2d);
return(length - MathD.Abs(t - length));
}