public static double PingPong(double t, double length)
{
t = Mathd.Repeat(t, length * 2d);
return(length - Mathd.Abs(t - length));
}
public static double SmoothDampAngle(double current, double target, ref double currentVelocity, double smoothTime, double maxSpeed, double deltaTime)
{
target = current + Mathd.DeltaAngle(current, target);
return(Mathd.SmoothDamp(current, target, ref currentVelocity, smoothTime, maxSpeed, deltaTime));
}
public static double Repeat(double t, double length)
{
return(t - Mathd.Floor(t / length) * length);
}
public static double SmoothStep(double from, double to, double t)
{
t = Mathd.Clamp01(t);
t = (-2.0 * t * t * t + 3.0 * t * t);
return(to * t + from * (1.0 - t));
}
public static bool Approximately(double a, double b)
{
return(Mathd.Abs(b - a) < Mathd.Max(1E-06d * Mathd.Max(Mathd.Abs(a), Mathd.Abs(b)), 1.121039E-44d));
}
public static double MoveTowardsAngle(double current, double target, double maxDelta)
{
target = current + Mathd.DeltaAngle(current, target);
return(Mathd.MoveTowards(current, target, maxDelta));
}
public static double Lerp(double from, double to, double t)
{
return(from + (to - from) * Mathd.Clamp01(t));
}
public static Vector2d Max(Vector2d lhs, Vector2d rhs)
{
return(new Vector2d(Mathd.Max(lhs.x, rhs.x), Mathd.Max(lhs.y, rhs.y)));
}
public static double Angle(Vector2d from, Vector2d to)
{
return(Mathd.Acos(Mathd.Clamp(Vector2d.Dot(from.normalized, to.normalized), -1d, 1d)) * 57.29578d);
}
public static Vector2d Lerp(Vector2d from, Vector2d to, double t)
{
t = Mathd.Clamp01(t);
return(new Vector2d(from.x + (to.x - from.x) * t, from.y + (to.y - from.y) * t));
}