OldThink/Content.Shared/_White/Spline/ISpline.cs

namespace Content.Shared._White.Spline;

public interface ISpline<T>
{
    T SamplePosition(ReadOnlySpan<T> controlPoints, float u);

    T SampleVelocity(ReadOnlySpan<T> controlPoints, float u);

    (T Position, T Velocity) SamplePositionVelocity(ReadOnlySpan<T> controlPoints, float u);

    IEnumerable<float> IteratePointParamsByLength(T[] controlPoints, float lengthStepSize);

    float GetControlGroupAmount(int controlPointAmount);
}