BEPUphysics.PositionUpdating.ContinuousPositionUpdater.PreUpdate C# (CSharp) Метод

        void PreUpdate(int i)
        {
            if (i >= discreteUpdateables.Count)
            {
                i -= discreteUpdateables.Count;
                if (i >= passiveUpdateables.Count)
                {
                    i -= passiveUpdateables.Count;
                    //It's a continuous updateable.
                    if (continuousUpdateables.Elements[i].IsActive)
                        continuousUpdateables.Elements[i].PreUpdatePosition(timeStepSettings.TimeStepDuration);
                }
                else
                {
                    //It's a passive updateable.
                    if (passiveUpdateables.Elements[i].IsActive)
                        passiveUpdateables.Elements[i].PreUpdatePosition(timeStepSettings.TimeStepDuration);
                }
            }
            else
            {
                //It's a discrete updateable.
                if (discreteUpdateables.Elements[i].IsActive)
                    discreteUpdateables.Elements[i].PreUpdatePosition(timeStepSettings.TimeStepDuration);
            }
        }