A Simple Side-Scrolling Shooting Game - C# Game Programming: For Serious Game Creation - page 367

is based on Radu Gruian's C++ Overhauser code ( http://www.codeproject.com/
KB/recipes/Overhauser.aspx —the Code Project website may require you to
register before it allows you to view the article. Registration is free. ).
public class Spline
{
List < Vector > _points ¼ new List < Vector > ();
double _segmentSize ¼ 0;
public void AddPoint(Vector point)
{
_points.Add(point);
_segmentSize ¼ 1 / (double)_points.Count;
}
private int LimitPoints(int point)
{
if(point < 0)
{
return 0;
}
else if (point > _points.Count - 1)
{
return _points.Count - 1;
}
else
{
return point;
}
}
// t ranges from 0 - 1
public Vector GetPositionOnLine(double t)
{
if (_points.Count < =1)
{
return new Vector(0,0,0);
}
// Get the segment of the line we're dealing with.
int interval ¼ (int)(t / _segmentSize);
// Get the points around the segment
int p0 ¼ LimitPoints(interval - 1);