public List <Vector3> MakeSpline(List <Vector3> controlPoints, bool closedLoop)
{
ControlPoints = controlPoints;
List <Vector3> points = new List <Vector3>(); //All points of the spline
int closedAdjustment = closedLoop ? 0 : 1;
// First for loop goes through each individual control point and connects it to the next, so 0-1, 1-2, 2-3 and so on
for (int i = 0; i < controlPoints.Count - closedAdjustment; i++)
{
//The 4 points on my catmull spline
Vector3 point1, point2, point3, point4;
//The two points to interpolate between
point2 = controlPoints[i];
point3 = (closedLoop == true && i == controlPoints.Count - 1) ? controlPoints[0] : controlPoints[i + 1];
//The first handle/anchor thingy
if (i == 0 && !closedLoop)
{
//If its the first point, make the point up
point1 = point3 - point2;
}
else
{
//This will loop back round
point1 = controlPoints[((i - 1) + controlPoints.Count) % controlPoints.Count];
}
//The second handle/anchor thingy
if (i >= controlPoints.Count - 2 && !closedLoop)
{
//If we're on the last point, make it up
point4 = point3 - point2;
}
else
{
point4 = controlPoints[(i + 2) % controlPoints.Count];
}
float pointStep = 1.0f / CurveResolution;
if (i == controlPoints.Count - 1 && closedLoop)
{
pointStep = 1.0f / (CurveResolution - 1);
}
// Second loop actually creates the spline for this particular segment
for (int j = 0; j < CurveResolution; j++)
{
float t = j * pointStep;
Vector3 position = CatmullRom.GetCatmullRomPosition(point1, point2, point3, point4, t, out var tangent, alpha);
points.Add(position);
}
}
return(SplitCurveEvenly(points));
}