Update:

• Added new optional Spline.cs with expanded functionality, includes arc length calculations, tangent sampling, uniform tangent sampling, closed or open (looping or not) sampling, and uniform sampling,

UnitySpline

Once upon a time, there was a spline. A spline who was only 60 lines.

Unity had none, and that's no fun

So I went and added mine.

It does numbers and colors and vectors just fine

But don't get too wild when using unsigned

I made only one weight scheme, So please don't hate me

If your output becomes four-billion, two-hundred ninety-four million, nine-hundred sixty-seven thousand, two-hundred ninety and five

Requirements

Needs .NET 4.x for generic reasons To enable on your project, navigate to

File > Project Settings > Player > Other Settings > Configuration > Api Compatibility Level*

and then select .NET 4.x

Usage

Interpolate a rainbow:

private Spline<Color> rainbow = new Spline<Color>(new Color[]{Color.red, 
                                                              new Color(255.0f / 255.0f, 127.0f / 255.0f, 0), 
                                                              Color.yellow, 
                                                              Color.green, 
                                                              Color.blue, 
                                                              new Color(75.0f / 255.0f, 0.0f, 130.0f / 255.0f),
                                                              new Color(139.0f / 255.0f , 0, 255.0f / 255.0f)});

Make it a looped spline by readding the first element:

rainbow.AddPoint(Color.Red);

Get a point on the spline, given a value between 0 and 1

Color newColor = rainbow.GetPoint(0.5f);