colorLerp function

LerpFunction colorLerp(TrueColor color1, TrueColor color2)

Returns a function that interpolates between two colors.

The returned function accepts a parameter betwee 0 and 1, being 0 the first color and 1 the second color.

ex:

  final lerp = colorLerp(TrueColor(255, 0, 0), TrueColor(0, 255, 0));
  final color = lerp(0.5); // color is TrueColor(127, 127, 0)

Implementation

LerpFunction colorLerp(TrueColor color1, TrueColor color2) {
  TrueColor lerp(double t) {
    final value = t.clamp(0.0, 1.0);
    final r = (color1.r + (color2.r - color1.r) * value).round();
    final g = (color1.g + (color2.g - color1.g) * value).round();
    final b = (color1.b + (color2.b - color1.b) * value).round();

    return TrueColor(r, g, b);
  }

  return lerp;
}