lerpDouble function

double lerpDouble (num a, num b, double t)

Linearly interpolate between two numbers.

Implementation

double lerpDouble(num a, num b, double t) {
  if (a == null && b == null)
    return null;
  a ??= 0.0;
  b ??= 0.0;
  return a + (b - a) * t as double;
}