lerpDouble method

double? lerpDouble(
  1. num? a,
  2. num? b,
  3. double t
)

Implementation

double? lerpDouble(num? a, num? b, double t) {
  if (a == b || (a?.isNaN ?? false) && (b?.isNaN ?? false)) {
    return a?.toDouble();
  }
  a ??= 0.0;
  b ??= 0.0;
  assert(
      a.isFinite, 'Cannot interpolate between finite and non-finite values');
  assert(
      b.isFinite, 'Cannot interpolate between finite and non-finite values');
  assert(t.isFinite, 't must be finite when interpolating between values');
  return a * (1.0 - t) + b * t;
}