lerp method

FlyTrackingToken lerp(FlyTrackingToken other, double t)

Linear interpolation between two tokens

Implementation

FlyTrackingToken lerp(FlyTrackingToken other, double t) {
  final result = <String, double>{};
  final allKeys = {..._allValues.keys, ...other._allValues.keys};

  for (final key in allKeys) {
    final valueA = _allValues[key];
    final valueB = other._allValues[key];
    final numA = valueA ?? 0.0;
    final numB = valueB ?? 0.0;
    result[key] = numA + (numB - numA) * t;
  }

  return FlyTrackingToken(
    tighter: result['tighter']!,
    tight: result['tight']!,
    normal: result['normal']!,
    wide: result['wide']!,
    wider: result['wider']!,
    widest: result['widest']!,
    extras: Map.fromEntries(
      result.entries.where(
        (e) => ![
          'tighter',
          'tight',
          'normal',
          'wide',
          'wider',
          'widest',
        ].contains(e.key),
      ),
    ),
  );
}