const double gearRatioMin = 0.25;
const double gearRatioMax = 5.75;
const int gearRatioEmptyRaw = 0;
const int gearRatioMinRaw = 1;
const int gearRatioMaxRaw = 255;

const double gearRatioStep =
    (gearRatioMax - gearRatioMin) / (gearRatioMaxRaw - gearRatioMinRaw);

int encodeGearRatioByte(double value) {
  if (value <= 0) {
    return gearRatioEmptyRaw;
  }
  final clamped = value.clamp(gearRatioMin, gearRatioMax);
  final scaled = ((clamped - gearRatioMin) / gearRatioStep).round();
  return (gearRatioMinRaw + scaled)
      .clamp(gearRatioMinRaw, gearRatioMaxRaw)
      .toInt();
}

double decodeGearRatioByte(int raw) {
  if (raw <= gearRatioEmptyRaw) {
    return 0;
  }
  final clamped = raw.clamp(gearRatioMinRaw, gearRatioMaxRaw).toInt();
  return gearRatioMin + (clamped - gearRatioMinRaw) * gearRatioStep;
}

double quantizeGearRatio(double value) {
  return decodeGearRatioByte(encodeGearRatioByte(value));
}