todos-contra-el-fuego-mobile/lib/models/basicLocation.dart

class BasicLocation implements Comparable<BasicLocation> {

//  static BasicLocation noLocation = new BasicLocation(lat: 0.0, lon: 0.0);

  BasicLocation({required this.lat, required this.lon, this.description});

  BasicLocation.fromJson(Map<String, dynamic> json)
      : lat = (json['lat'] as num).toDouble(),
        lon = (json['lon'] as num).toDouble(),
        description = json['description'] as String?;
  final double lat;
  final double lon;
  final String? description;

  @override
  int compareTo(BasicLocation other) {
    return lat == other.lat && lon == other.lon ? 1 : 0;
  }

  @override
  bool operator ==(Object o) => o is BasicLocation && o.lat == lat && o.lon == lon;

  @override
  int get hashCode {
    int hash = 1;
    hash = hash * 17 + lat.hashCode;
    hash = hash * 31 + lon.hashCode;
    return hash;
  }

  Map<String, dynamic> toJson() => <String, dynamic>{
        'lat': lat,
        'lon': lon,
        'description': description,
      };
}