Copy old project - initial state

lib/gnss_sentences/gnrmc.dart

@@ -0,0 +1,38 @@
+import 'package:nmea/nmea.dart';
+
+class Gnrmc extends TalkerSentence {
+  static const String id = "GNRMC";
+  Gnrmc({required super.raw});
+
+  @override
+  bool get valid => super.valid && fields.length == 14;
+
+  String get messageId => fields[0];
+  String get utcOfPositionFix => fields[1];
+  String get Status => fields[2];
+  double get latitude => _getCoordinateFromGpsLatitude(fields[3]);
+  String get latitudeDirection => fields[4];
+  double get longitude => _getCoordinateFromGpsLongitude(fields[5]);
+  String get longitudeDirection => fields[6];
+  double get speedOverGroundKnots => double.parse(fields[7]);
+  double get courseOverGround => double.parse(fields[8]);
+  String get date => fields[9];
+  double get magneticVariation => double.parse(fields[10]);
+  String get magneticVariationDirection => fields[11];
+  String get positioningSystemModeIndicator => fields[12];
+
+  double _getCoordinateFromGpsLongitude(String coordinate) {
+    double result =
+        double.parse("${coordinate[0]}${coordinate[1]}${coordinate[2]}") +
+            double.parse(coordinate.substring(3)) / 60;
+
+    return result;
+  }
+
+  double _getCoordinateFromGpsLatitude(String coordinate) {
+    double result = double.parse("${coordinate[0]}${coordinate[1]}") +
+        double.parse(coordinate.substring(2)) / 60;
+
+    return result;
+  }
+}