var UNKNOWN_ALTITUDE_KM = -10;

function WaypointType() {
}
WaypointType.Arrive = 0;
WaypointType.BearLeft = 1;
WaypointType.BearRight = 2;
WaypointType.TurnAround = 3;
WaypointType.TurnLeft = 4;
WaypointType.TurnRight = 5;
WaypointType.Reserved500 = 6;
WaypointType.Reserved400 = 7;
WaypointType.Reserved300 = 8;
WaypointType.Reserved200 = 9;
WaypointType.Reserved100 = 10;
WaypointType.Start = 11;  //11
WaypointType.Finish = 12;               //12
WaypointType.StartInterval = 13;
WaypointType.FinishInterval = 14;
WaypointType.Continue = 15;              //15
WaypointType.Summit = 16;
WaypointType.FeedZone = 17;
WaypointType.Announcement = 18;



function ClientWaypoint() {
    this.Longitude = 0;
    this.Latitude = 0;

    this.Timestamp = new Date(0);
    this.AltitudeKM = UNKNOWN_ALTITUDE_KM;
    this.Heading = -1;
    this.WaypointType = WaypointType.Continue;
    this.TextDescription = "";
    this.ElapsedDistanceKM = 0.0;

    //   this.toString = function() {
    //       var alt = "";
    //       if (this.Altitude != UNKNOWN_ALTITUDE_KM)
    //           alt = ' Alt:' + KilosToFeet(this.Altitude).toFixed(1) + 'ft';
    //             
    //       var status = 'Time: ' + this.Timestamp.toString() + ' Lat:' + this.Latitude.toFixed(5) + ' Lon:' + this.Longitude.toFixed(5) + alt + ' ElapsedDist:' + KilosToMiles(this.ElapsedDistanceKM).toFixed(3) +'mi';
    //       if ( this.TextDescription )
    //           status += ' Desc:' + this.TextDescription 
    //              
    //       if (this.AudioDescriptionURL)     
    //           status += ' AudioURL:' + this.AudioDescriptionURL; 
    //   }

    this.Position = function () { return new Position(this.Longitude, this.Latitude) }
    this.DistanceTo = function (target) {
        return this.Position().DistanceTo(target.Position());
    }
    this.BearingTo = function (target) {
        return this.Position().BearingTo(target.Position());
    }
    this.TranslateTo = function (brng, d) {
        return this.Position().TranslateTo(brng, d);
    }
}