private bool DistanceCheck(DirectionRootObject direction, Path path)
{
//If google apis can't find a charging station it defaults back to your geolocation
//If the ditance between the start and the last waypoint is greater than the distance between
//the start and the end stop looping.
var currentRoute = direction.routes[direction.routes.Count - 1];
var firstLeg = currentRoute.legs[0];
var lastLeg = currentRoute.legs[currentRoute.legs.Count - 1];
var currentWaypoint = path.Waypoints[path.Waypoints.Count - 1];
var startLat = firstLeg.start_location.lat;
var startLng = firstLeg.start_location.lng;
var wayPointLat = currentWaypoint.Latitude;
var wayPointLng = currentWaypoint.Longitude;
var endLat = lastLeg.end_location.lat;
var endLng = lastLeg.end_location.lng;
var startToEnd = DistanceBetweenCoords(startLat, startLng, endLat, endLng, 'M');
var startToWaypoint = DistanceBetweenCoords(startLat, startLng, wayPointLat, wayPointLng, 'M');
//Multiplier just to be sure
if (startToWaypoint > (startToEnd * 5))
{
return(false);
}
return(true);
}
private async Task <DirectionRootObject> Google_GetDirection(Path path)
{
DirectionRootObject rootObject = null;
string request = GetRequestString(path);
using (var client = new HttpClient())
{
var responseTask = client.GetAsync(request);
responseTask.Wait();
//To store result of web api response.
var result = responseTask.Result;
if (result.IsSuccessStatusCode)
{
var json = await result.Content.ReadAsStringAsync();
var settings = new JsonSerializerSettings();
try
{
rootObject = JsonConvert.DeserializeObject <DirectionRootObject>(json, settings);
}
catch (Exception e)
{
throw new Exception(e.Message);
}
}
}
return(rootObject);
}
private async Task <bool> EvaluateDirection(DirectionRootObject direction, Path path)
{
try
{
if (path.IgnoreRange == true)
{
path.Arrived = true;
return(false);
}
if (path.Waypoints.Count > 0 && DistanceCheck(direction, path) == false)
{
path.Arrived = false;
return(false);
}
var stepList = new List <Step>();
var currentRoute = direction.routes[direction.routes.Count - 1];
var currentLeg = currentRoute.legs[currentRoute.legs.Count - 1];
foreach (var step in currentLeg.steps)
{
stepList.Add(step);
if ((path.CurrentRangeM - step.distance.value) <= 0)
{
return(await FindChargingStationOnStep(stepList, path));
}
else
{
path.CurrentRangeM -= step.distance.value;
}
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
path.Arrived = true;
return(false);
}
