private static Vector GetClosestRoadPoint(Vector location)
{
var road = GPSSystem.GetRoad(location);
if (road == null)
{
throw new ArgumentException("Location is not on a road!");
}
return(GPSSystem.CalculateDistance(location, road.Start) <
GPSSystem.CalculateDistance(location, road.End)
? road.Start
: road.End);
}