protected virtual string BuildMapPath(IList <TrackCoordinate> trackCoordinates, int resolution)
{
string pathParameter = String.Empty;
if (trackCoordinates != null && trackCoordinates.Count > 0)
{
LapSegment lapSegment = null;
IList <LapSegment> lapSegments = new List <LapSegment>();
string throttlePathHeader = "&path=color:green|weight:2";
string brakePathHeader = "&path=color:red|weight:2";
string coastPathHeader = "&path=color:yellow|weight:2";
string currentState = "";
var firsttrackCoordinate = trackCoordinates.FirstOrDefault();
lapSegment = new LapSegment();
if (firsttrackCoordinate.Throttle > 0 && firsttrackCoordinate.Throttle > firsttrackCoordinate.Brake)
{
currentState = "Throttle";
lapSegment.Header = throttlePathHeader;
}
else if (firsttrackCoordinate.Brake > 0 && firsttrackCoordinate.Brake > firsttrackCoordinate.Throttle)
{
currentState = "Brake";
lapSegment.Header = brakePathHeader;
}
else
{
currentState = "Coast";
lapSegment.Header = coastPathHeader;
}
foreach (TrackCoordinate trackCoordinate in trackCoordinates.Where((x, i) => i % resolution == 0))
{
lapSegment.Points.Add(trackCoordinate);
if (trackCoordinate.Throttle > 0 && trackCoordinate.Throttle > trackCoordinate.Brake)
{
if (currentState != "Throttle")
{
lapSegment.EncodedToken = GoogleMapHelper.EncodeCoordinates(lapSegment.Points);
lapSegments.Add(lapSegment);
lapSegment = new LapSegment()
{
Header = throttlePathHeader
};
lapSegment.Points.Add(trackCoordinate);
currentState = "Throttle";
}
}
else if (trackCoordinate.Brake > 0 && trackCoordinate.Brake > trackCoordinate.Throttle)
{
if (currentState != "Brake")
{
lapSegment.EncodedToken = GoogleMapHelper.EncodeCoordinates(lapSegment.Points);
lapSegments.Add(lapSegment);
lapSegment = new LapSegment()
{
Header = brakePathHeader
};
lapSegment.Points.Add(trackCoordinate);
currentState = "Brake";
}
}
else
{
if (currentState != "Coast")
{
lapSegment.EncodedToken = GoogleMapHelper.EncodeCoordinates(lapSegment.Points);
lapSegments.Add(lapSegment);
lapSegment = new LapSegment()
{
Header = coastPathHeader
};
lapSegment.Points.Add(trackCoordinate);
currentState = "Coast";
}
}
}
// add the last segment
lapSegment.EncodedToken = GoogleMapHelper.EncodeCoordinates(lapSegment.Points);
lapSegments.Add(lapSegment);
StringBuilder sb = new StringBuilder();
foreach (LapSegment encodedLapSegment in lapSegments)
{
sb.Append(encodedLapSegment.Header);
sb.Append("|enc:");
sb.Append(encodedLapSegment.EncodedToken);
}
pathParameter = sb.ToString();
}
return(pathParameter);
}
