/// <summary>
/// Loads the traffic volume setup from the given XML file
/// </summary>
/// <param name="xd">XmlDocument to parse</param>
/// <param name="nodesList">List of all existing LineNodes</param>
/// <param name="lf">LoadingForm for status updates</param>
public void LoadFromFile(XmlDocument xd, List<LineNode> nodesList, LoadingForm.LoadingForm lf)
{
lf.SetupLowerProgess("Parsing XML...", 3);
// clear everything first
_trafficVolumes.Clear();
_startPoints.Clear();
_destinationPoints.Clear();
// parse save file version (currently not needed, but probably in future)
int saveVersion = 0;
XmlNode mainNode = xd.SelectSingleNode("//CityTrafficSimulator");
XmlNode saveVersionNode = mainNode.Attributes.GetNamedItem("saveVersion");
if (saveVersionNode != null)
saveVersion = Int32.Parse(saveVersionNode.Value);
else
saveVersion = 0;
// Load start points:
lf.StepLowerProgress();
// get corresponding XML nodes
XmlNodeList xnlStartNodes = xd.SelectNodes("//CityTrafficSimulator/TrafficVolumes/StartPoints/BunchOfNodes");
foreach (XmlNode aXmlNode in xnlStartNodes)
{
// Deserialize each node
TextReader tr = new StringReader(aXmlNode.OuterXml);
XmlSerializer xs = new XmlSerializer(typeof(BunchOfNodes));
BunchOfNodes bof = (BunchOfNodes)xs.Deserialize(tr);
bof.RecoverFromLoad(saveVersion, nodesList);
_startPoints.Add(bof);
}
// Load destination points:
lf.StepLowerProgress();
// get corresponding XML nodes
XmlNodeList xnlDestinationNodes = xd.SelectNodes("//CityTrafficSimulator/TrafficVolumes/DestinationPoints/BunchOfNodes");
foreach (XmlNode aXmlNode in xnlDestinationNodes)
{
// Deserialize each node
TextReader tr = new StringReader(aXmlNode.OuterXml);
XmlSerializer xs = new XmlSerializer(typeof(BunchOfNodes));
BunchOfNodes bof = (BunchOfNodes)xs.Deserialize(tr);
bof.RecoverFromLoad(saveVersion, nodesList);
// ensure that no hashcode is assigned twice
BunchOfNodes.hashcodeIndex = Math.Max(bof.hashcode + 1, BunchOfNodes.hashcodeIndex);
_destinationPoints.Add(bof);
}
// Load traffic volumes:
lf.StepLowerProgress();
// get corresponding XML nodes
XmlNodeList xnlTrafficVolumes = xd.SelectNodes("//CityTrafficSimulator/TrafficVolumes/TrafficVolume");
foreach (XmlNode aXmlNode in xnlTrafficVolumes)
{
// Deserialize each node
TextReader tr = new StringReader(aXmlNode.OuterXml);
XmlSerializer xs = new XmlSerializer(typeof(TrafficVolume));
TrafficVolume tv = (TrafficVolume)xs.Deserialize(tr);
tv.RecoverFromLoad(saveVersion, startPoints, destinationPoints);
if (tv.startNodes != null && tv.destinationNodes != null)
{
_trafficVolumes.Add(tv);
tv.VehicleSpawned += new TrafficVolume.VehicleSpawnedEventHandler(newTV_VehicleSpawned);
}
else
{
lf.Log("Error during traffic volume deserialization: Could not dereference start-/end nodes. Traffic volume was dismissed.");
}
}
OnStartPointsChanged(new StartPointsChangedEventArgs());
OnDestinationPointsChanged(new DestinationPointsChangedEventArgs());
}