/// <summary>
/// Läd eine XML Datei und versucht daraus den gespeicherten Zustand wiederherzustellen
/// </summary>
/// <param name="xd">XmlDocument mit den zu ladenden Daten</param>
/// <param name="lf">LoadingForm für Statusinformationen</param>
public List<Auftrag> LoadFromFile(XmlDocument xd, LoadingForm.LoadingForm lf)
{
lf.SetupLowerProgess("Parsing XML...", 3);
List<Auftrag> toReturn = new List<Auftrag>();
int saveVersion = 0;
// erstma alles vorhandene löschen
nodes.Clear();
connections.Clear();
intersections.Clear();
_networkLayers.Clear();
XmlNode mainNode = xd.SelectSingleNode("//CityTrafficSimulator");
XmlNode saveVersionNode = mainNode.Attributes.GetNamedItem("saveVersion");
if (saveVersionNode != null)
saveVersion = Int32.Parse(saveVersionNode.Value);
else
saveVersion = 0;
XmlNode titleNode = xd.SelectSingleNode("//CityTrafficSimulator/Layout/title");
if (titleNode != null)
{
m_title = titleNode.InnerText;
}
XmlNode infoNode = xd.SelectSingleNode("//CityTrafficSimulator/Layout/infoText");
if (infoNode != null)
{
_infoText = infoNode.InnerText;
}
lf.StepLowerProgress();
// entsprechenden Node auswählen
XmlNodeList xnlLineNode = xd.SelectNodes("//CityTrafficSimulator/Layout/LineNode");
foreach (XmlNode aXmlNode in xnlLineNode)
{
// Node in einen TextReader packen
TextReader tr = new StringReader(aXmlNode.OuterXml);
// und Deserializen
XmlSerializer xs = new XmlSerializer(typeof(LineNode));
LineNode ln = (LineNode)xs.Deserialize(tr);
// ab in die Liste
nodes.Add(ln);
}
lf.StepLowerProgress();
// entsprechenden Node auswählen
XmlNodeList xnlNetworkLayer = xd.SelectNodes("//CityTrafficSimulator/Layout/NetworkLayer");
foreach (XmlNode aXmlNode in xnlNetworkLayer)
{
// Node in einen TextReader packen
TextReader tr = new StringReader(aXmlNode.OuterXml);
// und Deserializen
XmlSerializer xs = new XmlSerializer(typeof(NetworkLayer));
NetworkLayer nl = (NetworkLayer)xs.Deserialize(tr);
// ab in die Liste
_networkLayers.Add(nl);
}
lf.StepLowerProgress();
// entsprechenden NodeConnections auswählen
XmlNodeList xnlNodeConnection = xd.SelectNodes("//CityTrafficSimulator/Layout/NodeConnection");
foreach (XmlNode aXmlNode in xnlNodeConnection)
{
// Node in einen TextReader packen
TextReader tr = new StringReader(aXmlNode.OuterXml);
// und Deserializen
XmlSerializer xs = new XmlSerializer(typeof(NodeConnection));
NodeConnection ln = (NodeConnection)xs.Deserialize(tr);
// ab in die Liste
connections.Add(ln);
}
lf.SetupLowerProgess("Restoring LineNodes...", _nodes.Count);
// Nodes wiederherstellen
foreach (LineNode ln in _nodes)
{
ln.RecoverFromLoad(saveVersion, _nodes);
lf.StepLowerProgress();
}
lf.SetupLowerProgess("Restoring NetworkLayers...", _networkLayers.Count);
// restore NetworkLayers
if (saveVersion >= 6)
{
foreach (NetworkLayer nl in _networkLayers)
{
foreach (int hash in nl._nodeHashes)
{
LineNode tmp = GetLineNodeByHash(nodes, hash);
if (tmp != null)
tmp.networkLayer = nl;
}
nl.TitleChanged += new NetworkLayer.TitleChangedEventHandler(nl_TitleChanged);
nl.VisibleChanged +=new NetworkLayer.VisibleChangedEventHandler(nl_VisibleChanged);
}
}
else
{
AddNetworkLayer("Layer 1", true);
foreach (LineNode ln in _nodes)
{
ln.networkLayer = _networkLayers[0];
}
}
InvokeNetworkLayersChanged(new NetworkLayersChangedEventArgs(NetworkLayersChangedEventArgs.InvalidationLevel.COLLECTION_CHANGED));
lf.SetupLowerProgess("Restoring NodeConnections...", _connections.Count);
// LineNodes wiederherstellen
foreach (NodeConnection nc in _connections)
{
nc.RecoverFromLoad(saveVersion, nodes);
TellNodesTheirConnection(nc);
nc.lineSegment = new LineSegment(0, nc.startNode.position, nc.startNode.outSlopeAbs, nc.endNode.inSlopeAbs, nc.endNode.position);
lf.StepLowerProgress();
}
lf.SetupLowerProgess("Calculate Intersections and Line Change Points...", _connections.Count);
// Intersections wiederherstellen
foreach (NodeConnection nc in _connections)
{
UpdateNodeConnection(nc);
lf.StepLowerProgress();
}
// Fahraufträge laden
// entsprechenden Node auswählen
if (saveVersion < 5)
{
XmlNodeList xnlAuftrag = xd.SelectNodes("//CityTrafficSimulator/Traffic/Auftrag");
lf.SetupLowerProgess("Load Old Traffic Volume...", 2 * xnlAuftrag.Count);
foreach (XmlNode aXmlNode in xnlAuftrag)
{
// Node in einen TextReader packen
TextReader tr = new StringReader(aXmlNode.OuterXml);
// und Deserializen
XmlSerializer xs = new XmlSerializer(typeof(Auftrag));
Auftrag ln = (Auftrag)xs.Deserialize(tr);
// in alten Dateien wurde das Feld häufigkeit statt trafficDensity gespeichert. Da es dieses Feld heute nicht mehr gibt, müssen wir konvertieren:
if (saveVersion < 1)
{
// eigentlich wollte ich hier direkt mit aXmlNode arbeiten, das hat jedoch komische Fehler verursacht (SelectSingleNode) wählt immer den gleichen aus)
// daher der Umweg über das neue XmlDocument.
XmlDocument doc = new XmlDocument();
XmlElement elem = doc.CreateElement("Auftrag");
elem.InnerXml = aXmlNode.InnerXml;
doc.AppendChild(elem);
XmlNode haeufigkeitNode = doc.SelectSingleNode("//Auftrag/häufigkeit");
if (haeufigkeitNode != null)
{
ln.trafficDensity = 72000 / Int32.Parse(haeufigkeitNode.InnerXml);
}
haeufigkeitNode = null;
}
// ab in die Liste
toReturn.Add(ln);
lf.StepLowerProgress();
}
// Nodes wiederherstellen
foreach (Auftrag a in toReturn)
{
a.RecoverFromLoad(saveVersion, nodes);
lf.StepLowerProgress();
}
}
return toReturn;
}
/// <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());
}
/// <summary>
/// Läd eine XML Datei und versucht daraus den gespeicherten Zustand wiederherzustellen
/// </summary>
/// <param name="xd">XmlDocument mit den zu ladenden Daten</param>
/// <param name="nodesList">Liste von allen existierenden LineNodes</param>
/// <param name="lf">LoadingForm für Statusinformationen</param>
public void LoadFromFile(XmlDocument xd, List<LineNode> nodesList, LoadingForm.LoadingForm lf)
{
lf.SetupLowerProgess("Parsing XML...", 1);
int saveVersion = 0;
// erstma alles vorhandene löschen
foreach (TimelineGroup tg in _groups)
{
foreach (TimelineEntry te in tg.entries)
{
// Löschen vorbereiten
te.Dispose();
}
tg.entries.Clear();
}
_groups.Clear();
XmlNode mainNode = xd.SelectSingleNode("//CityTrafficSimulator");
XmlNode saveVersionNode = mainNode.Attributes.GetNamedItem("saveVersion");
if (saveVersionNode != null)
saveVersion = Int32.Parse(saveVersionNode.Value);
else
saveVersion = 0;
lf.StepLowerProgress();
if (saveVersion >= 4)
{
XmlNode xnlTrafficLights = xd.SelectSingleNode("//CityTrafficSimulator/TrafficLights");
XmlNode cycleTimeNode = xnlTrafficLights.Attributes.GetNamedItem("cycleTime");
if (cycleTimeNode != null)
maxTime = Double.Parse(cycleTimeNode.Value);
}
else
{
maxTime = 50;
}
if (saveVersion >= 3)
{
// entsprechenden Node auswählen
XmlNodeList xnlLineNode = xd.SelectNodes("//CityTrafficSimulator/TrafficLights/TimelineGroup");
Type[] extraTypes = { typeof(TrafficLight) };
foreach (XmlNode aXmlNode in xnlLineNode)
{
// Node in einen TextReader packen
TextReader tr = new StringReader(aXmlNode.OuterXml);
// und Deserializen
XmlSerializer xs = new XmlSerializer(typeof(TimelineGroup), extraTypes);
TimelineGroup tg = (TimelineGroup)xs.Deserialize(tr);
// ab in die Liste
tg.GroupChanged += new TimelineGroup.GroupChangedEventHandler(tg_GroupChanged);
_groups.Add(tg);
}
}
else
{
TimelineGroup unsortedGroup = new TimelineGroup("Unsorted Signals", false);
// entsprechenden Node auswählen
XmlNodeList xnlLineNode = xd.SelectNodes("//CityTrafficSimulator/Layout/LineNode/tLight");
foreach (XmlNode aXmlNode in xnlLineNode)
{
// der XMLNode darf nicht tLight heißen, sondern muss TrafficLight heißen. Das müssen wir mal anpassen:
XmlDocument doc = new XmlDocument();
XmlElement elem = doc.CreateElement("TrafficLight");
elem.InnerXml = aXmlNode.InnerXml;
doc.AppendChild(elem);
// so, das war nicht wirklich hübsch und schnell, aber es funktioniert ;)
// Node in einen TextReader packen
StringReader tr = new StringReader(doc.InnerXml);
// und Deserializen
XmlSerializer xs = new XmlSerializer(typeof(TrafficLight));
TrafficLight tl = (TrafficLight)xs.Deserialize(tr);
XmlNode pnhNode = doc.SelectSingleNode("//TrafficLight/parentNodeHash");
tl.parentNodeHash = Int32.Parse(pnhNode.InnerXml);
unsortedGroup.AddEntry(tl);
}
// ab in die Liste
_groups.Add(unsortedGroup);
}
lf.SetupLowerProgess("Restoring Signals...", _groups.Count);
// Abschließende Arbeiten: Referenzen auflösen
foreach (TimelineGroup tg in _groups)
{
tg.RecoverFromLoad(saveVersion, nodesList);
lf.StepLowerProgress();
}
OnGroupsChanged();
}
