/// <summary>Parses a track following object</summary>
/// <param name="FileName">The XML file to parse</param>
internal static TrainManager.TrackFollowingObject ParseTrackFollowingObject(string FileName, string ObjectPath)
{
// The current XML file to load
XDocument CurrentXML = XDocument.Load(FileName, LoadOptions.SetLineInfo);
string Path = System.IO.Path.GetDirectoryName(FileName);
// Check for null
if (CurrentXML.Root == null)
{
// We couldn't find any valid XML, so return false
throw new System.IO.InvalidDataException();
}
IEnumerable <XElement> DocumentElements = CurrentXML.Root.Elements("TrackFollowingObject");
// Check this file actually contains OpenBVE other train definition elements
if (DocumentElements == null || !DocumentElements.Any())
{
// We couldn't find any valid XML, so return false
throw new System.IO.InvalidDataException();
}
TrainManager.TrackFollowingObject Train = new TrainManager.TrackFollowingObject(TrainState.Pending);
foreach (XElement Element in DocumentElements)
{
ParseTrackFollowingObjectNode(Element, FileName, Path, ObjectPath, Train);
}
return(Train);
}
/// <summary>Parses a track following object</summary>
/// <param name="ObjectPath">Absolute path to the object folder of route data</param>
/// <param name="FileName">The XML file to parse</param>
internal static TrainManager.TrackFollowingObject ParseTrackFollowingObject(string ObjectPath, string FileName)
{
// The current XML file to load
XDocument CurrentXML = XDocument.Load(FileName, LoadOptions.SetLineInfo);
List <XElement> TfoElements = CurrentXML.XPathSelectElements("/openBVE/TrackFollowingObject").ToList();
// Check this file actually contains OpenBVE other train definition elements
if (!TfoElements.Any())
{
// We couldn't find any valid XML, so return false
throw new InvalidDataException();
}
TrainManager.TrackFollowingObject Train = new TrainManager.TrackFollowingObject(TrainState.Pending);
foreach (XElement Element in TfoElements)
{
ParseTrackFollowingObjectNode(ObjectPath, FileName, Element, Train);
}
return(Train);
}
internal TrackFollowingObjectAI(TrainManager.TrackFollowingObject train, TravelData[] data)
{
Train = train;
Data = data;
TimeLastProcessed = 0.0;
}
/// <summary>Parses a base track following object node</summary>
/// <param name="Element">The XElement to parse</param>
/// <param name="FileName">The filename of the containing XML file</param>
/// <param name="Path">The path of the containing XML file</param>
/// <param name="Train">The track following object to parse this node into</param>
private static void ParseTrackFollowingObjectNode(XElement Element, string FileName, string Path, string ObjectPath, TrainManager.TrackFollowingObject Train)
{
System.Globalization.CultureInfo Culture = System.Globalization.CultureInfo.InvariantCulture;
string TrainDirectory = string.Empty;
bool consistReversed = false;
List <Game.TravelData> Data = new List <Game.TravelData>();
foreach (XElement SectionElement in Element.Elements())
{
string Section = SectionElement.Name.LocalName;
switch (SectionElement.Name.LocalName.ToLowerInvariant())
{
case "stops":
ParseStopNode(SectionElement, FileName, Data);
break;
case "train":
foreach (XElement KeyNode in SectionElement.Elements())
{
string Key = KeyNode.Name.LocalName;
string Value = KeyNode.Value;
int LineNumber = ((IXmlLineInfo)KeyNode).LineNumber;
switch (Key.ToLowerInvariant())
{
case "directory":
{
string trainDirectory = OpenBveApi.Path.CombineDirectory(Path, Value);
if (!System.IO.Directory.Exists(trainDirectory))
{
trainDirectory = OpenBveApi.Path.CombineFile(Program.FileSystem.InitialTrainFolder, Value);
}
if (!System.IO.Directory.Exists(trainDirectory))
{
trainDirectory = OpenBveApi.Path.CombineFile(Program.FileSystem.TrainInstallationDirectory, Value);
}
if (!System.IO.Directory.Exists(trainDirectory))
{
trainDirectory = OpenBveApi.Path.CombineFile(ObjectPath, Value);
}
if (!System.IO.Directory.Exists(trainDirectory))
{
Interface.AddMessage(MessageType.Error, false, "Directory was not found in " + Key + " in " + Section + " at line " + LineNumber.ToString(Culture) + " in " + FileName);
}
else
{
TrainDirectory = trainDirectory;
}
}
break;
case "reversed":
int n;
NumberFormats.TryParseIntVb6(Value, out n);
if (n == 1 || Value.ToLowerInvariant() == "true")
{
consistReversed = true;
}
break;
}
}
break;
case "definition":
foreach (XElement KeyNode in SectionElement.Elements())
{
string Key = KeyNode.Name.LocalName;
string Value = KeyNode.Value;
int LineNumber = ((IXmlLineInfo)KeyNode).LineNumber;
switch (Key.ToLowerInvariant())
{
case "appearancetime":
if (Value.Length != 0 && !Interface.TryParseTime(Value, out Train.AppearanceTime))
{
Interface.AddMessage(MessageType.Error, false, "Value is invalid in " + Key + " in " + Section + " at line " + LineNumber.ToString(Culture) + " in " + FileName);
}
break;
case "appearancestartposition":
if (Value.Length != 0 && !NumberFormats.TryParseDoubleVb6(Value, out Train.AppearanceStartPosition))
{
Interface.AddMessage(MessageType.Error, false, "Value is invalid in " + Key + " in " + Section + " at line " + LineNumber.ToString(Culture) + " in " + FileName);
}
break;
case "appearanceendposition":
if (Value.Length != 0 && !NumberFormats.TryParseDoubleVb6(Value, out Train.AppearanceEndPosition))
{
Interface.AddMessage(MessageType.Error, false, "Value is invalid in " + Key + " in " + Section + " at line " + LineNumber.ToString(Culture) + " in " + FileName);
}
break;
case "leavetime":
if (Value.Length != 0 && !Interface.TryParseTime(Value, out Train.LeaveTime))
{
Interface.AddMessage(MessageType.Error, false, "Value is invalid in " + Key + " in " + Section + " at line " + LineNumber.ToString(Culture) + " in " + FileName);
}
break;
}
}
break;
}
}
if (!Data.Any() || string.IsNullOrEmpty(TrainDirectory))
{
return;
}
/*
* First check for a train.ai file- Functionally identical, but allows for differently configured AI
* trains not to show up as driveable
*/
string TrainData = OpenBveApi.Path.CombineFile(TrainDirectory, "train.ai");
if (!System.IO.File.Exists(TrainData))
{
// Check for the standard driveable train.dat
TrainData = OpenBveApi.Path.CombineFile(TrainDirectory, "train.dat");
}
string ExteriorFile = OpenBveApi.Path.CombineFile(TrainDirectory, "extensions.cfg");
if (!System.IO.File.Exists(TrainData) || !System.IO.File.Exists(ExteriorFile))
{
Interface.AddMessage(MessageType.Error, true, "The supplied train folder in TrackFollowingObject " + FileName + " did not contain a complete set of data.");
return;
}
TrainDatParser.ParseTrainData(TrainData, TextEncoding.GetSystemEncodingFromFile(TrainData), Train);
SoundCfgParser.ParseSoundConfig(TrainDirectory, Train);
Train.AI = new Game.TrackFollowingObjectAI(Train, Data);
UnifiedObject[] CarObjects = new UnifiedObject[Train.Cars.Length];
UnifiedObject[] BogieObjects = new UnifiedObject[Train.Cars.Length * 2];
UnifiedObject[] CouplerObjects = new UnifiedObject[Train.Cars.Length - 1];
ExtensionsCfgParser.ParseExtensionsConfig(System.IO.Path.GetDirectoryName(ExteriorFile), TextEncoding.GetSystemEncodingFromFile(ExteriorFile), ref CarObjects, ref BogieObjects, ref CouplerObjects, Train, true);
int currentBogieObject = 0;
for (int i = 0; i < Train.Cars.Length; i++)
{
if (CarObjects[i] == null)
{
// load default exterior object
string file = OpenBveApi.Path.CombineFile(Program.FileSystem.GetDataFolder("Compatibility"), "exterior.csv");
StaticObject so = ObjectManager.LoadStaticObject(file, System.Text.Encoding.UTF8, false);
if (so == null)
{
CarObjects[i] = null;
}
else
{
double sx = Train.Cars[i].Width;
double sy = Train.Cars[i].Height;
double sz = Train.Cars[i].Length;
so.ApplyScale(sx, sy, sz);
CarObjects[i] = so;
}
}
if (CarObjects[i] != null)
{
// add object
Train.Cars[i].LoadCarSections(CarObjects[i]);
}
//Load bogie objects
if (BogieObjects[currentBogieObject] != null)
{
Train.Cars[i].FrontBogie.LoadCarSections(BogieObjects[currentBogieObject]);
}
currentBogieObject++;
if (BogieObjects[currentBogieObject] != null)
{
Train.Cars[i].RearBogie.LoadCarSections(BogieObjects[currentBogieObject]);
}
currentBogieObject++;
}
// door open/close speed
foreach (var Car in Train.Cars)
{
if (Car.Specs.DoorOpenFrequency <= 0.0)
{
if (Car.Doors[0].OpenSound.Buffer != null & Car.Doors[1].OpenSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].OpenSound.Buffer);
Program.Sounds.LoadBuffer(Car.Doors[1].OpenSound.Buffer);
double a = Car.Doors[0].OpenSound.Buffer.Duration;
double b = Car.Doors[1].OpenSound.Buffer.Duration;
Car.Specs.DoorOpenFrequency = a + b > 0.0 ? 2.0 / (a + b) : 0.8;
}
else if (Car.Doors[0].OpenSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].OpenSound.Buffer);
double a = Car.Doors[0].OpenSound.Buffer.Duration;
Car.Specs.DoorOpenFrequency = a > 0.0 ? 1.0 / a : 0.8;
}
else if (Car.Doors[1].OpenSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].OpenSound.Buffer);
double b = Car.Doors[1].OpenSound.Buffer.Duration;
Car.Specs.DoorOpenFrequency = b > 0.0 ? 1.0 / b : 0.8;
}
else
{
Car.Specs.DoorOpenFrequency = 0.8;
}
}
if (Car.Specs.DoorCloseFrequency <= 0.0)
{
if (Car.Doors[0].CloseSound.Buffer != null & Car.Doors[1].CloseSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].CloseSound.Buffer);
Program.Sounds.LoadBuffer(Car.Doors[1].CloseSound.Buffer);
double a = Car.Doors[0].CloseSound.Buffer.Duration;
double b = Car.Doors[1].CloseSound.Buffer.Duration;
Car.Specs.DoorCloseFrequency = a + b > 0.0 ? 2.0 / (a + b) : 0.8;
}
else if (Car.Doors[0].CloseSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].CloseSound.Buffer);
double a = Car.Doors[0].CloseSound.Buffer.Duration;
Car.Specs.DoorCloseFrequency = a > 0.0 ? 1.0 / a : 0.8;
}
else if (Car.Doors[1].CloseSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].CloseSound.Buffer);
double b = Car.Doors[1].CloseSound.Buffer.Duration;
Car.Specs.DoorCloseFrequency = b > 0.0 ? 1.0 / b : 0.8;
}
else
{
Car.Specs.DoorCloseFrequency = 0.8;
}
}
const double f = 0.015;
const double g = 2.75;
Car.Specs.DoorOpenPitch = Math.Exp(f * Math.Tan(g * (Program.RandomNumberGenerator.NextDouble() - 0.5)));
Car.Specs.DoorClosePitch = Math.Exp(f * Math.Tan(g * (Program.RandomNumberGenerator.NextDouble() - 0.5)));
Car.Specs.DoorOpenFrequency /= Car.Specs.DoorOpenPitch;
Car.Specs.DoorCloseFrequency /= Car.Specs.DoorClosePitch;
/*
* Remove the following two lines, then the pitch at which doors play
* takes their randomized opening and closing times into account.
* */
Car.Specs.DoorOpenPitch = 1.0;
Car.Specs.DoorClosePitch = 1.0;
}
foreach (var Car in Train.Cars)
{
Car.FrontAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.RearAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.FrontBogie.FrontAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.FrontBogie.RearAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.RearBogie.FrontAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.RearBogie.RearAxle.Follower.TrackIndex = Data[0].RailIndex;
}
if (consistReversed)
{
Train.Reverse();
}
Train.PlaceCars(Data[0].StopPosition);
}
/// <summary>Parses a base track following object node</summary>
/// <param name="ObjectPath">Absolute path to the object folder of route data</param>
/// <param name="FileName">The filename of the containing XML file</param>
/// <param name="SectionElement">The XElement to parse</param>
/// <param name="Train">The track following object to parse this node into</param>
private static void ParseTrackFollowingObjectNode(string ObjectPath, string FileName, XElement SectionElement, TrainManager.TrackFollowingObject Train)
{
string Section = SectionElement.Name.LocalName;
string TrainDirectory = string.Empty;
bool ConsistReversed = false;
List <Game.TravelData> Data = new List <Game.TravelData>();
foreach (XElement KeyNode in SectionElement.Elements())
{
string Key = KeyNode.Name.LocalName;
int LineNumber = ((IXmlLineInfo)KeyNode).LineNumber;
switch (Key.ToLowerInvariant())
{
case "definition":
ParseDefinitionNode(FileName, KeyNode, Train);
break;
case "train":
ParseTrainNode(ObjectPath, FileName, KeyNode, ref TrainDirectory, ref ConsistReversed);
break;
case "points":
case "stops":
ParseTravelDataNodes(FileName, KeyNode, Data);
break;
default:
Interface.AddMessage(MessageType.Warning, false, $"Unsupported key {Key} encountered in {Section} at line {LineNumber.ToString(culture)} in {FileName}");
break;
}
}
if (Data.Count < 2)
{
Interface.AddMessage(MessageType.Error, false, $"There must be at least two points to go through in {FileName}");
return;
}
if (!(Data.First() is Game.TravelStopData) || !(Data.Last() is Game.TravelStopData))
{
Interface.AddMessage(MessageType.Error, false, $"The first and the last point to go through must be the \"Stop\" node in {FileName}");
return;
}
if (string.IsNullOrEmpty(TrainDirectory))
{
Interface.AddMessage(MessageType.Error, false, $"No train has been specified in {FileName}");
return;
}
/*
* First check for a train.ai file- Functionally identical, but allows for differently configured AI
* trains not to show up as drivable
*/
string TrainData = OpenBveApi.Path.CombineFile(TrainDirectory, "train.ai");
if (!File.Exists(TrainData))
{
// Check for the standard drivable train.dat
TrainData = OpenBveApi.Path.CombineFile(TrainDirectory, "train.dat");
}
string ExteriorFile = OpenBveApi.Path.CombineFile(TrainDirectory, "extensions.cfg");
if (!File.Exists(TrainData) || !File.Exists(ExteriorFile))
{
Interface.AddMessage(MessageType.Error, true, $"The supplied train folder in TrackFollowingObject {FileName} did not contain a complete set of data.");
return;
}
TrainDatParser.ParseTrainData(TrainData, TextEncoding.GetSystemEncodingFromFile(TrainData), Train);
SoundCfgParser.ParseSoundConfig(TrainDirectory, Train);
Train.AI = new Game.TrackFollowingObjectAI(Train, Data.ToArray());
UnifiedObject[] CarObjects = new UnifiedObject[Train.Cars.Length];
UnifiedObject[] BogieObjects = new UnifiedObject[Train.Cars.Length * 2];
UnifiedObject[] CouplerObjects = new UnifiedObject[Train.Cars.Length - 1];
bool[] VisibleFromInterior = new bool[Train.Cars.Length];
ExtensionsCfgParser.ParseExtensionsConfig(System.IO.Path.GetDirectoryName(ExteriorFile), TextEncoding.GetSystemEncodingFromFile(ExteriorFile), ref CarObjects, ref BogieObjects, ref CouplerObjects, ref VisibleFromInterior, Train, true);
int currentBogieObject = 0;
for (int i = 0; i < Train.Cars.Length; i++)
{
if (CarObjects[i] == null)
{
// load default exterior object
string file = OpenBveApi.Path.CombineFile(Program.FileSystem.GetDataFolder("Compatibility"), "exterior.csv");
StaticObject so;
Program.CurrentHost.LoadStaticObject(file, Encoding.UTF8, false, out so);
if (so == null)
{
CarObjects[i] = null;
}
else
{
so.ApplyScale(Train.Cars[i].Width, Train.Cars[i].Height, Train.Cars[i].Length);
CarObjects[i] = so;
}
}
if (CarObjects[i] != null)
{
// add object
Train.Cars[i].LoadCarSections(CarObjects[i], false);
}
//Load bogie objects
if (BogieObjects[currentBogieObject] != null)
{
Train.Cars[i].FrontBogie.LoadCarSections(BogieObjects[currentBogieObject], false);
}
currentBogieObject++;
if (BogieObjects[currentBogieObject] != null)
{
Train.Cars[i].RearBogie.LoadCarSections(BogieObjects[currentBogieObject], false);
}
currentBogieObject++;
}
// door open/close speed
foreach (var Car in Train.Cars)
{
if (Car.Specs.DoorOpenFrequency <= 0.0)
{
if (Car.Doors[0].OpenSound.Buffer != null & Car.Doors[1].OpenSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].OpenSound.Buffer);
Program.Sounds.LoadBuffer(Car.Doors[1].OpenSound.Buffer);
double a = Car.Doors[0].OpenSound.Buffer.Duration;
double b = Car.Doors[1].OpenSound.Buffer.Duration;
Car.Specs.DoorOpenFrequency = a + b > 0.0 ? 2.0 / (a + b) : 0.8;
}
else if (Car.Doors[0].OpenSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].OpenSound.Buffer);
double a = Car.Doors[0].OpenSound.Buffer.Duration;
Car.Specs.DoorOpenFrequency = a > 0.0 ? 1.0 / a : 0.8;
}
else if (Car.Doors[1].OpenSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].OpenSound.Buffer);
double b = Car.Doors[1].OpenSound.Buffer.Duration;
Car.Specs.DoorOpenFrequency = b > 0.0 ? 1.0 / b : 0.8;
}
else
{
Car.Specs.DoorOpenFrequency = 0.8;
}
}
if (Car.Specs.DoorCloseFrequency <= 0.0)
{
if (Car.Doors[0].CloseSound.Buffer != null & Car.Doors[1].CloseSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].CloseSound.Buffer);
Program.Sounds.LoadBuffer(Car.Doors[1].CloseSound.Buffer);
double a = Car.Doors[0].CloseSound.Buffer.Duration;
double b = Car.Doors[1].CloseSound.Buffer.Duration;
Car.Specs.DoorCloseFrequency = a + b > 0.0 ? 2.0 / (a + b) : 0.8;
}
else if (Car.Doors[0].CloseSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].CloseSound.Buffer);
double a = Car.Doors[0].CloseSound.Buffer.Duration;
Car.Specs.DoorCloseFrequency = a > 0.0 ? 1.0 / a : 0.8;
}
else if (Car.Doors[1].CloseSound.Buffer != null)
{
Program.Sounds.LoadBuffer(Car.Doors[0].CloseSound.Buffer);
double b = Car.Doors[1].CloseSound.Buffer.Duration;
Car.Specs.DoorCloseFrequency = b > 0.0 ? 1.0 / b : 0.8;
}
else
{
Car.Specs.DoorCloseFrequency = 0.8;
}
}
const double f = 0.015;
const double g = 2.75;
Car.Specs.DoorOpenPitch = Math.Exp(f * Math.Tan(g * (Program.RandomNumberGenerator.NextDouble() - 0.5)));
Car.Specs.DoorClosePitch = Math.Exp(f * Math.Tan(g * (Program.RandomNumberGenerator.NextDouble() - 0.5)));
Car.Specs.DoorOpenFrequency /= Car.Specs.DoorOpenPitch;
Car.Specs.DoorCloseFrequency /= Car.Specs.DoorClosePitch;
/*
* Remove the following two lines, then the pitch at which doors play
* takes their randomized opening and closing times into account.
* */
Car.Specs.DoorOpenPitch = 1.0;
Car.Specs.DoorClosePitch = 1.0;
}
foreach (var Car in Train.Cars)
{
Car.FrontAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.RearAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.FrontBogie.FrontAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.FrontBogie.RearAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.RearBogie.FrontAxle.Follower.TrackIndex = Data[0].RailIndex;
Car.RearBogie.RearAxle.Follower.TrackIndex = Data[0].RailIndex;
}
if (ConsistReversed)
{
Train.Reverse();
}
Train.PlaceCars(Data[0].Position);
}
/// <summary>
/// Function to parse TFO definition
/// </summary>
/// <param name="FileName">The filename of the containing XML file</param>
/// <param name="SectionElement">The XElement to parse</param>
/// <param name="Train">The track following object to parse this node into</param>
private static void ParseDefinitionNode(string FileName, XElement SectionElement, TrainManager.TrackFollowingObject Train)
{
string Section = SectionElement.Name.LocalName;
foreach (XElement KeyNode in SectionElement.Elements())
{
string Key = KeyNode.Name.LocalName;
string Value = KeyNode.Value;
int LineNumber = ((IXmlLineInfo)KeyNode).LineNumber;
switch (Key.ToLowerInvariant())
{
case "appearancetime":
if (Value.Any() && !Interface.TryParseTime(Value, out Train.AppearanceTime))
{
Interface.AddMessage(MessageType.Error, false, $"Value is invalid in {Key} in {Section} at line {LineNumber.ToString(culture)} in {FileName}");
}
break;
case "appearancestartposition":
if (Value.Any() && !NumberFormats.TryParseDoubleVb6(Value, out Train.AppearanceStartPosition))
{
Interface.AddMessage(MessageType.Error, false, $"Value is invalid in {Key} in {Section} at line {LineNumber.ToString(culture)} in {FileName}");
}
break;
case "appearanceendposition":
if (Value.Any() && !NumberFormats.TryParseDoubleVb6(Value, out Train.AppearanceEndPosition))
{
Interface.AddMessage(MessageType.Error, false, $"Value is invalid in {Key} in {Section} at line {LineNumber.ToString(culture)} in {FileName}");
}
break;
case "leavetime":
if (Value.Any() && !Interface.TryParseTime(Value, out Train.LeaveTime))
{
Interface.AddMessage(MessageType.Error, false, $"Value is invalid in {Key} in {Section} at line {LineNumber.ToString(culture)} in {FileName}");
}
break;
default:
Interface.AddMessage(MessageType.Warning, false, $"Unsupported key {Key} encountered in {Section} at line {LineNumber.ToString(culture)} in {FileName}");
break;
}
}
}