public override bool LoadObject(string path, Encoding Encoding, out UnifiedObject unifiedObject)
{
try
{
if (path.ToLowerInvariant().EndsWith(".l3dobj", StringComparison.InvariantCultureIgnoreCase))
{
unifiedObject = Ls3DObjectParser.ReadObject(path, Vector3.Zero);
}
else
{
unifiedObject = Ls3DGrpParser.ReadObject(path, Encoding, Vector3.Zero);
}
}
catch
{
unifiedObject = null;
return(false);
}
return(true);
}
internal static AnimatedObjectCollection ReadObject(string FileName, System.Text.Encoding Encoding, Vector3 Rotation)
{
XmlDocument currentXML = new XmlDocument();
AnimatedObjectCollection Result = new AnimatedObjectCollection(Plugin.currentHost)
{
Objects = new AnimatedObject[0]
};
try
{
currentXML.Load(FileName);
}
catch (Exception ex)
{
//The XML is not strictly valid
string[] Lines = File.ReadAllLines(FileName);
using (var stringReader = new StringReader(Lines[0]))
{
var settings = new XmlReaderSettings {
ConformanceLevel = ConformanceLevel.Fragment
};
using (var xmlReader = XmlReader.Create(stringReader, settings))
{
if (xmlReader.Read())
{
//Attempt to find the text encoding and re-read the file
var result = xmlReader.GetAttribute("encoding");
if (result != null)
{
var e = System.Text.Encoding.GetEncoding(result);
Lines = File.ReadAllLines(FileName, e);
//Turf out the old encoding, as our string array should now be UTF-8
Lines[0] = "<?xml version=\"1.0\"?>";
}
}
}
}
for (int i = 0; i < Lines.Length; i++)
{
while (Lines[i].IndexOf("\"\"", StringComparison.Ordinal) != -1)
{
//Loksim parser tolerates multiple quotes, strict XML does not
Lines[i] = Lines[i].Replace("\"\"", "\"");
}
while (Lines[i].IndexOf(" ", StringComparison.Ordinal) != -1)
{
//Replace double-spaces with singles
Lines[i] = Lines[i].Replace(" ", " ");
}
}
bool tryLoad = false;
try
{
//Horrible hack: Write out our string array to a new memory stream, then load from this stream
//Why can't XmlDocument.Load() just take a string array......
using (var stream = new MemoryStream())
{
var sw = new StreamWriter(stream);
foreach (var line in Lines)
{
sw.Write(line);
sw.Flush();
}
sw.Flush();
stream.Position = 0;
currentXML.Load(stream);
tryLoad = true;
}
}
catch
{
//Generic catch-all clause
}
if (!tryLoad)
{
//Pass out the *original* XML error, not anything generated when we've tried to correct it
Plugin.currentHost.AddMessage(MessageType.Error, false, "Error parsing Loksim3D XML: " + ex.Message);
return(null);
}
}
string BaseDir = System.IO.Path.GetDirectoryName(FileName);
GruppenObject[] CurrentObjects = new GruppenObject[0];
//Check for null
if (currentXML.DocumentElement != null)
{
UnifiedObject[] obj = new UnifiedObject[0];
XmlNodeList DocumentNodes = currentXML.DocumentElement.SelectNodes("/GRUPPENOBJECT");
if (DocumentNodes != null)
{
foreach (XmlNode outerNode in DocumentNodes)
{
if (outerNode.ChildNodes.OfType <XmlElement>().Any())
{
foreach (XmlNode node in outerNode.ChildNodes)
{
if (node.Name == "Object" && node.ChildNodes.OfType <XmlElement>().Any())
{
foreach (XmlNode childNode in node.ChildNodes)
{
if (childNode.Name == "Props" && childNode.Attributes != null)
{
GruppenObject Object = new GruppenObject
{
Rotation = Rotation
};
foreach (XmlAttribute attribute in childNode.Attributes)
{
switch (attribute.Name)
{
case "Name":
string ObjectFile = OpenBveApi.Path.Loksim3D.CombineFile(BaseDir, attribute.Value, Plugin.LoksimPackageFolder);
if (!File.Exists(ObjectFile))
{
Object.Name = null;
Plugin.currentHost.AddMessage(MessageType.Warning, true, "Ls3d Object file " + attribute.Value + " not found.");
}
else
{
Object.Name = ObjectFile;
}
break;
case "Position":
if (!Vector3.TryParse(attribute.Value, ';', out Object.Position))
{
Plugin.currentHost.AddMessage(MessageType.Warning, true, "Invalid position vector " + attribute.Value + " supplied in Ls3d object file.");
}
break;
case "Rotation":
Vector3 r;
if (!Vector3.TryParse(attribute.Value, ';', out r))
{
Plugin.currentHost.AddMessage(MessageType.Warning, true, "Invalid rotation vector " + attribute.Value + " supplied in Ls3d object file.");
}
Object.Rotation += r;
break;
case "ShowOn":
//Defines when the object should be shown
try
{
Object.FunctionScript = FunctionScriptNotation.GetPostfixNotationFromInfixNotation(GetAnimatedFunction(attribute.Value, false));
}
catch
{
Object.FunctionScript = null;
}
break;
case "HideOn":
//Defines when the object should be hidden
try
{
Object.FunctionScript = FunctionScriptNotation.GetPostfixNotationFromInfixNotation(GetAnimatedFunction(attribute.Value, true));
}
catch
{
Object.FunctionScript = null;
}
break;
}
}
if (Object.Name != null)
{
Array.Resize <GruppenObject>(ref CurrentObjects, CurrentObjects.Length + 1);
CurrentObjects[CurrentObjects.Length - 1] = Object;
}
}
}
}
}
}
}
//We've loaded the XML references, now load the objects into memory
//Single mesh object, containing all static components of the LS3D object
//If we use multiples, the Z-sorting throws a wobbly
StaticObject staticObject = new StaticObject(Plugin.currentHost)
{
Mesh = new Mesh
{
Vertices = new VertexTemplate[0],
Faces = new MeshFace[0],
Materials = new MeshMaterial[0]
}
};
for (int i = 0; i < CurrentObjects.Length; i++)
{
if (CurrentObjects[i] == null || string.IsNullOrEmpty(CurrentObjects[i].Name))
{
continue;
}
StaticObject Object = null;
AnimatedObjectCollection AnimatedObject = null;
try {
if (CurrentObjects[i].Name.ToLowerInvariant().EndsWith(".l3dgrp"))
{
AnimatedObject = ReadObject(CurrentObjects[i].Name, Encoding, CurrentObjects[i].Rotation);
}
else if (CurrentObjects[i].Name.ToLowerInvariant().EndsWith(".l3dobj"))
{
Object = Ls3DObjectParser.ReadObject(CurrentObjects[i].Name, CurrentObjects[i].Rotation);
}
else
{
throw new Exception("Format " + System.IO.Path.GetExtension(CurrentObjects[i].Name) + " is not currently supported by the Loksim3D object parser");
}
}
catch (Exception ex) {
Plugin.currentHost.AddMessage(MessageType.Error, false, ex.Message);
}
if (Object != null)
{
if (!string.IsNullOrEmpty(CurrentObjects[i].FunctionScript))
{
//If the function script is not empty, this is a new animated object bit
Array.Resize <UnifiedObject>(ref obj, obj.Length + 1);
obj[obj.Length - 1] = Object;
int aL = Result.Objects.Length;
Array.Resize(ref Result.Objects, aL + 1);
AnimatedObject a = new AnimatedObject(Plugin.currentHost);
ObjectState aos = new ObjectState
{
Prototype = Object,
Translation = Matrix4D.CreateTranslation(CurrentObjects[i].Position.X, CurrentObjects[i].Position.Y, -CurrentObjects[i].Position.Z)
};
a.States = new [] { aos };
Result.Objects[aL] = a;
Result.Objects[aL].StateFunction = new FunctionScript(Plugin.currentHost, CurrentObjects[i].FunctionScript + " 1 == --", false);
}
else
{
//Otherwise, join to the main static mesh & update co-ords
for (int j = 0; j < Object.Mesh.Vertices.Length; j++)
{
Object.Mesh.Vertices[j].Coordinates += CurrentObjects[i].Position;
}
staticObject.JoinObjects(Object);
}
}
else if (AnimatedObject != null)
{
int rl = Result.Objects.Length;
int l = AnimatedObject.Objects.Length;
Array.Resize(ref Result.Objects, Result.Objects.Length + l);
for (int o = rl; o < rl + l; o++)
{
if (AnimatedObject.Objects[o - rl] != null)
{
Result.Objects[o] = AnimatedObject.Objects[o - rl].Clone();
for (int si = 0; si < Result.Objects[o].States.Length; si++)
{
Result.Objects[o].States[si].Translation *= Matrix4D.CreateTranslation(CurrentObjects[i].Position.X, CurrentObjects[i].Position.Y, -CurrentObjects[i].Position.Z);
}
}
else
{
Result.Objects[o] = new AnimatedObject(Plugin.currentHost);
Result.Objects[o].States = new ObjectState[0];
}
}
}
}
if (staticObject != null)
{
Array.Resize(ref Result.Objects, Result.Objects.Length + 1);
AnimatedObject a = new AnimatedObject(Plugin.currentHost);
ObjectState aos = new ObjectState
{
Prototype = staticObject
};
a.States = new [] { aos };
Result.Objects[Result.Objects.Length - 1] = a;
}
}
return(Result);
}
//Didn't find an acceptable XML object
//Probably will cause things to throw an absolute wobbly somewhere....
return(null);
}
