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); }