private static object ReadSimpleType(XMLFragmentElement node, Type type, bool outer) { if (type == null) { return(ReadSimpleType(node.Elements[1], Type.GetType(node.Elements[0].Value), outer)); } XmlSerializer serializer = new XmlSerializer(type); XmlSerializerNamespaces xmlnsEmpty = new XmlSerializerNamespaces(); xmlnsEmpty.Add("", ""); using (MemoryStream stream = new MemoryStream()) { StreamWriter writer = new StreamWriter(stream); { writer.Write((string)((outer) ? node.OuterXml : node.InnerXml)); writer.Flush(); stream.Position = 0; } XmlReaderSettings settings = new XmlReaderSettings(); settings.ConformanceLevel = ConformanceLevel.Fragment; return(serializer.Deserialize(XmlReader.Create(stream, settings))); } }
private void Parse() { _rootNode = TryParseNode(); if (_rootNode == null) { throw new XMLFragmentException("Unable to load root node"); } }
public XMLFragmentElement TryParseNode() { if (_buffer.EndOfBuffer) { return(null); } int startOuterXml = _buffer.Position; string token = NextToken(); if (token != "<") { throw new XMLFragmentException("Expected \"<\", got " + token); } XMLFragmentElement element = new XMLFragmentElement(); element.Name = NextToken(); while (true) { token = NextToken(); if (token == ">") { break; } else if (token == "/") // quick-exit case { NextToken(); element.OuterXml = TrimControl(_buffer.Buffer.Substring(startOuterXml, _buffer.Position - startOuterXml)).Trim(); element.InnerXml = ""; return(element); } else { XMLFragmentAttribute attribute = new XMLFragmentAttribute(); attribute.Name = token; if ((token = NextToken()) != "=") { throw new XMLFragmentException("Expected \"=\", got " + token); } attribute.Value = NextToken(); element.Attributes.Add(attribute); } } while (true) { int oldPos = _buffer.Position; // for restoration below token = NextToken(); if (token == "<") { token = PeekToken(); if (token == "/") // finish element { NextToken(); // skip the / again token = NextToken(); NextToken(); // skip > element.OuterXml = TrimControl(_buffer.Buffer.Substring(startOuterXml, _buffer.Position - startOuterXml)).Trim(); element.InnerXml = TrimTags(element.OuterXml); if (token != element.Name) { throw new XMLFragmentException("Mismatched element pairs: \"" + element.Name + "\" vs \"" + token + "\""); } break; } else { _buffer.Position = oldPos; element.Elements.Add(TryParseNode()); } } else { // value, probably _buffer.Position = oldPos; element.Value = ReadUntil('<'); } } return(element); }
private static Vector2 ReadVector(XMLFragmentElement node) { string[] values = node.Value.Split(' '); return(new Vector2(float.Parse(values[0]), float.Parse(values[1]))); }
private static void Deserialize(World world, Stream stream) { List <Body> bodies = new List <Body>(); List <Fixture> fixtures = new List <Fixture>(); List <Joint> joints = new List <Joint>(); List <Shape> shapes = new List <Shape>(); XMLFragmentElement root = XMLFragmentParser.LoadFromStream(stream); if (root.Name.ToLower() != "world") { throw new Exception(); } //Read gravity foreach (XMLFragmentElement element in root.Elements) { if (element.Name.ToLower() == "gravity") { world.Gravity = ReadVector(element); break; } } //Read shapes foreach (XMLFragmentElement shapeElement in root.Elements) { if (shapeElement.Name.ToLower() == "shapes") { foreach (XMLFragmentElement element in shapeElement.Elements) { if (element.Name.ToLower() != "shape") { throw new Exception(); } ShapeType type = (ShapeType)Enum.Parse(typeof(ShapeType), element.Attributes[0].Value, true); float density = float.Parse(element.Attributes[1].Value); switch (type) { case ShapeType.Circle: { CircleShape shape = new CircleShape(); shape._density = density; foreach (XMLFragmentElement sn in element.Elements) { switch (sn.Name.ToLower()) { case "radius": shape.Radius = float.Parse(sn.Value); break; case "position": shape.Position = ReadVector(sn); break; default: throw new Exception(); } } shapes.Add(shape); } break; case ShapeType.Polygon: { PolygonShape shape = new PolygonShape(); shape._density = density; foreach (XMLFragmentElement sn in element.Elements) { switch (sn.Name.ToLower()) { case "vertices": { List <Vector2> verts = new List <Vector2>(sn.Elements.Count); foreach (XMLFragmentElement vert in sn.Elements) { verts.Add(ReadVector(vert)); } shape.Vertices = new Vertices(verts); } break; case "centroid": shape.MassData.Centroid = ReadVector(sn); break; } } shapes.Add(shape); } break; case ShapeType.Edge: { EdgeShape shape = new EdgeShape(); shape._density = density; foreach (XMLFragmentElement sn in element.Elements) { switch (sn.Name.ToLower()) { case "hasvertex0": shape.HasVertex0 = bool.Parse(sn.Value); break; case "hasvertex3": shape.HasVertex0 = bool.Parse(sn.Value); break; case "vertex0": shape.Vertex0 = ReadVector(sn); break; case "vertex1": shape.Vertex1 = ReadVector(sn); break; case "vertex2": shape.Vertex2 = ReadVector(sn); break; case "vertex3": shape.Vertex3 = ReadVector(sn); break; default: throw new Exception(); } } shapes.Add(shape); } break; case ShapeType.Chain: { ChainShape shape = new ChainShape(); shape._density = density; foreach (XMLFragmentElement sn in element.Elements) { switch (sn.Name.ToLower()) { case "vertices": { List <Vector2> verts = new List <Vector2>(sn.Elements.Count); foreach (XMLFragmentElement vert in sn.Elements) { verts.Add(ReadVector(vert)); } shape.Vertices = new Vertices(verts); } break; case "nextvertex": shape.NextVertex = ReadVector(sn); break; case "prevvertex": shape.PrevVertex = ReadVector(sn); break; default: throw new Exception(); } } shapes.Add(shape); } break; } } } } //Read fixtures foreach (XMLFragmentElement fixtureElement in root.Elements) { if (fixtureElement.Name.ToLower() == "fixtures") { foreach (XMLFragmentElement element in fixtureElement.Elements) { Fixture fixture = new Fixture(); if (element.Name.ToLower() != "fixture") { throw new Exception(); } fixture.FixtureId = int.Parse(element.Attributes[0].Value); foreach (XMLFragmentElement sn in element.Elements) { switch (sn.Name.ToLower()) { case "filterdata": foreach (XMLFragmentElement ssn in sn.Elements) { switch (ssn.Name.ToLower()) { case "categorybits": fixture._collisionCategories = (Category)int.Parse(ssn.Value); break; case "maskbits": fixture._collidesWith = (Category)int.Parse(ssn.Value); break; case "groupindex": fixture._collisionGroup = short.Parse(ssn.Value); break; case "CollisionIgnores": string[] split = ssn.Value.Split('|'); foreach (string s in split) { fixture._collisionIgnores.Add(int.Parse(s)); } break; } } break; case "friction": fixture.Friction = float.Parse(sn.Value); break; case "issensor": fixture.IsSensor = bool.Parse(sn.Value); break; case "restitution": fixture.Restitution = float.Parse(sn.Value); break; case "userdata": fixture.UserData = ReadSimpleType(sn, null, false); break; } } fixtures.Add(fixture); } } } //Read bodies foreach (XMLFragmentElement bodyElement in root.Elements) { if (bodyElement.Name.ToLower() == "bodies") { foreach (XMLFragmentElement element in bodyElement.Elements) { Body body = new Body(world); if (element.Name.ToLower() != "body") { throw new Exception(); } body.BodyType = (BodyType)Enum.Parse(typeof(BodyType), element.Attributes[0].Value, true); foreach (XMLFragmentElement sn in element.Elements) { switch (sn.Name.ToLower()) { case "active": bool enabled = bool.Parse(sn.Value); if (enabled) { body._flags |= BodyFlags.Enabled; } else { body._flags &= ~BodyFlags.Enabled; } break; case "allowsleep": body.SleepingAllowed = bool.Parse(sn.Value); break; case "angle": { Vector2 position = body.Position; body.SetTransformIgnoreContacts(ref position, float.Parse(sn.Value)); } break; case "angulardamping": body.AngularDamping = float.Parse(sn.Value); break; case "angularvelocity": body.AngularVelocity = float.Parse(sn.Value); break; case "awake": body.Awake = bool.Parse(sn.Value); break; case "bullet": body.IsBullet = bool.Parse(sn.Value); break; case "fixedrotation": body.FixedRotation = bool.Parse(sn.Value); break; case "lineardamping": body.LinearDamping = float.Parse(sn.Value); break; case "linearvelocity": body.LinearVelocity = ReadVector(sn); break; case "position": { float rotation = body.Rotation; Vector2 position = ReadVector(sn); body.SetTransformIgnoreContacts(ref position, rotation); } break; case "userdata": body.UserData = ReadSimpleType(sn, null, false); break; case "bindings": { foreach (XMLFragmentElement pair in sn.Elements) { Fixture fix = fixtures[int.Parse(pair.Attributes[0].Value)]; fix.Shape = shapes[int.Parse(pair.Attributes[1].Value)].Clone(); fix.CloneOnto(body); } break; } } } bodies.Add(body); } } } //Read joints foreach (XMLFragmentElement jointElement in root.Elements) { if (jointElement.Name.ToLower() == "joints") { foreach (XMLFragmentElement n in jointElement.Elements) { Joint joint; if (n.Name.ToLower() != "joint") { throw new Exception(); } JointType type = (JointType)Enum.Parse(typeof(JointType), n.Attributes[0].Value, true); int bodyAIndex = -1, bodyBIndex = -1; bool collideConnected = false; object userData = null; foreach (XMLFragmentElement sn in n.Elements) { switch (sn.Name.ToLower()) { case "bodya": bodyAIndex = int.Parse(sn.Value); break; case "bodyb": bodyBIndex = int.Parse(sn.Value); break; case "collideconnected": collideConnected = bool.Parse(sn.Value); break; case "userdata": userData = ReadSimpleType(sn, null, false); break; } } Body bodyA = bodies[bodyAIndex]; Body bodyB = bodies[bodyBIndex]; switch (type) { //case JointType.FixedMouse: // joint = new FixedMouseJoint(); // break; //case JointType.FixedRevolute: // break; //case JointType.FixedDistance: // break; //case JointType.FixedLine: // break; //case JointType.FixedPrismatic: // break; //case JointType.FixedAngle: // break; //case JointType.FixedFriction: // break; case JointType.Distance: joint = new DistanceJoint(); break; case JointType.Friction: joint = new FrictionJoint(); break; case JointType.Wheel: joint = new WheelJoint(); break; case JointType.Prismatic: joint = new PrismaticJoint(); break; case JointType.Pulley: joint = new PulleyJoint(); break; case JointType.Revolute: joint = new RevoluteJoint(); break; case JointType.Weld: joint = new WeldJoint(); break; case JointType.Rope: joint = new RopeJoint(); break; case JointType.Angle: joint = new AngleJoint(); break; case JointType.Motor: joint = new MotorJoint(); break; case JointType.Gear: throw new Exception("GearJoint is not supported."); default: throw new Exception("Invalid or unsupported joint."); } joint.CollideConnected = collideConnected; joint.UserData = userData; joint.BodyA = bodyA; joint.BodyB = bodyB; joints.Add(joint); world.AddJoint(joint); foreach (XMLFragmentElement sn in n.Elements) { // check for specific nodes switch (type) { case JointType.Distance: { switch (sn.Name.ToLower()) { case "dampingratio": ((DistanceJoint)joint).DampingRatio = float.Parse(sn.Value); break; case "frequencyhz": ((DistanceJoint)joint).Frequency = float.Parse(sn.Value); break; case "length": ((DistanceJoint)joint).Length = float.Parse(sn.Value); break; case "localanchora": ((DistanceJoint)joint).LocalAnchorA = ReadVector(sn); break; case "localanchorb": ((DistanceJoint)joint).LocalAnchorB = ReadVector(sn); break; } } break; case JointType.Friction: { switch (sn.Name.ToLower()) { case "localanchora": ((FrictionJoint)joint).LocalAnchorA = ReadVector(sn); break; case "localanchorb": ((FrictionJoint)joint).LocalAnchorB = ReadVector(sn); break; case "maxforce": ((FrictionJoint)joint).MaxForce = float.Parse(sn.Value); break; case "maxtorque": ((FrictionJoint)joint).MaxTorque = float.Parse(sn.Value); break; } } break; case JointType.Wheel: { switch (sn.Name.ToLower()) { case "enablemotor": ((WheelJoint)joint).MotorEnabled = bool.Parse(sn.Value); break; case "localanchora": ((WheelJoint)joint).LocalAnchorA = ReadVector(sn); break; case "localanchorb": ((WheelJoint)joint).LocalAnchorB = ReadVector(sn); break; case "motorspeed": ((WheelJoint)joint).MotorSpeed = float.Parse(sn.Value); break; case "dampingratio": ((WheelJoint)joint).DampingRatio = float.Parse(sn.Value); break; case "maxmotortorque": ((WheelJoint)joint).MaxMotorTorque = float.Parse(sn.Value); break; case "frequencyhz": ((WheelJoint)joint).Frequency = float.Parse(sn.Value); break; case "axis": ((WheelJoint)joint).Axis = ReadVector(sn); break; } } break; case JointType.Prismatic: { switch (sn.Name.ToLower()) { case "enablelimit": ((PrismaticJoint)joint).LimitEnabled = bool.Parse(sn.Value); break; case "enablemotor": ((PrismaticJoint)joint).MotorEnabled = bool.Parse(sn.Value); break; case "localanchora": ((PrismaticJoint)joint).LocalAnchorA = ReadVector(sn); break; case "localanchorb": ((PrismaticJoint)joint).LocalAnchorB = ReadVector(sn); break; case "axis": ((PrismaticJoint)joint).Axis = ReadVector(sn); break; case "maxmotorforce": ((PrismaticJoint)joint).MaxMotorForce = float.Parse(sn.Value); break; case "motorspeed": ((PrismaticJoint)joint).MotorSpeed = float.Parse(sn.Value); break; case "lowertranslation": ((PrismaticJoint)joint).LowerLimit = float.Parse(sn.Value); break; case "uppertranslation": ((PrismaticJoint)joint).UpperLimit = float.Parse(sn.Value); break; case "referenceangle": ((PrismaticJoint)joint).ReferenceAngle = float.Parse(sn.Value); break; } } break; case JointType.Pulley: { switch (sn.Name.ToLower()) { case "worldanchora": ((PulleyJoint)joint).WorldAnchorA = ReadVector(sn); break; case "worldanchorb": ((PulleyJoint)joint).WorldAnchorB = ReadVector(sn); break; case "lengtha": ((PulleyJoint)joint).LengthA = float.Parse(sn.Value); break; case "lengthb": ((PulleyJoint)joint).LengthB = float.Parse(sn.Value); break; case "localanchora": ((PulleyJoint)joint).LocalAnchorA = ReadVector(sn); break; case "localanchorb": ((PulleyJoint)joint).LocalAnchorB = ReadVector(sn); break; case "ratio": ((PulleyJoint)joint).Ratio = float.Parse(sn.Value); break; case "constant": ((PulleyJoint)joint).Constant = float.Parse(sn.Value); break; } } break; case JointType.Revolute: { switch (sn.Name.ToLower()) { case "enablelimit": ((RevoluteJoint)joint).LimitEnabled = bool.Parse(sn.Value); break; case "enablemotor": ((RevoluteJoint)joint).MotorEnabled = bool.Parse(sn.Value); break; case "localanchora": ((RevoluteJoint)joint).LocalAnchorA = ReadVector(sn); break; case "localanchorb": ((RevoluteJoint)joint).LocalAnchorB = ReadVector(sn); break; case "maxmotortorque": ((RevoluteJoint)joint).MaxMotorTorque = float.Parse(sn.Value); break; case "motorspeed": ((RevoluteJoint)joint).MotorSpeed = float.Parse(sn.Value); break; case "lowerangle": ((RevoluteJoint)joint).LowerLimit = float.Parse(sn.Value); break; case "upperangle": ((RevoluteJoint)joint).UpperLimit = float.Parse(sn.Value); break; case "referenceangle": ((RevoluteJoint)joint).ReferenceAngle = float.Parse(sn.Value); break; } } break; case JointType.Weld: { switch (sn.Name.ToLower()) { case "localanchora": ((WeldJoint)joint).LocalAnchorA = ReadVector(sn); break; case "localanchorb": ((WeldJoint)joint).LocalAnchorB = ReadVector(sn); break; } } break; case JointType.Rope: { switch (sn.Name.ToLower()) { case "localanchora": ((RopeJoint)joint).LocalAnchorA = ReadVector(sn); break; case "localanchorb": ((RopeJoint)joint).LocalAnchorB = ReadVector(sn); break; case "maxlength": ((RopeJoint)joint).MaxLength = float.Parse(sn.Value); break; } } break; case JointType.Gear: throw new Exception("Gear joint is unsupported"); case JointType.Angle: { switch (sn.Name.ToLower()) { case "biasfactor": ((AngleJoint)joint).BiasFactor = float.Parse(sn.Value); break; case "maximpulse": ((AngleJoint)joint).MaxImpulse = float.Parse(sn.Value); break; case "softness": ((AngleJoint)joint).Softness = float.Parse(sn.Value); break; case "targetangle": ((AngleJoint)joint).TargetAngle = float.Parse(sn.Value); break; } } break; case JointType.Motor: switch (sn.Name.ToLower()) { case "angularoffset": ((MotorJoint)joint).AngularOffset = float.Parse(sn.Value); break; case "linearoffset": ((MotorJoint)joint).LinearOffset = ReadVector(sn); break; case "maxforce": ((MotorJoint)joint).MaxForce = float.Parse(sn.Value); break; case "maxtorque": ((MotorJoint)joint).MaxTorque = float.Parse(sn.Value); break; case "correctionfactor": ((MotorJoint)joint).CorrectionFactor = float.Parse(sn.Value); break; } break; } } } } } world.ProcessChanges(); }