Fix: first update for fixing irrloader

code/AssetLib/Irr/IRRLoader.cpp

@@ -833,7 +833,7 @@ void IRRImporter::GenerateGraph(Node *root, aiNode *rootOut, aiScene *scene,
 }
 
 // ------------------------------------------------------------------------------------------------
-void setupXmlTree(const std::string &filename, IOSystem *pIOHandler, pugi::xml_node &rootElement) {
+void setupXmlTree(const std::string &filename, IOSystem *pIOHandler, XmlParser &xmlParser, pugi::xml_node &rootElement) {
     std::unique_ptr<IOStream> file(pIOHandler->Open(filename));
 
     // Check whether we can read from the file
@@ -842,18 +842,94 @@ void setupXmlTree(const std::string &filename, IOSystem *pIOHandler, pugi::xml_n
     }
 
     // Construct the irrXML parser
-    XmlParser st;
+    if (!xmlParser.parse(file.get())) {
-    if (!st.parse(file.get())) {
         throw DeadlyImportError("XML parse error while loading IRR file ", filename);
     }
-    rootElement = st.getRootNode().child("irr_scene");
+    rootElement = xmlParser.getRootNode().child("irr_scene");
+}
+
+void IRRImporter::parseIrrNode(pugi::xml_node &node) {
+        // ***********************************************************************
+        /*  What we're going to do with the node depends
+                     *  on its type:
+                     *
+                     *  "mesh" - Load a mesh from an external file
+                     *  "cube" - Generate a cube
+                     *  "skybox" - Generate a skybox
+                     *  "light" - A light source
+                     *  "sphere" - Generate a sphere mesh
+                     *  "animatedMesh" - Load an animated mesh from an external file
+                     *    and join its animation channels with ours.
+                     *  "empty" - A dummy node
+                     *  "camera" - A camera
+                     *  "terrain" - a terrain node (data comes from a heightmap)
+                     *  "billboard", ""
+                     *
+                     *  Each of these nodes can be animated and all can have multiple
+                     *  materials assigned (except lights, cameras and dummies, of course).
+                     */
+        // ***********************************************************************
+        pugi::xml_attribute attrib = node.attribute("type");
+        Node *nd;
+        if (!ASSIMP_stricmp(attrib.value(), "mesh") || !ASSIMP_stricmp(attrib.value(), "octTree")) {
+            // OctTree's and meshes are treated equally
+            nd = new Node(Node::MESH);
+        } else if (!ASSIMP_stricmp(attrib.value(), "cube")) {
+            nd = new Node(Node::CUBE);
+            ++guessedMeshCnt;
+        } else if (!ASSIMP_stricmp(attrib.value(), "skybox")) {
+            nd = new Node(Node::SKYBOX);
+            guessedMeshCnt += 6;
+        } else if (!ASSIMP_stricmp(attrib.value(), "camera")) {
+            nd = new Node(Node::CAMERA);
+
+            // Setup a temporary name for the camera
+            aiCamera *cam = new aiCamera();
+            cam->mName.Set(nd->name);
+            cameras.push_back(cam);
+        } else if (!ASSIMP_stricmp(attrib.value(), "light")) {
+            nd = new Node(Node::LIGHT);
+
+            // Setup a temporary name for the light
+            aiLight *cam = new aiLight();
+            cam->mName.Set(nd->name);
+            lights.push_back(cam);
+        } else if (!ASSIMP_stricmp(attrib.value(), "sphere")) {
+            nd = new Node(Node::SPHERE);
+            ++guessedMeshCnt;
+        } else if (!ASSIMP_stricmp(attrib.value(), "animatedMesh")) {
+            nd = new Node(Node::ANIMMESH);
+        } else if (!ASSIMP_stricmp(attrib.value(), "empty")) {
+            nd = new Node(Node::DUMMY);
+        } else if (!ASSIMP_stricmp(attrib.value(), "terrain")) {
+            nd = new Node(Node::TERRAIN);
+        } else if (!ASSIMP_stricmp(attrib.value(), "billBoard")) {
+            // We don't support billboards, so ignore them
+            ASSIMP_LOG_ERROR("IRR: Billboards are not supported by Assimp");
+            nd = new Node(Node::DUMMY);
+        } else {
+            ASSIMP_LOG_WARN("IRR: Found unknown node: ", attrib.value());
+
+            /*  We skip the contents of nodes we don't know.
+                         *  We parse the transformation and all animators
+                         *  and skip the rest.
+                         */
+            nd = new Node(Node::DUMMY);
+        }
+
+        /* Attach the newly created node to the scene-graph
+                     */
+        curNode = nd;
+        nd->parent = curParent;
+        curParent->children.push_back(nd);
     }
 
 // ------------------------------------------------------------------------------------------------
 // Imports the given file into the given scene structure.
 void IRRImporter::InternReadFile(const std::string &filename, aiScene *pScene, IOSystem *pIOHandler) {
     pugi::xml_node rootElement;
-    setupXmlTree(filename, pIOHandler, rootElement);
+    XmlParser xmlParser;
+    setupXmlTree(filename, pIOHandler, xmlParser, rootElement);
     //std::unique_ptr<IOStream> file(pIOHandler->Open(pFile));
 
 	// Check whether we can read from the file

code/AssetLib/Irr/IRRLoader.h

@@ -78,6 +78,7 @@ protected:
     const aiImporterDesc* GetInfo () const override;
     void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) override;
     void SetupProperties(const Importer* pImp) override;
+    void parseIrrNode();
 
 private:
     /** Data structure for a scene-graph node animator

code/AssetLib/Irr/IRRMeshLoader.cpp

@@ -69,14 +69,6 @@ static const aiImporterDesc desc = {
 	"xml irrmesh"
 };
 
-// ------------------------------------------------------------------------------------------------
-// Constructor to be privately used by Importer
-IRRMeshImporter::IRRMeshImporter() = default;
-
-// ------------------------------------------------------------------------------------------------
-// Destructor, private as well
-IRRMeshImporter::~IRRMeshImporter() = default;
-
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file.
 bool IRRMeshImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {

code/AssetLib/Irr/IRRMeshLoader.h

@@ -62,8 +62,8 @@ namespace Assimp {
  */
 class IRRMeshImporter : public BaseImporter, public IrrlichtBase {
 public:
-    IRRMeshImporter();
+    IRRMeshImporter() = default;
-    ~IRRMeshImporter() override;
+    ~IRRMeshImporter() override = default;
 
     // -------------------------------------------------------------------
     /** Returns whether the class can handle the format of the given file.

code/AssetLib/Irr/IRRShared.cpp

@@ -64,7 +64,7 @@ const aiMatrix4x4 Assimp::AI_TO_IRR_MATRIX = aiMatrix4x4 (
 // ------------------------------------------------------------------------------------------------
 // read a property in hexadecimal format (i.e. ffffffff)
 void IrrlichtBase::ReadHexProperty(HexProperty &out ) {
-	for (pugi::xml_attribute attrib : mNode->attributes()) {
+	for (const pugi::xml_attribute &attrib : mNode->attributes()) {
         if (!ASSIMP_stricmp(attrib.name(), "name")) {
             out.name = std::string( attrib.value() );
         } else if (!ASSIMP_stricmp(attrib.name(),"value")) {
@@ -77,7 +77,7 @@ void IrrlichtBase::ReadHexProperty(HexProperty &out ) {
 // ------------------------------------------------------------------------------------------------
 // read a decimal property
 void IrrlichtBase::ReadIntProperty(IntProperty & out) {
-	for (pugi::xml_attribute attrib : mNode->attributes()) {
+	for (const pugi::xml_attribute &attrib : mNode->attributes()) {
 		if (!ASSIMP_stricmp(attrib.name(), "name")) {
 			out.name = std::string(attrib.value());
         } else if (!ASSIMP_stricmp(attrib.value(),"value")) {
@@ -90,7 +90,7 @@ void IrrlichtBase::ReadIntProperty(IntProperty & out) {
 // ------------------------------------------------------------------------------------------------
 // read a string property
 void IrrlichtBase::ReadStringProperty( StringProperty& out) {
-	for (pugi::xml_attribute attrib : mNode->attributes()) {
+	for (const pugi::xml_attribute &attrib : mNode->attributes()) {
 		if (!ASSIMP_stricmp(attrib.name(), "name")) {
 			out.name = std::string(attrib.value());
 		} else if (!ASSIMP_stricmp(attrib.name(), "value")) {
@@ -103,7 +103,7 @@ void IrrlichtBase::ReadStringProperty( StringProperty& out) {
 // ------------------------------------------------------------------------------------------------
 // read a boolean property
 void IrrlichtBase::ReadBoolProperty(BoolProperty &out) {
-	for (pugi::xml_attribute attrib : mNode->attributes()) {
+	for (const pugi::xml_attribute &attrib : mNode->attributes()) {
 		if (!ASSIMP_stricmp(attrib.name(), "name")){
 			out.name = std::string(attrib.value());
 		} else if (!ASSIMP_stricmp(attrib.name(), "value")) {
@@ -116,7 +116,7 @@ void IrrlichtBase::ReadBoolProperty(BoolProperty &out) {
 // ------------------------------------------------------------------------------------------------
 // read a float property
 void IrrlichtBase::ReadFloatProperty(FloatProperty &out) {
-	for (pugi::xml_attribute attrib : mNode->attributes()) {
+	for (const pugi::xml_attribute &attrib : mNode->attributes()) {
 		if (!ASSIMP_stricmp(attrib.name(), "name")) {
 			out.name = std::string(attrib.value());
 		} else if (!ASSIMP_stricmp(attrib.name(), "value")) {
@@ -129,7 +129,7 @@ void IrrlichtBase::ReadFloatProperty(FloatProperty &out) {
 // ------------------------------------------------------------------------------------------------
 // read a vector property
 void IrrlichtBase::ReadVectorProperty( VectorProperty &out ) {
-	for (pugi::xml_attribute attrib : mNode->attributes()) {
+	for (const pugi::xml_attribute &attrib : mNode->attributes()) {
 		if (!ASSIMP_stricmp(attrib.name(), "name")) {
 			out.name = std::string(attrib.value());
 		} else if (!ASSIMP_stricmp(attrib.name(), "value")) {
@@ -179,7 +179,7 @@ aiMaterial* IrrlichtBase::ParseMaterial(unsigned int& matFlags) {
     int cnt  = 0; // number of used texture channels
     unsigned int nd = 0;
 
-    for (pugi::xml_node child : mNode->children()) {
+    for (const pugi::xml_node &child : mNode->children()) {
 		if (!ASSIMP_stricmp(child.name(), "color")) { // Hex properties
 			HexProperty prop;
 			ReadHexProperty(prop);