After studying the loadScene() function in the CSceneManager.cpp and knowing that irrXML parses the XML file sequentially, I finally got it to work!
Here is my example code (only the important stuff):
<?xml version="1.0"?>
<root>
<config>
<!-- This is a config file for the mesh viewer -->
<models>
<model file="dwarf.dea" />
<model file="dwarf1.dea" />
<model file="dwarf2.dea" />
</models>
<messageText caption="Irrlicht Engine Mesh Viewer">
Welcome to the Mesh Viewer of the "Irrlicht Engine".
</messageText>
</config>
<config>
<!-- This is a config file for the mesh viewer -->
<models>
<model file="dwarf.dea" />
</models>
<messageText caption="Irrlicht Engine Mesh Viewer">
Welcome to the Mesh Viewer of the "Irrlicht Engine".
</messageText>
</config>
<config>
<!-- This is a config file for the mesh viewer -->
<models>
<model file="dwarf.dea" />
</models>
<messageText caption="Irrlicht Engine Mesh Viewer">
Welcome to the Mesh Viewer of the "Irrlicht Engine".
</messageText>
</config>
</root>
typedef std::map<int, Config*> ConfigMap;
ConfigMap configs;
void readXML() {
irr::io::IrrXMLReader* xml = irr::io::createIrrXMLReader("../data/data.xml");
int i = 0;
// parse the file until end reached
while(xml && xml->read())
{
bool endreached = false;
switch(xml->getNodeType())
{
case irr::io::EXN_ELEMENT_END:
if (irr::core::stringw(L"root")==xml->getNodeName()) {
endreached = true;
}
break;
case irr::io::EXN_ELEMENT:
if (irr::core::stringw(L"config")==xml->getNodeName()) {
readConfig(xml, i++);
}
break;
default:
break;
}
if (endreached)
break;
}
// delete the xml parser after usage
delete xml;
}
void readConfig(irr::io::IrrXMLReader* xml, int i) {
while(xml && xml->read())
{
const irr::core::stringw name = xml->getNodeName();
switch (xml->getNodeType())
{
case irr::io::EXN_ELEMENT_END:
if (irr::core::stringw(L"config")==name) {
return;
}
break;
case irr::io::EXN_ELEMENT:
if (irr::core::stringw(L"models")==name) {
readModel(xml, i);
}
else
if (irr::core::stringw(L"messageText")==name) {
configs[i]->setMessageTextCaption(xml->getAttributeValue("caption"));
configs[i]->setMessageText(xml->getNodeData());
}
else
{
std::cout << "Found unknown element in xml file" << irr::core::stringc(xml->getNodeName()).c_str() << std::endl;
}
break;
default:
break;
}
}
}
void readModel(irr::io::IrrXMLReader* xml, int i) {
int s = 0;
while(xml && xml->read())
{
switch (xml->getNodeType())
{
case irr::io::EXN_ELEMENT_END:
if (irr::core::stringw(L"models")==xml->getNodeName()) {
return;
}
break;
case irr::io::EXN_ELEMENT:
if (irr::core::stringw(L"model")==xml->getNodeName()) {
configs[i]->setModels(xml->getAttributeValue("file"), s++);
}
break;
default:
break;
}
}
}
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