XMLScene::XMLScene(char *filename, GlobalData &globals, Graph &graphScene)
{
// Read XML from file
doc=new TiXmlDocument( filename );
bool loadOkay = doc->LoadFile();
if ( !loadOkay )
{
printf( "Could not load file '%s'. Error='%s'. Exiting.\n", filename, doc->ErrorDesc() );
exit( 1 );
}
TiXmlElement* anfElement= doc->FirstChildElement( "anf" );
if (anfElement == NULL)
{
printf("Main anf block element not found! Exiting!\n");
exit(1);
}
globalsElement = anfElement->FirstChildElement( "globals" );
cameraElement = anfElement->FirstChildElement("cameras");
lightElement = anfElement->FirstChildElement("lights");
textureElement = anfElement->FirstChildElement("textures");
appearanceElement = anfElement->FirstChildElement("appearances");
graphElement = anfElement->FirstChildElement("graph");
animsElement = anfElement->FirstChildElement("animations");
parseGlobals(globals);
parseCameras(graphScene);
parseLights(graphScene);
parseTextures(graphScene);
parseAppearances(graphScene);
parseAnimations(graphScene);
parseGraph(graphScene);
}
bool ANFparser::parse(Scene * scene,const char* filename){
this->scene = scene;
try{
TiXmlDocument * doc = new TiXmlDocument(filename);
//First things first, reading the XML/ANF file
if (!doc->LoadFile()){
issue("Could not load file '%"+str(filename)+"'. Error='" + str(doc->ErrorDesc()) + "'.", ERROR);
}
//Must exist anf root block
TiXmlElement* anfRoot = doc->FirstChildElement("anf");
if (!anfRoot){
issue("Main block 'anf' block not found!",ERROR);
}
//Lets process the global variables
TiXmlElement* anfGlobals = anfRoot->FirstChildElement("globals");
if(!anfGlobals){
issue("Block 'globals' not found!",WARNING);
}else{
parseGlobals(anfGlobals);
}
//Lets process the cameras
TiXmlElement* anfCameras = anfRoot->FirstChildElement("cameras");
if(!anfCameras){
issue("Block 'cameras' not found!",ERROR);
}else{
std::string firstCameraId = str(anfCameras->Attribute("initial"));
if(firstCameraId == "" ){
issue("Cameras block must declare the first camera.. ", WARNING);
}
parseCameras(anfCameras,firstCameraId);
}
//Lets process the lights
TiXmlElement* anfLights = anfRoot->FirstChildElement("lights");
if(!anfLights){
issue("Block 'lights' not found!",WARNING);
}else{
parseLights(anfLights);
}
//If textures extist, we process it
TiXmlElement* anfTextures = anfRoot->FirstChildElement("textures");
map<std::string,Texture *> textures;
if(!anfTextures){
issue("Block 'textures' not found!",WARNING);
}else{
parseTextures(anfTextures,textures);
}
//If appearances block exist, we call its parser
TiXmlElement* anfAppearances = anfRoot->FirstChildElement("appearances");
map<std::string,Appearance *> appearances;
if(!anfAppearances){
issue("Block 'appearances' not found!",WARNING);
}else{
parseAppearances(anfAppearances,appearances,textures);
}
//If animations extist, we process it
TiXmlElement* anfAnimations = anfRoot->FirstChildElement("animations");
map<std::string,Animation *> animations;
if(!anfAnimations){
issue("Block 'animations' not found!",WARNING);
}else{
parseAnimations(anfAnimations,animations);
}
//If graph block exist, we call its parser
TiXmlElement* anfGraph = anfRoot->FirstChildElement("graph");
if(!anfGraph){
issue("Block 'graph' not found!",ERROR);
}else{
this->scene->setRoot(parseGraph(anfGraph,appearances,animations));
}
return true;
}catch(...){
return false;
}
}