void ConfigSingleton::configure(std::string xml_file_path)
{
//Open XML config file and try to load it
XMLDocument doc;
if(doc.LoadFile(xml_file_path.c_str()) != XML_SUCCESS)
{
std::cerr << "Cannot reach configuration file: " << xml_file_path << "!" << std::endl;
return;
}
//Look for <config> element
XMLElement* pConfig = doc.FirstChildElement("root")->FirstChildElement("config");
if(pConfig==nullptr)
{
std::cerr << "Invalid configuration file: " << xml_file_path << "!" << std::endl;
return;
}
//Iterate attribute list and set parameter values
//Version 2 of TinyXML won't let me iterate over Attribute list this way by returning
//const XMLAttribute*. I'm forced to const_cast before I find an elegant way of doing this.
XMLAttribute* pAttrib = const_cast<XMLAttribute*>(pConfig->FirstAttribute());
while(pAttrib != nullptr)
{
set_parameter(pAttrib->Name(),pAttrib->Value());
pAttrib = const_cast<XMLAttribute*>(pAttrib->Next());
}
}
//来自：TinyXML
void XMLElement::ToFile(FILE *file,int blankdepth)
{
int i;
for ( i = 0; i < blankdepth; i++ )
{
fprintf( file, " " );
}
fprintf_s( file, "<%s", value.c_str() );
XMLAttribute* attri = NULL;
for ( attri = attributes.First(); attri; attri = attri->Next() )
{
fprintf_s( file, " " );
attri->ToFile( file, blankdepth );
}
// There are 3 different formatting approaches:
// 1) An element without children is printed as a <foo /> node
// 2) An element with only a text child is printed as <foo> text </foo>
// 3) An element with children is printed on multiple lines.
if ( !firstChild )
{
fprintf_s( file, " />" );
}
else if ( firstChild == lastChild && firstChild->ToText() )
{
fprintf_s( file, ">" );
firstChild->ToFile( file, blankdepth + 1 );
fprintf_s( file, "</%s>", value.c_str() );
}
else
{
XMLNode* node = NULL;
fprintf_s( file, ">" );
for ( node = firstChild; node; node=node->NextSibling() )
{
if ( !node->ToText() )
{
fprintf_s( file, "\n" );
}
node->ToFile( file, blankdepth + 1 );
}
fprintf_s( file, "\n" );
for( i=0; i < blankdepth; ++i )
fprintf_s( file, " " );
fprintf_s( file, "</%s>", value.c_str() );
}
}
void cSDL2DSceneManager::addLayerObjects(c2DLayer *Layer, XMLElement *Element)
{
cSceneObject* Object = new cSceneObject();
unsigned int r=0;
unsigned int g=0;
unsigned int b=0;
if(!Object)
return;
for(XMLAttribute* ElementAttrib = const_cast<XMLAttribute*>(Element->FirstAttribute()); ElementAttrib; ElementAttrib = const_cast<XMLAttribute*>(ElementAttrib->Next()))
{
std::string AttribName = ElementAttrib->Name();
std::string AttribValue = ElementAttrib->Value();
if(AttribName=="resourceID")
{
cResourceManager* ResourceManager = cResourceManager::GetResourceManager();
Object->setResourceObject((cRenderResource*) ResourceManager->findResourcebyID(atoi(AttribValue.c_str())));
}
if(AttribName=="posx")
{
Object->m_PosX = atof(AttribValue.c_str());
}
if(AttribName=="posy")
{
Object->m_PosY = atof(AttribValue.c_str());
}
if(AttribName=="colorkey")
{
if(AttribValue=="true")
Object->m_bColorKeyEnabled=true;
else
Object->m_bColorKeyEnabled=false;
}
if(AttribName=="r")
{
r = atoi(AttribValue.c_str());
}
if(AttribName=="g")
{
g = atoi(AttribValue.c_str());
}
if(AttribName=="b")
{
b = atoi(AttribValue.c_str());
}
}
if(Object->m_bColorKeyEnabled)
Object->setColorKey(r,g,b);
Layer->m_SceneObjects.push_back(Object);
}
bool cSDL2DSceneManager::loadFromXMLFile(std::string Filename)
{
XMLDocument doc(Filename.c_str());
std::list<c2DLayer*> List;
if(doc.LoadFile(Filename.c_str()) == XML_NO_ERROR)
{
//Find resources node
XMLNode* ResourceTree = doc.RootElement();
if(ResourceTree)
{
//Enumerate resource objects
for(XMLNode* child = ResourceTree->FirstChild(); child; child = child->NextSibling())
{
XMLElement *Element = child->ToElement();
if(Element)
{
c2DLayer *Layer = new c2DLayer();
Layer->m_ZOrder = m_Layers.size();
for(XMLAttribute* ElementAttrib = const_cast<XMLAttribute*>(Element->FirstAttribute()); ElementAttrib; ElementAttrib = const_cast<XMLAttribute*>(ElementAttrib->Next()))
{
//Examine layers
std::string AttribName = ElementAttrib->Name();
std::string AttribValue = ElementAttrib->Value();
//Detect resource type. Graphic? Audio? Text?
if(AttribName=="name")
{
Layer->m_Name=AttribValue;
continue;
}
if(AttribName=="posx")
{
Layer->m_PosX = atof(AttribValue.c_str());
}
if(AttribName=="posy")
{
Layer->m_PosY = atof(AttribValue.c_str());
}
if(AttribName=="visible")
{
if(AttribValue=="true")
Layer->m_bVisible=true;
else
Layer->m_bVisible=false;
}
}
m_Layers.push_back(Layer);
//Cycle through layer objects
for(XMLNode* objs = child->FirstChild(); objs; objs = objs->NextSibling())
{
if(std::string(objs->Value())=="objects")
{
for(XMLNode* obj = objs->FirstChild(); obj; obj = obj->NextSibling())
{
XMLElement *ObjElement = obj->ToElement();
addLayerObjects(Layer, ObjElement);
}
}
}
}
}
sortLayers();
return true;
}
}
return false;
}