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Added enum support to entity file format, see "Team" component for an example. Use ComponentInfo::Enum to convert enum string keys to its corresponding integer representation at runtime.

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This commit is contained in:
sippeangelo
2016-01-16 22:48:08 +01:00
parent f65ac65e30
commit 9ec32464bc
17 changed files with 383 additions and 222 deletions
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src/Engine/Core/EntityFile.cpp
+182 -5
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@@ -21,16 +21,24 @@ void EntityFile::Parse(const EntityFileHandler* handler) const
using namespace xercesc;
EntityFileSAXHandler saxHandler(handler, nullptr);
m_SAX2XMLReader->setFeature(XMLUni::fgXercesCacheGrammarFromParse, true);
m_SAX2XMLReader->setFeature(XMLUni::fgXercesUseCachedGrammarInParse, true);
m_SAX2XMLReader->setFeature(XMLUni::fgXercesSchema, true);
m_SAX2XMLReader->setFeature(XMLUni::fgXercesSchemaFullChecking, true);
setReaderFeatures(m_SAX2XMLReader);
m_SAX2XMLReader->setContentHandler(&saxHandler);
m_SAX2XMLReader->setErrorHandler(&saxHandler);
m_SAX2XMLReader->setDeclarationHandler(&saxHandler);
m_SAX2XMLReader->parse(m_FilePath.string().c_str());
}
void EntityFile::setReaderFeatures(xercesc::SAX2XMLReader* reader)
{
using namespace xercesc;
reader->setFeature(XMLUni::fgXercesCacheGrammarFromParse, true);
reader->setFeature(XMLUni::fgXercesUseCachedGrammarInParse, true);
reader->setFeature(XMLUni::fgSAX2CoreValidation, true);
reader->setFeature(XMLUni::fgSAX2CoreNameSpaces, true);
reader->setFeature(XMLUni::fgXercesSchema, true);
reader->setFeature(XMLUni::fgXercesSchemaFullChecking, true);
}
std::size_t EntityFile::GetTypeStride(std::string typeName)
{
std::map<std::string, size_t> typeStrides{
@@ -39,6 +47,7 @@ std::size_t EntityFile::GetTypeStride(std::string typeName)
{ "float", sizeof(float) },
{ "double", sizeof(double) },
{ "string", sizeof(std::string) },
{ "enum", sizeof(int) },
{ "Vector", sizeof(glm::vec3) },
{ "Quaternion", sizeof(glm::quat) },
{ "Color", sizeof(glm::vec4) }
@@ -77,7 +86,7 @@ void EntityFile::WriteAttributeData(char* outData, const ComponentInfo::Field_t&
void EntityFile::WriteValueData(char* outData, const ComponentInfo::Field_t& field, const char* valueData)
{
if (field.Type == "int") {
if (field.Type == "int" || field.Type == "enum") {
int value = boost::lexical_cast<int>(valueData);
memcpy(outData, reinterpret_cast<char*>(&value), field.Stride);
} else if (field.Type == "float") {
@@ -95,3 +104,171 @@ void EntityFile::WriteValueData(char* outData, const ComponentInfo::Field_t& fie
LOG_WARNING("Unknown value data type: %s", field.Type.c_str());
}
}
EntityFileSAXHandler::EntityFileSAXHandler(const EntityFileHandler* handler, xercesc::SAX2XMLReader* reader) : m_Handler(handler)
, m_Reader(reader)
{
// 0 is imaginary base parent
m_EntityStack.push(0);
m_StateStack.push(State::Unknown);
}
void EntityFileSAXHandler::startElement(const XMLCh* const _uri, const XMLCh* const _localName, const XMLCh* const _qname, const xercesc::Attributes& attrs)
{
std::string name = XS::ToString(_localName);
if (m_StateStack.top() == State::Unknown || m_StateStack.top() == State::Entity) {
if (name == "Entity") {
m_StateStack.push(State::Entity);
onStartEntity(attrs);
return;
}
if (name == "EntityRef") {
onStartEntityRef(attrs);
return;
}
}
std::string uri = XS::ToString(_uri);
if (m_StateStack.top() == State::Entity) {
if (uri == "components") {
m_StateStack.push(State::Component);
onStartComponent(name);
return;
}
}
if (m_StateStack.top() == State::Component) {
m_StateStack.push(State::ComponentField);
onStartComponentField(name, attrs);
return;
}
}
void EntityFileSAXHandler::endElement(const XMLCh* const _uri, const XMLCh* const _localName, const XMLCh* const _qname)
{
std::string name = XS::ToString(_localName);
if (m_StateStack.top() == State::Entity) {
if (name == "Entity") {
m_StateStack.pop();
onEndEntity();
return;
}
}
std::string uri = XS::ToString(_uri);
if (m_StateStack.top() == State::Component) {
//if (uri == "components") {
m_StateStack.pop();
onEndComponent(name);
return;
//}
}
if (m_StateStack.top() == State::ComponentField) {
m_StateStack.pop();
onEndComponentField(name);
return;
}
}
void EntityFileSAXHandler::characters(const XMLCh* const chars, const XMLSize_t length)
{
if (m_StateStack.top() == State::ComponentField) {
char* transcoded = xercesc::XMLString::transcode(chars);
onFieldData(transcoded);
}
}
void EntityFileSAXHandler::fatalError(const xercesc::SAXParseException& e)
{
XS::ToString s(e.getMessage());
LOG_ERROR("SAXParseException: %s", ((std::string)s).c_str());
//throw e;
}
void EntityFileSAXHandler::error(const xercesc::SAXParseException& e)
{
XS::ToString s(e.getMessage());
LOG_ERROR("SAXParseException: %s", ((std::string)s).c_str());
}
void EntityFileSAXHandler::warning(const xercesc::SAXParseException& e)
{
XS::ToString s(e.getMessage());
LOG_ERROR("SAXParseException: %s", ((std::string)s).c_str());
}
void EntityFileSAXHandler::onStartEntity(const xercesc::Attributes& attrs)
{
EntityID parent = m_EntityStack.top();
if (m_Handler->m_OnStartEntityCallback) {
std::string name;
auto xName = attrs.getValue(XS::ToXMLCh("name"));
if (xName != nullptr) {
name = XS::ToString(xName);
}
m_Handler->m_OnStartEntityCallback(m_NextEntityID, parent, name);
}
m_EntityStack.push(m_NextEntityID);
m_NextEntityID++;
}
void EntityFileSAXHandler::onEndEntity()
{
m_EntityStack.pop();
}
void EntityFileSAXHandler::onStartEntityRef(const xercesc::Attributes& attrs)
{
std::string path = XS::ToString(attrs.getValue(XS::ToXMLCh("file")));
xercesc::SAX2XMLReader* reader = xercesc::XMLReaderFactory::createXMLReader();
EntityFile::setReaderFeatures(reader);
reader->setContentHandler(this);
reader->setErrorHandler(this);
reader->parse(path.c_str());
delete reader;
}
void EntityFileSAXHandler::onStartComponentField(const std::string& field, const xercesc::Attributes& attrs)
{
//LOG_DEBUG(" Field: %s", field.c_str());
m_CurrentField = field;
m_CurrentAttributes.clear();
for (int i = 0; i < attrs.getLength(); i++) {
auto name = attrs.getQName(i);
auto value = attrs.getValue(name);
//LOG_DEBUG(" %s = %s", (char*)XS::ToString(name), (char*)XS::ToString(value));
m_CurrentAttributes[XS::ToString(name).operator std::string()] = XS::ToString(value).operator std::string();
}
if (m_Handler->m_OnStartFieldCallback) {
m_Handler->m_OnStartFieldCallback(m_EntityStack.top(), m_CurrentComponent, field, m_CurrentAttributes);
}
}
void EntityFileSAXHandler::onEndComponent(const std::string& name) { }
void EntityFileSAXHandler::onStartComponent(const std::string& name)
{
//LOG_DEBUG(" Component: %s", name.c_str());
m_CurrentComponent = name;
if (m_Handler->m_OnStartComponentCallback) {
m_Handler->m_OnStartComponentCallback(m_EntityStack.top(), name);
}
}
void EntityFileSAXHandler::onEndComponentField(const std::string& field) { }
void EntityFileSAXHandler::onFieldData(char* data)
{
//LOG_DEBUG(" Data: %s", data);
if (m_Handler->m_OnStartFieldDataCallback) {
m_Handler->m_OnStartFieldDataCallback(m_EntityStack.top(), m_CurrentComponent, m_CurrentField, data);
}
xercesc::XMLString::release(&data);
}