Entity parenting on parse

New entity loading and saving

README.md

@@ -1,16 +1,17 @@
 #### Bundled libraries
 Libraries bundled along with binaries for Windows (MSVC14), available as a submodule in the *deps* directory of the source tree.
 
-| Project                                                       | Version      | License                                                                                                                                                                            |
-| ------------------------------------------------------------- | ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| **[GLFW](http://www.glfw.org)**                               | 3.1.2        | [zlib/libpng License](http://www.glfw.org/license.html)                                                                                                                            |
-| **[GLM](http://glm.g-truc.net/0.9.5/index.html)**             | 0.9.7.1      | [MIT License](http://glm.g-truc.net/copying.txt)                                                                                                                                   |
-| **[GLEW](http://glew.sourceforge.net)**                       | 1.13.0       | [Modified BSD License](http://glew.sourceforge.net/glew.txt), [Mesa 3-D License](http://glew.sourceforge.net/mesa.txt), [Khronos License](http://glew.sourceforge.net/khronos.txt) |
-| **[Assimp](http://assimp.sourceforge.net)**                   | 3.1.1        | [BSD 3-Clause License](http://assimp.sourceforge.net/main_license.html)                                                                                                            |
-| **[zlib](http://www.zlib.net)**                               | 1.28         | [zlib License](http://www.zlib.net/zlib_license.html)                                                                                                                              |
-| **[libpng](http://www.libpng.org/pub/png/libpng.html)**       | 1.6.19       | [libpng License](http://www.libpng.org/pub/png/src/libpng-LICENSE.txt)                                                                                                             |
-| **[Xerces-C++](https://xerces.apache.org/xerces-c)**          | 3.1.2        | [Apache License Version 2.0](https://www.apache.org/licenses/LICENSE-2.0)                                                                                                          |
-| **[ImGui](https://github.com/ocornut/imgui)**                 | 2015-12-12   | [MIT License](https://github.com/ocornut/imgui/blob/de3a154f3801de22c8e0bd2aeabf663a70c05972/LICENSE)                                                                              |
+| Project                                                          | Version      | License                                                                                                                                                                            |
+| ---------------------------------------------------------------- | ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| **[GLFW](http://www.glfw.org)**                                  | 3.1.2        | [zlib/libpng License](http://www.glfw.org/license.html)                                                                                                                            |
+| **[GLM](http://glm.g-truc.net/0.9.5/index.html)**                | 0.9.7.1      | [MIT License](http://glm.g-truc.net/copying.txt)                                                                                                                                   |
+| **[GLEW](http://glew.sourceforge.net)**                          | 1.13.0       | [Modified BSD License](http://glew.sourceforge.net/glew.txt), [Mesa 3-D License](http://glew.sourceforge.net/mesa.txt), [Khronos License](http://glew.sourceforge.net/khronos.txt) |
+| **[Assimp](http://assimp.sourceforge.net)**                      | 3.1.1        | [BSD 3-Clause License](http://assimp.sourceforge.net/main_license.html)                                                                                                            |
+| **[zlib](http://www.zlib.net)**                                  | 1.28         | [zlib License](http://www.zlib.net/zlib_license.html)                                                                                                                              |
+| **[libpng](http://www.libpng.org/pub/png/libpng.html)**          | 1.6.19       | [libpng License](http://www.libpng.org/pub/png/src/libpng-LICENSE.txt)                                                                                                             |
+| **[Xerces-C++](https://xerces.apache.org/xerces-c)**             | 3.1.2        | [Apache License Version 2.0](https://www.apache.org/licenses/LICENSE-2.0)                                                                                                          |
+| **[ImGui](https://github.com/ocornut/imgui)**                    | 2015-12-12   | [MIT License](https://github.com/ocornut/imgui/blob/de3a154f3801de22c8e0bd2aeabf663a70c05972/LICENSE)                                                                              |
+| **[nativefiledialog](https://github.com/mlabbe/nativefiledialog) | 2016-01-08   | https://github.com/mlabbe/nativefiledialog/blob/master/LICENSE                                                                                                                     |
 
 #### External libraries
 Libraries that are too big to be bundled with the project.

include/Engine/Core/ComponentInfo.h

@@ -12,9 +12,16 @@ struct ComponentInfo
         unsigned int Stride = 0;
 	};
 
+    struct Field_t
+    {
+        std::string Type;
+        unsigned int Offset;
+        unsigned int Stride;
+    };
+
 	std::string Name;
-	std::unordered_map<std::string, std::string> FieldTypes;
-	std::unordered_map<std::string, unsigned int> FieldOffsets;
+    std::unordered_map<std::string, Field_t> Fields;
+    std::vector<const Field_t*> FieldsInOrder;
 	Meta_t Meta;
     std::shared_ptr<char> Defaults = nullptr;
 };

include/Engine/Core/ComponentWrapper.h

@@ -21,7 +21,7 @@ struct ComponentWrapper
     template <typename T>
     T& Property(std::string name)
     {
-        unsigned int offset = Info.FieldOffsets.at(name);
+        unsigned int offset = Info.Fields.at(name).Offset;
         return *reinterpret_cast<T*>(&Data[offset]);
     }
 
@@ -78,8 +78,9 @@ public:
     void AddProperty(std::string fieldName, T defaultValue)
     {
         m_DefaultValues.push_back(defaultValue);
-        m_ComponentInfo.FieldTypes[fieldName] = typeid(T).name();
-        m_ComponentInfo.FieldOffsets[fieldName] = m_ComponentInfo.Meta.Stride;
+        m_ComponentInfo.Fields[fieldName].Name = typeid(T).name();
+        m_ComponentInfo.Fields[fieldName].Offset = m_ComponentInfo.Meta.Stride;
+        m_ComponentInfo.Fields[fieldName].Stride = sizeof(T);
         m_ComponentInfo.Meta.Stride += sizeof(T);
     }
     

include/Engine/Core/Entity.h

@@ -2,5 +2,6 @@
 #define Entity_h__
 
 typedef unsigned int EntityID;
+const static unsigned int EntityID_Invalid = -1;
 
 #endif

include/Engine/Core/EntityFile.h

@@ -0,0 +1,303 @@
+#ifndef EntityFile_h__
+#define EntityFile_h__
+
+#include <stack>
+#include <boost/lexical_cast.hpp>
+#include <xercesc/util/XercesDefs.hpp>
+#include <xercesc/util/PlatformUtils.hpp>
+#include <xercesc/sax2/SAX2XMLReader.hpp>
+#include <xercesc/sax2/XMLReaderFactory.hpp>
+#include <xercesc/sax2/DefaultHandler.hpp>
+#include <xercesc/sax2/Attributes.hpp>
+#include <xercesc/util/XMLString.hpp>
+#include <xercesc/util/XMLChar.hpp>
+#include <xercesc/sax2/DefaultHandler.hpp>
+#include <xercesc/framework/XMLDocumentHandler.hpp>
+#include <xercesc/framework/psvi/XSElementDeclaration.hpp>
+#include <xercesc/framework/psvi/XSComplexTypeDefinition.hpp>
+#include <xercesc/framework/psvi/XSParticle.hpp>
+#include <xercesc/framework/psvi/XSModelGroup.hpp>
+#include <xercesc/framework/psvi/XSAnnotation.hpp>
+#include <xercesc/framework/psvi/XSValue.hpp>
+#include <xercesc/framework/XMLGrammarPoolImpl.hpp>
+#include <xercesc/dom/DOM.hpp>
+#include <xercesc/dom/DOMLSInput.hpp>
+#include <xercesc/dom/DOMElement.hpp>
+
+#include "../GLM.h"
+#include "Util/XercesString.h"
+#include "ResourceManager.h"
+#include "Entity.h"
+#include "ComponentInfo.h"
+
+class EntityFileHandler
+{
+    friend class EntityFileSAXHandler;
+public:
+    // @param EntityID The entity found
+    // @param EntityID The parent of the entity
+    typedef std::function<void(EntityID, EntityID, const std::string&)> OnStartEntityCallback;
+    void SetStartEntityCallback(OnStartEntityCallback c) { m_OnStartEntityCallback = c; }
+    // @param EntityID The entity the component corresponds to
+    // @param std::string Type name of the component
+    typedef std::function<void(EntityID, const std::string&)> OnStartComponentCallback;
+    void SetStartComponentCallback(OnStartComponentCallback c) { m_OnStartComponentCallback = c; }
+    // @param EntityID Entity 
+    // @param std::string Component name 
+    // @param std::string Field name
+    // @param std::map<std::string, std::string> Field attribute names and values
+    typedef std::function<void(EntityID, const std::string&, const std::string&, const std::map<std::string, std::string>&)> OnStartFieldCallback;
+    void SetStartFieldCallback(OnStartFieldCallback c) { m_OnStartFieldCallback = c; }
+    // @param EntityID Entity 
+    // @param std::string Component name 
+    // @param std::string Field name
+    // @param char* Field data
+    typedef std::function<void(EntityID, const std::string&, const std::string&, const char*)> OnStartFieldDataCallback;
+    void SetStartFieldDataCallback(OnStartFieldDataCallback c) { m_OnStartFieldDataCallback = c; }
+
+private:
+    OnStartEntityCallback m_OnStartEntityCallback = nullptr;
+    OnStartComponentCallback m_OnStartComponentCallback = nullptr;
+    OnStartFieldCallback m_OnStartFieldCallback = nullptr;
+    OnStartFieldDataCallback m_OnStartFieldDataCallback = nullptr;
+};
+
+class EntityFileSAXHandler : public xercesc::DefaultHandler
+{
+public:
+    enum class State
+    {
+        Unknown,
+        Entity,
+        EntityRef,
+        Component,
+        ComponentField
+    };
+
+    EntityFileSAXHandler(const EntityFileHandler* handler, xercesc::SAX2XMLReader* reader)
+        : m_Handler(handler)
+        , m_Reader(reader)
+    {
+        // Push first parent
+        m_EntityStack.push(EntityID_Invalid);
+        m_StateStack.push(State::Unknown);
+    }
+
+    void startElement(const XMLCh* const _uri, const XMLCh* const _localName, const XMLCh* const _qname, const xercesc::Attributes& attrs) override
+    {
+        std::string name = XS::ToString(_localName);
+        if (m_StateStack.top() == State::Unknown || m_StateStack.top() == State::Entity || m_StateStack.top() == State::EntityRef) {
+            if (name == "Entity") {
+                // Handle entity references
+                const XMLCh* refAttr = attrs.getValue(XS::ToXMLCh("ref"));
+                std::string ref = XS::ToString(refAttr);
+                if (ref.empty()) {
+                    m_StateStack.push(State::Entity);
+                    onStartEntity(attrs);
+                } else {
+                    m_StateStack.push(State::EntityRef);
+                    onStartEntityRef(ref, attrs);
+                }
+                return;
+            }
+        }
+
+        std::string uri = XS::ToString(_uri);
+        if (m_StateStack.top() == State::Entity || m_StateStack.top() == State::EntityRef) {
+            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 characters(const XMLCh* const chars, const XMLSize_t length) override
+    {
+        if (m_StateStack.top() == State::ComponentField) {
+            char* transcoded = xercesc::XMLString::transcode(chars);
+            onFieldData(transcoded);
+        }
+    }
+
+    void endElement(const XMLCh* const _uri, const XMLCh* const _localName, const XMLCh* const _qname) override
+    {
+        std::string name = XS::ToString(_localName);
+        if (m_StateStack.top() == State::Entity || m_StateStack.top() == State::EntityRef) {
+            if (name == "Entity") {
+                if (m_StateStack.top() == State::Entity) {
+                    m_StateStack.pop();
+                    if (m_StateStack.top() == State::EntityRef) {
+                        onEndEntityRef();
+                    } else {
+                        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 fatalError(const xercesc::SAXParseException& e) 
+    {
+        XS::ToString s(e.getMessage());
+        LOG_ERROR("SAXParseException: %s", ((std::string)s).c_str());
+        //throw e;
+    }
+
+private:
+    const EntityFileHandler* m_Handler;
+    xercesc::XMLGrammarPool* m_GrammarPool;
+    xercesc::SAX2XMLReader* m_Reader;
+    //State m_CurrentScope = State::Unknown;
+    std::stack<State> m_StateStack;
+    unsigned int m_NextEntityID = 0;
+    std::stack<EntityID> m_EntityStack;
+    std::string m_CurrentComponent;
+    std::string m_CurrentField;
+    std::map<std::string, std::string> m_CurrentAttributes;
+
+    void 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 onEndEntity()
+    {
+        m_EntityStack.pop();
+    }
+    void onStartEntityRef(const std::string& ref, const xercesc::Attributes& attrs)
+    {
+        xercesc::SAX2XMLReader* parser = xercesc::XMLReaderFactory::createXMLReader();
+        parser->setContentHandler(this);
+        parser->setErrorHandler(this);
+        parser->parse(ref.c_str());
+        delete parser;
+        //m_StateStack.push(State::Entity);
+    }
+    void onEndEntityRef() { }
+    void 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 onEndComponent(const std::string& name) { }
+    void 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 onEndComponentField(const std::string& field) { }
+
+    void 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);
+    }
+};
+
+class EntityFileXMLErrorHandler : public xercesc::ErrorHandler
+{
+public:
+	void warning(const xercesc::SAXParseException& e) override
+	{
+		reportParseException("Warning", e);
+	}
+	void error(const xercesc::SAXParseException& e) override
+	{
+		reportParseException("Error", e);
+	}
+	void fatalError(const xercesc::SAXParseException& e) override
+	{
+		reportParseException("FATAL ERROR", e);
+	}
+	void resetErrors() override { }
+
+private:
+	void reportParseException(std::string type, const xercesc::SAXParseException& e)
+	{
+		char* message = xercesc::XMLString::transcode(e.getMessage());
+		char* systemID = xercesc::XMLString::transcode(e.getSystemId());
+		std::cerr << systemID << ":" << e.getLineNumber() << ":" << e.getColumnNumber() << std::endl;
+		std::cerr << type << ": " << message << std::endl;
+		xercesc::XMLString::release(&systemID);
+		xercesc::XMLString::release(&message);
+	}
+};
+
+class EntityFile : public Resource
+{
+    friend class ResourceManager;
+private:
+    EntityFile(boost::filesystem::path path);
+    ~EntityFile();
+
+public:
+    static std::size_t GetTypeStride(std::string typeName);
+    static void WriteAttributeData(char* outData, const ComponentInfo::Field_t& field, const std::map<std::string, std::string>& attributes);
+    static void WriteValueData(char* outData, const ComponentInfo::Field_t& field, const char* valueData);
+
+    xercesc::XMLGrammarPool* GrammarPool() const { return m_GrammarPool; }
+
+    void Parse(const EntityFileHandler* handler) const;
+
+private:
+    boost::filesystem::path m_FilePath;
+    xercesc::XMLGrammarPool* m_GrammarPool;
+    xercesc::SAX2XMLReader* m_SAX2XMLReader;
+	//std::map<std::string, ::ComponentInfo> m_ComponentInfo;
+    //std::vector<std::string> m_EntityReferences;
+};
+
+#endif

include/Engine/Core/EntityFileParser.h

@@ -0,0 +1,28 @@
+#ifndef EntityFileParser_h__
+#define EntityFileParser_h__
+
+#include "EntityFile.h"
+#include "World.h"
+
+class EntityFileParser
+{
+public:
+    EntityFileParser(const EntityFile* entityFile);
+
+    void MergeEntities(World* world, EntityID parent = EntityID_Invalid);
+
+private:
+    const EntityFile* m_EntityFile;
+    EntityFileHandler m_Handler;
+    World* m_World = nullptr;
+    // Maps EntityIDs local to the file to real IDs in the world after they've been 
+    // created in order to resolve parent-child relationships.
+    std::map<EntityID, EntityID> m_EntityIDMapper;
+
+    void onStartEntity(EntityID entity, EntityID parent, const std::string& name);
+    void onStartComponent(EntityID entity, const std::string& component);
+    void onStartComponentField(EntityID entity, const std::string& componentType, const std::string& fieldName, const std::map<std::string, std::string>& attributes);
+    void onFieldData(EntityID entity, const std::string& componentType, const std::string& fieldName, const char* fieldData);
+};
+
+#endif

include/Engine/Core/EntityFilePreprocessor.h

@@ -0,0 +1,36 @@
+#ifndef EntityFilePreprocessor_h__
+#define EntityFilePreprocessor_h__
+
+#include <xercesc/framework/psvi/XSElementDeclaration.hpp>
+#include <xercesc/framework/psvi/XSComplexTypeDefinition.hpp>
+#include <xercesc/framework/psvi/XSParticle.hpp>
+#include <xercesc/framework/psvi/XSModelGroup.hpp>
+#include <xercesc/framework/psvi/XSAnnotation.hpp>
+#include <xercesc/framework/psvi/XSValue.hpp>
+#include <xercesc/framework/MemBufFormatTarget.hpp>
+#include <xercesc/framework/MemBufInputSource.hpp>
+#include <xercesc/parsers/XercesDOMParser.hpp>
+
+#include "Util/XercesString.h"
+#include "ResourceManager.h"
+#include "World.h"
+#include "EntityFile.h"
+
+class EntityFilePreprocessor
+{
+public:
+    EntityFilePreprocessor(const EntityFile* entityFile);
+
+    void RegisterComponents(World* world);
+
+private:
+    const EntityFile* m_EntityFile;
+    std::map<std::string, unsigned int> m_ComponentCounts;
+	std::map<std::string, ComponentInfo> m_ComponentInfo;
+
+	void onStartComponent(EntityID entity, std::string type);
+    void parseComponentInfo();
+    void parseDefaults();
+};
+
+#endif

include/Engine/Core/EntityFileWriter.h

@@ -0,0 +1,39 @@
+#ifndef EntityFileWriter_h__
+#define EntityFileWriter_h__
+
+#include <boost/filesystem.hpp>
+#include <xercesc/dom/DOM.hpp>
+#include <xercesc/util/XMLString.hpp>
+#include <xercesc/util/PlatformUtils.hpp>
+#include <xercesc/framework/LocalFileFormatTarget.hpp>
+
+#include "Util/XercesString.h"
+#include "EntityFile.h"
+#include "World.h"
+
+class EntityFileWriter
+{
+public:
+    EntityFileWriter(boost::filesystem::path file)
+        : m_FilePath(file)
+    {
+        using namespace xercesc;
+        m_DOMImplementation = DOMImplementationRegistry::getDOMImplementation(XS::ToXMLCh("LS"));
+        m_DOMLSSerializer = static_cast<DOMImplementationLS*>(m_DOMImplementation)->createLSSerializer();
+        m_DOMLSSerializer->getDomConfig()->setParameter(XMLUni::fgDOMWRTDiscardDefaultContent, true);
+        m_DOMLSSerializer->getDomConfig()->setParameter(XMLUni::fgDOMWRTFormatPrettyPrint, true);
+    }
+
+    void WriteWorld(World* world);
+    void WriteEntity(World* world, EntityID entity);
+
+private:
+    boost::filesystem::path m_FilePath;
+    xercesc::DOMImplementation* m_DOMImplementation;
+    xercesc::DOMLSSerializer* m_DOMLSSerializer;
+
+    void appendEntityChildren(xercesc::DOMElement* parentElement, const World* world, EntityID entity);
+    void appentEntityComponents(xercesc::DOMElement* parentElemetn, const World* world, EntityID entity);
+};
+
+#endif

include/Engine/Core/EntityXMLFile.h

@@ -1,141 +0,0 @@
-#ifndef EntityXMLFile_h__
-#define EntityXMLFile_h__
-
-#include <sstream>
-
-#include "../Common.h"
-#include "../GLM.h"
-#include <xercesc/dom/DOM.hpp>
-#include <xercesc/dom/DOMLSInput.hpp>
-#include <xercesc/dom/DOMElement.hpp>
-#include <xercesc/framework/Wrapper4InputSource.hpp>
-#include <xercesc/framework/LocalFileInputSource.hpp>
-#include <xercesc/framework/LocalFileFormatTarget.hpp>
-#include <xercesc/framework/MemBufFormatTarget.hpp>
-#include <xercesc/framework/MemBufInputSource.hpp>
-#include <xercesc/sax/HandlerBase.hpp>
-#include <xercesc/util/PlatformUtils.hpp>
-#include <xercesc/util/XMLFloat.hpp>
-#include <xercesc/framework/XMLGrammarPoolImpl.hpp>
-#include <xercesc/parsers/XercesDOMParser.hpp>
-#include <xercesc/framework/psvi/XSElementDeclaration.hpp>
-#include <xercesc/framework/psvi/XSComplexTypeDefinition.hpp>
-#include <xercesc/framework/psvi/XSParticle.hpp>
-#include <xercesc/framework/psvi/XSModelGroup.hpp>
-#include <xercesc/framework/psvi/XSAnnotation.hpp>
-#include <xercesc/framework/psvi/XSValue.hpp>
-#include <xercesc/framework/XMLValidator.hpp>
-
-#include "ResourceManager.h"
-#include "Entity.h"
-#include "ComponentInfo.h"
-class World;
-
-class EntityPreprocessorXMLErrorHandler : public xercesc::DOMErrorHandler
-{
-public:
-	bool handleError(const xercesc::DOMError &e) override
-	{
-		char* message = xercesc::XMLString::transcode(e.getMessage());
-		std::cerr << "Preprocessor DOMError: " << message << std::endl;
-		xercesc::XMLString::release(&message);
-		return false;
-	}
-};
-
-class EntityParserXMLErrorHandler : public xercesc::ErrorHandler
-{
-public:
-	void warning(const xercesc::SAXParseException& e) override
-	{
-		reportParseException("Warning", e);
-	}
-	void error(const xercesc::SAXParseException& e) override
-	{
-		reportParseException("Error", e);
-	}
-	void fatalError(const xercesc::SAXParseException& e) override
-	{
-		reportParseException("FATAL ERROR", e);
-	}
-	void resetErrors() override { }
-
-private:
-	void reportParseException(std::string type, const xercesc::SAXParseException& e)
-	{
-		char* message = xercesc::XMLString::transcode(e.getMessage());
-		char* systemID = xercesc::XMLString::transcode(e.getSystemId());
-		std::cerr << systemID << ":" << e.getLineNumber() << ":" << e.getColumnNumber() << std::endl;
-		std::cerr << type << ": " << message << std::endl;
-		xercesc::XMLString::release(&systemID);
-		xercesc::XMLString::release(&message);
-	}
-};
-
-class XSTR
-{
-public:
-	XSTR(const XMLCh* const xmlString) 
-	{
-		m_AsChar = xercesc::XMLString::transcode(xmlString);
-	}
-
-	XSTR(const char* normalString)
-	{
-		m_AsXMLCh = xercesc::XMLString::transcode(normalString);
-	}
-
-	~XSTR()
-	{
-		if (m_AsChar != nullptr) {
-			xercesc::XMLString::release(&m_AsChar);
-		}
-		if (m_AsXMLCh != nullptr) {
-			xercesc::XMLString::release(&m_AsXMLCh);
-		}
-	}
-
-	operator const char*() const { return m_AsChar; }
-	operator const XMLCh*() const { return m_AsXMLCh; }
-
-private:
-	char* m_AsChar = nullptr;
-	XMLCh* m_AsXMLCh = nullptr;
-};
-
-class EntityXMLFile : public Resource
-{
-	friend class ResourceManager;
-
-private:
-	EntityXMLFile(std::string path);
-
-public:
-    ~EntityXMLFile();
-
-    void PopulateWorld(World* world);
-
-private:
-    static unsigned int InstanceCount;
-
-	std::string m_EntityFile;
-	xercesc::XMLGrammarPool* m_GrammarPool = nullptr;
-	EntityParserXMLErrorHandler* m_ErrorHandler = nullptr;
-	xercesc::XercesDOMParser* m_DOMParser = nullptr;
-	xercesc::DOMDocument* m_DOMDocument = nullptr;
-	std::map<std::string, ComponentInfo> m_ComponentInfo;
-
-    // Preprocesses the entity file to insert include-by-copy child entities
-    // TODO: Make this work in memory instead of saving to file
-    void preprocess(std::string inPath, std::string outPath);
-
-    void parseComponentInfo();
-    void parseDefaults();
-    void predictComponentAllocation();
-    void parseEntityGraph(World* world, xercesc::DOMElement* parent, EntityID parentEntity);
-    std::size_t getTypeStride(std::string typeName);
-    float getFloatAttribute(const xercesc::DOMElement* element, const char* attribute) const;
-    void writeData(const xercesc::DOMElement* element, std::string typeName, char* outData);
-};
-
-#endif

include/Engine/Core/Util/XercesString.h

@@ -0,0 +1,46 @@
+#ifndef Util_XercesString_h__
+#define Util_XercesString_h__
+
+#include <string>
+#include <xercesc/util/XercesDefs.hpp>
+#include <xercesc/util/XMLString.hpp>
+
+namespace XS
+{
+
+class ToString
+{
+public:
+    ToString(const XMLCh* const str) { m_AsChar = xercesc::XMLString::transcode(str); }
+    ~ToString()
+    {
+        if (m_AsChar != nullptr) {
+            xercesc::XMLString::release(&m_AsChar);
+        }
+    }
+
+    operator std::string() const { return std::string(m_AsChar); }
+private:
+    char* m_AsChar = nullptr;
+};
+
+class ToXMLCh
+{
+public:
+    ToXMLCh(const std::string str) { m_Transcoded = xercesc::XMLString::transcode(str.c_str()); }
+    ToXMLCh(const char* str) { m_Transcoded = xercesc::XMLString::transcode(str); }
+    ~ToXMLCh()
+    {
+        if (m_Transcoded != nullptr) {
+            xercesc::XMLString::release(&m_Transcoded);
+        }
+    }
+
+    operator const XMLCh*() const { return m_Transcoded; }
+private:
+    XMLCh* m_Transcoded = nullptr;
+};
+
+}
+
+#endif

include/Engine/Core/World.h

@@ -16,13 +16,14 @@ public:
     EntityID CreateEntity(EntityID parent = 0);
     // Delete entity and all components within
     void DeleteEntity(EntityID entity);
-
+    // Check if an entity exists
+    bool ValidEntity(EntityID entity) const;
     // Register a component type and allocate space for it
     void RegisterComponent(ComponentInfo& ci);
     // Attach a component to an entity and fill it with default values
     ComponentWrapper AttachComponent(EntityID entity, std::string componentType);
     // Check if an entity has a component
-    bool HasComponent(EntityID entity, std::string componentType);
+    bool HasComponent(EntityID entity, std::string componentType) const;
     // Get a component of an entity
     ComponentWrapper GetComponent(EntityID entity, std::string componentType);
     // Delete a component off an entity
@@ -37,14 +38,19 @@ public:
     const std::unordered_map<std::string, ComponentPool*>& GetComponentPools() const { return m_ComponentPools; }
     // Get the entity children map
     const std::unordered_multimap<EntityID, EntityID>& GetEntityChildren() const { return m_EntityChildren; }
+    // Set the textual name of an entity
+    void SetName(EntityID entity, const std::string& name);
+    // Get the textual name of an entity
+    std::string GetName(EntityID entity) const;
 
 private:
-    EntityID m_CurrentEntityID = 1;
+    EntityID m_CurrentEntityID = 0;
 
     std::unordered_map<EntityID, EntityID> m_EntityParents;
     // TODO: This should be a more effective structure
     std::unordered_multimap<EntityID, EntityID> m_EntityChildren;
     std::unordered_map<std::string, ComponentPool*> m_ComponentPools;
+    std::unordered_map<EntityID, std::string> m_EntityNames;
 
     EntityID generateEntityID();
 };

include/Engine/Editor/EditorSystem.h

@@ -1,6 +1,7 @@
 #include <imgui/imgui.h>
 #include <glm/gtx/common.hpp>
 #include <boost/filesystem/path.hpp>
+#include <nativefiledialog/nfd.h>
 #include "../Core/System.h"
 #include "../Core/EMousePress.h"
 #include "../Core/EMouseRelease.h"
@@ -11,6 +12,9 @@
 #include "../Rendering/EPicking.h"
 #include "../Core/EFileDropped.h"
 #include "../Rendering/RenderQueueFactory.h"
+#include "../Core/EntityFilePreprocessor.h"
+#include "../Core/EntityFileParser.h"
+#include "../Core/EntityFileWriter.h"
 
 class EditorSystem : public ImpureSystem
 {
@@ -25,6 +29,9 @@ private:
 
     bool m_Enabled;
     bool m_Visible;
+    boost::filesystem::path m_DefaultEntityDir;
+    boost::filesystem::path m_CurrentFile;
+    std::map<boost::filesystem::path, EntityID> m_CurrentFiles;
     std::vector<glm::vec2> m_PickingQueue;
 
     enum class WidgetMode
@@ -41,22 +48,26 @@ private:
         Global
     } m_WidgetSpace = WidgetSpace::Global;
 
-    EntityID m_Widget = 0;
-    EntityID m_WidgetX = 0;
-    EntityID m_WidgetPlaneX = 0;
-    EntityID m_WidgetY = 0;
-    EntityID m_WidgetPlaneY = 0;
-    EntityID m_WidgetZ = 0;
-    EntityID m_WidgetPlaneZ = 0;
-    EntityID m_WidgetOrigin = 0;
+    EntityID m_Widget = EntityID_Invalid;
+    EntityID m_WidgetX = EntityID_Invalid;
+    EntityID m_WidgetPlaneX = EntityID_Invalid;
+    EntityID m_WidgetY = EntityID_Invalid;
+    EntityID m_WidgetPlaneY = EntityID_Invalid;
+    EntityID m_WidgetZ = EntityID_Invalid;
+    EntityID m_WidgetPlaneZ = EntityID_Invalid;
+    EntityID m_WidgetOrigin = EntityID_Invalid;
     glm::vec3 m_WidgetCurrentAxis;
     float m_WidgetPickingDepth = 0.f;
 
-    EntityID m_Selection = 0;
-    EntityID m_LastSelection = 0;
+    EntityID m_Selection = EntityID_Invalid;
+    EntityID m_LastSelection = EntityID_Invalid;
+    EntityID m_UIDraggingEntity = EntityID_Invalid;
     glm::vec3 m_Position;
     std::string m_LastDroppedFile;
 
+    static boost::filesystem::path openDialog(boost::filesystem::path defaultPath);
+    static boost::filesystem::path saveDialog(boost::filesystem::path defaultPath);
+
     EventRelay<EditorSystem, Events::InputCommand> m_EInputCommand;
     bool OnInputCommand(const Events::InputCommand& e);
     EventRelay<EditorSystem, Events::MouseRelease> m_EMouseRelease;
@@ -70,10 +81,15 @@ private:
     EventRelay<EditorSystem, Events::FileDropped> m_EFileDropped;
     bool OnFileDropped(const Events::FileDropped& e);
 
+    void createWidget();
     void updateWidget();
     void setWidgetMode(WidgetMode newMode);
     void setWidgetSpace(WidgetSpace space);
     void drawUI(World* world, double dt);
     bool createDeleteButton(std::string componentType);
+    bool createEntityNode(World* world, EntityID entity);
     void changeParent(EntityID entity, EntityID newParent);
+    void fileImport(World* world);
+    void fileSave(World* world);
+    void fileSaveAs(World* world);
 };

include/Engine/Rendering/DrawFinalPass.h

@@ -1,38 +0,0 @@
-#ifndef DrawFinalPass_h__
-#define DrawFinalPass_h__
-
-#include "IRenderer.h"
-#include "DrawFinalPassState.h"
-#include "LightCullingPass.h"
-#include "FrameBuffer.h"
-#include "ShaderProgram.h"
-#include "Util/UnorderedMapVec2.h"
-#include "Texture.h"
-
-class DrawFinalPass
-{
-public:
-    DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass);
-    ~DrawFinalPass() { }
-    void InitializeTextures();
-    void InitializeFrameBuffers();
-    void InitializeShaderPrograms();
-
-    void Draw(RenderQueueCollection& rq);
-
-    //Getters
-
-
-private:
-    void GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type) const;
-
-    Texture* m_WhiteTexture;
-
-    const IRenderer* m_Renderer;
-    const LightCullingPass* m_LightCullingPass;
-
-    ShaderProgram* m_ForwardPlusProgram;
-
-};
-
-#endif 

include/Engine/Rendering/DrawFinalPassState.h

@@ -1,15 +0,0 @@
-#ifndef DrawFinalPassState_h__
-#define DrawFinalPassState_h__
-
-#include "Rendering/RenderState.h"
-
-class DrawFinalPassState : public RenderState
-{
-public:
-    DrawFinalPassState();
-    ~DrawFinalPassState();
-private:
-
-};
-
-#endif

include/Engine/Rendering/EPicking.h

@@ -51,7 +51,7 @@ public:
         if (it != PickingColorsToEntity->end()) {
             pickData.Entity = it->second;
         } else {
-            pickData.Entity = 0;
+            pickData.Entity = EntityID_Invalid;
         }
         pickData.Position = ScreenCoords::ToWorldPos(screenCoord.x, screenCoord.y, data.Depth, Resolution, ProjectionMatrix, ViewMatrix);
 

include/Engine/Rendering/LightCullingPass.h

@@ -1,78 +0,0 @@
-#ifndef LightCullingPass_h__
-#define LightCullingPass_h__
-
-#define TILE_SIZE 16 
-#define NUM_LIGHTS 1000
-
-#include "IRenderer.h"
-#include "LightCullingPassState.h"
-#include "ShaderProgram.h"
-
-
-class LightCullingPass
-{
-public:
-    LightCullingPass(IRenderer* renderer);
-    ~LightCullingPass();
-
-    void GenerateNewFrustum();
-    void CullLights();
-    void FillLightList(RenderQueueCollection& rq);
-
-    GLuint FrustumSSBO() const { return m_FrustumSSBO; }
-    GLuint LightSSBO() const { return m_LightSSBO; }
-    GLuint LightGridSSBO() const { return m_LightGridSSBO; }
-    GLuint LightOffsetSSBO() const { return m_LightOffsetSSBO; }
-    GLuint LightIndexSSBO() const { return m_LightIndexSSBO; }
-private:
-
-    void InitializeSSBOs();
-    void InitializeShaderPrograms();
-
-    const IRenderer* m_Renderer;
-
-    GLuint m_FrustumSSBO = 0;
-    GLuint m_LightSSBO = 0;
-    GLuint m_LightGridSSBO = 0;
-    GLuint m_LightOffsetSSBO = 0;
-    GLuint m_LightIndexSSBO = 0;
-
-    ShaderProgram* m_CalculateFrustumProgram;
-    ShaderProgram* m_LightCullProgram;
-
-    struct Plane {
-        glm::vec3 Normal;
-        float d;
-    };
-
-    struct Frustum {
-        Plane Planes[4];
-    };
-    Frustum m_Frustums[80*45]; //TODO: Renderer: Make this change with resolution
-
-    //This should be a component
-    struct PointLight {
-        glm::vec4 Position = glm::vec4(0.f);
-        glm::vec4 Color = glm::vec4(1.f);
-        float Radius = 5.f;
-        float Intensity = 0.8f;
-        float Falloff = 0.3f;
-        float Padding = 1337;
-    };
-    std::vector<PointLight> m_PointLights;
-
-    struct LightGrid {
-        float Start;
-        float Amount;
-        glm::vec2 Padding;
-    };
-
-    LightGrid m_LightGrid[80*45]; //TODO: Renderer: Make this change with resolution
-
-    int m_LightOffset = 0;
-
-    float m_LightIndex[80*45*200]; //TODO: Renderer: Make this change with resolution
-};
-
-
-#endif

include/Engine/Rendering/PickingPass.h

@@ -1,8 +1,6 @@
 #ifndef PickingPass_h__
 #define PickingPass_h__
 
-
-
 #include "IRenderer.h"
 #include "PickingPassState.h"
 #include "FrameBuffer.h"
@@ -11,8 +9,6 @@
 #include "../Core/EventBroker.h"
 #include "EPicking.h"
 
-
-
 class PickingPass
 {
 public:
@@ -24,6 +20,7 @@ public:
 
     void Draw(RenderQueueCollection& rq);
 
+
     //Getters
     const ShaderProgram& PickingProgram() const { return *m_PickingProgram; }
     const std::unordered_map<glm::vec2, EntityID>& PickingColorsToEntity() const { return m_PickingColorsToEntity; }
@@ -31,6 +28,7 @@ public:
     GLuint DepthBuffer() const { return m_DepthBuffer; }
     const FrameBuffer& PickingBuffer() const { return m_PickingBuffer; }
 
+
 private:
     void GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type) const;
 

include/Engine/Rendering/RenderQueue.h

@@ -82,12 +82,11 @@ struct SpriteJob : RenderJob
 
 struct PointLightJob : RenderJob
 {
-    glm::vec4 Position;
-	glm::vec4 Color;
-	float Radius;
-    float Intensity;
-    float Falloff;
-    float padding = 123;
+	glm::vec3 Position;
+	glm::vec3 SpecularColor = glm::vec3(1, 1, 1);
+	glm::vec3 DiffuseColor = glm::vec3(1, 1, 1);
+	float Radius = 1.f;
+    float Intensity = 0.8f;
 
 	void CalculateHash() override
 	{

include/Engine/Rendering/Renderer.h

@@ -13,8 +13,19 @@
 #include "PickingPass.h"
 #include "DrawScenePass.h"
 #include "DebugCameraInputController.h"
-#include "LightCullingPass.h"
-#include "DrawFinalPass.h"
+
+
+#define TILE_SIZE 16 
+#define NUM_LIGHTS 3
+
+
+enum lightType 
+{
+    Point,
+    Spot,
+    Directional,
+    Area
+};
 
 #include "../Core/EventBroker.h"
 #include "EPicking.h"
@@ -47,24 +58,70 @@ private:
 
     DrawScenePass* m_DrawScenePass;
     PickingPass* m_PickingPass;
-    LightCullingPass* m_LightCullingPass;
     ImGuiRenderPass* m_ImGuiRenderPass;
-    DrawFinalPass* m_DrawFinalPass;
 
     //----------------------Functions----------------------//
     void InitializeWindow();
     void InitializeShaders();
     void InitializeTextures();
+    void InitializeSSBOs();
     void InitializeRenderPasses();
     //TODO: Renderer: Get InputUpdate out of renderer
     void InputUpdate(double dt);
     //void PickingPass(RenderQueueCollection& rq);
     void DrawScreenQuad(GLuint textureToDraw);
 
+    //----------------------Forward+-----------------------//
+    void CalculateFrustum();
+    void CullLights();
+    //Frustum
+    struct Plane {
+        glm::vec3 Normal;
+        float d;
+    };
+    struct Frustum {
+        Plane Planes[4];
+    };
+    Frustum m_Frustums[80*45]; //TODO: Renderer: Make this change with resolution
+
+    //Lights
+    void TEMPCreateLights();
+    //TODO: Renderer: Add Directionllights, spotlights and area lights to this as type.
+    struct PointLight {
+        glm::vec4 Position = glm::vec4(0.f);
+        glm::vec4 Color = glm::vec4(1.f);
+        float Radius = 5.f;
+        float Intensity = 0.8f;
+        float Falloff = 0.3f;
+        float Padding = 1337;
+    };
+    PointLight m_PointLights[NUM_LIGHTS];
+
+    struct LightGrid {
+        int Amount;
+        int Start;
+        glm::vec2 Padding;
+    };
+    LightGrid m_LightGrid[80*45];
+
+    int m_LightOffset = 0;
+
+    int m_LightIndex[80*45*200];
+
+    //-------------------------SSBO------------------------//
+    GLuint m_FrustumSSBO = 0;
+    GLuint m_LightSSBO = 1;
+    GLuint m_LightGridSSBO = 2;
+    GLuint m_LightOffsetSSBO = 3;
+    GLuint m_LightIndexSSBO = 4;
+
     void GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type);
 	//--------------------ShaderPrograms-------------------//
 	ShaderProgram* m_BasicForwardProgram;
     ShaderProgram* m_DrawScreenQuadProgram;
+    ShaderProgram* m_CalculateFrustumProgram;
+    ShaderProgram* m_LightCullProgram;
+
 };
 
 #endif

include/Game/Game.h

@@ -13,11 +13,13 @@
 #include "Input/KeyboardInputHandler.h"
 #include "Input/MouseInputHandler.h"
 #include "Core/EKeyDown.h"
-#include "Core/EntityXMLFile.h"
+#include "Core/EntityFilePreprocessor.h"
 #include "Core/SystemPipeline.h"
 #include "RaptorCopterSystem.h"
 #include "PlayerSystem.h"
 #include "Editor/EditorSystem.h"
+#include "Core/EntityFile.h"
+#include "Core/EntityFileParser.h"
 
 // Network
 #include <boost/thread.hpp>

resources/Schema/Components.xsd

@@ -7,7 +7,6 @@
 	<xs:include schemaLocation="Components/RaptorCopter.xsd"/>
 	<xs:include schemaLocation="Components/Player.xsd"/>
 	<xs:include schemaLocation="Components/AABB.xsd"/>
-	<xs:include schemaLocation="Components/PointLight.xsd"/>
 	<xs:include schemaLocation="Components/Trigger.xsd"/>
 	<xs:include schemaLocation="Components/Health.xsd"/>
 </xs:schema>

resources/Schema/Components/PointLight.xml

@@ -1,7 +0,0 @@
-<c:PointLight>
-	<Color R="1" G="1" B="1" A="1"/>
-	<Radius>1.0</Radius>
-	<Intensity>0.8</Intensity>
-	<Falloff>0.3</Falloff>
-	<Visible>true</Visible>
-</c:PointLight>

resources/Schema/Components/PointLight.xsd

@@ -1,20 +0,0 @@
-<?xml version="1.0"?>
-
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:t="types">
-	<xs:import schemaLocation="../Types.xsd" namespace="types"/>
-
-	<xs:element name="PointLight">
-		<xs:annotation>
-			<xs:documentation>A pointlight that lights up geometry in a radius.</xs:documentation>
-		</xs:annotation>
-		<xs:complexType>
-			<xs:all>
-				<xs:element name="Color" type="t:Color" minOccurs="0"/>
-				<xs:element name="Radius" type="t:double" minOccurs="0"/>
-				<xs:element name="Intensity" type="t:double" minOccurs="0"/>
-				<xs:element name="Falloff" type="t:double" minOccurs="0"/>
-				<xs:element name="Visible" type="t:bool" minOccurs="0"/>
-			</xs:all>
-		</xs:complexType>
-	</xs:element>
-</xs:schema>

resources/Schema/Entities/Empty.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<Entity xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../Types/Entity.xsd" xmlns:c="components">
+  <Components>
+    <c:Transform/>
+  </Components>
+</Entity>

resources/Schema/Entities/EntityRefTest.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<Entity xmlns:c="components" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../Types/Entity.xsd">
+
+	<Components>
+	<c:Transform/>
+	</Components>
+
+	<Children>
+		<Entity ref="Schema/Entities/RaptorCopter.xml">
+			<Components>
+				<c:Transform>
+					<Position X="1" Y="2" Z="3" />
+				</c:Transform>
+			</Components>
+		</Entity>
+	</Children>
+
+</Entity>

resources/Schema/Entities/RaptorCopter.xml

@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<Entity xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xi="http://www.w3.org/2001/XInclude" xsi:noNamespaceSchemaLocation="../Types/Entity.xsd" xmlns:c="components" name="RaptorCopter">
+	<Components>
+		<c:Transform>
+			<Position X="0" Y="0"/>
+			<Orientation X="0.0" Y="0" Z="0.0"/>
+		</c:Transform>
+		<c:Model>
+			<Resource>Models/Core/UnitRaptor.obj</Resource>
+			<Color R="1" G="0.4" B="0.8"/>
+		</c:Model>
+	</Components>
+	<Children>
+		<Entity>
+			<Components>
+				<c:Transform>
+					<Position X="0" Y="0"/>
+					<Orientation X="0" Y="0" Z="0"/>
+				</c:Transform>
+				<c:RaptorCopter>
+					<Speed>20</Speed>
+					<Axis Y="1"/>
+				</c:RaptorCopter>
+			</Components>
+			<Children>
+				<Entity>
+					<Components>
+						<c:Transform>
+							<Position X="0" Y="0.4"/>
+							<Scale X="0.1" Y="0.4" Z="0.1"/>
+						</c:Transform>
+						<c:Model>
+							<Resource>Models/Core/UnitCylinder.obj</Resource>
+							<Color R="1" G="0.4" B="0.8"/>
+						</c:Model>
+					</Components>
+				</Entity>
+				<Entity>
+					<Components>
+						<c:Transform>
+							<Position X="0" Y="0.6"/>
+							<Scale X="1.7" Y="0.03" Z="0.1"/>
+							<Orientation X="0" Y="0" Z="0"/>
+						</c:Transform>
+						<c:Model>
+							<Resource>Models/Core/UnitCube.obj</Resource>
+							<Color R="1" G="0.4" B="0.8"/>
+						</c:Model>
+					</Components>
+				</Entity>
+				<Entity>
+					<Components>
+						<c:Transform>
+							<Position X="0" Y="0.6"/>
+							<Scale X="1.7" Y="0.03" Z="0.1"/>
+							<Orientation X="0" Y="1.57" Z="0"/>
+						</c:Transform>
+						<c:Model>
+							<Resource>Models/Core/UnitCube.obj</Resource>
+							<Color R="1" G="0.4" B="0.8"/>
+						</c:Model>
+					</Components>
+				</Entity>
+			</Children>
+		</Entity>
+	</Children>
+</Entity>

resources/Schema/Entities/Test.xml

@@ -10,7 +10,7 @@
 		</c:Model>
 	</Components>
 	<Children>
-		<!--<Entity>
+		<Entity>
 			<Components>
 				<c:Transform>
 					<Position X="-1.5"/>
@@ -20,8 +20,8 @@
 					<Resource>Models/ScaleWidget.obj</Resource>
 				</c:Model>
 			</Components>
-		</Entity>-->
-		<!--<Entity>
+		</Entity>
+		<Entity>
 			<Components>
 				<c:Transform>
 					<Position X="1.5"/>
@@ -33,7 +33,7 @@
 				<c:Trigger>
 				</c:Trigger>
 			</Components>
-		</Entity>-->
+		</Entity>
 		<!--<Entity>
 			<Components>
 				<c:Player>

resources/Schema/Types/Entity.xsd

@@ -16,7 +16,6 @@
 							<xs:element ref="c:RaptorCopter" minOccurs="0"/>
 							<xs:element ref="c:Player" minOccurs="0"/>
 							<xs:element ref="c:Health" minOccurs="0"/>
-							<xs:element ref="c:PointLight" minOccurs="0"/>
 						</xs:all>
 					</xs:complexType>
 				</xs:element>
@@ -30,6 +29,8 @@
 				</xs:element>
 			</xs:all>
 			<xs:attribute ref="xml:base"/>
+			<xs:attribute name="name" type="xs:string" minOccurs="0" default=""/>
+			<xs:attribute name="ref" type="xs:string" minOccurs="0" default=""/>
 		</xs:complexType>
 	</xs:element>
 </xs:schema>

resources/Shaders/CullLights.comp.glsl

@@ -1,154 +0,0 @@
-#version 430
-
-//in uvec3 gl_NumWorkGroups;			//contains the number of workgroups that have been dispatched to a compute shader
-//in uvec3 gl_WorkGroupID;				//contains the index of the workgroup currently being operated on by a compute shader
-//in uvec3 gl_LocalInvocationID;		//contains the index of work item currently being operated on by a compute shader
-//in uvec3 gl_GlobalInvocationID;		//contains the global index of work item currently being operated on by a compute shader
-//in uint  gl_LocalInvocationIndex;		//contains the local linear index of work item currently being operated on by a compute shader
-
-
-
-#define MAX_LIGHTS_PER_TILE 200
-#define NUM_TILES 3600
-#define TILE_SIZE 16
-
-uniform mat4 V;
-
-struct Plane {
-	vec3 Normal;
-	float d;
-};
-struct Frustum {
-	Plane Planes[4];
-};
-
-layout (std430, binding = 0) buffer FrustumBuffer
-{
-	Frustum Data[];
-} Frustums;
-
-struct PointLight {
-	vec4 Position;
-	vec4 Color;
-	float Radius;
-	float Intensity;
-	float Falloff;
-	float Padding;
-};
-
-layout (std430, binding = 1) buffer LightBuffer
-{
-	PointLight List[];
-} PointLights;
-
-struct LightGrid {
-	float Start;
-	float Amount;
-	vec2 Padding;
-};
-
-layout (std430, binding = 2) buffer LightGridBuffer
-{
-	LightGrid Data[];
-} LightGrids;
-
-layout (std430, binding = 3) buffer LightOffsetBuffer
-{
-	int LightOffset[];
-};
-
-layout (std430, binding = 4) buffer LightIndexBuffer
-{
-	float LightIndex[];
-};
-
-shared int GroupLightCount;
-shared int GroupLightIndexStartOffset;
-shared int GroupLightIndex[MAX_LIGHTS_PER_TILE];
-shared Frustum GroupFrustum;
-int GroupIndex;
-
-bool SphereInsidePlane(vec3 center, float radius, Plane plane)
-{
-	return dot(plane.Normal, center) - plane.d > -radius;
-}
-
-bool SphereInsideFrustrum(vec3 center, float radius, Frustum frustum/*, float zNear, float zFar*/)
-{
-
-	//Check depth here
-	//if ( sphere.c.z - sphere.r > zNear || sphere.c.z + sphere.r < zFar )
-    //{
-    //    result = false;
-    //}
- 
- 	for (int i =0; i < 4; i++)
- 	{
- 		if(! SphereInsidePlane(center, radius, frustum.Planes[i]))
- 		{
- 			return false;
- 		}
- 	}
- 	return true;
-}
-
-void AppendLight(int li)
-{
-	int index;
-	index = atomicAdd(GroupLightCount, 1);
-	if( index < MAX_LIGHTS_PER_TILE )
-	{ 
-		GroupLightIndex[index] = int(li);
-	}
-}
-
-layout (local_size_x = 16, local_size_y = 16, local_size_z = 1) in;
-void main ()
-{
-	GroupIndex = int(gl_WorkGroupID.x + (gl_WorkGroupID.y * 80));
-	if(gl_LocalInvocationIndex == 0)
-	{
-		GroupLightCount = 0;
-		GroupFrustum = Frustums.Data[GroupIndex];
-	}
-
-	barrier();
-	memoryBarrierShared();
-
-	for(int i = int(gl_LocalInvocationIndex); i < PointLights.List.length(); i += TILE_SIZE*TILE_SIZE)
-	{
-		PointLight light = PointLights.List[i];
-
-		//if pointlight
-		//Pos i view antagligen
-		if(SphereInsideFrustrum( vec3(V * light.Position), light.Radius, GroupFrustum))
-		{
-			//TODO: Fix transparent and opaque list, and depth test.
-			AppendLight( i );
-		}
-
-
-		//if conelight
-
-		//if directional
-
-	}
-
-	barrier();
-	memoryBarrierShared();
-
-	if(gl_LocalInvocationIndex == 0)
-	{
-		GroupLightIndexStartOffset = atomicAdd(LightOffset[0], GroupLightCount);
-		LightGrids.Data[GroupIndex].Start = GroupLightIndexStartOffset;
-		LightGrids.Data[GroupIndex].Amount = GroupLightCount;
-	}
-
-	barrier();
-	
-
-	for (uint i = gl_LocalInvocationIndex; i < GroupLightCount; i += TILE_SIZE * TILE_SIZE )
-	{
-	    LightIndex[GroupLightIndexStartOffset + i] = GroupLightIndex[i];
-	}
-}

resources/Shaders/ForwardPlus.frag.glsl

@@ -1,132 +0,0 @@
-#version 430
-
-uniform mat4 M;
-uniform mat4 V;
-uniform mat4 P;
-uniform vec4 Color;
-
-uniform sampler2D texture0;
-
-#define TILE_SIZE 16
-
-struct PointLight {
-	vec4 Position;
-	vec4 Color;
-	float Radius;
-	float Intensity;
-	float Falloff;
-	float Padding;
-};
-
-layout (std430, binding = 1) buffer LightBuffer
-{
-	PointLight List[];
-} PointLights;
-
-struct LightGrid {
-	float Start;
-	float Amount;
-	vec2 Padding;
-};
-
-layout (std430, binding = 2) buffer LightGridBuffer
-{
-	LightGrid Data[];
-} LightGrids;
-
-layout (std430, binding = 4) buffer LightIndexBuffer
-{
-	float LightIndex[];
-};
-
-
-in VertexData{
-	vec3 Position;
-	vec3 Normal;
-	vec2 TextureCoordinate;
-	vec4 DiffuseColor;
-}Input;
-
-out vec4 fragmentColor;
-
-vec4 scene_ambient = vec4(0.3,0.3,0.3,1);
-
-struct LightResult {
-	vec4 Diffuse;
-	vec4 Specular;
-};
-
-float CalcAttenuation(float radius, float dist) {
-	return 1.0 - smoothstep(radius * 0.3, radius, dist);
-}
-
-vec4 CalcSpecular(vec4 lightColor, vec4 viewVec,  vec4 lightVec, vec4 normal) {
-	vec4 R = normalize( reflect(-lightVec, normal));
-	float RdotV = max( dot(R, viewVec), 0.0);
-	return lightColor * pow(RdotV, 90.0);
-}
-
-vec4 CalcDiffuse(vec4 lightColor, vec4 lightVec, vec4 normal) {
-	float power = max( dot(normal, lightVec), 0.0);
-	return lightColor * power;
-}
-
-LightResult CalcPointLight(vec4 lightPos, float lightRadius, vec4 lightColor, float intensity, vec4 viewVec, vec4 position, vec4 normal)
-{
-	vec4 L = lightPos - position;
-	float dist = length(L);
-	L = normalize(L);
-
-	float attenuation = CalcAttenuation(lightRadius, dist);
-
-	LightResult result;
-	result.Diffuse = CalcDiffuse(lightColor, L, normal) * attenuation * intensity;
-	result.Specular = CalcSpecular(lightColor, viewVec, L, normal) * attenuation *  intensity;
-	return result;
-}
-
-
-void main()
-{
-	vec4 texel = texture2D(texture0, Input.TextureCoordinate);
-	vec4 position = V * M * vec4(Input.Position, 1.0); 
-	vec4 normal = V  * vec4(Input.Normal, 0.0);
-	vec4 viewVec = normalize(-position); 
-
-	vec2 tilePos;
-	tilePos.x = int(gl_FragCoord.x/16);
-	tilePos.y = int(gl_FragCoord.y/16);
-
-	LightResult totalLighting;
-	totalLighting.Diffuse = scene_ambient;
-	int currentTile = int(floor(gl_FragCoord.x/TILE_SIZE) + (floor(gl_FragCoord.y/TILE_SIZE) * 80));
-
-	int start = int(LightGrids.Data[currentTile].Start);
-	int amount = int(LightGrids.Data[currentTile].Amount);
-	//for(int i = 0; i < 3; i++)
-	for(int i = start; i < start + amount; i++)
-	{
-		int l = int(LightIndex[i]);
-
-		LightResult result = CalcPointLight(V * PointLights.List[l].Position, PointLights.List[l].Radius, PointLights.List[l].Color, PointLights.List[l].Intensity, viewVec, position, normal);
-
-		totalLighting.Diffuse += result.Diffuse;
-		totalLighting.Specular += result.Specular;
-	}
-
-	fragmentColor += Input.DiffuseColor * (totalLighting.Diffuse + totalLighting.Specular) * texel * Color;
-	//fragmentColor += Input.DiffuseColor * (totalLighting.Diffuse) * texel * Color;
-	//fragmentColor += vec4(0.0, LightGrids.Data[currentTile].Amount/3.0, 0, 1);
-	//fragmentColor = texel * Input.DiffuseColor * Color;
-	if(int(gl_FragCoord.x)%16 == 0 || int(gl_FragCoord.y)%16 == 0 )
-	{
-		//fragmentColor += vec4(0.5, 0, 0, 0);
-	} else {
-		//fragmentColor += vec4(LightGrids.Data[int(tilePos.x + tilePos.y*80)].Amount/3.0, 0, 0, 1);
-
-
-	}
-
-}
-
-

resources/Shaders/ForwardPlus.vert.glsl

@@ -1,34 +0,0 @@
-#version 430
-
-uniform mat4 M;
-uniform mat4 V;
-uniform mat4 P;
-
-layout(location = 0) in vec3 Position;
-layout(location = 1) in vec3 Normal;
-layout(location = 2) in vec3 Tangent;
-layout(location = 3) in vec3 BiTangent;
-layout(location = 4) in vec2 TextureCoords;
-layout(location = 5) in vec4 DiffuseVertexColor;
-layout(location = 6) in vec4 SpecularVertexColor;
-layout(location = 7) in vec4 BoneIndices1;
-layout(location = 8) in vec4 BoneIndices2;
-layout(location = 9) in vec4 BoneWeights1;
-layout(location = 10) in vec4 BoneWeights2;
-
-out VertexData{
-	vec3 Position;
-	vec3 Normal;
-	vec2 TextureCoordinate;
-	vec4 DiffuseColor;
-}Output;
-
-void main()
-{
-	gl_Position = P*V*M * vec4(Position, 1.0);
-
-	Output.Position = Position;
-	Output.TextureCoordinate = TextureCoords;
-	Output.Normal = Normal;
-	Output.DiffuseColor = DiffuseVertexColor;
-}

resources/Shaders/GridFrustum.comp.glsl

@@ -16,7 +16,7 @@ struct Frustum {
 
 layout (std430, binding = 0) buffer FrustumBuffer
 {
-	Frustum Data[];
+	Frustum Data[3600];
 } Frustums;
 
 vec4 ConvertToView(vec4 ScreenCoords)
@@ -43,34 +43,31 @@ Plane ComputePlane( vec3 p0, vec3 p1, vec3 p2 )
 layout (local_size_x = 16, local_size_y = 16, local_size_z = 1) in;
 void main ()
 {
-	//Top-Left = 0 		| Top-Right = 1 
-	//Bottom-Left = 2 	| Bottom-Right = 3
-	vec4 ScreenCoords[4];
-	ScreenCoords[0] = vec4(gl_GlobalInvocationID.x 		 * TILE_SIZE, 	(gl_GlobalInvocationID.y + 1) * TILE_SIZE, -1.0, 1.0);
-	ScreenCoords[1] = vec4((gl_GlobalInvocationID.x + 1) * TILE_SIZE, 	(gl_GlobalInvocationID.y + 1) * TILE_SIZE, -1.0, 1.0);
-	ScreenCoords[2] = vec4(gl_GlobalInvocationID.x 		 * TILE_SIZE, 	(gl_GlobalInvocationID.y)	  * TILE_SIZE, 	-1.0, 1.0);
-	ScreenCoords[3] = vec4((gl_GlobalInvocationID.x + 1) * TILE_SIZE, 	(gl_GlobalInvocationID.y) 	  * TILE_SIZE, 	-1.0, 1.0);
+	if(gl_GlobalInvocationID.x * TILE_SIZE < ScreenDimensions.x && gl_GlobalInvocationID.y * TILE_SIZE < ScreenDimensions.y) {
+		//Top-Left = 0 		| Top-Right = 1 
+		//Bottom-Left = 2 	| Bottom-Right = 3
+		vec4 ScreenCoords[4];
+		ScreenCoords[0] = vec4(gl_GlobalInvocationID.x 		 * TILE_SIZE, 	(gl_GlobalInvocationID.y + 1       ) * TILE_SIZE, -1.0, 1.0); // Z-axis might need to be 1
+		ScreenCoords[1] = vec4((gl_GlobalInvocationID.x + 1) * TILE_SIZE, 	(gl_GlobalInvocationID.y + 1) * TILE_SIZE, -1.0, 1.0);
+		ScreenCoords[2] = vec4(gl_GlobalInvocationID.x 		 * TILE_SIZE, 	(gl_GlobalInvocationID.y)	  * TILE_SIZE, 	-1.0, 1.0);
+		ScreenCoords[3] = vec4((gl_GlobalInvocationID.x + 1) * TILE_SIZE, 	(gl_GlobalInvocationID.y) 	  * TILE_SIZE, 	-1.0, 1.0);
 
+		vec3 ViewVectors[4];
+		for(int i = 0; i < 4; i++) {
+			ViewVectors[i] = vec3(ConvertToView(ScreenCoords[i]));
+		}
+	
+		vec3 EyePos = vec3(0,0,0);
 
-
-	vec3 ViewVectors[4];
-	for(int i = 0; i < 4; i++) {
-		ViewVectors[i] = vec3(ConvertToView(ScreenCoords[i]));
-	}
-
-	vec3 EyePos = vec3(0.0, 0.0 ,0.0);
-
-	Frustum f;
-	f.Planes[0] = ComputePlane(EyePos, ViewVectors[2], ViewVectors[0]); // left plane
-	f.Planes[1] = ComputePlane(EyePos, ViewVectors[1], ViewVectors[3]); // right plane
-	f.Planes[2] = ComputePlane(EyePos, ViewVectors[0], ViewVectors[1]);	// top plane
-	f.Planes[3] = ComputePlane(EyePos, ViewVectors[3], ViewVectors[2]); // bottom plane
+		Frustum f;
+		f.Planes[0] = ComputePlane(EyePos, ViewVectors[2], ViewVectors[0]);
+		f.Planes[1] = ComputePlane(EyePos, ViewVectors[1], ViewVectors[3]);
+		f.Planes[2] = ComputePlane(EyePos, ViewVectors[0], ViewVectors[1]);
+		f.Planes[3] = ComputePlane(EyePos, ViewVectors[3], ViewVectors[2]);
 
 
 
 	
-	if ( gl_GlobalInvocationID.x < ScreenDimensions.x / TILE_SIZE && gl_GlobalInvocationID.y < ScreenDimensions.y / TILE_SIZE ) { // inside the screen
-        Frustums.Data[gl_GlobalInvocationID.x + gl_GlobalInvocationID.y*80] = f;	
-
-    }
+		Frustums.Data[gl_GlobalInvocationID.x + gl_GlobalInvocationID.y*80] = f;	
+	}
 }

resources/Shaders/cullLights.comp.glsl

@@ -0,0 +1,35 @@
+#version 430
+
+//in uvec3 gl_NumWorkGroups;
+//in uvec3 gl_WorkGroupID;
+//in uvec3 gl_LocalInvocationID;
+//in uvec3 gl_GlobalInvocationID;
+//in uint  gl_LocalInvocationIndex;
+
+
+
+#define NUM_LIGHTS 3
+#define MAX_LIGHTS_PER_TILE 200
+#define NUM_TILES 3600
+
+struct Plane {
+	vec3 Normal;
+	float d;
+};
+struct Frustum {
+	Plane Planes[4];
+};
+
+layout (std430, binding = 0) buffer FrustumBuffer
+{
+	Frustum Data[3600];
+} Frustums;
+
+
+
+layout (local_size_x = 16, local_size_y = 16, local_size_z = 1) in;
+void main ()
+{
+		if(1 == 1) {
+	}
+}

src/Engine/CMakeLists.txt

@@ -90,12 +90,27 @@ set(SOURCE_FILES
     ${SOURCE_FILES_Rendering}
     ${SOURCE_FILES_Rendering_Util}
     ${SOURCE_FILES_Collision}
+	${SOURCE_FILES_Editor}
 	${CMAKE_SOURCE_DIR}/deps/include/imgui/imgui.cpp
 	${CMAKE_SOURCE_DIR}/deps/include/imgui/imgui_draw.cpp
 	${CMAKE_SOURCE_DIR}/deps/include/imgui/imgui_demo.cpp
-	${SOURCE_FILES_Editor}
+	${CMAKE_SOURCE_DIR}/deps/include/nativefiledialog/nfd_common.c
 )
 
+# nativefiledialog
+if(WIN32)
+	set(SOURCE_FILES ${SOURCE_FILES}
+		${CMAKE_SOURCE_DIR}/deps/include/nativefiledialog/nfd_win.cpp
+	)
+endif()
+if(UNIX)
+	set(SOURCE_FILES ${SOURCE_FILES}
+		${CMAKE_SOURCE_DIR}/deps/include/nativefiledialog/nfd_gtk.c
+		# TODO: Link with GTK+ here!
+	)
+endif()
+
+
 set(LIBRARIES
     ${OPENGL_LIBRARIES}
     ${GLEW_LIBRARIES}

src/Engine/Core/EntityFile.cpp

@@ -0,0 +1,95 @@
+#include "Core/EntityFile.h"
+
+EntityFile::EntityFile(boost::filesystem::path path)
+    : m_FilePath(path)
+{
+    using namespace xercesc;
+    XMLPlatformUtils::Initialize();
+    m_GrammarPool = new XMLGrammarPoolImpl();
+    m_SAX2XMLReader = XMLReaderFactory::createXMLReader(XMLPlatformUtils::fgMemoryManager, m_GrammarPool);
+}
+
+EntityFile::~EntityFile()
+{
+    delete m_SAX2XMLReader;
+    delete m_GrammarPool;
+    xercesc::XMLPlatformUtils::Terminate();
+}
+
+void EntityFile::Parse(const EntityFileHandler* handler) const
+{
+    using namespace xercesc;
+
+    EntityFileSAXHandler saxHandler(handler, m_SAX2XMLReader);
+    m_SAX2XMLReader->setFeature(XMLUni::fgXercesCacheGrammarFromParse, true);
+    m_SAX2XMLReader->setFeature(XMLUni::fgXercesUseCachedGrammarInParse, true);
+    m_SAX2XMLReader->setContentHandler(&saxHandler);
+    m_SAX2XMLReader->setErrorHandler(&saxHandler);
+    m_SAX2XMLReader->setDeclarationHandler(&saxHandler);
+    m_SAX2XMLReader->parse(m_FilePath.string().c_str());
+}
+
+std::size_t EntityFile::GetTypeStride(std::string typeName)
+{
+    std::map<std::string, size_t> typeStrides{
+        { "bool", sizeof(bool) },
+        { "int", sizeof(int) },
+        { "float", sizeof(float) },
+        { "double", sizeof(double) },
+        { "string", sizeof(std::string) },
+        { "Vector", sizeof(glm::vec3) },
+        { "Quaternion", sizeof(glm::quat) },
+        { "Color", sizeof(glm::vec4) }
+    };
+
+    auto it = typeStrides.find(typeName);
+    return (it != typeStrides.end()) ? it->second : 0;
+}
+
+void EntityFile::WriteAttributeData(char* outData, const ComponentInfo::Field_t& field, const std::map<std::string, std::string>& attributes)
+{
+    if (field.Type == "Vector") {
+        glm::vec3 vec;
+        vec.x = boost::lexical_cast<float>(attributes.at("X"));
+        vec.y = boost::lexical_cast<float>(attributes.at("Y"));
+        vec.z = boost::lexical_cast<float>(attributes.at("Z"));
+        memcpy(outData, reinterpret_cast<char*>(&vec), field.Stride);
+    } else if (field.Type == "Color") {
+        glm::vec4 vec;
+        vec.r = boost::lexical_cast<float>(attributes.at("R"));
+        vec.g = boost::lexical_cast<float>(attributes.at("G"));
+        vec.b = boost::lexical_cast<float>(attributes.at("B"));
+        vec.a = boost::lexical_cast<float>(attributes.at("A"));
+        memcpy(outData, reinterpret_cast<char*>(&vec), field.Stride);
+    } else if (field.Type == "Quaternion") {
+        glm::quat q;
+        q.x = boost::lexical_cast<float>(attributes.at("X"));
+        q.y = boost::lexical_cast<float>(attributes.at("Y"));
+        q.z = boost::lexical_cast<float>(attributes.at("Z"));
+        q.w = boost::lexical_cast<float>(attributes.at("W"));
+        memcpy(outData, reinterpret_cast<char*>(&q), field.Stride);
+    } else if (!attributes.empty()) {
+        LOG_WARNING("%i attributes not handled by any type conversion!", attributes.size());
+    }
+}
+
+void EntityFile::WriteValueData(char* outData, const ComponentInfo::Field_t& field, const char* valueData)
+{
+    if (field.Type == "int") {
+        int value = boost::lexical_cast<int>(valueData);
+        memcpy(outData, reinterpret_cast<char*>(&value), field.Stride);
+    } else if (field.Type == "float") {
+        float value = boost::lexical_cast<float>(valueData);
+        memcpy(outData, reinterpret_cast<char*>(&value), field.Stride);
+    } else if (field.Type == "double") {
+        double value = boost::lexical_cast<double>(valueData);
+        memcpy(outData, reinterpret_cast<char*>(&value), field.Stride);
+    } else if (field.Type == "bool") {
+        bool value = (valueData[0] == 't'); // Lazy bool evaluation
+        memcpy(outData, reinterpret_cast<char*>(&value), field.Stride);
+    } else if (field.Type == "string") {
+        new (outData) std::string(valueData);
+    } else {
+        LOG_WARNING("Unknown value data type: %s", field.Type.c_str());
+    }
+}

src/Engine/Core/EntityFileParser.cpp

@@ -0,0 +1,61 @@
+#include "Core/EntityFileParser.h"
+
+EntityFileParser::EntityFileParser(const EntityFile* entityFile) 
+    : m_EntityFile(entityFile)
+{
+    m_Handler.SetStartEntityCallback(std::bind(&EntityFileParser::onStartEntity, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
+    m_Handler.SetStartComponentCallback(std::bind(&EntityFileParser::onStartComponent, this, std::placeholders::_1, std::placeholders::_2));
+    m_Handler.SetStartFieldCallback(std::bind(&EntityFileParser::onStartComponentField, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4));
+    m_Handler.SetStartFieldDataCallback(std::bind(&EntityFileParser::onFieldData, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4));
+}
+
+void EntityFileParser::MergeEntities(World* world, EntityID parent /*= EntityID_Invalid*/)
+{
+    m_World = world;
+    m_EntityIDMapper[EntityID_Invalid] = parent;
+    m_EntityFile->Parse(&m_Handler);
+}
+
+void EntityFileParser::onStartEntity(EntityID entity, EntityID parent, const std::string& name)
+{
+    EntityID realParent = m_EntityIDMapper.at(parent);
+    EntityID realEntity = m_World->CreateEntity(realParent);
+    if (!name.empty()) {
+        m_World->SetName(realEntity, name);
+    }
+    m_EntityIDMapper[entity] = realEntity;
+    LOG_DEBUG("Created entity #%i (%i) with parent %i (%i)", entity, realEntity, parent, realParent);
+}
+
+void EntityFileParser::onStartComponent(EntityID entity, const std::string& component)
+{
+    EntityID realEntity = m_EntityIDMapper.at(entity);
+    m_World->AttachComponent(realEntity, component);
+    LOG_DEBUG("Attached component of type \"%s\" to entity #%i (%i)", component.c_str(), entity, realEntity);
+}
+
+void EntityFileParser::onStartComponentField(EntityID entity, const std::string& componentType, const std::string& fieldName, const std::map<std::string, std::string>& attributes)
+{
+    EntityID realEntity = m_EntityIDMapper.at(entity);
+    ComponentWrapper component = m_World->GetComponent(realEntity, componentType);
+    auto& field = component.Info.Fields.at(fieldName);
+
+    LOG_DEBUG("Field \"%s\" type \"%s\"", fieldName.c_str(), field.Type.c_str());
+    LOG_DEBUG("Attributes:");
+    for (auto& kv : attributes) {
+        LOG_DEBUG("\t%s = %s", kv.first.c_str(), kv.second.c_str());
+    }
+
+    char* data = component.Data + field.Offset;
+    EntityFile::WriteAttributeData(data, field, attributes);
+}
+
+void EntityFileParser::onFieldData(EntityID entity, const std::string& componentType, const std::string& fieldName, const char* fieldData)
+{
+    EntityID realEntity = m_EntityIDMapper.at(entity);
+    ComponentWrapper component = m_World->GetComponent(realEntity, componentType);
+    auto& field = component.Info.Fields.at(fieldName);
+
+    char* data = component.Data + field.Offset;
+    EntityFile::WriteValueData(data, field, fieldData);
+}

src/Engine/Core/EntityFilePreprocessor.cpp

@@ -0,0 +1,229 @@
+#include "Core/EntityFilePreprocessor.h"
+
+EntityFilePreprocessor::EntityFilePreprocessor(const EntityFile* entityFile) 
+    : m_EntityFile(entityFile)
+{
+    EntityFileHandler handler;
+    handler.SetStartComponentCallback(std::bind(&EntityFilePreprocessor::onStartComponent, this, std::placeholders::_1, std::placeholders::_2));
+    m_EntityFile->Parse(&handler);
+
+    LOG_DEBUG("___ COMPONENT DEFINITIONS ___");
+    for (auto& kv : m_ComponentCounts) {
+        LOG_DEBUG("%s: %i", kv.first.c_str(), kv.second);
+    }
+
+    parseComponentInfo();
+
+    for (auto& kv : m_ComponentInfo) {
+        auto& info = kv.second;
+        LOG_DEBUG("Component: %s (%s)", info.Name.c_str(), info.Meta.Annotation.c_str());
+        LOG_DEBUG("Stride: %i", info.Meta.Stride);
+        LOG_DEBUG("Allocation: %i", info.Meta.Allocation);
+        for (auto& kv : info.Fields) {
+            auto& field = kv.second;
+            LOG_DEBUG("\t%i\t%s %s", field.Offset, field.Type, kv.first.c_str());
+        }
+    }
+
+    parseDefaults();
+}
+
+void EntityFilePreprocessor::RegisterComponents(World* world)
+{
+    for (auto& kv : m_ComponentInfo) {
+        world->RegisterComponent(kv.second);
+    }
+}
+
+void EntityFilePreprocessor::onStartComponent(EntityID entity, std::string type)
+{
+    //LOG_DEBUG("Component: %s", type.c_str());
+    m_ComponentCounts[type]++;
+}
+
+void EntityFilePreprocessor::parseComponentInfo()
+{
+    using namespace xercesc;
+    EntityFileXMLErrorHandler errorHandler;
+    auto grammarPool = m_EntityFile->GrammarPool();
+    bool whateverTheFuckThisIs;
+    auto xsModel = grammarPool->getXSModel(whateverTheFuckThisIs);
+
+    // Find component xsd element declarations
+    std::cout << "Enumerating components..." << std::endl;
+    // <xs:element name="ComponentName">
+    auto topLevelElements = xsModel->getComponents(XSConstants::ELEMENT_DECLARATION);
+    for (unsigned int i = 0; i < topLevelElements->getLength(); ++i) {
+        auto element = static_cast<XSElementDeclaration*>(topLevelElements->item(i));
+
+        std::string nameSpace = XS::ToString(element->getNamespace());
+        if (nameSpace != "components") {
+            continue;
+        }
+
+        ComponentInfo compInfo;
+
+        // Name
+        compInfo.Name = XS::ToString(element->getName());
+        // Known allocation
+        compInfo.Meta.Allocation = m_ComponentCounts[compInfo.Name];
+        // Annotation
+        auto componentAnnotation = element->getAnnotation();
+        if (componentAnnotation != nullptr) {
+            // Parse annotation XML
+            char* annotationString = XMLString::transcode(componentAnnotation->getAnnotationString());
+            MemBufInputSource annotationInput(reinterpret_cast<const XMLByte*>(annotationString), strlen(annotationString), "MemBuf: Annotation String");
+            XercesDOMParser parser(nullptr, XMLPlatformUtils::fgMemoryManager, grammarPool);
+            parser.setErrorHandler(&errorHandler);
+            parser.parse(annotationInput);
+            XMLString::release(&annotationString);
+            auto doc = parser.getDocument();
+
+            // TODO: Add allocation estimations from external file on map-to-map basis
+            // Add allocation estimation(s)
+            //auto allocationTags = doc->getElementsByTagName(XSTR("meta:allocation"));
+            //for (int i = 0; i < allocationTags->getLength(); ++i) {
+            //    auto allocation = dynamic_cast<DOMElement*>(allocationTags->item(i));
+            //    auto child = allocation->getFirstChild();
+            //    if (child == nullptr) {
+            //        continue;
+            //    }
+
+            //    XSValue::Status status;
+            //    XSValue* val = XSValue::getActualValue(child->getNodeValue(), XSValue::dt_integer, status);
+            //    compInfo.Meta.Allocation += val->fData.fValue.f_int;
+            //}
+
+            // Save documentation string
+            auto documentationTags = doc->getElementsByTagName(XS::ToXMLCh("xs:documentation"));
+            if (documentationTags->getLength() != 0) {
+                auto child = documentationTags->item(0)->getFirstChild();
+                if (child != nullptr) {
+                    compInfo.Meta.Annotation = XS::ToString(child->getNodeValue());
+                }
+            }
+        } else {
+            LOG_WARNING("Component is missing an annotation!");
+        }
+
+        // <xs:complexType>
+        auto typeDefinition = element->getTypeDefinition();
+        if (typeDefinition->getTypeCategory() != XSTypeDefinition::COMPLEX_TYPE) {
+            LOG_ERROR("Type definition wasn't COMPLEX_TYPE! Skipping.");
+            continue;
+        }
+        auto complexTypeDefinition = dynamic_cast<XSComplexTypeDefinition*>(typeDefinition);
+
+        // <xs:all>
+        auto modelGroupParticle = complexTypeDefinition->getParticle();
+        if (modelGroupParticle->getTermType() != XSParticle::TERM_MODELGROUP) {
+            LOG_ERROR("Model group particle wasn't TERM_MODELGROUP! Skipping.");
+            continue;
+        }
+        auto modelGroup = modelGroupParticle->getModelGroupTerm();
+
+        // <xs:element... 
+        // <xs:attribute...
+        unsigned int fieldOffset = 0;
+        auto particles = modelGroup->getParticles();
+        for (unsigned int i = 0; i < particles->size(); ++i) {
+            auto particle = particles->elementAt(i);
+            if (particle->getTermType() != XSParticle::TERM_ELEMENT) {
+                LOG_ERROR("Particle wasn't TERM_ELEMENT! Skipping.");
+                continue;
+            }
+            auto elementDeclaration = particle->getElementTerm();
+
+            std::string name = XS::ToString(elementDeclaration->getName());
+            std::string type = XS::ToString(elementDeclaration->getTypeDefinition()->getName());
+
+            size_t stride = EntityFile::GetTypeStride(type);
+            if (stride == 0) {
+                std::cout << "Warning: Field \"" << name << "\" in component \"" << compInfo.Name << "\" uses unexpected field type \"" << type << "\". Skipping." << std::endl;
+                continue;
+            }
+
+            auto& field = compInfo.Fields[name];
+            field.Type = type;
+            field.Offset = fieldOffset;
+            field.Stride = stride;
+            compInfo.FieldsInOrder.push_back(&field);
+
+            fieldOffset += stride;
+        }
+
+        compInfo.Meta.Stride = fieldOffset;
+        m_ComponentInfo[compInfo.Name] = compInfo;
+    }
+}
+
+void EntityFilePreprocessor::parseDefaults()
+{
+    using namespace xercesc;
+
+    EntityFileXMLErrorHandler errorHandler;
+
+    for (auto& ci : m_ComponentInfo) {
+        // Allocate memory for default values
+        ci.second.Defaults = std::shared_ptr<char>(new char[ci.second.Meta.Stride]);
+        memset(ci.second.Defaults.get(), 0, ci.second.Meta.Stride);
+
+        XercesDOMParser parser(nullptr, XMLPlatformUtils::fgMemoryManager);
+        parser.setErrorHandler(&errorHandler);
+
+        std::string componentName = ci.first;
+        LOG_DEBUG("Parsing defaults for component %s", componentName.c_str());
+        boost::filesystem::path defaultsFile = "Schema/Components/" + componentName + ".xml";
+
+        parser.parse(defaultsFile.string().c_str());
+        auto doc = parser.getDocument();
+        if (doc == nullptr) {
+            LOG_ERROR("%s not found! Skipping.", defaultsFile.string().c_str());
+            continue;
+        }
+
+        // Find the node in the components namespace matching the component name
+        std::string tagName = "c:" + componentName;
+        auto rootNodes = doc->getElementsByTagName(XS::ToXMLCh(tagName));
+        if (rootNodes->getLength() == 0) {
+            LOG_ERROR("Couldn't find defaults for component \"%s\"! Skipping.", componentName.c_str());
+            continue;
+        }
+        auto componentElement = dynamic_cast<DOMElement*>(rootNodes->item(0));
+
+        // Fill the default value buffer with values
+        for (auto& kv : ci.second.Fields) {
+            std::string fieldName = kv.first;
+            auto& field = kv.second;
+            auto fieldNodes = componentElement->getElementsByTagName(XS::ToXMLCh(fieldName));
+            auto fieldNode = fieldNodes->item(0);
+            if (fieldNode == nullptr) {
+                LOG_ERROR("Defaults for component \"%s\" is missing field \"%s\"!", componentName.c_str(), fieldName.c_str());
+                continue;
+            }
+            auto fieldElement = dynamic_cast<DOMElement*>(fieldNode);
+
+            char* data = ci.second.Defaults.get() + field.Offset;
+
+            // Handle potential field attributes
+            if (fieldElement->hasAttributes()) {
+                std::map<std::string, std::string> attributes;
+                auto attributeMap = fieldElement->getAttributes();
+                for (int i = 0; i < attributeMap->getLength(); ++i) {
+                    auto attribItem = attributeMap->item(i);
+                    attributes[XS::ToString(attribItem->getNodeName())] = XS::ToString(attribItem->getNodeValue());
+                }
+                EntityFile::WriteAttributeData(data, field, attributes);
+            }
+
+            // Handle potential field values
+            auto childNode = fieldElement->getFirstChild();
+            if (childNode != nullptr && childNode->getNodeType() == DOMNode::TEXT_NODE) {
+                char* cstrValue = XMLString::transcode(childNode->getNodeValue());
+                EntityFile::WriteValueData(data, field, cstrValue);
+                XMLString::release(&cstrValue);
+            }
+        }
+    }
+}
+

src/Engine/Core/EntityFileWriter.cpp

@@ -0,0 +1,140 @@
+#include "Core/EntityFileWriter.h"
+
+#define X(str) XS::ToXMLCh(str)
+
+void EntityFileWriter::WriteWorld(World* world)
+{
+    WriteEntity(world, 0);
+}
+
+void EntityFileWriter::WriteEntity(World* world, EntityID entity)
+{
+    using namespace xercesc;
+    DOMDocument* doc = m_DOMImplementation->createDocument(nullptr, X("Entity"), nullptr);
+    DOMElement* root = doc->getDocumentElement();
+    root->setAttribute(X("xmlns:xsi"), X("http://www.w3.org/2001/XMLSchema-instance"));
+    root->setAttribute(X("xsi:noNamespaceSchemaLocation"), X("../Types/Entity.xsd"));
+    root->setAttribute(X("xmlns:c"), X("components"));
+    const std::string& name = world->GetName(entity);
+    if (!name.empty()) {
+        root->setAttribute(X("name"), X(name));
+    }
+    
+    DOMElement* componentsElement = doc->createElement(X("Components"));
+    root->appendChild(componentsElement);
+    appentEntityComponents(componentsElement, world, entity);
+
+    DOMElement* childrenElement = doc->createElement(X("Children"));
+    root->appendChild(childrenElement);
+    appendEntityChildren(childrenElement, world, entity);
+
+    try {
+        LocalFileFormatTarget* target = new LocalFileFormatTarget(X(m_FilePath.string()));
+        DOMLSOutput* output = static_cast<DOMImplementationLS*>(m_DOMImplementation)->createLSOutput();
+        output->setByteStream(target);
+        m_DOMLSSerializer->write(doc, output);
+        delete target;
+    } catch (const std::runtime_error& e) {
+        LOG_ERROR("Failed to save \"%s\": %s", m_FilePath.c_str(), e.what());
+    }
+
+    doc->release();
+}
+
+void EntityFileWriter::appendEntityChildren(xercesc::DOMElement* parentElement, const World* world, EntityID entity)
+{
+    using namespace xercesc;
+    DOMDocument* doc = parentElement->getOwnerDocument();
+
+    auto childrenRange = world->GetEntityChildren().equal_range(entity);
+    for (auto it = childrenRange.first; it != childrenRange.second; ++it) {
+        EntityID childEntity = it->second;
+
+        DOMElement* entityElement = doc->createElement(X("Entity"));
+        const std::string& name = world->GetName(childEntity);
+        if (!name.empty()) {
+            entityElement->setAttribute(X("name"), X(name));
+        }
+        parentElement->appendChild(entityElement);
+
+        DOMElement* componentsElement = doc->createElement(X("Components"));
+        entityElement->appendChild(componentsElement);
+        appentEntityComponents(componentsElement, world, childEntity);
+
+        DOMElement* childrenElement = doc->createElement(X("Children"));
+        entityElement->appendChild(childrenElement);
+        appendEntityChildren(childrenElement, world, childEntity);
+    }
+}
+
+void EntityFileWriter::appentEntityComponents(xercesc::DOMElement* parentElement, const World* world, EntityID entity)
+{
+    using namespace xercesc;
+    DOMDocument* doc = parentElement->getOwnerDocument();
+    auto& componentPools = world->GetComponentPools();
+
+    // Step through all component pools to get an entity's components
+    // HACK: This is sloooow.
+    for (auto& kv : componentPools) {
+        const std::string& componentName = kv.first;
+        if (!world->HasComponent(entity, componentName)) {
+            continue;
+        }
+        std::string qualifiedComponentName = "c:" + componentName;
+        DOMElement* componentElement = doc->createElement(X(qualifiedComponentName));
+        parentElement->appendChild(componentElement);
+        ComponentWrapper c = kv.second->GetByEntity(entity);
+        for (auto& kv : c.Info.Fields) {
+            std::string fieldName = kv.first;
+            auto& field = kv.second;
+
+            // Ignore fields that are equal to the default
+            // HACK: This is probably sloooooow, but it's okay.
+            if (memcmp(c.Data + field.Offset, c.Info.Defaults.get() + field.Offset, field.Stride) == 0) {
+                continue;
+            }
+
+            DOMElement* fieldElement = doc->createElement(X(fieldName));
+            componentElement->appendChild(fieldElement);
+
+            if (field.Type == "Vector") {
+                const glm::vec3& vec = c[fieldName];
+                fieldElement->setAttribute(X("X"), X(boost::lexical_cast<std::string>(vec.x)));
+                fieldElement->setAttribute(X("Y"), X(boost::lexical_cast<std::string>(vec.y)));
+                fieldElement->setAttribute(X("Z"), X(boost::lexical_cast<std::string>(vec.z)));
+            } else if (field.Type == "Color") {
+                const glm::vec4& vec = c[fieldName];
+                fieldElement->setAttribute(X("R"), X(boost::lexical_cast<std::string>(vec.r)));
+                fieldElement->setAttribute(X("G"), X(boost::lexical_cast<std::string>(vec.g)));
+                fieldElement->setAttribute(X("B"), X(boost::lexical_cast<std::string>(vec.b)));
+                fieldElement->setAttribute(X("A"), X(boost::lexical_cast<std::string>(vec.a)));
+            } else if (field.Type == "Quaternion") {
+                const glm::quat& q = c[fieldName];
+                fieldElement->setAttribute(X("X"), X(boost::lexical_cast<std::string>(q.x)));
+                fieldElement->setAttribute(X("Y"), X(boost::lexical_cast<std::string>(q.y)));
+                fieldElement->setAttribute(X("Z"), X(boost::lexical_cast<std::string>(q.z)));
+                fieldElement->setAttribute(X("W"), X(boost::lexical_cast<std::string>(q.w)));
+            } else if (field.Type == "int") {
+                const int& value = c[fieldName];
+                fieldElement->appendChild(doc->createTextNode(X(boost::lexical_cast<std::string>(value))));
+            } else if (field.Type == "float") {
+                const float& value = c[fieldName];
+                fieldElement->appendChild(doc->createTextNode(X(boost::lexical_cast<std::string>(value))));
+            } else if (field.Type == "double") {
+                const double& value = c[fieldName];
+                fieldElement->appendChild(doc->createTextNode(X(boost::lexical_cast<std::string>(value))));
+            } else if (field.Type == "bool") {
+                const bool& value = c[fieldName];
+                if (value) {
+                    fieldElement->appendChild(doc->createTextNode(X("true")));
+                } else {
+                    fieldElement->appendChild(doc->createTextNode(X("false")));
+                }
+            } else if (field.Type == "string") {
+                const std::string& value = c[fieldName];
+                fieldElement->appendChild(doc->createTextNode(X(value)));
+            }
+        }
+    }
+}
+

src/Engine/Core/EntityXMLFile.cpp

@@ -1,495 +0,0 @@
-#include "Core/EntityXMLFile.h"
-#include "Core/World.h"
-
-unsigned int EntityXMLFile::InstanceCount = 0;
-
-EntityXMLFile::EntityXMLFile(std::string path)
-    : m_EntityFile(path)
-{
-    using namespace xercesc;
-
-    if (InstanceCount == 0) {
-        XMLPlatformUtils::Initialize();
-    }
-    InstanceCount++;
-
-    m_GrammarPool = new XMLGrammarPoolImpl();
-    m_ErrorHandler = new EntityParserXMLErrorHandler();
-    m_DOMParser = new XercesDOMParser(nullptr, XMLPlatformUtils::fgMemoryManager, m_GrammarPool);
-    m_DOMParser->setErrorHandler(m_ErrorHandler);
-    m_DOMParser->setDoNamespaces(true);
-    m_DOMParser->setDoXInclude(true);
-    m_DOMParser->setDoSchema(true);
-    m_DOMParser->setValidationSchemaFullChecking(true);
-    m_DOMParser->setValidationScheme(xercesc::XercesDOMParser::Val_Auto);
-    m_DOMParser->setValidationSchemaFullChecking(true);
-    m_DOMParser->setValidationConstraintFatal(false);
-    m_DOMParser->setIncludeIgnorableWhitespace(false);
-    // Make sure schema grammar is kept after validation
-    m_DOMParser->cacheGrammarFromParse(true);
-
-    // HACK: Use Sax2 parser instead so the entire DOM doesn't have to reside in memory
-    m_DOMParser->parse(m_EntityFile.c_str());
-    m_DOMDocument = m_DOMParser->getDocument();
-
-    // 1. Fill in ComponentInfo name, fields, default values and metadata from PSVI
-    parseComponentInfo();
-    // 2. Parse default value files for those components
-    parseDefaults();
-    // 3. Allocate component structures
-    predictComponentAllocation();
-}
-
-EntityXMLFile::~EntityXMLFile()
-{
-    using namespace xercesc;
-
-    if (m_DOMParser != nullptr) {
-        delete m_DOMParser;
-    }
-    if (m_ErrorHandler != nullptr) {
-        delete m_ErrorHandler;
-    }
-    if (m_GrammarPool != nullptr) {
-        delete m_GrammarPool;
-    }
-
-    InstanceCount--;
-    if (InstanceCount == 0) {
-        XMLPlatformUtils::Terminate();
-    }
-}
-
-void EntityXMLFile::PopulateWorld(World* world)
-{
-    for (auto& pair : m_ComponentInfo) {
-        world->RegisterComponent(pair.second);
-    }
-
-    // 4. Parse entity hierarchy
-    auto root = m_DOMDocument->getDocumentElement();
-    parseEntityGraph(world, root, 0);
-}
-
-
-void EntityXMLFile::preprocess(std::string inPath, std::string outPath)
-{
-    using namespace xercesc;
-
-    static const XMLCh gLS[] = { 'L', 'S', '\0' };
-    DOMImplementationLS* di = static_cast<DOMImplementationLS*>(DOMImplementationRegistry::getDOMImplementation(gLS));
-
-    // Parse the file
-    DOMLSParser* parser = di->createLSParser(DOMImplementationLS::MODE_SYNCHRONOUS, nullptr);
-    DOMConfiguration* config = parser->getDomConfig();
-    config->setParameter(XMLUni::fgDOMNamespaces, true);
-    config->setParameter(XMLUni::fgXercesSchema, true);
-    config->setParameter(XMLUni::fgXercesHandleMultipleImports, true);
-    config->setParameter(XMLUni::fgXercesSchemaFullChecking, true);
-    config->setParameter(XMLUni::fgXercesDoXInclude, true);
-    auto errHandler = new EntityPreprocessorXMLErrorHandler();
-    config->setParameter(XMLUni::fgDOMErrorHandler, errHandler);
-
-    auto source = new LocalFileInputSource(XSTR(inPath.c_str()));
-    Wrapper4InputSource* domSourceWrapper = new Wrapper4InputSource(source);
-    DOMDocument* doc = parser->parse(dynamic_cast<DOMLSInput*>(domSourceWrapper));
-
-    // Serialize and output the new XML
-    DOMLSSerializer* writer = di->createLSSerializer();
-    DOMLSOutput* output = di->createLSOutput();
-    XMLFormatTarget* formatTarget = new LocalFileFormatTarget(outPath.c_str());
-    // TODO: MemBufFormatTarget* formatTarget = new MemBufFormatTarget()
-    output->setByteStream(formatTarget);
-    writer->write(doc, output);
-
-    delete formatTarget;
-    output->release();
-    writer->release();
-    parser->release();
-}
-
-void EntityXMLFile::parseComponentInfo()
-{
-    using namespace xercesc;
-    bool wasChanged;
-    XSModel* xsModel = m_GrammarPool->getXSModel(wasChanged);
-
-    // Find component xsd element declarations
-    std::cout << "Enumerating components..." << std::endl;
-    // <xs:element name="ComponentName">
-    auto topLevelElements = xsModel->getComponents(XSConstants::ELEMENT_DECLARATION);
-    for (unsigned int i = 0; i < topLevelElements->getLength(); ++i) {
-        auto element = static_cast<XSElementDeclaration*>(topLevelElements->item(i));
-
-        std::string nameSpace(XSTR(element->getNamespace()));
-        if (nameSpace != "components") {
-            continue;
-        }
-
-        ComponentInfo compInfo;
-
-        // Name
-        compInfo.Name = XSTR(element->getName());
-        // Annotation
-        auto componentAnnotation = element->getAnnotation();
-        if (componentAnnotation != nullptr) {
-            // Parse annotation XML
-            char* annotationString = XMLString::transcode(componentAnnotation->getAnnotationString());
-            MemBufInputSource annotationInput(reinterpret_cast<const XMLByte*>(annotationString), strlen(annotationString), "MemBuf: Annotation String");
-            XercesDOMParser parser(nullptr, XMLPlatformUtils::fgMemoryManager, m_GrammarPool);
-            parser.setErrorHandler(m_ErrorHandler);
-            parser.parse(annotationInput);
-            XMLString::release(&annotationString);
-            auto doc = parser.getDocument();
-
-            // Add allocation estimation(s)
-            auto allocationTags = doc->getElementsByTagName(XSTR("meta:allocation"));
-            for (int i = 0; i < allocationTags->getLength(); ++i) {
-                auto allocation = dynamic_cast<DOMElement*>(allocationTags->item(i));
-                auto child = allocation->getFirstChild();
-                if (child == nullptr) {
-                    continue;
-                }
-
-                XSValue::Status status;
-                XSValue* val = XSValue::getActualValue(child->getNodeValue(), XSValue::dt_integer, status);
-                compInfo.Meta.Allocation += val->fData.fValue.f_int;
-            }
-
-            // Save documentation string
-            auto documentationTags = doc->getElementsByTagName(XSTR("xs:documentation"));
-            if (documentationTags->getLength() != 0) {
-                auto child = documentationTags->item(0)->getFirstChild();
-                if (child != nullptr) {
-                    compInfo.Meta.Annotation = XSTR(child->getNodeValue());
-                }
-            }
-            // TODO: Parse annotation string XML
-            // compInfo.Meta.Allocation = ...
-        } else {
-            std::cout << "Warning: Component is missing an annotation!" << std::endl;
-        }
-
-        // <xs:complexType>
-        auto typeDefinition = element->getTypeDefinition();
-        if (typeDefinition->getTypeCategory() != XSTypeDefinition::COMPLEX_TYPE) {
-            std::cerr << "Error: Type definition wasn't COMPLEX_TYPE! Skipping." << std::endl;
-            continue;
-        }
-        auto complexTypeDefinition = dynamic_cast<XSComplexTypeDefinition*>(typeDefinition);
-
-        // <xs:all>
-        auto modelGroupParticle = complexTypeDefinition->getParticle();
-        if (modelGroupParticle->getTermType() != XSParticle::TERM_MODELGROUP) {
-            std::cerr << "Error: Model group particle wasn't TERM_MODELGROUP! Skipping." << std::endl;
-            continue;
-        }
-        auto modelGroup = modelGroupParticle->getModelGroupTerm();
-
-        // <xs:element... 
-        // <xs:attribute...
-        unsigned int fieldOffset = 0;
-        auto particles = modelGroup->getParticles();
-        for (unsigned int i = 0; i < particles->size(); ++i) {
-            auto particle = particles->elementAt(i);
-            if (particle->getTermType() != XSParticle::TERM_ELEMENT) {
-                std::cerr << "Error: Particle wasn't TERM_ELEMENT! Skipping." << std::endl;
-                continue;
-            }
-            auto elementDeclaration = particle->getElementTerm();
-
-            std::string name = XSTR(elementDeclaration->getName());
-            std::string type = XSTR(elementDeclaration->getTypeDefinition()->getName());
-
-            size_t stride = getTypeStride(type);
-            if (stride == 0) {
-                std::cout << "Warning: Field \"" << name << "\" in component \"" << compInfo.Name << "\" uses unexpected field type \"" << type << "\". Skipping." << std::endl;
-                continue;
-            }
-
-            compInfo.FieldTypes[name] = type;
-            compInfo.FieldOffsets[name] = fieldOffset;
-            fieldOffset += getTypeStride(type);
-        }
-
-        compInfo.Meta.Stride = fieldOffset;
-        m_ComponentInfo[compInfo.Name] = compInfo;
-    }
-}
-
-void EntityXMLFile::parseDefaults()
-{
-    using namespace xercesc;
-
-    for (auto& ci : m_ComponentInfo) {
-        // Allocate memory for default values
-        ci.second.Defaults = std::shared_ptr<char>(new char[ci.second.Meta.Stride]);
-        memset(ci.second.Defaults.get(), 0, ci.second.Meta.Stride);
-
-        XercesDOMParser parser(nullptr, XMLPlatformUtils::fgMemoryManager);
-        parser.setErrorHandler(m_ErrorHandler);
-
-        std::string componentName = ci.first;
-        LOG_DEBUG("Parsing defaults for component %s", componentName.c_str());
-        boost::filesystem::path defaultsFile = "Schema/Components/" + componentName + ".xml";
-
-        parser.parse(defaultsFile.string().c_str());
-        auto doc = parser.getDocument();
-        if (doc == nullptr) {
-            LOG_ERROR("%s not found! Skipping.", defaultsFile.string().c_str());
-            continue;
-        }
-
-        // Find the node in the components namespace matching the component name
-        std::string tagName = "c:" + componentName;
-        auto rootNodes = doc->getElementsByTagName(XSTR(tagName.c_str()));
-        if (rootNodes->getLength() == 0) {
-            LOG_ERROR("Couldn't find defaults for component \"%s\"! Skipping.", componentName.c_str());
-            continue;
-        }
-        auto componentElement = dynamic_cast<DOMElement*>(rootNodes->item(0));
-       
-        // Fill the default value buffer with values
-        for (auto& field : ci.second.FieldOffsets) {
-            std::string fieldName = field.first;
-            auto fieldNodes = componentElement->getElementsByTagName(XSTR(fieldName.c_str()));
-            auto fieldNode = fieldNodes->item(0);
-            if (fieldNode == nullptr) {
-                LOG_ERROR("Defaults for component \"%s\" is missing field \"%s\"!", componentName.c_str(), fieldName.c_str());
-                continue;
-            }
-            auto fieldElement = dynamic_cast<DOMElement*>(fieldNode);
-
-            std::string fieldType = ci.second.FieldTypes.at(fieldName);
-            unsigned int fieldOffset = ci.second.FieldOffsets.at(fieldName);
-            writeData(fieldElement, fieldType, ci.second.Defaults.get() + fieldOffset);
-        }
-    }
-}
-
-void EntityXMLFile::predictComponentAllocation()
-{
-    using namespace xercesc;
-
-    auto root = m_DOMDocument->getDocumentElement();
-
-    // Count static instances of components present in entity hierarchy
-    auto components = m_DOMDocument->getElementsByTagNameNS(XSTR("components"), XSTR("*"));
-    for (int i = 0; i < components->getLength(); ++i) {
-        auto component = dynamic_cast<DOMElement*>(components->item(i));
-
-        std::string componentName = XSTR(component->getLocalName());
-        auto& compInfo = m_ComponentInfo.at(componentName);
-        compInfo.Meta.Allocation += 1;
-    }
-
-    std::cout << "COMPONENT INFO" << std::endl;
-    for (auto& pair : m_ComponentInfo) {
-        ComponentInfo& ci = pair.second;
-        std::cout << "Component: " << ci.Name << " (" << ci.Meta.Annotation << ")" << std::endl;
-        std::cout << "  Allocation: " << ci.Meta.Allocation << std::endl;
-        std::cout << "  Fields:" << std::endl;
-
-        // Calculate component size
-        std::size_t stride = 0;
-        // Add size of fields
-        for (auto& field : ci.FieldTypes) {
-            std::cout << "    " << field.second << " " << field.first << " (" << getTypeStride(field.second) << " byte)" << std::endl;
-            stride += getTypeStride(field.second);
-        }
-        std::cout << "  Stride: " << ci.Meta.Stride << std::endl;
-    }
-}
-
-void EntityXMLFile::parseEntityGraph(World* world, xercesc::DOMElement* element, EntityID parentEntity)
-{
-    using namespace xercesc;
-
-    // Create entity
-    EntityID entity = world->CreateEntity(parentEntity);
-    LOG_DEBUG("Created entity %i, parent %i", entity, parentEntity);
-
-    // Add components
-    auto components = m_DOMDocument->evaluate(XSTR("Components/*"), element, nullptr,  DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE, nullptr);
-    for (int i = 0; i < components->getSnapshotLength(); i++) {
-        components->snapshotItem(i);
-        auto componentElement = dynamic_cast<DOMElement*>(components->getNodeValue());
-        std::string componentName = XSTR(componentElement->getLocalName());
-        auto& ci = m_ComponentInfo.at(componentName);
-
-        // Attach the component
-        auto c = world->AttachComponent(entity, componentName);
-        LOG_DEBUG("Attached %s component", componentName.c_str());
-
-        // Write field data
-        auto fields = componentElement->getChildNodes();
-        for (int j = 0; j < fields->getLength(); ++j) {
-            auto fieldNode = fields->item(j);
-            auto nodeType = fieldNode->getNodeType();
-            if (nodeType != DOMNode::ELEMENT_NODE) {
-                continue;
-            }
-            auto field = dynamic_cast<DOMElement*>(fields->item(j));
-            //const XMLCh* value = fields->item(j)->getTextContent();
-            std::string fieldName(XSTR(field->getLocalName()));
-            if (ci.FieldTypes.find(fieldName) == ci.FieldTypes.end()) {
-                std::cout << "Warning: Component \"" << componentName << "\" contains invalid field \"" << fieldName << "\". Skipping." << std::endl;
-                continue;
-            }
-
-            std::string fieldType = ci.FieldTypes.at(fieldName);
-            unsigned int fieldOffset = ci.FieldOffsets.at(fieldName);
-            std::string fieldValue(XSTR(field->getTextContent()));
-            LOG_DEBUG("    %s %s = %s", fieldType.c_str(), fieldName.c_str(), fieldValue.c_str());
-            writeData(field, fieldType, c.Data + fieldOffset);
-        }
-    }
-
-    // Recurse children
-    auto children = m_DOMDocument->evaluate(XSTR("Children/Entity"), element, nullptr, DOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE, nullptr);
-    for (int i = 0; i < children->getSnapshotLength(); i++) {
-        children->snapshotItem(i);
-        parseEntityGraph(world, dynamic_cast<DOMElement*>(children->getNodeValue()), entity);
-    }
-
-    //auto components = m_DOMDocument->getElementsByTagNameNS(XSTR("components"), XSTR("*"));
-    //for (int i = 0; i < components->getLength(); ++i) {
-    //    auto component = dynamic_cast<DOMElement*>(components->item(i));
-
-    //    std::string componentName = XSTR(component->getLocalName());
-    //    auto& compStore = m_ComponentStore.at(componentName);
-    //    auto& compInfo = compStore.Info;
-
-    //    char* data = &compStore.Data[compStore.Size*compStore.Stride];
-    //    compStore.Size += 1;
-
-    //    auto fields = component->getChildNodes();
-    //    for (int j = 0; j < fields->getLength(); ++j) {
-    //        auto field = fields->item(j);
-    //        auto nodeType = field->getNodeType();
-    //        if (nodeType != DOMNode::ELEMENT_NODE) {
-    //            continue;
-    //        }
-    //        //auto field = dynamic_cast<DOMElement*>(fields->item(j));
-    //        //const XMLCh* value = fields->item(j)->getTextContent();
-    //        std::string fieldName = XSTR(field->getLocalName());
-    //        if (compInfo.FieldTypes.find(fieldName) == compInfo.FieldTypes.end()) {
-    //            std::cout << "Warning: Component \"" << componentName << "\" contains invalid field \"" << fieldName << "\". Skipping." << std::endl;
-    //            continue;
-    //        }
-
-    //        std::string fieldType = compInfo.FieldTypes.at(fieldName);
-    //        unsigned int fieldOffset = compInfo.FieldOffsets.at(fieldName);
-
-    //        XSValue::DataType dataType = XSValue::getDataType(XSTR(fieldType.c_str()));
-    //        if (dataType == XSValue::DataType::dt_MAXCOUNT) {
-    //            // TODO:
-    //            continue;
-    //        }
-    //        if (dataType == XSValue::DataType::dt_string) {
-    //            char* str = XMLString::transcode(field->getTextContent());
-    //            std::string standardString(str);
-    //            XMLString::release(&str);
-    //            memcpy(&data[fieldOffset], reinterpret_cast<char*>(&standardString), getTypeStride(fieldType));
-    //        } else {
-    //            XSValue::Status status;
-    //            XSValue* val = XSValue::getActualValue(field->getTextContent(), dataType, status);
-    //            memcpy(&data[fieldOffset], reinterpret_cast<char*>(&val->fData.fValue), getTypeStride(fieldType));
-    //        }
-    //    }
-    //}
-
-    //auto entities = m_DOMDocument->getElementsByTagName(XSTR("Entity"));
-    //for (int i = 0; i < entities->getLength(); ++i) {
-    //    auto entity = dynamic_cast<DOMElement*>(entities->item(i));
-
-
-    //    //entity->setIdAttribute()
-
-    //    std::cout << "ENTITY " << i + 1 << std::endl;
-    //}
-}
-
-std::size_t EntityXMLFile::getTypeStride(std::string typeName)
-{
-    std::map<std::string, size_t> typeStrides{
-        { "bool", sizeof(bool) },
-        { "int", sizeof(int) },
-        { "float", sizeof(float) },
-        { "double", sizeof(double) },
-        { "string", sizeof(std::string) },
-        { "Vector", sizeof(glm::vec3) },
-        { "Quaternion", sizeof(glm::quat) },
-        { "Color", sizeof(glm::vec4) }
-    };
-
-    auto it = typeStrides.find(typeName);
-    return (it != typeStrides.end()) ? it->second : 0;
-}
-
-float EntityXMLFile::getFloatAttribute(const xercesc::DOMElement* element, const char* attribute) const
-{
-    using namespace xercesc;
-    XSValue::Status status;
-    XSValue* val = XSValue::getActualValue(element->getAttribute(XSTR(attribute)), xercesc::XSValue::DataType::dt_double, status);
-    if (val == nullptr) {
-        LOG_ERROR("Element \"%s\" doesn't have an \"%s\" attribute!", XSTR(element->getTagName()), attribute);
-        return 0.f;
-    } else {
-        return static_cast<float>(val->fData.fValue.f_double);
-    }
-}
-
-void EntityXMLFile::writeData(const xercesc::DOMElement* element, std::string typeName, char* outData)
-{
-    using namespace xercesc;
-
-    if (typeName == "Vector") {
-        glm::vec3 vec;
-        vec.x = getFloatAttribute(element, "X");
-        vec.y = getFloatAttribute(element, "Y");
-        vec.z = getFloatAttribute(element, "Z");
-        memcpy(outData, reinterpret_cast<char*>(&vec), getTypeStride(typeName));
-    } else if (typeName == "Color") {
-        glm::vec4 vec;
-        vec.r = getFloatAttribute(element, "R");
-        vec.g = getFloatAttribute(element, "G");
-        vec.b = getFloatAttribute(element, "B");
-        vec.a = getFloatAttribute(element, "A");
-        memcpy(outData, reinterpret_cast<char*>(&vec), getTypeStride(typeName));
-    } else if (typeName == "Quaternion") {
-        glm::quat q;
-        q.x = getFloatAttribute(element, "X");
-        q.y = getFloatAttribute(element, "Y");
-        q.z = getFloatAttribute(element, "Z");
-        q.w = getFloatAttribute(element, "W");
-        memcpy(outData, reinterpret_cast<char*>(&q), getTypeStride(typeName));
-    } else if (typeName == "float") {
-        XSValue::Status status;
-        XSValue* val = XSValue::getActualValue(element->getTextContent(), xercesc::XSValue::DataType::dt_float, status);
-        memcpy(outData, reinterpret_cast<char*>(&val->fData.fValue.f_float), getTypeStride(typeName));
-    } else if (typeName == "double") {
-        XSValue::Status status;
-        XSValue* val = XSValue::getActualValue(element->getTextContent(), xercesc::XSValue::DataType::dt_double, status);
-        memcpy(outData, reinterpret_cast<char*>(&val->fData.fValue.f_double), getTypeStride(typeName));
-    } else if (typeName == "bool") {
-        XSValue::Status status;
-        XSValue* val = XSValue::getActualValue(element->getTextContent(), xercesc::XSValue::DataType::dt_boolean, status);
-        memcpy(outData, reinterpret_cast<char*>(&val->fData.fValue.f_bool), getTypeStride(typeName));
-    } else {
-        XSValue::DataType dataType = XSValue::getDataType(XSTR(typeName.c_str()));
-        if (dataType == XSValue::DataType::dt_string) {
-            char* str = XMLString::transcode(element->getTextContent());
-            std::string standardString(str);
-            new (outData) std::string(str);
-            XMLString::release(&str);
-            //memcpy(outData, reinterpret_cast<char*>(&standardString), getTypeStride(typeName));
-        } else {
-            //XSValue::Status status;
-            //XSValue* val = XSValue::getActualValue(element->getTextContent(), dataType, status);
-            //memcpy(outData, reinterpret_cast<char*>(&val->fData.fValue), getTypeStride(typeName));
-            LOG_WARNING("Unknown native data type: %s", typeName.c_str());
-        }
-    }
-}
-

src/Engine/Core/World.cpp

@@ -10,12 +10,15 @@ World::~World()
 EntityID World::CreateEntity(EntityID parent /*= 0*/)
 {
     EntityID newEntity = generateEntityID();
+    if (newEntity == parent) {
+        LOG_WARNING("Invalid parent #%i of Entity#%i", newEntity, parent);
+        parent = EntityID_Invalid;
+    }
     m_EntityParents[newEntity] = parent;
     m_EntityChildren.insert(std::make_pair(parent, newEntity));
     return newEntity;
 }
 
-
 void World::DeleteEntity(EntityID entity)
 {
     // Delete components
@@ -46,15 +49,26 @@ void World::DeleteEntity(EntityID entity)
             break;
         }
     }
+
+    // Erase potential name
+    m_EntityNames.erase(entity);
+}
+
+bool World::ValidEntity(EntityID entity) const
+{
+    return m_EntityParents.find(entity) != m_EntityParents.end();
 }
 
 void World::RegisterComponent(ComponentInfo& ci)
 {
-    m_ComponentPools[ci.Name] = new ComponentPool(ci);
+    if (m_ComponentPools.find(ci.Name) == m_ComponentPools.end()) {
+        m_ComponentPools[ci.Name] = new ComponentPool(ci);
+    }
 }
 
 ComponentWrapper World::AttachComponent(EntityID entity, std::string componentType)
 {
+    // TODO: Allocate dynamic pool if component isn't registered
     ComponentPool* pool = m_ComponentPools.at(componentType);
     const ComponentInfo& ci = pool->ComponentInfo();
 
@@ -66,8 +80,7 @@ ComponentWrapper World::AttachComponent(EntityID entity, std::string componentTy
     return c;
 }
 
-
-bool World::HasComponent(EntityID entity, std::string componentType)
+bool World::HasComponent(EntityID entity, std::string componentType) const
 {
     ComponentPool* pool = m_ComponentPools.at(componentType);
     return pool->KnowsEntity(entity);
@@ -79,7 +92,6 @@ ComponentWrapper World::GetComponent(EntityID entity, std::string componentType)
     return pool->GetByEntity(entity);
 }
 
-
 void World::DeleteComponent(EntityID entity, std::string componentType)
 {
     ComponentPool* pool = m_ComponentPools.at(componentType);
@@ -93,13 +105,11 @@ const ComponentPool* World::GetComponents(std::string componentType)
     return (it != m_ComponentPools.end()) ? it->second : nullptr;
 }
 
-
 EntityID World::GetParent(EntityID entity)
 {
     return m_EntityParents.at(entity);
 }
 
-
 void World::SetParent(EntityID entity, EntityID parent)
 {
     EntityID lastParent = m_EntityParents.at(entity);
@@ -115,6 +125,25 @@ void World::SetParent(EntityID entity, EntityID parent)
     m_EntityChildren.insert(std::make_pair(parent, entity));
 }
 
+void World::SetName(EntityID entity, const std::string& name)
+{
+    m_EntityNames[entity] = name;
+}
+
+std::string World::GetName(EntityID entity) const
+{
+    if (entity == EntityID_Invalid) {
+        return "EntityID_Invalid";
+    }
+
+    auto it = m_EntityNames.find(entity);
+    if (it != m_EntityNames.end()) {
+        return it->second;
+    } else {
+        return std::string();
+    }
+}
+
 EntityID World::generateEntityID()
 {
     // TODO: Make EntityID generation smarter

src/Engine/Editor/EditorSystem.cpp

@@ -9,6 +9,7 @@ EditorSystem::EditorSystem(EventBroker* eventBroker, IRenderer* renderer)
     auto config = ResourceManager::Load<ConfigFile>("Config.ini");
     m_Enabled = config->Get<bool>("Debug.EditorEnabled", false);
     m_Visible = m_Enabled;
+    m_DefaultEntityDir = boost::filesystem::path("Schema") / boost::filesystem::path("Entities");
 
     if (!m_Enabled) {
         return;
@@ -44,6 +45,35 @@ void EditorSystem::Update(World* world, double dt)
     }
 }
 
+
+boost::filesystem::path EditorSystem::openDialog(boost::filesystem::path defaultPath)
+{
+    namespace bfs = boost::filesystem;
+    auto absolutePath = bfs::absolute(defaultPath);
+    nfdchar_t* outPath = nullptr;
+    nfdresult_t result = NFD_OpenDialog(NULL, absolutePath.string().c_str(), &outPath);
+    if (result == NFD_ERROR) {
+        LOG_ERROR("NFD Error: %s", NFD_GetError());
+        return bfs::path();
+    }
+
+    return bfs::absolute(outPath);
+}
+
+boost::filesystem::path EditorSystem::saveDialog(boost::filesystem::path defaultPath)
+{
+    namespace bfs = boost::filesystem;
+    auto absolutePath = bfs::absolute(defaultPath);
+    nfdchar_t* outPath = nullptr;
+    nfdresult_t result = NFD_SaveDialog(NULL, absolutePath.string().c_str(), &outPath);
+    if (result == NFD_ERROR) {
+        LOG_ERROR("NFD Error: %s", NFD_GetError());
+        return bfs::path();
+    }
+
+    return bfs::absolute(outPath);
+}
+
 bool EditorSystem::OnInputCommand(const Events::InputCommand& e)
 {
     if (e.Command == "ToggleEditor" && e.Value > 0) {
@@ -81,17 +111,24 @@ bool EditorSystem::OnMousePress(const Events::MousePress& e)
 
 bool EditorSystem::OnMouseMove(const Events::MouseMove& e)
 {
-    if (m_Widget == 0) {
+    if (m_Widget == EntityID_Invalid) {
         return false;
     }
-
+    if (m_Selection == EntityID_Invalid) {
+        return false;
+    }
+    if (m_Selection == m_Widget) {
+        return false;
+    }
+    // TODO: No widgets for root entity until widgets reside in thier own world,
+    // or the widgets will move relative to the root entity being moved, which is WEEEIRD.
     if (m_Selection == 0) {
         return false;
     }
+
     auto widgetTransform = m_World->GetComponent(m_Widget, "Transform");
     glm::vec3 widgetOrientation = widgetTransform["Orientation"];
-
-    glm::quat  totalOrientation = m_Renderer->Camera()->Orientation() * glm::inverse(glm::quat(widgetOrientation));
+    glm::quat totalOrientation = m_Renderer->Camera()->Orientation() * glm::inverse(glm::quat(widgetOrientation));
 
     int width;
     int height;
@@ -122,9 +159,9 @@ bool EditorSystem::OnMouseMove(const Events::MouseMove& e)
             if (m_WidgetSpace == WidgetSpace::Global) {
                 EntityID parent = m_World->GetParent(m_Selection);
                 glm::quat inverseParentOrientation;
-                if (parent != 0) {
+                //if (parent != 0) {
                     inverseParentOrientation = glm::inverse(RenderQueueFactory::AbsoluteOrientation(m_World, parent));
-                }
+                //}
                 (glm::vec3&)m_World->GetComponent(m_Selection, "Transform")["Position"] += inverseParentOrientation * movement;
             } else if (m_WidgetSpace == WidgetSpace::Local) {
                 auto selectionTransform = m_World->GetComponent(m_Selection, "Transform");
@@ -138,12 +175,12 @@ bool EditorSystem::OnMouseMove(const Events::MouseMove& e)
             if (m_WidgetSpace == WidgetSpace::Global) {
                 EntityID parent = m_World->GetParent(m_Selection);
                 glm::quat parentOrientation;
-                if (parent != 0) {
-                    parentOrientation = RenderQueueFactory::AbsoluteOrientation(m_World, parent);
-                }
+                //if (parent != 0) {
+                //    parentOrientation = RenderQueueFactory::AbsoluteOrientation(m_World, parent);
+                //}
                 glm::vec3& selectionOrientation = m_World->GetComponent(m_Selection, "Transform")["Orientation"];
-                //glm::quat currentOrientation = RenderQueueFactory::AbsoluteOrientation(m_World, m_Selection);
-                glm::quat currentOrientation = parentOrientation * glm::quat(selectionOrientation);
+                glm::quat currentOrientation = RenderQueueFactory::AbsoluteOrientation(m_World, m_Selection);
+                //glm::quat currentOrientation = parentOrientation * glm::quat(selectionOrientation);
                 glm::quat deltaOrientation(finalMovement);
                 selectionOrientation = glm::eulerAngles(glm::inverse(parentOrientation) * (deltaOrientation * currentOrientation));
             } else if (m_WidgetSpace == WidgetSpace::Local) {
@@ -204,9 +241,10 @@ bool EditorSystem::OnPicking(const Events::Picking& e)
         auto result = e.Pick(pos);
         EntityID entity = result.Entity;
         if (glm::length2(m_WidgetCurrentAxis) > 0.f) {
+            // ???
         } else {
             LOG_INFO("Selected %i", entity);
-            if (entity != 0) {
+            if (entity != EntityID_Invalid) {
                 EntityID parent = m_World->GetParent(entity);
                 if (parent == m_Widget) {
                     m_WidgetCurrentAxis = glm::vec3(
@@ -221,11 +259,12 @@ bool EditorSystem::OnPicking(const Events::Picking& e)
                     //widgetTransform["Position"] = (glm::vec3)selectionTransform["Position"];
                 } else {
                     ImGui::SetActiveID(0, nullptr);
-                    m_Selection = entity;
+                    if (m_WidgetMode == WidgetMode::None) {
+                        m_WidgetMode = WidgetMode::Translate;
+                    }
                     setWidgetMode(m_WidgetMode);
+                    m_Selection = entity;
                 }
-            } else {
-                m_Selection = 0;
             }
         }
     }
@@ -240,9 +279,9 @@ bool EditorSystem::OnFileDropped(const Events::FileDropped& e)
     return true;
 }
 
-void EditorSystem::updateWidget()
+void EditorSystem::createWidget()
 {
-    if (m_Widget == 0) {
+    if (m_Widget == EntityID_Invalid) {
         m_Widget = m_World->CreateEntity();
         m_World->AttachComponent(m_Widget, "Transform");
         m_WidgetX = m_World->CreateEntity(m_Widget);
@@ -269,10 +308,20 @@ void EditorSystem::updateWidget()
         m_WidgetOrigin = m_World->CreateEntity(m_Widget);
         m_World->AttachComponent(m_WidgetOrigin, "Transform");
         m_World->AttachComponent(m_WidgetOrigin, "Model");
-        setWidgetMode(WidgetMode::Translate);
+        setWidgetMode(WidgetMode::None);
+    }
+}
+
+void EditorSystem::updateWidget()
+{
+    if (m_Widget == EntityID_Invalid) {
+        return;
+    }
+    if (m_Selection == m_Widget) {
+        return;
     }
 
-    if (m_Selection != 0) {
+    if (m_Selection != EntityID_Invalid) {
         auto widgetTransform = m_World->GetComponent(m_Widget, "Transform");
         glm::vec3 selectionPosition = RenderQueueFactory::AbsolutePosition(m_World, m_Selection);
         widgetTransform["Position"] = selectionPosition;
@@ -284,7 +333,7 @@ void EditorSystem::updateWidget()
 
 void EditorSystem::setWidgetMode(WidgetMode newMode)
 {
-    if (m_Widget == 0) {
+    if (m_Widget == EntityID_Invalid) {
         return;
     }
 
@@ -309,7 +358,7 @@ void EditorSystem::setWidgetMode(WidgetMode newMode)
             m_World->GetComponent(m_WidgetPlaneY, "Model")["Visible"] = true;
             m_World->GetComponent(m_WidgetPlaneZ, "Model")["Visible"] = true;
         }
-        if (m_Selection != 0) {
+        if (m_Selection != EntityID_Invalid) {
             if (m_WidgetSpace == WidgetSpace::Local) {
                 auto selectionTransform = m_World->GetComponent(m_Selection, "Transform");
                 widgetTransform["Orientation"] = glm::eulerAngles(RenderQueueFactory::AbsoluteOrientation(m_World, m_Selection));
@@ -321,7 +370,7 @@ void EditorSystem::setWidgetMode(WidgetMode newMode)
         m_World->GetComponent(m_WidgetZ, "Model")["Resource"] = "Models/ScaleWidgetZ.obj";
         m_World->GetComponent(m_WidgetOrigin, "Model")["Visible"] = true;
         m_World->GetComponent(m_WidgetOrigin, "Model")["Resource"] = "Models/ScaleWidgetOrigin.obj";
-        if (m_Selection != 0) {
+        if (m_Selection != EntityID_Invalid) {
             auto selectionTransform = m_World->GetComponent(m_Selection, "Transform");
             widgetTransform["Orientation"] = glm::eulerAngles(RenderQueueFactory::AbsoluteOrientation(m_World, m_Selection));
         }
@@ -329,7 +378,7 @@ void EditorSystem::setWidgetMode(WidgetMode newMode)
         m_World->GetComponent(m_WidgetX, "Model")["Resource"] = "Models/RotationWidgetX.obj";
         m_World->GetComponent(m_WidgetY, "Model")["Resource"] = "Models/RotationWidgetY.obj";
         m_World->GetComponent(m_WidgetZ, "Model")["Resource"] = "Models/RotationWidgetZ.obj";
-        if (m_Selection != 0) {
+        if (m_Selection != EntityID_Invalid) {
             auto selectionTransform = m_World->GetComponent(m_Selection, "Transform");
             if (m_WidgetSpace == WidgetSpace::Local) {
                 widgetTransform["Orientation"] = glm::eulerAngles(RenderQueueFactory::AbsoluteOrientation(m_World, m_Selection));
@@ -339,7 +388,6 @@ void EditorSystem::setWidgetMode(WidgetMode newMode)
     m_WidgetMode = newMode;
 }
 
-
 void EditorSystem::setWidgetSpace(WidgetSpace space)
 {
     m_WidgetSpace = space;
@@ -348,16 +396,23 @@ void EditorSystem::setWidgetSpace(WidgetSpace space)
 
 void EditorSystem::drawUI(World* world, double dt)
 {
+    namespace bfs = boost::filesystem;
+
     ImGui::ShowTestWindow();
     //ImGui::ShowStyleEditor();
 
     if (ImGui::BeginMainMenuBar()) {
         if (ImGui::BeginMenu("File")) {
-
-            if (ImGui::MenuItem("New")) { }
-            if (ImGui::MenuItem("Open", "Ctrl+O")) { }
-            if (ImGui::MenuItem("Save", "Ctrl+S")) { }
-            if (ImGui::MenuItem("Save As...", "Ctrl+Shift+S")) { }
+            //if (ImGui::MenuItem("New")) { }
+            if (ImGui::MenuItem("Import", "Ctrl+O")) {
+                fileImport(world);
+            }
+            if (ImGui::MenuItem("Save", "Ctrl+S")) {
+                fileSave(world);
+            }
+            if (ImGui::MenuItem("Save As...", "Ctrl+Shift+S")) {
+                fileSaveAs(world);
+            }
             ImGui::Separator();
             if (ImGui::MenuItem("Close Editor", "F1")) { }
 
@@ -392,7 +447,7 @@ void EditorSystem::drawUI(World* world, double dt)
 
     std::string title = std::string("Components #") + std::to_string(m_Selection) + std::string("###Components");
     if (ImGui::Begin(title.c_str())) {
-        if (m_Selection != 0) {
+        if (m_Selection != EntityID_Invalid) {
             auto& pools = world->GetComponentPools();
 
             std::vector<const char*> componentTypes;
@@ -432,16 +487,16 @@ void EditorSystem::drawUI(World* world, double dt)
                     }
 
                     auto& component = world->GetComponent(m_Selection, componentType);
-                    for (auto& pair : ci.FieldTypes) {
-                        const std::string& field = pair.first;
-                        const std::string& type = pair.second;
+                    for (auto& kv : ci.Fields) {
+                        const std::string& fieldName = kv.first;
+                        auto& field = kv.second;
                         
-                        ImGui::PushID(field.c_str());
-                        if (type == "Vector") {
-                            auto& val = component.Property<glm::vec3>(field);
-                            if (field == "Scale") {
+                        ImGui::PushID(fieldName.c_str());
+                        if (field.Type == "Vector") {
+                            auto& val = component.Property<glm::vec3>(fieldName);
+                            if (fieldName == "Scale") {
                                 ImGui::DragFloat3("", glm::value_ptr(val), 0.1f, 0.f, std::numeric_limits<float>::max());
-                            } else if (field == "Orientation") {
+                            } else if (fieldName == "Orientation") {
                                 glm::vec3 tempVal = glm::fmod(val, glm::vec3(glm::two_pi<float>()));
                                 if (ImGui::SliderFloat3("", glm::value_ptr(tempVal), 0.f, glm::two_pi<float>())) {
                                     val = tempVal;
@@ -449,16 +504,16 @@ void EditorSystem::drawUI(World* world, double dt)
                             } else {
                                 ImGui::DragFloat3("", glm::value_ptr(val), 0.1f, std::numeric_limits<float>::lowest(), std::numeric_limits<float>::max());
                             }
-                        } else if (type == "Color") {
-                            auto& val = component.Property<glm::vec4>(field);
+                        } else if (field.Type == "Color") {
+                            auto& val = component.Property<glm::vec4>(fieldName);
                             ImGui::ColorEdit4("", glm::value_ptr(val), true);
-                        } else if (type == "string") {
-                            std::string& val = component.Property<std::string>(field);
+                        } else if (field.Type == "string") {
+                            std::string& val = component.Property<std::string>(fieldName);
                             char tempString[1024];
                             memcpy(tempString, val.c_str(), std::min(val.length() + 1, sizeof(tempString)));
                             if (ImGui::InputText("", tempString, sizeof(tempString))) {
                                 val = std::string(tempString);
-                                LOG_DEBUG("%s::%s changed!", componentType.c_str(), field.c_str());
+                                LOG_DEBUG("%s::%s changed!", componentType.c_str(), fieldName.c_str());
                             }
                             // DROP STUFF
                             if (ImGui::IsItemHovered() && !m_LastDroppedFile.empty()) {
@@ -466,21 +521,21 @@ void EditorSystem::drawUI(World* world, double dt)
                                 m_LastDroppedFile = "";
                             }
 
-                        } else if (type == "double") {
-                            float tempVal = static_cast<float>(component.Property<double>(field));
+                        } else if (field.Type == "double") {
+                            float tempVal = static_cast<float>(component.Property<double>(fieldName));
                             if (ImGui::InputFloat("", &tempVal, 0.01f, 1.f)) {
-                                component.SetProperty(field, static_cast<double>(tempVal));
+                                component.SetProperty(fieldName, static_cast<double>(tempVal));
                             }
-                        } else if (type == "bool") {
-                            auto& val = component.Property<bool>(field);
+                        } else if (field.Type == "bool") {
+                            auto& val = component.Property<bool>(fieldName);
                             ImGui::Checkbox("", &val);
                         } else {
-                            ImGui::TextDisabled(type.c_str());
+                            ImGui::TextDisabled(field.Type.c_str());
                         }
                         ImGui::PopID();
 
                         ImGui::SameLine();
-                        ImGui::Text(field.c_str());
+                        ImGui::Text(fieldName.c_str());
                         if (ImGui::IsItemHovered()) {
                             ImGui::SetTooltip("field annotation goes here");
                         }
@@ -492,74 +547,93 @@ void EditorSystem::drawUI(World* world, double dt)
     }
     ImGui::End();
 
-    if (ImGui::Begin("Entitites")) {
-        static EntityID draggingEntity = 0;
+    if (ImGui::Begin("Entities")) {
         auto entityChildren = world->GetEntityChildren();
         std::function<void(EntityID)> recurse = [&](EntityID parent) {
             auto range = entityChildren.equal_range(parent);
             for (auto it = range.first; it != range.second; it++) {
-
-                ImVec2 pos = ImGui::GetCursorScreenPos();
-                float width = ImGui::GetContentRegionAvailWidth();
-                ImRect bb(pos + ImVec2(20, 0), pos + ImVec2(width, 13));
-                auto window = ImGui::GetCurrentWindow();
-                if (m_Selection == it->second) {
-                    const ImU32 col = window->Color(ImGuiCol_HeaderActive);
-                    window->DrawList->AddRectFilled(bb.Min, bb.Max, col);
-                }
-                ImGuiID id = window->GetID((std::string("#SelectButton") + std::to_string(it->second)).c_str());
-                bool hovered = false;
-                bool held = false;
-                if (ImGui::ButtonBehavior(bb, id, &hovered, &held)) {
-                    m_Selection = it->second;
-                }
-                if (held) {
-                    ImVec2 entityDragDelta = ImGui::GetMouseDragDelta(0);
-                    if (std::abs(entityDragDelta.x) > 0 && std::abs(entityDragDelta.y) > 0) {
-                        if (draggingEntity == 0) {
-                            draggingEntity = it->second;
-                            LOG_DEBUG("Started drag of entity %i", draggingEntity);
-                        }
-                        ImGui::SetNextWindowPos(ImGui::GetIO().MousePos + ImVec2(20, 0));
-                        ImGui::Begin("Change parent", nullptr, ImVec2(0, 0), 0.3f, ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoSavedSettings);
-                        ImGui::Text("#%i", draggingEntity);
-                        ImGui::End();
-                    }
-                }
-
-                ImGui::SetNextTreeNodeOpened(true, ImGuiSetCond_Once);
-                if (ImGui::TreeNode((std::string("#") + std::to_string(it->second)).c_str())) {
-                    if (draggingEntity != 0 && ImGui::IsItemHoveredRect() && ImGui::IsMouseReleased(0)) {
-                        LOG_DEBUG("Changed parent of %i to %i", draggingEntity, it->second);
-                        changeParent(draggingEntity, it->second);
-                        draggingEntity = 0;
-                    }
-
-                    if (ImGui::BeginPopupContextItem("item context menu")) {
-                        if (ImGui::Button("Add")) {
-                            EntityID entity = world->CreateEntity(it->second);
-                            world->AttachComponent(entity, "Transform");
-                        }
-                        ImGui::SameLine();
-                        if (ImGui::Button("Delete")) {
-                            world->DeleteEntity(it->second);
-                            ImGui::CloseCurrentPopup();
-                            if (m_Selection == it->second) {
-                                m_Selection = 0;
-                            }
-                        }
-                        ImGui::EndPopup();
-                    }
+                if (createEntityNode(world, it->second)) {
                     recurse(it->second);
                     ImGui::TreePop();
                 }
             }
         };
-        recurse(0);
+        recurse(EntityID_Invalid);
     }
     ImGui::End();
 }
 
+bool EditorSystem::createEntityNode(World* world, EntityID entity)
+{
+    // HACK: Don't show the widget entities in the entity tree
+    if (entity == m_Widget) {
+        return false;
+    }
+
+    ImVec2 pos = ImGui::GetCursorScreenPos();
+    float width = ImGui::GetContentRegionAvailWidth();
+    ImRect bb(pos + ImVec2(20, 0), pos + ImVec2(width, 13));
+    auto window = ImGui::GetCurrentWindow();
+    if (m_Selection == entity) {
+        const ImU32 col = window->Color(ImGuiCol_HeaderActive);
+        window->DrawList->AddRectFilled(bb.Min, bb.Max, col);
+    }
+    ImGuiID id = window->GetID((std::string("#SelectButton") + std::to_string(entity)).c_str());
+    bool hovered = false;
+    bool held = false;
+    if (ImGui::ButtonBehavior(bb, id, &hovered, &held)) {
+        m_Selection = entity;
+    }
+    if (held) {
+        ImVec2 entityDragDelta = ImGui::GetMouseDragDelta(0);
+        if (std::abs(entityDragDelta.x) > 0 && std::abs(entityDragDelta.y) > 0) {
+            if (m_UIDraggingEntity == EntityID_Invalid) {
+                m_UIDraggingEntity = entity;
+                LOG_DEBUG("Started drag of entity %i", m_UIDraggingEntity);
+            }
+            ImGui::SetNextWindowPos(ImGui::GetIO().MousePos + ImVec2(20, 0));
+            ImGui::Begin("Change parent", nullptr, ImVec2(0, 0), 0.3f, ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoSavedSettings);
+            ImGui::Text("#%i", m_UIDraggingEntity);
+            ImGui::End();
+        }
+    }
+
+    ImGui::SetNextTreeNodeOpened(true, ImGuiSetCond_Once);
+    std::string nodeTitle;
+    const std::string& entityName = world->GetName(entity);
+    if (!entityName.empty()) {
+        nodeTitle = entityName;
+    } else {
+        nodeTitle = std::string("#") + std::to_string(entity);
+    }
+    if (ImGui::TreeNode(nodeTitle.c_str())) {
+        if (m_UIDraggingEntity != EntityID_Invalid && ImGui::IsItemHoveredRect() && ImGui::IsMouseReleased(0)) {
+            LOG_DEBUG("Changed parent of %i to %i", m_UIDraggingEntity, entity);
+            changeParent(m_UIDraggingEntity, entity);
+            m_UIDraggingEntity = EntityID_Invalid;
+        }
+
+        if (ImGui::BeginPopupContextItem("item context menu")) {
+            if (ImGui::Button("Add")) {
+                EntityID newEntity = world->CreateEntity(entity);
+                world->AttachComponent(newEntity, "Transform");
+            }
+            ImGui::SameLine();
+            if (ImGui::Button("Delete")) {
+                world->DeleteEntity(entity);
+                ImGui::CloseCurrentPopup();
+                if (!world->ValidEntity(m_Selection)) {
+                    m_Selection = EntityID_Invalid;
+                }
+            }
+            ImGui::EndPopup();
+        }
+        return true;
+    } else {
+        return false;
+    }
+}
+
 bool EditorSystem::createDeleteButton(std::string componentType)
 {
     float width = ImGui::GetContentRegionAvailWidth();
@@ -594,3 +668,48 @@ void EditorSystem::changeParent(EntityID entity, EntityID newParent)
 
     m_World->SetParent(entity, newParent);
 }
+
+void EditorSystem::fileImport(World* world)
+{
+    m_CurrentFile = openDialog(m_DefaultEntityDir);
+    auto file = ResourceManager::Load<EntityFile>(m_CurrentFile.string());
+    EntityFilePreprocessor fpp(file);
+    fpp.RegisterComponents(world);
+    EntityFileParser fp(file);
+    fp.MergeEntities(world);
+    createWidget();
+    updateWidget();
+}
+
+void EditorSystem::fileSave(World* world)
+{
+    if (boost::filesystem::exists(m_CurrentFile)) {
+        // HACK: Delete the widgets so they don't appear in the saved file
+        world->DeleteEntity(m_Widget);
+        m_Widget = EntityID_Invalid;
+
+        EntityFileWriter writer(m_CurrentFile.string());
+        writer.WriteWorld(world);
+
+        createWidget();
+    } else {
+        fileSaveAs(world);
+    }
+}
+
+void EditorSystem::fileSaveAs(World* world)
+{
+    auto filePath = saveDialog(m_DefaultEntityDir);
+    if (filePath.empty()) {
+        return;
+    }
+
+    // HACK: Delete the widgets so they don't appear in the saved file
+    world->DeleteEntity(m_Widget);
+    m_Widget = EntityID_Invalid;
+
+    EntityFileWriter writer(filePath.string());
+    writer.WriteWorld(world);
+
+    createWidget();
+}

src/Engine/Input/InputProxy.cpp

@@ -62,7 +62,7 @@ void InputProxy::Process()
             e.Command = command;
             e.Value = currentValue;
             m_EventBroker->Publish(e);
-            LOG_DEBUG("Input: Published command %s=%f for player %i", e.Command.c_str(), e.Value, e.PlayerID);
+            //LOG_DEBUG("Input: Published command %s=%f for player %i", e.Command.c_str(), e.Value, e.PlayerID);
             m_LastCommandValues[command] = currentValue;
         }
     }
@@ -78,7 +78,7 @@ void InputProxy::Process()
         }
         //e.Value = std::max(-1.f, std::min(e.Value, 1.f));
         m_EventBroker->Publish(e);
-        LOG_DEBUG("Input: Published command %s=%f for player %i", e.Command.c_str(), e.Value, e.PlayerID);
+        //LOG_DEBUG("Input: Published command %s=%f for player %i", e.Command.c_str(), e.Value, e.PlayerID);
     }
     m_CommandQueue.clear();
 }

src/Engine/Rendering/DrawFinalPass.cpp

@@ -1,65 +0,0 @@
-#include "Rendering/DrawFinalPass.h"
-
-DrawFinalPass::DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass)
-{
-    m_Renderer = renderer;
-    m_LightCullingPass = lightCullingPass;
-    InitializeTextures();
-    InitializeShaderPrograms();
-}
-
-void DrawFinalPass::InitializeTextures()
-{
-    m_WhiteTexture = ResourceManager::Load<Texture>("Textures/Core/Blank.png");
-}
-
-void DrawFinalPass::InitializeShaderPrograms()
-{
-    m_ForwardPlusProgram = ResourceManager::Load<ShaderProgram>("#ForwardPlusProgram");
-    m_ForwardPlusProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/ForwardPlus.vert.glsl")));
-    m_ForwardPlusProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/ForwardPlus.frag.glsl")));
-    m_ForwardPlusProgram->Compile();
-    m_ForwardPlusProgram->Link();
-}
-
-void DrawFinalPass::Draw(RenderQueueCollection& rq)
-{
-    GLERROR("DrawFinalPass::Draw: Pre");
-
-    DrawFinalPassState state;
-    m_ForwardPlusProgram->Bind();
-    GLuint shaderHandle = m_ForwardPlusProgram->GetHandle();
-
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, m_LightCullingPass->LightSSBO());
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, m_LightCullingPass->LightGridSSBO());
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 4, m_LightCullingPass->LightIndexSSBO());
-
-    glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "V"), 1, GL_FALSE, glm::value_ptr(m_Renderer->Camera()->ViewMatrix()));
-    glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "P"), 1, GL_FALSE, glm::value_ptr(m_Renderer->Camera()->ProjectionMatrix()));
-
-    //TODO: Render: Add code for more jobs than modeljobs.
-    for (auto &job : rq.Forward) {
-        auto modelJob = std::dynamic_pointer_cast<ModelJob>(job);
-        if(modelJob) {
-            //TODO: Kolla upp "header/include/common" shader saken så man slipper skicka in asmycket uniforms
-            glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(modelJob->ModelMatrix));
-            glUniform4fv(glGetUniformLocation(shaderHandle, "Color"), 1, glm::value_ptr(modelJob->Color));
-
-            if(modelJob->DiffuseTexture != nullptr) {
-                glActiveTexture(GL_TEXTURE0);
-                glBindTexture(GL_TEXTURE_2D, modelJob->DiffuseTexture->m_Texture);
-            } else {
-                glActiveTexture(GL_TEXTURE0);
-                glBindTexture(GL_TEXTURE_2D, m_WhiteTexture->m_Texture);
-            }
-
-            glBindVertexArray(modelJob->Model->VAO);
-            glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, modelJob->Model->ElementBuffer);
-            glDrawElementsBaseVertex(GL_TRIANGLES, modelJob->EndIndex - modelJob->StartIndex + 1, GL_UNSIGNED_INT, 0, modelJob->StartIndex);
-
-            continue;
-        }
-    }
-    GLERROR("DrawFinalPass::Draw: END");
-
-}

src/Engine/Rendering/DrawFinalPassState.cpp

@@ -1,17 +0,0 @@
-#include "Rendering/DrawFinalPassState.h"
-
-
-DrawFinalPassState::DrawFinalPassState()
-{
-    BindFramebuffer(0);
-
-    Enable(GL_DEPTH_TEST);
-    Enable(GL_CULL_FACE);
-    ClearColor(glm::vec4(200.f / 255, 0.f / 255, 200.f / 255, 0.f));
-    Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-DrawFinalPassState::~DrawFinalPassState()
-{
-
-}

src/Engine/Rendering/DrawScenePass.cpp

@@ -14,21 +14,23 @@ void DrawScenePass::InitializeTextures()
 
 void DrawScenePass::InitializeShaderPrograms()
 {
+    //Gör så att shaders är en resource, tex som texture classen. Konstruktorn måste vara privat.
     m_BasicForwardProgram = ResourceManager::Load<ShaderProgram>("#BasicForwardProgram");
 
     m_BasicForwardProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/BasicForward.vert.glsl")));
     m_BasicForwardProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/BasicForward.frag.glsl")));
     m_BasicForwardProgram->Compile();
     m_BasicForwardProgram->Link();
+
+
 }
 
 void DrawScenePass::Draw(RenderQueueCollection& rq)
 {
     //glBindFramebuffer(GL_FRAMEBUFFER, 0);
-    GLERROR("DrawScenePass::Draw: Pre");
+    GLERROR("Renderer::Draw PickingPass");
 
     DrawScenePassState state;
-    m_BasicForwardProgram->Bind();
 
 
     //TODO: Render: Add code for more jobs than modeljobs.
@@ -37,6 +39,7 @@ void DrawScenePass::Draw(RenderQueueCollection& rq)
         if (modelJob) {
             GLuint ShaderHandle = m_BasicForwardProgram->GetHandle();
 
+            m_BasicForwardProgram->Bind();
             //TODO: Kolla upp "header/include/common" shader saken så man slipper skicka in asmycket uniforms
             glUniformMatrix4fv(glGetUniformLocation(ShaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(modelJob->ModelMatrix));
             glUniformMatrix4fv(glGetUniformLocation(ShaderHandle, "V"), 1, GL_FALSE, glm::value_ptr(m_Renderer->Camera()->ViewMatrix()));
@@ -58,12 +61,6 @@ void DrawScenePass::Draw(RenderQueueCollection& rq)
 
             continue;
         }
-        auto spriteJob = std::dynamic_pointer_cast<SpriteJob>(job);
-        if(spriteJob)
-        {
-            //Hello im a sprite, please draw me.
-        }
-
     }
-    GLERROR("DrawScenePass::Draw: End");
+    GLERROR("DrawScene Error");
 }

src/Engine/Rendering/LightCullingPass.cpp

@@ -1,126 +0,0 @@
-#include "Rendering/LightCullingPass.h"
-
-LightCullingPass::LightCullingPass(IRenderer* renderer)
-{
-    m_Renderer = renderer;
-    InitializeSSBOs();
-    InitializeShaderPrograms();
-    GenerateNewFrustum();
-}
-
-LightCullingPass::~LightCullingPass()
-{
-
-}
-
-void LightCullingPass::GenerateNewFrustum()
-{
-    GLERROR("CalculateFrustum Error: Pre");
-
-    m_CalculateFrustumProgram->Bind();
-
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, m_FrustumSSBO);
-    glUniformMatrix4fv(glGetUniformLocation(m_CalculateFrustumProgram->GetHandle(), "P"), 1, false, glm::value_ptr(m_Renderer->Camera()->ProjectionMatrix()));
-    glUniform2f(glGetUniformLocation(m_CalculateFrustumProgram->GetHandle(), "ScreenDimensions"), m_Renderer->Resolution().Width, m_Renderer->Resolution().Height);
-    glDispatchCompute(5, 3, 1); //TODO: Renderer: This needs change so resolution will be right.
-
-    GLERROR("CalculateFrustum Error: End");
-}
-
-void LightCullingPass::CullLights()
-{
-    GLERROR("CullLights Error: Pre");
-    m_LightOffset = 0;
-
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightOffsetSSBO);
-    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightOffset), &m_LightOffset, GL_DYNAMIC_COPY);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightSSBO);
-    if (m_PointLights.size() > 0) {
-        glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(PointLight) * m_PointLights.size(), &(m_PointLights[0]), GL_DYNAMIC_COPY);
-    } else {
-        GLfloat zero = 0.f;
-        glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GLfloat), &zero , GL_DYNAMIC_COPY);
-
-    }
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
-
-    m_LightCullProgram->Bind();
-    glUniformMatrix4fv(glGetUniformLocation(m_LightCullProgram->GetHandle(), "V"), 1, false, glm::value_ptr(m_Renderer->Camera()->ViewMatrix()));
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, m_FrustumSSBO);
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, m_LightSSBO);
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, m_LightGridSSBO);
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 3, m_LightOffsetSSBO);
-    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 4, m_LightIndexSSBO);
-    glDispatchCompute(m_Renderer->Resolution().Width / TILE_SIZE, m_Renderer->Resolution().Height / TILE_SIZE, 1);
-
-    GLERROR("CullLights Error: End");
-}
-
-void LightCullingPass::FillLightList(RenderQueueCollection& rq)
-{
-    m_PointLights.clear();
-    for(auto &job : rq.Lights) {
-        auto pointLightjob = std::dynamic_pointer_cast<PointLightJob>(job);
-        if (pointLightjob) {
-            PointLight p;
-            p.Color = pointLightjob->Color;
-            p.Falloff = pointLightjob->Falloff;
-            p.Intensity = pointLightjob->Intensity;
-            p.Position = glm::vec4(glm::vec3(pointLightjob->Position), 1.f);
-            p.Radius = pointLightjob->Radius;
-            p.Padding = 123.f;
-            m_PointLights.push_back(p);
-            continue;
-        }
-    }
-}
-
-void LightCullingPass::InitializeSSBOs()
-{
-    glGenBuffers(1, &m_FrustumSSBO);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_FrustumSSBO);
-    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_Frustums), &m_Frustums, GL_DYNAMIC_COPY);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
-    GLERROR("m_FrustumSSBO");
-
-    glGenBuffers(1, &m_LightSSBO);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightSSBO);
-    if(m_PointLights.size() > 0) {
-        glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(PointLight) * m_PointLights.size(), &(m_PointLights[0]), GL_DYNAMIC_COPY);
-    }
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
-    GLERROR("m_LightSSBO");
-
-    glGenBuffers(1, &m_LightGridSSBO);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightGridSSBO);
-    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightGrid), &m_LightGrid, GL_DYNAMIC_COPY);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
-    GLERROR("m_LightGridSSBO");
-
-
-    glGenBuffers(1, &m_LightOffsetSSBO);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightOffsetSSBO);
-    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightOffset), &m_LightOffset, GL_DYNAMIC_COPY);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
-    GLERROR("m_LightOffsetSSBO");
-
-    glGenBuffers(1, &m_LightIndexSSBO);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightIndexSSBO);
-    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightIndex), &m_LightIndex, GL_DYNAMIC_COPY);
-    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
-    GLERROR("m_LightIndexSSBO");
-}
-
-void LightCullingPass::InitializeShaderPrograms()
-{
-    m_CalculateFrustumProgram = ResourceManager::Load<ShaderProgram>("#CalculateFrustumProgram");
-    m_CalculateFrustumProgram->AddShader(std::shared_ptr<Shader>(new ComputeShader("Shaders/GridFrustum.comp.glsl")));
-    m_CalculateFrustumProgram->Compile();
-    m_CalculateFrustumProgram->Link();
-
-    m_LightCullProgram = ResourceManager::Load<ShaderProgram>("#LightCullProgram");
-    m_LightCullProgram->AddShader(std::shared_ptr<Shader>(new ComputeShader("Shaders/CullLights.comp.glsl")));
-    m_LightCullProgram->Compile();
-    m_LightCullProgram->Link();
-}
-

src/Engine/Rendering/RenderQueueFactory.cpp

@@ -27,16 +27,16 @@ glm::vec3 RenderQueueFactory::AbsolutePosition(World* world, EntityID entity)
 {
     glm::vec3 position;
 
-    do {
+    while (entity != EntityID_Invalid) {
         ComponentWrapper transform = world->GetComponent(entity, "Transform");
         EntityID parent = world->GetParent(entity);
-        if (parent != 0) {
+        //if (parent != EntityID_Invalid) {
             position += AbsoluteOrientation(world, parent) * (glm::vec3)transform["Position"];
-        } else {
-            position += (glm::vec3)transform["Position"];
-        }
+        //} else {
+        //    position += (glm::vec3)transform["Position"];
+        //}
         entity = parent;
-    } while (entity != 0);
+    }
    
     return position;
 }
@@ -45,11 +45,11 @@ glm::quat RenderQueueFactory::AbsoluteOrientation(World* world, EntityID entity)
 {
     glm::quat orientation;
 
-    do {
+    while (entity != EntityID_Invalid) {
         ComponentWrapper transform = world->GetComponent(entity, "Transform");
         orientation = glm::quat((glm::vec3)transform["Orientation"]) * orientation;
         entity = world->GetParent(entity);
-    } while (entity != 0);
+    }
     
     return orientation;
 }
@@ -58,11 +58,11 @@ glm::vec3 RenderQueueFactory::AbsoluteScale(World* world, EntityID entity)
 {
     glm::vec3 scale(1.f);
 
-    do {
+    while (entity != EntityID_Invalid) {
         ComponentWrapper transform = world->GetComponent(entity, "Transform");
         scale *= (glm::vec3)transform["Scale"];
         entity = world->GetParent(entity);
-    } while (entity != 0);
+    }
 
     return scale;
 }
@@ -111,34 +111,6 @@ void RenderQueueFactory::FillModels(World* world, RenderQueue* renderQueue)
 
 void RenderQueueFactory::FillLights(World* world, RenderQueue* renderQueue)
 {
-    auto pointLights = world->GetComponents("PointLight");
-    if(pointLights == nullptr) {
-        return;
-    }
 
-    for(auto& pointlightC : *pointLights) {
-        bool visible = pointlightC["Visible"];
-        if(!visible) {
-            continue;
-        }
-        auto transformC = world->GetComponent(pointlightC.EntityID, "Transform");
-        if(&transformC == nullptr) {
-            return;
-        }
-
-        glm::vec4 color = pointlightC["Color"];
-        float radius = (double)pointlightC["Radius"];
-        float intensity = (double)pointlightC["Intensity"];
-        float falloff = (double)pointlightC["Falloff"];
-
-        PointLightJob job;
-        job.Position = glm::vec4(AbsolutePosition(world, transformC.EntityID), 1.f);
-        job.Color = color;
-        job.Radius = radius;
-        job.Intensity = intensity;
-        job.Falloff = falloff;
-
-        renderQueue->Add(job);
-    }
 }
 

src/Engine/Rendering/RenderState.cpp

@@ -3,7 +3,6 @@
 bool RenderState::Enable(GLenum cap)
 {
     if (glIsEnabled(cap)) {
-        //LOG_WARNING("Trying to enable somthing that is already enabled.");
         return false;
     }
     m_ResetFunctions.push_back(std::bind(glDisable, cap));

src/Engine/Rendering/Renderer.cpp

@@ -4,17 +4,20 @@ void Renderer::Initialize()
 {
 	InitializeWindow();
 	// Create default camera
-	m_DefaultCamera = new ::Camera((float)m_Resolution.Width / m_Resolution.Height, glm::radians(90.0f), 0.01f, 5000.f);
-	m_DefaultCamera->SetPosition(glm::vec3(0, 1, 10));
+	m_DefaultCamera = new ::Camera((float)m_Resolution.Width / m_Resolution.Height, glm::radians(45.f), 0.01f, 5000.f);
+	m_DefaultCamera->SetPosition(glm::vec3(0, 0, 10));
 	if (m_Camera == nullptr) {
 		m_Camera = m_DefaultCamera;
 	}
     m_DebugCameraInputController = std::make_shared<DebugCameraInputController<Renderer>>(m_EventBroker, -1);
+    TEMPCreateLights();
     InitializeRenderPasses();
 
 	glfwSwapInterval(m_VSYNC);
 	InitializeShaders();
     InitializeTextures();
+    InitializeSSBOs();
+    //CalculateFrustum();
 
     m_ScreenQuad = ResourceManager::Load<Model>("Models/Core/ScreenQuad.obj");
     m_UnitQuad = ResourceManager::Load<Model>("Models/Core/UnitQuad.obj");
@@ -72,10 +75,49 @@ void Renderer::InitializeShaders()
     m_DrawScreenQuadProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/DrawScreenQuad.frag.glsl")));
     m_DrawScreenQuadProgram->Compile();
     m_DrawScreenQuadProgram->Link();
+
+    //m_CalculateFrustumProgram = ResourceManager::Load<ShaderProgram>("#CalculateFrustumProgram");
+    //m_CalculateFrustumProgram.AddShader(std::shared_ptr<Shader>(new ComputeShader("Shaders/GridFrustum.comp.glsl")));
+    //m_CalculateFrustumProgram.Compile();
+    //m_CalculateFrustumProgram.Link();
+
+    //m_LightCullProgram = ResourceManager::Load<ShaderProgram>("#LightCullProgram");
+    //m_LightCullProgram.AddShader(std::shared_ptr<Shader>(new ComputeShader("Shaders/cullLights.comp.glsl")));
+    //m_LightCullProgram.Compile();
+    //m_LightCullProgram.Link();
 }
 
 void Renderer::InputUpdate(double dt)
 {
+	glm::vec3 m_Position = m_Camera->Position();
+	if (glfwGetKey(m_Window, GLFW_KEY_O) == GLFW_PRESS)
+	{
+		m_Position = glm::vec3(0.f, 0.f, 5.f);
+	}
+	if (glfwGetKey(m_Window, GLFW_KEY_W) == GLFW_PRESS)
+	{
+		m_Position += m_Camera->Forward() * m_CameraMoveSpeed * (float)dt;
+	}
+	if (glfwGetKey(m_Window, GLFW_KEY_S) == GLFW_PRESS)
+	{
+		m_Position -= m_Camera->Forward() * m_CameraMoveSpeed * (float)dt;
+	}
+	if (glfwGetKey(m_Window, GLFW_KEY_D) == GLFW_PRESS)
+	{
+		m_Position += m_Camera->Right() * m_CameraMoveSpeed * (float)dt;
+	}
+	if (glfwGetKey(m_Window, GLFW_KEY_A) == GLFW_PRESS)
+	{
+		m_Position -= m_Camera->Right() * m_CameraMoveSpeed * (float)dt;
+	}
+	if (glfwGetKey(m_Window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS)
+	{
+		m_CameraMoveSpeed = 5.f;
+	}
+	else {
+		m_CameraMoveSpeed = 0.5f;
+	}
+
     m_DebugCameraInputController->Update(dt);
     m_Camera->SetOrientation(m_DebugCameraInputController->Orientation());
 	m_Camera->SetPosition(m_DebugCameraInputController->Position());
@@ -92,12 +134,11 @@ void Renderer::Draw(RenderQueueCollection& rq)
 {
     m_PickingPass->Draw(rq);
     //DrawScreenQuad(m_PickingPass->PickingTexture());
-    m_LightCullingPass->FillLightList(rq);
-    m_LightCullingPass->CullLights();
+    //CullLights();
     
-    //m_DrawScenePass->Draw(rq);
-    m_DrawFinalPass->Draw(rq);
     glClearColor(255.f / 255, 163.f / 255, 176.f / 255, 1.f);
+
+    m_DrawScenePass->Draw(rq);
     GLERROR("Renderer::Draw m_DrawScenePass->Draw");
     m_ImGuiRenderPass->Draw();
 	glfwSwapBuffers(m_Window);
@@ -142,10 +183,95 @@ void Renderer::GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filterin
     GLERROR("Texture initialization failed");
 }
 
+void Renderer::InitializeSSBOs()
+{
+    printf("Size: %i\n", sizeof(m_Frustums));
+    glGenBuffers(1, &m_FrustumSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_FrustumSSBO);
+    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_Frustums), &m_Frustums, GL_DYNAMIC_COPY);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, m_FrustumSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+
+    GLERROR("m_FrustumSSBO");
+
+    glGenBuffers(1, &m_LightSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightSSBO);
+    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_PointLights), &m_PointLights, GL_DYNAMIC_COPY);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, m_LightSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+
+    GLERROR("m_LightSSBO");
+
+
+    glGenBuffers(1, &m_LightGridSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightGridSSBO);
+    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightGrid), &m_LightGrid, GL_DYNAMIC_COPY);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, m_LightGridSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+
+    GLERROR("m_LightGridSSBO");
+
+
+    glGenBuffers(1, &m_LightOffsetSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightOffsetSSBO);
+    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightOffset), &m_LightOffset, GL_DYNAMIC_COPY);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 3, m_LightOffsetSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+
+    GLERROR("m_LightOffsetSSBO");
+
+
+    glGenBuffers(1, &m_LightIndexSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightIndexSSBO);
+    glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightIndex), &m_LightIndex, GL_DYNAMIC_COPY);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 4, m_LightIndexSSBO);
+    glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
+
+    GLERROR("m_LightIndexSSBO");
+
+}
+
 void Renderer::InitializeRenderPasses()
 {
     m_DrawScenePass = new DrawScenePass(this);
     m_PickingPass = new PickingPass(this, m_EventBroker);
-    m_LightCullingPass = new LightCullingPass(this);
-    m_DrawFinalPass = new DrawFinalPass(this, m_LightCullingPass);
-}
+}
+
+void Renderer::CalculateFrustum()
+{
+    GLERROR("CalculateFrustum Error-1");
+    m_CalculateFrustumProgram->Bind();
+    
+    GLERROR("CalculateFrustum Error1");
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, m_FrustumSSBO);
+    GLERROR("CalculateFrustum Error2");
+    glUniformMatrix4fv(glGetUniformLocation(m_CalculateFrustumProgram->GetHandle(), "P"), 1, false, glm::value_ptr(m_Camera->ProjectionMatrix()));
+    GLERROR("CalculateFrustum Error3");
+    glUniform2f(glGetUniformLocation(m_CalculateFrustumProgram->GetHandle(), "ScreenDimensions"), m_Resolution.Width, m_Resolution.Height);
+    GLERROR("CalculateFrustum Error4");
+    glDispatchCompute(5, 3, 1);
+    GLERROR("CalculateFrustum Error5");
+
+}
+
+void Renderer::TEMPCreateLights()
+{
+    for (int i = 0; i < NUM_LIGHTS; i++) {
+        m_PointLights[i].Position = glm::vec4(i, 0.f, 0.f, 0.f);
+        m_PointLights[i].Color = glm::vec4(1.f, 0.5f, 0.f + i*0.1f, 1.f);
+    }
+}
+
+void Renderer::CullLights()
+{
+    m_LightCullProgram->Bind();
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, m_FrustumSSBO);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, m_LightSSBO);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, m_LightGridSSBO);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 3, m_LightOffsetSSBO);
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 4, m_LightIndexSSBO);
+    glDispatchCompute(m_Resolution.Width / TILE_SIZE, m_Resolution.Height / TILE_SIZE, 1);
+    GLERROR("CullLights Error");
+
+}
+

src/Game/Game.cpp

@@ -2,14 +2,15 @@
 #include "Collision/TriggerSystem.h"
 #include "Collision/CollisionSystem.h"
 #include "Game/HealthSystem.h"
+#include "Core/EntityFileWriter.h"
 
 Game::Game(int argc, char* argv[])
 {
     ResourceManager::RegisterType<ConfigFile>("ConfigFile");
     ResourceManager::RegisterType<Model>("Model");
     ResourceManager::RegisterType<Texture>("Texture");
-    ResourceManager::RegisterType<EntityXMLFile>("EntityXMLFile");
     ResourceManager::RegisterType<ShaderProgram>("ShaderProgram");
+    ResourceManager::RegisterType<EntityFile>("EntityFile");
 
     m_Config = ResourceManager::Load<ConfigFile>("Config.ini");
     LOG_LEVEL = static_cast<_LOG_LEVEL>(m_Config->Get<int>("Debug.LogLevel", 1));
@@ -48,7 +49,11 @@ Game::Game(int argc, char* argv[])
     m_World = new World();
     std::string mapToLoad = m_Config->Get<std::string>("Debug.LoadMap", "");
     if (!mapToLoad.empty()) {
-        ResourceManager::Load<EntityXMLFile>(mapToLoad)->PopulateWorld(m_World);
+        auto file = ResourceManager::Load<EntityFile>(mapToLoad);
+        EntityFilePreprocessor fpp(file);
+        fpp.RegisterComponents(m_World);
+        EntityFileParser fp(file);
+        fp.MergeEntities(m_World);
     }
 
     // Create system pipeline