Entity parenting on parse

New entity loading and saving

README.md

@@ -1,19 +1,21 @@
 #### 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)                                                                                                          |
+| 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.
 
 | Project                                                    | Version     | License                                                                     | Root folder environment variable (Windows) |
 | ---------------------------------------------------------- | ----------- | --------------------------------------------------------------------------- | ------------------------------------------ |
-| **[Boost](http://www.boost.org)**                          | 1.59.0+     | [Boost Software License, Version 1.0](http://www.boost.org/LICENSE_1_0.txt) | BOOST_ROOT                                 |
+| **[Boost](http://www.boost.org)**                          | 1.60.0+     | [Boost Software License, Version 1.0](http://www.boost.org/LICENSE_1_0.txt) | BOOST_ROOT                                 |

include/Engine/Collision/Collision.h

@@ -0,0 +1,59 @@
+#ifndef Collision_h__
+#define Collision_h__
+
+//NOTE: Collision.h needs to be #included before <GLFW/glfw3.h>, 
+//because Collision #includes "RawModel.h", which has "Texture.h", which has "OpenGL.h" which must be #included first
+//or you will get "fatal error C1189: #error:  gl.h included before glew.h"
+
+#include <vector>
+
+#include "Core/Ray.h"
+#include "Core/AABB.h"
+#include "Engine/Rendering/RawModel.h"
+#include "Core/Entity.h"
+
+class World;
+struct ComponentWrapper;
+
+namespace Collision
+{
+//Return true if the ray hits the box.
+bool RayAABBIntr(const Ray& ray, const AABB& box);
+bool RayVsAABB(const Ray& ray, const AABB& box);
+//Return true if the ray hits the box, also outputs distance from ray origin to intersection point in [outDistance].
+bool RayVsAABB(const Ray& ray, const AABB& box, float& outDistance);
+
+//Return true if the ray hits any of the triangles in the model. Stops checking when a hit is detected.
+bool RayVsModel(const Ray& ray, 
+    const std::vector<RawModel::Vertex>& modelVertices,
+    const std::vector<unsigned int>& modelIndices);
+//Return true if the ray hits any of the triangles in the model.
+//Also returns the position of the intersection point. Will loop through all the whole model indices.
+bool RayVsModel(const Ray& ray,
+    const std::vector<RawModel::Vertex>& modelVertices,
+    const std::vector<unsigned int>& modelIndices,
+    glm::vec3& outHitPosition);
+//Return true if the ray hits any of the triangles in the model.
+//Also returns the distance from the ray origin to the closest 
+//intersection point, and the barycentric u,v-coordinates. Will loop through all the whole model indices.
+bool RayVsModel(const Ray& ray,
+    const std::vector<RawModel::Vertex>& modelVertices,
+    const std::vector<unsigned int>& modelIndices,
+    float& outDistance,
+    float& outUCoord,
+    float& outVCoord);
+
+//Return true if the boxes are intersecting.
+bool AABBVsAABB(const AABB& a, const AABB& b);
+//Return true if the boxes are intersecting.
+//Also outputs the minimum translation that box [a] would need in order to resolve collision.
+bool AABBVsAABB(const AABB& a, const AABB& b, glm::vec3& minimumTranslation);
+bool IsSameBoxProbably(const AABB& first, const AABB& second, const float epsilon = 0.0001f);
+
+//Returns true if the entity has a boundingbox. Outputs the aabb in [outBox].
+bool GetEntityBox(World* world, EntityID entity, AABB& outBox, bool forceBoxFromModel = false);
+bool GetEntityBox(World* world, ComponentWrapper& AABBComponent, AABB& outBox);
+
+}
+
+#endif

include/Engine/Collision/CollisionSystem.h

@@ -0,0 +1,31 @@
+#ifndef CollisionSystem_h__
+#define CollisionSystem_h__
+
+#include <GLFW/glfw3.h>
+#include <glm/common.hpp>
+
+#include "Common.h"
+#include "Core/System.h"
+#include "Core/EventBroker.h"
+#include "Core/EKeyUp.h"
+
+class CollisionSystem : public PureSystem
+{
+public:
+    CollisionSystem(EventBroker* eventBroker)
+        : PureSystem(eventBroker, "AABB")
+        , zPress(false)
+    {
+        //TODO: Debug stuff, remove later.
+        EVENT_SUBSCRIBE_MEMBER(m_EKeyUp, &CollisionSystem::OnKeyUp);
+    }
+
+    virtual void UpdateComponent(World* world, ComponentWrapper& cAABB, double dt) override;
+
+private:
+    bool zPress;
+    EventRelay<CollisionSystem, Events::KeyUp> m_EKeyUp;
+    bool OnKeyUp(const Events::KeyUp &event);
+};
+
+#endif

include/Engine/Collision/ETrigger.h

@@ -0,0 +1,39 @@
+#ifndef Events_TriggerEnter_h__
+#define Events_TriggerEnter_h__
+
+#include "../Core/EventBroker.h"
+#include "../Core/Entity.h"
+
+namespace Events
+{
+
+/** Thrown once, when an entity is only touching a trigger. */
+struct TriggerTouch : Event
+{
+    /** The id of the entity that touches the trigger. */
+    EntityID Entity;
+    /** The id of the trigger entity. */
+    EntityID Trigger;
+};
+
+/** Thrown once, when an entity has completely left a trigger. */
+struct TriggerLeave : Event
+{
+    /** The id of the entity that left the trigger. */
+    EntityID Entity;
+    /** The id of the trigger entity. */
+    EntityID Trigger;
+};
+
+/** Thrown once, when an entity is completely contained inside a trigger. */
+struct TriggerEnter : Event
+{
+    /** The id of the entity that entered the trigger. */
+    EntityID Entity;
+    /** The id of the trigger entity. */
+    EntityID Trigger;
+};
+
+}
+
+#endif

include/Engine/Collision/TriggerSystem.h

@@ -0,0 +1,38 @@
+#ifndef TriggerSystem_h__
+#define TriggerSystem_h__
+
+#include <glm/common.hpp>
+#include <unordered_set>
+
+#include "Core/System.h"
+#include "Core/EventBroker.h"
+#include "ETrigger.h"
+
+class AABB;
+
+class TriggerSystem : public PureSystem
+{
+public:
+    TriggerSystem(EventBroker* eventBroker)
+        : PureSystem(eventBroker, "Trigger")
+    {}
+
+    virtual void UpdateComponent(World* world, ComponentWrapper& collision, double dt) override;
+
+private:
+    std::unordered_map<EntityID, std::unordered_set<EntityID>> m_EntitiesTouchingTrigger;
+    std::unordered_map<EntityID, std::unordered_set<EntityID>> m_EntitiesCompletelyInTrigger;
+
+    //True if leave event was thrown.
+    bool throwLeaveIfWasInTrigger(std::unordered_set<EntityID>& triggerSet, EntityID pId, EntityID tId);
+    template<typename Event>
+    void publish(EntityID pId, EntityID tId)
+    {
+        Event e;
+        e.Trigger = tId;
+        e.Entity = pId;
+        m_EventBroker->Publish(e);
+    }
+};
+
+#endif

include/Engine/Common.h

@@ -4,4 +4,5 @@
 #include <map>
 #include <unordered_map>
 
-#include "Core/Util/Logging.h"
+#include "Core/Util/Logging.h"
+#include "Core/Util/IfDebug.h"

include/Engine/Core/AABB.h

@@ -0,0 +1,29 @@
+#ifndef AABB_h__
+#define AABB_h__
+
+#include "../GLM.h"
+
+class AABB
+{
+public:
+    AABB() = default;
+    //No checks are made. Values in minPos must be less than values in maxPos, i.e. min.x < max.x, etc.
+    AABB(const glm::vec3& minPos, const glm::vec3& maxPos);
+    AABB(const glm::vec4& minPos, const glm::vec4& maxPos);
+    //No checks are made. Size must consist of non-negative numbers.
+    virtual void CreateFromCenter(const glm::vec3& center, const glm::vec3& size);
+    virtual ~AABB();
+
+    const glm::vec3& MinCorner() const { return m_MinCorner; }
+    const glm::vec3& MaxCorner() const { return m_MaxCorner; }
+    const glm::vec3& Center() const { return m_Center; }
+    const glm::vec3 Size() const { return 2.0f * m_HalfSize; }
+    const glm::vec3& HalfSize() const { return m_HalfSize; }
+private:
+    glm::vec3 m_MinCorner;
+    glm::vec3 m_MaxCorner;
+    glm::vec3 m_Center;
+    glm::vec3 m_HalfSize;
+};
+
+#endif

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/ComponentPool.h

@@ -20,7 +20,7 @@ public:
 	~ComponentPoolForwardIterator() = default;
 	ComponentPoolForwardIterator& operator=(const ComponentPoolForwardIterator& other) = default;
 	ComponentPoolForwardIterator& operator++();
-	ComponentPoolForwardIterator& operator++(int);
+	ComponentPoolForwardIterator operator++(int);
 	bool operator!=(const ComponentPoolForwardIterator& other) const;
 	bool operator==(const ComponentPoolForwardIterator& other) const;
 	ComponentWrapper operator*() const;
@@ -54,6 +54,8 @@ public:
     ComponentWrapper Allocate(EntityID entity);
     // Get the component belonging to a specific entity
     ComponentWrapper GetByEntity(EntityID ent);
+    // Returns true if the pool contains a component for the specified entity
+    bool KnowsEntity(EntityID ent);
     // Delete a component and free its memory
     void Delete(ComponentWrapper& wrapper);
 

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/ConfigFile.h

@@ -5,6 +5,7 @@
 #include <boost/filesystem.hpp>
 #include <boost/property_tree/ptree.hpp>
 #include <boost/property_tree/ini_parser.hpp>
+#include <boost/lexical_cast.hpp>
 
 #include "../Common.h"
 #include "ResourceManager.h"
@@ -19,12 +20,14 @@ private:
 public:
 	template <typename T>
 	T Get(std::string key, T defaultValue);
+    template <typename T>
+    std::vector<std::pair<std::string, T>> GetAll(std::string key);
 	template <typename T>
 	void Set(std::string key, T value);
 
 	void SaveToDisk();
 
-	private:
+private:
 	boost::filesystem::path m_Path;
 	boost::property_tree::ptree m_PTreeDefaults;
 	boost::property_tree::ptree m_PTreeOverrides;
@@ -37,6 +40,21 @@ T ConfigFile::Get(std::string key, T defaultValue)
 	return m_PTreeMerged.get<T>(key, defaultValue);
 }
 
+template <typename T>
+std::vector<std::pair<std::string, T>> ConfigFile::GetAll(std::string key)
+{
+    std::vector<std::pair<std::string, T>> out;
+    auto parent = m_PTreeMerged.find(key);
+    if (parent == m_PTreeMerged.not_found()) {
+        return out;
+    }
+    for (auto& child : parent->second) {
+        T value = boost::lexical_cast<T>(child.second.data());
+        out.push_back(std::make_pair(child.first, value));
+    }
+    return out;
+}
+
 template <typename T>
 void ConfigFile::Set(std::string key, T value)
 {

include/Engine/Core/EFileDropped.h

@@ -0,0 +1,16 @@
+#ifndef EFileDropped_h__
+#define EFileDropped_h__
+
+#include "EventBroker.h"
+
+namespace Events
+{
+
+struct FileDropped : Event
+{
+    std::string Path;
+};
+
+}
+
+#endif

include/Engine/Core/EKeyboardChar.h

@@ -0,0 +1,17 @@
+#ifndef Events_KeyboardChar_h__
+#define Events_KeyboardChar_h__
+
+#include "EventBroker.h"
+
+namespace Events
+{
+
+struct KeyboardChar : Event
+{
+    double Timestamp = 0.f;
+	unsigned int Char = 0;
+};
+
+}
+
+#endif

include/Engine/Core/EMouseScroll.h

@@ -0,0 +1,17 @@
+#ifndef Events_MouseScroll_h__
+#define Events_MouseScroll_h__
+
+#include "EventBroker.h"
+
+namespace Events
+{
+
+struct MouseScroll : Event
+{
+    double DeltaX;
+    double DeltaY;
+};
+
+}
+
+#endif

include/Engine/Core/EPlayerDamage.h

@@ -0,0 +1,20 @@
+#ifndef EPlayerDamage_h__
+#define EPlayerDamage_h__
+
+#include "EventBroker.h"
+#include "../Core/Entity.h"
+
+namespace Events
+{
+
+struct PlayerDamage : Event
+{
+    double DamageAmount;
+    EntityID PlayerDamagedID;
+    //optional TypeOfDamage
+    std::string TypeOfDamage;
+};
+
+}
+
+#endif

include/Engine/Core/EPlayerDeath.h

@@ -0,0 +1,20 @@
+#ifndef EPlayerDeath_h__
+#define EPlayerDeath_h__
+
+#include "EventBroker.h"
+#include "../Core/Entity.h"
+
+namespace Events
+{
+
+struct PlayerDeath : Event
+{
+    //KilledBy,KilledByWhat is optional for now. It might be used later in the playerlog-system
+    EntityID KilledBy;
+    EntityID PlayerID;
+    std::string KilledByWhat;
+};
+
+}
+
+#endif

include/Engine/Core/EPlayerHealthPickup.h

@@ -0,0 +1,18 @@
+#ifndef EPlayerHealthPickup_h__
+#define EPlayerHealthPickup_h__
+
+#include "EventBroker.h"
+#include "../Core/Entity.h"
+
+namespace Events
+{
+
+struct PlayerHealthPickup : Event
+{
+    double HealthAmount;
+    EntityID PlayerHealedID;
+};
+
+}
+
+#endif

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/EventBroker.h

@@ -13,6 +13,8 @@
 	relay = decltype(relay)(std::bind(handler, this, std::placeholders::_1)); \
 	m_EventBroker->Subscribe(relay);
 
+typedef unsigned int EventID;
+
 class EventBroker;
 
 class BaseEventRelay
@@ -31,6 +33,7 @@ public:
     virtual bool Receive(const std::shared_ptr<Event> event) = 0;
 
 protected:
+    EventID m_EventID;
     std::string m_ContextTypeName;
     std::string m_EventTypeName;
     EventBroker* m_Broker;
@@ -95,6 +98,7 @@ public:
 
 private:
     bool m_IsProcessing = false;
+    EventID m_NextEventID = 0;
 
     typedef std::string ContextTypeName_t; // typeid(ContextType).name()
     typedef std::string EventTypeName_t; // typeid(EventType).name()
@@ -103,14 +107,14 @@ private:
     typedef std::unordered_map<ContextTypeName_t, EventRelays_t> ContextRelays_t;
     ContextRelays_t m_ContextRelays;
     std::vector<BaseEventRelay*> m_RelaysToSubscribe;
-    std::vector<BaseEventRelay*> m_RelaysToUnsubscribe;
+    std::vector<std::tuple<EventID, ContextTypeName_t, EventTypeName_t>> m_RelaysToUnsubscribe;
 
     typedef std::list<std::pair<EventTypeName_t, std::shared_ptr<Event>>> EventQueue_t;
     std::shared_ptr<EventQueue_t> m_EventQueueRead;
     std::shared_ptr<EventQueue_t> m_EventQueueWrite;
 
     void subscribeImmediate(BaseEventRelay& relay);
-    void unsubscribeImmediate(BaseEventRelay& relay);
+    void unsubscribeImmediate(std::tuple<EventID, ContextTypeName_t, EventTypeName_t> identifier);
 };
 
 template <typename EventType>

include/Engine/Core/InputController.h

@@ -11,25 +11,22 @@ template <typename EventContext>
 class InputController
 {
 public:
-	InputController(std::shared_ptr<dd::EventBroker> eventBroker)
-		: EventBroker(eventBroker)
+	InputController(EventBroker* eventBroker)
+		: m_EventBroker(eventBroker)
 	{ Initialize(); }
 
 	virtual void Initialize()
 	{
 		EVENT_SUBSCRIBE_MEMBER(m_EInputCommand, &InputController::OnCommand);
-		EVENT_SUBSCRIBE_MEMBER(m_EMouseMove, &InputController::OnMouseMove);
 	}
 
-	virtual bool OnCommand(const Events::InputCommand &event) { return false; }
-	virtual bool OnMouseMove(const Events::MouseMove &event) { return false; }
+	virtual bool OnCommand(const Events::InputCommand& e) { return false; }
 
 protected:
-	std::shared_ptr<dd::EventBroker> EventBroker;
+	EventBroker* m_EventBroker;
 
 private:
 	EventRelay<EventContext, Events::InputCommand> m_EInputCommand;
-	EventRelay<EventContext, Events::MouseMove> m_EMouseMove;
 };
 
 #endif

include/Engine/Core/InputManager.h

@@ -8,12 +8,15 @@
 #include "EventBroker.h"
 #include "EKeyDown.h"
 #include "EKeyUp.h"
+#include "EKeyboardChar.h"
 #include "EMousePress.h"
 #include "EMouseRelease.h"
 #include "EMouseMove.h"
+#include "EMouseScroll.h"
 #include "ELockMouse.h"
 #include "EGamepadAxis.h"
 #include "EGamepadButton.h"
+#include "EFileDropped.h"
 
 class InputManager
 {
@@ -64,6 +67,13 @@ private:
 
 	void PublishGamepadAxisIfChanged(int gamepadID, Gamepad::Axis axis);
 	void PublishGamepadButtonIfChanged(int gamepadID, Gamepad::Button button);
+
+    static std::vector<unsigned int> GLFWCharCallbackQueue;
+    static void GLFWCharCallback(GLFWwindow* window, unsigned int c);
+    static std::vector<std::pair<double, double>> GLFWScrollCallbackQueue;
+    static void GLFWScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
+    static std::vector<std::string> GLFWDropCallbackQueue;
+    static void GLFWDropCallback(GLFWwindow* window, int count, const char* paths[]);
 };
 
 #endif

include/Engine/Core/MemoryPool.h

@@ -253,7 +253,7 @@ public:
 	}
 
 	//Postfix increment i.e. iter++. Prefer pre-increment (++iter) for efficiency.
-	MemoryPoolForwardIterator& operator++(int)
+	MemoryPoolForwardIterator operator++(int)
 	{
 		MemoryPoolForwardIterator<T> copyIter(*this);
 		operator++();

include/Engine/Core/OctTree.h

@@ -0,0 +1,104 @@
+#ifndef OctTree_h__
+#define OctTree_h__
+
+#include "Core/AABB.h"
+
+class Ray;
+
+class OctTree
+{
+public:
+    struct Output
+    {
+        float CollideDistance;
+    };
+
+    OctTree();
+    ~OctTree();
+    //For the root OctTree, [octTreeBounds] should be a box containing the entire level.
+    OctTree(const AABB& octTreeBounds, int subDivisions);
+
+    //We cannot copy the OctTree as of now, because of the recursive dynamic allocation.
+    //Define these if the OctTree suddenly needs to be copied, think of the children OctChild* ptrs. 
+    OctTree(const OctTree& other) = delete;
+    OctTree(const OctTree&& other) = delete;
+    OctTree& operator= (const OctTree& other) = delete;
+    //Add a dynamic object (one that moves around) into the tree.
+    void AddDynamicObject(const AABB& box);
+    //Add a static object (that does not move) into the tree.
+    void AddStaticObject(const AABB& box);
+    //Get the boxes that are in the same area as the input [box], the boxes are put in [outBoxes].
+    void BoxesInSameRegion(const AABB& box, std::vector<AABB>& outBoxes);
+    //Empty the tree of all objects, static and dynamic.
+    void ClearObjects();
+    //Empty the tree of all dynamic objects. Static objects remain in the tree.
+    void ClearDynamicObjects();
+
+    //Returns true if the ray collides with something in the tree. Result is written to [data].
+    bool RayCollides(const Ray& ray, Output& data);
+    //Returns true if the box collides with something in the tree. 
+    //On collision with a box, that box is written to [outBoxIntersected].
+    //Note: More efficient than calling BoxesInSameRegion from outside and testing there.
+    bool BoxCollides(const AABB& boxToTest, AABB& outBoxIntersected);
+
+private:
+    struct OctChild;    //Fwd declaration;
+    struct ContainedObject
+    {
+        ContainedObject()
+            : Box(AABB())
+            , Checked(false)
+        {}
+        ContainedObject(AABB box)
+            : Box(box)
+            , Checked(false)
+        {}
+        AABB Box;
+        bool Checked;
+    };
+    OctChild* m_Root;
+    std::vector<ContainedObject> m_StaticObjects;
+    std::vector<ContainedObject> m_DynamicObjects;
+
+    bool m_UpdatedOnce;
+    unsigned int m_BoxID;
+    glm::vec3 m_PrevPos;
+    glm::quat m_PrevOri;
+
+    void falsifyObjectChecks();
+
+    struct OctChild
+    {
+        ~OctChild();
+        OctChild(const AABB& octTreeBounds, 
+            int subDivisions, 
+            std::vector<OctTree::ContainedObject>& staticObjects, 
+            std::vector<OctTree::ContainedObject>& dynamicObjects);
+        OctChild(const OctChild& other) = delete;
+        OctChild(const OctChild&& other) = delete;
+        OctChild& operator= (const OctChild& other) = delete;
+        void AddDynamicObject(const AABB& box);
+        void AddStaticObject(const AABB& box);
+        void BoxesInSameRegion(const AABB& box, std::vector<AABB>& outBoxes) const;
+        void ClearObjects();
+        void ClearDynamicObjects();
+        bool RayCollides(const Ray& ray, Output& data) const;
+        bool BoxCollides(const AABB& boxToTest, AABB& outBoxIntersected) const;
+
+        OctChild* m_Children[8];
+        //Indices into the lists in OctTree.
+        std::vector<int> m_StaticObjIndices;
+        std::vector<int> m_DynamicObjIndices;
+        AABB m_Box;
+        //Reference to the lists in OctTree.
+        std::vector<OctTree::ContainedObject>& m_StaticObjectsRef;
+        std::vector<OctTree::ContainedObject>& m_DynamicObjectsRef;
+
+        inline bool hasChildren() const;
+        int childIndexContainingPoint(const glm::vec3& point) const;
+        std::vector<int> childIndicesContainingBox(const AABB& box) const;
+    };
+};
+
+
+#endif

include/Engine/Core/Ray.h

@@ -0,0 +1,31 @@
+#ifndef Ray_h__
+#define Ray_h__
+
+#include "../GLM.h"
+#include "Common.h"
+
+class Ray
+{
+public:
+    Ray(const glm::vec3& origin, const glm::vec3& dir)
+        : m_Origin(origin)
+        , m_Direction(glm::normalize(dir))
+    {
+        DEBUG_IF(true) {
+            if (glm::any(glm::isnan(m_Direction))) {
+                LOG_WARNING("Ray Direction was set to the zero-vector, expect unknown side effects and/or crashes.");
+            }
+        }
+    }
+    const glm::vec3& Origin() const { return m_Origin; }
+    const glm::vec3& Direction() const { return m_Direction; }
+    //Sets the ray origin at parameter.
+    void SetOrigin(const glm::vec3& origin) { m_Origin = origin; }
+    //Normalizes the parameter and sets direction to it.
+    void SetDirection(const glm::vec3& direction) { m_Direction = glm::normalize(direction); }
+private:
+    glm::vec3 m_Origin;
+    glm::vec3 m_Direction;
+};
+
+#endif // Ray_h__

include/Engine/Core/System.h

@@ -9,17 +9,42 @@ class System
 {
     friend class SystemPipeline;
 
-public:
-    System(EventBroker* eventBroker, std::string componentType)
-        : m_EventBroker(eventBroker)
-        , m_ComponentType(componentType)
-    { }
-
-    virtual void Update(World* world, ComponentWrapper& component, double dt) = 0;
-
 protected:
-    std::string m_ComponentType;
+    System(EventBroker* eventBroker)
+        : m_EventBroker(eventBroker)
+    { }
+    virtual ~System() = default;
+
     EventBroker* m_EventBroker;
 };
 
+class PureSystem : public System
+{
+    friend class SystemPipeline;
+
+protected:
+    PureSystem(EventBroker* eventBroker, std::string componentType)
+        : System(eventBroker)
+        , m_ComponentType(componentType)
+    { }
+    virtual ~PureSystem() = default;
+
+    const std::string m_ComponentType;
+
+    virtual void UpdateComponent(World* world, ComponentWrapper& component, double dt) = 0;
+};
+
+class ImpureSystem : public System
+{
+    friend class SystemPipeline;
+
+protected:
+    ImpureSystem(EventBroker* eventBroker)
+        : System(eventBroker)
+    { }
+    virtual ~ImpureSystem() = default;
+
+    virtual void Update(World* world, double dt) = 0;
+};
+
 #endif

include/Engine/Core/SystemPipeline.h

@@ -14,45 +14,76 @@ public:
     { }
     ~SystemPipeline()
     {
-        for (auto& pair : m_Systems) {
-            for (auto& system : pair.second) {
-                delete system;
+        for (UnorderedSystems& group : m_OrderedSystemGroups) {
+            for (auto& pair : group.Systems) {
+                delete pair.second;
             }
         }
     }
 
     template <typename T, typename... Arguments>
-    void AddSystem(Arguments... args)
+    //All systems with orderlevel 0 will be updated first, then 1, 2, etc.
+    void AddSystem(int updateOrderLevel, Arguments... args)
     {
+        if (updateOrderLevel + 1 > m_OrderedSystemGroups.size()) {
+            m_OrderedSystemGroups.resize(updateOrderLevel + 1);
+        }
+        UnorderedSystems& group = m_OrderedSystemGroups[updateOrderLevel];
         System* system = new T(m_EventBroker, args...);
-        if (!system->m_ComponentType.empty()) {
-            m_Systems[system->m_ComponentType].push_back(system);
-        } else {
-            LOG_ERROR("Failed to add system \"%s\": Missing component type!", typeid(T).name());
-            delete system;
+        group.Systems[typeid(T).name()] = system;
+
+        if (std::is_base_of<PureSystem, T>::value) {
+            PureSystem* pureSystem = static_cast<PureSystem*>(system);
+            if (!pureSystem->m_ComponentType.empty()) {
+                group.PureSystems[pureSystem->m_ComponentType].push_back(pureSystem);
+            } else {
+                LOG_ERROR("Failed to add pure system \"%s\": Missing component type!", typeid(T).name());
+            }
+        }
+
+        if (std::is_base_of<ImpureSystem, T>::value) {
+            ImpureSystem* impureSystem = static_cast<ImpureSystem*>(system);
+            group.ImpureSystems.push_back(impureSystem);
         }
     }
 
     void Update(World* world, double dt)
     {
-        for (auto& pair : m_Systems) {
-            const std::string& componentName = pair.first;
-            auto& systems = pair.second;
-            const ComponentPool* pool = world->GetComponents(componentName);
-            if (pool == nullptr) {
-                continue;
+        for (UnorderedSystems& group : m_OrderedSystemGroups) {
+            // Process events
+            for (auto& pair : group.Systems) {
+                m_EventBroker->Process(pair.first);
             }
-            for (auto& component : *pool) {
-                for (auto& system : systems) {
-                    system->Update(world, component, dt);
+
+            // Update
+            for (auto& pair : group.PureSystems) {
+                const std::string& componentName = pair.first;
+                auto& systems = pair.second;
+                const ComponentPool* pool = world->GetComponents(componentName);
+                if (pool == nullptr) {
+                    continue;
                 }
+                for (auto& component : *pool) {
+                    for (auto& system : systems) {
+                        system->UpdateComponent(world, component, dt);
+                    }
+                }
+            }
+            for (auto& system : group.ImpureSystems) {
+                system->Update(world, dt);
             }
         }
     }
 
 private:
     EventBroker* m_EventBroker;
-    std::unordered_map<std::string, std::vector<System*>> m_Systems;
+    struct UnorderedSystems
+    {
+        std::map<std::string, System*> Systems;
+        std::map<std::string, std::vector<PureSystem*>> PureSystems;
+        std::vector<ImpureSystem*> ImpureSystems;
+    };
+    std::vector<UnorderedSystems> m_OrderedSystemGroups;
 };
 
 #endif

include/Engine/Core/Util/IfDebug.h

@@ -0,0 +1,12 @@
+// Example:
+// DEBUG_IF(condition) {
+//    // This code is executed only in debug mode and if condition is true.
+// }
+// NOTE: condition statement is not executed at all in release mode.
+#ifndef DEBUG_IF
+#ifndef DEBUG
+#define DEBUG_IF(c) if(c)
+#else
+#define DEBUG_IF(c) if(false)
+#endif
+#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

@@ -14,24 +14,43 @@ public:
 
     // Create empty entity
     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) const;
     // Get a component of an entity
     ComponentWrapper GetComponent(EntityID entity, std::string componentType);
+    // Delete a component off an entity
+    void DeleteComponent(EntityID entity, std::string componentType);
     // Get all components of the specified type
     const ComponentPool* GetComponents(std::string componentType);
     // Get entity parent
     EntityID GetParent(EntityID entity);
+    // Change the parent of an entity
+    void SetParent(EntityID entity, EntityID parent);
+    // Get all component pools
+    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

@@ -0,0 +1,95 @@
+#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"
+#include "../Core/EMouseMove.h"
+#include "../Core/ConfigFile.h"
+#include "../Input/EInputCommand.h"
+#include "../Rendering/IRenderer.h"
+#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
+{
+public:
+    EditorSystem(EventBroker* eventBroker, IRenderer* renderer);
+
+    virtual void Update(World* world, double dt) override;
+
+private:
+    IRenderer* m_Renderer;
+    World* m_World = nullptr;
+
+    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
+    {
+        None,
+        Translate,
+        Rotate,
+        Scale
+    } m_WidgetMode = WidgetMode::None;
+
+    enum class WidgetSpace
+    {
+        Local,
+        Global
+    } m_WidgetSpace = WidgetSpace::Global;
+
+    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 = 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;
+    bool OnMouseRelease(const Events::MouseRelease& e);
+    EventRelay<EditorSystem, Events::MousePress> m_EMousePress;
+    bool OnMousePress(const Events::MousePress& e);
+    EventRelay<EditorSystem, Events::MouseMove> m_EMouseMove;
+    bool OnMouseMove(const Events::MouseMove& e);
+    EventRelay<EditorSystem, Events::Picking> m_EPicking;
+    bool OnPicking(const Events::Picking& e);
+    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/Input/EBindGamepadAxis.h

@@ -1,24 +0,0 @@
-#ifndef Events_BindGamepadAxis_h__
-#define Events_BindGamepadAxis_h__
-
-#include "Core/EventBroker.h"
-#include "Core/EGamepadAxis.h"
-
-namespace Events
-{
-
-/** Called to bind a gamepad axis to an input command. */
-struct BindGamepadAxis : Event
-{
-	/** The axis to bind. */
-	Gamepad::Axis Axis;
-	/** The command to send. */
-	std::string Command;
-	/** The value to send for positive stimulation.
-	
-		Multiplied by the 0-1 clamped value of the axis.
-	*/
-	float Value;
-};
-
-}

include/Engine/Input/EBindGamepadButton.h

@@ -1,26 +0,0 @@
-#ifndef Events_BindGamepadButton_h__
-#define Events_BindGamepadButton_h__
-
-#include "Core/EventBroker.h"
-#include "Core/EGamepadButton.h"
-
-namespace Events
-{
-
-/** Called to bind a gamepad button to an input command. */
-struct BindGamepadButton : Event
-{
-	/** The gamepad button to bind. */
-	Gamepad::Button Button;
-	/** The command to send. */
-	std::string Command;
-	/** The value to send for positive stimulation.
-
-		Multiplied by the 0-1 clamped value of the button.
-	*/
-	float Value;
-};
-
-}
-
-#endif

include/Engine/Input/EBindKey.h

@@ -1,25 +0,0 @@
-#ifndef Events_BindKey_h__
-#define Events_BindKey_h__
-
-#include "Core/EventBroker.h"
-
-namespace Events
-{
-
-/** Called to bind a keyboard key to an input command. */
-struct BindKey : Event
-{
-	/** The GLFW key code to bind. */
-	int KeyCode;
-	/** The command to send. */
-	std::string Command;
-	/** The value to send for positive stimulation.
-
-		Multiplied by the 0-1 clamped value of the key.
-	*/
-	float Value;
-};
-
-}
-
-#endif

include/Engine/Input/EBindMouseButton.h

@@ -1,25 +0,0 @@
-#ifndef Events_BindMouseButton_h__
-#define Events_BindMouseButton_h__
-
-#include "Core/EventBroker.h"
-
-namespace Events
-{
-
-/** Called to bind a mouse button to an input command. */
-struct BindMouseButton : Event
-{
-	/** The GLFW mouse button code to bind. */
-	int Button;
-	/** The command to send. */
-	std::string Command;
-	/** The value to send for positive stimulation.
-
-		Multiplied by the 0-1 clamped value of the button.
-	*/
-	float Value;
-};
-
-}
-
-#endif

include/Engine/Input/EBindOrigin.h

@@ -0,0 +1,22 @@
+#ifndef Events_BindOrigin_h__
+#define Events_BindOrigin_h__
+
+#include "Core/EventBroker.h"
+
+namespace Events
+{
+
+/** Called to bind an input origin to an input command. */
+struct BindOrigin : Event
+{
+	/** The input origin to bind. */
+	std::string Origin;
+	/** The command to send. */
+	std::string Command;
+	/** The value to send for positive stimulation. */
+	float Value = 1.f;
+};
+
+}
+
+#endif

include/Engine/Input/EInputCommand.h

@@ -13,7 +13,7 @@ struct InputCommand : Event
 	/** The command that was sent. */
 	std::string Command;
 	/** The value of the command. */
-	float Value;
+	float Value = 0;
 };
 
 }

include/Engine/Input/FirstPersonInputController.h

@@ -0,0 +1,70 @@
+#ifndef FirstPersonInputController_h__
+#define FirstPersonInputController_h__
+
+#include "../GLM.h"
+#include "../Core/InputController.h"
+#include "../Core/ELockMouse.h"
+
+template <typename EventContext>
+class FirstPersonInputController : public InputController<EventContext>
+{
+public:
+    FirstPersonInputController(EventBroker* eventBroker, unsigned int playerID)
+        : InputController(eventBroker)
+        , m_PlayerID(playerID)
+    {
+        EVENT_SUBSCRIBE_MEMBER(m_ELockMouse, &FirstPersonInputController::OnLockMouse);
+        EVENT_SUBSCRIBE_MEMBER(m_EUnlockMouse, &FirstPersonInputController::OnUnlockMouse);
+    }
+
+    const glm::quat Orientation() const { return m_Orientation; }
+    
+    void LockMouse()
+    {
+        Events::LockMouse e;
+        m_EventBroker->Publish(e);
+        m_MouseLocked = true;
+    }
+
+    void UnlockMouse()
+    {
+        Events::UnlockMouse e;
+        m_EventBroker->Publish(e);
+        m_MouseLocked = false;
+    }
+
+    virtual bool OnCommand(const Events::InputCommand& e) override
+    {
+        if (m_PlayerID != e.PlayerID) {
+            return false;
+        }
+
+        if (m_MouseLocked) {
+            if (e.Command == "Pitch") {
+                float val = glm::radians(e.Value);
+                m_Orientation = m_Orientation * glm::angleAxis<float>(-val, glm::vec3(1, 0, 0));
+                return true;
+            }
+
+            if (e.Command == "Yaw") {
+                float val = glm::radians(e.Value);
+                m_Orientation = glm::angleAxis<float>(-val, glm::vec3(0, 1, 0)) * m_Orientation;
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+protected:
+    const unsigned int m_PlayerID;
+    glm::quat m_Orientation;
+    bool m_MouseLocked = false;
+    
+    EventRelay<EventContext, Events::LockMouse> m_ELockMouse;
+    bool OnLockMouse(const Events::LockMouse& e) { m_MouseLocked = true; return true; }
+    EventRelay<EventContext, Events::UnlockMouse> m_EUnlockMouse;
+    bool OnUnlockMouse(const Events::UnlockMouse& e) { m_MouseLocked = false; return true; }
+};
+
+#endif

include/Engine/Input/InputHandler.h

@@ -0,0 +1,25 @@
+#ifndef InputHandler_h__
+#define InputHandler_h__
+
+#include "../Common.h"
+#include "../Core/EventBroker.h"
+#include "InputProxy.h"
+
+class InputHandler
+{
+public:
+    InputHandler(EventBroker* eventBroker, InputProxy* inputProxy)
+        : m_EventBroker(eventBroker)
+        , m_InputProxy(inputProxy)
+    { }
+
+    virtual bool BindOrigin(std::string origin, std::string command, float value) = 0;
+    virtual void Update(double dt) { }
+    virtual float GetCommandValue(std::string command) = 0;
+
+protected:
+    EventBroker* m_EventBroker;
+    InputProxy* m_InputProxy;
+};
+
+#endif

include/Engine/Input/InputProxy.h

@@ -0,0 +1,46 @@
+#ifndef InputProxy_h__
+#define InputProxy_h__
+
+#include "../Common.h"
+#include "../Core/ResourceManager.h"
+#include "../Core/ConfigFile.h"
+#include "EInputCommand.h"
+#include "EBindOrigin.h"
+
+class InputHandler;
+
+class InputProxy
+{
+public:
+    InputProxy(EventBroker* eventBroker);
+    ~InputProxy();
+    
+    void LoadBindings(std::string file);
+	void Update(double dt);
+    void Process();
+    template <typename T>
+    void AddHandler();
+    void Publish(const Events::InputCommand& e);
+
+protected:
+    EventBroker* m_EventBroker;
+    std::vector<InputHandler*> m_Handlers;
+    std::map<std::string, std::set<InputHandler*>> m_CommandHandlers;
+    
+    // Represents every unique command (has of PlayerID & Command) and all values reported for that command this frame
+    std::map<std::pair<unsigned int, std::string>, std::vector<float>> m_CommandQueue;
+
+    std::map<std::string, float> m_CurrentCommandValues;
+    std::map<std::string, float> m_LastCommandValues;
+
+	EventRelay<InputProxy, Events::BindOrigin> m_EBindOrigin;
+	bool OnBindOrigin(const Events::BindOrigin& e);
+};
+
+template <typename T>
+void InputProxy::AddHandler()
+{
+    m_Handlers.push_back(new T(m_EventBroker, this));
+}
+
+#endif

include/Engine/Input/InputSystem.h

@@ -1,78 +0,0 @@
-#ifndef InputSystem_h__
-#define InputSystem_h__
-
-#include <array>
-#include <unordered_map>
-
-#include "Core/System.h"
-#include "Core/EKeyUp.h"
-#include "Core/EKeyDown.h"
-#include "Core/EMousePress.h"
-#include "Core/EMouseRelease.h"
-#include "Core/EGamepadAxis.h"
-#include "Core/EGamepadButton.h"
-#include "Core/Util/EnumClassHash.h"
-#include "EBindKey.h"
-#include "EBindMouseButton.h"
-#include "EBindGamepadAxis.h"
-#include "EBindGamepadButton.h"
-#include "EInputCommand.h"
-
-namespace Systems
-{
-
-class InputSystem : public System
-{
-public:
-	InputSystem(World* world, std::shared_ptr<dd::EventBroker> eventBroker)
-		: System(world, eventBroker)
-	{ }
-
-	void RegisterComponents(ComponentFactory* cf) override;
-	void Initialize() override;
-
-	void Update(double dt) override;
-
-private:
-	std::unordered_map<std::string, std::unordered_map<int, float>> m_CommandKeyboardValues; // command string -> keyboard key value for command
-	std::unordered_map<std::string, std::unordered_map<int, float>> m_CommandMouseButtonValues; // command string -> mouse button value for command
-	std::unordered_map<std::string, std::unordered_map<Gamepad::Axis, float, EnumClassHash>> m_CommandGamepadAxisValues; // command string -> gamepad axis value for command
-	std::unordered_map<std::string, std::unordered_map<Gamepad::Button, float, EnumClassHash>> m_CommandGamepadButtonValues; // command string -> gamepad button value for command
-	// Input binding tables
-	std::unordered_multimap<int, std::tuple<std::string, float>> m_KeyBindings; // GLFW_KEY... -> command string & value
-	std::unordered_multimap<int, std::tuple<std::string, float>> m_MouseButtonBindings; // GLFW_MOUSE_BUTTON... -> command string
-	std::unordered_multimap<Gamepad::Axis, std::tuple<std::string, float>, EnumClassHash> m_GamepadAxisBindings; // Gamepad::Axis -> command string & value
-	std::unordered_multimap<Gamepad::Button, std::tuple<std::string, float>, EnumClassHash> m_GamepadButtonBindings; // Gamepad::Button -> command string
-
-	// Input events
-	EventRelay<InputSystem, Events::KeyDown> m_EKeyDown;
-	bool OnKeyDown(const Events::KeyDown &event);
-	EventRelay<InputSystem, Events::KeyUp> m_EKeyUp;
-	bool OnKeyUp(const Events::KeyUp &event);
-	EventRelay<InputSystem, Events::MousePress> m_EMousePress;
-	bool OnMousePress(const Events::MousePress &event);
-	EventRelay<InputSystem, Events::MouseRelease> m_EMouseRelease;
-	bool OnMouseRelease(const Events::MouseRelease &event);
-	EventRelay<InputSystem, Events::GamepadAxis> m_EGamepadAxis;
-	bool OnGamepadAxis(const Events::GamepadAxis &event);
-	EventRelay<InputSystem, Events::GamepadButtonDown> m_EGamepadButtonDown;
-	bool OnGamepadButtonDown(const Events::GamepadButtonDown &event);
-	EventRelay<InputSystem, Events::GamepadButtonUp> m_EGamepadButtonUp;
-	bool OnGamepadButtonUp(const Events::GamepadButtonUp &event);
-	// Input binding events
-	EventRelay<InputSystem, Events::BindKey> m_EBindKey;
-	bool OnBindKey(const Events::BindKey &event);
-	EventRelay<InputSystem, Events::BindMouseButton> m_EBindMouseButton;
-	bool OnBindMouseButton(const Events::BindMouseButton &event);
-	EventRelay<InputSystem, Events::BindGamepadAxis> m_EBindGamepadAxis;
-	bool OnBindGamepadAxis(const Events::BindGamepadAxis &event);
-	EventRelay<InputSystem, Events::BindGamepadButton> m_EBindGamepadButton;
-	bool OnBindGamepadButton(const Events::BindGamepadButton &event);
-
-	float GetCommandTotalValue(std::string command);
-	void PublishCommand(int playerID, std::string command, float value);
-};
-
-}
-
-#endif

include/Engine/Input/KeyboardInputHandler.h

@@ -0,0 +1,28 @@
+#ifndef KeyboardInputHandler_h__
+#define KeyboardInputHandler_h__
+
+#include <GLFW/glfw3.h>
+#include "InputHandler.h"
+#include "Core/EKeyDown.h"
+#include "Core/EKeyUp.h"
+
+class KeyboardInputHandler : public InputHandler
+{
+public:
+    KeyboardInputHandler(EventBroker* eventBroker, InputProxy* inputProxy);
+
+    bool BindOrigin(std::string origin, std::string command, float value) override;
+    virtual float GetCommandValue(std::string command) override;
+
+private:
+    std::unordered_map<std::string, int> m_OriginKeyCodes;
+	std::unordered_map<int, std::tuple<std::string, float>> m_KeyBindings; // GLFW_KEY... -> command string & value
+    std::unordered_map<std::string, float> m_CommandValues;
+
+	EventRelay<InputHandler, Events::KeyDown> m_EKeyDown;
+    bool OnKeyDown(const Events::KeyDown& e);
+	EventRelay<InputHandler, Events::KeyUp> m_EKeyUp;
+	bool OnKeyUp(const Events::KeyUp& e);
+};
+
+#endif

include/Engine/Input/MouseInputHandler.h

@@ -0,0 +1,38 @@
+#ifndef MouseInputHandler_h__
+#define MouseInputHandler_h__
+
+#include <GLFW/glfw3.h>
+#include "InputHandler.h"
+#include "Core/EMousePress.h"
+#include "Core/EMouseRelease.h"
+#include "Core/EMouseMove.h"
+
+class MouseInputHandler : public InputHandler
+{
+public:
+    MouseInputHandler(EventBroker* eventBroker, InputProxy* inputProxy);
+
+    bool BindOrigin(std::string origin, std::string command, float value) override;
+    virtual float GetCommandValue(std::string command) override;
+
+private:
+    std::unordered_map<std::string, int> m_OriginCodes;
+    std::unordered_map<std::string, char> m_OriginAxes;
+	std::unordered_map<int, std::tuple<std::string, float>> m_Bindings; // GLFW_MOUSE_BUTTON... -> command string & value
+	std::unordered_map<char, std::tuple<std::string, float>> m_Axes; // Axis -> command string & value
+    std::unordered_map<std::string, float> m_CommandValues;
+    std::unordered_map<std::string, float> m_ContinuousCommandValues;
+
+	EventRelay<InputHandler, Events::MousePress> m_EMousePress;
+    bool OnMousePress(const Events::MousePress& e);
+	EventRelay<InputHandler, Events::MouseRelease> m_EMouseRelease;
+	bool OnMouseRelease(const Events::MouseRelease& e);
+	EventRelay<InputHandler, Events::MouseMove> m_EMouseMove;
+	bool OnMouseMove(const Events::MouseMove& e);
+
+    bool hasOrigin(std::string origin);
+
+
+};
+
+#endif

include/Engine/Network/Client.h

@@ -1,14 +1,84 @@
 #ifndef Client_h__
 #define Client_h__
 
-#include <boost\asio.hpp>
+#include <string>
+#include <ctime>
 
-class Client
+#include <glm/common.hpp>
+#include <boost/asio.hpp>
+
+#include "Network/Network.h"
+#include "Network/MessageType.h"
+#include "Network/PlayerDefinition.h"
+#include "Network/SnapshotDefinitions.h"
+#include "Core/World.h"
+#include "Core/EventBroker.h"
+#include "Core/ConfigFile.h"
+#include "Input/EInputCommand.h"
+
+class Client : public Network
 {
-	Client();
-	~Client();
+public:
+    Client(ConfigFile* config);
+    ~Client();
+    void Start(World* world, EventBroker* eventBroker) override;
+    void Update() override;
+    void Close();
+private:
+    // Assio UDP logic
+    boost::asio::ip::udp::endpoint m_ReceiverEndpoint;
+    boost::asio::io_service m_IOService;
+    boost::asio::ip::udp::socket m_Socket;
 
+    // Sending message to server logic
+    int bytesRead = -1;
+    char readBuf[1024] = { 0 };
+    int snapshotInterval = 33;
+    std::clock_t previousSnapshotMessage = std::clock();
 
+    // Packet loss logic
+    unsigned int m_PacketID = 0;
+    unsigned int m_PreviousPacketID = 0;
+    unsigned int m_SendPacketID = 0;
+
+    // Game logic
+    World* m_World;
+    std::string m_PlayerName;
+    int m_PlayerID = -1;
+
+    // Network logic
+    PlayerDefinition m_PlayerDefinitions[MAXCONNECTIONS];
+    SnapshotDefinitions m_NextSnapshot;
+    bool m_ThreadIsRunning = true;
+    double m_DurationOfPingTime;
+    std::clock_t m_StartPingTime;
+    // Use to check if we should send disconnect message
+    // if game is turned of by closing window.
+    bool m_WasStarted = false;
+
+    // Private member functions
+    void readFromServer();
+    void sendSnapshotToServer();
+    int receive(char* data, size_t length);
+    void send(Packet& packet);
+    void connect();
+    void disconnect();
+    void ping();
+    void moveMessageHead(char*& data, size_t& length, size_t stepSize);
+    void parseMessageType(Packet& packet);
+    void parseEventMessage(Packet& packet);
+    void parseConnect(Packet& packet);
+    void parsePing();
+    void parseServerPing();
+    void parseSnapshot(Packet& packet);
+    void identifyPacketLoss();
+    bool isConnected();
+    EntityID createPlayer();
+
+    // Events
+    EventBroker* m_EventBroker;
+    EventRelay<Client, Events::InputCommand> m_EInputCommand;
+    bool OnInputCommand(const Events::InputCommand &e);
 };
 
 #endif

include/Engine/Network/MessageType.h

@@ -0,0 +1,17 @@
+#ifndef MessageType_h__
+#define MessageType_h__
+
+// Message types used by both server and client.
+// Used to determine what type of message was sent.
+enum class MessageType
+{
+	Connect,
+	Disconnect,
+	ClientPing,
+	ServerPing,
+	Message,
+	Snapshot,
+	Event,
+};
+
+#endif

include/Engine/Network/Network.h

@@ -0,0 +1,19 @@
+#ifndef Network_h__
+#define Network_h__
+
+#include "Core/World.h"
+#include "Core/EventBroker.h"
+#include "Network/Packet.h"
+
+#define MAXCONNECTIONS 8
+#define INPUTSIZE 128
+
+class Network
+{
+public:
+    virtual ~Network() { };
+    virtual void Start(World* m_world, EventBroker *eventBroker) = 0;
+    virtual void Update() = 0;
+};
+
+#endif

include/Engine/Network/Packet.h

@@ -0,0 +1,61 @@
+#ifndef Packet_h__
+#define Packet_h__
+
+#include <string>
+#include "Network/MessageType.h"
+#include "Core/Util/Logging.h"
+
+// Defines the 
+class Packet
+{
+public:
+    // arg1: Type of message (Connect, Disconnect...)
+    // arg2: PacketID for identifying packet loss.
+    Packet(MessageType type, unsigned int& packetID);
+    // Used to create packet from already existing data buffer.
+    Packet(char* data, const int sizeOfPacket);
+    
+    ~Packet();
+    // Add primitive types like int, float, char...
+    template<typename T>
+    void WritePrimitive(T val)
+    {
+        // Check if we are trying to add more than the package can fit.
+        if (m_MaxPacketSize < m_Offset + sizeof(T)) {
+            LOG_WARNING("Packet AddPrimitive(): You are trying to add more than we have allocated for!");
+        }
+        memcpy(m_Data + m_Offset, &val, sizeof(T));
+        m_Offset += sizeof(T);
+    }
+    // Pops the first element as if it was a primitive.
+    template<typename T>
+    T ReadPrimitive()
+    {
+        if (m_Offset < m_ReturnDataOffset + sizeof(T)) {
+            LOG_WARNING("Packet PopFrontPrimitive(): You are trying to remove more than what exists in this packet!");
+            return -1;
+        }
+        T returnValue;
+        memcpy(&returnValue, m_Data + m_ReturnDataOffset, sizeof(T));
+        m_ReturnDataOffset += sizeof(T);
+        return returnValue;
+    }
+    // Add a string to the message
+    void WriteString(std::string str);
+    // Add data to the message
+    void WriteData(char* data, int sizeOfData);
+    // Pops the first element as if it was a string.
+    std::string ReadString();
+    char* ReadData(int SizeOfData);
+
+    int Size() { return m_Offset; };
+    char* Data() { return m_Data; };
+
+private:
+    char* m_Data;
+    unsigned int m_ReturnDataOffset = 0;
+    int m_Offset = 0;
+    unsigned int m_MaxPacketSize = 128;
+};
+
+#endif

include/Engine/Network/PlayerDefinition.h

@@ -0,0 +1,11 @@
+#ifndef PlayerDefinition_h__
+#define PlayerDefinition_h__
+#include <string>
+
+struct PlayerDefinition {
+    int EntityID = -1;
+    std::string Name = "";
+    boost::asio::ip::udp::endpoint Endpoint;
+};
+
+#endif

include/Engine/Network/Server.h

@@ -1,12 +1,85 @@
 #ifndef Server_h__
 #define Server_h__
 
-#include <boost\asio.hpp>
+#include <string>
+#include <ctime>
 
-class Server
+#include <glm/common.hpp>
+#include <boost/asio/ip/udp.hpp>
+
+#include "Network/MessageType.h"
+#include "Network/PlayerDefinition.h"
+#include "Core/World.h"
+#include "Core/EventBroker.h"
+#include "Network/Network.h"
+
+class Server : public Network
 {
-	Server();
-	~Server();
+public:
+    Server();
+    ~Server();
+    void Start(World* m_world, EventBroker *eventBroker) override;
+    void Update() override;
+    void Close();
+
+private:
+    // UDP logic
+    boost::asio::ip::udp::endpoint m_ReceiverEndpoint;
+    boost::asio::io_service m_IOService;
+    boost::asio::ip::udp::socket m_Socket;
+    PlayerDefinition m_PlayerDefinitions[MAXCONNECTIONS];
+
+    // Sending messages to client logic
+    char readBuffer[1024] = { 0 };
+    int bytesRead = 0;
+    // time for previouse message
+    std::clock_t previousePingMessage = std::clock();
+    std::clock_t previousSnapshotMessage = std::clock();
+    std::clock_t timOutTimer = std::clock();
+    // How often we send messages (milliseconds)
+    int intervalMs = 1000;
+    int snapshotInterval = 50;
+    int checkTimeOutInterval = 100;
+
+    //Timers
+    std::clock_t m_StartPingTime;
+    std::clock_t m_StopTimes[8];
+
+    // Game logic
+    World* m_World;
+    EventBroker* m_EventBroker;
+    // vec.size() = ammount of players to create, stores playerID's
+    std::vector<unsigned int> m_PlayersToCreate;
+    
+    // Packet loss logic
+    unsigned int m_PacketID;
+    unsigned int m_PreviousPacketID;
+    unsigned int m_SendPacketID;
+    
+    // Close logic
+    bool m_ThreadIsRunning = true;
+
+    // Private member functions
+    int  receive(char* data, size_t length);
+    void readFromClients();
+    void send(Packet& packet, int playerID);
+    void send(Packet& packet);
+    void moveMessageHead(char*& data, size_t& length, size_t stepSize);
+    void broadcast(std::string message);
+    void broadcast(Packet& packet);
+    void sendSnapshot();
+    void sendPing();
+    void checkForTimeOuts();
+    void disconnect(int i);
+    void parseMessageType(Packet& packet);
+    void parseEvent(Packet& packet);
+    void parseConnect(Packet& packet);
+    void parseDisconnect();
+    void parseClientPing();
+    void parseServerPing();
+    void parseSnapshot(Packet& packet);
+    void identifyPacketLoss();
+    EntityID createPlayer();
 };
 
 #endif

include/Engine/Network/SnapshotDefinitions.h

@@ -0,0 +1,12 @@
+#ifndef SnapshotDefinitions_h__
+#define SnapshotDefinitions_h__
+
+struct SnapshotDefinitions
+{
+	// "+Forward" is 8 characters * sizeof(char) = 8
+	std::string InputForward;
+	// "+Right" is 6 characters * sizeof(char) = 6
+    std::string InputRight;
+};
+
+#endif

include/Engine/Rendering/DebugCameraInputController.h

@@ -0,0 +1,63 @@
+#include <imgui/imgui.h>
+#include "../Input/FirstPersonInputController.h"
+
+template <typename EventContext>
+class DebugCameraInputController : public FirstPersonInputController<EventContext>
+{
+public:
+    DebugCameraInputController(EventBroker* eventBroker, unsigned int playerID)
+        : FirstPersonInputController(eventBroker, playerID)
+    { }
+
+    const glm::vec3 Position() const { return m_Position; }
+    void SetBaseSpeed(float speed) { m_BaseSpeed = speed; }
+
+    virtual bool OnCommand(const Events::InputCommand& e) override
+    {
+        ImGuiIO& io = ImGui::GetIO();
+
+        if (e.Command == "PrimaryFire") {
+            if (e.Value > 0) {
+                if (!io.WantCaptureMouse) {
+                    LockMouse();
+                }
+            } else {
+                UnlockMouse();
+            }
+            return false;
+        }
+
+        if (!io.WantCaptureKeyboard) {
+            if (e.Command == "Right") {
+                float value = std::max(-1.f, std::min(e.Value, 1.f));
+                m_Velocity.x = value;
+            }
+            if (e.Command == "Forward") {
+                float value = std::max(-1.f, std::min(e.Value, 1.f));
+                m_Velocity.z = -value;
+            }
+            if (e.Command == "Sprint") {
+                if (e.Value > 0.f) {
+                    m_Speed = m_BaseSpeed * 2.f * (e.Value);
+                } else {
+                    m_Speed = m_BaseSpeed;
+                }
+            }
+        }
+
+        return FirstPersonInputController::OnCommand(e);
+    }
+
+    void Update(double dt)
+    {
+        if (glm::length2(m_Velocity) > 0) {
+            m_Position += m_Orientation * (glm::normalize(m_Velocity) * m_Speed * (float)dt);
+        }
+    }
+
+protected:
+    glm::vec3 m_Position = glm::vec3(0, 0, 0);
+    glm::vec3 m_Velocity = glm::vec3(0, 0, 0);
+    float m_BaseSpeed = 2.0f;
+    float m_Speed = m_BaseSpeed;
+};

include/Engine/Rendering/EPicking.h

@@ -34,21 +34,26 @@ public:
         EntityID Entity;
         //World position of the "pick"
         glm::vec3 Position;
+        // Depth
+        float Depth;
     };
 
     PickData Pick(glm::vec2 screenCoord) const
     {
         PickData pickData;
 
+        // Invert screen y coordinate
+        screenCoord.y = Resolution.Height - screenCoord.y;
         ScreenCoords::PixelData data = ScreenCoords::ToPixelData(screenCoord, PickingBuffer, *DepthBuffer);
+        pickData.Depth = data.Depth;
 
         auto it = PickingColorsToEntity->find(glm::vec2(data.Color[0], data.Color[1]));
         if (it != PickingColorsToEntity->end()) {
             pickData.Entity = it->second;
         } else {
-            pickData.Entity = -1;
+            pickData.Entity = EntityID_Invalid;
         }
-        pickData.Position = ScreenCoords::ToWorldPos(screenCoord.x, Resolution.Width - screenCoord.y, data.Depth, Resolution, ProjectionMatrix, ViewMatrix);
+        pickData.Position = ScreenCoords::ToWorldPos(screenCoord.x, screenCoord.y, data.Depth, Resolution, ProjectionMatrix, ViewMatrix);
 
         return pickData;
     }

include/Engine/Rendering/IRenderer.h

@@ -35,7 +35,7 @@ public:
 	virtual void Draw(RenderQueueCollection& rq) = 0;
 
 protected:
-	Rectangle m_Resolution = Rectangle(1280, 720);
+	Rectangle m_Resolution = Rectangle::Rectangle(1280, 720);
 	bool m_Fullscreen = false;
 	bool m_VSYNC = false;
 	int m_GLVersion[2];

include/Engine/Rendering/ImGuiRenderPass.h

@@ -0,0 +1,77 @@
+#include <imgui/imgui.h>
+#include "../OpenGL.h"
+#include "IRenderer.h"
+#include "RenderState.h"
+#include "../Core/EventBroker.h"
+#include "../Core/EMousePress.h"
+#include "../Core/EMouseRelease.h"
+#include "../Core/EMouseMove.h"
+#include "../Core/EMouseScroll.h"
+#include "../Core/EKeyDown.h"
+#include "../Core/EKeyUp.h"
+#include "../Core/EKeyboardChar.h"
+
+class ImGuiRenderState : public RenderState
+{
+public:
+    ImGuiRenderState()
+        : RenderState()
+    {
+        BindFramebuffer(0);
+        Enable(GL_BLEND);
+        BlendEquation(GL_FUNC_ADD);
+        BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+        Disable(GL_CULL_FACE);
+        Disable(GL_DEPTH_TEST);
+        Enable(GL_SCISSOR_TEST);
+    }
+};
+
+class ImGuiRenderPass
+{
+public:
+    ImGuiRenderPass(IRenderer* renderer, EventBroker* eventBroker);
+
+    void Update(double dt);
+    void Draw();
+
+private:
+    IRenderer* m_Renderer;
+    EventBroker* m_EventBroker;
+
+    GLFWwindow* g_Window;
+    double g_DeltaTime = 0.0;
+    float g_MouseWheel = 0.f;
+    GLuint g_FontTexture;
+    int g_ShaderHandle;
+    int g_VertHandle;
+    int g_FragHandle;
+    int g_AttribLocationTex;
+    int g_AttribLocationProjMtx;
+    int g_AttribLocationPosition;
+    int g_AttribLocationUV;
+    int g_AttribLocationColor;
+    GLuint g_VboHandle;
+    GLuint g_VaoHandle;
+    GLuint g_ElementsHandle;
+
+    EventRelay<ImGuiRenderPass, Events::MousePress> m_EMousePress;
+    bool OnMousePress(const Events::MousePress& e);
+    EventRelay<ImGuiRenderPass, Events::MouseRelease> m_EMouseRelease;
+    bool OnMouseRelease(const Events::MouseRelease& e);
+    EventRelay<ImGuiRenderPass, Events::MouseMove> m_EMouseMove;
+    bool OnMouseMove(const Events::MouseMove& e);
+    EventRelay<ImGuiRenderPass, Events::MouseScroll> m_EMouseScroll;
+    bool OnMouseScroll(const Events::MouseScroll& e);
+    EventRelay<ImGuiRenderPass, Events::KeyDown> m_EKeyDown;
+    bool OnKeyDown(const Events::KeyDown& e);
+    EventRelay<ImGuiRenderPass, Events::KeyUp> m_EKeyUp;
+    bool OnKeyUp(const Events::KeyUp& e);
+    EventRelay<ImGuiRenderPass, Events::KeyboardChar> m_EKeyboardChar;
+    bool OnKeyboardChar(const Events::KeyboardChar& e);
+
+    bool createDeviceObjects();
+    bool createFontsTexture();
+
+    void newFrame();
+};

include/Engine/Rendering/RenderQueueFactory.h

@@ -13,8 +13,12 @@ public:
     RenderQueueFactory();
     void Update(World* world);
 
-    
     RenderQueueCollection RenderQueues() const { return m_RenderQueues; }
+
+    static glm::vec3 AbsolutePosition(World* world, EntityID entity);
+    static glm::quat AbsoluteOrientation(World* world, EntityID entity);
+    static glm::vec3 AbsoluteScale(World* world, EntityID entity);
+
 private:
     RenderQueueCollection m_RenderQueues;
 
@@ -22,10 +26,6 @@ private:
     void FillLights(World* world, RenderQueue* renderQueue);
 
     glm::mat4 ModelMatrix(World* world, EntityID entity);
-
-    glm::vec3 AbsolutePosition(World* world, EntityID entity);
-    glm::quat AbsoluteOrientation(World* world, EntityID entity);
-    glm::vec3 AbsoluteScale(World* world, EntityID entity);
 };
 
 #endif

include/Engine/Rendering/RenderState.h

@@ -1,6 +1,7 @@
 #ifndef RenderState_h__
 #define RenderState_h__
 
+#include <functional>
 #include "../Common.h"
 #include "../OpenGL.h"
 #include "../GLM.h"
@@ -8,16 +9,19 @@
 class RenderState 
 {
 public:
-    RenderState();
+    RenderState() = default;
     ~RenderState();
-    bool Enable(GLenum GLEnable);
-    bool CullFace(GLenum GlFaceToCull);
+
+    bool Enable(GLenum cap);
+    bool Disable(GLenum cap);
+    bool CullFace(GLenum mode);
     bool ClearColor(glm::vec4 color);
     bool Clear(GLbitfield mask);
-    bool BindBuffer(GLint buffer);
+    bool BindFramebuffer(GLint framebuffer);
+    bool BlendEquation(GLenum mode);
+    bool BlendFunc(GLenum sfactor, GLenum dfactor);
+
 private:
-    std::vector<GLenum> m_Enables;
-    float m_preClearColor[4];
-    int m_preBuffer;
+    std::vector<std::function<void(void)>> m_ResetFunctions;
 };
 #endif

include/Engine/Rendering/Renderer.h

@@ -12,14 +12,24 @@
 #include "../Core/World.h"
 #include "PickingPass.h"
 #include "DrawScenePass.h"
+#include "DebugCameraInputController.h"
 
 
 #define TILE_SIZE 16 
-#define NUM_LIGHTS 5000
+#define NUM_LIGHTS 3
 
 
+enum lightType 
+{
+    Point,
+    Spot,
+    Directional,
+    Area
+};
+
 #include "../Core/EventBroker.h"
 #include "EPicking.h"
+#include "ImGuiRenderPass.h"
 
 class Renderer : public IRenderer
 {
@@ -36,6 +46,8 @@ private:
     //----------------------Variables----------------------//
     EventBroker* m_EventBroker;
 
+    std::shared_ptr<DebugCameraInputController<Renderer>> m_DebugCameraInputController;
+
     Texture* m_ErrorTexture;
     Texture* m_WhiteTexture;
     float m_CameraMoveSpeed;
@@ -46,6 +58,7 @@ private:
 
     DrawScenePass* m_DrawScenePass;
     PickingPass* m_PickingPass;
+    ImGuiRenderPass* m_ImGuiRenderPass;
 
     //----------------------Functions----------------------//
     void InitializeWindow();
@@ -61,13 +74,11 @@ private:
     //----------------------Forward+-----------------------//
     void CalculateFrustum();
     void CullLights();
-    void DrawForwardPlus(RenderQueueCollection& rq);
     //Frustum
     struct Plane {
         glm::vec3 Normal;
         float d;
     };
-
     struct Frustum {
         Plane Planes[4];
     };
@@ -87,23 +98,22 @@ private:
     PointLight m_PointLights[NUM_LIGHTS];
 
     struct LightGrid {
-        float Start;
-        float Amount;
+        int Amount;
+        int Start;
         glm::vec2 Padding;
     };
-
     LightGrid m_LightGrid[80*45];
 
     int m_LightOffset = 0;
 
-    float m_LightIndex[80*45*200];
+    int m_LightIndex[80*45*200];
 
     //-------------------------SSBO------------------------//
     GLuint m_FrustumSSBO = 0;
-    GLuint m_LightSSBO = 0;
-    GLuint m_LightGridSSBO = 0;
-    GLuint m_LightOffsetSSBO = 0;
-    GLuint m_LightIndexSSBO = 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-------------------//
@@ -111,7 +121,6 @@ private:
     ShaderProgram* m_DrawScreenQuadProgram;
     ShaderProgram* m_CalculateFrustumProgram;
     ShaderProgram* m_LightCullProgram;
-    ShaderProgram* m_ForwardPlusProgram;
 
 };
 

include/Game/Game.h

@@ -9,11 +9,24 @@
 #include "GUI/Frame.h"
 #include "Core/World.h"
 #include "Rendering/RenderQueueFactory.h"
+#include "Input/InputProxy.h"
+#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>
+#include "Network/Network.h"
+#include "Network/Server.h"
+#include "Network/Client.h"
+
 
 class Game
 {
@@ -30,16 +43,26 @@ private:
 	EventBroker* m_EventBroker;
 	IRenderer* m_Renderer;
 	InputManager* m_InputManager;
+    InputProxy* m_InputProxy;
 	GUI::Frame* m_FrameStack;
     World* m_World;
     SystemPipeline* m_SystemPipeline;
     RenderQueueFactory* m_RenderQueueFactory;
+    // Network variables
+    boost::thread m_NetworkThread;
 
-    EventRelay<Game, Events::KeyUp> m_EKeyUp;
-    bool testOnKeyUp(const Events::KeyUp& e);
+    // Network methods
+    void networkFunction();
+    Network* m_ClientOrServer;
+    bool m_IsClientOrServer = false;
+
+    EventRelay<Game, Events::InputCommand> m_EInputCommand;
+    bool debugOnInputCommand(const Events::InputCommand& e);
+
+    void debugInitialize();
+    void debugTick(double dt);
+	EventRelay<Client, Events::KeyDown> m_EKeyDown;
 
-    void testIntialize();
-    void testTick(double dt);
 };
 
 #endif

include/Game/HealthSystem.h

@@ -0,0 +1,36 @@
+#ifndef HealthSystem_h__
+#define HealthSystem_h__
+
+#include <GLFW/glfw3.h>
+#include <glm/common.hpp>
+
+#include "Common.h"
+#include "Core/System.h"
+#include "Core\EPlayerDamage.h";
+#include "Core\EPlayerHealthPickup.h";
+#include "Core\EPlayerDeath.h";
+
+#include <tuple>
+#include <vector>
+
+class HealthSystem : public PureSystem
+{
+public:
+    HealthSystem(EventBroker* eventBroker);
+
+    //updatecomponent
+    virtual void UpdateComponent(World* world, ComponentWrapper& health, double dt) override;
+
+private:
+    //methods which will take care of specific events
+    EventRelay<HealthSystem, Events::PlayerDamage> m_EPlayerDamage;
+    bool HealthSystem::OnPlayerDamaged(const Events::PlayerDamage& e);
+    EventRelay<HealthSystem, Events::PlayerHealthPickup> m_EPlayerHealthPickup;
+    bool HealthSystem::OnPlayerHealthPickup(const Events::PlayerHealthPickup& e);
+
+    //vector which will keep track of health changes
+    std::vector<std::tuple<EntityID, double>> m_DeltaHealthVector;
+   
+};
+
+#endif

include/Game/PlayerSystem.h

@@ -6,39 +6,28 @@
 
 #include "Common.h"
 #include "Core/System.h"
-#include "Core/EventBroker.h"
-#include "Core/EKeyDown.h"
-#include "Core/EKeyUp.h"
+#include "Collision/ETrigger.h"
 
-struct KeyInput
-{
-    bool Forward = false;
-    bool Left = false;
-    bool Back = false;
-    bool Right = false;
-};
-
-class PlayerSystem : public System
+class PlayerSystem : public PureSystem
 {
 public:
     PlayerSystem(EventBroker* eventBroker)
-        : System(eventBroker, "Player")
+        : PureSystem(eventBroker, "Player")
     {
-        EVENT_SUBSCRIBE_MEMBER(m_EKeyDown, &PlayerSystem::OnKeyDown);
-        EVENT_SUBSCRIBE_MEMBER(m_EKeyUp, &PlayerSystem::OnKeyUp);
+        EVENT_SUBSCRIBE_MEMBER(m_ETouch, &PlayerSystem::OnTouch);
+        EVENT_SUBSCRIBE_MEMBER(m_EEnter, &PlayerSystem::OnEnter);
+        EVENT_SUBSCRIBE_MEMBER(m_ELeave, &PlayerSystem::OnLeave);
     }
 
-    virtual void Update(World* world, ComponentWrapper& player, double dt) override;
-
+    virtual void UpdateComponent(World* world, ComponentWrapper& player, double dt) override;
 private:
     float m_Speed = 5;
-    glm::vec3 m_Direction;
-    KeyInput input;
-
-    EventRelay<PlayerSystem, Events::KeyDown> m_EKeyDown;
-    bool OnKeyDown(const Events::KeyDown &event);
-    EventRelay<PlayerSystem, Events::KeyUp> m_EKeyUp;
-    bool OnKeyUp(const Events::KeyUp &event);
+    EventRelay<PlayerSystem, Events::TriggerEnter> m_EEnter;
+    bool OnEnter(const Events::TriggerEnter &event);
+    EventRelay<PlayerSystem, Events::TriggerTouch> m_ETouch;
+    bool PlayerSystem::OnTouch(const Events::TriggerTouch &event);
+    EventRelay<PlayerSystem, Events::TriggerLeave> m_ELeave;
+    bool PlayerSystem::OnLeave(const Events::TriggerLeave &event);
 };
 
 #endif

include/Game/RaptorCopterSystem.h

@@ -1,16 +1,14 @@
 #include "Common.h"
 #include "Core/System.h"
 
-class RaptorCopterSystem : public System
+class RaptorCopterSystem : public PureSystem
 {
 public:
     RaptorCopterSystem(EventBroker* eventBroker)
-        : System(eventBroker, "RaptorCopter")
+        : PureSystem(eventBroker, "RaptorCopter")
     { }
 
-	virtual void Initialize() { }
-
-    virtual void Update(World* world, ComponentWrapper& raptorCopter, double dt) override
+    virtual void UpdateComponent(World* world, ComponentWrapper& raptorCopter, double dt) override
     {
         ComponentWrapper& transform = world->GetComponent(raptorCopter.EntityID, "Transform");
         (glm::vec3&)transform["Orientation"] += (float)(double)raptorCopter["Speed"] * (float)dt * (glm::vec3)raptorCopter["Axis"];

resources/DefaultConfig.ini

@@ -1,10 +1,19 @@
 [Debug]
 LogLevel=1
 LoadMap=
+EditorEnabled=false
+
 
 [Video]
 Fullscreen=false
 VSYNC=false
 Width=1280
 Height=720
-FOV=45
+FOV=45
+
+[Networking]
+StartNetwork=false
+IsServer=false
+Name=Bob
+Address=127.0.0.1
+Port=13

resources/DefaultInput.ini

@@ -0,0 +1,24 @@
+[Mouse]
+Sensitivity=0.5
+InvertPitch=false
+
+[Bindings]
+MouseLeft=PrimaryFire
+MouseX=Yaw
+MouseY=Pitch
+W=+Forward
+S=-Forward
+D=+Right
+A=-Right
+R=Reload
+Space=Jump
+LeftControl=Crouch
+LeftShift=Sprint
+F1=ToggleEditor
+1=EditorToolMove
+2=EditorToolRotate
+3=EditorToolScale
+X=EditorToggleTransformSpace
+C=ConnectToServer
+N=SwitchToServer
+M=SwitchToClient

resources/Schema/Components.xsd

@@ -6,4 +6,7 @@
 	<xs:include schemaLocation="Components/Test.xsd"/>
 	<xs:include schemaLocation="Components/RaptorCopter.xsd"/>
 	<xs:include schemaLocation="Components/Player.xsd"/>
+	<xs:include schemaLocation="Components/AABB.xsd"/>
+	<xs:include schemaLocation="Components/Trigger.xsd"/>
+	<xs:include schemaLocation="Components/Health.xsd"/>
 </xs:schema>

resources/Schema/Components/AABB.xml

@@ -0,0 +1,4 @@
+<c:AABB>
+	<BoxCenter X="0" Y="0" Z="0"/>
+	<BoxSize X="1" Y="1" Z="1"/>
+</c:AABB>

resources/Schema/Components/AABB.xsd

@@ -0,0 +1,14 @@
+<?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="AABB">
+		<xs:complexType>
+			<xs:all>
+				<xs:element name="BoxCenter" type="t:Vector" minOccurs="0"/>
+				<xs:element name="BoxSize" type="t:Vector" minOccurs="0"/>
+			</xs:all>
+		</xs:complexType>
+	</xs:element>
+</xs:schema>

resources/Schema/Components/Health.xml

@@ -0,0 +1,4 @@
+<c:Health>
+	<Health>100</Health>
+	<MaxHealth>100</MaxHealth>
+</c:Health>

resources/Schema/Components/Health.xsd

@@ -0,0 +1,14 @@
+<?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="Health">
+		<xs:complexType>
+			<xs:all>
+				<xs:element name="Health" type="t:double" minOccurs="0"/>
+				<xs:element name="MaxHealth" type="t:double" minOccurs="0"/>
+			</xs:all>
+		</xs:complexType>
+	</xs:element>
+</xs:schema>

resources/Schema/Components/Player.xml

@@ -1,3 +1,7 @@
 <c:Player>
 	<Velocity X="0" Y="0" Z="0"/>
+	<Forward>false</Forward>
+	<Left>false</Left>
+	<Back>false</Back>
+	<Right>false</Right>
 </c:Player>

resources/Schema/Components/Player.xsd

@@ -7,6 +7,10 @@
 		<xs:complexType>
 			<xs:all>
 				<xs:element name="Velocity" type="t:Vector" minOccurs="0"/>
+				<xs:element name="Forward" type="t:bool" minOccurs="0"/>
+				<xs:element name="Left" type="t:bool" minOccurs="0"/>
+				<xs:element name="Back" type="t:bool" minOccurs="0"/>
+				<xs:element name="Right" type="t:bool" minOccurs="0"/>
 			</xs:all>
 		</xs:complexType>
 	</xs:element>

resources/Schema/Components/Test.xml

@@ -1,6 +0,0 @@
-<c:Test>
-	<Integer>1</Integer>
-	<Float>1.333</Float>
-	<Vector X="1.33333" Y="2.33333" Z="3.33333"/>
-	<Quaternion X="1.33333" Y="2.33333" Z="3.33333" W="4.44444"/>
-</c:Test>

resources/Schema/Components/Test.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="Test">
-		<xs:annotation>
-			<xs:documentation>ECS Test Component</xs:documentation>
-		</xs:annotation>
-		<xs:complexType>
-			<xs:all>
-				<xs:element name="Integer" type="t:int" minOccurs="0"/>
-				<xs:element name="Double" type="t:double" minOccurs="0"/>
-				<xs:element name="String" type="t:string" minOccurs="0"/>
-				<xs:element name="Vector" type="t:Vector" minOccurs="0"/>
-				<xs:element name="Quaternion" type="t:Quaternion" minOccurs="0"/>
-			</xs:all>
-		</xs:complexType>
-	</xs:element>
-</xs:schema>

resources/Schema/Components/Transform.xml

@@ -1,5 +1,5 @@
 <c:Transform>
 	<Position X="0" Y="0" Z="0"/>
-	<Orientation X="0" Y="0" Z="0" W="0"/>
+	<Orientation X="0" Y="0" Z="0"/>
 	<Scale X="1" Y="1" Z="1"/>
 </c:Transform>

resources/Schema/Components/Trigger.xml

@@ -0,0 +1,2 @@
+<c:Trigger>
+</c:Trigger>

resources/Schema/Components/Trigger.xsd

@@ -0,0 +1,8 @@
+<?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="Trigger">
+	</xs:element>
+</xs:schema>

resources/Schema/Entities/CollisionTestLevel.xml

@@ -0,0 +1,122 @@
+<?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">
+	<Components>
+		<c:Transform>
+			<Orientation X="0" Y="0" Z="0"/>
+		</c:Transform>
+		<c:Model>
+			<Resource>Models/DummyScene.obj</Resource>
+		</c:Model>
+	</Components>
+	<Children>
+		<Entity>
+			<Components>
+				<c:Transform>
+					<Position X="-1.5"/>
+					<Scale X="1" Y="1" Z="1"/>
+				</c:Transform>
+				<c:Model>
+					<Resource>Models/ScaleWidget.obj</Resource>
+				</c:Model>
+			</Components>
+		</Entity>
+		<Entity>
+			<Components>
+				<c:Transform>
+					<Position X="1.5"/>
+					<Scale X="2" Y="2" Z="2"/>
+				</c:Transform>
+				<c:Model>
+					<Resource>Models/RotationWidgetX.obj</Resource>
+				</c:Model>
+				<c:Trigger>
+				</c:Trigger>
+			</Components>
+		</Entity>
+		<Entity>
+			<Components>
+				<c:Player>
+					<Velocity X="0" Y="0" Z="0"/>
+				</c:Player>
+				<c:Transform>
+					<Position X="2.5"/>
+				</c:Transform>
+				<c:Model>
+					<Resource>Models/Core/UnitCube.obj</Resource>
+				</c:Model>
+				<c:AABB>
+				</c:AABB>
+			</Components>
+		</Entity>
+		<Entity>
+			<Components>
+				<c:Transform>
+					<Position X="0" Y="-0"/>
+					<Scale X="1" Y="1" Z="1"/>
+				</c:Transform>
+				<!--<c:Move>
+					<Speed>1</Speed>
+					<Direction X="-1"/>
+					<Rotation Y="3.14"/>
+				</c:Move>-->
+			</Components>
+			<Children>
+				<Entity>
+					<Components>
+						<c:Transform>
+							<Position X="0" Y="0"/>
+							<Orientation X="0.0" Y="0" Z="1.0"/>
+						</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="-0.01" Y="0.55"/>
+									<Orientation X="0" Y="0" Z="-1"/>
+								</c:Transform>
+								<c:RaptorCopter>
+									<Speed>20</Speed>
+									<Axis Y="1"/>
+								</c:RaptorCopter>
+							</Components>
+							<Children>
+								<Entity>
+									<Components>
+										<c:Transform>
+											<Position X="0" Y="0"/>
+											<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"/>
+											<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>
+			</Children>
+		</Entity>
+	</Children>
+</Entity>

resources/Schema/Entities/EditorTestWorld.xml

@@ -0,0 +1,49 @@
+<?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">
+	<Components>
+		<c:Transform>
+			<Position X="0" Y="0" Z="0"/>
+			<Orientation X="0" Y="0" Z="0"/>
+		</c:Transform>
+	</Components>
+	<Children>
+		<Entity>
+			<Components>
+				<c:Transform>
+					<Position X="0" Y="0" Z="0"/>
+					<Scale X="100" Y="1" Z="100"/>
+				</c:Transform>
+				<c:Model>
+					<Resource>Models/Core/UnitPlane.obj</Resource>
+				</c:Model>
+			</Components>
+		</Entity>
+		<Entity>
+			<Components>
+				<c:Transform>
+					<Position X="1" Y="1" Z="0"/>
+					<Orientation X="0" Y="0.78539" Z="0"/>
+				</c:Transform>
+				<c:Model>
+					<Resource>An error</Resource>
+				</c:Model>
+			</Components>
+			<Children>
+				<Entity>
+					<Components>
+						<c:Transform>
+							<Position X="2" Y="0" Z="0"/>
+							<Orientation X="0" Y="0.78539" Z="0"/>
+						</c:Transform>
+						<c:Model>
+							<Resource>An error</Resource>
+						</c:Model>
+					</Components>
+					<Children>
+					</Children>
+				</Entity>
+			</Children>
+		</Entity>
+	</Children>
+</Entity>

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

@@ -5,18 +5,11 @@
 		<c:Transform>
 			<Orientation X="0" Y="0" Z="0"/>
 		</c:Transform>
+		<c:Model>
+			<Resource>Models/DummyScene.obj</Resource>
+		</c:Model>
 	</Components>
 	<Children>
-		<Entity>
-			<Components>
-				<c:Transform>
-					<Scale X="10000" Y="10000" Z="10000"/>
-				</c:Transform>
-				<c:Model>
-					<Resource>Models/Core/UnitPlane.obj</Resource>
-				</c:Model>
-			</Components>
-		</Entity>
 		<Entity>
 			<Components>
 				<c:Transform>
@@ -32,13 +25,16 @@
 			<Components>
 				<c:Transform>
 					<Position X="1.5"/>
+					<Scale X="2" Y="2" Z="2"/>
 				</c:Transform>
 				<c:Model>
 					<Resource>Models/RotationWidget.obj</Resource>
 				</c:Model>
+				<c:Trigger>
+				</c:Trigger>
 			</Components>
 		</Entity>
-		<Entity>
+		<!--<Entity>
 			<Components>
 				<c:Player>
 					<Velocity X="0" Y="0" Z="0"/>
@@ -49,8 +45,10 @@
 				<c:Model>
 					<Resource>Models/Core/UnitCube.obj</Resource>
 				</c:Model>
+				<c:AABB>
+				</c:AABB>
 			</Components>
-		</Entity>
+		</Entity>-->
 		<Entity>
 			<Components>
 				<c:Transform>

resources/Schema/Types/Entity.xsd

@@ -15,6 +15,7 @@
 							<xs:element ref="c:Test" minOccurs="0"/>
 							<xs:element ref="c:RaptorCopter" minOccurs="0"/>
 							<xs:element ref="c:Player" minOccurs="0"/>
+							<xs:element ref="c:Health" minOccurs="0"/>
 						</xs:all>
 					</xs:complexType>
 				</xs:element>
@@ -28,6 +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/ForwardPlus.frag.glsl

@@ -1,131 +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 += 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

@@ -1,18 +1,16 @@
 #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
+//in uvec3 gl_NumWorkGroups;
+//in uvec3 gl_WorkGroupID;
+//in uvec3 gl_LocalInvocationID;
+//in uvec3 gl_GlobalInvocationID;
+//in uint  gl_LocalInvocationIndex;
 
 
 
-#define MAX_LIGHTS_PER_TILE 1024
+#define NUM_LIGHTS 3
+#define MAX_LIGHTS_PER_TILE 200
 #define NUM_TILES 3600
-#define TILE_SIZE 16
-
-uniform mat4 V;
 
 struct Plane {
 	vec3 Normal;
@@ -24,131 +22,14 @@ struct Frustum {
 
 layout (std430, binding = 0) buffer FrustumBuffer
 {
-	Frustum Data[];
+	Frustum Data[3600];
 } 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];
+		if(1 == 1) {
 	}
 }

src/Engine/CMakeLists.txt

@@ -60,7 +60,6 @@ file(GLOB SOURCE_FILES_Rendering_Util
     "${INCLUDE_PATH}/Rendering/Util/*.h"
     "Rendering/Util/*.cpp"
 )
-
 source_group(Rendering FILES ${SOURCE_FILES_Rendering})
 source_group(Rendering\\Util FILES ${SOURCE_FILES_Rendering_Util})
 
@@ -70,16 +69,48 @@ file(GLOB SOURCE_FILES_GUI
 )
 source_group(GUI FILES ${SOURCE_FILES_GUI})
 
+file(GLOB SOURCE_FILES_Collision
+    "${INCLUDE_PATH}/Collision/*.h"
+    "Collision/*.cpp"
+)
+source_group(Collision FILES ${SOURCE_FILES_Collision})
+
+file(GLOB SOURCE_FILES_Editor
+	"${INCLUDE_PATH}/Editor/*.h"
+	"Editor/*.cpp"
+)
+source_group(Editor FILES ${SOURCE_FILES_Editor})
+
 set(SOURCE_FILES
     ${SOURCE_FILES_Core}
     ${SOURCE_FILES_Core_Util}
-    #${SOURCE_FILES_Input}
+    ${SOURCE_FILES_Input}
 	${SOURCE_FILES_Network}
     ${SOURCE_FILES_GUI}
     ${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
+	${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}
@@ -103,4 +134,4 @@ target_link_libraries(Engine
     ${LIBRARIES}
 )
 #set_target_properties(Engine PROPERTIES COTIRE_CXX_PREFIX_HEADER_INIT "${INCLUDE_PATH}/PrecompiledHeader.h")
-#cotire(Engine)
+#cotire(Engine)

src/Engine/Collision/Collision.cpp

@@ -0,0 +1,282 @@
+#include <algorithm>
+
+#include "Collision/Collision.h"
+#include "Engine/GLM.h"
+#include "Core/World.h"
+#include "Rendering/Model.h"
+
+namespace Collision
+{
+
+    //note: this one hasnt been delta adjusted like RayVsAABB has
+    bool RayAABBIntr(const Ray& ray, const AABB& box)
+    {
+        glm::vec3 w = 75.0f * ray.Direction();
+        glm::vec3 v = glm::abs(w);
+        glm::vec3 c = ray.Origin() - box.Center() + w;
+        glm::vec3 half = box.HalfSize();
+
+        if (abs(c.x) > v.x + half.x) {
+            return false;
+        }
+        if (abs(c.y) > v.y + half.y) {
+            return false;
+        }
+        if (abs(c.z) > v.z + half.z) {
+            return false;
+        }
+
+        if (abs(c.y*w.z - c.z*w.y) > half.y*v.z + half.z*v.y) {
+            return false;
+        }
+        if (abs(c.x*w.z - c.z*w.x) > half.x*v.z + half.z*v.x) {
+            return false;
+        }
+        return !(abs(c.x*w.y - c.y*w.x) > half.x*v.y + half.y*v.x);
+    }
+
+    bool RayVsAABB(const Ray& ray, const AABB& box)
+    {
+        float dummy;
+        return RayVsAABB(ray, box, dummy);
+    }
+
+    bool RayVsAABB(const Ray& ray, const AABB& box, float& outDistance)
+    {
+        glm::vec3 invdir = 1.0f / ray.Direction();
+        glm::vec3 origin = ray.Origin();
+
+        float t1 = (box.MinCorner().x - origin.x)*invdir.x;
+        float t2 = (box.MaxCorner().x - origin.x)*invdir.x;
+        float t3 = (box.MinCorner().y - origin.y)*invdir.y;
+        float t4 = (box.MaxCorner().y - origin.y)*invdir.y;
+        float t5 = (box.MinCorner().z - origin.z)*invdir.z;
+        float t6 = (box.MaxCorner().z - origin.z)*invdir.z;
+
+        float tmin = std::max(std::max(std::min(t1, t2), std::min(t3, t4)), std::min(t5, t6));
+        float tmax = std::min(std::min(std::max(t1, t2), std::max(t3, t4)), std::max(t5, t6));
+
+        //if (tmax < 0 || tmin > tmax)
+        //if tmin,tmax are almost the same (i.e. hitting exactly in the corner) then tmin might be slightly 
+        //greater than tmax becuase of floating-precision problems. fixed by adding a small delta to tmax
+        if (tmax < 0 || tmin>(tmax + 0.0001f))
+            return false;
+
+        outDistance = (tmin > 0) ? tmin : tmax;
+        return true;
+    }
+
+    bool AABBVsAABB(const AABB& a, const AABB& b)
+    {
+        const glm::vec3& aCenter = a.Center();
+        const glm::vec3& bCenter = b.Center();
+        const glm::vec3& aHSize = a.HalfSize();
+        const glm::vec3& bHSize = b.HalfSize();
+        //Test will probably exit because of the X and Z axes more often, so test them first.
+        if (abs(aCenter[0] - bCenter[0]) > (aHSize[0] + bHSize[0])) {
+            return false;
+        }
+        if (abs(aCenter[2] - bCenter[2]) > (aHSize[2] + bHSize[2])) {
+            return false;
+        }
+        return (abs(aCenter[1] - bCenter[1]) <= (aHSize[1] + bHSize[1]));
+    }
+
+    bool AABBVsAABB(const AABB& a, const AABB& b, glm::vec3& minimumTranslation)
+    {
+        minimumTranslation = glm::vec3(0, 0, 0);
+        const glm::vec3& aMax = a.MaxCorner();
+        const glm::vec3& bMax = b.MaxCorner();
+        const glm::vec3& aMin = a.MinCorner();
+        const glm::vec3& bMin = b.MinCorner();
+        const glm::vec3& bSize = b.Size();
+        const glm::vec3& aSize = a.Size();
+        float minOffset = INFINITY;
+        float off;
+        auto axisesIntersecting = glm::tvec3<bool, glm::highp>(false, false, false);
+        for (int i = 0; i < 3; ++i) {
+            off = bMax[i] - aMin[i];
+            if (off > 0 && off < bSize[i] + aSize[i]) {
+                if (off < minOffset) {
+                    minimumTranslation = glm::vec3();
+                    minimumTranslation[i] = minOffset = off;
+                }
+                axisesIntersecting[i] = true;
+            }
+            off = aMax[i] - bMin[i];
+            if (off > 0 && off < bSize[i] + aSize[i]) {
+                if (off < minOffset) {
+                    minOffset = off;
+                    minimumTranslation = glm::vec3();
+                    minimumTranslation[i] = -off;
+                }
+                axisesIntersecting[i] = true;
+            }
+        }
+        return glm::all(axisesIntersecting);
+    }
+
+    bool RayVsModel(const Ray& ray,
+        const std::vector<RawModel::Vertex>& modelVertices,
+        const std::vector<unsigned int>& modelIndices)
+    {
+        for (int i = 0; i < modelIndices.size(); ++i) {
+            glm::vec3 v0 = modelVertices[modelIndices[i]].Position;
+            glm::vec3 e1 = modelVertices[modelIndices[++i]].Position - v0;		//v1 - v0
+            glm::vec3 e2 = modelVertices[modelIndices[++i]].Position - v0;		//v2 - v0
+            glm::vec3 m = ray.Origin() - v0;
+            glm::vec3 MxE1 = glm::cross(m, e1);
+            glm::vec3 DxE2 = glm::cross(ray.Direction(), e2);
+            float DetInv = glm::dot(e1, DxE2);
+            if (std::abs(DetInv) < FLT_EPSILON) {
+                continue;
+            }
+            DetInv = 1.0f / DetInv;
+            float u = glm::dot(m, DxE2) * DetInv;
+            float v = glm::dot(ray.Direction(), MxE1) * DetInv;
+            //u,v can be very close to 0 but still negative sometimes. added a deltafactor to compensate for that problem
+            if ((u + 0.001f) < 0 || (v + 0.001f) < 0 || 1 < u + v) {
+                continue;
+            }
+            //Here, u and v are positive, u+v <= 1, and if distance is positive - triangle is hit.
+            if (0 <= glm::dot(e2, MxE1) * DetInv) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    bool RayVsModel(const Ray& ray,
+        const std::vector<RawModel::Vertex>& modelVertices,
+        const std::vector<unsigned int>& modelIndices,
+        float& outDistance,
+        float& outUCoord,
+        float& outVCoord)
+    {
+        outDistance = INFINITY;
+        bool hit = false;
+        for (int i = 0; i < modelIndices.size(); ++i) {
+            glm::vec3 v0 = modelVertices[modelIndices[i]].Position;
+            glm::vec3 e1 = modelVertices[modelIndices[++i]].Position - v0;		//v1 - v0
+            glm::vec3 e2 = modelVertices[modelIndices[++i]].Position - v0;		//v2 - v0
+            glm::vec3 m = ray.Origin() - v0;
+            glm::vec3 MxE1 = glm::cross(m, e1);
+            glm::vec3 DxE2 = glm::cross(ray.Direction(), e2);//pVec
+            float DetInv = glm::dot(e1, DxE2);
+            if (std::abs(DetInv) < FLT_EPSILON) {
+                continue;
+            }
+            DetInv = 1.0f / DetInv;
+            float dist = glm::dot(e2, MxE1) * DetInv;
+            if (dist >= outDistance) {
+                continue;
+            }
+            float u = glm::dot(m, DxE2) * DetInv;
+            float v = glm::dot(ray.Direction(), MxE1) * DetInv;
+
+            //u,v can be very close to 0 but still negative sometimes. added a deltafactor to compensate for that problem
+            //If u and v are positive, u+v <= 1, dist is positive, and less than closest.
+            if (0 <= (u + 0.001f) && 0 <= (v + 0.001f) && u + v <= 1 && 0 <= dist) {
+                outDistance = dist;
+                outUCoord = u;
+                outVCoord = v;
+                hit = true;
+            }
+        }
+        return hit;
+    }
+
+    bool RayVsModel(const Ray& ray,
+        const std::vector<RawModel::Vertex>& modelVertices,
+        const std::vector<unsigned int>& modelIndices,
+        glm::vec3& outHitPosition)
+    {
+        float u;
+        float v;
+        float dist;
+        bool hit = RayVsModel(ray, modelVertices, modelIndices, dist, u, v);
+        outHitPosition = ray.Origin() + dist * ray.Direction();
+        return hit;
+    }
+
+bool IsSameBoxProbably(const AABB& first, const AABB& second, const float epsilon)
+{
+    const glm::vec3& ma1 = first.MaxCorner();
+    const glm::vec3& ma2 = first.MaxCorner();
+    const glm::vec3& mi1 = second.MinCorner();
+    const glm::vec3& mi2 = second.MinCorner();
+    return (std::abs(ma1.x - ma2.x) < epsilon) &&
+        (std::abs(mi1.x - mi2.x) < epsilon) &&
+        (std::abs(ma1.z - ma2.z) < epsilon) &&
+        (std::abs(mi1.z - mi2.z) < epsilon) &&
+        (std::abs(ma1.y - ma2.y) < epsilon) &&
+        (std::abs(mi1.y - mi2.y) < epsilon);
+}
+
+bool attachAABBComponentFromModel(World* world, EntityID id)
+{
+    if (!world->HasComponent(id, "Model")) {
+        return false;
+    }
+    ComponentWrapper model = world->GetComponent(id, "Model");
+    ComponentWrapper collision = world->AttachComponent(id, "AABB");
+    Model* modelRes = ResourceManager::Load<Model>(model["Resource"]);
+    if (modelRes == nullptr) {
+        return false;
+    }
+
+    glm::mat4 modelMatrix = modelRes->m_Matrix;
+
+    glm::vec3 mini = glm::vec3(INFINITY, INFINITY, INFINITY);
+    glm::vec3 maxi = glm::vec3(-INFINITY, -INFINITY, -INFINITY);
+    for (const auto& v : modelRes->m_Vertices) {
+        const auto& wPos = modelMatrix * glm::vec4(v.Position.x, v.Position.y, v.Position.z, 1);
+        maxi.x = std::max(wPos.x, maxi.x);
+        maxi.y = std::max(wPos.y, maxi.y);
+        maxi.z = std::max(wPos.z, maxi.z);
+        mini.x = std::min(wPos.x, mini.x);
+        mini.y = std::min(wPos.y, mini.y);
+        mini.z = std::min(wPos.z, mini.z);
+    }
+    collision["BoxCenter"] = 0.5f * (maxi + mini);
+    collision["BoxSize"] = maxi - mini;
+    return true;
+}
+
+bool GetEntityBox(World* world, ComponentWrapper& AABBComponent, AABB& outBox)
+{
+    ComponentWrapper& cTrans = world->GetComponent(AABBComponent.EntityID, "Transform");
+    ComponentWrapper model = world->GetComponent(AABBComponent.EntityID, "Model");
+    Model* modelRes = ResourceManager::Load<Model>(model["Resource"]);
+    outBox.CreateFromCenter(AABBComponent["BoxCenter"], AABBComponent["BoxSize"]);
+    glm::vec3 mini = outBox.MinCorner();
+    glm::vec3 maxi = outBox.MaxCorner();
+
+    if (modelRes == nullptr) {
+        return false;
+    }
+    glm::mat4 modelMatrix = modelRes->m_Matrix *
+        glm::translate(glm::mat4(), (glm::vec3)cTrans["Position"]) *
+        glm::scale((glm::vec3)cTrans["Scale"]);
+
+    outBox = AABB(modelMatrix * glm::vec4(mini.x, mini.y, mini.z, 1),
+        modelMatrix * glm::vec4(maxi.x, maxi.y, maxi.z, 1));
+    return true;
+}
+
+bool GetEntityBox(World* world, EntityID entity, AABB& outBox, bool forceBoxFromModel)
+{
+    if (!world->HasComponent(entity, "AABB")) {
+        if (forceBoxFromModel) {
+            if (!attachAABBComponentFromModel(world, entity))
+                return false;
+        } else {
+            return false;
+        }
+    }
+
+    ComponentWrapper& cBox = world->GetComponent(entity, "AABB");
+    return GetEntityBox(world, cBox, outBox);
+}
+
+}

src/Engine/Collision/CollisionSystem.cpp

@@ -0,0 +1,40 @@
+#include "Collision/Collision.h"
+#include "Collision/CollisionSystem.h"
+#include "Core/AABB.h"
+
+void CollisionSystem::UpdateComponent(World * world, ComponentWrapper & cAABB, double dt)
+{
+    //Right now, cAABB is a component attached to any entity that should be collideable.
+    AABB thisBox;
+    if (!Collision::GetEntityBox(world, cAABB, thisBox)) {
+        return;
+    }
+    //Press 'Z' to enable/disable collision.
+    if (zPress) {
+        return;
+    }
+    //Here, mover should be an object that moves, currently only players.
+    for (auto& mover : *world->GetComponents("Player")) {
+        if (cAABB.EntityID == mover.EntityID) {
+            continue;
+        }
+        AABB otherBox;
+        if (!Collision::GetEntityBox(world, mover.EntityID, otherBox)) {
+            continue;
+        }
+        glm::vec3 resolveTranslation;
+        if (Collision::AABBVsAABB(otherBox, thisBox, resolveTranslation)) {
+            ComponentWrapper& trans = world->GetComponent(mover.EntityID, "Transform");
+            //TODO: Special treatment if both are movers.
+            trans["Position"] = (glm::vec3)trans["Position"] + resolveTranslation;
+        }
+    }
+}
+
+bool CollisionSystem::OnKeyUp(const Events::KeyUp & event)
+{
+    if (event.KeyCode == GLFW_KEY_Z) {
+        zPress = !zPress;
+    }
+    return false;
+}

src/Engine/Collision/TriggerSystem.cpp

@@ -0,0 +1,81 @@
+#include "Collision/TriggerSystem.h"
+#include "Collision/Collision.h"
+#include "Core/AABB.h"
+#include "Rendering/Model.h"
+
+void TriggerSystem::UpdateComponent(World* world, ComponentWrapper& trigger, double dt)
+{
+    //Currently only players can trigger things.
+    auto players = world->GetComponents("Player");
+    if (players == nullptr) {
+        return;
+    }
+    EntityID tId = trigger.EntityID;
+    AABB triggerBox;
+    //The trigger *should* have a bounding box, or something, to test against so it can be triggered.
+    if (!Collision::GetEntityBox(world, tId, triggerBox, true)) {
+        return;
+    }
+    for (auto& pc : *players) {
+        EntityID pId = pc.EntityID;
+        AABB playerBox;
+        //The player can't trigger anything without an AABB.
+        if (!Collision::GetEntityBox(world, pId, playerBox, true)) {
+            continue;
+        }
+        if (!Collision::AABBVsAABB(triggerBox, playerBox)) {
+            //Entity is not touching the trigger,
+            //Throw event if it was previously.
+            if (throwLeaveIfWasInTrigger(m_EntitiesTouchingTrigger[tId], pId, tId)) {
+                continue;
+            }
+            //This only occurs if the entity was completely inside the trigger one frame, 
+            //then completely outside the trigger, e.g. when dying and respawning.
+            throwLeaveIfWasInTrigger(m_EntitiesCompletelyInTrigger[tId], pId, tId);
+        } else {
+            //Entity is at least touching the trigger.
+            AABB completelyInsideBox;
+            completelyInsideBox.CreateFromCenter(triggerBox.Center(), triggerBox.Size() - 2.0f * playerBox.Size());
+            if (Collision::AABBVsAABB(completelyInsideBox, playerBox) &&
+                glm::all(glm::greaterThan(triggerBox.Size(), playerBox.Size()))) {
+                //Entity is completely inside the trigger.
+                //If it was only touching before, it is erased.
+                m_EntitiesTouchingTrigger[tId].erase(pId);
+                std::unordered_set<EntityID>& completeSet = m_EntitiesCompletelyInTrigger[tId];
+                if (completeSet.count(pId) == 0) {
+                    //If it wasn't completely in the trigger, throw Enter and add to the set.
+                    completeSet.insert(pId);
+                    publish<Events::TriggerEnter>(pId, tId);
+                }
+            } else {
+                //Entity is only touching the trigger.
+                std::unordered_set<EntityID>& touchSet = m_EntitiesTouchingTrigger[tId];
+                std::unordered_set<EntityID>& completeSet = m_EntitiesCompletelyInTrigger[tId];
+                const auto& it = completeSet.find(pId);
+                //If it was completely inside before.
+                if (it != completeSet.end()) {
+                    completeSet.erase(it);
+                    touchSet.insert(pId);
+                    //If it was completely outside before.
+                } else if (touchSet.count(pId) == 0) {
+                    publish<Events::TriggerTouch>(pId, tId);
+                    touchSet.insert(pId);
+                }
+                //Else, it was touching the trigger last frame too and nothing is done.
+            }
+        }
+    }
+}
+
+bool TriggerSystem::throwLeaveIfWasInTrigger(std::unordered_set<EntityID>& triggerSet, EntityID pId, EntityID tId)
+{
+    const auto& it = triggerSet.find(pId);
+    if (it != triggerSet.end()) {
+        //If it was in the trigger, but not anymore, throw leaveEvent and erase from the set.
+        triggerSet.erase(it);
+        publish<Events::TriggerLeave>(pId, tId);
+        return true;
+    }
+    return false;
+}
+

src/Engine/Core/AABB.cpp

@@ -0,0 +1,34 @@
+#include "Core/AABB.h"
+#include "Common.h"
+
+AABB::AABB(const glm::vec3& minPos, const glm::vec3& maxPos)
+    : m_MinCorner(minPos)
+    , m_MaxCorner(maxPos)
+    , m_Center(0.5f * (maxPos + minPos))
+    , m_HalfSize(0.5f * (maxPos - minPos))
+{
+    DEBUG_IF(glm::any(glm::lessThan(m_MaxCorner, m_MinCorner))) {
+        LOG_WARNING("AABB maxCorner coordinates are not greater than minCorner");
+        m_MaxCorner.x = glm::max(m_MaxCorner.x, m_MinCorner.x);
+        m_MinCorner.x = glm::min(m_MaxCorner.x, m_MinCorner.x);
+        m_MaxCorner.y = glm::max(m_MaxCorner.y, m_MinCorner.y);
+        m_MinCorner.y = glm::min(m_MaxCorner.y, m_MinCorner.y);
+        m_MaxCorner.z = glm::max(m_MaxCorner.z, m_MinCorner.z);
+        m_MinCorner.z = glm::min(m_MaxCorner.z, m_MinCorner.z);
+    }
+}
+
+AABB::AABB(const glm::vec4& minPos, const glm::vec4& maxPos)
+    : AABB(glm::vec3(minPos), glm::vec3(maxPos))
+{}
+
+void AABB::CreateFromCenter(const glm::vec3& center, const glm::vec3& size)
+{
+    m_Center = center;
+    m_HalfSize = 0.5f * size;
+    m_MinCorner = m_Center - m_HalfSize;
+    m_MaxCorner = m_Center + m_HalfSize;
+}
+
+AABB::~AABB()
+{}

src/Engine/Core/ComponentPool.cpp

@@ -19,7 +19,7 @@ bool ComponentPoolForwardIterator::operator!=(const ComponentPoolForwardIterator
     return m_MemoryPoolIterator != other.m_MemoryPoolIterator;
 }
 
-ComponentPoolForwardIterator& ComponentPoolForwardIterator::operator++(int)
+ComponentPoolForwardIterator ComponentPoolForwardIterator::operator++(int)
 {
     ComponentPoolForwardIterator copyIter(*this);
     operator++();
@@ -50,10 +50,16 @@ ComponentWrapper ComponentPool::GetByEntity(EntityID ent)
     return ComponentWrapper(m_ComponentInfo, m_EntityToComponent.at(ent));
 }
 
+
+bool ComponentPool::KnowsEntity(EntityID ent)
+{
+    return m_EntityToComponent.find(ent) != m_EntityToComponent.end();
+}
+
 void ComponentPool::Delete(ComponentWrapper& wrapper)
 {
     m_EntityToComponent.erase(wrapper.EntityID);
-    m_Pool.Free(wrapper.Data);
+    m_Pool.Free(wrapper.Data - sizeof(EntityID));
 }
 
 ComponentPool::iterator ComponentPool::begin() const

src/Engine/Core/ConfigFile.cpp

@@ -24,8 +24,11 @@ ConfigFile::ConfigFile(std::string path)
 	if (boost::filesystem::exists(m_Path)) {
 		try {
 			boost::property_tree::ini_parser::read_ini(m_Path.string(), m_PTreeOverrides);
-			for (auto& node : m_PTreeOverrides) {
-				m_PTreeMerged.put_child(node.first, node.second);
+			for (auto& topLevelNode : m_PTreeOverrides) {
+                auto& mergedTopLevelNode = m_PTreeMerged.find(topLevelNode.first);
+                for (auto& childOverrideNode : topLevelNode.second) {
+                    mergedTopLevelNode->second.put_child(childOverrideNode.first, childOverrideNode.second);
+                }
 			}
 		} catch (boost::property_tree::ptree_error& e) {
 			LOG_ERROR("Failed to parse \"%s\":\n%s", m_Path.filename().string().c_str(), e.what());

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());
+    }
+}