Refactored factory and component system.

Escape-the-Dawn.sln

@@ -4,6 +4,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Escape-the-Dawn", "Escape-the-Dawn\Escape-the-Dawn.vcxproj", "{FE405CFA-8FCE-4867-92CF-797E73B36482}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Tests", "Tests\Tests.vcxproj", "{B9A8F4AA-BE85-45EA-84DD-652D13DD22BE}"
+	ProjectSection(ProjectDependencies) = postProject
+		{A9755CAA-62DC-442D-B82C-F548546CFD38} = {A9755CAA-62DC-442D-B82C-F548546CFD38}
+	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Executable", "Executable\Executable.vcxproj", "{A9755CAA-62DC-442D-B82C-F548546CFD38}"
 EndProject

Escape-the-Dawn/AABB.cpp

@@ -1,46 +0,0 @@
-#include "AABB.h"
-
-AABB::AABB(glm::vec3 _volumeVector, glm::vec3 _origin)
-{
-	volumeVector = _volumeVector;
-	origin = _origin;
-
-	CreateBB();
-}
-
-void AABB::CreateBB()
-{
-	// Cube 1x1x1, centered on origin
-	GLfloat vertices[] = {
-		origin.x - 0.5, origin.y - 0.5, origin.z - 0.5, 1.0,
-		origin.x + 0.5, origin.y - 0.5, origin.z - 0.5, 1.0,
-		origin.x + 0.5, origin.y + 0.5, origin.z - 0.5, 1.0,
-		origin.x - 0.5, origin.y + 0.5, origin.z - 0.5, 1.0,
-		origin.x - 0.5, origin.y - 0.5, origin.z + 0.5, 1.0,
-		origin.x + 0.5, origin.y - 0.5, origin.z + 0.5, 1.0,
-		origin.x + 0.5, origin.y + 0.5, origin.z + 0.5, 1.0,
-		origin.x - 0.5, origin.y + 0.5, origin.z + 0.5, 1.0,
-	};
-	GLuint vbo_vertices;
-	glGenBuffers(1, &vbo_vertices);
-	glBindBuffer(GL_ARRAY_BUFFER, vbo_vertices);
-	glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
-	glBindBuffer(GL_ARRAY_BUFFER, 0);
-
-	GLushort elements[] = {
-		0, 1, 2, 3,
-		4, 5, 6, 7,
-		0, 4, 1, 5, 
-		2, 6, 3, 7
-	};
-	GLuint ibo_elements;
-	glGenBuffers(1, &ibo_elements);
-	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo_elements);
-	glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(elements), elements, GL_STATIC_DRAW);
-	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
-
-	glm::vec3 size = glm::vec3(glm::abs(origin.x-volumeVector.x), glm::abs(origin.y-volumeVector.y), glm::abs(origin.z-volumeVector.z));
-	glm::mat4 transform =  glm::translate(glm::mat4(1), origin) * glm::scale(glm::mat4(1), size);
-
-	for (int i = 0; i < )
-}

Escape-the-Dawn/AABB.h

@@ -1,23 +1,15 @@
 #ifndef AABB_h__
 #define AABB_h__
 
-#include <GL/glew.h>
+#include <glm/glm.hpp>
-//#define GLFW_INCLUDE_GLU
-//#include <GLFW/glfw3.h>
-//#include <glext.h>
-#include <glm/common.hpp>
-#include <glm/gtc/matrix_transform.hpp>
 
-class AABB
+struct AABB
 {
-public:
+	AABB(glm::vec3 origin, glm::vec3 volumeVector) 
-	AABB(glm::vec3, glm::vec3);
+		: Origin(origin), VolumeVector(volumeVector) { }
-	void CreateBB(void);
-
 	
-private:
+	glm::vec3 Origin;
-	glm::vec3 origin;
+	glm::vec3 VolumeVector; //The vector that defines the volume of the BB, it goes from the origin to a corner
-	glm::vec3 volumeVector; //The vector that defines the volume of the BB, it goes from one corner to the opposite one
-
 };
+
 #endif // !AABB_h__

Escape-the-Dawn/Component.h

@@ -1,7 +1,7 @@
 #ifndef Component_h__
 #define Component_h__
 
-#include "ComponentFactory.h"
+#include "Factory.h"
 #include "Entity.h"
 
 struct Component
@@ -9,4 +9,6 @@ struct Component
 	EntityID Entity;
 };
 
+//&static ComponentFactory componentFactory;
+
 #endif // Component_h__

Escape-the-Dawn/ComponentFactory.h

@@ -1,51 +0,0 @@
-#ifndef ComponentFactory_h__
-#define ComponentFactory_h__
-
-#include <string>
-#include <memory>
-#include <functional>
-#include <map>
-
-struct Component;
-
-#define REGISTER_COMPONENT(NAME, TYPE) \
-	static ComponentRegistrar<TYPE> registrar(NAME);
-
-template <typename T>
-class ComponentRegistrar
-{
-public:
-	ComponentRegistrar(std::string name)
-	{
-		ComponentFactory::Instance()->Register(name, [](void) -> std::shared_ptr<Component> { return std::shared_ptr<Component>(new T()); });
-	}
-};
-
-class ComponentFactory
-{
-public:
-	static ComponentFactory* Instance()
-	{
-		static ComponentFactory factory;
-		return &factory;
-	}
-
-	void Register(std::string name, std::function<std::shared_ptr<Component>(void)> factoryFunction)
-	{
-		m_FactoryFunctions[name] = factoryFunction;
-	}
-
-	std::shared_ptr<Component> Create(std::string name)
-	{
-		auto it = m_FactoryFunctions.find(name);
-		if (it != m_FactoryFunctions.end())
-			return it->second();
-		else
-			return nullptr;
-	}
-
-private:
-	std::map<std::string, std::function<std::shared_ptr<Component>(void)>> m_FactoryFunctions;
-};
-
-#endif // ComponentFactory_h__

Escape-the-Dawn/Components/Bounds.h

@@ -1,5 +1,5 @@
-#ifndef Bounds_h__
+#ifndef Components_Bounds_h__
-#define Bounds_h__
+#define Components_Bounds_h__
 
 #include "Component.h"
 #include "AABB.h"
@@ -7,11 +7,10 @@
 namespace Components
 {
 
-	struct Bounds : Component
+struct Bounds : Component
-	{
+{
-		AABB BB; //Axis Aligned Bounding Box
+	AABB BoundingBox; //Axis Aligned Bounding Box
-	};
+};
-	REGISTER_COMPONENT("Bounds", Bounds);
 
 }
-#endif // !Bounds_h__
+#endif // !Components_Bounds_h__

Escape-the-Dawn/Components/Camera.h

@@ -1,18 +1,17 @@
-#ifndef Camera_h__
+#ifndef Components_Camera_h__
-#define Camera_h__
+#define Components_Camera_h__
 
 #include "Component.h"
 
 namespace Components
 {
 
-	struct Camera : Component
+struct Camera : Component
-	{
+{
-		int FOV;
+	int FOV;
-		int NearClip;
+	int NearClip;
-		int FarClip;
+	int FarClip;
-	};
+};
-	REGISTER_COMPONENT("Camera", Camera);
 
 }
-#endif // !Camera_h__
+#endif // !Components_Camera_h__

Escape-the-Dawn/Components/Collision.h

@@ -1,18 +1,18 @@
-#ifndef Collision_h__
+#ifndef Components_Collision_h__
-#define Collision_h__
+#define Components_Collision_h__
 
+#include "Entity.h"
 #include "Component.h"
 #include <vector>
 
 namespace Components
 {
 
-	struct Collision : Component
+struct Collision : Component
-	{
+{
-		bool Phantom;
+	bool Phantom;
-		std::vector<int> CollidingEntities;
+	std::vector<EntityID> CollidingEntities;
-	};
+};
-	REGISTER_COMPONENT("Collision", Collision);
 
 }
-#endif // !Collision_h__
+#endif // !Components_Collision_h__

Escape-the-Dawn/Components/DirectionalLight.h

@@ -1,5 +1,5 @@
-#ifndef DirectionalLight_h__
+#ifndef Components_DirectionalLight_h__
-#define DirectionalLight_h__
+#define Components_DirectionalLight_h__
 
 #include "Component.h"
 #include "Color.h"
@@ -7,14 +7,13 @@
 namespace Components
 {
 
-	struct DirectionalLight : Component
+struct DirectionalLight : Component
-	{
+{
-		float Intensity;
+	float Intensity;
-		float MaxRange;
+	float MaxRange;
-		float SpecularIntensity;
+	float SpecularIntensity;
-		Color color;
+	Color Color;
-	};
+};
-	REGISTER_COMPONENT("DirectionalLight", DirectionalLight);
 
 }
-#endif // !DirectionalLight_h__
+#endif // !Components_DirectionalLight_h__

Escape-the-Dawn/Components/Input.h

@@ -1,5 +1,5 @@
-#ifndef Input_h__
+#ifndef Components_Input_h__
-#define Input_h__
+#define Components_Input_h__
 
 #include "Component.h"
 #include <GLFW/glfw3.h>
@@ -7,13 +7,13 @@
 namespace Components
 {
 
-	struct Input : Component
+struct Input : Component
-	{
+{
-		int KeyState[GLFW_KEY_LAST];
+	int KeyState[GLFW_KEY_LAST];
-		float MouseState[2];
+	float MouseState[2];
-		float dX, dY;
+	float dX, dY;
-	};
+};
-	REGISTER_COMPONENT("Input", Input);
 
 }
-#endif // !Input_h__
+
+#endif // !Components_Input_h__

Escape-the-Dawn/Components/Model.h

@@ -1,5 +1,7 @@
-#ifndef Model_h__
+#ifndef Components_Model_h__
-#define Model_h__
+#define Components_Model_h__
+
+#include <string>
 
 #include "Component.h"
 #include "Color.h"
@@ -7,12 +9,11 @@
 namespace Components
 {
 
-	struct Model : Component
+struct Model : Component
-	{
+{
-		std::string ModelName;
+	std::string ModelFile;
-		Color color;
+	Color Color;
-	};
+};
-	REGISTER_COMPONENT("Model", Model);
 
 }
-#endif // !Model_h__
+#endif // !Components_Model_h__

Escape-the-Dawn/Components/ParticleEmitter.h

@@ -1,5 +1,5 @@
-#ifndef ParticleEmitter_h__
+#ifndef Components_ParticleEmitter_h__
-#define ParticleEmitter_h__
+#define Components_ParticleEmitter_h__
 
 #include "Component.h"
 #include "Color.h"
@@ -8,19 +8,18 @@
 namespace Components
 {
 
-	struct ParticleEmitter : Component
+struct ParticleEmitter : Component
-	{
+{
-		int ParticleTemplate;
+	int ParticleTemplate;
-		float SpawnFrequency;
+	float SpawnFrequency;
-		int SpawnCount;
+	int SpawnCount;
-		std::vector<Color> ColorSpectrum;
+	std::vector<Color> ColorSpectrum;
-		std::vector<float> ScaleSpectrum;
+	std::vector<float> ScaleSpectrum;
-		float SpreadAngle;
+	float SpreadAngle;
-		float LifeTime;
+	float LifeTime;
-		std::vector<float[3]> VelocitySpectrum;
+	std::vector<float[3]> VelocitySpectrum;
-		std::vector<float[3]> AngularVelocitySpectrum;
+	std::vector<float[3]> AngularVelocitySpectrum;
-	};
+};
-	REGISTER_COMPONENT("ParticleEmitter", ParticleEmitter);
 
 }
-#endif // !ParticleEmitter_h__
+#endif // !Components_ParticleEmitter_h__

Escape-the-Dawn/Components/PointLight.h

@@ -1,5 +1,5 @@
-#ifndef PointLight_h__
+#ifndef Components_PointLight_h__
-#define PointLight_h__
+#define Components_PointLight_h__
 
 #include "Component.h"
 #include "Color.h"
@@ -7,14 +7,13 @@
 namespace Components
 {
 
-	struct PointLight : Component
+struct PointLight : Component
-	{
+{
-		float Intensity;
+	float Intensity;
-		float MaxRange;
+	float MaxRange;
-		float SpecularIntensity;
+	float SpecularIntensity;
-		Color color;
+	Color Color;
-	};
+};
-	REGISTER_COMPONENT("PointLight", PointLight);
 
 }
-#endif // !PointLight_h__
+#endif // !Components_PointLight_h__

Escape-the-Dawn/Components/PowerUp.h

@@ -1,16 +1,15 @@
-#ifndef PowerUp_h__
+#ifndef Components_PowerUp_h__
-#define PowerUp_h__
+#define Components_PowerUp_h__
 
 #include "Component.h"
 
 namespace Components
 {
 
-	struct PowerUp : Component
+struct PowerUp : Component
-	{
+{
-		int Speed;
+	float Speed;
-	};
+};
-	REGISTER_COMPONENT("PowerUp", PowerUp);
 
 }
-#endif // !PowerUp_h__
+#endif // !Components_PowerUp_h__

Escape-the-Dawn/Components/SoundEmitter.h

@@ -1,18 +1,19 @@
-#ifndef SoundEmitter_h__
+#ifndef Components_SoundEmitter_h__
-#define SoundEmitter_h__
+#define Components_SoundEmitter_h__
+
+#include <string>
 
 #include "Component.h"
 
 namespace Components
 {
 
-	struct SoundEmitter : Component
+struct SoundEmitter : Component
-	{
+{
-		std::string SoundFile;
+	std::string SoundFile;
-		float Volume;
+	float Volume;
-		float MaxRange;
+	float MaxRange;
-	};
+};
-	REGISTER_COMPONENT("SoundEmitter", SoundEmitter);
 
 }
-#endif // !SoundEmitter_h__
+#endif // !Components_SoundEmitter_h__

Escape-the-Dawn/Components/Sprite.h

@@ -1,5 +1,7 @@
-#ifndef Sprite_h__
+#ifndef Components_Sprite_h__
-#define Sprite_h__
+#define Components_Sprite_h__
+
+#include <string>
 
 #include "Component.h"
 #include "Color.h"
@@ -7,12 +9,11 @@
 namespace Components
 {
 
-	struct Sprite : Component
+struct Sprite : Component
-	{
+{
-		std::string SpriteFile;
+	std::string SpriteFile;
-		Color color;
+	Color Color;
-	};
+};
-	REGISTER_COMPONENT("Sprite", Sprite);
 
 }
-#endif // !Sprite_h__
+#endif // !Components_Sprite_h__

Escape-the-Dawn/Components/Stat.h

@@ -1,17 +1,16 @@
-#ifndef Stat_h__
+#ifndef Components_Stat_h__
-#define Stat_h__
+#define Components_Stat_h__
 
 #include "Component.h"
 
 namespace Components
 {
 
-	struct Stat : Component
+struct Stat : Component
-	{
+{
-		int Health;
+	float Health;
-		bool Destroyable;
+	bool Destroyable;
-	};
+};
-	REGISTER_COMPONENT("Stat", Stat);
 
 }
-#endif // !Stat_h__
+#endif // !Components_Stat_h__

Escape-the-Dawn/Components/Template.h

@@ -1,13 +1,12 @@
-#ifndef Template_h__
+#ifndef Components_Template_h__
-#define Template_h__
+#define Components_Template_h__
 
 #include "Component.h"
 
 namespace Components
 {
 
-	struct Template : Component { };
+struct Template : Component { };
-	REGISTER_COMPONENT("Template", Template);
 
 }
-#endif // !Template_h__
+#endif // !Components_Template_h__

Escape-the-Dawn/Components/Transform.h

@@ -0,0 +1,19 @@
+#ifndef Components_Transform_h__
+#define Components_Transform_h__
+
+#include "Component.h"
+#include <glm/gtc/quaternion.hpp>
+
+namespace Components
+{
+
+struct Transform : Component
+{
+	glm::vec3 Position;
+	glm::quat Orientation;
+	glm::vec3 Velocity;
+};
+
+}
+
+#endif // Components_Transform_h__

Escape-the-Dawn/Components/TransformComponent.h

@@ -1,19 +0,0 @@
-#ifndef Transform_h__
-#define Transform_h__
-
-#include "Component.h"
-#include <glm/gtc/quaternion.hpp>
-
-namespace Components
-{
-
-	struct Transform : Component
-	{
-		float Position[3];
-		glm::fquat qtrn; //Quaternion with floats
-		float Velocity[3];
-	};
-	REGISTER_COMPONENT("Transform", Transform);
-
-}
-#endif // Transform_h__

Escape-the-Dawn/Escape-the-Dawn.vcxproj

@@ -98,8 +98,6 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="Engine.h" />
-    <ClCompile Include="AABB.cpp" />
-    <ClCompile Include="main.cpp" />
     <ClCompile Include="Model.cpp" />
     <ClCompile Include="Renderer\Renderer.cpp" />
     <ClCompile Include="Systems\CollisionSystem.cpp" />
@@ -115,9 +113,9 @@
     <ClInclude Include="AABB.h" />
     <ClInclude Include="Color.h" />
     <ClInclude Include="Component.h" />
-    <ClInclude Include="ComponentFactory.h" />
-    <ClInclude Include="Components\Bounds.h" />
     <ClInclude Include="Components\Camera.h" />
+    <ClInclude Include="Factory.h" />
+    <ClInclude Include="Components\Bounds.h" />
     <ClInclude Include="Components\Collision.h" />
     <ClInclude Include="Components\DirectionalLight.h" />
     <ClInclude Include="Components\Input.h" />

Escape-the-Dawn/Escape-the-Dawn.vcxproj.filters

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClCompile Include="main.cpp" />
     <ClCompile Include="Renderer\Renderer.cpp" />
     <ClCompile Include="World.cpp" />
     <ClCompile Include="Systems\CollisionSystem.cpp">
@@ -27,14 +26,10 @@
     </ClCompile>
     <ClCompile Include="Model.cpp" />
     <ClCompile Include="Engine.h" />
-    <ClCompile Include="AABB.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Component.h" />
-    <ClInclude Include="ComponentFactory.h" />
     <ClInclude Include="Entity.h" />
-    <ClInclude Include="logging.h" />
-    <ClInclude Include="glerror.h" />
     <ClInclude Include="Renderer\Renderer.h" />
     <ClInclude Include="System.h" />
     <ClInclude Include="World.h" />
@@ -64,18 +59,6 @@
       <Filter>Components</Filter>
     </ClInclude>
     <ClInclude Include="ShaderProgram.h" />
-    <ClInclude Include="Components\Bounds.h">
-      <Filter>Components</Filter>
-    </ClInclude>
-    <ClInclude Include="Components\Camera.h">
-      <Filter>Components</Filter>
-    </ClInclude>
-    <ClInclude Include="Components\Collision.h">
-      <Filter>Components</Filter>
-    </ClInclude>
-    <ClInclude Include="Components\DirectionalLight.h">
-      <Filter>Components</Filter>
-    </ClInclude>
     <ClInclude Include="Components\Input.h">
       <Filter>Components</Filter>
     </ClInclude>
@@ -105,6 +88,25 @@
     </ClInclude>
     <ClInclude Include="AABB.h" />
     <ClInclude Include="Color.h" />
+    <ClInclude Include="Factory.h" />
+    <ClInclude Include="Components\DirectionalLight.h">
+      <Filter>Components</Filter>
+    </ClInclude>
+    <ClInclude Include="Components\Collision.h">
+      <Filter>Components</Filter>
+    </ClInclude>
+    <ClInclude Include="Components\Camera.h">
+      <Filter>Components</Filter>
+    </ClInclude>
+    <ClInclude Include="Components\Bounds.h">
+      <Filter>Components</Filter>
+    </ClInclude>
+    <ClInclude Include="glerror.h">
+      <Filter>Util</Filter>
+    </ClInclude>
+    <ClInclude Include="logging.h">
+      <Filter>Util</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="Shaders\Fragment.glsl">
@@ -124,5 +126,8 @@
     <Filter Include="Shaders">
       <UniqueIdentifier>{54f1eb6f-dc00-4e97-a3ef-ac255d755e2e}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Util">
+      <UniqueIdentifier>{d985d7a7-c041-46fe-ae03-aa40295a7aad}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
 </Project>

Escape-the-Dawn/Factory.h

@@ -0,0 +1,35 @@
+#ifndef ComponentFactory_h__
+#define ComponentFactory_h__
+
+#include <string>
+#include <memory>
+#include <functional>
+#include <map>
+
+template <typename T>
+class Factory
+{
+public:
+	void Register(std::string name, std::function<T(void)> factoryFunction)
+	{
+		m_FactoryFunctions[name] = factoryFunction;
+	}
+
+	T Create(std::string name)
+	{
+		auto it = m_FactoryFunctions.find(name);
+		if (it != m_FactoryFunctions.end()) {
+			return it->second();
+		} else {
+			return nullptr;
+		}
+	}
+
+private:
+	std::map<std::string, std::function<T(void)>> m_FactoryFunctions;
+};
+
+struct Component;
+class ComponentFactory : public Factory<Component*> { };
+
+#endif // ComponentFactory_h__

Escape-the-Dawn/Systems/CollisionSystem.h

@@ -4,8 +4,7 @@
 #include "System.h"
 #include "logging.h"
 
-#include "Components/TransformComponent.h"
+#include "Components/Transform.h"
-
 
 namespace Systems
 {

Escape-the-Dawn/Systems/InputSystem.cpp

@@ -0,0 +1,12 @@
+#include "InputSystem.h"
+#include "World.h"
+
+void Systems::InputSystem::Update(double dt, EntityID entity, EntityID parent)
+{
+	auto input = m_World->GetComponent<Components::Input>(entity, "Input");
+	if (input == nullptr)
+		return;
+
+
+}
+

Escape-the-Dawn/Systems/InputSystem.h

@@ -0,0 +1,27 @@
+#ifndef InputSystem_h__
+#define InputSystem_h__
+
+#include <GLFW/glfw3.h>
+
+#include "System.h"
+
+#include "Components/Input.h"
+
+namespace Systems
+{
+
+class InputSystem : public System
+{
+public:
+	InputSystem(World* world) 
+		: System(world) 
+	{
+
+	}
+
+	void Update(double dt, EntityID entity, EntityID parent) override;
+};
+
+}
+
+#endif // InputSystem_h__

Escape-the-Dawn/World.cpp

@@ -84,4 +84,19 @@ World::World()
 	m_LastEntityID = 0;
 
 	m_Systems.push_back(std::make_shared<Systems::Collision>(this));
-}
+
+	RegisterComponents();
+	RegisterSystems();
+}
+
+void World::RegisterComponents()
+{
+	m_ComponentFactory.Register("Transform", []() { return new Components::Transform(); });
+	m_ComponentFactory.Register("Input", []() { return new Components::Input(); });
+	m_ComponentFactory.Register("DirectionalLight", []() { return new Components::DirectionalLight(); });
+}
+
+void World::RegisterSystems()
+{
+
+}

Escape-the-Dawn/World.h

@@ -8,7 +8,11 @@
 
 #include "Entity.h"
 #include "Component.h"
-#include "ComponentFactory.h"
+#include "Factory.h"
+#include "Components/Transform.h"
+#include "Components/Input.h"
+#include "Components/DirectionalLight.h"
+
 #include "System.h"
 #include "Systems/CollisionSystem.h"
 
@@ -18,6 +22,9 @@ public:
 	World();
 	~World();
 
+	virtual void RegisterComponents();
+	virtual void RegisterSystems();
+
 	EntityID CreateEntity(EntityID parent = 0);
 
 	void RemoveEntity(EntityID entity);
@@ -29,12 +36,22 @@ public:
 	template <class T>
 	std::shared_ptr<T> AddComponent(EntityID entity, std::string componentType)
 	{
-		std::shared_ptr<T> component = std::static_pointer_cast<T>(ComponentFactory::Instance()->Create(componentType));
+		std::shared_ptr<T> component = std::shared_ptr<T>(static_cast<T*>(m_ComponentFactory.Create(componentType)));
+		if (component == nullptr) {
+			LOG_ERROR("Failed to attach invalid component \"%s\" to entity #%i", componentType.c_str(), entity);
+			return nullptr;
+		}
+
 		m_ComponentsOfType[componentType].push_back(component);
 		m_EntityComponents[entity][componentType] = component;
 		return component;
 	}
 
+	std::shared_ptr<Component> AddComponent(EntityID entity, std::string componentType)
+	{
+		return AddComponent<Component>(entity, componentType);
+	}
+
 	template <class T>
 	std::shared_ptr<T> GetComponent(EntityID entity, std::string componentType)
 	{
@@ -56,6 +73,7 @@ private:
 	// A bottom to top tree. A map of child entities to parent entities.
 	std::unordered_map<EntityID, EntityID> m_EntityParents;
 	
+	ComponentFactory m_ComponentFactory;
 	std::unordered_map<std::string, std::vector<std::shared_ptr<Component>>> m_ComponentsOfType;
 	std::unordered_map<EntityID, std::map<std::string, std::shared_ptr<Component>>> m_EntityComponents;
 	std::vector<std::shared_ptr<System>> m_Systems;

Tests/Tests.vcxproj

@@ -63,6 +63,13 @@
     </Link>
     <PostBuildEvent />
     <PostBuildEvent />
+    <PreBuildEvent />
+    <PostBuildEvent>
+      <Command>$(OutDir)$(TargetName)$(TargetExt) --log_level=test_suite</Command>
+    </PostBuildEvent>
+    <PostBuildEvent>
+      <Message>Running tests</Message>
+    </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
@@ -78,6 +85,13 @@
       <OptimizeReferences>true</OptimizeReferences>
       <AdditionalDependencies>boost_unit_test_framework-vc110-1_55.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <PreBuildEvent />
+    <PostBuildEvent>
+      <Command>$(OutDir)$(TargetName)$(TargetExt) --log_level=test_suite</Command>
+    </PostBuildEvent>
+    <PostBuildEvent>
+      <Message>Running tests</Message>
+    </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="main.cpp" />

Tests/main.cpp

@@ -1,5 +1,7 @@
+#include "logging.h"
+
 #include "World.h"
-#include "Components/TransformComponent.h"
+#include "Components/Transform.h"
 
 #define BOOST_TEST_MODULE World
 #define BOOST_TEST_DYN_LINK
@@ -50,4 +52,13 @@ BOOST_AUTO_TEST_CASE(Recycling)
 	world.RemoveEntity(ent11);
 	EntityID ent12 = world.CreateEntity(); // 1
 	BOOST_REQUIRE(ent11 == ent12);
+}
+
+BOOST_AUTO_TEST_CASE(ComponentCreation)
+{
+	World world;
+
+	EntityID ent = world.CreateEntity();
+	BOOST_CHECK(world.AddComponent(ent, "Transform") != nullptr);
+	BOOST_CHECK(world.AddComponent(ent, "Input") != nullptr);
 }