Basic Entity Components implementation

BarinkEngine/src/AssetManager/ModelImporter.h

@@ -10,7 +10,7 @@
 #include <assimp/scene.h>
 #include <assimp/postprocess.h> 
 #include <string>
-#include "../Scene/SceneNodeTypes.h"
+#include "../Scene/TransformTree/SceneNodeTypes.h"
 
 
 void ProcessVertices(aiMesh* mesh, std::vector<BarinkEngine::Vertex>& out_vertices);

BarinkEngine/src/BarinkEngine.cpp

@@ -6,7 +6,6 @@ int main(int argc, char* argv[]) {
 	// Setup performance sampler 
 	PerfomanceSamplerInit();
 
-
 	// Startup services 
 	BarinkWindow MainWindow =  BarinkWindow(800, 600);
 
@@ -14,27 +13,19 @@ int main(int argc, char* argv[]) {
 	InputSystem = BarinkEngine::InputManager();
 	ES = EngineStatistics();
 
-
 	InputSystem.attach(&MainWindow);
 
 	GUIManager GUISystem = GUIManager(&MainWindow);
 
-
 	glEnable(GL_DEPTH_TEST);
 
-
-
 	// First call to setup game
 	Start();
 
-
-	
 	// Runtime loop
 	while (!MainWindow.WindowShouldClose()) {
-
 		SamplePerformance();
 
-
 		// Execute main logic 
 		InputSystem.PollEvents();
 		
@@ -47,11 +38,9 @@ int main(int argc, char* argv[]) {
 		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 	}
 
-
 	// Shutdown game
 	Stop();
 
-
 	// Shutdown Services
 
 	return 0;

BarinkEngine/src/BarinkEngine.h

@@ -1,8 +1,8 @@
 #pragma once
 #include "glm/glm.hpp"
-#include "graphics/Shader.h"
+#include "graphics/Primitives/Shader.h"
 #include "Platform/Window.h"
-#include "graphics/Texture.h"
+#include "graphics/Primitives/Texture.h"
 #include "graphics/Primitives/Camera.h"
 #include "graphics/Renderable.h"
 #include "Graphics/Renderer.h"
@@ -13,7 +13,7 @@
 #include "Input/InputManager.h"
 #include "Graphics/Renderer.h"
 #include "GUI/GUIManager.h"
-#include "Scene.h"
+#include "Scene/Scene.h"
 #include "PerfCounter.h"
 
 

BarinkEngine/src/Graphics/GPUBucket.h

@@ -1,6 +1,6 @@
 #pragma once
-#include "VertexArray.h"
+#include "Memory/VertexArray.h"
-#include "Buffer.h"
+#include "Memory/Buffer.h"
 #include "Primitives/Mesh.h"
 #include "Primitives/Material.h"
 #include <glm/glm.hpp>

BarinkEngine/src/Graphics/Primitives/Material.h

@@ -1,7 +1,7 @@
 #pragma once
 #include <glm/glm.hpp>
 #include <string>
-#include "../Shader.h"
+#include "Shader.h"
 
 class Material {
 public:

BarinkEngine/src/Graphics/Primitives/Texture.cpp

@@ -2,7 +2,7 @@
 #include <glad/glad.h>
 #include <GLFW/glfw3.h>
 #define STB_IMAGE_IMPLEMENTATION
-#include "stb_image.h"
+#include "../stb_image.h"
 #include <iostream>
 
 Texture::Texture(const std::string texturePath) {

BarinkEngine/src/Graphics/Renderable.h

@@ -1,8 +1,8 @@
 #pragma once
 #include "Primitives/Mesh.h"
 #include "Primitives/Material.h"
-#include "Texture.h"
+#include "Primitives/Texture.h"
-#include "../Scene.h"
+#include "../Scene/Scene.h"
 
 namespace BarinkEngine {
 

BarinkEngine/src/Graphics/Renderer.cpp

@@ -6,125 +6,18 @@ glm::mat4 projection = glm::perspective(glm::radians(cam.Zoom), (800.0f / 600.0f
 
 BarinkEngine::Renderer::Renderer()
 {
-	models = std::vector<GPU_Bucket*>();
 }
 
 BarinkEngine::Renderer::~Renderer()
 {
-	// CleanUp!
-
-	// For each model submitted 
-	for ( auto packet : models )
-	{
-		delete packet;
-	}
-
-	// glDeleteBuffers(1, &UV_id);
 }
 
 
-void BarinkEngine::Renderer::Render() 
+void BarinkEngine::Renderer::Render(Scene& scene)
-{
+{}
-	Angle += 0.0001f;
-
-	for (auto model : models) {
-		// Push matrices etc ....
-		model->vertexarray.Bind();
-
-		model->elementBuffer.Bind(true);
-
-		if (model->material == nullptr) {
-			std::cout << "No material attached!" << std::endl;
-			//			continue; //NOTE: Or use some default Material 
-		}
-		else {
-			model->material->shader.Use();
-			model->material->Apply();
-
-			model->material->shader.setUniformVec3("Color", model->material->Color);
 
 
-			model->material->shader.setUniformMat4("M", glm::rotate(glm::mat4(), Angle, glm::vec3(0.5f, 0.5f, 0.0f)));
-			model->material->shader.setUniformMat4("V", cam.GetViewMatrix());
-			model->material->shader.setUniformMat4("P", projection);
-			// Update perf counters 
-			ES.verts = model->mesh->vertices.size();
-			ES.DC++;
 
-			glDrawElements(GL_TRIANGLES,
+void Render(Framebuffer& framebuffer) {
-				static_cast<unsigned int>(model->mesh->elements.size()),
-				GL_UNSIGNED_INT,
-				NULL
-			);
-		}
-
-
-		model->vertexarray.Unbind();
-
-	}
-}
-
-
-void BarinkEngine::Renderer::Render(Framebuffer& framebuffer)
-{
-	glBindFramebuffer(GL_FRAMEBUFFER, framebuffer.GetId());
-	glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
-	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-	Angle += 0.0001f;
-	
-	for (auto model : models) {
-		// Push matrices etc ....
-		model->vertexarray.Bind();
-
-		model->elementBuffer.Bind(true);
-		
-		if (model->material == nullptr) {
-			std::cout << "No material attached!" << std::endl;
-//			continue; //NOTE: Or use some default Material 
-		}
-		else {
-			model->material->shader.Use();
-			model->material->Apply();
-
-			model->material->shader.setUniformVec3("Color", model->material->Color);
-			
-			
-			model->material->shader.setUniformMat4("M", glm::rotate(glm::mat4(), Angle, glm::vec3(0.5f, 0.5f, 0.0f)));
-			model->material->shader.setUniformMat4("V", cam.GetViewMatrix());
-			model->material->shader.setUniformMat4("P", projection);
-			// Update perf counters 
-			ES.verts = model->mesh->vertices.size();
-			ES.DC++;
-
-			glDrawElements(GL_TRIANGLES,
-				static_cast<unsigned int>(model->mesh->elements.size()),
-				GL_UNSIGNED_INT,
-				NULL
-			);
-		}
-		
-	
-		model->vertexarray.Unbind();
-
-	}
-
-
-	glBindFramebuffer(GL_FRAMEBUFFER, 0);
-}
-
-
-// Upload data to cpu and add object to render list
-void BarinkEngine::Renderer::Submit(Renderable* model)
-{
-	// Upload mesh data to gpu for render  
-	
-	GPU_Bucket* bucket = new GPU_Bucket();
-
-	bucket->material = model->material;
-	
-	bucket->Upload(*model->mesh);
-	
-	models.push_back(bucket);
 
 }

BarinkEngine/src/Graphics/Renderer.h

@@ -1,6 +1,6 @@
 #pragma once
 #include <vector>
-
+#include <iostream>
 #include <glm/gtc/matrix_transform.hpp>
 #include "glad/glad.h"
 #include "GLFW/glfw3.h"
@@ -10,7 +10,8 @@
 #include "Primitives/Camera.h"
 #include "Renderable.h"
 #include "GPUBucket.h"
-#include "Framebuffer.h"
+#include "Memory/Framebuffer.h"
+#include "../Scene/Components.h"
 
 namespace BarinkEngine {
 
@@ -19,14 +20,7 @@ namespace BarinkEngine {
 		Renderer();
 		~Renderer();
 
-
+		void Render(Scene& scene );
-		void Render();
 		void Render(Framebuffer& framebuffer);
-
-		void Submit(Renderable* model);
-
-	private:
-		std::vector<GPU_Bucket*> models;
-
 	};
 }

BarinkEngine/src/Platform/Window.cpp

@@ -11,7 +11,8 @@ bool BarinkWindow::InitGLFW(){
 }
 
 BarinkWindow::BarinkWindow(const int width, const int height) :
-Width(width), Height(height), FullScreen(false){
+Width(width), Height(height), FullScreen(false)
+{
 	if (InitGLFW()==false) {
 		exit(-1);
 	}
@@ -22,7 +23,7 @@ Width(width), Height(height), FullScreen(false){
 	// glfwWindowHint(GLFW_DECORATED, GLFW_FALSE);
 	// glfwWindowHint(GLFW_MAXIMIZED, GLFW_TRUE);
 	// Disable resizing the window
-	glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
+	//glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
 
 
 	window = glfwCreateWindow(Width, Height, "BarinkEngine", NULL, NULL);

BarinkEngine/src/Scene.cpp

@@ -1,66 +0,0 @@
-#include "Scene.h"
-#include "Scene.h"
-#include "Scene/Node.h"
-void DeleteSubGraph(Node* tree);
-
-Scene::Scene(const std::string& sceneName)
-{
-	// Create a root node
-	root = new Group(sceneName);
-}
-
-Scene::~Scene()
-{
-	// Delete all nodes in the graph.
-	DeleteSubGraph(root);
-
-}
-
-
-Node* SearchInChildren(Node* root, const std::string name ) {
-	
-	if (root->name == name)
-		return root;
-
-	Node* found = nullptr;
-	for (auto child : root->children) {
-		found = SearchInChildren(child, name);
-	}
-	return found;
-}
-
-
-Node& Scene::GetSceneNode(std::string name)
-{
-	return *SearchInChildren(root, name);
-}
-
-
-
-Node& Scene::GetRoot()
-{
-	return *root;
-}
-
-
-
-void Node::addChild(Node& node)
-{
-	children.push_back(&node);
-}
-
-
-void DeleteSubGraph(Node* tree)
-{
-	if (tree->children.size() == 0) {
-		delete tree;
-		return;
-	}
-
-	for (auto child : tree->children) {
-		if (child->children.size() > 0) {
-			DeleteSubGraph(child);
-		}
-	}
-
-}

BarinkEngine/src/Scene.h

@@ -1,23 +0,0 @@
-#pragma once
-#include <string>
-#include <vector>
-
-#include "Graphics/Transform.h"
-#include "Scene/Node.h"
-/*
-*	Scene should be a description of a game world 
-*/
-class Scene {
-
-public:
-	Node& GetSceneNode(std::string);
-	Node& GetRoot();
-
-	Scene(const std::string& sceneName = "Default Scene");
-	~Scene();
-
-private:
-	Node* root;
-		
-};
-

BarinkEngine/src/Scene/Components.h

@@ -0,0 +1,27 @@
+#pragma once
+#include <glm/glm.hpp>
+
+namespace BarinkEngine {
+
+	struct TransformComponent {
+		glm::mat4& transform = glm::mat4(1.0f);
+
+	};
+
+
+	struct CameraComponent {
+		glm::mat4& view;
+
+	};
+
+	struct Render3DComponent {
+		unsigned int VAO;
+		unsigned int IBO;
+
+	};
+
+	struct Render2DComponent {
+		glm::vec3 Colour;
+		
+	};
+};

BarinkEngine/src/Scene/Entity.cpp

@@ -0,0 +1,7 @@
+#include "Entity.h"
+
+Entity::Entity(entt::entity e, Scene* scene)
+	: m_entity(e), m_scene(scene)
+{
+}
+

BarinkEngine/src/Scene/Entity.h

@@ -0,0 +1,22 @@
+#pragma once
+#include <entt/entt.hpp>
+class Scene;
+
+class Entity {
+public:
+	Entity() = default;
+	Entity(entt::entity e, Scene* scene);
+	Entity(const Entity& other) = default;
+
+
+	template<class T >
+	T AddComponent() {
+		return m_scene->m_registry.emplace<T>(m_entity);
+	}
+
+private:
+	entt::entity m_entity;
+	Scene* m_scene;
+
+};
+

BarinkEngine/src/Scene/Scene.cpp

@@ -0,0 +1,14 @@
+#include "Scene.h"
+#include "Entity.h"
+Scene::Scene()
+{
+}
+
+Scene::~Scene()
+{}
+
+Entity Scene::AddEntity(std::string& name)
+{
+	return { m_registry.create(), this };
+}
+

BarinkEngine/src/Scene/Scene.h

@@ -0,0 +1,22 @@
+#pragma once
+#include <string>
+#include <entt/entt.hpp>
+class Entity;
+
+class Scene
+{
+public:
+	Scene();
+	~Scene();
+
+	Entity AddEntity(std::string& name);
+
+	entt::registry& getReg() { return m_registry; }
+
+private:
+	entt::registry m_registry;
+
+	friend class Entity;
+};
+
+

BarinkEngine/src/Scene/SceneBuilder.h

@@ -1,15 +0,0 @@
-#pragma once
-#include "Graphics/Renderable.h"
-#include "Scene/SceneNodeTypes.h"
-
-#include <glm/glm.hpp>
-#include "../../src/Scene/SceneNodeTypes.cpp"
-/*
-* Define a helper class to more easily build a proper scene 
-*/
-static class SceneBuilder {
-
-	static Group* AddGroup(std::string name);
-	static BarinkEngine::SceneObject* AddVisual(std::string name, BarinkEngine::Renderable& object, glm::vec3 position );
-
-};

BarinkEngine/src/Scene/SceneManager.cpp

@@ -1,22 +0,0 @@
-#include "SceneManager.h"
-
-Scene* SceneManager::CreateScene(const std::string& name) 
-{
-	/*
-	Scenes = std::map<std::string, Scene*>();
-	SceneManager::Scenes[name] = new Scene(name);
-	*/
-
-	return new Scene(name);
-}
-
-Scene& SceneManager::GetScene(const std::string& name) 
-{
-	return Scene();
-	//return *SceneManager::Scenes[name];
-}
-
-void SceneManager::LoadScene( Scene& scene) 
-{
-	//SceneManager::CurrentScene = &scene;
-}

BarinkEngine/src/Scene/SceneManager.h

@@ -1,17 +0,0 @@
-#pragma once
-#include <string>
-#include <map>
-#include "../Scene.h"
-class SceneManager {
-
-public:
-	static Scene* CreateScene(const std::string& name );
-	static Scene& GetScene(const std::string& name);
-
-	static void LoadScene(Scene& scene);
-
-private:
-	static Scene* CurrentScene;
-	static std::map<std::string, Scene*> Scenes;
-
-};

BarinkEngine/src/Scene/TransformTree/Node.h

@@ -1,7 +1,7 @@
 #pragma once
 #include <string>
 #include <vector>
-#include "../Graphics/Transform.h"
+#include "../../Graphics/Transform.h"
 
 class Node {
 	public:

BarinkEngine/src/Scene/TransformTree/SceneNodeTypes.h

@@ -1,6 +1,6 @@
 #pragma once
-#include "../Graphics/Primitives/Camera.h"
+#include "../../Graphics/Primitives/Camera.h"
-#include "../Graphics/Renderable.h"
+#include "../../Graphics/Renderable.h"
 #include "Node.h"
 
 namespace BarinkEngine {

SandboxApp/include/Util.h

@@ -1,6 +0,0 @@
-#pragma once
-#include "../../BarinkEngine/src/BarinkEngine.h"
-
-void PrintSceneTree(Node& node, int depth);
-
-glm::mat4 CalculateModelMat(Transform& transform);

SandboxApp/premake5.lua

@@ -25,8 +25,8 @@ includedirs{
   "./../libs/glm",
   "./../libs/ImGui",
   
+  "../libs/entt/src",
 
-  "./include"
 
 }
 
@@ -35,6 +35,6 @@ libdirs {
 }
 
 files { 
-  "./include/*.h",
+  "./src/*.h",
   "./src/*.cpp"
 }

SandboxApp/src/GUI.cpp

@@ -68,8 +68,8 @@ void SceneView(Framebuffer& framebuffer ) {
     ImGui::End();
 }
 
-
+/*
-void transformWindow(Transform& transform, std::string PanelName) {
+* void transformWindow(Transform& transform, std::string PanelName) {
     ImGui::Begin(PanelName.c_str());
     ImGui::InputFloat3("Position:", (float*)&transform.Position[0]);
     ImGui::InputFloat3("Rotation:", (float*)&transform.Rotation[0]);
@@ -78,6 +78,8 @@ void transformWindow(Transform& transform, std::string PanelName) {
 
 }
 
+*/
+
 void materialWindow(Material& material, std::string PanelName) {
     ImGui::Begin(PanelName.c_str());
     ImGui::ColorPicker3("Color:", &material.Color[0]);

SandboxApp/src/GUI.h

@@ -1,11 +1,11 @@
 #pragma once
 #include "imgui.h"
 #include "../../BarinkEngine/src/BarinkEngine.h"
-#include "../../BarinkEngine/src/Graphics/Framebuffer.h"
+#include "../../BarinkEngine/src/Graphics/Memory/Framebuffer.h"
 
 void CameraTool();
 void ScriptingTool(char* code);
-void transformWindow(Transform& transform, std::string PanelName);
+///void transformWindow(Transform& transform, std::string PanelName);
 void materialWindow(Material& material, std::string PanelName);
 void SceneExplorer(const std::string& PanelName);
 void SceneView(Framebuffer& framebuffer);

SandboxApp/src/Sandbox.cpp

@@ -1,56 +1,43 @@
 #include "../../BarinkEngine/src/BarinkEngine.h"
-#include "../../BarinkEngine/src/Scene/SceneManager.h"
+#include "../../BarinkEngine/src/Scene/Components.h"
-#include "../../BarinkEngine/src/Scene/SceneNodeTypes.h"
+#include "../../BarinkEngine/src/Scene/Scene.h"
-#include "../../BarinkEngine/src/AssetManager/ModelImporter.h"
+#include "../../BarinkEngine/src/Scene/Entity.h"
-#include "../../BarinkEngine/src/Graphics/Framebuffer.h"
 #include <imgui.h>
 #include "GUI.h"
 #include "Util.h"
-
+#include <entt/entt.hpp>
 /*
 * Define globals
 */
-Shader* shader;
+//Shader* shader;
-
-char* code = new char[254];
-
 const std::string vertexShaderSource = "build/Debug/test.vs";
 const std::string fragmentShaderSource = "build/Debug/test.fs";
 
-BarinkEngine::ModelImporter* MI = new BarinkEngine::ModelImporter();
+Scene scene;
-Scene* Level1;
-BarinkEngine::SceneObject* cube;
 /*
 * Runs once at startup 
 * - USe to initialize the game/sandbox/demo
 */
 void Start() {
+   // shader = new Shader(vertexShaderSource, fragmentShaderSource);
    
-    // Create a level and load it as the current level
+    auto cube  = scene.AddEntity((std::string&)"cube");
-    std::string levelName("Test Level");
+    auto transform = cube.AddComponent<BarinkEngine::TransformComponent>();
-    Level1 = SceneManager::CreateScene(levelName);
+    auto render3DComponent = cube.AddComponent<BarinkEngine::Render3DComponent>();
-    SceneManager::LoadScene(*Level1);
 
-    shader = new Shader(vertexShaderSource, fragmentShaderSource);
+    auto cube2 = scene.AddEntity((std::string&)"cube1");
 
-    // Create a cube node
+    auto cube3 = scene.AddEntity((std::string&)"cube2");
+    auto Transform2 = cube3.AddComponent<BarinkEngine::TransformComponent>();
+    auto render3DComponent2 = cube3.AddComponent<BarinkEngine::Render3DComponent>();
 
-    cube = MI->Import("build/Debug/Models/cube.obj");
-    cube->renderable->material = new Material(*shader);
-    cube->renderable->material->Color = glm::vec3(1.0f, 0.0f, 0.0f);
     
-    // What is in cube now ??    
+    // Run over every transform component
-    std::cout <<  "mesh vertices: " << cube->renderable->mesh->vertices.size() << std::endl;
+    auto view = scene.getReg().view<BarinkEngine::TransformComponent, BarinkEngine::Render3DComponent>();
-    std::cout << "mesh elements: " << cube->renderable->mesh->elements.size() << std::endl;
+    view.each([](auto entity, auto& transform) {
+        std::cout << "Found a transform !" << std::endl;
+    });
     
-    Level1->GetRoot().addChild(*cube);
-
-    memset(code, '\0', 254);
-   
-    // TODO: Move to runtime/ Engine 
-    // NOTE: Submits should later be done through walking the sceneTree
-   
-    renderer.Submit(cube->renderable);
     
 }
 
@@ -71,7 +58,7 @@ void ImmediateGraphicsDraw()
 void Update()
 {
     
-    renderer.Render();
+    renderer.Render(scene);
    
 }
 
@@ -81,6 +68,4 @@ void Update()
 */
 void Stop()
 {
-    delete MI;
-    delete shader;
 }

SandboxApp/src/Util.cpp

@@ -1,6 +1,7 @@
 #include "Util.h"
 
-void PrintSceneTree(Node& node, int depth) {
+/*
+* void PrintSceneTree(Node& node, int depth) {
     // Indent name based on depth
     std::cout << " ";
     for (int i = 0; i < depth; i++) {
@@ -30,3 +31,5 @@ glm::mat4 CalculateModelMat(Transform& transform) {
     return tran * rot * scale;
 }
 
+*/
+

SandboxApp/src/Util.h

@@ -0,0 +1,6 @@
+#pragma once
+#include "../../BarinkEngine/src/BarinkEngine.h"
+
+//void PrintSceneTree(Node& node, int depth);
+
+//glm::mat4 CalculateModelMat(Transform& transform);