Moving to a single renderer instance system

Seperated Sanbox premake config from the main premake file.

.gitmodules

@@ -4,12 +4,14 @@
 [submodule "glm"]
 	path = libs/glm
 	url = https://github.com/nigelbarink/glm.git
+	ignore = untracked
 [submodule "spdlog"]
 	path = libs/spdlog
 	url = https://github.com/nigelbarink/spdlog.git
 [submodule "tinygltf"]
 	path = libs/tinygltf
 	url = https://github.com/syoyo/tinygltf.git
+	ignore = untracked
 [submodule "GorrillaAudio"]
 	path = libs/GorillaAudio
 	url = https://github.com/mewspring/gorilla-audio.git
@@ -22,6 +24,7 @@
 [submodule "libs/steam-audio"]
 	path = libs/steam-audio
 	url = https://github.com/ValveSoftware/steam-audio.git
+	ignore = untracked
 [submodule "libs/physx"]
 	path = libs/physx
 	url = https://git.barink.dev/Nigel/PhysX.git

.vscode/settings.json

@@ -1,6 +0,0 @@
-{
-    "cmake.configureOnOpen": true,
-    "files.associations": {
-        "iosfwd": "cpp"
-    }
-}

BarinkEngine/Include/AssetManager/ModelImporter.h

@@ -1,7 +1,8 @@
 #pragma once
-#define TINYGLTF_IMPLEMENTATION
 #define STB_IMAGE_IMPLEMENTATION
 #define STB_IMAGE_WRITE_IMPLEMENTATION
+
+#define TINYGLTF_IMPLEMENTATION
 #define TINYGLTF_NO_EXTERNAL_IMAGE
 
 #include "Graphics/Mesh.h"
@@ -9,18 +10,26 @@
 #include <assimp/scene.h>
 #include <assimp/postprocess.h> 
 #include <string>
+#include "Scene/SceneNodeTypes.h"
+
+
+void ProcessVertices(aiMesh* mesh, std::vector<BarinkEngine::Vertex>& out_vertices);
+void ProcessIndices(aiMesh* mesh, std::vector<unsigned int>& out_indices);
+
+namespace BarinkEngine {
+	class ModelImporter {
+
+	public:
+
+		BarinkEngine::SceneObject* Import(const std::string path);
+
+
+	private:
 
-class ModelImporter {
-private:
-	void ImportFBX(std::string path); 
-	void ImportBlend(std::string path);
-	void ImportGLTF(std::string path);
-	void ImportOBJ(std::string path);
 		static BarinkEngine::Mesh ModelImporter::processMesh(aiMesh* mesh, const aiScene* scene);
 		static std::vector<BarinkEngine::Mesh> ModelImporter::processNode(aiNode* node, const aiScene* scene);
 
-public:
-	void Import(std::string path);
 
-	static std::vector<BarinkEngine::Mesh> Test();
-};
+
+	};
+}

BarinkEngine/Include/BarinkEngine.h

@@ -5,6 +5,7 @@
 #include "graphics/Texture.h"
 #include "graphics/Camera.h"
 #include "graphics/Renderable.h"
+#include "Graphics/Renderer.h"
 #include "Graphics/Material.h"
 
 #include "spdlog/spdlog.h"
@@ -15,10 +16,7 @@
 #include "Scene.h"
 #include "PerfCounter.h"
 
-
 extern void Start();
 extern void Update();
 extern void ImmediateGraphicsDraw();
 extern void Stop();
-
-extern BarinkEngine::InputManager InputSystem;

BarinkEngine/Include/ECS/Component.h

@@ -0,0 +1,7 @@
+#pragma once
+namespace BECS {
+
+	struct Component {
+
+	};
+}

BarinkEngine/Include/ECS/Entity.h

@@ -0,0 +1,13 @@
+#pragma once
+#include <vector>
+#include "Component.h"
+
+
+namespace BECS {
+
+	typedef unsigned long int Entity;
+
+
+
+
+}

BarinkEngine/Include/ECS/System.h

@@ -0,0 +1,7 @@
+#pragma once
+namespace BECS {
+
+	struct System {
+
+	};
+}

BarinkEngine/Include/ECS/World.h

@@ -0,0 +1,17 @@
+#pragma once
+#include "System.h"
+#include <vector>
+#include "Component.h"
+#include "Entity.h"
+
+
+namespace BECS {
+	struct World {
+	
+	private:
+		std::vector<System> systems;
+		std::vector<Component> components;
+		std::vector<Entity> entities;
+
+	};
+}

BarinkEngine/Include/EventSystem/EventListener.cpp

@@ -1,5 +0,0 @@
-#include "EventListener.h"
-
-void EventListener::ReceiveEvent(Event& incident)
-{
-}

BarinkEngine/Include/EventSystem/EventListener.h

@@ -1,8 +1,12 @@
 #pragma once 
-#include "Event.h"
 #include <list>
+#include <iostream>
+
+#include "spdlog/spdlog.h"
+#include "Event.h"
+
 class EventListener{
   public: 
-    virtual void ReceiveEvent(Event& incident);
+    virtual void ReceiveEvent(Event& incident) = 0 ;
 
 };

BarinkEngine/Include/Graphics/Buffer.h

@@ -1,6 +1,6 @@
 #pragma once
 #include <glad/glad.h>
-class Buffer {
+class GpuBuffer {
 private:
 	unsigned int id;
 public:

BarinkEngine/Include/Graphics/GPUBucket.h

@@ -0,0 +1,30 @@
+#pragma once
+#include "VertexArray.h"
+#include "Buffer.h"
+#include "Mesh.h"
+#include "Material.h"
+
+namespace BarinkEngine {
+
+	class GPU_Bucket {
+	public:
+
+		GPU_Bucket();
+		~GPU_Bucket();
+
+		void Upload(const Mesh& renderable);
+		
+		GpuBuffer vertexBuffer;
+		GpuBuffer elementBuffer;
+		VertexArray vertexarray;
+
+		const Mesh* mesh;
+		const Material* material;
+
+	private : 
+		unsigned int uv_id;
+
+	};
+	
+};
+

BarinkEngine/Include/Graphics/Material.h

@@ -7,7 +7,7 @@ class Material {
 public:
 	Material(const Shader& shader);
 	
-	void Apply();
+	void Apply()const;
 	
 	glm::vec3 Color;
 

BarinkEngine/Include/Graphics/Mesh.h

@@ -1,20 +1,12 @@
 #pragma once
 #include <vector>
 #include <glm/glm.hpp>
+#include "Vertex.h"
 
-namespace BarinkEngine{
-
-
-	struct Vertex {
-		glm::vec3 vertices;
-		glm::vec2 uv;
-	};
-
-	class Mesh {
-	public:
+namespace BarinkEngine {
+	struct Mesh {
 		std::vector<Vertex> vertices;
-		std::vector<unsigned int > elements;
-	
+		std::vector<unsigned int> elements;
 	};
 
 }

BarinkEngine/Include/Graphics/RenderSurface.h

@@ -20,8 +20,8 @@ private:
 	std::vector<unsigned int > indices;
 
 
-	Buffer vertexBuffer;
-	Buffer elementBuffer;
+	GpuBuffer vertexBuffer;
+	GpuBuffer elementBuffer;
 
 	VertexArray VAO;
 

BarinkEngine/Include/Graphics/Renderable.h

@@ -1,37 +1,14 @@
 #pragma once
-#include <vector>
 #include "Mesh.h"
-#include "Buffer.h"
 #include "Material.h"
 #include "Texture.h"
-#include "VertexArray.h"
 #include "Scene.h"
 
+namespace BarinkEngine {
 
-class Renderable  : public SceneNode {
-public:
-	/*
-	* NOTE: Should combine into a Mesh!!
-	*/
-	Buffer vertexBuffer;
-	Buffer elementBuffer;
-	//Buffer uv;
-	VertexArray VAO;
-
-
-	GLuint UV_id;
+	struct  Renderable {
+		BarinkEngine::Mesh* mesh;
 		Material* material;
 		Texture* texture;
-
-	
-	Shader* shader;
-
-	~Renderable();
-
-	static Renderable* Load();
-	void Draw();
-
-private:
-	std::vector<BarinkEngine::Mesh> meshes;
-	Renderable();
-};
+	};
+}

BarinkEngine/Include/Graphics/Renderer.h

@@ -1,8 +1,16 @@
 #pragma once
-#include "Graphics/Renderable.h"
-
 #include <vector>
 
+#include <glm/gtc/matrix_transform.hpp>
+#include "glad/glad.h"
+#include "GLFW/glfw3.h"
+
+#include "PerfCounter.h"
+
+#include "Graphics/Camera.h"
+#include "Graphics/Renderable.h"
+#include "Graphics/GPUBucket.h"
+
 namespace BarinkEngine {
 
 	class Renderer {
@@ -15,7 +23,7 @@ namespace BarinkEngine {
 		void Submit(Renderable* model);
 
 	private:
-		std::vector<Renderable*> models;
+		std::vector<GPU_Bucket*> models;
 
 	};
 }

BarinkEngine/Include/Graphics/Shader.h

@@ -14,7 +14,7 @@ class Shader {
         char* readFile (const char* filePath);
     public:
         Shader(const std::string vertexShaderPath, const std::string fragmentShaderPath);
-        void Use();
+        void Use() const;
         void setUniformMat4(std::string uniformName, glm::mat4 matrix4)const;
         void setUniformVec4(std::string uniformName, glm::vec4 vector4)const;
         void setUniformVec3(std::string uniformName, glm::vec3 vector3)const;

BarinkEngine/Include/Graphics/Transform.h

@@ -0,0 +1,11 @@
+#pragma once
+#include <glm/glm.hpp>
+struct Transform {
+	glm::vec3 Position;
+	glm::vec3 Rotation;
+	glm::vec3 Scale;
+
+	glm::mat4 ModelMatrix;
+};
+
+

BarinkEngine/Include/Graphics/Vertex.h

@@ -0,0 +1,9 @@
+#pragma once
+#include <glm/glm.hpp>
+
+namespace BarinkEngine {
+	struct Vertex {
+		glm::vec3 vertices;
+		glm::vec2 uv;
+	};
+}

BarinkEngine/Include/Graphics/Window.h

@@ -2,12 +2,15 @@
 #define GLFW_STATIC
 
 #include <glad/glad.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <iostream>
+
 #include <GLFW/glfw3.h>
-#include "../Include/EventSystem/EventListener.h"
-
-
-
+#include <spdlog/spdlog.h>
 
+#include "EventSystem/Event.h"
+#include "EventSystem/EventListener.h"
 
 class BarinkWindow : EventListener {
     private:
@@ -18,16 +21,13 @@ class BarinkWindow : EventListener {
 
         static bool InitGLFW();
 
-
-
-
     public:
         BarinkWindow(const int width, const int height);
         ~BarinkWindow();
 
         GLFWwindow* windowptr();
 
-        void ReceiveEvent(Event& incident) override;
+        void ReceiveEvent(Event& incident) override ;
         bool WindowShouldClose();
 
         void Poll();

BarinkEngine/Include/Input/InputManager.h

@@ -1,7 +1,11 @@
 #pragma once
 #include <vector>
-#include "Graphics/Window.h"
+#include <iostream>
+
+#include "spdlog/spdlog.h"
 #include "EventSystem/EventEmitter.h"
+#include "EventSystem/EventListener.h"
+#include "Graphics/Window.h"
 
 namespace BarinkEngine {
 
@@ -12,8 +16,6 @@ namespace BarinkEngine {
 		void PollEvents();
 		void attach(BarinkWindow* window);
 
-
-
 		// GLFW Handlers
 		static void KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
 		static void CursorPositionCallback(GLFWwindow* window, double x, double y);
@@ -25,3 +27,5 @@ namespace BarinkEngine {
 
 	};
 }
+
+extern BarinkEngine::InputManager InputSystem;

BarinkEngine/Include/PerfCounter.h

@@ -3,13 +3,13 @@
 #include <imgui.h>
 
  struct EngineStatistics {
-	uint32_t lastSampleTime;
+	long long lastSampleTime;
 	float frameTime;
 	uint32_t verts;
 	uint32_t DC;
 
-	uint64_t frames;
-	uint64_t  FPS;
+	long long frames;
+	long long  FPS;
 };
 extern EngineStatistics* ES;
 
@@ -25,8 +25,8 @@ inline void SamplePerformance(void) {
 	ES->frames++; 
 	ES->DC = 0; 
 	ES->verts = 0; 
-	unsigned int  now = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count(); 
-	unsigned int MilliSecondsPast = now - ES->lastSampleTime; 
+	unsigned long long  now = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count(); 
+	unsigned long long MilliSecondsPast = now - ES->lastSampleTime; 
 	if (MilliSecondsPast >= 1000) {
 			
 			ES->frameTime = (float)1000 / ES->frames; 

BarinkEngine/Include/Scene.h

@@ -2,46 +2,22 @@
 #include <string>
 #include <vector>
 
-#include "glm/glm.hpp"
-
+#include "Graphics/Transform.h"
+#include "Scene/Node.h"
 /*
 *	Scene should be a description of a game world 
 */
-
-struct Transform {
-	glm::vec3 Position;
-	glm::vec3 Rotation;
-	glm::vec3 Scale;
-
-	glm::mat4 ModelMatrix;
-};
-
-
-class SceneNode {
-public: 
-	std::string name;
-	Transform transform;
-	SceneNode* parent;
-	std::vector<SceneNode*> children;
-
-
-	void addChild(SceneNode& node);
-
-};
-
-
 class Scene {
 
 public:
-	SceneNode& GetSceneNode(std::string);
-	SceneNode& GetRoot();
+	Node& GetSceneNode(std::string);
+	Node& GetRoot();
 
-	Scene(std::string SceneName = "Default Scene");
+	Scene(const std::string& sceneName = "Default Scene");
 	~Scene();
 
-
 private:
-	SceneNode* root;
+	Node* root;
 		
 };
 

BarinkEngine/Include/Scene/Node.h

@@ -0,0 +1,24 @@
+#pragma once
+#include <string>
+#include <vector>
+#include "Graphics/Transform.h"
+
+class Node {
+	public:
+		Node(const std::string& name);
+		std::string name;
+		Node* parent;
+		std::vector<Node*> children;
+
+		void addChild(Node& node);
+
+};
+
+
+
+class Group : public Node {
+public:
+	Group(const std::string& name);
+	Transform& transform;
+
+};

BarinkEngine/Include/Scene/SceneBuilder.h

@@ -0,0 +1,15 @@
+#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/Include/Scene/SceneManager.h

@@ -0,0 +1,17 @@
+#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/Include/Scene/SceneNodeTypes.h

@@ -0,0 +1,22 @@
+#pragma once
+#include "Graphics/Camera.h"
+#include "Graphics/Renderable.h"
+#include "Scene/Node.h"
+
+namespace BarinkEngine {
+	class SceneCamera : public Group
+	{
+	public:
+		Camera& camera;
+		SceneCamera();
+	};
+
+
+	class SceneObject : public Group
+	{
+	public:
+		SceneObject(std::string name, Renderable* visual);
+		~SceneObject();
+		Renderable* renderable;
+	};
+}

BarinkEngine/Scene.cpp

@@ -1,52 +0,0 @@
-#include "Scene.h"
-
-
-SceneNode* SearchInChildren(SceneNode* root, std::string name ) {
-	
-	if (root->name == name)
-		return root;
-
-	SceneNode* found = nullptr;
-	for (auto child : root->children) {
-		found = SearchInChildren(child, name);
-	}
-	return found;
-}
-
-
-SceneNode& Scene::GetSceneNode(std::string name)
-{
-	return *SearchInChildren(root, name);
-}
-
-
-
-SceneNode& Scene::GetRoot()
-{
-	return *root;
-}
-
-Scene::Scene(std::string sceneName)
-{
-	// Create a root node
-	root = new SceneNode();
-	root->name = sceneName;
-	root->transform = Transform();
-
-	root->transform.Position	= glm::vec3(0);
-	root->transform.Rotation	= glm::vec3(0);
-	root->transform.Scale		= glm::vec3(0);
-
-	root->transform.ModelMatrix = glm::mat4(0);
-
-}
-
-Scene::~Scene()
-{	
-	// Destruct scene!
-}
-
-void SceneNode::addChild(SceneNode& node)
-{
-	children.push_back(&node);
-}

BarinkEngine/graphics/ModelImporter.cpp

@@ -1,133 +0,0 @@
-#include "AssetManager/ModelImporter.h"
-
-
-void ModelImporter::ImportFBX(std::string path)
-{
-    //spdlog::warn("ImportFBX not implemented!");
-}
-
-void ModelImporter::ImportBlend(std::string path)
-{
-    //spdlog::warn("ImportBlend not implemented!");
-}
-
-void ModelImporter::ImportGLTF(std::string path)
-{
-    //spdlog::warn("ImportGLTF not implemented!");
-}
-
-void ModelImporter::ImportOBJ(std::string path)
-{
-    //spdlog::warn("ImportOBJ not implemented!");
-}
-
-void ModelImporter::Import(std::string path)
-{
-    //spdlog::warn("Import not implemented!");
-}
-
-std::vector<BarinkEngine::Mesh> ModelImporter::Test() {
-   
-    /*
-    spdlog::info("====== Tiny GLTF ======");
-    tinygltf::Model loadedModel;
-    tinygltf::TinyGLTF loader;
-    std::string error;
-    std::string warn;
-    bool ret = loader.LoadASCIIFromFile(&loadedModel, &error, &warn, "./Build/SandboxApplication/Debug/sponza.gltf");
-
-    if (!warn.empty())
-        spdlog::warn("TinyGLTF Warning: {}", warn);
-    if (!error.empty())
-        spdlog::error("TinyGLTF Error: {}", error);
-    if (!ret) {
-        spdlog::error("TinyGLTF Error: Failed to parse glTF");
-        exit(-1);
-    }
-
-    spdlog::info("Meshes in model: {}", loadedModel.meshes.size());
-    spdlog::info("Primitives in mesh: {}", loadedModel.meshes[0].primitives.size());
-
-    */
-    
-   
-    //spdlog::info("======= Assimp ======");
-
-    Assimp::Importer importer;
-    const aiScene* scene = importer.ReadFile("build/SandboxApplication/Debug/Models/Cube.obj", aiProcess_Triangulate | aiProcess_FlipUVs);
-    
-    aiNode* currentNode = scene->mRootNode;
-
-   return processNode(currentNode, scene);
-
-
-}
-
-std::vector<BarinkEngine::Mesh> ModelImporter::processNode(aiNode* node, const aiScene* scene) {
-    std::vector<BarinkEngine::Mesh> meshes;
-    for (unsigned int i = 0; i < node->mNumMeshes; i++) {
-        aiMesh* mesh = scene->mMeshes[node->mMeshes[i]];
-        meshes.push_back(processMesh(mesh, scene));
-    }
-
-    for (unsigned int i = 0; i < node->mNumChildren; i++) {
-       auto m2 =  processNode(node->mChildren[i], scene);
-
-       for(auto m : m2) {
-           meshes.push_back(m);
-       }
-    }
-
-    return meshes;
-}
-
-BarinkEngine::Mesh ModelImporter::processMesh(aiMesh* mesh, const aiScene* scene) {
-    std::vector<unsigned int> indices;
-    std::vector<BarinkEngine::Vertex> vertices;
-
-    // Process vertices
-    for (unsigned int i = 0; i < mesh->mNumVertices; i++) {
-        BarinkEngine::Vertex v{};
-        glm::vec3 vector;
-        vector.x = mesh->mVertices[i].x;
-        vector.y = mesh->mVertices[i].y;
-        vector.z = mesh->mVertices[i].z;
-        
-        v.vertices = vector;
-        
-        if (mesh->mTextureCoords[0]) {
-
-            glm::vec2 texCoord;
-
-            texCoord.x = mesh->mTextureCoords[0][i].x;
-            texCoord.y = mesh->mTextureCoords[0][i].y;
-
-            v.uv = texCoord;
-
-        }
-    
-        vertices.push_back(v);
-    }
-
-    // Process Indices
-    for (unsigned int i = 0; i < mesh->mNumFaces; i++) {
-        aiFace face = mesh->mFaces[i];
-        if (face.mNumIndices < 3)
-            continue;
-        for (unsigned int j = 0; j < face.mNumIndices; j++) {
-            indices.push_back(face.mIndices[j]);
-        }
-    }
-
-    
-
-    BarinkEngine::Mesh result;
-    
-
-    result.vertices = vertices;
-    result.elements = indices;
-
-
-    return result;
-
-}

BarinkEngine/graphics/Renderable.cpp

@@ -1,62 +0,0 @@
-#include "Graphics/Renderable.h"
-#include "AssetManager/ModelImporter.h"
-#include "PerfCounter.h"
-
-
-Renderable* Renderable::Load()
-{
-    return new Renderable();
-}
-
-Renderable::Renderable()
-{
-    meshes = ModelImporter::Test();
-
-    transform.Scale = glm::vec3(1.0f);
-    transform.Rotation = glm::vec3(0.0f, 0.0f, 0.0f);
-    transform.Position = glm::vec3(0.0f, 0.0f, 0.0f);
-
-    VAO.Create();
-    VAO.Bind();
-
-
-    vertexBuffer.createBuffer();
-    vertexBuffer.Bind(false);
-    vertexBuffer.setBufferData(&meshes[0].vertices[0], meshes[0].vertices.size() * sizeof(BarinkEngine::Vertex), false);   
-
-    elementBuffer.createBuffer();
-    elementBuffer.Bind(true);
-    elementBuffer.setBufferData(&meshes[0].elements[0], meshes[0].elements.size() * sizeof(unsigned int), true);
-
-    VAO.AttachAttribute(0, 3, sizeof(BarinkEngine::Vertex));
-
-   glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(BarinkEngine::Vertex),(void* )offsetof(BarinkEngine::Vertex, vertices));
-   glEnableVertexAttribArray(1);
-    
-   vertexBuffer.Unbind(false);
-  
-   VAO.Unbind();
-
-
-}
-
-Renderable::~Renderable()
-{
-    glDeleteBuffers(1, &UV_id);
-}
-
-void Renderable::Draw()
-{
-    VAO.Bind();
-    elementBuffer.Bind(true);
-
-    glActiveTexture(GL_TEXTURE0);
-    glUniform1i(glGetUniformLocation(shader->id, "Texture"), GL_TEXTURE0);
-    texture->Bind();
-
-    ES->verts = meshes[0].vertices.size();
-    ES->DC++;
-    glDrawElements(GL_TRIANGLES, static_cast<unsigned int>(meshes[0].elements.size()), GL_UNSIGNED_INT, NULL);
-    VAO.Unbind();
-
-}

BarinkEngine/graphics/Renderer.cpp

@@ -1,25 +0,0 @@
-#include "Graphics/Renderer.h"
-
-BarinkEngine::Renderer::Renderer()
-{
-	models = std::vector<Renderable*>();
-}
-
-BarinkEngine::Renderer::~Renderer()
-{
-	// CleanUp!
-}
-
-void BarinkEngine::Renderer::Render()
-{
-
-	for (auto model : models) {
-		model->Draw();
-	}
-
-}
-
-void BarinkEngine::Renderer::Submit(Renderable* model)
-{
-	models.push_back(model);
-}

BarinkEngine/premake5.lua

@@ -52,10 +52,10 @@ project "BarinkEngine"
   files {
     "../libs/glad/src/glad.c",
 
-    "./*.cpp",
-    "./*.h",
-    "./**/*.cpp",
-    "./**/*.h"
+    "./src/*.cpp",
+    "./Include/*.h",
+    "./src/**/*.cpp",
+    "./Include/**/*.h"
   }
 
 
@@ -63,10 +63,10 @@ project "BarinkEngine"
   filter { "system:windows"}
     prebuildcommands {
       -- Copy shaders 
-      "copy graphics\\shaders\\fragment.shader            ..\\build\\SandboxApplication\\Debug\\test.fs", 
-      "copy graphics\\shaders\\vertex.shader              ..\\build\\SandboxApplication\\Debug\\test.vs",
-      "copy graphics\\shaders\\RenderSurfaceFrag.shader   ..\\build\\SandboxApplication\\Debug\\RenderSurface.fs",
-      "copy graphics\\shaders\\RenderSurfaceVert.shader   ..\\build\\SandboxApplication\\Debug\\RenderSurface.vs" 
+      "copy src\\graphics\\shaders\\fragment.shader            ..\\build\\SandboxApplication\\Debug\\test.fs", 
+      "copy src\\graphics\\shaders\\vertex.shader              ..\\build\\SandboxApplication\\Debug\\test.vs",
+      "copy src\\graphics\\shaders\\RenderSurfaceFrag.shader   ..\\build\\SandboxApplication\\Debug\\RenderSurface.fs",
+      "copy src\\graphics\\shaders\\RenderSurfaceVert.shader   ..\\build\\SandboxApplication\\Debug\\RenderSurface.vs" 
     }
     
    
@@ -74,10 +74,10 @@ project "BarinkEngine"
   filter { "system:linux" }
     prebuildcommands {
       -- Copy shaders
-      "cp graphics/shaders/fragment.shader ../build/SandboxApplication/Debug/test.fs", 
-      "cp graphics/shaders/vertex.shader ../build/SandboxApplication/Debug/test.vs",
-      "cp graphics/shaders/RenderSurfaceFrag.shader ../build/SandboxApplication/Debug/RenderSurface.fs",
-      "cp graphics/shaders/RenderSurfaceVert.shader ../build/SandboxApplication/Debug/RenderSurface.vs" 
+      "cp src/graphics/shaders/fragment.shader ../build/SandboxApplication/Debug/test.fs", 
+      "cp src/graphics/shaders/vertex.shader ../build/SandboxApplication/Debug/test.vs",
+      "cp src/graphics/shaders/RenderSurfaceFrag.shader ../build/SandboxApplication/Debug/RenderSurface.fs",
+      "cp src/graphics/shaders/RenderSurfaceVert.shader ../build/SandboxApplication/Debug/RenderSurface.vs" 
     }
 
 include('../ImGui')

BarinkEngine/src/BarinkEngine.cpp

@@ -1,8 +1,6 @@
 #include "BarinkEngine.h"
-#include <phonon.h>
 
 EngineStatistics* ES;
-BarinkEngine::InputManager InputSystem;
 
 int main(int argc, char* argv[]) {
 	// Setup performance sampler 

BarinkEngine/src/Graphics/Buffer.cpp

@@ -1,15 +1,15 @@
 #include "Graphics/Buffer.h"
 
 
-int Buffer::getBufferID() {
+int GpuBuffer::getBufferID() {
 	return id;
 }
 
-void Buffer::createBuffer() {
+void GpuBuffer::createBuffer() {
 	glGenBuffers(1, (GLuint*) &id);
 }
 
-void Buffer::setBufferData(void* data, size_t dataSize, bool elementBuffer = false ) {
+void GpuBuffer::setBufferData(void* data, size_t dataSize, bool elementBuffer = false ) {
 	
 	if (elementBuffer) {
 		glBufferData(GL_ELEMENT_ARRAY_BUFFER, dataSize, data, GL_STATIC_DRAW);
@@ -21,7 +21,7 @@ void Buffer::setBufferData(void* data, size_t dataSize, bool elementBuffer = fal
 
 }
 
-void Buffer::Bind(bool elementBuffer = false ) {
+void GpuBuffer::Bind(bool elementBuffer = false ) {
 	if (elementBuffer) {
 		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id);
 
@@ -32,7 +32,7 @@ void Buffer::Bind(bool elementBuffer = false ) {
 	}
 }
 
-void Buffer::Unbind(bool elementBuffer = false) {
+void GpuBuffer::Unbind(bool elementBuffer = false) {
 	if (elementBuffer) {
 		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
 	}
@@ -42,6 +42,6 @@ void Buffer::Unbind(bool elementBuffer = false) {
 	}
 }
 
-void Buffer::Delete() {
+void GpuBuffer::Delete() {
 	glDeleteBuffers(1, (GLuint*) &id);
 }

BarinkEngine/src/Graphics/GPUBucket.cpp

@@ -0,0 +1,37 @@
+#include "Graphics/GPUBucket.h"
+BarinkEngine::GPU_Bucket::GPU_Bucket() {
+}
+BarinkEngine::GPU_Bucket::~GPU_Bucket() {
+
+}
+
+void BarinkEngine::GPU_Bucket::Upload(const Mesh& renderable) {
+
+	// keep a ref to the origin in main memory 
+	mesh = &renderable;
+
+	// Upload gpu
+
+	vertexarray.Create();
+	vertexarray.Bind();
+
+	vertexBuffer.createBuffer();
+	vertexBuffer.Bind(false);
+	vertexBuffer.setBufferData((void*)&renderable.vertices[0], renderable.vertices.size() * sizeof(BarinkEngine::Vertex), false);
+
+	if (renderable.elements.empty()  == false) {
+		elementBuffer.createBuffer();
+		elementBuffer.Bind(true);
+		elementBuffer.setBufferData((void*)&renderable.elements[0], renderable.elements.size() * sizeof(unsigned int), true);
+	}
+	
+	vertexarray.AttachAttribute(0, 3, sizeof(Vertex));
+
+	glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(BarinkEngine::Vertex), (void*)offsetof(BarinkEngine::Vertex, vertices));
+	glEnableVertexAttribArray(1);
+
+	vertexBuffer.Unbind(false);
+	vertexarray.Unbind();
+
+
+}

BarinkEngine/src/Graphics/Material.cpp

@@ -4,7 +4,8 @@ Material::Material(const Shader& shader) :
 shader(shader) {
 }
 
+void Material::Apply() const  {
 
-void Material::Apply() {
+	shader.Use();
 	shader.setUniformVec3("Color", Color);
 }

BarinkEngine/src/Graphics/ModelImporter.cpp

@@ -0,0 +1,100 @@
+#include "AssetManager/ModelImporter.h"
+#include "spdlog/spdlog.h"
+
+BarinkEngine::SceneObject* BarinkEngine::ModelImporter::Import(const std::string path)
+{
+    SceneObject* root = new SceneObject(std::string(path), nullptr);
+
+    Assimp::Importer importer;
+    const aiScene* scene = importer.ReadFile(path, aiProcess_Triangulate | aiProcess_FlipUVs);
+
+    aiNode* currentNode = scene->mRootNode;
+
+    std::vector<BarinkEngine::Mesh> meshes =  processNode(currentNode, scene);
+    
+    std::cout << "[DEBUG]: Loaded "<< meshes.size() << " meshes!" << std::endl;
+    
+
+    // create a renderable (per mesh ?? ) 
+    root->renderable = new Renderable();
+    root->renderable->mesh = &(meshes[0]);
+
+    return root;   
+
+}
+
+std::vector<BarinkEngine::Mesh> BarinkEngine::ModelImporter::processNode(aiNode* node, const aiScene* scene) 
+{
+
+    std::vector<BarinkEngine::Mesh> meshes;
+
+    for (unsigned int i = 0; i < node->mNumMeshes; i++) {
+        aiMesh* mesh = scene->mMeshes[node->mMeshes[i]];
+        meshes.push_back(processMesh(mesh, scene));
+    }
+
+    for (unsigned int i = 0; i < node->mNumChildren; i++) {
+       auto m2 =  processNode(node->mChildren[i], scene);
+
+       for(auto m : m2) {
+           meshes.push_back(m);
+       }
+    }
+
+    return meshes;
+}
+
+BarinkEngine::Mesh BarinkEngine::ModelImporter::processMesh(aiMesh* mesh, const aiScene* scene) {
+    std::vector<unsigned int> indices;
+    std::vector<BarinkEngine::Vertex> vertices;
+
+    ProcessVertices(mesh, vertices);
+    
+    ProcessIndices(mesh, indices);
+
+    BarinkEngine::Mesh result;
+    result.vertices = vertices;
+    result.elements = indices;
+
+
+    return result;
+
+}
+
+void ProcessVertices(aiMesh* mesh, std::vector<BarinkEngine::Vertex>& out_vertices) {
+    // Process vertices
+    for (unsigned int i = 0; i < mesh->mNumVertices; i++) {
+        BarinkEngine::Vertex v{};
+        glm::vec3 vector;
+        vector.x = mesh->mVertices[i].x;
+        vector.y = mesh->mVertices[i].y;
+        vector.z = mesh->mVertices[i].z;
+
+        v.vertices = vector;
+
+        if (mesh->mTextureCoords[0]) {
+
+            glm::vec2 texCoord;
+
+            texCoord.x = mesh->mTextureCoords[0][i].x;
+            texCoord.y = mesh->mTextureCoords[0][i].y;
+
+            v.uv = texCoord;
+
+        }
+
+        out_vertices.push_back(v);
+    }
+}
+
+void ProcessIndices(aiMesh* mesh, std::vector<unsigned int>& out_indices) {
+    // Process Indices
+    for (unsigned int i = 0; i < mesh->mNumFaces; i++) {
+        aiFace face = mesh->mFaces[i];
+        if (face.mNumIndices < 3)
+            continue;
+        for (unsigned int j = 0; j < face.mNumIndices; j++) {
+            out_indices.push_back(face.mIndices[j]);
+        }
+    }
+}

BarinkEngine/src/Graphics/Renderer.cpp

@@ -0,0 +1,77 @@
+#include "Graphics/Renderer.h"
+
+
+BarinkEngine::Renderer::Renderer()
+{
+	models = std::vector<GPU_Bucket*>();
+
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
+
+}
+
+BarinkEngine::Renderer::~Renderer()
+{
+	// CleanUp!
+
+	// For each model submitted 
+	for ( auto packet : models )
+	{
+		delete packet;
+	}
+
+	// glDeleteBuffers(1, &UV_id);
+}
+
+void BarinkEngine::Renderer::Render()
+{
+	// This creation of the projection and camera is somewhat wastefull
+	Camera cam =  Camera(glm::vec3(0.0f, 1.5f, 0.0f), glm::vec3(0.0f, 0.0f, 0.0f), 90.0f);
+	glm::mat4 projection = glm::perspective(glm::radians(cam.Zoom), (800.0f / 600.0f), 0.001f, 100.0f);
+
+	
+	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;
+			}
+			else {
+				model->material->Apply();
+			}
+			
+			// 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();
+		
+	}
+	
+	
+
+}
+
+
+// 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); // Maybe push a GPU packet or something instead 
+	
+}

BarinkEngine/src/Graphics/Shader.cpp

@@ -1,5 +1,6 @@
 #include "Graphics/Shader.h"
 #include "spdlog/spdlog.h"
+
 Shader::Shader(const std::string vertexShaderPath, const std::string fragmentShaderPath)
 {
     char infoLog[512];
@@ -57,8 +58,12 @@ Shader::Shader(const std::string vertexShaderPath, const std::string fragmentSha
 
 
 }
+
 char* Shader::readFile (const char* filePath){
 
+    spdlog::info("Opening {} ", filePath);
+
+
     std::ifstream file ;
     file.open(filePath);
 
@@ -90,7 +95,7 @@ char* Shader::readFile (const char* filePath){
     return FileBuffer;
 }
 
-void Shader::Use()
+void Shader::Use() const
 {
     glUseProgram(id);
 }

BarinkEngine/src/Graphics/window.cpp

@@ -1,10 +1,4 @@
 #include "Graphics/Window.h"
-#include <stdlib.h>
-#include <stdio.h>
-#include <iostream>
-#include <GLFW/glfw3.h>
-#include <spdlog/spdlog.h>
-#include "../Include/EventSystem/Event.h"
 
 bool BarinkWindow::InitGLFW(){
 	if(!glfwInit())
@@ -22,6 +16,15 @@ Width(width), Height(height), FullScreen(false){
 		exit(-1);
 	}
 
+	glfwWindowHint(GLFW_DOUBLEBUFFER, GLFW_TRUE);
+	glfwWindowHint(GLFW_FOCUS_ON_SHOW, GLFW_TRUE);
+	// No window decorations such as a border, a close widget
+	//glfwWindowHint(GLFW_DECORATED, GLFW_FALSE);
+	//glfwWindowHint(GLFW_MAXIMIZED, GLFW_TRUE);
+	// Disable resizing the window
+	glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
+
+
 	window = glfwCreateWindow(Width, Height, "BarinkEngine", NULL, NULL);
 
 	if( !window)
@@ -76,9 +79,8 @@ void BarinkWindow::SwapBuffers()
 	glfwSwapBuffers(window);
 }
 
-
 void BarinkWindow::ReceiveEvent(Event& incident)
 {
 	std::cout << "EVENT RECEIVED: " <<  incident.name << std::endl;
-
 }
+

BarinkEngine/src/Input/InputManager.cpp

@@ -1,12 +1,12 @@
-#include "BarinkEngine.h"
 #include "Input/InputManager.h"
-#include "GLFW/glfw3.h"
-#include "spdlog/spdlog.h"
-#include <iostream>
+BarinkEngine::InputManager InputSystem;
+
 void BarinkEngine::InputManager::PollEvents()
 {
 	for (auto it = windows.begin(); it != windows.end(); ++it) {
-		(*it)->Poll();
+		auto window = *it;
+		window->Poll();
+
 	}
 }
 

BarinkEngine/src/Scene.cpp

@@ -0,0 +1,66 @@
+#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/Node.cpp

@@ -0,0 +1,7 @@
+#include "Scene/Node.h"
+
+Node::Node(const std::string& name) 
+	: name(name), parent(nullptr), children(std::vector<Node*>()) {}
+
+Group::Group(const std::string& name ) 
+	: Node(name), transform(Transform()) {}

BarinkEngine/src/Scene/SceneManager.cpp

@@ -0,0 +1,22 @@
+#include "Scene/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/SceneNodeTypes.cpp

@@ -0,0 +1,12 @@
+#include "Scene/SceneNodeTypes.h"
+
+BarinkEngine::SceneCamera::SceneCamera()
+	: Group(std::string("Camera")), camera(Camera(glm::vec3(0.0f), glm::vec3(0.0f), 0))
+{}
+
+BarinkEngine::SceneObject::SceneObject(std::string name, Renderable* visual)
+	: Group(name), renderable(visual)
+{}
+
+BarinkEngine::SceneObject::~SceneObject() 
+{}

SandboxApplication/Sandbox.cpp

@@ -1,174 +0,0 @@
-#include "BarinkEngine.h"
-#include "imgui.h"
-#include "GUI.h"
-#include "Util.h"
-
-/*
-* Define globals
-*/
-Camera* cam;
-
-
-Shader* shader;
-
-Renderable* Cube;
-Material* matCube;
-Texture* textureCube;
-
-Renderable* Cube2;
-Material* matCube2;
-
-char* code = new char[254];
-
-
-const std::string vertexShaderSource = "build/SandboxApplication/Debug/test.vs";
-const std::string fragmentShaderSource = "build/SandboxApplication/Debug/test.fs";
-
-
-
-/*
-* Runs once at startup 
-* - USe to initialize the game/sandbox/demo
-*/
-void Start() {
-
-    /*
-        Building a very basic scene graph
-    */
-    SceneNode MyCube = SceneNode();
-    MyCube.name = "MyCube";
-
-    SceneNode MyBaby = SceneNode();
-    MyBaby.name = "Baby";
-
-    SceneNode MySecondCube = SceneNode();
-    MySecondCube.name = "MySecondCube";
-
-
-    MyCube.addChild(MyBaby);
-
-    
-    Scene scene = Scene("My awesome Game Scene");
-    scene.GetRoot().addChild(MyCube);
-    scene.GetRoot().addChild(MySecondCube);
-
-
-   // Walk scene graph
-    PrintSceneTree(scene.GetRoot(),0);
-
-    shader = new Shader(vertexShaderSource, fragmentShaderSource);
-
-    textureCube = new Texture("build/SandboxApplication/Debug/Textures/wall.jpg");
-
-    matCube = new Material(*shader);
-    matCube->Color = glm::vec3(1.0, 0.0, 0.0);
-
-    matCube2 = new Material(*shader);
-    matCube2->Color = glm::vec3(0.0, 1.0f, 0.0);
-
-    /*
-    * load meshes 
-    */
-    Cube = Renderable::Load();
-    Cube2 = Renderable::Load();
-    Cube->addChild(*Cube2);
-
-    Cube->shader = shader;
-    Cube2->shader = shader;
-
-    Cube->texture = textureCube;
-    Cube2->texture = textureCube;
-
-    Cube2->transform.Position = glm::vec3(-9.0f, 0.0f, 0.0f);
-
-    Cube->transform.Position = glm::vec3(-8.0f, 0.0f, -2.0f);
-
-    cam = new Camera(glm::vec3(0.0f, 1.5f, 0.0f), glm::vec3(0.0f, 0.0f, 0.0f), 90.0f);
-
-    memset(code, '\0', 254);
-
-}
-
-
-/*
-* Runs every frame
-* - Use to draw Immediate mode graphics (Not meant for HUD's )
-*/
-void ImmediateGraphicsDraw() {
-    ImGui::NewFrame();
-
-    // Show ImGui demo such that I can easily look
-    // at possible GUI elements to use
-    ImGui::ShowDemoWindow();
-
-
-    // Show internal BarinkEngine stats
-    ShowStats();
-
-
-    // Show different tooling for this specific sandbox
-    CameraTool(cam);
-    ScriptingTool(code);
-
-    transformWindow(Cube->transform, "Transform (Cube)");
-
-    transformWindow(Cube2->transform, "Transform (Cube2)");
-
-    materialWindow(*matCube, "Material Cube");
-    materialWindow(*matCube2, "Material Cube2");
-
-
-
-}
-
-/*
-* Runs every frame
-* - Meant for game logic ( non-physics related) 
-*/
-void Update()
-{
-
-
-    /*
-    * NOTE: this needs to move to the renderer
-    * Render code should not appear in the sandbox file
-    */
-    glm::mat4 projection = glm::perspective(glm::radians(cam->Zoom), (800.0f / 600.0f), 0.001f, 100.0f);
-
-    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-
-    shader->Use();
-    shader->setUniformMat4("P", projection);
-    shader->setUniformMat4("M", CalculateModelMat(Cube->transform));
-    shader->setUniformMat4("V", cam->GetViewMatrix());
-    matCube->Apply();
-
-    Cube->Draw();
-
-    shader->setUniformMat4("M", CalculateModelMat(Cube2->transform));
-    matCube2->Apply();
-
-    Cube2->Draw();
-
-}
-
-/*
-* Runs at the end of the program
-* - Meant for cleanup
-*/
-void Stop() {
-    // Cleanup
-    Cube->VAO.Delete();
-    Cube->elementBuffer.Delete();
-
-    Cube2->VAO.Delete();
-    Cube2->elementBuffer.Delete();
-
-    delete Cube2;
-    delete Cube;
-
-    delete matCube;
-    delete matCube2;
-
-    delete shader;
-}

SandboxApplication/Util.h

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

SandboxApplication/include/GUI.h

@@ -6,3 +6,4 @@ void CameraTool(Camera* camera);
 void ScriptingTool(char* code);
 void transformWindow(Transform& transform, std::string PanelName);
 void materialWindow(Material& material, std::string PanelName);
+void SceneExplorer(Scene& scene, std::string PanelName);

SandboxApplication/include/Util.h

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

SandboxApplication/premake5.lua

@@ -0,0 +1,40 @@
+project "SandboxApplication"
+kind "ConsoleApp"
+
+buildmessage "Building Sandbox ..."
+
+links{
+  "BarinkEngine"
+}
+
+includedirs{
+  "./../BarinkEngine/Include",
+
+  -- I'd prefer if didn't need these..
+  -- We'll figure that out some time later
+  "./../libs/lua/include",
+  "./../libs/spdlog/include",
+  "./../libs/glm",
+  "./../libs/GorillaAudio/include",
+
+  "./../libs/assimp/include",
+  "./../libs/glad/include",
+  "./../libs/glfw/include",
+  "./../libs/tinygltf",
+  "./../libs/glew/include",
+  "./../libs/glm",
+  "./../libs/ImGui",
+
+
+  "./include"
+
+}
+
+libdirs {
+  './../build/BarinkEngine/Debug'
+}
+
+files { 
+  "./include/*.h",
+  "./src/*.cpp"
+}

SandboxApplication/src/GUI.cpp

@@ -1,5 +1,35 @@
 #include "GUI.h"
 
+void SceneExplorer(Scene& scene, std::string PanelName) {
+    if (ImGui::Begin(PanelName.c_str())) {
+        ImGui::ListBoxHeader("##ObjectList");
+
+        Node& current = scene.GetRoot();
+
+        Node* next = &current;
+
+        // Show first node
+        ImGui::Selectable(next->name.c_str(), true);
+
+        ImGui::Indent();
+
+        if (next->children.size() != 0) {
+            for (auto child : next->children)
+            {
+                std::string& name = child->name;
+                ImGui::Selectable(name.c_str(), false);
+            }
+        }
+
+        ImGui::ListBoxFooter();
+
+      
+    }  
+    ImGui::End();
+
+    
+}
+
 void CameraTool(Camera* cam) {
 
     ImGui::Begin("Camera");

SandboxApplication/src/Sandbox.cpp

@@ -0,0 +1,102 @@
+#include "BarinkEngine.h"
+#include "Scene\SceneManager.h"
+#include "Scene\SceneNodeTypes.h"
+#include "AssetManager/ModelImporter.h"
+
+#include "imgui.h"
+#include "GUI.h"
+#include "Util.h"
+
+/*
+* Define globals
+*/
+Shader* shader;
+
+char* code = new char[254];
+
+const std::string vertexShaderSource = "../build/SandboxApplication/Debug/test.vs";
+const std::string fragmentShaderSource = "../build/SandboxApplication/Debug/test.fs";
+
+BarinkEngine::ModelImporter* MI = new BarinkEngine::ModelImporter();
+
+Scene* Level1;
+BarinkEngine::Renderer* renderer;
+BarinkEngine::SceneObject* cube;
+/*
+* Runs once at startup 
+* - USe to initialize the game/sandbox/demo
+*/
+void Start() {
+    // Build a basic test scene 
+    // NOTE: This will later be done through an editor 
+
+    // Create a level and load it as the current level
+    std::string levelName("Test Level");
+    Level1 = SceneManager::CreateScene(levelName);
+    SceneManager::LoadScene(*Level1);
+    
+    shader = new Shader(vertexShaderSource, fragmentShaderSource);
+
+    // Create a cube node
+   
+    cube = MI->Import("../build/SandboxApplication/Debug/Models/Cube.obj");
+    cube->renderable->material = new Material(*shader);
+
+    // What is in cube now ??    
+    std::cout <<  "mesh vertices: " << cube->renderable->mesh->vertices.size() << std::endl;
+    std::cout << "mesh elements: " << cube->renderable->mesh->elements.size() << std::endl;
+
+    Level1->GetRoot().addChild(*cube);
+
+    memset(code, '\0', 254);
+
+    // TODO: Move to runtime/ Engine 
+    renderer = new BarinkEngine::Renderer();
+    // NOTE: Submits should later be done through walking the sceneTree
+    renderer->Submit(cube->renderable);
+
+
+}
+
+/*
+* Runs every frame
+* - Use to draw Immediate mode graphics (Not meant for HUD's )
+*/
+void ImmediateGraphicsDraw() {
+    ImGui::NewFrame();
+
+    // Show ImGui demo such that I can easily look
+    // at possible GUI elements to use
+    ImGui::ShowDemoWindow();
+
+    // Show internal BarinkEngine stats
+    ShowStats();
+
+    // Show different tooling for this specific sandbox
+   // CameraTool(cam);
+    ScriptingTool(code);
+
+    SceneExplorer(*Level1, "Scene Explorer");
+
+}
+
+/*
+* Runs every frame
+* - Meant for game logic ( non-physics related) 
+*/
+void Update()
+{
+    
+    renderer->Render();
+
+}
+
+/*
+* Runs at the end of the program
+* - Meant for cleanup
+*/
+void Stop() {
+    delete MI;
+    delete renderer;
+    delete shader;
+}

SandboxApplication/src/Util.cpp

@@ -1,6 +1,6 @@
 #include "Util.h"
 
-void PrintSceneTree(SceneNode& node, int depth) {
+void PrintSceneTree(Node& node, int depth) {
     // Indent name based on depth
     std::cout << " ";
     for (int i = 0; i < depth; i++) {

TODO.md

@@ -11,7 +11,7 @@
 <input type="checkbox"></input> Basic Textures  \
 <input type="checkbox" checked></input> Link GLEW or GLAD \
 <input type="checkbox" checked></input> Work on basic logging  \
-<input type="checkbox"></input> Input handling  \
+<input type="checkbox" checked></input> Input handling  \
 <input type="checkbox"></input> More shader work  \
 <input type="checkbox" checked></input> Load FBX model files  \
 <input type="checkbox"></input> Basic Physics  \
@@ -21,5 +21,6 @@
 
 
 ## Resources 
-https://renderdoc.org/
-https://api.projectchrono.org/tutorial_table_of_content_chrono.html
+https://renderdoc.org/  \
+https://api.projectchrono.org/tutorial_table_of_content_chrono.html \
+https://github.com/epezent/implot  -- Useful when displaying graphs of any kind \ 

premake5.lua

@@ -18,46 +18,6 @@ workspace "BarinkEngine"
 		defines {"NDEBUG"}
 		optimize "On"
 
-
-	project "SandboxApplication"
-		kind "ConsoleApp"
-		
-		buildmessage "Building Sandbox ..."
-
-		links{
-			"BarinkEngine"
-		}
-
-		includedirs{
-			"./BarinkEngine/Include",
-	
-
-			-- I'd prefer if didn't need these..
-			-- We'll figure that out some time later
-			"./libs/lua/include",
-			"./libs/spdlog/include",
-			"./libs/glm",
-			"./libs/GorillaAudio/include",
-	
-			"./libs/assimp/include",
-			"./libs/glad/include",
-			"./libs/glfw/include",
-			"./libs/tinygltf",
-			"./libs/glew/include",
-			"./libs/glm",
-			"./libs/ImGui",
-	
-
-		}
-
-		libdirs {
-			'./build/BarinkEngine/Debug'
-		}
-	
-		files { 
-			"./SandboxApplication/*.h",
-			"./SandboxApplication/*.cpp"
-		}
-
+include("./SandboxApplication")
 
 include("./BarinkEngine")