Setup ecs-memory-efficient

10 files changed, 0 insertions, 354 deletions

diff --git a/mwe/ecs-homemade/CMakeLists.txt b/mwe/ecs-homemade/CMakeLists.txt
deleted file mode 100644
index 6267c1a..0000000
--- a/mwe/ecs-homemade/CMakeLists.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-cmake_minimum_required(VERSION 3.5)
-project(ecs-homemade)
-
-# Set the C++ standard (optional, but good practice)
-set(CMAKE_CXX_STANDARD 17)
-set(CMAKE_CXX_STANDARD_REQUIRED True)
-
-# Use the debug mode (otherwise breakpoints are not compiled)
-set(CMAKE_BUILD_TYPE Debug)
-
-add_executable(ecs-homemade
-	src/main.cpp
-	src/ComponentManager.cpp
-	src/Components.cpp
-	src/GameObjectMax.cpp
-)
-target_include_directories(ecs-homemade PRIVATE "${CMAKE_SOURCE_DIR}/inc")
diff --git a/mwe/ecs-homemade/inc/ComponentManager.h b/mwe/ecs-homemade/inc/ComponentManager.h
deleted file mode 100644
index 893aa56..0000000
--- a/mwe/ecs-homemade/inc/ComponentManager.h
+++ /dev/null
@@ -1,48 +0,0 @@
-#pragma once
-
-#include "Components.h"
-#include <cstdint>
-#include <unordered_map>
-#include <vector>
-#include <typeindex>
-#include <memory>
-#include <utility>
-
-class ComponentManager {
-public:
-	static ComponentManager& GetInstance();	//Singleton
-
-	ComponentManager(const ComponentManager&) = delete;	//Singleton
-    ComponentManager(ComponentManager&&) = delete;	//Singleton
-    ComponentManager& operator=(const ComponentManager&) = delete;	//Singleton
-    ComponentManager& operator=(ComponentManager&&) = delete;	//Singleton
-
-	template <typename T, typename... Args>
-	void AddComponent(std::uint32_t id, Args&&... args);	//Add a component of a specific type
-	template <typename T>
-	void DeleteComponentsById(std::uint32_t id);	//Deletes all components of a specific type and id
-	template <typename T>
-	void DeleteComponents();	//Deletes all components of a specific type
-	void DeleteAllComponentsOfId(std::uint32_t id);	//Deletes all components of a specific id
-	void DeleteAllComponents();	//Deletes all components
-
-	template <typename T>
-    std::vector<std::reference_wrapper<T>> GetComponentsByID(std::uint32_t id) const;	//Get a vector<> of all components at specific type and id
-	template <typename T>
-	std::vector<std::pair<std::reference_wrapper<T>, std::uint32_t>> GetComponentsByType() const;	//Get a vector<> of all components of a specific type
-
-private:
-    static ComponentManager mInstance;	//Singleton
-
-    ComponentManager();	//Singleton
-
-	/*
-	 * The std::unordered_map<std::type_index, std::vector<std::vector<std::unique_ptr<Component>>>> below might seem a bit strange, let me explain this structure:
-	 * The std::unordered_map<> has a key and value. The key is a std::type_index and the value is a std::vector. So, a new std::vector will be created for each new std::type_index.
-	 * The first std::vector<> stores another vector<>. This first vector<> is to bind the entity's id to a component.
-	 * The second std::vector<> stores unique_ptrs. Each component can be gathered via an unique_ptr. This second vector<> allows multiple components of the same std::type_index for one entity (id).
-	 */
-	std::unordered_map<std::type_index, std::vector<std::vector<std::unique_ptr<Component>>>> mComponents;
-};
-
-#include "ComponentManager.hpp"
diff --git a/mwe/ecs-homemade/inc/ComponentManager.hpp b/mwe/ecs-homemade/inc/ComponentManager.hpp
deleted file mode 100644
index 53dfddd..0000000
--- a/mwe/ecs-homemade/inc/ComponentManager.hpp
+++ /dev/null
@@ -1,88 +0,0 @@
-
-template <typename T, typename... Args>
-void ComponentManager::AddComponent(std::uint32_t id, Args&&... args) {
-    std::type_index type = typeid(T);	//Determine the type of T (this is used as the key of the unordered_map<>)
-
-    if (mComponents.find(type) == mComponents.end()) {	//Check if this component type is already in the unordered_map<>
-        mComponents[type] = std::vector<std::vector<std::unique_ptr<Component>>>();	//If not, create a new (empty) vector<> of vector<unique_ptr<Component>>
-    }
-
-    if (id >= mComponents[type].size()) {	//Resize the vector<> if the id is greater than the current size
-        mComponents[type].resize(id + 1);	//Initialize new slots to nullptr (resize does automatically init to nullptr)
-    }
-
-    mComponents[type][id].push_back(std::make_unique<T>(std::forward<Args>(args)...));	//Create a new component of type T using perfect forwarding and store its unique_ptr in the vector<>
-}
-
-template <typename T>
-void ComponentManager::DeleteComponentsById(std::uint32_t id) {
-	std::type_index type = typeid(T);	//Determine the type of T (this is used as the key of the unordered_map<>)
-
-	if (mComponents.find(type) != mComponents.end()) {	//Find the type (in the unordered_map<>)
-		std::vector<std::vector<std::unique_ptr<Component>>>& componentArray = mComponents[type];	//Get the correct vector<>
-
-        if (id < componentArray.size()) {	//Make sure that the id (that we are looking for) is within the boundaries of the vector<>
-            componentArray[id].clear();	//Clear the whole vector<> of this specific type and id
-        }
-	}
-}
-
-template <typename T>
-void ComponentManager::DeleteComponents() {
-	std::type_index type = typeid(T);	//Determine the type of T (this is used as the key of the unordered_map<>)
-
-	if (mComponents.find(type) != mComponents.end()) {	//Find the type (in the unordered_map<>)
-		mComponents[type].clear();	//Clear the whole vector<> of this specific type
-	}
-}
-
-template <typename T>
-std::vector<std::reference_wrapper<T>> ComponentManager::GetComponentsByID(std::uint32_t id) const {
-    std::type_index type = typeid(T);	//Determine the type of T (this is used as the key of the unordered_map<>)
-
-	std::vector<std::reference_wrapper<T>> componentVector;	//Create an empty vector<>
-
-    if (mComponents.find(type) != mComponents.end()) {	//Find the type (in the unordered_map<>)
-
-        const std::vector<std::vector<std::unique_ptr<Component>>>& componentArray = mComponents.at(type);	//Get the correct vector<>
-
-        if (id < componentArray.size()) {	//Make sure that the id (that we are looking for) is within the boundaries of the vector<>
-            for (const std::unique_ptr<Component>& componentPtr : componentArray[id]) {	//Loop trough the whole vector<>
-                T* castedComponent = static_cast<T*>(componentPtr.get());	//Cast the unique_ptr to a raw pointer
-
-                if (castedComponent) {	//Ensure that the cast was successful
-                    componentVector.push_back(*castedComponent); //Add the dereferenced raw pointer to the vector<>
-                }
-            }
-        }
-    }
-
-    return componentVector; //Return the vector<>
-}
-
-template <typename T>
-std::vector<std::pair<std::reference_wrapper<T>, std::uint32_t>> ComponentManager::GetComponentsByType() const {
-    std::type_index type = typeid(T);	//Determine the type of T (this is used as the key of the unordered_map<>)
-
-    std::vector<std::pair<std::reference_wrapper<T>, std::uint32_t>> componentVector;	//Create an empty vector<>
-	std::uint32_t id = 0;	//Set the id to 0 (the id will also be stored in the returned vector<>)
-
-    if (mComponents.find(type) != mComponents.end()) {	//Find the type (in the unordered_map<>)
-
-        const std::vector<std::vector<std::unique_ptr<Component>>>& componentArray = mComponents.at(type);	//Get the correct vector<>
-
-        for (const std::vector<std::unique_ptr<Component>>& component : componentArray) {	//Loop through the whole vector<>
-            for (const std::unique_ptr<Component>& componentPtr : component) {	//Loop trough the whole vector<>
-                T* castedComponent = static_cast<T*>(componentPtr.get());	//Cast the unique_ptr to a raw pointer
-
-                if (castedComponent) {	//Ensure that the cast was successful
-                    componentVector.emplace_back(std::ref(*castedComponent), id);	//Pair the dereferenced raw pointer and the id and add it to the vector<>
-                }
-            }
-
-			++id;	//Increase the id (the id will also be stored in the returned vector<>)
-        }
-    }
-
-    return componentVector;	//Return the vector<>
-}
diff --git a/mwe/ecs-homemade/inc/Components.h b/mwe/ecs-homemade/inc/Components.h
deleted file mode 100644
index 2645a45..0000000
--- a/mwe/ecs-homemade/inc/Components.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#pragma once
-
-class Component {
-public:
-	Component();
-
-	bool mActive;
-};
-
-class Sprite : public Component {
-public:
-	void Render();
-};
-
-class Rigidbody : public Component {
-public:
-	Rigidbody(int mass, int gravityScale, int bodyType);
-
-	int mMass;
-	int mGravityScale;
-	int mBodyType;
-};
-
-class Colider : public Component {
-public:
-	Colider(int size);
-
-	int mSize;
-};
diff --git a/mwe/ecs-homemade/inc/GameObjectMax.h b/mwe/ecs-homemade/inc/GameObjectMax.h
deleted file mode 100644
index f0bcec9..0000000
--- a/mwe/ecs-homemade/inc/GameObjectMax.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#pragma once
-
-#include <cstdint>
-#include <string>
-
-class GameObject {
-public:
-	GameObject(std::uint32_t id, std::string name, std::string tag, int layer);
-
-	template <typename T, typename... Args>
-	void AddComponent(Args&&... args);
-
-	std::uint32_t mId;
-	std::string mName;
-	std::string mTag;
-	bool mActive;
-	int mLayer;
-};
-
-#include "GameObjectMax.hpp"
diff --git a/mwe/ecs-homemade/inc/GameObjectMax.hpp b/mwe/ecs-homemade/inc/GameObjectMax.hpp
deleted file mode 100644
index 1e952ba..0000000
--- a/mwe/ecs-homemade/inc/GameObjectMax.hpp
+++ /dev/null
@@ -1,6 +0,0 @@
-#include "ComponentManager.h"
-
-template <typename T, typename... Args>
-void GameObject::AddComponent(Args&&... args) {
-	ComponentManager::GetInstance().AddComponent<T>(mId, std::forward<Args>(args)...);
-}
diff --git a/mwe/ecs-homemade/src/ComponentManager.cpp b/mwe/ecs-homemade/src/ComponentManager.cpp
deleted file mode 100644
index 16cc2b6..0000000
--- a/mwe/ecs-homemade/src/ComponentManager.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-#include "ComponentManager.h"
-
-ComponentManager ComponentManager::mInstance;
-
-ComponentManager& ComponentManager::GetInstance() {
-	return mInstance;
-}
-
-ComponentManager::ComponentManager() {}
-
-void ComponentManager::DeleteAllComponentsOfId(std::uint32_t id) {
-    for(auto& [type, componentArray] : mComponents) {	//Loop through all the types (in the unordered_map<>)
-        if (id < componentArray.size()) {	//Make sure that the id (that we are looking for) is within the boundaries of the vector<>
-            componentArray[id].clear();	//Clear the components at this specific id
-        }
-    }
-}
-
-void ComponentManager::DeleteAllComponents() {
-	mComponents.clear();	//Clear the whole unordered_map<>
-}
diff --git a/mwe/ecs-homemade/src/Components.cpp b/mwe/ecs-homemade/src/Components.cpp
deleted file mode 100644
index 5f10bc5..0000000
--- a/mwe/ecs-homemade/src/Components.cpp
+++ /dev/null
@@ -1,12 +0,0 @@
-#include "Components.h"
-#include <iostream>
-
-Component::Component() : mActive(true) {}
-
-void Sprite::Render() {
-	std::cout << "Rendering sprite" << std::endl;
-}
-
-Rigidbody::Rigidbody(int mass, int gravityScale, int bodyType) : mMass(mass), mGravityScale(gravityScale), mBodyType(bodyType) {}
-
-Colider::Colider(int size) : mSize(size) {}
diff --git a/mwe/ecs-homemade/src/GameObjectMax.cpp b/mwe/ecs-homemade/src/GameObjectMax.cpp
deleted file mode 100644
index 62c41de..0000000
--- a/mwe/ecs-homemade/src/GameObjectMax.cpp
+++ /dev/null
@@ -1,5 +0,0 @@
-#include "GameObjectMax.h"
-
-#include "ComponentManager.h"
-
-GameObject::GameObject(std::uint32_t id, std::string name, std::string tag, int layer) : mId(id), mName(name), mTag(tag), mActive(true), mLayer(layer) {}
diff --git a/mwe/ecs-homemade/src/main.cpp b/mwe/ecs-homemade/src/main.cpp
deleted file mode 100644
index 9e230e5..0000000
--- a/mwe/ecs-homemade/src/main.cpp
+++ /dev/null
@@ -1,108 +0,0 @@
-#include <iostream>
-#include <vector>
-#include <cstdint>
-
-#include "ComponentManager.h"
-#include "GameObjectMax.h"
-#include "Components.h"
-
-int main() {
-	GameObject gameObect0(0, "Name: 0", "Tag: 0", 0);	//Entity 0
-	GameObject gameObect1(1, "Name: 1", "Tag: 1", 1);	//Entity 1
-	GameObject gameObect2(2, "Name: 2", "Tag: 2", 2);	//Entity 2
-	GameObject gameObect3(3, "Name: 3", "Tag: 3", 3);	//Entity 3
-	GameObject gameObect4(4, "Name: 4", "Tag: 4", 4);	//Entity 4
-	GameObject gameObect5(5, "Name: 5", "Tag: 5", 5);	//Entity 5
-	GameObject gameObect6(6, "Name: 6", "Tag: 6", 6);	//Entity 6
-	GameObject gameObect7(7, "Name: 7", "Tag: 7", 7);	//Entity 7
-
-	gameObect0.AddComponent<Sprite>();			//Add a sprite to entity0
-	gameObect0.AddComponent<Rigidbody>(1, 2, 3);	//Also add a rigidbody to entity0
-	gameObect0.AddComponent<Rigidbody>(3, 2, 1);	//Add a second rigidbody to entity0
-
-	gameObect1.AddComponent<Rigidbody>(4, 5, 6);	//Only add a rigidbody to entity1
-
-	gameObect2.AddComponent<Sprite>();	//Add four sprites to entity2
-	gameObect2.AddComponent<Sprite>();
-	gameObect2.AddComponent<Sprite>();
-	gameObect2.AddComponent<Sprite>();
-	gameObect2.AddComponent<Rigidbody>(10, 100, 500);	//Add four rigidbodies to entity2
-	gameObect2.AddComponent<Rigidbody>(10, 100, 501);
-	gameObect2.AddComponent<Rigidbody>(10, 100, 502);
-	gameObect2.AddComponent<Rigidbody>(10, 100, 500);
-	
-	//Add non components to entity3, entity4, entity5 and entity6
-
-	gameObect7.AddComponent<Sprite>();	//Add a sprite to entity 7
-	gameObect7.AddComponent<Colider>(30);	//Add a colder to entity 7
-
-	//The entities are now initialized
-	//Now I will demonstrate some ways of retreiving/getting components
-
-	std::cout << "Finding all sprites of entity 0" << std::endl;
-	std::vector<std::reference_wrapper<Sprite>> spriteOfEntity0 = ComponentManager::GetInstance().GetComponentsByID<Sprite>(gameObect0.mId);
-	for(Sprite& spriteEntity0 : spriteOfEntity0) {
-		std::cout << "Sprite of entity 0: " << spriteEntity0.mActive << std::endl;
-	}
-	std::cout << std::endl;
-
-	std::cout << "Finding all rigidbodies of entity 0" << std::endl;
-	std::vector<std::reference_wrapper<Rigidbody>> rigidbodyOfEntity0 = ComponentManager::GetInstance().GetComponentsByID<Rigidbody>(gameObect0.mId);
-	for(Rigidbody& rigidbodyEntity0 : rigidbodyOfEntity0) {
-		std::cout << "Rigidbody of entity 0: " << rigidbodyEntity0.mMass << " " << rigidbodyEntity0.mGravityScale << " " << rigidbodyEntity0.mBodyType << std::endl;
-
-		rigidbodyEntity0.mMass = 15;
-	}
-	std::cout << std::endl;
-
-	std::cout << "Finding all coliders of entity 0" << std::endl;
-	std::vector<std::reference_wrapper<Colider>> coliderOfEntity0 = ComponentManager::GetInstance().GetComponentsByID<Colider>(gameObect0.mId);
-	for(Colider& coliderEntity0 : coliderOfEntity0) {
-		std::cout << "Colider of entity 0: " << coliderEntity0.mSize << std::endl;
-	}
-	std::cout << std::endl;
-
-	std::cout << "Finding all sprites of entity 3" << std::endl;
-	std::vector<std::reference_wrapper<Sprite>> spriteOfEntity3 = ComponentManager::GetInstance().GetComponentsByID<Sprite>(gameObect3.mId);
-	for(Sprite& spriteEntity3 : spriteOfEntity3) {
-		std::cout << "Sprite of entity 3: " << spriteEntity3.mActive << std::endl;
-	}
-	std::cout << std::endl;
-
-	std::cout << "Finding all rigidbodies of entity 3" << std::endl;
-	std::vector<std::reference_wrapper<Rigidbody>> rigidbodyOfEntity3 = ComponentManager::GetInstance().GetComponentsByID<Rigidbody>(gameObect3.mId);
-	for(Rigidbody& rigidbodyEntity3 : rigidbodyOfEntity3) {
-		std::cout << "Rigidbody of entity 3: " << rigidbodyEntity3.mMass << " " << rigidbodyEntity3.mGravityScale << " " << rigidbodyEntity3.mBodyType << std::endl;
-	}
-	std::cout << std::endl;
-
-	std::cout << "Finding all sprites of all entities" << std::endl;
-	std::vector<std::pair<std::reference_wrapper<Sprite>, std::uint32_t>> sprites = ComponentManager::GetInstance().GetComponentsByType<Sprite>();
-	for(auto& [sprite, id] : sprites) {
-		std::cout << "Sprite of id: " << id << ": " << sprite.get().mActive << std::endl;
-	}
-	std::cout << std::endl;
-
-	std::cout << "Finding all coliders of all entities" << std::endl;
-	std::vector<std::pair<std::reference_wrapper<Colider>, std::uint32_t>> coliders = ComponentManager::GetInstance().GetComponentsByType<Colider>();
-	for(auto& [colider, id] : coliders) {
-		std::cout << "Colder of id: " << id << ": " << colider.get().mSize << std::endl;
-	}
-	std::cout << std::endl;
-
-	std::cout << "Finding all rigidbodies of all entities" << std::endl;
-	std::vector<std::pair<std::reference_wrapper<Rigidbody>, std::uint32_t>> rigidBodies = ComponentManager::GetInstance().GetComponentsByType<Rigidbody>();
-	for(auto& [rigidbody, id] : rigidBodies) {
-		std::cout << "Rigidbody of id: " << id << ": " << rigidbody.get().mMass << " " << rigidbody.get().mGravityScale << " " << rigidbody.get().mBodyType << std::endl;
-
-		rigidbody.get().mMass = -1;
-	}
-	std::cout << std::endl;
-
-	std::cout << "Finding all rigidbodies of all entities for the second time (after changing mMass to -1)" << std::endl;
-	std::vector<std::pair<std::reference_wrapper<Rigidbody>, std::uint32_t>> rigidBodies2 = ComponentManager::GetInstance().GetComponentsByType<Rigidbody>();
-	for(auto& [rigidbody2, id2] : rigidBodies2) {
-		std::cout << "Rigidbody of id: " << id2 << ": " << rigidbody2.get().mMass << " " << rigidbody2.get().mGravityScale << " " << rigidbody2.get().mBodyType << std::endl;
-	}
-	std::cout << std::endl;
-}