major update

-added custom Array container with iterator support and a space effecient bool specializaton
-changed tabs from spaces to indents
-renamed src/Classes to src/Entities

.gitignore

@@ -384,3 +384,5 @@ Makefile
 *.d
 
 *.ninja*
+
+.idea/

imgui.ini

@@ -11,6 +11,6 @@ Pos=60,60
 Size=536,286
 
 [Window][sdfkjasbdf]
-Pos=249,161
+Pos=679,86
 Size=610,481
 

include/Containers.h

@@ -0,0 +1,3 @@
+#pragma once
+
+#include <Containers/Array.h>

include/Containers/Array.h

@@ -0,0 +1,451 @@
+#pragma once
+
+#include "utility.h"
+#include <cstddef>
+#include <iterator>
+
+namespace container
+{
+
+
+template<typename T, EntityIndex capacity>
+class Array
+{
+public:
+	using data_type = T;
+	using pointer = data_type*;
+	using reference = data_type&;
+	using const_pointer = const pointer;
+	using const_reference = const data_type&;
+	using difference_type = std::ptrdiff_t;
+	using iterator_category = std::forward_iterator_tag;
+
+public:
+	class Iterator
+	{
+	public:
+		Iterator(const_pointer input)
+			: m_ptr(input)
+			{ }
+
+		Iterator& operator++()
+		{
+			m_ptr++;
+			return *this;
+		}
+
+		Iterator  operator++(int)
+		{
+			auto it = *this;
+			m_ptr++;
+			return it;
+		}
+
+		Iterator& operator--()
+		{
+			m_ptr--;
+			return *this;
+		}
+
+
+		Iterator  operator--(int) 
+		{
+			auto it = *this;
+			m_ptr++;
+			return it;
+		}
+
+
+		reference operator[](const int index) const { return m_ptr[index]; }
+		pointer operator->() const { return m_ptr; }
+		reference operator*() const { return *m_ptr; }
+
+		bool operator==(const Iterator& other) const { return m_ptr == other.m_ptr; }
+		bool operator!=(const Iterator& other) const { return m_ptr != other.m_ptr; }
+	private:
+		pointer m_ptr;
+	};
+
+	class ConstIterator
+	{
+	public:
+		ConstIterator(const_pointer input)
+			: m_ptr(input)
+			{ }
+
+		ConstIterator& operator++()
+		{
+			m_ptr++;
+			return *this;
+		}
+
+		ConstIterator  operator++(int)
+		{
+			auto it = *this;
+			m_ptr++;
+			return it;
+		}
+
+		ConstIterator& operator--()
+		{
+			m_ptr--;
+			return *this;
+		}
+
+
+		ConstIterator  operator--(int) 
+		{
+			auto it = *this;
+			m_ptr++;
+			return it;
+		}
+
+
+		const_reference operator[](const int index) const { return m_ptr[index]; }
+		const_pointer operator->() const { return m_ptr; }
+		const_reference operator*() const { return *m_ptr; }
+
+		bool operator==(const ConstIterator& other) const { return m_ptr == other.m_ptr; }
+		bool operator!=(const ConstIterator& other) const { return m_ptr != other.m_ptr; }
+
+	private:
+		pointer m_ptr;
+	};
+
+public:
+	Array() { m_data = new T[capacity]; }
+
+	~Array() { delete[] m_data; }
+
+	Array<T, capacity>(const Array<T, capacity>&) = delete;
+
+	Array(Array&& other)
+		: m_data(other.m_data)
+	{
+		other.m_data = nullptr;
+	}
+
+
+	Array& operator=(Array&& other)
+	{
+		if (this != &other)
+		{
+			delete[] m_data;
+			m_data = other.m_data;
+			other.m_data = nullptr;
+		}
+
+		return *this;
+	}
+
+
+	pointer data() { return m_data; }
+
+	reference operator[](const int index) { return m_data[index]; }
+
+	 const_reference operator[](const int index) const { return m_data[index]; }
+
+	inline constexpr EntityIndex size() { return capacity; }
+
+	Iterator begin() { return Iterator(m_data); }
+	Iterator end()   { return Iterator(m_data + capacity); }
+
+	ConstIterator cbegin() const { return ConstIterator(m_data); }
+	ConstIterator cend()   const { return ConstIterator(m_data + capacity); }
+
+private:
+	pointer m_data;
+
+};
+
+
+template <EntityIndex capacity>
+class Array<bool, capacity>
+{
+public:
+	class reference;
+	class const_reference;
+	using data_type = u8;
+	using pointer = reference;
+	using const_pointer = const_reference;
+	using difference_type = std::ptrdiff_t;
+	using iterator_category = std::forward_iterator_tag;
+
+public:
+	class reference
+	{
+		friend class Array;
+		reference(data_type* ptr_in, u8 mask_in)
+		: m_ptr(ptr_in)
+		, m_mask(mask_in)
+		{
+
+		}
+
+	public:
+	~reference()
+	{ }
+
+	reference(const reference&) = default;
+
+	operator bool () const 
+	{
+		return !!(*m_ptr & m_mask);
+	}
+
+	reference& operator=(bool input)
+	{
+		if (input)
+		{
+			*m_ptr |= m_mask;
+		}
+		else 
+		{
+			*m_ptr &= m_mask;
+		}
+		return *this;
+	}
+
+	reference& operator=(const reference& other)
+	{
+		return *this = bool(other);
+	}
+
+	void flip()
+	{
+		*m_ptr ^= m_mask;
+	}
+
+	private:
+		data_type* m_ptr;
+		u8 m_mask;
+	};
+
+	class const_reference
+	{ 
+		friend class Array;
+		const_reference(data_type* ptr_in, u8 mask_in)
+		: m_ptr(ptr_in)
+		, m_mask(mask_in)
+		{ }
+
+	public:
+		~const_reference()
+		{ }
+
+		const_reference(const const_reference&) = delete;
+
+		operator bool () const { return !!(*m_ptr & m_mask); }
+
+		const_reference& operator=(bool) = delete;
+
+		const_reference& operator=(const const_reference& other) = delete;
+		const_reference& operator=(const reference& other) = delete;
+		void flip() = delete;
+
+	private:
+		const data_type* m_ptr;
+		u8 m_mask;
+	};
+
+
+	class Iterator
+	{
+	public:
+		Iterator(data_type* input, u8 index)
+			: m_ptr(input)
+			, m_currentClusterIndex(index)
+		{ }
+
+		Iterator& operator++()
+		{
+			if (m_currentClusterIndex++ == 7)
+			{
+				m_currentClusterIndex = 0;
+				m_ptr++;
+			}
+			
+			return *this;
+		}
+
+		Iterator  operator++(int)
+		{
+			auto it = *this;
+			if (m_currentClusterIndex++ == 7)
+			{
+				m_ptr++;
+				m_currentClusterIndex = 0;
+			}
+
+			return it;
+		}
+
+		Iterator& operator--()
+		{
+			if (m_currentClusterIndex-- == 0)
+			{
+				m_ptr--;
+				m_currentClusterIndex = 7;
+			}
+
+			return *this;
+		}
+
+		Iterator  operator--(int)
+		{
+			auto it = *this;
+			if (m_currentClusterIndex-- == 0)
+			{
+				m_ptr--;
+				m_currentClusterIndex = 7;
+			}
+
+			return it;
+		}
+
+		bool operator[](const int) = delete;
+		reference operator*() const
+		{
+			return reference(m_ptr, 1 << m_currentClusterIndex);
+		}
+
+		bool operator==(const Iterator& other) const
+		{
+			return (m_ptr == other.m_ptr) && (m_currentClusterIndex == other.m_currentClusterIndex);
+		}
+
+		bool operator!=(const Iterator& other) const
+		{
+			return (m_ptr != other.m_ptr) || (m_currentClusterIndex != other.m_currentClusterIndex);
+		}
+
+	private:
+		data_type* m_ptr;
+		u8 m_currentClusterIndex{};
+	};
+
+	class ConstIterator
+	{
+	public:
+		ConstIterator(const data_type* input, u8 index)
+			: m_ptr(input)
+			, m_currentClusterIndex(index)
+		{ }
+
+		ConstIterator& operator++()
+		{
+			if (m_currentClusterIndex++ == 7)
+			{
+				m_currentClusterIndex = 0;
+				m_ptr++;
+			}
+			
+			return *this;
+		}
+
+		ConstIterator  operator++(int)
+		{
+			auto it = *this;
+			if (m_currentClusterIndex++ == 7)
+			{
+				m_ptr++;
+				m_currentClusterIndex = 0;
+			}
+
+			return it;
+		}
+
+		ConstIterator& operator--()
+		{
+			if (m_currentClusterIndex-- == 0)
+			{
+				m_ptr--;
+				m_currentClusterIndex = 7;
+			}
+
+			return *this;
+		}
+
+		ConstIterator  operator--(int)
+		{
+			auto it = *this;
+			if (m_currentClusterIndex-- == 0)
+			{
+				m_ptr--;
+				m_currentClusterIndex = 7;
+			}
+
+			return it;
+		}
+
+		bool operator[](const int) = delete;
+		const_reference operator*() const 
+		{
+			return const_reference(m_ptr, 1 << m_currentClusterIndex);
+		}
+
+		bool operator==(const ConstIterator& other) const 
+		{ return (m_ptr == other.m_ptr) && (m_currentClusterIndex == other.m_currentClusterIndex); }
+
+
+		bool operator!=(const ConstIterator& other) const 
+		{ return (m_ptr != other.m_ptr) || (m_currentClusterIndex != other.m_currentClusterIndex); }
+
+	private:
+		const data_type* m_ptr;
+		u8 m_currentClusterIndex{};
+	};
+
+public:
+	Array() { m_data = new data_type[(capacity / 8) + 1]; }
+
+	~Array() { delete[] m_data; }
+
+	Array<bool, capacity>(const Array<bool, capacity>&) = delete;
+
+	Array(Array&& other)
+		: m_data(other.m_data)
+	{
+		other.m_data = nullptr;
+	}
+
+	Array& operator=(Array&& other) 
+	{
+		if (this != &other)
+		{
+			delete[] m_data;
+			m_data = other.m_data;
+			other.m_data = nullptr;
+		}
+		
+		return *this;
+	}
+
+	data_type* data() { return m_data; }
+
+	//use readAt() instead
+	reference operator[](int index)
+	{
+		return reference(m_data + (index / 8), 1 << (index % 8));
+	}
+
+	inline constexpr EntityIndex size() { return capacity; }
+
+	bool readAt(const int index) const { return m_data[index / 8] & (1 << (index % 8)); } 
+
+	void setTrueAt(const int index) { m_data[index / 8] |= (1 << (index % 8)); }
+
+	void setFalseAt(const int index) { m_data[index / 8] &= ~(1 << (index % 8)); }
+
+	Iterator begin() { return Iterator(m_data, 0); }
+	Iterator end()   { return Iterator(m_data + (capacity / 8), capacity % 8); }
+
+	ConstIterator cbegin() const { return ConstIterator(m_data, 0); }
+	ConstIterator cend()   const { return ConstIterator(m_data + (capacity / 8), capacity % 8); }
+
+private:
+	data_type* m_data;
+
+};
+
+}//namespace

include/Entities/Components.h

@@ -17,11 +17,11 @@ public:
 	sf::Vector2f position{};
 	sf::Vector2f speed{};
 
-  Transform() = default;
-  Transform(sf::Vector2f position_in, sf::Vector2f speed_in)
-    : position(position_in)
-    , speed(speed_in)
-    { }
+	Transform() = default;
+	Transform(sf::Vector2f position_in, sf::Vector2f speed_in)
+		: position(position_in)
+		, speed(speed_in)
+		{ }
 
 };
 

include/Entities/Entity.h

@@ -11,31 +11,31 @@ class Entity
 //private:
 public:
 	friend class EntityManager;
-  friend class EntityViewIterator;
-  friend class EntityViewConstIterator;
+	friend class EntityViewIterator;
+	friend class EntityViewConstIterator;
 
 	Entity() = delete;
-  Entity(EntityIndex);
+	Entity(EntityIndex);
 
 public:
-  template<typename T>
-  bool hasComponent() const;
+	template<typename T>
+	bool hasComponent() const;
 
-  template<typename T>
-  T& getComponent() const;
+	template<typename T>
+	T& getComponent() const;
 
-  template<typename T>
-  T& getComponent();
+	template<typename T>
+	T& getComponent();
 
-  template<typename T>
-  void addComponent(const T&&);
+	template<typename T>
+	void addComponent(const T&&);
 
-  EntityIndex id() const;
+	EntityIndex id() const;
 
-  EntityTag tag() const;
+	EntityTag tag() const;
 
-  bool isAlive() const;
+	bool isAlive() const;
 
 private:
-	EntityIndex m_id;
+	EntityIndex m_index;
 };

include/Entities/EntityManager.h

@@ -8,12 +8,14 @@
 
 class EntityManager
 {
+public:
+	void update();
 private:
-  EntityView getEntiites(EntityTag);
+	EntityView getEntiites(EntityTag);
 
-  inline Entity player();
+	inline Entity player();
 private:  
-  Entity m_player{0};
-  std::array<u16, tagCount> m_numEntitiesByTag{};
-  u16 m_numEntities{};
+	Entity m_player{0};
+	std::array<u16, tagCount> m_numEntitiesByTag{};
+	u16 m_numEntities{};
 };

include/Entities/EntityMemoryPool.h

@@ -1,5 +1,7 @@
 #pragma once
 
+#include "utility.h"
+#include <cstddef>
 #include <tuple>
 #include <vector>
 
@@ -19,6 +21,7 @@ private:
 	ComponentVectorTuple m_components;
 	std::vector<EntityTag> m_tags;
 	std::vector<bool> m_aliveStates;
+	std::vector<size_t> m_ids;
 	
 private:
 	EntityMemoryPool();
@@ -26,20 +29,22 @@ private:
 	EntityMemoryPool(const EntityMemoryPool&) = delete;
 
 public:
-  static EntityMemoryPool& instance();
+	static EntityMemoryPool& instance();
 
-  template<typename T>
-  bool hasComponent(EntityIndex) const;
+	template<typename T>
+	bool hasComponent(EntityIndex) const;
 	
-  template<typename T>
-  T& getComponent(EntityIndex) const;
+	template<typename T>
+	T& getComponent(EntityIndex) const;
 
-  template<typename T>
-  T& getComponent(EntityIndex);
+	template<typename T>
+	T& getComponent(EntityIndex);
 
-  EntityTag getTag(EntityIndex) const;
+	EntityTag getTag(EntityIndex) const;
 
-  bool getAlive(EntityIndex) const;
+	bool getAlive(EntityIndex) const;
 
-  void removeEntity(EntityIndex);
+	size_t getId(EntityIndex) const;
+
+	void removeEntity(EntityIndex);
 };

include/Entities/EntityView.h

@@ -7,77 +7,72 @@ class EntityView;
 
 class EntityViewIterator
 {
-  friend class EntityView;
+	friend class EntityView;
 
-  EntityViewIterator(EntityIndex);
+	EntityViewIterator(EntityIndex);
 
-  EntityViewIterator& operator++();
+	EntityViewIterator& operator++();
 
-  EntityViewIterator operator++(int);
+	EntityViewIterator operator++(int);
 
-  EntityViewIterator& operator--();
+	EntityViewIterator& operator--();
 
-  EntityViewIterator operator--(int);
+	EntityViewIterator operator--(int);
 
-  Entity operator*();
+	Entity operator*();
 
-  Entity operator[](int);
-  Entity* operator->();
+	Entity operator[](int);
 
-  bool operator==(EntityViewIterator);
-  bool operator!=(EntityViewIterator);
+	bool operator==(EntityViewIterator);
+	bool operator!=(EntityViewIterator);
 
 private:
-  Entity m_currentEntity;
+	EntityIndex m_currentEntity;
 };
 
 class EntityViewConstIterator
 {
-  friend class EntityView;
+	friend class EntityView;
 	
-  EntityViewConstIterator(EntityIndex index);
+	EntityViewConstIterator(EntityIndex index);
 
-  EntityViewConstIterator& operator++();
+	EntityViewConstIterator& operator++();
 
-  EntityViewConstIterator operator++(int);
+	EntityViewConstIterator operator++(int);
 
-  EntityViewConstIterator& operator--();
+	EntityViewConstIterator& operator--();
 
-  EntityViewConstIterator operator--(int);
+	EntityViewConstIterator operator--(int);
 
-  const Entity operator*();
+	const Entity operator*();
 
-  const Entity operator[](int index);
-
-  const Entity* operator->();
+	const Entity operator[](int index);
 
 
-  bool operator==(EntityViewConstIterator);
-  bool operator!=(EntityViewConstIterator);
+	bool operator==(EntityViewConstIterator);
+	bool operator!=(EntityViewConstIterator);
 
 private:
-  Entity m_currentEntity;
+	EntityIndex m_currentEntity;
 };
 
 class EntityView
 {
 public:
-  friend class EntityManager;
-  EntityView() = delete;
-  EntityView(EntityIndex, EntityIndex);
+	friend class EntityManager;
+	EntityView() = delete;
+	EntityView(EntityIndex, EntityIndex);
 
-  using iterator = EntityViewIterator;
-  using const_iterator = EntityViewConstIterator;
+	using iterator = EntityViewIterator;
+	using const_iterator = EntityViewConstIterator;
 
-  iterator begin() { return iterator(m_start); }
-  iterator end()   { return iterator(m_start + m_size); }
+	iterator begin() { return iterator(m_start); }
+	iterator end()   { return iterator(m_start + m_size); }
 
-
-
-  const_iterator cbegin() const { return const_iterator(m_start); }
-  const_iterator cend()   const { return const_iterator(m_start + m_size); }
+	const_iterator cbegin() const { return const_iterator(m_start); }
+	const_iterator cend()   const { return const_iterator(m_start + m_size); }
 private:
-  EntityIndex m_start;
-  EntityIndex m_size;
+	EntityIndex m_start;
+	EntityIndex m_size;
 };
 

include/log.h

@@ -3,7 +3,9 @@
 #include <iostream>
 
 #ifdef LOG_ENABLE
+#define LOG_CONDITON(x) if (x)
 #define LOG(x) std::cout << x << "\n"
 #else
 #define LOG(x)
+#define LOG_CONDITON(x)
 #endif

include/utility.h

@@ -17,10 +17,10 @@ using EntityIndex = u16;
 
 enum EntityTag : u8
 {
-  player,
-  tile,
-  enemy,
-  tagCount
+	player,
+	tile,
+	enemy,
+	tagCount
 };
 
 
@@ -29,28 +29,32 @@ namespace util
 {
 	using namespace std::string_view_literals;
 
-
-  inline constexpr EntityIndex MAX_ENTITIES {60'000u};
-  inline constexpr EntityIndex MAX_TILES {1'000u};
-  inline constexpr EntityIndex MAX_ENEMIES {1'000u};
+	inline constexpr EntityIndex MAX_PLAYERS{1u};
+	inline constexpr EntityIndex MAX_TILES {1'000u};
+	inline constexpr EntityIndex MAX_ENEMIES {1'000u};
+	inline constexpr EntityIndex MAX_ENTITIES {MAX_PLAYERS + MAX_TILES + MAX_ENEMIES};
 
 	// used for imgui
 	inline constexpr std::array<const char*, tagCount> tagStringsC =
 	{
-		"player"
+		"player",
+		"tile",
+		"enemy"
 	};
 
 	inline constexpr std::array<std::string_view, tagCount> tagStrings =
 	{
-		"player"sv
+		"player"sv,
+		"tile"sv,
+		"enemy"sv
 	};
 
-  inline constexpr std::array<EntityIndex, tagCount> tagStart = 
-  {
-    0,//player
-    1,//tile start
-    MAX_TILES,//enemy start
-  };
+	inline constexpr std::array<EntityIndex, tagCount> tagStart = 
+	{
+		0,//player
+		1,//tile start
+		MAX_TILES,//enemy start
+	};
 }
 
 

src/Classes/Entity.cpp

@@ -1,52 +0,0 @@
-#include <Entities/Entity.h>
-#include <Entities/Components.h>
-#include <Entities/EntityMemoryPool.h>
-
-#include <utility.h>
-
-Entity::Entity(EntityIndex id_in)
-  : m_id(id_in)
-{
-
-}
-
-template<typename T>
-bool Entity::hasComponent() const 
-{
-  return EntityMemoryPool::instance().hasComponent<T>(m_id);
-}
-
-template<typename T>
-T& Entity::getComponent() const
-{
-  return EntityMemoryPool::instance().getComponent<T>(m_id);
-}
-
-template<typename T>
-T& Entity::getComponent()
-{
-  return EntityMemoryPool::instance().getComponent<T>(m_id);
-}
-
-template<typename T>
-void Entity::addComponent(const T&& data)
-{
-  T& component = EntityMemoryPool::instance().getComponent<T>(m_id);
-  component = data;
-  component.active = true;
-}
-
-EntityIndex Entity::id() const
-{
-  return m_id;
-}
-
-EntityTag Entity::tag() const
-{
-  return EntityMemoryPool::instance().getTag(m_id);
-}
-
-bool Entity::isAlive() const
-{
-  return EntityMemoryPool::instance().getAlive(m_id);
-}

src/Classes/EntityMemoryPool.cpp

@@ -1,52 +0,0 @@
-#include <Entities/EntityMemoryPool.h>
-
-#include <Entities/Entity.h>
-#include <vector>
-#include <utility.h>
-
-EntityMemoryPool::EntityMemoryPool()
-{
-	std::apply([=](auto&&... args) {((args.reserve(util::MAX_ENTITIES)), ...); }, m_components);
-  m_tags.reserve(util::MAX_ENTITIES);
-  m_aliveStates.reserve(util::MAX_ENTITIES);
-}
-
-EntityMemoryPool& EntityMemoryPool::instance()
-{
-  static EntityMemoryPool pool{};
-  return pool;
-}
-
-template<typename T>
-bool EntityMemoryPool::hasComponent(EntityIndex id) const
-{
-  return std::get<std::vector<T>>(m_components)[id].active;
-}
-
-template<typename T>
-T& EntityMemoryPool::getComponent(EntityIndex id) const
-{
-  return std::get<std::vector<T>>(m_components)[id];
-}
-
-template<typename T>
-T& EntityMemoryPool::getComponent(EntityIndex id)
-{
-  return std::get<std::vector<T>>(m_components)[id];
-}
-
-EntityTag EntityMemoryPool::getTag(EntityIndex id) const 
-{
-  return m_tags[id];
-}
-
-bool EntityMemoryPool::getAlive(EntityIndex id) const
-{
-  return m_aliveStates[id];
-}
-
-void EntityMemoryPool::removeEntity(EntityIndex id)
-{
-  m_aliveStates[id] = false;
-  return;
-}

src/Entities/Entity.cpp

@@ -0,0 +1,52 @@
+#include <Entities/Entity.h>
+#include <Entities/Components.h>
+#include <Entities/EntityMemoryPool.h>
+
+#include <utility.h>
+
+Entity::Entity(EntityIndex index_in)
+	: m_index(index_in)
+{
+
+}
+
+template<typename T>
+bool Entity::hasComponent() const 
+{
+	return EntityMemoryPool::instance().hasComponent<T>(m_index);
+}
+
+template<typename T>
+T& Entity::getComponent() const
+{
+	return EntityMemoryPool::instance().getComponent<T>(m_index);
+}
+
+template<typename T>
+T& Entity::getComponent()
+{
+	return EntityMemoryPool::instance().getComponent<T>(m_index);
+}
+
+template<typename T>
+void Entity::addComponent(const T&& data)
+{
+	T& component = EntityMemoryPool::instance().getComponent<T>(m_index);
+	component = data;
+	component.active = true;
+}
+
+EntityIndex Entity::id() const
+{
+	return EntityMemoryPool::instance().getId(m_index);
+}
+
+EntityTag Entity::tag() const
+{
+	return EntityMemoryPool::instance().getTag(m_index);
+}
+
+bool Entity::isAlive() const
+{
+	return EntityMemoryPool::instance().getAlive(m_index);
+}

src/Entities/EntityManager.cpp

@@ -5,12 +5,17 @@
 
 inline constexpr EntityIndex PLAYER_INDEX = 0;
 
+void EntityManager::update()
+{
+	
+}
+
 inline Entity EntityManager::player()
 {
-  return m_player;
+	return m_player;
 }
 
 EntityView EntityManager::getEntiites(EntityTag tag)
 {
-  return EntityView(util::tagStart[tag], m_numEntitiesByTag[tag]);
+	return EntityView(util::tagStart[tag], m_numEntitiesByTag[tag]);
 }

src/Entities/EntityMemoryPool.cpp

@@ -0,0 +1,58 @@
+#include <Entities/EntityMemoryPool.h>
+
+#include <Entities/Entity.h>
+#include <cstddef>
+#include <vector>
+#include <utility.h>
+
+EntityMemoryPool::EntityMemoryPool()
+{
+	std::apply([=](auto&&... args) {((args.reserve(util::MAX_ENTITIES)), ...); }, m_components);
+	m_tags.reserve(util::MAX_ENTITIES);
+	m_aliveStates.reserve(util::MAX_ENTITIES);
+}
+
+EntityMemoryPool& EntityMemoryPool::instance()
+{
+	static EntityMemoryPool pool{};
+	return pool;
+}
+
+template<typename T>
+bool EntityMemoryPool::hasComponent(EntityIndex index) const
+{
+	return std::get<std::vector<T>>(m_components)[index].active;
+}
+
+template<typename T>
+T& EntityMemoryPool::getComponent(EntityIndex index) const
+{
+	return std::get<std::vector<T>>(m_components)[index];
+}
+
+template<typename T>
+T& EntityMemoryPool::getComponent(EntityIndex index)
+{
+	return std::get<std::vector<T>>(m_components)[index];
+}
+
+EntityTag EntityMemoryPool::getTag(EntityIndex index) const 
+{
+	return m_tags[index];
+}
+
+bool EntityMemoryPool::getAlive(EntityIndex index) const
+{
+	return m_aliveStates[index];
+}
+
+size_t EntityMemoryPool::getId(EntityIndex index) const 
+{
+	return m_ids[index];
+}
+
+void EntityMemoryPool::removeEntity(EntityIndex index)
+{
+	m_aliveStates[index] = false;
+	return;
+}

src/Entities/EntityView.cpp

@@ -3,8 +3,8 @@
 #include "utility.h"
 
 EntityView::EntityView(EntityIndex start, EntityIndex size)
-  : m_start(start)
-  , m_size(size)
+	: m_start(start)
+	, m_size(size)
 {
 
 }
@@ -12,112 +12,102 @@ EntityView::EntityView(EntityIndex start, EntityIndex size)
 
 //non-const iterator
 EntityViewIterator::EntityViewIterator(EntityIndex index)
-  : m_currentEntity(index)
+	: m_currentEntity(index)
 {
 
 }
 
 EntityViewIterator& EntityViewIterator::operator++()
 {
-  m_currentEntity.m_id++;
-  return *this;
+	m_currentEntity++;
+	return *this;
 }
 
 EntityViewIterator EntityViewIterator::operator++(int)
 {
-  m_currentEntity.m_id++;
-  return m_currentEntity.m_id - 1;
+	m_currentEntity++;
+	return m_currentEntity - 1;
 }
 
 EntityViewIterator& EntityViewIterator::operator--()
 {
-  m_currentEntity.m_id--;
-  return *this;
+	m_currentEntity--;
+	return *this;
 }
 
 EntityViewIterator EntityViewIterator::operator--(int)
 {
-  m_currentEntity.m_id--;
-  return m_currentEntity.m_id + 1;
+	m_currentEntity--;
+	return m_currentEntity + 1;
 }
 
 Entity EntityViewIterator::operator*()
 {
-  return m_currentEntity;
+	return m_currentEntity;
 }
 
 Entity EntityViewIterator::operator[](int index)
 {
-  return m_currentEntity.m_id + index;
-}
-
-Entity* EntityViewIterator::operator->()
-{
-  return &m_currentEntity;
+	return m_currentEntity + index;
 }
 
 bool EntityViewIterator::operator==(EntityViewIterator other)
 {
-  return m_currentEntity.m_id == other->m_id;
+	return m_currentEntity == other.m_currentEntity;
 }
 
 bool EntityViewIterator::operator!=(EntityViewIterator other)
 {
-  return m_currentEntity.m_id != other->m_id;
+	return m_currentEntity != other.m_currentEntity;
 }
 
 //const iterator
 EntityViewConstIterator::EntityViewConstIterator(EntityIndex index)
-  : m_currentEntity(index)
+	: m_currentEntity(index)
 {
 
 }
 
 EntityViewConstIterator& EntityViewConstIterator::operator++()
 {
-  m_currentEntity.m_id++;
-  return *this;
+	m_currentEntity++;
+	return *this;
 }
 
 EntityViewConstIterator EntityViewConstIterator::operator++(int)
 {
-  m_currentEntity.m_id++;
-  return m_currentEntity.m_id - 1;
+	m_currentEntity++;
+	return m_currentEntity - 1;
 }
 
 EntityViewConstIterator& EntityViewConstIterator::operator--()
 {
-  m_currentEntity.m_id--;
-  return *this;
+	m_currentEntity--;
+	return *this;
 }
 
 EntityViewConstIterator EntityViewConstIterator::operator--(int)
 {
-  m_currentEntity.m_id--;
-  return m_currentEntity.m_id + 1;
+	m_currentEntity--;
+	return m_currentEntity + 1;
 }
 
 const Entity EntityViewConstIterator::operator*()
 {
-  return m_currentEntity;
+	return m_currentEntity;
 }
 
 const Entity EntityViewConstIterator::operator[](int index)
 {
-  return m_currentEntity.m_id + index;
-}
-
-const Entity* EntityViewConstIterator::operator->()
-{
-  return &m_currentEntity;
+	return m_currentEntity + index;
 }
 
 bool EntityViewConstIterator::operator==(EntityViewConstIterator other)
 {
-  return m_currentEntity.m_id == other->m_id;
+	return m_currentEntity == other.m_currentEntity;
 }
 
 bool EntityViewConstIterator::operator!=(EntityViewConstIterator other)
 {
-  return m_currentEntity.m_id != other->m_id;
+	return m_currentEntity != other.m_currentEntity;
 }

src/main.cpp

@@ -1,4 +1,6 @@
 
+#include "Containers/Array.h"
+#include "log.h"
 #include <SFML/Graphics.hpp>
 #include <imgui-SFML.h>
 #include <imgui.h>
@@ -10,34 +12,35 @@
 
 int main()
 {
+	container::Array<bool, 3> arr;
 
-  auto window = sf::RenderWindow(sf::VideoMode({ 1920u, 1080u }), "Fake Mario");
-  window.setFramerateLimit(144);
-  if (!ImGui::SFML::Init(window))
-    return -1;
+	auto window = sf::RenderWindow(sf::VideoMode({ 1920u, 1080u }), "Fake Mario");
+	window.setFramerateLimit(144);
+	if (!ImGui::SFML::Init(window))
+		return -1;
 
-  sf::Clock clock;
-  while (window.isOpen())
-  {
-    while (const std::optional event = window.pollEvent())
-    {
-      ImGui::SFML::ProcessEvent(window, *event);
+	sf::Clock clock;
+	while (window.isOpen())
+	{
+		while (const std::optional event = window.pollEvent())
+		{
+			ImGui::SFML::ProcessEvent(window, *event);
 
-      if (event->is<sf::Event::Closed>())
-      {
-        window.close();
-      }
-    }// end user input loop
+			if (event->is<sf::Event::Closed>())
+			{
+				window.close();
+			}
+		}// end user input loop
 
-    ImGui::SFML::Update(window, clock.restart());
+		ImGui::SFML::Update(window, clock.restart());
 
-    ImGui::Begin("sdfkjasbdf");
-    ImGui::End();
-    window.clear();
-    ImGui::SFML::Render(window);
-    window.display();
-  }
+		ImGui::Begin("sdfkjasbdf");
+		ImGui::End();
+		window.clear();
+		ImGui::SFML::Render(window);
+		window.display();
+	}
 
-  ImGui::SFML::Shutdown();
+	ImGui::SFML::Shutdown();
 	
 }