#include <tb_entity_manager.h>

Inheritance diagram for TurtleBrains::Game::EntityManager:

Public Types
typedef std::list< Entity * >	EntityList

Public Member Functions
	EntityManager (void)

virtual	~EntityManager (void)=0

void	ClearEntities (void)

void	AddEntity (Entity *entity)

void	AddEntity (Entity &entity)

void	RemoveEntity (Entity *entity)

void	RemoveEntities (const EntityType &byType=Entity::kInvalidType)

void	EntityTypeChanged (Entity &entity, const EntityTypeContainer &oldTypes)

EntityList	GetAllEntities (void)

EntityList	GetEntitiesByType (const EntityType &byType)

EntityList	GetEntitiesAt (const tbMath::Vector2 &point, const EntityType &byType=Entity::kInvalidType, bool onlyCollidableEntities=false)

EntityList	GetEntitiesWithin (const tbMath::Vector2 &center, const float radius, const EntityType &byType=Entity::kInvalidType, bool onlyCollidableEntities=false)

EntityList	GetEntitiesWithin (const tbMath::Vector2 &center, const float width, const float height, const EntityType &byType=Entity::kInvalidType, bool onlyCollidableEntities=false)

void	Simulate (void)

Public Member Functions inherited from TurtleBrains::Graphics::GraphicList
	GraphicList (void)

virtual	~GraphicList (void)

void	ClearGraphics (void)

void	AddGraphic (Graphic *graphic)

void	AddGraphic (Graphic &graphic)

void	RemoveGraphic (Graphic *graphic)

virtual void	SetColor (const tbGraphics::Color &newColor) override

Public Member Functions inherited from TurtleBrains::Graphics::Graphic
	Graphic (void)

	Graphic (const Graphic &other)

virtual	~Graphic (void)

bool	IsActive (void) const

void	SetActive (const bool isActive)

void	Update (const float deltaTime)

bool	IsVisible (void) const

void	SetVisible (const bool isVisible)

void	Render (void) const

const tbMath::Vector2 &	GetPosition (void) const

void	SetPosition (const float x, const float y)

void	SetPosition (const tbMath::Vector2 &position)

void	SetOrigin (const AnchorLocation &anchor, const tbMath::Vector2 &offset=tbMath::Vector2::Zero())

void	SetOrigin (const float originX, const float originY)

void	SetOrigin (const tbMath::Vector2 &origin)

float	GetDepth (void) const

void	SetDepth (const float newDepth)

const tbMath::Vector2 &	GetScale (void) const

void	SetScale (const float scale)

void	SetScale (const float scaleX, const float scaleY)

float	GetRotation (void) const

void	SetRotation (const float rotation)

void	SetScroll (const float scroll)

void	SetScroll (const float scrollX, const float scrollY)

bool	IsRelative (void) const

const Color &	GetColor (void) const

virtual PixelSpace	GetPixelWidth (void) const

virtual PixelSpace	GetPixelHeight (void) const

float	GetWidth (void) const

float	GetHeight (void) const

Protected Member Functions
virtual void	OnUpdate (const float deltaTime) override

Protected Member Functions inherited from TurtleBrains::Graphics::GraphicList
virtual void	OnRender (void) const override

Protected Member Functions inherited from TurtleBrains::Graphics::Graphic
virtual void	ApplyTransform (void) const

virtual void	PopTransform (void) const

Detailed Description

The EntityManager is a container of entities to perform Simulate, Update and Render on, as well as collisions and provides access to the entities by type or intersected areas. Entities added by AddEntity(Entity*) will be deleted when the entity is removed or EntityManager is destroyed while entities added by AddEntity(Entity&) are expected to remain available and in scope until removed.

Member Typedef Documentation

typedef std::list<Entity*> TurtleBrains::Game::EntityManager::EntityList

A simple list of entities.

Constructor & Destructor Documentation

TurtleBrains::Game::EntityManager::EntityManager ( void )

Constructs an empty entity object which contains no Graphics and position is defaults to 0,0.

virtual TurtleBrains::Game::EntityManager::~EntityManager ( void )

pure virtual

Destructs an entity which currently (TurtleBrains v0.2.0) does not have any resources to clean up after.

Member Function Documentation

void TurtleBrains::Game::EntityManager::AddEntity ( Entity * entity )

First creates an Entity by calling the EntityFactoryInterface CreateEntity() then adds the entity to be managed and accessed.

Note: This function currently is not implemented, undecided how the EntityFactoryInterface will register.

Adds an Entity to the manager in a few containers for the entity to be accessed, and it will be simulated, updated and rendered each frame while it exists in the EntityManager. When the Entity is removed from the manager it will be deleted, cleaned up and destroyed.

void TurtleBrains::Game::EntityManager::AddEntity ( Entity & entity )

Adds an Entity to the manager in a few containers for the entity to be accessed, and it will be simulated, updated and rendered each frame while it exists in the EntityManager. When the Entity is removed from the manager it will NOT be deleted or cleaned up, or destroyed. The EntityManager will not 'own' an entity added this way.

void TurtleBrains::Game::EntityManager::ClearEntities ( void )

Removes all entities from the EntityManager as soon as it is possible to do so.

void TurtleBrains::Game::EntityManager::EntityTypeChanged	(	Entity &	entity,
		const EntityTypeContainer &	oldTypes
	)

Removes the Entity from the EntityType containers and re-updates based on the new EntityTypes.

EntityList TurtleBrains::Game::EntityManager::GetAllEntities ( void )

Creates an EntityList containing all the entities and returns it for general use.

EntityList TurtleBrains::Game::EntityManager::GetEntitiesAt	(	const tbMath::Vector2 &	point,
		const EntityType &	byType = `Entity::kInvalidType`,
		bool	onlyCollidableEntities = `false`
	)

Checks all the entities with bounding volumes to see if the point is contained, returning an list of the entities that contain the point. If only collidableEntities is true, the returned list only contains entities that contain the point and are set to be collidable.

Parameters

point	the location to test in world space.
byType	only check entities of a specific type, of if Entity::kInvalidType is used, all entities regardless of the type.
onlyCollidableEntities	Set to true to check only the entities that are collidable.

Note: This will only get entities that the point collides with one of the bounding volumes, and requires the entity to have a bounding volume to work correctl.y

EntityList TurtleBrains::Game::EntityManager::GetEntitiesByType ( const EntityType & byType )

Creates an EntityList containing all the entities that have the EntityType byType.

EntityList TurtleBrains::Game::EntityManager::GetEntitiesWithin	(	const tbMath::Vector2 &	center,
		const float	radius,
		const EntityType &	byType = `Entity::kInvalidType`,
		bool	onlyCollidableEntities = `false`
	)

TODO: TurtleBrains: Documentation: Teach the user how to use this.

EntityList TurtleBrains::Game::EntityManager::GetEntitiesWithin	(	const tbMath::Vector2 &	center,
		const float	width,
		const float	height,
		const EntityType &	byType = `Entity::kInvalidType`,
		bool	onlyCollidableEntities = `false`
	)

TODO: TurtleBrains: Documentation: Teach the user how to use this.

virtual void TurtleBrains::Game::EntityManager::OnUpdate ( const float deltaTime )

overrideprotectedvirtual

Calls Update() on each of the entities, before removing any entities that may have expired.

Reimplemented from TurtleBrains::Graphics::GraphicList.

Reimplemented in TurtleBrains::Game::GameScene.

void TurtleBrains::Game::EntityManager::RemoveEntities ( const EntityType & byType = Entity::kInvalidType )

Marks entities for removal by type, or removes all entities if Entity::kInvalidType is used.

void TurtleBrains::Game::EntityManager::RemoveEntity ( Entity * entity )

Marks an Entity for removal from the EntityManger, the actual removal will happen at the end of either Simulate or Update to prevent modifying the container while iterating through it.

void TurtleBrains::Game::EntityManager::Simulate ( void )

Calls Simulate() on each of the entities, and then calls PerformCollision() to check for collision updates before finally removing any entities that may have expired during the simulate logic.

Public Types

Public Member Functions

Protected Member Functions

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation