FECS::Manager::EntityManager Class Reference

Manages entity lifecycle, including creation, destruction, and version tracking. More...

#include <entity_manager.h>

Public Member Functions
	EntityManager ()
	Constructs an empty EntityManager.
void	Reserve (std::uint32_t amount)
	Pre-allocates memory for a number of entities.
Entity	Create ()
	Creates a new Entity.
void	Destroy (Entity e)
	Destroys and entity and recycles its index.
bool	IsAlive (Entity e) const
	Checks whether an entity is still valid (alive).

Detailed Description

Manages entity lifecycle, including creation, destruction, and version tracking.

This class handles entity ID allocation using a freelist-based approach. It also maintains versioning for safe validation of entity references.

Member Function Documentation

Create()

Entity FECS::Manager::EntityManager::Create ( )

inline

Creates a new Entity.

If there are free slots available from destroyed entities, they are reused. Otherwise, a new index is assigned.

Returns

A new valid Entity ID with embedded version.

< First version is always 0

Destroy()

void FECS::Manager::EntityManager::Destroy ( Entity e )

inline

Destroys and entity and recycles its index.

The version at the entity's index is incremented to invalidate old references.

Parameters

e	The entity to destroy.

IsAlive()

bool FECS::Manager::EntityManager::IsAlive ( Entity e ) const

inline

Checks whether an entity is still valid (alive).

An entity is considered alive if its version matches the stored version.

Parameters

e	The entity to check.

Returns

Returns true if the entity is alive, false otherwise

Reserve()

void FECS::Manager::EntityManager::Reserve ( std::uint32_t amount )

inline

Pre-allocates memory for a number of entities.

Parameters

amount

Number of entities to reserve space for.

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The documentation for this class was generated from the following file:

• includes/fecs/manager/entity_manager.h