Entity

Constructors

this

this(EntityManager manager, Id id)

Undocumented in source.

Members

Functions

component

C* component()

Get a component pointer of the entity.

component

void component(C c)

Set the value of a component of the entity.

destroy

void destroy()

Destroy the entity (unregister all attached components).

id

Id id()

Returns the id of the entity.

invalidate

void invalidate()

Invalidate the entity instance (but does not destroy it).

isRegistered

bool isRegistered()

Tell whether a component is registered to the entity.

iterate

void iterate()

Iterate over the components registered to the entity. It calls the accessor delegate that has been set to each component.

opEquals

bool opEquals(Entity e)

Compare two entities and tells whether they are the same (same id).

register

C* register(Args args)

Register a component C to an entity.

toString

string toString()

Returns a string representation of an entity.

unregister

void unregister()

Unregister a component C from an entity.

valid

bool valid()

Tells whether the entity is valid.

Structs

Id

struct Id

Undocumented in source.

Variables

invalid

enum Id invalid;

Undocumented in source.

@component struct Position
{
    float x, y;
}

auto em = new EntityManager(new EventManager);
auto entity = em.create();
auto posCompPtr = entity.register!Position(2.0, 3.0);

assert(posCompPtr == entity.component!Position);
assert(posCompPtr.x == 2.0);
assert(entity.component!Position.y == 3.0);

• EntityManager

• Entity