API docs
Entity

Entity

Mojo struct 🡭

Entity

@register_passable_trivial
struct Entity

Entity identifier. Holds an entity ID and it’s generation for recycling.

Entities are only created via the World, using World.add_entity.

⚠️ Important: Entities are intended to be stored and passed around via copy, not via pointers! The zero value should be used to indicate “nil”, and can be checked with Entity.is_zero.

Implemented traits

AnyType, Boolable, Copyable, Equatable, Hashable, ImplicitlyCopyable, ImplicitlyDeletable, Movable, RegisterPassable, TrivialRegisterPassable, Writable

Methods

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__init__ 

fn def __init__(accessor: EntityAccessor) -> Self

Initializes the entity from an EntityAccessor. Args:

  • accessor (EntityAccessor): The entity accessor to initialize from.

Returns:

Self

__bool__ 

fn def __bool__(self) -> Bool

Returns whether this entity is not the zero entity. Args:

  • self (Self)

Returns:

Bool

__eq__ 

fn def __eq__(self, other: Self) -> Bool

Compares two entities for equality. Args:

  • self (Self)
  • other (Self): The other entity to compare to.

Returns:

Bool

__ne__ 

fn def __ne__(self, other: Self) -> Bool

Compares two entities for inequality. Args:

  • self (Self)
  • other (Self): The other entity to compare to.

Returns:

Bool

__str__ 

fn def __str__(self) -> String

Returns a string representation of the entity. Args:

  • self (Self)

Returns:

String

__hash__ 

fn def __hash__[H: Hasher](self, mut hasher: H)

Returns a unique hash of the entity. Parameters:

  • H (Hasher)

Args:

  • self (Self)
  • hasher (H)

get_id 

fn def get_id(self) -> EntityId

Returns the entity’s ID. Args:

  • self (Self)

Returns:

EntityId

get_generation 

fn def get_generation(self) -> UInt32

Returns the entity’s generation. Args:

  • self (Self)

Returns:

UInt32

is_zero 

fn def is_zero(self) -> Bool

Returns whether this entity is the reserved zero entity. Args:

  • self (Self)

Returns:

Bool

EntityAccessor