AZ::EntityId Class Reference

#include <EntityId.h>

Inherited by AZ::NamedEntityId.

Public Member Functions
	AZ_CLASS_ALLOCATOR (EntityId, EntityAllocator)
	AZ_TYPE_INFO (EntityId, "{6383F1D3-BB27-4E6B-A49A-6409B2059EAA}")
AZ_FORCE_INLINE	EntityId (u64 id=InvalidEntityId)
AZ_FORCE_INLINE	operator u64 () const
AZ_FORCE_INLINE bool	IsValid () const
AZ_FORCE_INLINE void	SetInvalid ()
AZStd::string	ToString () const
AZ_FORCE_INLINE bool	operator== (const EntityId &rhs) const
AZ_FORCE_INLINE bool	operator!= (const EntityId &rhs) const
AZ_FORCE_INLINE bool	operator< (const EntityId &rhs) const
AZ_FORCE_INLINE bool	operator> (const EntityId &rhs) const

Static Public Attributes
static constexpr u64	InvalidEntityId = 0x00000000FFFFFFFFull

Protected Attributes
u64	m_id

Friends
class	JsonEntityIdSerializer
class	Entity

Detailed Description

Entity ID type. Entity IDs are used to uniquely identify entities. Each component that is attached to an entity is tagged with the entity's ID, and component buses are typically addressed by entity ID.

Constructor & Destructor Documentation

EntityId()

AZ_FORCE_INLINE AZ::EntityId::EntityId ( u64  id = InvalidEntityId )

inlineexplicit

Creates an entity ID instance. If you do not provide a value for the entity ID, the entity ID is set to an invalid value.

Parameters

id	(Optional) An ID for the entity.

Member Function Documentation

AZ_TYPE_INFO()

AZ::EntityId::AZ_TYPE_INFO	(	EntityId	,
		"{6383F1D3-BB27-4E6B-A49A-6409B2059EAA}"
	)

Enables this class to be identified across modules and serialized into different contexts.

IsValid()

AZ_FORCE_INLINE bool AZ::EntityId::IsValid ( ) const

inline

Determines whether this entity ID is valid. An entity ID is invalid if you did not provide an argument to the entity ID constructor.

Returns

Returns true if the entity ID is valid. Otherwise, false.

operator u64()

AZ_FORCE_INLINE AZ::EntityId::operator u64 ( ) const

inlineexplicit

Casts the entity ID to u64.

Returns

The entity ID.

operator!=()

AZ_FORCE_INLINE bool AZ::EntityId::operator!= ( const EntityId &  rhs ) const

inline

Compares two entity IDs.

Parameters

rhs	An entity ID whose value you want to compare to the given entity ID.

Returns

True if the entity IDs are different. Otherwise, false.

operator<()

AZ_FORCE_INLINE bool AZ::EntityId::operator< ( const EntityId &  rhs ) const

inline

Evaluates whether the entity ID is less than a given entity ID.

Parameters

rhs	An entity ID whose size you want to compare to the given entity ID.

Returns

True if the entity ID is less than the given entity ID. Otherwise, false.

operator==()

AZ_FORCE_INLINE bool AZ::EntityId::operator== ( const EntityId &  rhs ) const

inline

Compares two entity IDs for equality.

Parameters

rhs	An entity ID whose value you want to compare to the given entity ID.

Returns

True if the entity IDs are equal. Otherwise, false.

operator>()

AZ_FORCE_INLINE bool AZ::EntityId::operator> ( const EntityId &  rhs ) const

inline

Evaluates whether the entity ID is greater than a given entity ID.

Parameters

rhs	An entity ID whose size you want to compare to the given entity ID.

Returns

True if the entity ID is greater than the given entity ID. Otherwise, false.

SetInvalid()

AZ_FORCE_INLINE void AZ::EntityId::SetInvalid ( )

inline

Sets the entity ID to an invalid value.

ToString()

AZStd::string AZ::EntityId::ToString ( ) const

inline

Returns the entity ID as a string.

Member Data Documentation

InvalidEntityId

constexpr u64 AZ::EntityId::InvalidEntityId = 0x00000000FFFFFFFFull

staticconstexpr

Invalid entity ID with a machine ID of 0 and the maximum timestamp.

m_id

u64 AZ::EntityId::m_id

protected

Entity ID.

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

• Code/Framework/AzCore/AzCore/Component/EntityId.h