Enum RelationshipAccessor 

pub enum RelationshipAccessor {
    Relationship {
        entity_field_offset: usize,
        linked_spawn: bool,
        allow_self_referential: bool,
        relationship_target: ComponentId,
    },
    RelationshipTarget {
        iter: for<'a> unsafe fn(Ptr<'a>) -> Box<dyn Iterator<Item = Entity> + 'a>,
        linked_spawn: bool,
        allow_self_referential: bool,
        relationship: ComponentId,
    },
}

This enum describes a way to access the entities of Relationship and RelationshipTarget components in a type-erased context.

Variants

Relationship

This component is a Relationship.

Fields

entity_field_offset: usize

Offset of the field containing Entity from the base of the component.

Dynamic equivalent of Relationship::get.

linked_spawn: bool

Value of RelationshipTarget::LINKED_SPAWN for the Relationship::RelationshipTarget of this Relationship.

allow_self_referential: bool

Value of Relationship::ALLOW_SELF_REFERENTIAL of this Relationship.

relationship_target: ComponentId

ComponentId of the RelationshipTarget counterpart.

RelationshipTarget

This component is a RelationshipTarget.

Fields

iter: for<'a> unsafe fn(Ptr<'a>) -> Box<dyn Iterator<Item = Entity> + 'a>

Function that returns an iterator over all Entitys of this RelationshipTarget’s collection.

Dynamic equivalent of RelationshipTarget::iter.

Safety

Passed pointer must point to the value of the same component as the one that this accessor was registered to.

linked_spawn: bool

Value of RelationshipTarget::LINKED_SPAWN of this RelationshipTarget.

allow_self_referential: bool

Value of Relationship::ALLOW_SELF_REFERENTIAL for the Relationship of this RelationshipTarget.

relationship: ComponentId

ComponentId of the Relationship counterpart.

Implementations

impl RelationshipAccessor

pub fn counterpart_id(&self) -> ComponentId

Returns ComponentId of RelationshipTarget for this Relationship and vice-versa.

pub fn linked_spawn(&self) -> bool

Returns the value of RelationshipTarget::LINKED_SPAWN.

pub fn allow_self_referential(&self) -> bool

Returns the value of Relationship::ALLOW_SELF_REFERENTIAL.

Trait Implementations

impl Clone for RelationshipAccessor

fn clone(&self) -> RelationshipAccessor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RelationshipAccessor

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Copy for RelationshipAccessor