pub struct WithOneRelated(pub Entity);
Expand description
A wrapper over an Entity
indicating that an entity should be added.
This is intended to be used for hierarchical spawning via traits like SpawnableList
and SpawnRelated
.
Unlike WithRelated
this only adds one entity.
Also see the children
and related
macros that abstract over the Spawn
API.
let mut world = World::new();
let child1 = world.spawn(Name::new("Child1")).id();
world.spawn((
Name::new("Root"),
Children::spawn((
// This adds the already existing entity as a child of Root.
WithOneRelated(child1),
)),
));
Tuple Fields§
§0: Entity
Trait Implementations§
Source§impl<R> SpawnableList<R> for WithOneRelatedwhere
R: Relationship,
impl<R> SpawnableList<R> for WithOneRelatedwhere
R: Relationship,
Source§fn size_hint(&self) -> usize
fn size_hint(&self) -> usize
Returns a size hint, which is used to reserve space for this list in a
RelationshipTarget
. This should be
less than or equal to the actual size of the list. When in doubt, just use 0.Auto Trait Implementations§
impl Freeze for WithOneRelated
impl RefUnwindSafe for WithOneRelated
impl Send for WithOneRelated
impl Sync for WithOneRelated
impl Unpin for WithOneRelated
impl UnwindSafe for WithOneRelated
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