Struct Spawn 

pub struct Spawn<B: Bundle>(pub B);

A wrapper over a Bundle indicating that an entity should be spawned with that Bundle. This is intended to be used for hierarchical spawning via traits like SpawnableList and SpawnRelated.

Also see the children and related macros that abstract over the Spawn API.

let mut world = World::new();
world.spawn((
    Name::new("Root"),
    Children::spawn((
        Spawn(Name::new("Child1")),
        Spawn((
            Name::new("Child2"),
            Children::spawn(Spawn(Name::new("Grandchild"))),
        ))
    )),
));

Tuple Fields

0: B

Trait Implementations

impl<R: Relationship, B: Bundle> SpawnableList<R> for Spawn<B>

fn spawn(this: MovingPtr<'_, Self>, world: &mut World, entity: Entity)

Spawn this list of changes in a given World and relative to a given Entity. This is generally used for spawning “related” entities, such as children.

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.