Struct hecs_hierarchy::TreeBuilderAt

pub struct TreeBuilderAt<'a, 'b, T> { /* fields omitted */ }

A wrapper to help spawn children for a given entity more ergonomically

Created by TreeBuilder::spawn_tree

Implementations

impl<'a, T: 'static + Send + Sync> TreeBuilderAt<'a, '_, T>

pub fn world(&self) -> Ref<'_, &'a mut World>

Immutably borrows the wrapped &mut World from the contained RefCell.

Panics

Panics if the value is currently mutably borrowed.

pub fn world_mut(&self) -> RefMut<'_, &'a mut World>

Mutably borrows the wrapped &mut World from the contained RefCell.

Panics

Panics if the value is currently borrowed.

pub fn spawn<C: DynamicBundle>(&self, components: C) -> Entity

Spawns an entity, without actually attaching it to anything.

pub fn spawn_child<C: DynamicBundle>(&self, components: C) -> Entity

Spawns a child under the currenty entity, returning the Entity. If the Entity isn’t required, you can use attach_new instead, which supports method chaining.

pub fn attach(&self, entity: Entity) -> &Self

Attaches a child to the current entity.

pub fn attach_new<C: DynamicBundle>(&self, components: C) -> &Self

Spawns a new child entity under the current entity.

pub fn entity(&self) -> Entity