Struct hecs_hierarchy::TreeBuilder

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

A wrapper to help spawn trees more ergonomically

Example

struct TreeMarker;

let mut world = World::new();
let builder = TreeBuilder::<TreeMarker>::new(&mut world);
let tree_root = builder
    .spawn_tree(("root",))
    .attach_new(("child 1",))
    .attach({
        builder
            .spawn_tree(("child 2",))
            .attach_new(("child 2.1",))
            .attach_new(("child 2.2",))
            .entity()
    })
    .entity();

Implementations

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

pub fn new(world: &'a mut World) -> Self

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

Spawns an entity in the world wrapped in this TreeBuilder, without actually building a tree or attaching it to anything.

pub fn spawn_tree<'b, C: DynamicBundle>(
    &'b self,
    components: C
) -> TreeBuilderAt<'a, 'b, T>

Spawns a tree root in the world wrapped in this TreeBuilder, returning a TreeBuilderAt that allows spawning children under it.