Struct Children 

pub struct Children { /* private fields */ }

子实体列表组件

存储实体的所有子实体，用于变换传播和层次管理。

示例

use anvilkit_ecs::prelude::*;
 
let mut world = World::new();
 
let child1 = world.spawn_empty().id();
let child2 = world.spawn_empty().id();
 
let parent = world.spawn((
    Transform::default(),
    GlobalTransform::default(),
    Children::new(vec![child1, child2]),
)).id();

Implementations

impl Children

pub fn new(children: Vec<Entity>) -> Children

创建新的子实体列表

pub fn empty() -> Children

创建空的子实体列表

pub fn iter(&self) -> impl Iterator<Item = &Entity>

获取子实体列表

pub fn len(&self) -> usize

获取子实体数量

pub fn is_empty(&self) -> bool

检查是否为空

pub fn push(&mut self, entity: Entity)

添加子实体

pub fn remove(&mut self, entity: Entity)

移除子实体

pub fn contains(&self, entity: Entity) -> bool

检查是否包含指定子实体

pub fn clear(&mut self)

清空所有子实体

pub fn first(&self) -> Option<Entity>

获取第一个子实体

pub fn last(&self) -> Option<Entity>

获取最后一个子实体

Trait Implementations

impl Clone for Children

fn clone(&self) -> Children

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Component for Children

where Children: Send + Sync + 'static,

const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::Table

A constant indicating the storage type used for this component.

fn register_component_hooks(_hooks: &mut ComponentHooks)

Called when registering this component, allowing mutable access to its ComponentHooks.

impl Debug for Children

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

Formats the value using the given formatter.

impl Default for Children

fn default() -> Children

Returns the “default value” for a type.

impl From<Vec<Entity>> for Children

fn from(children: Vec<Entity>) -> Children

Converts to this type from the input type.

impl PartialEq for Children

fn eq(&self, other: &Children) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Children

impl StructuralPartialEq for Children