Struct Layer 

pub struct Layer(pub i32);

渲染层级组件

控制实体的渲染顺序，数值越大越靠前渲染。

使用场景

• UI 层级: 控制 UI 元素的显示顺序
• 精灵排序: 2D 游戏中精灵的前后关系
• 透明度排序: 透明物体的渲染顺序
• 调试显示: 调试信息的显示层级

示例

use anvilkit_ecs::prelude::*;
 
let mut world = World::new();
 
// 创建不同层级的实体
world.spawn((Name::new("背景"), Layer(0)));
world.spawn((Name::new("游戏对象"), Layer(1)));
world.spawn((Name::new("UI"), Layer(2)));
world.spawn((Name::new("调试信息"), Layer(999)));

Tuple Fields

0: i32

Implementations

impl Layer

pub fn new(layer: i32) -> Layer

创建新的层级组件

参数

• layer: 层级数值

示例

use anvilkit_ecs::component::Layer;
 
let layer = Layer::new(5);
assert_eq!(layer.value(), 5);

pub fn value(&self) -> i32

获取层级数值

pub fn set(&mut self, layer: i32)

设置层级数值

pub fn increase(&mut self, delta: i32)

增加层级

示例

use anvilkit_ecs::component::Layer;
 
let mut layer = Layer::new(1);
layer.increase(2);
assert_eq!(layer.value(), 3);

pub fn decrease(&mut self, delta: i32)

减少层级

Trait Implementations

impl Clone for Layer

fn clone(&self) -> Layer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Component for Layer

where Layer: 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 Layer

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

Formats the value using the given formatter.

impl Default for Layer

fn default() -> Layer

Returns the “default value” for a type.

impl From<i32> for Layer

fn from(layer: i32) -> Layer

Converts to this type from the input type.

impl Hash for Layer

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Layer

fn cmp(&self, other: &Layer) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Layer

fn eq(&self, other: &Layer) -> 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 PartialOrd for Layer

fn partial_cmp(&self, other: &Layer) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Layer

impl Eq for Layer

impl StructuralPartialEq for Layer