Struct EntityEditor 

pub struct EntityEditor<'w> { /* private fields */ }

Implementations

impl<'w> EntityEditor<'w>

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

pub fn add_components_by_index( &mut self, e: Entity, components: &[ComponentIndex], ) -> Result<(), QueryError>

根据组件id列表一次添加或删除多个相应组件(true 为增加， false 为删除)

pub fn remove_components_by_index( &mut self, e: Entity, components: &[ComponentIndex], ) -> Result<(), QueryError>

根据组件id列表一次删除多个相应组件

pub fn alter_components_by_index( &mut self, e: Entity, components: &[(ComponentIndex, bool)], ) -> Result<(), QueryError>

根据组件id列表一次添加或删除多个相应组件(true 为增加， false 为删除)

pub fn insert_entity_by_index( &mut self, components: &[ComponentIndex], ) -> Result<Entity, QueryError>

根据组件id列表一次插入多个相应组件

pub fn destroy(&self, e: Entity) -> Result<(), QueryError>

删除实体

pub fn alloc_entity(&self) -> Entity

pub fn get_component<T: 'static>(&self, e: Entity) -> Result<&T, QueryError>

获取组件只读引用

pub fn get_component_mut<T: 'static>( &mut self, e: Entity, ) -> Result<Mut<'_, T>, QueryError>

获取组件可写引用

pub fn get_component_unchecked<T: 'static>(&self, e: Entity) -> &T

pub fn get_component_unchecked_mut<T: 'static>( &mut self, e: Entity, ) -> Mut<'_, T>

pub fn get_component_by_index<T: 'static>( &self, e: Entity, index: ComponentIndex, ) -> Result<&T, QueryError>

根据组件id获取组件只读引用（性能相较get_component更好）

pub fn get_component_mut_by_index<T: 'static>( &mut self, e: Entity, index: ComponentIndex, ) -> Result<Mut<'_, T>, QueryError>

根据组件id获取组件可写引用（性能相较get_component_mut更好）

pub fn get_component_unchecked_by_index<T: 'static>( &self, e: Entity, index: ComponentIndex, ) -> &T

pub fn get_component_unchecked_mut_by_index<T: 'static>( &mut self, e: Entity, index: ComponentIndex, ) -> Mut<'_, T>

pub fn init_component<T: 'static>(&mut self) -> ComponentIndex

获取组件id

pub fn contains_entity(&self, e: Entity) -> bool

是否包含实体

pub fn add_components<B: Bundle + 'static>( &mut self, e: Entity, components: B, ) -> Result<(), QueryError>

添加多个组件 todo 改成add_bundle

pub fn insert_entity<B: Bundle + 'static>(&mut self, components: B) -> Entity

插入多个组件，返回对应的实体

pub fn make_insert<B: Bundle + 'static>(&mut self) -> InsertState<B>

创建一个插入器

pub fn make_query<Q: FetchComponents + 'static, F: FilterComponents + 'static = ()>( &mut self, ) -> QueryState<Q, F>

创建一个查询器

pub fn make_alter<Q: FetchComponents + 'static, F: FilterComponents + 'static, A: Bundle + 'static, D: Bundle + 'static>( &mut self, ) -> QueryAlterState<Q, F, A, D>

创建一个改变器

Trait Implementations

impl SystemParam for EntityEditor<'_>

type State = Ptr<World>

Used to store data which persists across invocations of a system.

type Item<'w> = EntityEditor<'w>

fn init_state(world: &mut World, meta: &mut SystemMeta) -> Self::State

The item type returned when constructing this system param. The value of this associated type should be Self, instantiated with new lifetimes.

fn get_param<'world>(state: &'world mut Self::State) -> Self::Item<'world>

Creates a parameter to be passed into a SystemParamFunction.

fn get_self<'world>(state: &'world mut Self::State) -> Self

fn align(state: &mut Self::State)

system align the world archetypes.

fn init(_state: &mut Self::State)