pub struct ObserverDescriptor { /* private fields */ }
Expand description
A description of what an Observer
observes.
Implementations§
Source§impl ObserverDescriptor
impl ObserverDescriptor
Sourcepub unsafe fn with_events(self, events: Vec<ComponentId>) -> Self
pub unsafe fn with_events(self, events: Vec<ComponentId>) -> Self
Add the given events
to the descriptor.
§Safety
The type of each ComponentId
in events
must match the actual value
of the event passed into the observer.
Sourcepub fn with_components(self, components: Vec<ComponentId>) -> Self
pub fn with_components(self, components: Vec<ComponentId>) -> Self
Add the given components
to the descriptor.
Sourcepub fn with_entities(self, entities: Vec<Entity>) -> Self
pub fn with_entities(self, entities: Vec<Entity>) -> Self
Add the given entities
to the descriptor.
Trait Implementations§
Source§impl Clone for ObserverDescriptor
impl Clone for ObserverDescriptor
Source§fn clone(&self) -> ObserverDescriptor
fn clone(&self) -> ObserverDescriptor
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreSource§impl Default for ObserverDescriptor
impl Default for ObserverDescriptor
Source§fn default() -> ObserverDescriptor
fn default() -> ObserverDescriptor
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for ObserverDescriptor
impl RefUnwindSafe for ObserverDescriptor
impl Send for ObserverDescriptor
impl Sync for ObserverDescriptor
impl Unpin for ObserverDescriptor
impl UnwindSafe for ObserverDescriptor
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> FromWorld for Twhere
T: Default,
impl<T> FromWorld for Twhere
T: Default,
Source§fn from_world(_world: &mut World) -> T
fn from_world(_world: &mut World) -> T
Creates
Self
using data from the given World
.