Struct EventChannel 

pub struct EventChannel<T> { /* private fields */ }

A typed event channel for game-specific events.

Games insert this as a global resource on World:

use elevator_core::world::World;
use elevator_core::events::EventChannel;

#[derive(Debug)]
enum MyGameEvent { Foo, Bar }

let mut world = World::new();
world.insert_resource(EventChannel::<MyGameEvent>::new());
// Later:
world.resource_mut::<EventChannel<MyGameEvent>>().unwrap().emit(MyGameEvent::Foo);

Implementations

impl<T> EventChannel<T>

pub const fn new() -> Self

Create an empty event channel.

pub fn emit(&mut self, event: T)

Emit an event into the channel.

pub fn drain(&mut self) -> Vec<T>

Drain and return all pending events.

pub fn peek(&self) -> &[T]

Peek at pending events without clearing.

pub const fn is_empty(&self) -> bool

Check if the channel has no pending events.

pub const fn len(&self) -> usize

Number of pending events.

Trait Implementations

impl<T: Debug> Debug for EventChannel<T>

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

Formats the value using the given formatter.

impl<T> Default for EventChannel<T>

fn default() -> Self

Returns the “default value” for a type.