Struct EventSystem 

pub struct EventSystem { /* private fields */ }

Workspace-wide event bus: a frame-scoped mailbox, not a persistent log. publish queues an event by its concrete type; drain removes and returns every event of that type published since the last drain. This is what lets subsystems communicate without depending on each other directly — e.g. a future physics-core contact could be published here and consumed by audio-core for an impact sound, without either crate knowing the other exists (see docs/dependency-rules.md rule 7: only engine-core is allowed to know about both).

Implementations

impl EventSystem

pub fn new() -> Self

pub fn publish<E: 'static>(&mut self, event: E)

Queues event, keyed by its concrete type E. Multiple event types don’t collide — each gets its own queue.

pub fn drain<E: 'static>(&mut self) -> Vec<E>

Removes and returns every queued event of type E, in publish order. A second call before any new publish::<E> returns empty — this is a drain, not a peek.

Trait Implementations

impl Debug for EventSystem

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

Formats the value using the given formatter.

impl Default for EventSystem

fn default() -> EventSystem

Returns the “default value” for a type.