Module bevy_ecs::event

Event handling types.

Structs

• EventId
  An EventId uniquely identifies an event stored in a specific World.
• EventIterator
  An iterator that yields any unread events from an EventReader or ManualEventReader.
• EventIteratorWithId
  An iterator that yields any unread events (and their IDs) from an EventReader or ManualEventReader.
• EventReader
  Reads events of type T in order and tracks which events have already been read.
• EventWriter
  Sends events of type T.
• Events
  An event collection that represents the events that occurred within the last two Events::update calls. Events can be written to using an EventWriter and are typically cheaply read using an EventReader.
• ManualEventReader
  Stores the state for an EventReader.
• SendBatchIds
  Iterator over sent EventIds from a batch.

Traits

• Event
  A type that can be stored in an Events<E> resource You can conveniently access events using the EventReader and EventWriter system parameter.

Functions

• event_update_condition
  A run condition that checks if the event’s event_update_system needs to run or not.
• event_update_system
  A system that calls Events::update.
• reset_event_update_signal_system
  Resets the EventUpdateSignal
• signal_event_update_system
  Signals the event_update_system to run after FixedUpdate systems.

Derive Macros

• Event