observable_message

The MessageObservable lets you observe global messages written by a MessageWriter!

• Messages written in or before the observables schedule will be observed in the same frame. If the message was written in a later schedule, it will be observed in the next frame, which could lead to 1 frame flickers if something also reacts to the same message in the same frame it was written!

See Also

• EventObservable - Observe events sent to an entity.
• KeyboardObservable - Observe global key input.
• ProxyObservable - Subscribe to another observable entity.
• ResourceObservable - Observe derived values of a resource on change.

Example

cargo run -p rx_bevy --example message_observable_example