The previous implementation of `Events::extend` iterated through each event and manually `sent` it via `Events:;send`.
However, this could be a minor performance hit since calling `Vec::push` in a loop is not optimal.
This refactors the code to use `Vec::extend`.
Fixes#1809. It makes it also possible to use `derive` for `SystemParam` inside ECS and avoid manual implementation. An alternative solution to macro changes is to use `use crate as bevy_ecs;` in `event.rs`.
2021-04-13 20:36:37 +00:00
Renamed from crates/bevy_app/src/event.rs (Browse further)
