Commands Send Event

An extension trait for Commands that allows you to send Bevy Events generically.

Supports Bevy 0.6

Limitations

• Events won't be dispatched immediately, but at the next Stage boundary when the queued commands are applied to the World.

• Bevy events are very lightweight and efficient. send_event is much more expensive than the regular EventWriter API.

Usage

Add to your Cargo.toml [dependencies] section commands_send_event = "0.2"

then the send_event method is available on Commands:

```rust use commandssendevent::CommandsSendEvent;

[derive(Component)]

struct MyEventA(String);

[derive(Component)]

struct MyEventB(i32);

fn sender( mut commands: Commands ) { commands.sendevent(MyEventA("Hello, World")); commands.sendevent(MyEventB(42)); } ``` The /examples folder has a complete working example.

0.2 update

Now there is also AnyEventWriter:

```rust use commandssendevent::AnyEventWriter;

[derive(Component)]

struct MyEventA(String);

[derive(Component)]

struct MyEventB(i32);

fn sender( mut eventwriter: AnyEventWriter, ) { eventwriter.send(MyEventA("Hello, World")); event_writer.send(MyEventB(42)); } ```

AnyEventWriter is a facade over Commands that implememnts SystemParam. It's more ergonomic, but has the same drawbacks with a similar or even worse performance profile.