Derive

Use the derive feature to support clap's derive pattern for REPL commands. #[derive(ReplCommand)] will automatically implement the ReplCommand trait and create an event with the command's arguments and options. Configure the response by adding an observer for the REPL command like normal.

Enable the derive feature to use clap's derive pattern with #[derive(ReplCommand)].

[dependencies]
bevy_repl = { version = "0.4", features = ["derive"] }

use bevy::prelude::*;
use bevy_repl::prelude::*;
use clap::Parser;

#[derive(ReplCommand, Parser, Default, Event)]
struct Ping;

fn on_ping(_t: Trigger<Ping>) {
    println!("pong");
}

fn main() {
    App::new()
        .add_plugins((
            MinimalPlugins,
            bevy::input::InputPlugin::default(),
            ReplPlugins,
        ))
        .add_repl_command::<Ping>()
        .add_observer(on_ping)
        .run();
}