bevy-game/src/main.rs

use bevy::prelude::*;

pub struct GamarjobaPlugin;

impl Plugin for GamarjobaPlugin {
    fn build(&self, app: &mut App) {
        app.add_startup_system(add_people)
            .insert_resource(GreetTimer(Timer::from_seconds(2.0, TimerMode::Repeating)))
            .add_system(greetings);
    }
    
}

#[derive(Component)]
struct Person;


#[derive(Component)]
struct Name(String);

fn add_people(mut commands: Commands) {

    commands.spawn((Person, Name("Skero Tlamenai".into())));
    commands.spawn((Person, Name("Wagoyesa Luutunen".into())));
    commands.spawn((Person, Name("Mak'lazi Heyorem".into())));
}

#[derive(Resource)]
struct GreetTimer(Timer);

fn greetings(query: Query<&Name, With<Person>>, time: Res<Time>, mut timer: ResMut<GreetTimer>) {
    if timer.0.tick(time.delta()).just_finished() {
        for name in &query {
            println!("Gamarjoba, {}", name.0)
        }
    }
}


fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_plugin(GamarjobaPlugin)
        .run();
}