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custom_loop.rs
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custom_loop.rs
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//! This example demonstrates you can create a custom runner (to update an app manually). It reads
//! lines from stdin and prints them from within the ecs.
use bevy::prelude::*;
use std::io;
#[derive(Resource)]
struct Input(String);
fn my_runner(mut app: App) {
println!("Type stuff into the console");
for line in io::stdin().lines() {
{
let mut input = app.world.resource_mut::<Input>();
input.0 = line.unwrap();
}
app.update();
}
}
fn print_system(input: Res<Input>) {
println!("You typed: {}", input.0);
}
fn main() {
App::new()
.insert_resource(Input(String::new()))
.set_runner(my_runner)
.add_system(print_system)
.run();
}