bevy/examples/app/headless.rs
François b724a0f586 Down with the system! (#2496)
# Objective

- Remove all the `.system()` possible.
- Check for remaining missing cases.

## Solution

- Remove all `.system()`, fix compile errors
- 32 calls to `.system()` remains, mostly internals, the few others should be removed after #2446
2021-07-27 23:42:36 +00:00

43 lines
1.1 KiB
Rust

use bevy::{app::ScheduleRunnerSettings, prelude::*, utils::Duration};
// This example only enables a minimal set of plugins required for bevy to run.
// You can also completely remove rendering / windowing Plugin code from bevy
// by making your import look like this in your Cargo.toml
//
// [dependencies]
// bevy = { version = "*", default-features = false }
// # replace "*" with the most recent version of bevy
fn main() {
// this app runs once
App::new()
.insert_resource(ScheduleRunnerSettings::run_once())
.add_plugins(MinimalPlugins)
.add_system(hello_world_system)
.run();
// this app loops forever at 60 fps
App::new()
.insert_resource(ScheduleRunnerSettings::run_loop(Duration::from_secs_f64(
1.0 / 60.0,
)))
.add_plugins(MinimalPlugins)
.add_system(counter)
.run();
}
fn hello_world_system() {
println!("hello world");
}
fn counter(mut state: Local<CounterState>) {
if state.count % 60 == 0 {
println!("{}", state.count);
}
state.count += 1;
}
#[derive(Default)]
struct CounterState {
count: u32,
}