39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
use bevy::{
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app::schedule_runner::{RunMode, ScheduleRunnerPlugin},
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prelude::*,
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};
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use std::time::Duration;
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// This example disables the default plugins by not registering them during setup.
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// You can also completely remove rendering / windowing Plugin code from bevy
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// by making your import look like this in your Cargo.toml
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//
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// [dependencies]
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// bevy = { version = "0.1.0", default-features = false, features = ["headless"] }
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fn main() {
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// this app runs once
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App::build()
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.add_plugin(ScheduleRunnerPlugin {
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run_mode: RunMode::Once,
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})
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.add_system(hello_world_system())
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.run();
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// this app loops forever at 60 fps
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App::build()
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.add_plugin(ScheduleRunnerPlugin {
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run_mode: RunMode::Loop {
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wait: Some(Duration::from_secs_f64(1.0 / 60.0)),
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},
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})
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.add_system(hello_world_system())
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.run();
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}
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pub fn hello_world_system() -> Box<dyn Schedulable> {
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SystemBuilder::new("hello_world").build(move |_, _, _, _| {
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println!("hello world");
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})
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}
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