5622d56be1
# Objective - Build on #6336 for more plugin configurations ## Solution - `LogSettings`, `ImageSettings` and `DefaultTaskPoolOptions` are now plugins settings rather than resources --- ## Changelog - `LogSettings` plugin settings have been move to `LogPlugin`, `ImageSettings` to `ImagePlugin` and `DefaultTaskPoolOptions` to `CorePlugin` ## Migration Guide The `LogSettings` settings have been moved from a resource to `LogPlugin` configuration: ```rust // Old (Bevy 0.8) app .insert_resource(LogSettings { level: Level::DEBUG, filter: "wgpu=error,bevy_render=info,bevy_ecs=trace".to_string(), }) .add_plugins(DefaultPlugins) // New (Bevy 0.9) app.add_plugins(DefaultPlugins.set(LogPlugin { level: Level::DEBUG, filter: "wgpu=error,bevy_render=info,bevy_ecs=trace".to_string(), })) ``` The `ImageSettings` settings have been moved from a resource to `ImagePlugin` configuration: ```rust // Old (Bevy 0.8) app .insert_resource(ImageSettings::default_nearest()) .add_plugins(DefaultPlugins) // New (Bevy 0.9) app.add_plugins(DefaultPlugins.set(ImagePlugin::default_nearest())) ``` The `DefaultTaskPoolOptions` settings have been moved from a resource to `CorePlugin::task_pool_options`: ```rust // Old (Bevy 0.8) app .insert_resource(DefaultTaskPoolOptions::with_num_threads(4)) .add_plugins(DefaultPlugins) // New (Bevy 0.9) app.add_plugins(DefaultPlugins.set(CorePlugin { task_pool_options: TaskPoolOptions::with_num_threads(4), })) ```
48 lines
1.6 KiB
Rust
48 lines
1.6 KiB
Rust
//! Shows how anonymous functions / closures can be used as systems.
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use bevy::{log::LogPlugin, prelude::*};
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fn main() {
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// create a simple closure.
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let simple_closure = || {
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// this is a closure that does nothing.
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info!("Hello from a simple closure!");
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};
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// create a closure, with an 'input' value.
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let complex_closure = |mut value: String| {
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move || {
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info!("Hello from a complex closure! {:?}", value);
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// we can modify the value inside the closure. this will be saved between calls.
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value = format!("{} - updated", value);
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// you could also use an outside variable like presented in the inlined closures
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// info!("outside_variable! {:?}", outside_variable);
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}
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};
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let outside_variable = "bar".to_string();
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App::new()
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.add_plugin(LogPlugin::default())
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// we can use a closure as a system
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.add_system(simple_closure)
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// or we can use a more complex closure, and pass an argument to initialize a Local variable.
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.add_system(complex_closure("foo".into()))
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// we can also inline a closure
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.add_system(|| {
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info!("Hello from an inlined closure!");
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})
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// or use variables outside a closure
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.add_system(move || {
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info!(
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"Hello from an inlined closure that captured the 'outside_variable'! {:?}",
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outside_variable
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);
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// you can use outside_variable, or any other variables inside this closure.
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// their states will be saved.
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})
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.run();
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}
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