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https://github.com/bevyengine/bevy
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# Objective - Better consistency with `add_systems`. - Deprecating `add_plugin` in favor of a more powerful `add_plugins`. - Allow passing `Plugin` to `add_plugins`. - Allow passing tuples to `add_plugins`. ## Solution - `App::add_plugins` now takes an `impl Plugins` parameter. - `App::add_plugin` is deprecated. - `Plugins` is a new sealed trait that is only implemented for `Plugin`, `PluginGroup` and tuples over `Plugins`. - All examples, benchmarks and tests are changed to use `add_plugins`, using tuples where appropriate. --- ## Changelog ### Changed - `App::add_plugins` now accepts all types that implement `Plugins`, which is implemented for: - Types that implement `Plugin`. - Types that implement `PluginGroup`. - Tuples (up to 16 elements) over types that implement `Plugins`. - Deprecated `App::add_plugin` in favor of `App::add_plugins`. ## Migration Guide - Replace `app.add_plugin(plugin)` calls with `app.add_plugins(plugin)`. --------- Co-authored-by: Carter Anderson <mcanders1@gmail.com>
33 lines
1.2 KiB
Rust
33 lines
1.2 KiB
Rust
//! This example illustrates how to create a custom diagnostic.
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use bevy::{
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diagnostic::{Diagnostic, DiagnosticId, Diagnostics, LogDiagnosticsPlugin, RegisterDiagnostic},
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prelude::*,
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};
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fn main() {
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App::new()
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.add_plugins((
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DefaultPlugins,
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// The "print diagnostics" plugin is optional.
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// It just visualizes our diagnostics in the console.
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LogDiagnosticsPlugin::default(),
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))
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// Diagnostics must be initialized before measurements can be added.
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.register_diagnostic(
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Diagnostic::new(SYSTEM_ITERATION_COUNT, "system_iteration_count", 10)
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.with_suffix(" iterations"),
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)
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.add_systems(Update, my_system)
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.run();
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}
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// All diagnostics should have a unique DiagnosticId.
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// For each new diagnostic, generate a new random number.
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pub const SYSTEM_ITERATION_COUNT: DiagnosticId =
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DiagnosticId::from_u128(337040787172757619024841343456040760896);
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fn my_system(mut diagnostics: Diagnostics) {
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// Add a measurement of 10.0 for our diagnostic each time this system runs.
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diagnostics.add_measurement(SYSTEM_ITERATION_COUNT, || 10.0);
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}
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