bevy/examples/diagnostics/custom_diagnostic.rs
Carter Anderson 11b41206eb Add upstream bevy_ecs and prepare for custom-shaders merge (#2815)
This updates the `pipelined-rendering` branch to use the latest `bevy_ecs` from `main`. This accomplishes a couple of goals:

1. prepares for upcoming `custom-shaders` branch changes, which were what drove many of the recent bevy_ecs changes on `main`
2. prepares for the soon-to-happen merge of `pipelined-rendering` into `main`. By including bevy_ecs changes now, we make that merge simpler / easier to review. 

I split this up into 3 commits:

1. **add upstream bevy_ecs**: please don't bother reviewing this content. it has already received thorough review on `main` and is a literal copy/paste of the relevant folders (the old folders were deleted so the directories are literally exactly the same as `main`).
2. **support manual buffer application in stages**: this is used to enable the Extract step. we've already reviewed this once on the `pipelined-rendering` branch, but its worth looking at one more time in the new context of (1).
3. **support manual archetype updates in QueryState**: same situation as (2).
2021-09-14 06:14:19 +00:00

36 lines
1.2 KiB
Rust

use bevy::{
diagnostic::{Diagnostic, DiagnosticId, Diagnostics, LogDiagnosticsPlugin},
prelude::*,
};
/// This example illustrates how to create a custom diagnostic
fn main() {
App::new()
.add_plugins(DefaultPlugins)
// The "print diagnostics" plugin is optional. It just visualizes our diagnostics in the
// console
.add_plugin(LogDiagnosticsPlugin::default())
.add_startup_system(setup_diagnostic_system)
.add_system(my_system)
.run();
}
// All diagnostics should have a unique DiagnosticId. for each new diagnostic, generate a new random
// number
pub const SYSTEM_ITERATION_COUNT: DiagnosticId =
DiagnosticId::from_u128(337040787172757619024841343456040760896);
fn setup_diagnostic_system(mut diagnostics: ResMut<Diagnostics>) {
// Diagnostics must be initialized before measurements can be added.
// In general it's a good idea to set them up in a "startup system".
diagnostics.add(Diagnostic::new(
SYSTEM_ITERATION_COUNT,
"system_iteration_count",
10,
));
}
fn my_system(mut diagnostics: ResMut<Diagnostics>) {
// Add a measurement of 10.0 for our diagnostic each time this system runs
diagnostics.add_measurement(SYSTEM_ITERATION_COUNT, 10.0);
}