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Removed frame rate updates from fixed step example (#1850)

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Fixes #1751.

Output before:

```
...
update: 0.016478100000000495
update: 0.01955749999999945
fixed_update: 2.0052284
  overstep_percentage: 0.00946374999999966
update: 0.013902800000000326
update: 0.02283240000000042
...
```

Output after:

```
...
fixed_update: 2.0053731
  overstep_percentage: 0.0031439500000001175
fixed_update: 1.9976363
  overstep_percentage: 0.0019621000000002997
fixed_update: 2.0069121999999995
  overstep_percentage: 0.005418200000000262
...
```
This commit is contained in:
Yoh Deadfall 2021-04-14 22:38:04 +00:00
parent deb9f23667
commit 8aa22ba477
1 changed files with 3 additions and 3 deletions
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6
examples/ecs/fixed_timestep.rs
View file

@ -12,14 +12,14 @@ fn main() {
App::build() App::build()
.add_plugins(DefaultPlugins) .add_plugins(DefaultPlugins)
// this system will run once every update (it should match your screen's refresh rate) // this system will run once every update (it should match your screen's refresh rate)
.add_system(update.system()) .add_system(frame_update.system())
// add a new stage that runs every two seconds // add a new stage that runs every two seconds
.add_stage_after( .add_stage_after(
CoreStage::Update, CoreStage::Update,
FixedUpdateStage, FixedUpdateStage,
SystemStage::parallel() SystemStage::parallel()
.with_run_criteria( .with_run_criteria(
FixedTimestep::step(2.0) FixedTimestep::step(0.5)
// labels are optional. they provide a way to access the current // labels are optional. they provide a way to access the current
// FixedTimestep state from within a system // FixedTimestep state from within a system
.with_label(LABEL), .with_label(LABEL),
@ -29,7 +29,7 @@ fn main() {
.run(); .run();
} }
fn update(mut last_time: Local<f64>, time: Res<Time>) { fn frame_update(mut last_time: Local<f64>, time: Res<Time>) {
println!("update: {}", time.seconds_since_startup() - *last_time); println!("update: {}", time.seconds_since_startup() - *last_time);
*last_time = time.seconds_since_startup(); *last_time = time.seconds_since_startup();
} }