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time_system is ambiguous_with event_update_system (#14544)

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# Objective

Resolve possible ambiguity detection panic between `time_system` and
`event_update_system`.

Fixes #14524

## Solution

Sets `.ambiguous_with(event_update_system)` on `time_system`. This is
slightly new territory for me, so please treat with scepticism.

## Testing

As described in the issue, added
```
        .configure_schedules(ScheduleBuildSettings {
            ambiguity_detection: LogLevel::Error,
            ..default()
        })
```
to the `time` example and ran it.
This commit is contained in:
Rich Churcher 2024-08-01 00:13:17 +12:00 committed by GitHub
parent 023e0e5bde
commit e579622a65
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2 changed files with 11 additions and 4 deletions
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13
crates/bevy_time/src/lib.rs
View file

@ -30,7 +30,9 @@ pub mod prelude {
}
use bevy_app::{prelude::*, RunFixedMainLoop};
use bevy_ecs::event::{signal_event_update_system, EventRegistry, ShouldUpdateEvents};
use bevy_ecs::event::{
event_update_system, signal_event_update_system, EventRegistry, ShouldUpdateEvents,
};
use bevy_ecs::prelude::*;
use bevy_utils::{tracing::warn, Duration, Instant};
pub use crossbeam_channel::TrySendError;
@ -62,8 +64,13 @@ impl Plugin for TimePlugin {
.register_type::<Timer>();
}
app.add_systems(First, time_system.in_set(TimeSystem))
.add_systems(RunFixedMainLoop, run_fixed_main_schedule);
app.add_systems(
First,
time_system
.in_set(TimeSystem)
.ambiguous_with(event_update_system),
)
.add_systems(RunFixedMainLoop, run_fixed_main_schedule);
// Ensure the events are not dropped until `FixedMain` systems can observe them
app.add_systems(FixedPostUpdate, signal_event_update_system);

2
tests/ecs/ambiguity_detection.rs
View file

@ -69,7 +69,7 @@ pub fn main() {
let total_ambiguities = ambiguities.total();
assert_eq!(
total_ambiguities, 82,
total_ambiguities, 81,
"Main app does not have an expected conflicting systems count, \
you might consider verifying if it's normal, or change the expected number.\n\
Details:\n{:#?}",