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Warn when WindowDescriptor is inserted after adding WindowPlugin. #5885

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Warn when WindowDescriptor is inserted after adding WindowPlugin. #5885

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ddaec62
more like, footgone, amirite
tim-blackbird Sep 5, 2022
09504f8
A change in strategy.
tim-blackbird Sep 5, 2022
6476dcd
Remove brackets.
tim-blackbird Sep 5, 2022
9f4611a
split message
tim-blackbird Sep 5, 2022
bf2ea31
Update crates/bevy_window/src/lib.rs
tim-blackbird Sep 6, 2022
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18 changes: 15 additions & 3 deletions crates/bevy_window/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ mod window;
mod windows;

pub use crate::raw_window_handle::*;
use bevy_utils::tracing::warn;
pub use cursor::*;
pub use event::*;
pub use system::*;
Expand All @@ -25,7 +26,7 @@ use bevy_app::prelude::*;
use bevy_ecs::{
event::Events,
schedule::{ParallelSystemDescriptorCoercion, SystemLabel},
system::Resource,
system::{Res, Resource},
};

/// The configuration information for the [`WindowPlugin`].
Expand Down Expand Up @@ -99,8 +100,7 @@ impl Plugin for WindowPlugin {
if settings.add_primary_window {
let window_descriptor = app
.world
.get_resource::<WindowDescriptor>()
.cloned()
.remove_resource::<WindowDescriptor>()
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.unwrap_or_default();
let mut create_window_event = app.world.resource_mut::<Events<CreateWindow>>();
create_window_event.send(CreateWindow {
Expand All @@ -118,6 +118,18 @@ impl Plugin for WindowPlugin {
if settings.close_when_requested {
app.add_system(close_when_requested);
}

#[cfg(debug_assertions)]
app.add_system(|wd: Option<Res<WindowDescriptor>>| {
if let Some(wd) = wd {
if wd.is_added() {
warn!(
"The WindowDescriptor resource must be inserted before the WindowPlugin is added. \
Make sure to insert WindowDescriptor before adding the DefaultPlugins or the WindowPlugin.",
);
}
}
});
}
}

Expand Down