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camera: update cameras when windows are created

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This commit is contained in:
Carter Anderson 2020-06-22 13:21:39 -07:00
parent f72c4beadf
commit 06b2b06e9d
2 changed files with 18 additions and 1 deletions
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18
crates/bevy_render/src/camera/camera.rs
View file

@ -1,7 +1,7 @@
use crate::CameraProjection;
use bevy_app::{EventReader, Events};
use bevy_property::Properties;
use bevy_window::WindowResized;
use bevy_window::{WindowCreated, WindowResized, Windows};
use glam::Mat4;
use legion::{prelude::*, storage::Component};
@ -15,11 +15,27 @@ pub fn camera_system<T: CameraProjection + Component>(
_resources: &mut Resources,
) -> Box<dyn Schedulable> {
let mut window_resized_event_reader = EventReader::<WindowResized>::default();
let mut window_created_event_reader = EventReader::<WindowCreated>::default();
(move |world: &mut SubWorld,
window_resized_events: Res<Events<WindowResized>>,
window_created_events: Res<Events<WindowCreated>>,
windows: Res<Windows>,
query: &mut Query<(Write<Camera>, Write<T>)>| {
let primary_window_resized_event = window_resized_event_reader
.find_latest(&window_resized_events, |event| event.is_primary);
for event in window_created_event_reader.iter(&window_created_events) {
if !event.is_primary {
continue;
}
if let Some(window) = windows.get(event.id) {
for (mut camera, mut camera_projection) in query.iter_mut(world) {
camera_projection.update(window.width as usize, window.height as usize);
camera.view_matrix = camera_projection.get_view_matrix();
}
}
}
if let Some(primary_window_resized_event) = primary_window_resized_event {
for (mut camera, mut camera_projection) in query.iter_mut(world) {
camera_projection.update(

1
crates/bevy_window/src/window.rs
View file

@ -14,6 +14,7 @@ impl WindowId {
}
}
#[derive(Debug)]
pub struct Window {
pub id: WindowId,
pub width: u32,