Fix viewport bug

src/editor/ui/game_view.rs

@@ -72,6 +72,23 @@ impl EditorTab for GameViewTab {
     }
 }
 
+pub fn reset_camera_viewport(
+    primary_window: Query<&mut Window, With<PrimaryWindow>>,
+    mut cameras: Query<&mut Camera, With<EditorCameraMarker>>,
+) {
+    let mut cam = cameras.single_mut();
+
+    let Ok(window) = primary_window.get_single() else {
+        return;
+    };
+
+    cam.viewport = Some(bevy::render::camera::Viewport {
+        physical_position: UVec2::new(0, 0),
+        physical_size: UVec2::new(window.width() as u32, window.height() as u32),
+        depth: 0.0..1.0,
+    });
+}
+
 pub fn set_camera_viewport(
     ui_state: Res<GameViewTab>,
     primary_window: Query<&mut Window, With<PrimaryWindow>>,

src/editor/ui/mod.rs

@@ -30,7 +30,7 @@ pub mod debug_panels;
 use bevy::{prelude::*, utils::HashMap, window::PrimaryWindow};
 use bevy_egui::{egui, EguiContext};
 
-use crate::EditorSet;
+use crate::{EditorSet, EditorState};
 
 use self::tools::gizmo::GizmoTool;
 
@@ -62,7 +62,12 @@ impl Plugin for EditorUiPlugin {
 
         app.add_plugins(bot_menu::BotMenuPlugin);
 
-        app.configure_set(Update, UiSystemSet.in_set(EditorSet::Editor));
+        app.configure_set(
+            Update,
+            UiSystemSet
+                .in_set(EditorSet::Editor)
+                .run_if(in_state(EditorState::Editor)),
+        );
 
         app.init_resource::<EditorUi>();
         app.init_resource::<ScheduleEditorTabStorage>();
@@ -76,6 +81,10 @@ impl Plugin for EditorUiPlugin {
             )
                 .in_set(UiSystemSet),
         );
+        app.add_systems(
+            Update,
+            reset_camera_viewport.run_if(in_state(EditorState::Game)),
+        );
         app.editor_tab_by_trait(EditorTabName::GameView, GameViewTab::default());
 
         app.editor_tab_by_trait(