restore after broken git

src/states/main_menu/plugin.rs

@@ -0,0 +1,23 @@
+use bevy::prelude::*;
+use crate::states::main_menu::{MainMenuNewGameButton, MainMenuSettingsButton};
+use crate::ui::button_click::ButtonClickMessage;
+use crate::ui::click::handle_click_system;
+
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct MainMenuButtonSet;
+
+pub struct MainMenuUiPlugin;
+
+impl Plugin for MainMenuUiPlugin {
+    fn build(&self, app: &mut App) {
+        app.add_message::<ButtonClickMessage<MainMenuNewGameButton>>()
+            .add_message::<ButtonClickMessage<MainMenuSettingsButton>>()
+            .add_systems(
+                Update,
+                (
+                    handle_click_system::<MainMenuNewGameButton>,
+                    handle_click_system::<MainMenuSettingsButton>,
+                ).in_set(MainMenuButtonSet)
+            );
+    }
+}