feat: add keybinds for inventory and settings (#66)

src/features/input/mod.rs

@@ -1,9 +1,11 @@
 use crate::features::{
+    hud::ui::settings::open_settings,
     input::utils::mouse_to_grid,
+    inventory::{components::ItemStack, ui::open_inventory},
     phase::messages::{NextPhaseMessage, PhaseTimerPauseMessage},
     pom::messages::InvalidMoveMessage,
     shop::ui::open_shop,
-    ui::messages::ClosePopupMessage,
+    ui::{messages::ClosePopupMessage, ui::popups::PopupRoot},
 };
 use crate::prelude::*;
 use bevy::input::mouse::MouseButton;
@@ -40,6 +42,7 @@ impl Plugin for InputPlugin {
         app.add_systems(Update, next_phase.run_if(in_state(AppState::GameScreen)));
 
         app.add_systems(Update, shop_keybind.run_if(in_state(AppState::GameScreen)));
+        app.add_systems(Update, inventory_keybind.run_if(in_state(AppState::GameScreen)));
 
         app.add_message::<ClosePopupMessage>();
         app.add_systems(Update, popup_keybind);
@@ -261,12 +264,31 @@ fn shop_keybind(
     }
 }
 
-/// Closes popups on Escape press.
+/// Opens the inventory on 'I' press.
+fn inventory_keybind(
+    keys: Res<ButtonInput<KeyCode>>,
+    mut commands: Commands,
+    item_stacks: Query<&ItemStack>,
+    game_config: Res<GameConfig>,
+    asset_server: Res<AssetServer>,
+) {
+    if keys.just_pressed(KeyCode::KeyI) {
+        open_inventory(&mut commands, item_stacks, &game_config, &asset_server);
+    }
+}
+
+/// Closes popups on Escape press or opens settings if no popup is open.
 fn popup_keybind(
     mut close_popup_messages: MessageWriter<ClosePopupMessage>,
     keys: Res<ButtonInput<KeyCode>>,
+    popup_query: Query<Entity, With<PopupRoot>>,
+    mut commands: Commands,
 ) {
     if keys.just_pressed(KeyCode::Escape) {
-        close_popup_messages.write(ClosePopupMessage);
+        if !popup_query.is_empty() {
+            close_popup_messages.write(ClosePopupMessage);
+        } else {
+            open_settings(&mut commands);
+        }
     }
 }