Pause menu functionality (#89)

* make menu use actual soundsettings values
* allow changing volume in pause menu
* persist saving settings

crates/hedz_reloaded/src/client/audio/mod.rs

@@ -2,8 +2,9 @@ mod music;
 mod sounds;
 
 use bevy::prelude::*;
+use serde::{Deserialize, Serialize};
 
-#[derive(Resource, Reflect, Clone, Copy, Debug)]
+#[derive(Resource, Reflect, Clone, Copy, Debug, Deserialize, Serialize)]
 #[reflect(Resource)]
 pub struct SoundSettings {
     pub sound_volume: f32,

crates/hedz_reloaded/src/client/mod.rs

@@ -33,6 +33,7 @@ pub mod debug;
 pub mod enemy;
 pub mod heal_effect;
 pub mod player;
+mod settings;
 pub mod setup;
 pub mod steam;
 pub mod ui;
@@ -49,6 +50,7 @@ pub fn plugin(app: &mut App) {
         audio::plugin,
         steam::plugin,
         ui::plugin,
+        settings::plugin,
     ));
 
     app.add_systems(

crates/hedz_reloaded/src/client/settings.rs

@@ -0,0 +1,42 @@
+use bevy::prelude::*;
+use bevy_pkv::prelude::*;
+
+use crate::client::audio::SoundSettings;
+
+#[derive(Resource)]
+struct SaveTimer(Timer);
+
+pub fn plugin(app: &mut App) {
+    app.insert_resource(PkvStore::new("Rustunit", "HEDZ"));
+    app.insert_resource(SaveTimer(Timer::from_seconds(1.0, TimerMode::Once)));
+
+    app.add_systems(Update, persist_settings);
+    app.add_systems(Startup, load_settings);
+}
+
+fn persist_settings(
+    settings: Res<SoundSettings>,
+    mut pkv: ResMut<PkvStore>,
+    mut timer: ResMut<SaveTimer>,
+    time: Res<Time>,
+) -> Result {
+    if settings.is_changed() {
+        timer.0.reset();
+    }
+
+    timer.0.tick(time.delta());
+
+    if timer.0.just_finished() {
+        pkv.set("audio", &*settings)?;
+    }
+
+    Ok(())
+}
+
+fn load_settings(mut settings: ResMut<SoundSettings>, pkv: Res<PkvStore>) -> Result {
+    if let Ok(loaded) = pkv.get::<SoundSettings>("audio") {
+        *settings = loaded;
+    }
+
+    Ok(())
+}

crates/hedz_reloaded/src/client/ui/pause.rs

@@ -1,5 +1,6 @@
 use crate::{
-    GameState, HEDZ_GREEN, HEDZ_PURPLE, client::control::CharacterInputEnabled,
+    GameState, HEDZ_GREEN, HEDZ_PURPLE,
+    client::{audio::SoundSettings, control::CharacterInputEnabled},
     loading_assets::UIAssets,
 };
 use bevy::{color::palettes::css::BLACK, prelude::*};
@@ -18,16 +19,29 @@ enum ProgressBar {
     Sound,
 }
 
+#[derive(Component)]
+struct VolumeValue(ProgressBar);
+
 #[derive(Resource)]
 struct PauseMenuSelection(ProgressBar);
 
+#[derive(Resource)]
+struct VolumeChangeCooldown(Timer);
+
 pub fn plugin(app: &mut App) {
     app.init_state::<PauseMenuState>();
 
     app.add_systems(Update, open_pause_menu.run_if(in_state(GameState::Playing)));
     app.add_systems(
         Update,
-        (selection_input, selection_changed).run_if(in_state(PauseMenuState::Open)),
+        (
+            selection_input,
+            selection_changed,
+            update_volume_display,
+            change_volume_keyboard,
+            change_volume_gamepad,
+        )
+            .run_if(in_state(PauseMenuState::Open)),
     );
     app.add_systems(OnEnter(PauseMenuState::Open), setup);
 }
@@ -58,7 +72,10 @@ fn open_pause_menu(
     }
 }
 
-fn setup(mut commands: Commands, assets: Res<UIAssets>) {
+fn setup(mut commands: Commands, assets: Res<UIAssets>, settings: Res<SoundSettings>) {
+    let sound_volume = (settings.sound_volume * 100.) as u8;
+    let music_volume = (settings.music_volume * 100.) as u8;
+
     commands.spawn((
         Name::new("pause-menu"),
         Node {
@@ -73,12 +90,16 @@ fn setup(mut commands: Commands, assets: Res<UIAssets>) {
         BackgroundColor(Color::linear_rgba(0., 0., 0., 0.6)),
         DespawnOnExit(PauseMenuState::Open),
         children![
-            spawn_progress(ProgressBar::Music, 100, assets.font.clone()),
-            spawn_progress(ProgressBar::Sound, 80, assets.font.clone())
+            spawn_progress(ProgressBar::Music, music_volume, assets.font.clone()),
+            spawn_progress(ProgressBar::Sound, sound_volume, assets.font.clone())
         ],
     ));
 
     commands.insert_resource(PauseMenuSelection(ProgressBar::Music));
+    commands.insert_resource(VolumeChangeCooldown(Timer::from_seconds(
+        0.09,
+        TimerMode::Repeating,
+    )));
 }
 
 fn spawn_progress(bar: ProgressBar, value: u8, font: Handle<Font>) -> impl Bundle {
@@ -144,6 +165,7 @@ fn spawn_progress(bar: ProgressBar, value: u8, font: Handle<Font>) -> impl Bundl
                 },
                 TextColor(HEDZ_GREEN.into()),
                 TextLayout::new_with_justify(Justify::Left).with_no_wrap(),
+                VolumeValue(bar),
             ),
             (
                 Node {
@@ -186,3 +208,92 @@ fn selection_changed(
         }
     }
 }
+
+fn update_volume_display(
+    settings: Res<SoundSettings>,
+    mut query: Query<(&mut Text, &VolumeValue)>,
+) {
+    if settings.is_changed() {
+        for (mut text, volume_value) in query.iter_mut() {
+            let new_value = match volume_value.0 {
+                ProgressBar::Music => (settings.music_volume * 100.) as u8,
+                ProgressBar::Sound => (settings.sound_volume * 100.) as u8,
+            };
+            text.0 = format!("{new_value}");
+        }
+    }
+}
+
+fn change_volume_keyboard(
+    selection: Res<PauseMenuSelection>,
+    keyboard: Res<ButtonInput<KeyCode>>,
+    mut settings: ResMut<SoundSettings>,
+    mut cooldown: ResMut<VolumeChangeCooldown>,
+    time: Res<Time>,
+) {
+    let change = if keyboard.pressed(KeyCode::ArrowLeft) {
+        -0.01
+    } else if keyboard.pressed(KeyCode::ArrowRight) {
+        0.01
+    } else {
+        return;
+    };
+
+    // On first press, apply immediately and reset timer
+    if keyboard.just_pressed(KeyCode::ArrowLeft) || keyboard.just_pressed(KeyCode::ArrowRight) {
+        cooldown.0.reset();
+    } else {
+        cooldown.0.tick(time.delta());
+        if !cooldown.0.just_finished() {
+            return;
+        }
+    }
+
+    match selection.0 {
+        ProgressBar::Music => {
+            settings.music_volume = (settings.music_volume + change).clamp(0.0, 1.0);
+        }
+        ProgressBar::Sound => {
+            settings.sound_volume = (settings.sound_volume + change).clamp(0.0, 1.0);
+        }
+    }
+}
+
+fn change_volume_gamepad(
+    selection: Res<PauseMenuSelection>,
+    gamepads: Query<&Gamepad>,
+    mut settings: ResMut<SoundSettings>,
+    mut cooldown: ResMut<VolumeChangeCooldown>,
+    time: Res<Time>,
+) {
+    let Some((change, just_pressed)) = gamepads.iter().find_map(|gamepad| {
+        if gamepad.pressed(GamepadButton::DPadLeft) {
+            Some((-0.01, gamepad.just_pressed(GamepadButton::DPadLeft)))
+        } else if gamepad.pressed(GamepadButton::DPadRight) {
+            Some((0.01, gamepad.just_pressed(GamepadButton::DPadRight)))
+        } else {
+            None
+        }
+    }) else {
+        return;
+    };
+
+    // On first press, apply immediately and reset timer
+    if just_pressed {
+        cooldown.0.reset();
+    } else {
+        cooldown.0.tick(time.delta());
+        if !cooldown.0.just_finished() {
+            return;
+        }
+    }
+
+    match selection.0 {
+        ProgressBar::Music => {
+            settings.music_volume = (settings.music_volume + change).clamp(0.0, 1.0);
+        }
+        ProgressBar::Sound => {
+            settings.sound_volume = (settings.sound_volume + change).clamp(0.0, 1.0);
+        }
+    }
+}