save/load many of the game settings to/from config file

src/data/outfly.toml

@@ -14,8 +14,15 @@
 # fullscreen_mode may be "borderless", "legacy", or "sized"
 fullscreen_mode = "borderless"
 
-# window_mode may be "windowed", or "fullscreen"
-window_mode = "fullscreen"
+# fullscreen_on may be true or false
+fullscreen_on = true
 
 # render_mode may be "vulkan" or "gl"
 render_mode = "vulkan"
+
+# The following options are booleans (may be true or false)
+augmented_reality = true
+music = true
+sound = true
+third_person = true
+shadows_sun = true

src/game.rs

@@ -25,6 +25,7 @@ pub const CHEAT_WARP_3: &str = "busstopclippy3";
 pub struct GamePlugin;
 impl Plugin for GamePlugin {
     fn build(&self, app: &mut App) {
+        app.add_systems(Startup, setup);
         app.add_systems(Update, handle_cheats.run_if(in_control));
         app.add_systems(Update, debug);
         app.add_systems(PostUpdate, handle_game_event);
@@ -106,6 +107,14 @@ impl Turn {
     }
 }
 
+pub fn setup(mut settings: ResMut<Settings>, prefs: Res<var::Preferences>) {
+    settings.hud_active = prefs.augmented_reality;
+    settings.mute_music = !prefs.music;
+    settings.mute_sfx = !prefs.sound;
+    settings.third_person = prefs.third_person;
+    settings.shadows_sun = prefs.shadows_sun;
+}
+
 pub fn handle_game_event(
     mut settings: ResMut<Settings>,
     mut er_game: EventReader<GameEvent>,
@@ -118,6 +127,7 @@ pub fn handle_game_event(
     mut mapcam: ResMut<camera::MapCam>,
     mut log: ResMut<hud::Log>,
     opt: Res<var::CommandLineOptions>,
+    mut prefs: ResMut<var::Preferences>,
 ) {
     for event in er_game.read() {
         match event {
@@ -125,16 +135,22 @@ pub fn handle_game_event(
                 settings.hud_active = turn.to_bool(settings.hud_active);
                 ew_togglemusic.send(audio::ToggleMusicEvent());
                 ew_updateoverlays.send(hud::UpdateOverlayVisibility);
+                prefs.augmented_reality = settings.hud_active;
+                prefs.save();
             }
             GameEvent::SetMusic(turn) => {
                 // TODO invert "mute_music" to "music_active"
                 settings.mute_music = turn.to_bool(settings.mute_music);
                 ew_togglemusic.send(audio::ToggleMusicEvent());
+                prefs.music = !settings.mute_music;
+                prefs.save();
             }
             GameEvent::SetSound(turn) => {
                 // TODO invert "mute_sfx" to "sfx_active"
                 settings.mute_sfx = turn.to_bool(settings.mute_sfx);
                 ew_togglemusic.send(audio::ToggleMusicEvent());
+                prefs.sound = !settings.mute_sfx;
+                prefs.save();
             }
             GameEvent::SetMap(turn) => {
                 settings.map_active = turn.to_bool(settings.map_active);
@@ -147,10 +163,12 @@ pub fn handle_game_event(
             GameEvent::SetFullscreen(turn) => {
                 for mut window in &mut q_window {
                     let current_state = window.mode != WindowMode::Windowed;
-                    window.mode = match turn.to_bool(current_state) {
+                    prefs.fullscreen_on = turn.to_bool(current_state);
+                    window.mode = match prefs.fullscreen_on {
                         true => opt.window_mode_fullscreen,
                         false => WindowMode::Windowed,
                     };
+                    prefs.save();
                 }
             }
             GameEvent::SetMenu(turn) => {
@@ -159,6 +177,8 @@ pub fn handle_game_event(
             }
             GameEvent::SetThirdPerson(turn) => {
                 settings.third_person = turn.to_bool(settings.third_person);
+                prefs.third_person = settings.third_person;
+                prefs.save();
             }
             GameEvent::SetRotationStabilizer(turn) => {
                 settings.rotation_stabilizer_active =
@@ -169,6 +189,8 @@ pub fn handle_game_event(
                 for mut light in &mut q_light {
                     light.shadows_enabled = settings.shadows_sun;
                 }
+                prefs.shadows_sun = settings.shadows_sun;
+                prefs.save();
             }
             GameEvent::Achievement(name) => {
                 ew_sfx.send(audio::PlaySfxEvent(audio::Sfx::Achieve));

src/var.rs

@@ -14,7 +14,7 @@
 use crate::prelude::*;
 use bevy::prelude::*;
 use bevy::window::WindowMode;
-use serde::Deserialize;
+use serde::{Serialize, Deserialize};
 use std::collections::{HashMap, HashSet};
 use std::env;
 use std::fs;
@@ -410,12 +410,17 @@ impl AchievementTracker {
     }
 }
 
-#[derive(Resource, Deserialize, Debug, Default)]
+#[derive(Resource, Serialize, Deserialize, Debug, Default)]
 #[serde(default)]
 pub struct Preferences {
     pub fullscreen_mode: String,
-    pub window_mode: String,
+    pub fullscreen_on: bool,
     pub render_mode: String,
+    pub augmented_reality: bool,
+    pub music: bool,
+    pub sound: bool,
+    pub third_person: bool,
+    pub shadows_sun: bool,
 
     #[serde(skip)]
     pub source_file: Option<String>,
@@ -430,14 +435,35 @@ impl Preferences {
         }
     }
     pub fn get_window_mode(&self) -> WindowMode {
-        match self.window_mode.as_str() {
-            "fullscreen" => self.get_fullscreen_mode(),
-            _ => WindowMode::Windowed,
+        match self.fullscreen_on {
+            true => self.get_fullscreen_mode(),
+            false => WindowMode::Windowed,
         }
     }
     pub fn render_mode_is_gl(&self) -> bool {
         return self.render_mode == "gl";
     }
+
+    pub fn save(&self) {
+        if let Some(path) = get_prefs_path() {
+            match toml_edit::ser::to_document::<Preferences>(self) {
+                Ok(doc) => {
+                    dbg!(&doc);
+                    match fs::write(path.clone(), doc.to_string()) {
+                        Ok(_) => {
+                            info!("Saved preferences to {path}.");
+                        }
+                        Err(error) => {
+                            error!("Error while writing preferences: {:?}", error);
+                        }
+                    }
+                }
+                Err(error) => {
+                    error!("Error while writing preferences: {:?}", error);
+                }
+            }
+        }
+    }
 }
 
 fn file_is_readable(file_path: &str) -> bool {