[ENHANCEMENT] Make Chart Editor's volume settings carry over to PlayState

source/funkin/play/PlayState.hx

@@ -239,6 +239,24 @@ class PlayState extends MusicBeatSubState
    */
   public var playbackRate:Float = 1.0;
 
+  /**
+   * The volume of the instrumental track.
+   * @default `1.0` for 100%.
+   */
+  public var instrumentalVolume:Float = 1.0;
+
+  /**
+   * The volume of the player vocals track.
+   * @default `1.0` for 100%.
+   */
+  public var playerVocalsVolume:Float = 1.0;
+
+  /**
+   * The volume of the opponent vocals track.
+   * @default `1.0` for 100%.
+   */
+  public var opponentVocalsVolume:Float = 1.0;
+
   /**
    * An empty FlxObject contained in the scene.
    * The current gameplay camera will always follow this object. Tween its position to move the camera smoothly.
@@ -1028,16 +1046,15 @@ class PlayState extends MusicBeatSubState
         }
       }
 
-      if (FlxG.sound.music != null) FlxG.sound.music.volume = 1;
+      if (FlxG.sound.music != null) FlxG.sound.music.volume = instrumentalVolume;
 
       if (vocals != null)
       {
         vocals.pause();
         vocals.time = startTimestamp - Conductor.instance.instrumentalOffset;
 
-        vocals.volume = 1;
-        vocals.playerVolume = 1;
-        vocals.opponentVolume = 1;
+        vocals.playerVolume = playerVocalsVolume;
+        vocals.opponentVolume = opponentVocalsVolume;
       }
 
       if (!fromDeathState)
@@ -2512,7 +2529,7 @@ class PlayState extends MusicBeatSubState
     }
 
     // Prevent the volume from being wrong.
-    FlxG.sound.music.volume = 1.0;
+    FlxG.sound.music.volume = instrumentalVolume;
     if (FlxG.sound.music.fadeTween != null) FlxG.sound.music.fadeTween.cancel();
 
     if (vocals != null)
@@ -2522,7 +2539,8 @@ class PlayState extends MusicBeatSubState
 
       vocals.time = startTimestamp - Conductor.instance.instrumentalOffset;
       vocals.pitch = playbackRate;
-      vocals.volume = 1.0;
+      vocals.playerVolume = playerVocalsVolume;
+      vocals.opponentVolume = opponentVocalsVolume;
 
       // trace('STARTING SONG AT:');
       // trace('${FlxG.sound.music.time}');
@@ -2986,7 +3004,7 @@ class PlayState extends MusicBeatSubState
     playerStrumline.hitNote(note, !event.isComboBreak);
     if (event.doesNotesplash) playerStrumline.playNoteSplash(note.noteData.getDirection());
     if (note.isHoldNote && note.holdNoteSprite != null) playerStrumline.playNoteHoldCover(note.holdNoteSprite);
-    if (vocals != null) vocals.playerVolume = 1;
+    if (vocals != null) vocals.playerVolume = playerVocalsVolume;
 
     // Display the combo meter and add the calculation to the score.
     if (note.scoreable)
@@ -3225,7 +3243,7 @@ class PlayState extends MusicBeatSubState
     comboPopUps.displayRating(daRating);
     if (combo >= 10) comboPopUps.displayCombo(combo);
 
-    if (vocals != null) vocals.playerVolume = 1;
+    if (vocals != null) vocals.playerVolume = playerVocalsVolume;
   }
 
   /**

source/funkin/save/Save.hx

@@ -189,6 +189,7 @@ class Save implements ConsoleClass
           chartEditorLiveInputStyle: ChartEditorLiveInputStyle.None,
           theme: ChartEditorTheme.Light,
           playtestStartTime: false,
+          playtestAudioSettings: false,
           downscroll: false,
           showNoteKinds: true,
           metronomeVolume: 1.0,
@@ -413,6 +414,23 @@ class Save implements ConsoleClass
     return data.optionsChartEditor.playtestStartTime;
   }
 
+  public var chartEditorPlaytestAudioSettings(get, set):Bool;
+
+  function get_chartEditorPlaytestAudioSettings():Bool
+  {
+    if (data.optionsChartEditor.playtestAudioSettings == null) data.optionsChartEditor.playtestAudioSettings = false;
+
+    return data.optionsChartEditor.playtestAudioSettings;
+  }
+
+  function set_chartEditorPlaytestAudioSettings(value:Bool):Bool
+  {
+    // Set and apply.
+    data.optionsChartEditor.playtestAudioSettings = value;
+    flush();
+    return data.optionsChartEditor.playtestAudioSettings;
+  }
+
   public var chartEditorTheme(get, set):ChartEditorTheme;
 
   function get_chartEditorTheme():ChartEditorTheme
@@ -1933,6 +1951,12 @@ typedef SaveDataChartEditorOptions =
    */
   var ?playtestStartTime:Bool;
 
+  /**
+   * If true, playtest songs with the current audio settings in the Chart Editor.
+   * @default `false`
+   */
+  var ?playtestAudioSettings:Bool;
+
   /**
    * Theme music in the Chart Editor.
    * @default `true`

source/funkin/ui/debug/charting/ChartEditorState.hx

@@ -604,6 +604,11 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
    */
   var playtestBotPlayMode:Bool = false;
 
+  /**
+   * If true, playtesting a chart will use the audio settings that were set here.
+   */
+  var playtestAudioSettings:Bool = false;
+
   /**
    * Enables or disables the "debugger" popup that appears when you run into a flixel error.
    */
@@ -2486,6 +2491,7 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
     showNoteKindIndicators = save.chartEditorShowNoteKinds;
     showSubtitles = save.chartEditorShowSubtitles;
     playtestStartTime = save.chartEditorPlaytestStartTime;
+    playtestAudioSettings = save.chartEditorPlaytestAudioSettings;
     currentTheme = save.chartEditorTheme;
     metronomeVolume = save.chartEditorMetronomeVolume;
     hitsoundVolumePlayer = save.chartEditorHitsoundVolumePlayer;
@@ -2516,6 +2522,7 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
     save.chartEditorDownscroll = isViewDownscroll;
     save.chartEditorShowNoteKinds = showNoteKindIndicators;
     save.chartEditorPlaytestStartTime = playtestStartTime;
+    save.chartEditorPlaytestAudioSettings = playtestAudioSettings;
     save.chartEditorTheme = currentTheme;
     save.chartEditorMetronomeVolume = metronomeVolume;
     save.chartEditorHitsoundVolumePlayer = hitsoundVolumePlayer;
@@ -6268,7 +6275,16 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
 
     Cursor.hide();
 
-    LoadingState.loadPlayState(targetStateParams, false, true, function(targetState) {
+    LoadingState.loadPlayState(targetStateParams, false, true, function(targetState)
+    {
+      // Apply volume settings.
+      if (playtestAudioSettings)
+      {
+        targetState.instrumentalVolume = (menubarItemVolumeInstrumental.value / 100.0) ?? 1.0;
+        targetState.playerVocalsVolume = (menubarItemVolumeVocalsPlayer.value / 100.0) ?? 1.0;
+        targetState.opponentVocalsVolume = (menubarItemVolumeVocalsOpponent.value / 100.0) ?? 1.0;
+      }
+
       targetState.vocals = audioVocalTrackGroup;
     });
   }

source/funkin/ui/debug/charting/handlers/ChartEditorToolboxHandler.hx

@@ -291,6 +291,17 @@ class ChartEditorToolboxHandler
       state.playtestSongScripts = checkboxSongScripts.selected;
     };
 
+    var checkboxAudioSettings:Null<CheckBox> = toolbox.findComponent('playtestAudioSettingsCheckbox', CheckBox);
+
+    if (checkboxAudioSettings == null)
+      throw 'ChartEditorToolboxHandler.buildToolboxPlaytestPropertiesLayout() - Could not find playtestAudioSettingsCheckbox component.';
+
+    state.playtestAudioSettings = checkboxAudioSettings.selected;
+
+    checkboxAudioSettings.onClick = _ -> {
+      state.playtestAudioSettings = checkboxAudioSettings.selected;
+    };
+
     return toolbox;
   }