Implement difficulty rank into Metadata toolbox.

assets

@@ -1 +1 @@
-Subproject commit 251d4640bd77ee0f0b6122a13f123274c43dd3f5
+Subproject commit 02da1c72a22ddf8cc167f014888a94ebf468d5b1

source/funkin/data/song/SongData.hx

@@ -418,10 +418,10 @@ class SongPlayData implements ICloneable<SongPlayData>
 
   /**
    * The difficulty ratings for this song as displayed in Freeplay.
-   * Key is a difficulty ID or `default`.
+   * Key is a difficulty ID.
    */
   @:optional
-  @:default(['default' => 1])
+  @:default(['normal' => 0])
   public var ratings:Map<String, Int>;
 
   /**

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

@@ -1294,6 +1294,29 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
     return currentSongChartData.events = value;
   }
 
+  /**
+   * Convenience property to get the rating for this difficulty in the Freeplay menu.
+   */
+  var currentSongChartDifficultyRating(get, set):Int;
+
+  function get_currentSongChartDifficultyRating():Int
+  {
+    var result:Null<Int> = currentSongMetadata.playData.ratings.get(selectedDifficulty);
+    if (result == null)
+    {
+      // Initialize to the default value if not set.
+      currentSongMetadata.playData.ratings.set(selectedDifficulty, 0);
+      return 0;
+    }
+    return result;
+  }
+
+  function set_currentSongChartDifficultyRating(value:Int):Int
+  {
+    currentSongMetadata.playData.ratings.set(selectedDifficulty, value);
+    return value;
+  }
+
   var currentSongNoteStyle(get, set):String;
 
   function get_currentSongNoteStyle():String

source/funkin/ui/debug/charting/toolboxes/ChartEditorMetadataToolbox.hx

@@ -151,6 +151,10 @@ class ChartEditorMetadataToolbox extends ChartEditorBaseToolbox
       labelScrollSpeed.text = 'Scroll Speed: ${chartEditorState.currentSongChartScrollSpeed}x';
     };
 
+    inputDifficultyRating.onChange = function(event:UIEvent) {
+      chartEditorState.currentSongChartDifficultyRating = event.target.value;
+    };
+
     buttonCharacterOpponent.onClick = function(_) {
       chartEditorState.openCharacterDropdown(CharacterType.DAD, false);
     };
@@ -175,6 +179,7 @@ class ChartEditorMetadataToolbox extends ChartEditorBaseToolbox
     inputStage.value = chartEditorState.currentSongMetadata.playData.stage;
     inputNoteStyle.value = chartEditorState.currentSongMetadata.playData.noteStyle;
     inputBPM.value = chartEditorState.currentSongMetadata.timeChanges[0].bpm;
+    inputDifficultyRating.value = chartEditorState.currentSongChartDifficultyRating;
     inputScrollSpeed.value = chartEditorState.currentSongChartScrollSpeed;
     labelScrollSpeed.text = 'Scroll Speed: ${chartEditorState.currentSongChartScrollSpeed}x';
     frameVariation.text = 'Variation: ${chartEditorState.selectedVariation.toTitleCase()}';