Restructred note kinds a bit to add hard-coded note kinds, then implemented the "noanim" note kind into the chart editor.

source/funkin/InitState.hx

@@ -267,7 +267,7 @@ class InitState extends FlxState
     // Move it to use a BaseRegistry.
     CharacterDataParser.loadCharacterCache();
 
-    NoteKindManager.loadScripts();
+    NoteKindManager.initialize();
 
     ModuleHandler.buildModuleCallbacks();
     ModuleHandler.loadModuleCache();

source/funkin/data/event/SongEventRegistry.hx

@@ -13,7 +13,7 @@ class SongEventRegistry
 {
   /**
    * Every built-in event class must be added to this list.
-   * Thankfully, with the power of `SongEventMacro`, this is done automatically.
+   * Thankfully, with the power of `ClassMacro`, this is done automatically.
    */
   static final BUILTIN_EVENTS:List<Class<SongEvent>> = ClassMacro.listSubclassesOf(SongEvent);
 

source/funkin/modding/PolymodHandler.hx

@@ -587,7 +587,7 @@ class PolymodHandler
     FreeplayStyleRegistry.instance.loadEntries();
 
     CharacterDataParser.loadCharacterCache(); // TODO: Migrate characters to BaseRegistry.
-    NoteKindManager.loadScripts();
+    NoteKindManager.initialize();
     ModuleHandler.loadModuleCache();
     ModuleHandler.callOnCreate();
   }

source/funkin/play/character/BaseCharacter.hx

@@ -7,6 +7,8 @@ import funkin.data.character.CharacterData.CharacterDataParser;
 import funkin.data.character.CharacterData.CharacterRenderType;
 import funkin.play.stage.Bopper;
 import funkin.play.notes.NoteDirection;
+import funkin.play.notes.notekind.NoteKind;
+import funkin.play.notes.notekind.NoteKindManager;
 
 /**
  * A Character is a stage prop which bops to the music as well as controlled by the strumlines.

source/funkin/play/notes/notekind/NoAnimNoteKind.hx

@@ -0,0 +1,14 @@
+package funkin.play.notes.notekind;
+
+/**
+ * A custom note kind which has custom functionality, preventing singing animations from playing.
+ */
+class NoAnimNoteKind extends NoteKind
+{
+  static final DISABLE_ANIMATIONS:Bool = true;
+
+  public function new()
+  {
+    super("noanim", "Disables singing animations", null, [], DISABLE_ANIMATIONS, null);
+  }
+}

source/funkin/play/notes/notekind/NoteKind.hx

@@ -45,13 +45,13 @@ class NoteKind implements INoteScriptedClass
    */
   public var scoreable:Bool = true;
 
-  public function new(noteKind:String, description:String = "", ?noteStyleId:String, ?params:Array<NoteKindParam>, ?anim:Bool, ?suffix:String)
+  public function new(noteKind:String, description:String = "", ?noteStyleId:String, ?params:Array<NoteKindParam>, ?noanim:Bool, ?suffix:String)
   {
     this.noteKind = noteKind;
     this.description = description;
     this.noteStyleId = noteStyleId;
     this.params = params ?? [];
-    this.noanim = anim ?? false;
+    this.noanim = noanim ?? false;
     this.suffix = suffix ?? '';
   }
 

source/funkin/play/notes/notekind/NoteKindManager.hx

@@ -8,9 +8,16 @@ import funkin.data.notestyle.NoteStyleRegistry;
 import funkin.play.notes.notestyle.NoteStyle;
 import funkin.play.notes.notekind.ScriptedNoteKind;
 import funkin.play.notes.notekind.NoteKind.NoteKindParam;
+import funkin.util.macro.ClassMacro;
 
 class NoteKindManager
 {
+  /**
+   * Every built-in note kind class must be added to this list.
+   * Thankfully, with the power of `ClassMacro`, this is done automatically.
+   */
+  static final BUILTIN_KINDS:List<Class<NoteKind>> = ClassMacro.listSubclassesOf(NoteKind);
+
   /**
    * A map of all note kinds, keyed by their name.
    * This is used to retrieve note kinds by their name.
@@ -22,12 +29,56 @@ class NoteKindManager
    * @param noteKind The name of the note kind.
    * @return The note kind, or null if it doesn't exist.
    */
-  public static function getNoteKind(noteKind:String):Null<NoteKind>
+  public static function getNoteKind(?noteKind:String):Null<NoteKind>
   {
+    if (noteKind == null) return null;
     return noteKinds.get(noteKind);
   }
 
-  public static function loadScripts():Void
+  /**
+   * Initialize custom behavior for note kinds.
+   */
+  public static function initialize():Void
+  {
+    clearNoteKindCache();
+
+    //
+    // BASE GAME EVENTS
+    //
+    registerBaseNoteKinds();
+    registerScriptedNoteKinds();
+  }
+
+  /**
+   * Register the hard-coded note kinds.
+   */
+  public static function registerBaseNoteKinds():Void
+  {
+    trace('Instantiating ${BUILTIN_KINDS.length} built-in note kinds...');
+    for (noteKindCls in BUILTIN_KINDS)
+    {
+      var noteKindClsName:String = Type.getClassName(noteKindCls);
+      if (noteKindClsName == 'funkin.play.notes.notekind.NoteKind'
+        || noteKindClsName == 'funkin.play.notes.notekind.ScriptedNoteKind') continue;
+
+      var kind:NoteKind = Type.createInstance(noteKindCls, ["UNKNOWN"]);
+
+      if (kind != null)
+      {
+        trace('  Loaded built-in note kind: ${kind.noteKind}');
+        noteKinds.set(kind.noteKind, kind);
+      }
+      else
+      {
+        trace('  Failed to load built-in note kind: ${noteKindClsName}');
+      }
+    }
+  }
+
+  /**
+   * Register the scripted note kinds provided by mods.
+   */
+  public static function registerScriptedNoteKinds():Void
   {
     var scriptedClassName:Array<String> = ScriptedNoteKind.listScriptClasses();
     if (scriptedClassName.length > 0)
@@ -97,12 +148,22 @@ class NoteKindManager
     return NoteStyleRegistry.instance.fetchEntry(noteStyleId);
   }
 
-  public static function listNoteStyles(songNoteDatas:Array<SongNoteData>):Array<NoteStyle>
+  /**
+   * Get a list of all the note styles used by the given notes.
+   * Great for preloading.
+   * @param songNoteDatas The notes to query for note styles.
+   * @return The note styles to load.
+   */
+  public static function listNoteStylesByNoteData(songNoteDatas:Array<SongNoteData>):Array<NoteStyle>
   {
     var results:Array<NoteStyle> = [];
     for (songNoteData in songNoteDatas)
     {
       var noteStyle:NoteStyle = getNoteStyle(songNoteData.kind, null);
+      if (noteStyle != null && !results.contains(noteStyle))
+      {
+        results.push(noteStyle);
+      }
     }
     return results;
   }
@@ -129,23 +190,6 @@ class NoteKindManager
     return noteStyleId;
   }
 
-  /**
-   * Retrieve custom params of the given note kind
-   * @param noteKind Name of the note kind
-   * @return Array<NoteKindParam>
-   */
-  public static function getNoteKind(noteKind:Null<String>):Null<NoteKind>
-  {
-    if (noteKind == null)
-    {
-      return null;
-    }
-    else
-    {
-      return noteKinds.get(noteKind);
-    }
-  }
-
   /**
    * Retrive custom params of the given note kind
    * @param noteKind Name of the note kind
@@ -160,4 +204,13 @@ class NoteKindManager
 
     return noteKinds.get(noteKind)?.params ?? [];
   }
+
+  /**
+   * Clear the note kind cache.
+   * Be sure to register the note kinds again before trying to use them.
+   */
+  public static function clearNoteKindCache():Void
+  {
+    noteKinds.clear();
+  }
 }

source/funkin/ui/debug/charting/util/ChartEditorDropdowns.hx

@@ -157,6 +157,7 @@ class ChartEditorDropdowns
     // Base
     "" => "Default",
     "~CUSTOM~" => "Custom",
+    "noanim" => "No Animation",
     // Weeks 1-7
     "censor" => "[UH-OH!] Censor Bar",
     "mom" => "Mom Sings (Week 5)",