probably last wip

i'll resume tmr

source/funkin/backend/assets/TranslatedAssetLibrary.hx

@@ -12,14 +12,25 @@ class TranslatedAssetLibrary extends AssetLibrary implements IModsAssetLibrary {
 	public var basePath:String;
 	public var prefix:String = Paths.translFolderName + "/";
 
-	public function new(langFolder:String) {
-		this.libName = this.modName = langFolder;
-		this.basePath = prefix + libName + "/";
+	public var langFolder(get, set):String;
+	@:noCompletion private inline function get_langFolder():String {
+		return libName;
+	}
+	@:noCompletion private inline function set_langFolder(value:String):String {
+		basePath = prefix + (libName = modName = (value == null ? value : TranslationUtil.DEFAULT_LANGUAGE.split("/")[0])) + "/";
+		return libName;
+	}
+
+	public function new(?langFolder:String) {
 		super();
+		this.langFolder = langFolder;
 	}
 
 	function toString():String
-		return '(TranslatedAssetLibrary: The labguage folder is $libName)';
+		return '(TranslatedAssetLibrary: The language folder is $libName)';
+
+	private inline function getAssetPath():String  // because of the IModsAssetLibrary  - Nex
+		return basePath;
 
 	public override function getAudioBuffer(id:String):AudioBuffer
 	{
@@ -111,9 +122,6 @@ class TranslatedAssetLibrary extends AssetLibrary implements IModsAssetLibrary {
 		return [];
 	}
 
-	private inline function getAssetPath():String
-		return basePath;
-
 	private function __isCacheValid(cache:Map<String, Dynamic>, asset:String, isLocal:Bool = false):Bool
 	{
 		for(lib in ModsFolder.getLoadedModsLibs()) {

source/funkin/backend/utils/TranslationUtil.hx

@@ -1,5 +1,6 @@
 package funkin.backend.utils;
 
+import funkin.backend.assets.TranslatedAssetLibrary;
 import funkin.backend.assets.ModsFolderLibrary;
 import funkin.backend.assets.ModsFolder;
 import funkin.backend.assets.IModsAssetLibrary;
@@ -68,7 +69,9 @@ class TranslationUtil
 	public static function setLanguage(?name:String) {
 		if(name == null) name = curLanguage;
 		transMap = loadLanguage(name);
-		// To add the switch for the language in TranslatedAssetLibrary here!  - Nex
+
+		for(mod in ModsFolder.getLoadedModsLibs()) if(mod is TranslatedAssetLibrary)
+			cast(mod, TranslatedAssetLibrary).langFolder = name.split("/")[0];
 	}
 
 	/**