+ open and close sound to filterwheel

scripts/songselect/filterwheel.lua

@@ -86,12 +86,14 @@ local specialFolders = {
 
 -- AUDIO
 game.LoadSkinSample('song_wheel/cursor_change.wav');
+game.LoadSkinSample('filter_wheel/open_close.wav');
 
 local resx, resy = game.GetResolution()
 local desw, desh = 1080, 1920
 local scale = 1;
 
 local isFilterWheelActive = false;
+local previousActiveState = false; -- for open/close sounds
 
 local selectionMode = 'folders';
 local selectedFolder = 1;
@@ -345,6 +347,12 @@ render = function(deltatime, shown)
     SongSelectHeader.draw(deltatime);
     Footer.draw(deltatime);
 
+
+    if (isFilterWheelActive ~= previousActiveState) then 
+        game.PlaySample('filter_wheel/open_close.wav');
+        previousActiveState = isFilterWheelActive;
+    end
+
     -- Debug text
     gfx.BeginPath();
     gfx.FontSize(18)