fixed scoping

src/core/SoundCubeApi.ttslua

@@ -1,5 +1,6 @@
 do
   local SoundCubeApi = {}
+  local internal = {}
 
   -- this table links the name of a trigger effect to its index
   local soundIndices = {
@@ -8,14 +9,14 @@ do
     ["Dark Souls"] = 2
   }
 
-  function playTriggerEffect(index)
+  function internal.playTriggerEffect(index)
     getObjectsWithTag("SoundCube")[1].AssetBundle.playTriggerEffect(index)
   end
 
   -- plays the by name requested sound
   ---@param soundName String Name of the sound to play
   SoundCubeApi.playSoundByName = function(soundName)
-    playTriggerEffect(soundIndices[soundName])
+    internal.playTriggerEffect(soundIndices[soundName])
   end
 
   return SoundCubeApi