loads a sound source (if not loaded already) from a file and plays it.
[Visual Basic] Overloads Public Function Play2D( _ ByVal soundFilename As String, _ ByVal playLooped As Boolean, _ ByVal startPaused As Boolean _ ) As ISound
[C#] public ISound Play2D( stringsoundFilename, boolplayLooped, boolstartPaused );