Well my idea was that when the player places the block it renders a taller structure, like this:
https://dl-web.dropbox.com/get/asdqweq13eqdw.png?_subject_uid=289111686&w=AABOQ59V3Ph9le7y0xc45DNJMyj-aGwbKB708FrMuXvEPA
and it barely added the block to the game(thats why I think the problem is in the maic class file)