can't pass through some item
you can't pass through redstone comparator,redstone reapeter and trapdorr when you don't have a block directly above your head.
VIDEO:http://youtu.be/Gdcj5wti5TI
you can't pass through redstone comparator,redstone reapeter and trapdorr when you don't have a block directly above your head.
VIDEO:http://youtu.be/Gdcj5wti5TI