Star Trek Phaser, power bar LED sequencer circuit?
I am currently re-building a Star Trek type 2 phaser, if that means anything to anyone. I would like to know how to create a circuit that does the following: There are 16 LEDs in two rows of 8. I would like to cycle through them one after another with 2 button switches. ie press a button on the left and the first LED comes on. Press it again and the next LED comes on. Press it a third time and the third LED comes on. and so on. At his point there should be 3 LEDs on. Then, press the right button and that third LED goes off. Press again and the second goes off and so on.
Hope this isn't to long winded. Below is the link to a vid of what I am trying, not very well, to describe.
I would be grateful if anyone could help me out on this. I have searched the web with no luck so I thought I would sign up to my favourite electronics website and ask.