How will I be able to switch power from sprinkler valve to sprinkler valve in air cannons?

I want to build an air cannon that uses four sprinkler valves. I want to be able to hit a momentary switch and the first valve will open. Then when I hit the momentary switch again it will open the other valve instead of the first valve. How will I be able to do this without the use of micro controllers?

first off, if your doing this in air cannons you will want to modify them for pneumatic use. then the easiest way would just be to have 4 triggers.
Actually, I am doing that. That's why there's four sprinkler valves. I know how to modify them, and I have done it twice, but you can't make them semi auto.