How to randomly generate the opening and closing of a matrix of gates.

[Razzanda]

In this scenario there are 36 squares in a 6 by 6 matrix. Between each of the squares is a gate in all 60 gates. For this particular map I want the gates to open and closed on a set pre-selected interval. At the beginning all the gates are open so the players can spread out among the squares, however, after lets say 1-2 minutes, the real triggering begins. The catch is that I want all the gates to be randomly opened or closed. For example a gate is open during time intervals A and B, but closes on C, opens on D, stays open on E, and so on. So that the pattern of open and closed gates is completely arbitrary and generated by the game. The second catch is that I want at least one gate in every square to be open at all times. I’m somewhat new at programming something this complex, at least to me, so any help would be greatly appreciated. If you need any other details, let me know.

 

[WilliamPa]

Here shuld be one trigger, every 2 seconds it opens one gate and closes one gate, the prob is the gates shuld fill almost whole map, and it may open 2 gates or none, depending how big the squares are.

OpenRandomDoors
    Events
        Time - Every 2.00 seconds of game time
    Conditions
    Actions
        Destructible - Pick every destructible in (Region centered at (Random point in (Entire map)) with size (250.00, 250.00)) and do (Actions)
            Loop - Actions
                Destructible - Open (Picked destructible)
        Destructible - Pick every destructible in (Region centered at (Random point in (Entire map)) with size (250.00, 250.00)) and do (Actions)
            Loop - Actions
                Destructible - Close (Picked destructible)

 

[Razzanda]

square/gate specifications.

Each square is approximately 12x12 with a four square gap at the center of each side of the square where a gate is located. Each square shares a gate with the squares adjacent to it. Thus the gates on one square effect the squares adjacent to them influence their gate pattern. For example if the shared gate is closed, then the at least one gate on that adjacent square has to be open which limits the possibilities slightly. The reason for this is that I don't want any square to be completely isolated during any given time interval.
Thanks for the response though.