Suiyan
I think I have a better solution. Say you have buildings 1 to 10. Just make 10 small formations that delay the signal, and a main formation to act as a clock to activate the signal or each formation in order. Sure it's not a mega scale solution but I feel like it's pretty okay for now. The complexity is also linear so it's not bad I'd say.
I can't say weather I love you for this books or hate you for having to wait for more chapters every day I'm littlerly going crazy watch the time or the hour waiting for the next chapter to be posted. You see when I get into something my whole world revolves around it and right now this is the only thing I can think of all day I keep playing scenes of the book back and forth through my head I also keep re reading the book while I wait I think I might just go crazy, but thank so much for this amazing read i think it's my new favorite book but I think that i might hate it by the time its finished since it is driving me insane, just kidding. I can't wait to read more thank you so much!!