If's & else if's without void loop

[alexokaban]

@joeltenzing

Hi there, I am trying to write a sketch with two infra red detectors. I would like to use 'if', 'else if' and 'else' but not in the 'void loop' because my goal is that my Boe-bot executes 3 different series of maneuvers with 3 different conditions but only once each. Could anyone help me please?

Here

https://www.norwegiancreations.com/2017/03/state-machines-and-arduino-implementation/