virtual pet care type game = freezing input until need met

Hi all I am very new and learning to make a simple 2d virtual pet style game. The pet will need to be fed, kept clean, sleep, etc and these are all set on timers. I am thinking of inputting a maze the pet needs to get through to make it more of an active/survival game but first I need to wrap my brain around a lot of stuff obviously.

When hunger times out for example, I want it to display "your pet is hungry" and the pet stops and starts whining until you feed it and then the timer is reset. How would you recommend I do this in gdscript? Thank you in advance!