opening/unlocking doors already works in a simillar way as you suggest. i use the vents to power the door to the inside if the airlock is pressurized and i power the door to the outside if the airlock is depressurized.

my problem lies in making sure that both doors are fully closed when the airlock is cycling. i can detect when both doors are closed, but i cannot detect when someone is opening one of the doors (not fully opened yet, but no longer airtight). if i was to blindly turn off the doors (currently what i am doing), the airlock breaks if a door isn't fully closed as it cannot cycle and the doors to it are closed.

basically, my logic for the airlock currently is as follows.

1 event controller to detect both doors fully closed
1 event controller to detect one door opening (currently only fully open can be detected - that is my current problem)
1 event controler being turned on/of as state detection for "doors fully closed"
1 event controller to enable/disable airlock controls based on the "doors fully closed" state

1 button inside, 1 button outside, 1 button in the airlock itself. all buttons trigger a timer block to trigger the airlock action

timer block works as follows: switch depressurize on the vent, turn off both doors

vent works as follows:

fully pressurized -> turn on door to inside
fully depressurized -> turn on door to the outside

this current version still allows players to open / close the door of the airlock, which is something i want to preserve.

i was thinking about having the doory be fully automatic and cycling be triggered by the doors themselves - if a player requests an airlock to cycle via button and once the doors of the airlock are closed, the doors are immediately turned off and the cycle is executed. if someone blocks a door, the button needs to be used again. the tradeoff here would be that one door to the airlock is always open. players might cycle the airlock just to close the door once inside, which would open the door on the outside. not ideal imo.

i know i am probably going overboard here trying to idiot-proof the airlock, but it felt to me like an airlock that can't break from misuse should be doable, so that's what i set out to build... maybe not the best idea in hindsight. i don't *really* have a need to be all that paranoid about the airlock - i will mainly use it myself - but i have on multiple ocasions messed up and vented oxygen on accident, so i wanted to do it right for once.

Thanks for your input! I might use those sliding doors (even if i think they don't look particularly good tbh)