How can I make a redstone door that only allows one person through at a time?
I have made several efforts to solve by myself.
I realise that a simple button iron/wooden door will not work, as the door stays open long enough for multiple people to pass through.
I realise too that even by using a monostable circuit to open the door people can pass through simultaneously.
I've tried relying on the glitchiness of servers to help, for example I tried using a "dropper" style door, where people press a button, fall through a hole opened beneath them and a slime block underneath bounces them out. However, this is not consistent enough.
I've tried chaining multiple iron doors, but any method I thought of suffered the same problems as single iron doors.
I will implement this on a 1.10 server, so I tried relying too on the entity pushing feature, by having two adjacent pressure plates, of which only one can be triggered to open the door, hoping that players would push each other onto adjacent plates. However, this doesn't happen consistently, and the door still opens to two players, and while it is open players can rush in from elsewhere.