A person waiting for the elevator doesn't put anything into the queue. The loop for challenge 1 is: q: [] idle -> enqueue 0, 1, 2 --- q: [0, 1, 2] go to

A person waiting for the elevator doesn't put anything into the queue. The loop for challenge 1 is: q: [] idle -> enqueue 0, 1, 2 --- q: [0, 1, 2] go to floor 0; (noop@floor0)q: [1, 2] go to floor 1; q: [2] go to floor 2; q: [] idle -> enqueue 0, 1, 2 --- q: [0, 1, 2] go to floor 0; q: [1, 2] ... It doesn't matter if anyone wants to go to that floor who is in the elevator or wants to get on the elevator at that floor. https://play.elevatorsaga.com/documentation.html https://play.elevatorsaga.com/documentation.html And then you get into the events... something like this would likely be interesting/chaotic. elevator.on("floor_button_pressed", function(floorNum) { elevator.goToFloor(floorNum, true); })