{




    init: function(elevators, floors) {


        var upAsked = [];
        var downAsked  =[];
        var state = [];
        var passengers = [];


        var figureOutNextFloor = function(elevator, stops, state) {
            //passenger load is updated after the stop event, so I track stops and return empty also if this was the last one
            var empty = elevator.loadFactor() == 0 || stops.every(function(k){return !k;});

           if (elevator.destinationQueue.length>0) return
           console.log('elevator stats: floor '+elevator.currentFloor() + ' up/down flags '+ elevator.goingUpIndicator()+'/'+ elevator.goingDownIndicator());
           console.log('passenger stats: called floors '+stops + ' down reservations '+ downAsked+' up reservations '+ upAsked);
           //your code goes here

           if (empty && upAsked[0]) {
               elevator.goToFloor(0);
           }
        }






        for (var i = 0; i < elevators.length ; i++) {
             passengers[i] = [];
               state[i] = -1;

            var fcb = function(k) { return function(j) {
                   passengers[k][j]=true;
                   figureOutNextFloor(elevators[k], passengers[k], state[k]);
            }};

                var icb = function(k) { return function() {
                   figureOutNextFloor(elevators[k], passengers[k], state[k]);
                }};

            elevators[i].on("idle", icb(i));
            //elevators[i].on("passing_floor", icb(i));


            elevators[i].on("floor_button_pressed", fcb(i));

            var scb = function(k) { return function(j) {
                if(elevators[j].goingUpIndicator()) {
                    upAsked[j]=false;
                }
                if(elevators[j].goingDownIndicator()) {
                    downAsked[j]=false;
                }
                passengers[k][j]=false;
            }};
            elevators[i].on("stopped_at_floor", scb(i));


        };


        for (var i = 0; i < floors.length ; i++) {
           downAsked[i]=false;
           upAsked[i]=false;
            for (var k = 0; k<elevators.length;k++)
            passengers[k][i] = false;

            var ucb = function(k) { return function() {
               upAsked[k] = true;
                for(var z=0;z<elevators.length;z++) {
                    figureOutNextFloor(elevators[z], passengers[z], state[z]);
                }
            }};
            floors[i].on("up_button_pressed", ucb(i));

            var dcb = function(k) { return function() {
                downAsked[k] = true;
                for(var z=0;z<elevators.length;z++) {
                    figureOutNextFloor(elevators[z], passengers[z], state[z]);
                }

            }};
            floors[i].on("down_button_pressed", dcb(i));

        };

    },
    update: function(dt, elevators, floors) {

    }
}