elevator.js

{
    init: function(elevators, floors) {
        
        function getMethod(i, method) {

            var methods =
                {
                    "idle": function() {

                        var elevator = elevators[i];

                        elevator.goToFloor(Math.round(floors.length * i / elevators.length));
                    },
                    "floor_button_pressed": function(floorNum) {

                        var elevator = elevators[i];

                        elevator.goToFloor(floorNum);

                        getMethod(i, "sort_destination_queue")(i);
                    },
                    "passing_floor": function(floorNum) {
                        
                        var floor = floors[floorNum];
                        
                        if(floor.buttonStates.up || floor.buttonStates.down) {
                            elevators[i].goToFloor(floorNum);
                            getMethod(i, "sort_destination_queue")(i);
                        }
                    },
                    "up_button_pressed": function() {
                        
                        for(var j = 0; j < elevators.length; j++) {
                            
                            if(elevators[j].loadFactor() == 0) {
                                
                                elevators[j].goToFloor(i);
                                getMethod(j, "sort_destination_queue")(j);
                                return;
                            }
                        }
                        
                        var num = Math.floor(Math.random() * elevators.length);

                        elevators[num].goToFloor(i);
                        getMethod(num, "sort_destination_queue")(num);
                    },
                    "down_button_pressed": function() {

                        for(var j = 0; j < elevators.length; j++) {

                            if(elevators[j].loadFactor() == 0) {

                                elevators[j].goToFloor(i);
                                getMethod(j, "sort_destination_queue")(j);
                                return;
                            }
                        }

                        var num = Math.floor(Math.random() * elevators.length);

                        elevators[num].goToFloor(i);
                        getMethod(num, "sort_destination_queue")(num);
                    },
                    "sort_destination_queue": function(i) {

                        elevator = elevators[i];
                        
                        var ary = elevator.destinationQueue;
                        
                        var upAry = [];
                        var downAry = [];
                        var sameAry = [];
                        
                        for(var i = 0; i < ary.length; i++) {
                            
                            if(ary[i] < elevator.currentFloor())
                                downAry[downAry.length] = ary[i];
                            else if(ary[i] > elevator.currentFloor())
                                upAry[upAry.length] = ary[i];
                            else
                                sameAry[0] = ary[i];
                        }
                        
                        upAry.sort();
                        downAry.sort();
                        downAry.reverse();
                        
                        if(upAry.length > downAry.length) {
                            
                            ary = sameAry.concat(upAry, downAry);
                        }
                        else {

                            ary = sameAry.concat(downAry, upAry);
                        }
                        
                        elevator.destinationQueue = ary;
                        elevator.checkDestinationQueue();
                    },
                };

            return methods[method];
        }
        
        for(var i = 0; i < elevators.length; i++) {

            elevators[i].on("idle", getMethod(i, "idle"));
            elevators[i].on("floor_button_pressed ", getMethod(i, "floor_button_pressed"));
            elevators[i].on("passing_floor ", getMethod(i, "passing_floor"));
        }

        for(var i = 0; i < floors.length; i++) {

            floors[i].on("up_button_pressed", getMethod(i, "up_button_pressed"));
            floors[i].on("down_button_pressed ", getMethod(i, "down_button_pressed"));
        }
    },
        update: function(dt, elevators, floors) {
            // We normally don't need to do anything here
        }
}