Elevator saga

elevator.js

//level 9
//level 9
{
    init: function(elevators, floors) {
        function reorderDestinationqueue(q) {
            var qnew = [];
            var alreadyInQueue = {};
            for (var i=0; i < q.length ; i++) {
                if (!alreadyInQueue[q[i]]) {
                    qnew.push(q[i]);
                }
                alreadyInQueue[q[i]] = true;
            }
            return qnew;
        }
        function skipUselessDestinations(loadFactor, tasks, q) {
            if (loadFactor === 1) {
                return q.filter(function (floor) { return tasks[floor]; });
            } else {
                return q;
            }
        }
        elevators.forEach(scheduleElv);
        var idleElevators = [];
        debugger;
        function scheduleElv(elevator, idx){
            elevator.idx = idx;
            elevator.move = function weMove(floorNum) {
                var idlePos = idleElevators.indexOf(elevator);
                if (idlePos > -1) {
                    idleElevators.splice(idlePos, 1);
                }
                elevator.destinationQueue.push(floorNum);
                elevator.destinationQueue = skipUselessDestinations(elevator.loadFactor(), elevator.tasks, reorderDestinationqueue(elevator.destinationQueue));
                elevator.checkDestinationQueue();
                return elevator.destinationQueue.indexOf(floorNum) != -1;
            };
            elevator.tasks = {};
            elevator.on("idle", function() {
                idleElevators.push(elevator);
console.log("idle", idleElevators);
            });
            elevator.on("stopped_at_floor", function(floorNum) {
                delete elevator.tasks[floorNum];
            });
            elevator.on("floor_button_pressed", function(floorNum) {
                elevator.tasks[floorNum] = true;
                elevator.move(floorNum);
            });
        }
        floors.forEach(function (floor) {
            floor.on("up_button_pressed", function() {
                if (idleElevators.length > 0) {
                    idleElevators[0].move(floor.floorNum());
                } else {
                    var i = 0;
                    while (elevators[i] && !elevators[i].move(floor.floorNum())) {
                        i++;
                    }
                }
            })
            floor.on("down_button_pressed", function() {
                if (idleElevators.length > 0) {
                    idleElevators[0].move(floor.floorNum());
                } else {
                    var i = 0;
                    while (elevators[i] && !elevators[i].move(floor.floorNum())) {
                        i++;
                    }
                }
            })
        });
    },
    update: function(dt, elevators, floors) {
        // We normally don't need to do anything here
    }
}