vehicle.js

function VehicleConstructor(name) {
    var vehicle = {};

    //Properties
    vehicle.name = name;
    vehicle.milesTravelled = 0;
    vehicle.maxPassengers = 0;
    vehicle.currentPassengers = 0;

    // Default Assignments
    switch (vehicle.name) {
        case "bike":
            vehicle.maxPassengers = 1;
            break;

        case "sedan":
            vehicle.maxPassengers = 4;
            break;

        case "bus":
            vehicle.maxPassengers = 20;
            break;
    }

    //Methods
    vehicle.move = function (avgSpeedMph, forTimeHours) {
        vehicle.milesTravelled += avgSpeedMph * forTimeHours;

        return vehicle.milesTravelled;
    }

    vehicle.makeNoise = function() {
        switch (vehicle.name) {
            case "bike":
                return "ring ring";
                break;

            case null:
                return "No object, no noise";
                break;

            default:
                return "honk honk";
                break;
        }
    }

    vehicle.checkMiles = function() {
        return vehicle.milesTravelled;
    }

    vehicle.pickUpPassengers = function(){
        if (vehicle.currentPassengers >= vehicle.maxPassengers) {
            console.log("You can't carry anymore!");
            return false;
        }

        vehicle.currentPassengers++;

        return vehicle.currentPassengers;
    }

    return vehicle;
}