0001    import Foundation
0002    
0003    /// 🚲 A two-wheeled, human-powered mode of transportation.
0004    public class Bicycle {
0005        /**
0006        Frame and construction style.
0007    
0008        - Road: For streets or trails.
0009        - Touring: For long journeys.
0010        - Cruiser: For casual trips around town.
0011        - Hybrid: For general-purpose transportation.
0012        */
0013        public enum Style
Bicycle.swift:41
    let style: Style
Bicycle.swift:68
    init(style: Style, gearing: Gearing, handlebar: Handlebar, frameSize centimeters: Int) {
 {
0014            case Road, Touring, Cruiser, Hybrid
0015        }
0016    
0017        /**
0018        Mechanism for converting pedal power into motion.
0019    
0020        - Fixed: A single, fixed gear.
0021        - Freewheel: A variable-speed, disengageable gear.
0022        */
0023        public enum Gearing
Bicycle.swift:44
    let gearing: Gearing
Bicycle.swift:68
    init(style: Style, gearing: Gearing, handlebar: Handlebar, frameSize centimeters: Int) {
 {
0024            case Fixed
0025            case Freewheel(speeds: Int)
0026        }
0027    
0028        /**
0029        Hardware used for steering.
0030    
0031        - Riser: A casual handlebar.
0032        - Café: An upright handlebar.
0033        - Drop: A classic handlebar.
0034        - Bullhorn: A powerful handlebar.
0035        */
0036        enum Handlebar
Bicycle.swift:47
    let handlebar: Handlebar
Bicycle.swift:68
    init(style: Style, gearing: Gearing, handlebar: Handlebar, frameSize centimeters: Int) {
 {
0037            case Riser, Café, Drop, Bullhorn
0038        }
0039    
0040        /// The style of the bicycle.
0041        let style
Bicycle.swift:69
        self.style = style
: Style
0042    
0043        /// The gearing of the bicycle.
0044        let gearing
Bicycle.swift:70
        self.gearing = gearing
: Gearing
0045    
0046        /// The handlebar of the bicycle.
0047        let handlebar
Bicycle.swift:71
        self.handlebar = handlebar
: Handlebar
0048    
0049        /// The size of the frame, in centimeters.
0050        let frameSize
Bicycle.swift:72
        self.frameSize = centimeters
: Int
0051    
0052        /// The number of trips travelled by the bicycle.
0053        private(set) var numberOfTrips
Bicycle.swift:74
        numberOfTrips = 0
Bicycle.swift:86
            numberOfTrips += 1
: Int
0054    
0055        /// The total distance travelled by the bicycle, in meters.
0056        private(set) var distanceTravelled
Bicycle.swift:75
        distanceTravelled = 0
Bicycle.swift:85
            distanceTravelled += meters
: Double
0057    
0058        /**
0059        Initializes a new bicycle with the provided parts and specifications.
0060    
0061        - parameter style: The style of the bicycle
0062        - parameter gearing: The gearing of the bicycle
0063        - parameter handlebar: The handlebar of the bicycle
0064        - parameter centimeters: The frame size of the bicycle, in centimeters
0065    
0066        - returns: A beautiful, brand-new, custom built just for you.
0067        */
0068        init(style: Style, gearing: Gearing, handlebar: Handlebar, frameSize centimeters: Int) {
0069            self.style = style
0070            self.gearing = gearing
0071            self.handlebar = handlebar
0072            self.frameSize = centimeters
0073    
0074            numberOfTrips = 0
0075            distanceTravelled = 0
0076        }
0077    
0078        /**
0079        Take a bike out for a spin.
0080    
0081        - parameter meters: The distance to travel in meters.
0082        */
0083        func travel(distance meters: Double) {
0084            if meters > 0.0 {
0085                distanceTravelled += meters
0086                numberOfTrips += 1
0087            }
0088        }
0089    }
0090