SuperHero Swift / Just tinkering

SuperHero.playground

//: Playground - noun: a place where people can play
//: Created By: Jashua Covington 4/11/2016
import UIKit

public class SuperHero {
    
    public let name: String
    var birthYear: Int
    var solo: String
    var groupName: String
    
    private var sneakersField = "Not Specified"
    
    internal var sneakers: String {
        get{
            return sneakersField
        }
        set {
            sneakersField = newValue.uppercased()
            
        }
        
    }
    
    
    var age: Int {
        
        get{
            let date = NSDate()
            let calendar = NSCalendar.current
            let components = calendar.components([.Day, .Month, .Year], fromDate: date)
            
            
            
            return components.year - birthYear
        }
        set {
            let date = NSDate()
            let calendar = NSCalendar.current
            let components = calendar.components([.Year], fromDate: date)
            
            self.birthYear = components.year - newValue
        
        }
    }
    
        public var runningSpeedScore: Int {
          willSet {
             print("The current value for running speed score is:\(runningSpeedScore)")
             print("I will set the new value for the running Speed Score to: \(newValue)")
            }
          didSet {
             print("I have set the new value for running speed score to: \(runningSpeedScore)")
        }
        
    }
        init(name: String, birthYear: Int, solo: String, groupName: String, sneakers: String, runningSpeedScore: Int) {
        self.name = name
        self.birthYear = birthYear
        self.solo = solo
        self.groupName = groupName
        self.runningSpeedScore = runningSpeedScore
        self.sneakers = sneakers
        
   }
}

var antMan = SuperHero(name: "Ant-Man", birthYear: 1975, solo: "stand-alone/member", groupName: "Avengers", sneakers: "Running", runningSpeedScore: 20)
print(antMan.name)
print(antMan.birthYear)
print(antMan.age)
print(antMan.solo)
print(antMan.groupName)
print(antMan.runningSpeedScore)
print(antMan.sneakers)

var spiderMan = SuperHero(name: "Spider-Man", birthYear: 1981, solo: "stand-alone/Cross-Over", groupName: "Avengers, X-Men, Fantastic Four", sneakers: "Jumping", runningSpeedScore: 21)
print(spiderMan.name)
print(spiderMan.birthYear)
print(spiderMan.age)
print(spiderMan.solo)
print(spiderMan.groupName)
print(spiderMan.runningSpeedScore)
print(spiderMan.sneakers)

var popEye = SuperHero(name: "PopEye", birthYear: 1972, solo: "stand-Alone", groupName: "N/A", sneakers: "Running", runningSpeedScore: 8)
print(popEye.name)
print(popEye.birthYear)
print(popEye.age)
print(popEye.solo)
print(popEye.runningSpeedScore)
print(popEye.groupName)
print(popEye.sneakers)

var silverSurfer = SuperHero(name: "SilverSurfer", birthYear: 2362, solo: "stand-alone/Cross-Over", groupName: "Avengers, X-Men, Fantastic Four", sneakers: "Air Surfing", runningSpeedScore: 30)
print(silverSurfer.name)
print(silverSurfer.birthYear)
print(silverSurfer.age)
print(silverSurfer.solo)
print(silverSurfer.groupName)
print(silverSurfer.runningSpeedScore)
print(silverSurfer.sneakers)


antMan.age = 33
print(antMan.age)
print(antMan.birthYear)

spiderMan.age = 22
print(spiderMan.age)
print(spiderMan.birthYear)

popEye.age = 47
print(popEye.age)
print(popEye.birthYear)

silverSurfer.age = 16
print(silverSurfer.age)
print(silverSurfer.birthYear)