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Playing around with enums in Swift
//: Playground - noun: a place where people can play
import UIKit
enum Day: Int {
case Monday = 0, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
func checkDay() -> String {
switch self.rawValue {
case 0:
return "The day is Monday"
case 1:
return "The day is Tuesday"
case 2:
return "The day is Wednesday"
case 3:
return "The day is Thursday"
case 4:
return "The day is Friday"
case 5:
return "The day is Saturday"
case 6:
return "The day is Sunday"
default:
return "There's only 7 days in a week"
}
}
mutating func next() -> Void {
if let nextDay = Day(rawValue: (self.rawValue + 1)) {
self = nextDay
} else {
self = Day.Monday
}
}
mutating func prev() -> Void {
if let prevDay = Day(rawValue: (self.rawValue - 1)) {
self = prevDay
} else {
self = Day.Sunday
}
}
}
var today = Day.Thursday
today.checkDay()
today.next()
today.checkDay()
today.prev()
today.checkDay()
protocol LivesByDay {
func onThisDay(Day) -> String
}
class Artist {
let topSong: String
let sneakers: String
init(topSong: String, sneakers: String) {
self.topSong = topSong
self.sneakers = sneakers
}
}
class CraigDavid: Artist, LivesByDay {
func onThisDay(day: Day) -> String {
switch day {
case .Monday:
return "Meeting this girl"
case .Tuesday:
return "Taking her for a drink"
case .Wednesday:
return "Making love"
case .Thursday:
return "Making love"
case .Friday:
return "Making love"
case .Saturday:
return "Making love"
case .Sunday:
return "Chilling"
}
}
}
class HardFi: Artist, LivesByDay {
func onThisDay(day: Day) -> String {
switch day.rawValue {
case 4, 5:
return "Going out tonight, going out tonight"
default:
return "Living for the weekend"
}
}
}
class God: LivesByDay {
func onThisDay(day: Day) -> String {
switch day {
case .Monday:
return "Creating the heavens and the earth"
case .Tuesday:
return "Creating the sky"
case .Wednesday:
return "Creating dry land"
case .Thursday:
return "Creating the stars and heavenly bodies"
case .Friday:
return "Creating all that lives in water"
case .Saturday:
return "Creating all that lives on dry land"
case .Sunday:
return "Resting"
}
}
}
let craig = CraigDavid(topSong: "7 days", sneakers: "White")
craig.onThisDay(today)
let hardfi = HardFi(topSong: "Living for the Weekend", sneakers: "Adidas")
hardfi.onThisDay(today)
let jehovah = God()
jehovah.onThisDay(today)
func dailyActivity(var day: Day, person: LivesByDay) {
for _ in 1...7 {
person.onThisDay(day)
day.next()
}
}
dailyActivity(today, jehovah)
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