factory-pattern-swift.swift

//: Playground - noun: a place where people can play

import UIKit

protocol Human {
    var name : String {get set}
    
    func run()
    func eat()
    func sleep()
}

class Soldier : Human{
    var name: String
    
    init(SoldierName soldiername : String) {
        self.name = soldiername
    }
    
    func run() {
        print("soldier \(name) is running")
    }
    
    func eat() {
        print("soldider  \(name) is eating")
    }
    
    func sleep() {
        print("soldider  \(name) is sleeping")
    }
}

class Civilian : Human {
    var name: String
    
    init(CivilianName civilianName : String) {
        self.name = civilianName
    }
    
    func run() {
        print("\(name) is running")
    }
    
    func eat() {
        print("\(name) is eating")
    }
    
    func sleep() {
        print("\(name) is sleeping")
    }
}

enum HumanTypes{
    case Soldier
    case Civilian
}

class HumanFactory{
    private static var sharedHumanFactory = HumanFactory()
    
    class func shared() -> HumanFactory {
        return sharedHumanFactory
    }
    
    func getHuman(HumanType humanType : HumanTypes, HumanName humanName : String)->Human{
        switch humanType {
        case .Soldier:
            return Soldier(SoldierName: humanName)
        case .Civilian:
            return Civilian(CivilianName: humanName)
        }
    }
}

let soldier = HumanFactory.shared().getHuman(HumanType: .Soldier, HumanName: "Jay")
soldier.sleep()

let civilian = HumanFactory.shared().getHuman(HumanType: .Civilian, HumanName: "Saman")
civilian.run()