Factory pattern

gistfile1.txt

// Product and Concrete Product
protocol Adventurer {
    func getType() -> String
}

class Archer: Adventurer {
    func getType() -> String {
        print("I'm an archer")
        return String(describing: Archer.self)
    }
}

class Warrior: Adventurer {
    func getType() -> String {
        print("I'm a warrior")
        return String(describing: Warrior.self)
    }
}

// Factory and Concrete Factory
protocol TrainingCamp {
    func trainAdventurer() -> Adventurer
}

class ArcherTrainingCamp: TrainingCamp {
    func trainAdventurer() -> Adventurer {
        print("Train an archer")
        return Archer()
    }
}

class WarriorTrainingCamp: TrainingCamp {
    func trainAdventurer() -> Adventurer {
        print("Train an warrior")
        return Warrior()
    }
}
let archer = ArcherTrainingCamp().trainAdventurer()
let warrior = WarriorTrainingCamp().trainAdventurer()

// Testing code
assert(archer is Archer, "Didn't get the archer object!!")
assert(warrior is Warrior, "Didn't get the warrior object!!")