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Swift Polymorphism Tutorial LionCubs
//
// ViewController.swift
// LionsAndTigers
//
// Created by Timothy Jacobs on 10/18/14.
// Copyright (c) 2014 Iron Bound Designs. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
// background image
@IBOutlet weak var myImageView: UIImageView!
// labels
@IBOutlet weak var nameLabel: UILabel!
@IBOutlet weak var ageLabel: UILabel!
@IBOutlet weak var breedLabel: UILabel!
@IBOutlet weak var factLabel: UILabel!
// holds the tigers in this project
var tigers:[Tiger] = []
// hold the lions in this project
var lions:[Lion] = []
var currentAnimal = (species: "Tiger", index: 0)
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
var firstTiger = Tiger(age: 3, name: "Tigger", breed: "Bengal",
image: UIImage(named: "BengalTiger.jpg")!)
var secondTiger = Tiger(age: 2, name: "Tigress", breed: "Indochinese Tiger",
image: UIImage(named: "IndochineseTiger.jpg")!)
var thirdTiger = Tiger(age: 4, name: "Jacob", breed: "Malayan Tiger",
image: UIImage(named: "MalayanTiger.jpg")!)
var fourthTiger = Tiger(age: 5, name: "Spar", breed: "Siberian Tiger",
image: UIImage(named: "SiberianTiger.jpg")!)
tigers += [firstTiger, secondTiger, thirdTiger, fourthTiger]
loadTigerToView(firstTiger)
var lion = Lion(age: 4, isAlphaMale: true,
image: UIImage(named: "Lion.jpg")!,
name: "Mufasa", subspecies: "West African")
var lioness = Lion(age: 3, isAlphaMale: false,
image: UIImage(named: "Lioness.jpeg")!,
name: "Sarabi", subspecies: "Barbary")
lions += [lion, lioness]
var lionCub1 = LionCub(age: 1, isAlphaMale: true,
image: UIImage(named: "LionCub1.jpg")!,
name: "Simba", subspecies: "Masai")
var lionCub2 = LionCub(age: 1, isAlphaMale: false,
image: UIImage(named:"LionCub2.jpeg")!,
name: "Nala", subspecies: "Transvaal")
lions += [lionCub1, lionCub2]
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func nextBarButtonItemPressed(sender: UIBarButtonItem) {
// advance to the next animal, switching between lions, and tigers
updateAnimal()
updateView()
}
private func updateAnimal() {
// switch species, then grab a random animal of that species
switch currentAnimal {
case ("Tiger", _):
let randIndex = Int(arc4random_uniform(UInt32(lions.count)))
currentAnimal = ("Lion", randIndex)
default:
let randIndex = Int(arc4random_uniform(UInt32(tigers.count)))
currentAnimal = ("Tiger", randIndex)
}
}
private func updateView() {
if currentAnimal.species == "Tiger" {
loadTigerToView(tigers[currentAnimal.index])
} else if currentAnimal.species == "Lion" {
loadLionToView(lions[currentAnimal.index])
}
}
private func loadTigerToView(tiger: Tiger) {
// display a tiger's info on the screen
UIView.transitionWithView(self.view, duration: 2,
options: UIViewAnimationOptions.TransitionCrossDissolve,
animations: {
self.myImageView.image = tiger.image
self.nameLabel.text = tiger.name
self.ageLabel.text = "\(tiger.age)"
self.breedLabel.text = tiger.breed
self.factLabel.text = tiger.randomFact()
}, completion: {
(finished: Bool) -> () in
})
}
private func loadLionToView(lion: Lion) {
// display a lion's info on the screen
UIView.transitionWithView(self.view, duration: 2,
options: UIViewAnimationOptions.TransitionCrossDissolve,
animations: {
self.myImageView.image = lion.image
self.nameLabel.text = lion.name
self.ageLabel.text = "\(lion.age)"
self.breedLabel.text = lion.subspecies
self.factLabel.text = lion.randomFact()
}, completion: {
(finished: Bool) -> () in
})
}
}
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