functionality for positioning cards and using view-controller containment

37-watchkit-game-esp-tester/ESP Tester/ESP Tester.xcodeproj/project.pbxproj

@@ -22,6 +22,8 @@
 		F3857EB8222E4D27009A33C4 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = F3857EB2222E4D27009A33C4 /* AppDelegate.swift */; };
 		F3857EBC222E517E009A33C4 /* PhantomFromSpace.mp3 in Resources */ = {isa = PBXBuildFile; fileRef = F3857EBA222E517E009A33C4 /* PhantomFromSpace.mp3 */; };
 		F3857EBD222E517E009A33C4 /* README.txt in Resources */ = {isa = PBXBuildFile; fileRef = F3857EBB222E517E009A33C4 /* README.txt */; };
+		F3857EBF222E5BEB009A33C4 /* CardViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = F3857EBE222E5BEB009A33C4 /* CardViewController.swift */; };
+		F3857EC1222E5DD9009A33C4 /* Dimension.swift in Sources */ = {isa = PBXBuildFile; fileRef = F3857EC0222E5DD9009A33C4 /* Dimension.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -86,6 +88,8 @@
 		F3857EB2222E4D27009A33C4 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		F3857EBA222E517E009A33C4 /* PhantomFromSpace.mp3 */ = {isa = PBXFileReference; lastKnownFileType = audio.mp3; path = PhantomFromSpace.mp3; sourceTree = "<group>"; };
 		F3857EBB222E517E009A33C4 /* README.txt */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = README.txt; sourceTree = "<group>"; };
+		F3857EBE222E5BEB009A33C4 /* CardViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CardViewController.swift; sourceTree = "<group>"; };
+		F3857EC0222E5DD9009A33C4 /* Dimension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Dimension.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -163,6 +167,7 @@
 			isa = PBXGroup;
 			children = (
 				F3857EA9222E4D27009A33C4 /* Info.plist */,
+				F3857EC0222E5DD9009A33C4 /* Dimension.swift */,
 			);
 			path = "Supporting Files";
 			sourceTree = "<group>";
@@ -180,6 +185,7 @@
 			children = (
 				F3857EAC222E4D27009A33C4 /* HomeViewController.swift */,
 				F3857EAD222E4D27009A33C4 /* Home.storyboard */,
+				F3857EBE222E5BEB009A33C4 /* CardViewController.swift */,
 			);
 			path = Home;
 			sourceTree = "<group>";
@@ -347,8 +353,10 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				F3857EC1222E5DD9009A33C4 /* Dimension.swift in Sources */,
 				F3857EB8222E4D27009A33C4 /* AppDelegate.swift in Sources */,
 				F3857EB4222E4D27009A33C4 /* HomeViewController.swift in Sources */,
+				F3857EBF222E5BEB009A33C4 /* CardViewController.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

37-watchkit-game-esp-tester/ESP Tester/ESP Tester/Controllers/Home/CardViewController.swift

@@ -0,0 +1,79 @@
+//
+//  CardViewController.swift
+//  ESP Tester
+//
+//  Created by Brian Sipple on 3/5/19.
+//  Copyright © 2019 Brian Sipple. All rights reserved.
+//
+
+import UIKit
+
+class CardViewController: UIViewController {
+    // MARK: - Instance Properties
+    
+    weak var delegate: UIViewController!
+    
+    lazy var frontImageView = makeFrontImageView()
+    lazy var backImageView = makeBackImageView()
+    
+    var isCorrect = false
+    
+    
+    // MARK: - Lifecycle
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        // Do any additional setup after loading the view.
+        view.bounds = CGRect(x: 0, y: 0, width: Dimension.Card.width, height: Dimension.Card.height)
+        
+        view.addSubview(frontImageView)
+        view.addSubview(backImageView)
+        
+        UIView.animate(withDuration: 0.2, animations: { [weak self] in
+            self?.backImageView.alpha = 1
+        })
+    }
+    
+
+    /*
+    // MARK: - Navigation
+
+    // In a storyboard-based application, you will often want to do a little preparation before navigation
+    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
+        // Get the new view controller using segue.destination.
+        // Pass the selected object to the new view controller.
+    }
+    */
+    
+    
+    // MARK: - Private functions
+    
+    private func makeFrontImageView() -> UIImageView {
+        let imageView = makeCardImageView()
+        
+        imageView.isHidden = true
+        
+        return imageView
+    }
+    
+    
+    private func makeBackImageView() -> UIImageView {
+        let imageView = makeCardImageView()
+        
+        imageView.alpha = 0
+        
+        return imageView
+    }
+
+    
+    private func makeCardImageView() -> UIImageView {
+        guard let image = UIImage(named: "cardBack") else {
+            fatalError("Failed to load card image assets")
+        }
+        
+        let imageView = UIImageView(image: image)
+        
+        return imageView
+    }
+}

37-watchkit-game-esp-tester/ESP Tester/ESP Tester/Controllers/Home/Home.storyboard

@@ -18,9 +18,9 @@
                         <rect key="frame" x="0.0" y="0.0" width="896" height="414"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
-                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="AyX-vP-N69">
+                            <view autoresizesSubviews="NO" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="AyX-vP-N69">
                                 <rect key="frame" x="208" y="47" width="480" height="320"/>
-                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                 <constraints>
                                     <constraint firstAttribute="width" constant="480" id="2eA-y0-2Fv"/>
                                     <constraint firstAttribute="height" constant="320" id="tf9-2o-Gez"/>
@@ -34,6 +34,9 @@
                         </constraints>
                         <viewLayoutGuide key="safeArea" id="Uee-0j-aNJ"/>
                     </view>
+                    <connections>
+                        <outlet property="cardContainer" destination="AyX-vP-N69" id="QJh-gr-bcX"/>
+                    </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
             </objects>

37-watchkit-game-esp-tester/ESP Tester/ESP Tester/Controllers/Home/HomeViewController.swift

@@ -9,12 +9,100 @@
 import UIKit
 
 class HomeViewController: UIViewController {
+    @IBOutlet var cardContainer: UIView!
+    
+    // MARK: - Instance Properties
+    
+    var cardViewControllers: [CardViewController] = []
+    
+    lazy var cardPositions = makeCardPositions()
+    lazy var cardImages = makeCardImages()
+    
+    
+    // MARK: - Lifecycle
     
     override func viewDidLoad() {
         super.viewDidLoad()
         // Do any additional setup after loading the view, typically from a nib.
+        
+        loadCards()
     }
     
     
+    // MARK: - Methods
+    
+    @objc func loadCards() {
+        removeCardsInView()
+        cardImages.shuffle()
+        
+        for (index, position) in cardPositions.enumerated() {
+            let cardViewController = CardViewController()
+            let cardImage = cardImages[index]
+            
+            cardViewController.delegate = self
+            
+            // use view controller containment...
+            addChild(cardViewController)
+            
+            // ...AND add the VC's view to our container view
+            cardContainer.addSubview(cardViewController.view)
+            cardViewController.didMove(toParent: self)
+            
+            cardViewController.view.center = position
+            cardViewController.frontImageView.image = cardImage
+            
+            // if the new card is a star, mark is as "correct"
+            if cardImage.accessibilityIdentifier == "star" {
+                cardViewController.isCorrect = true
+            }
+            
+            cardViewControllers.append(cardViewController)
+        }
+    }
+    
+    func removeCardsInView() {
+        for card in cardViewControllers {
+            card.view.removeFromSuperview()
+            card.removeFromParent()
+        }
+        
+        cardViewControllers.removeAll(keepingCapacity: true)
+    }
+    
+    // MARK: - Private functions
+    
+    private func makeCardPositions() -> [CGPoint] {
+        let cardWidth = Dimension.Card.width
+        let cardHeight = Dimension.Card.height
+        let xSpacing = 10
+        let ySpacing = 10
+        
+        var positions: [CGPoint] = []
+        
+        for row in 0...1 {
+            let yPos = (cardHeight / 2) + (cardHeight * row) + (ySpacing * row) + 15
+            
+            positions += [
+                CGPoint(x: (cardWidth / 2) + (cardWidth * 0) + (xSpacing * 1) + 15, y: yPos),
+                CGPoint(x: (cardWidth / 2) + (cardWidth * 1) + (xSpacing * 2) + 15, y: yPos),
+                CGPoint(x: (cardWidth / 2) + (cardWidth * 2) + (xSpacing * 3) + 15, y: yPos),
+                CGPoint(x: (cardWidth / 2) + (cardWidth * 3) + (xSpacing * 4) + 15, y: yPos),
+            ]
+        }
+        
+        return positions
+    }
+    
+    
+    private func makeCardImages() -> [UIImage] {
+        return [
+            "Circle", "Circle", "Cross", "Cross", "Lines", "Lines", "Square", "Star"
+        ].map {
+            let image = UIImage(named: "card\($0)")!
+            image.accessibilityIdentifier = $0
+            
+            return image
+        }
+    }
 }
 

37-watchkit-game-esp-tester/ESP Tester/ESP Tester/Supporting Files/Dimension.swift

@@ -0,0 +1,22 @@
+//
+//  Dimension.swift
+//  ESP Tester
+//
+//  Created by Brian Sipple on 3/5/19.
+//  Copyright © 2019 Brian Sipple. All rights reserved.
+//
+
+import Foundation
+
+
+enum Dimension {
+    enum MainView {
+        static let width = 480
+        static let height = 320
+    }
+    
+    enum Card {
+        static let width = 100
+        static let height = 140
+    }
+}

README.md

@@ -60,7 +60,7 @@
 | 34   | 🎮<br>[Four in a Row](/34-gamekit-four-in-a-row)            | GameplayKit AI, GKGameModel, GKGameModelPlayer, GKGameModelUpdate, AI Heuristics, NSCopying, GKMinmaxStrategist | ✅ |
 | 35   | 🛠<br>[Random Numbers](/35-random-numbers)           | Int.random(in:), Float.random(in:), Double.random(in:), CGFloat.random(in:), Bool.random(), arc4random(), GKRandomSource.sharedRandom(), GKLinearCongruentialRandomSource, GKMersenneTwisterRandomSource, GKARC4RandomSource, GKRandomDistribution, GKShuffledDistribution, GKGaussianDistribution, Fisher-Yates Algorithm, arrayByShufflingObjects(in:), the importance of being able to seed the source of randomness 🌱| ✅ |
 | 36   | 🎮<br>[Crashy Plane](/36-crashy-plane)             | scale modes, parallax scrolling, SpriteKit Physics, SKPhysicsContactDelegate, SKPhysicsBody, SKAudioNode, managing game state with enums, restarting entire game scenes  | ✅ |
-| 37   | 🎮<br>[Psychic Tester](/37-psychic-tester)           | WatchKit Extensions, 3D Touch, CAEmitterLayer, CAGradientLayer, @IBDesignable, @IBInspectable, transition(with:), WCSession, WKInterfaceLabel, WKInterfaceButton | 🚧 |
+| 37   | 🎮<br>[WatchKit ESP Tester](/37-watchkit-game-esp-tester)           | View Controller containment, WatchKit Extensions, 3D Touch, CAEmitterLayer, CAGradientLayer, @IBDesignable, @IBInspectable, transition(with:), WCSession, WKInterfaceLabel, WKInterfaceButton | 🚧 |
 | 38   | 🛠<br>[Github Commits (Core Data)](/38-githubcommits) | NSFetchRequest, NSManagedObject, NSPredicate, NSSortDescriptor, NSFetchedResultsController, ISO8601DateFormatter | 🔴 |
 | 39   | 🛠<br>[Unit testing with XCTest](/39-swift-unit-tests) | XCTest, `filter()`, Test-Driven Development, Functional Programming, XCTestCase, Setting a Baseline, NSCountedSet, XCUIApplication(), XCUIElementQuery, UI Test Recording | 🔴 |