Convert to Swift 4, 'pod update', fix compile issues

.travis.yml

@@ -2,13 +2,13 @@
 # * http://www.objc.io/issue-6/travis-ci.html
 # * https://github.com/supermarin/xcpretty#usage
 
-osx_image: xcode7.3
+osx_image: xcode9.4
 language: objective-c
 # cache: cocoapods
 # podfile: Example/Podfile
 # before_install:
 # - gem install cocoapods # Since Travis is not always on latest version
 # - pod install --project-directory=Example
 script:
-- set -o pipefail && xcodebuild test -workspace Example/MLKit.xcworkspace -scheme MLKit-Example -sdk iphonesimulator9.3 ONLY_ACTIVE_ARCH=NO | xcpretty
+- set -o pipefail && xcodebuild test -workspace Example/MLKit.xcworkspace -scheme MLKit-Example -sdk iphonesimulator11.4 ONLY_ACTIVE_ARCH=NO | xcpretty
 - pod lib lint

Example/MLKit.xcodeproj/xcshareddata/xcschemes/MLKit-Example.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0820"
+   LastUpgradeVersion = "0940"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Example/MLKit.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

Example/MLKit/GameScene.swift

@@ -310,10 +310,10 @@ class GameScene: SKScene, SKPhysicsContactDelegate {
 
             if bird.fitness >= 9.0 {
                 print("FOUND RARE BIRD")
-                print(bird.brain?.layers[0].weights)
-                print(bird.brain?.layers[1].weights)
-                print(bird.brain?.layers[0].bias)
-                print(bird.brain?.layers[1].bias)
+                print(bird.brain?.layers[0].weights as Any)
+                print(bird.brain?.layers[1].weights as Any)
+                print(bird.brain?.layers[0].bias as Any)
+                print(bird.brain?.layers[1].bias as Any)
             }
         }
 
@@ -396,7 +396,7 @@ class GameScene: SKScene, SKPhysicsContactDelegate {
                 if generation.count > currentFlappy {
                     currentBird = generation[currentFlappy]
                 } else {
-                    if let bestBird = maxBird {
+                    if maxBird != nil {
                         currentBird = maxBird
                     }
                 }
@@ -549,7 +549,7 @@ class GameScene: SKScene, SKPhysicsContactDelegate {
                 moving.speed = 0
 
                 bird.physicsBody?.collisionBitMask = worldCategory
-                bird.run(  SKAction.rotate(byAngle: CGFloat(M_PI) * CGFloat(bird.position.y) * 0.01, duration:1), completion: {self.bird.speed = 0 })
+                bird.run(  SKAction.rotate(byAngle: CGFloat.pi * CGFloat(bird.position.y) * 0.01, duration:1), completion: {self.bird.speed = 0 })
 
                 // Flash background if contact is detected
                 self.removeAction(forKey: "flash")
@@ -587,7 +587,7 @@ class GameScene: SKScene, SKPhysicsContactDelegate {
                 moving.speed = 0
 
                 bird.physicsBody?.collisionBitMask = worldCategory
-                bird.run(  SKAction.rotate(byAngle: CGFloat(M_PI) * CGFloat(bird.position.y) * 0.01, duration:1), completion: {self.bird.speed = 0 })
+                bird.run(  SKAction.rotate(byAngle: CGFloat.pi * CGFloat(bird.position.y) * 0.01, duration:1), completion: {self.bird.speed = 0 })
 
                 // Flash background if contact is detected
                 self.removeAction(forKey: "flash")

Example/MLKit/Images.xcassets/AppIcon.appiconset/Contents.json

@@ -39,6 +39,11 @@
       "idiom" : "iphone",
       "size" : "60x60",
       "scale" : "3x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
     }
   ],
   "info" : {

Example/Podfile

@@ -13,7 +13,7 @@ target 'MLKit_Example' do
   post_install do |installer|
       installer.pods_project.targets.each do |target|
           target.build_configurations.each do |config|
-              config.build_settings['SWIFT_VERSION'] = '3.0'
+              config.build_settings['SWIFT_VERSION'] = '4.0'
           end
       end
   end

Example/Podfile.lock

@@ -1,26 +1,32 @@
 PODS:
-  - MachineLearningKit (0.1.7):
+  - MachineLearningKit (0.1.8):
     - Upsurge
-  - Nimble (6.0.1)
-  - Quick (1.1.0)
-  - Upsurge (0.8.0)
+  - Nimble (7.1.3)
+  - Quick (1.3.1)
+  - Upsurge (0.10.2)
 
 DEPENDENCIES:
   - MachineLearningKit (from `../`)
   - Nimble
   - Quick
   - Upsurge
 
+SPEC REPOS:
+  https://github.com/cocoapods/specs.git:
+    - Nimble
+    - Quick
+    - Upsurge
+
 EXTERNAL SOURCES:
   MachineLearningKit:
-    :path: ../
+    :path: "../"
 
 SPEC CHECKSUMS:
-  MachineLearningKit: 040457b6d6afce606454c16008b954f3952a0d32
-  Nimble: 1527fd1bd2b4cf0636251a36bc8ab37e81da8347
-  Quick: dafc587e21eed9f4cab3249b9f9015b0b7a7f71d
-  Upsurge: 614412863a3b5470b31636a004654b6ef3a34f47
+  MachineLearningKit: 24cf37aed754e3fab2b5c0c823e3e82a0063f905
+  Nimble: 2839b01d1b31f6a6a7777a221f0d91cf52e8e27b
+  Quick: d17304d58d0d169dd0bd1c6e5c28e3318de32a1a
+  Upsurge: 5866beadc3da27f91c5df4ac795deb3f3238d678
 
-PODFILE CHECKSUM: 6efa57e13fa4fabb331b61a3a84a43c047bb3113
+PODFILE CHECKSUM: 6f086d02cdc4ed10abc56279cba6e00448c35830
 
-COCOAPODS: 1.2.0
+COCOAPODS: 1.5.3