Add resources.

Add normal and turbo fire to player ship.

space-war.xcodeproj/project.pbxproj

@@ -7,11 +7,13 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		80210A7129E56EC6005FCB32 /* PlayerNormal.atlas in Resources */ = {isa = PBXBuildFile; fileRef = 80210A7029E56EC6005FCB32 /* PlayerNormal.atlas */; };
+		80210A7329E57195005FCB32 /* EnemyTurbo.atlas in Resources */ = {isa = PBXBuildFile; fileRef = 80210A7229E57195005FCB32 /* EnemyTurbo.atlas */; };
 		802C22C229E44A350038841E /* Constants.swift in Sources */ = {isa = PBXBuildFile; fileRef = 802C22C129E44A350038841E /* Constants.swift */; };
 		802C22C529E44A5A0038841E /* Localizable.strings in Resources */ = {isa = PBXBuildFile; fileRef = 802C22C729E44A5A0038841E /* Localizable.strings */; };
 		802C22CA29E44B1E0038841E /* String.swift in Sources */ = {isa = PBXBuildFile; fileRef = 802C22C929E44B1E0038841E /* String.swift */; };
 		802C22CC29E450EF0038841E /* Components.swift in Sources */ = {isa = PBXBuildFile; fileRef = 802C22CB29E450EF0038841E /* Components.swift */; };
-		802DF9EB29E4D1EE003EC66D /* Turbo.atlas in Resources */ = {isa = PBXBuildFile; fileRef = 802DF9EA29E4D1EE003EC66D /* Turbo.atlas */; };
+		802DF9EB29E4D1EE003EC66D /* PlayerTurbo.atlas in Resources */ = {isa = PBXBuildFile; fileRef = 802DF9EA29E4D1EE003EC66D /* PlayerTurbo.atlas */; };
 		809E8EA229E42026001AB601 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 809E8EA129E42026001AB601 /* AppDelegate.swift */; };
 		809E8EAA29E42026001AB601 /* MainViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 809E8EA929E42026001AB601 /* MainViewController.swift */; };
 		809E8EAD29E42026001AB601 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 809E8EAB29E42026001AB601 /* Main.storyboard */; };
@@ -28,12 +30,14 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		80210A7029E56EC6005FCB32 /* PlayerNormal.atlas */ = {isa = PBXFileReference; lastKnownFileType = folder.skatlas; path = PlayerNormal.atlas; sourceTree = "<group>"; };
+		80210A7229E57195005FCB32 /* EnemyTurbo.atlas */ = {isa = PBXFileReference; lastKnownFileType = folder.skatlas; path = EnemyTurbo.atlas; sourceTree = "<group>"; };
 		802C22C129E44A350038841E /* Constants.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Constants.swift; sourceTree = "<group>"; };
 		802C22C629E44A5A0038841E /* en */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = en; path = en.lproj/Localizable.strings; sourceTree = "<group>"; };
 		802C22C829E44A6E0038841E /* es */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = es; path = es.lproj/Localizable.strings; sourceTree = "<group>"; };
 		802C22C929E44B1E0038841E /* String.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = String.swift; sourceTree = "<group>"; };
 		802C22CB29E450EF0038841E /* Components.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Components.swift; sourceTree = "<group>"; };
-		802DF9EA29E4D1EE003EC66D /* Turbo.atlas */ = {isa = PBXFileReference; lastKnownFileType = folder.skatlas; path = Turbo.atlas; sourceTree = "<group>"; };
+		802DF9EA29E4D1EE003EC66D /* PlayerTurbo.atlas */ = {isa = PBXFileReference; lastKnownFileType = folder.skatlas; path = PlayerTurbo.atlas; sourceTree = "<group>"; };
 		809E8E9E29E42026001AB601 /* space-war.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "space-war.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 		809E8EA129E42026001AB601 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		809E8EA929E42026001AB601 /* MainViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainViewController.swift; sourceTree = "<group>"; };
@@ -81,7 +85,9 @@
 		802DF9E929E4D1E5003EC66D /* Textures */ = {
 			isa = PBXGroup;
 			children = (
-				802DF9EA29E4D1EE003EC66D /* Turbo.atlas */,
+				80210A7229E57195005FCB32 /* EnemyTurbo.atlas */,
+				80210A7029E56EC6005FCB32 /* PlayerNormal.atlas */,
+				802DF9EA29E4D1EE003EC66D /* PlayerTurbo.atlas */,
 			);
 			path = Textures;
 			sourceTree = "<group>";
@@ -231,14 +237,16 @@
 				809E8EC229E422E9001AB601 /* start-level.wav in Resources */,
 				809E8EAD29E42026001AB601 /* Main.storyboard in Resources */,
 				809E8EC829E42614001AB601 /* Roboto-Regular.ttf in Resources */,
+				80210A7329E57195005FCB32 /* EnemyTurbo.atlas in Resources */,
 				809E8EAF29E42027001AB601 /* Assets.xcassets in Resources */,
 				809E8EBE29E422CA001AB601 /* short-laser-gun-shot.wav in Resources */,
 				802C22C529E44A5A0038841E /* Localizable.strings in Resources */,
-				802DF9EB29E4D1EE003EC66D /* Turbo.atlas in Resources */,
+				802DF9EB29E4D1EE003EC66D /* PlayerTurbo.atlas in Resources */,
 				809E8EB229E42027001AB601 /* LaunchScreen.storyboard in Resources */,
 				809E8EBF29E422CA001AB601 /* space-game.wav in Resources */,
 				809E8EC329E422E9001AB601 /* menu.wav in Resources */,
 				809E8EC929E42614001AB601 /* Roboto-Thin.ttf in Resources */,
+				80210A7129E56EC6005FCB32 /* PlayerNormal.atlas in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

space-war/Resources/Assets.xcassets/Images/img_enemy.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "img_enemy.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

space-war/Scenes/GameScene.swift

@@ -24,8 +24,10 @@ class GameScene: SKScene {
   private let joystick = SKSpriteNode(imageNamed: "img_joystick")
   private let firePad = SKSpriteNode(imageNamed: "img_joystick")
 
-  private var turbo = SKSpriteNode()
-  private var turboFrames: [SKTexture] = []
+  private var normalPlayer = SKSpriteNode()
+  private var normalPlayerFrames: [SKTexture] = []
+  private var turboPlayer = SKSpriteNode()
+  private var turboPlayerFrames: [SKTexture] = []
   private var selectedNodes: [UITouch: SKSpriteNode] = [:]
   private var velocityX: CGFloat = 0
   private var velocityY: CGFloat = 0
@@ -59,6 +61,12 @@ class GameScene: SKScene {
   override func update(_ currentTime: TimeInterval) {
     if joystickIsActive == true {
       player.position = CGPointMake(player.position.x - (velocityX * 3), player.position.y + (velocityY * 3))
+
+      normalPlayer.isHidden = true
+      turboPlayer.isHidden = false
+    } else {
+      normalPlayer.isHidden = false
+      turboPlayer.isHidden = true
     }
   }
 }
@@ -171,7 +179,8 @@ private extension GameScene {
 
     addChild(player)
 
-    buildShipTurbo()
+    buildNormalPlayerShip()
+    buildTurboPlayerShip()
   }
 
   func createPlayerControls() {
@@ -199,8 +208,36 @@ private extension GameScene {
     addChild(firePad)
   }
 
-  func buildShipTurbo() {
-    let animatedAtlas = SKTextureAtlas(named: "Turbo")
+  func buildNormalPlayerShip() {
+    let animatedAtlas = SKTextureAtlas(named: "PlayerNormal")
+    let numImages = animatedAtlas.textureNames.count
+
+    var frames: [SKTexture] = []
+
+    for i in 1...numImages {
+      let textureName = "normal_\(i)"
+      frames.append(animatedAtlas.textureNamed(textureName))
+    }
+    normalPlayerFrames = frames
+
+    let firstFrameTexture = normalPlayerFrames[0]
+    normalPlayer = SKSpriteNode(texture: firstFrameTexture)
+    normalPlayer.position = CGPoint(x: -55.0, y: 0.0)
+
+    player.addChild(normalPlayer)
+
+    normalPlayer.run(SKAction.repeatForever(
+      SKAction.animate(with: normalPlayerFrames,
+                       timePerFrame: 0.1,
+                       resize: false,
+                       restore: true)),
+                     withKey: "normalPlayer")
+
+    normalPlayer.isHidden = false
+  }
+
+  func buildTurboPlayerShip() {
+    let animatedAtlas = SKTextureAtlas(named: "PlayerTurbo")
     let numImages = animatedAtlas.textureNames.count
 
     var frames: [SKTexture] = []
@@ -209,20 +246,22 @@ private extension GameScene {
       let textureName = "turbo_\(i)"
       frames.append(animatedAtlas.textureNamed(textureName))
     }
-    turboFrames = frames
+    turboPlayerFrames = frames
 
-    let firstFrameTexture = turboFrames[0]
-    turbo = SKSpriteNode(texture: firstFrameTexture)
-    turbo.position = CGPoint(x: -50.0, y: 0.0)
+    let firstFrameTexture = turboPlayerFrames[0]
+    turboPlayer = SKSpriteNode(texture: firstFrameTexture)
+    turboPlayer.position = CGPoint(x: -65.0, y: 0.0)
 
-    player.addChild(turbo)
+    player.addChild(turboPlayer)
 
-    turbo.run(SKAction.repeatForever(
-      SKAction.animate(with: turboFrames,
+    turboPlayer.run(SKAction.repeatForever(
+      SKAction.animate(with: turboPlayerFrames,
                        timePerFrame: 0.1,
                        resize: false,
                        restore: true)),
-              withKey: "turbo")
+                    withKey: "playerTurbo")
+
+    turboPlayer.isHidden = true
   }
 
   func playerShoot(in touchLocation: CGPoint) {