Complete Day 56: Project 14: Whack-a-Penguin, Part Two

Author: CypherPoet

README.md

@@ -71,3 +71,4 @@ Feedback and suggestions are highly appreciated. I'll be opening up [issues](htt
 - [Day 53: _Project 13: Instafilter_, Part Two](/day-053)
 - [Day 54: _Project 13: Instafilter_, Part Three](/day-054)
 - [Day 55: _Project 14: Whack-a-Penguin_, Part One](/day-055)
+- [Day 56: _Project 14: Whack-a-Penguin_, Part Two](/day-056)

day-056/README.md

@@ -0,0 +1,96 @@
+# Day 56: _Project 14: Whack-a-Penguin_, Part Two
+
+_Follow along at https://www.hackingwithswift.com/100/56_.
+
+
+
+## 📒 Field Notes
+
+> This day covers the second and final part of `Project 14: Whack-a-Penguin` in _[Hacking with Swift](https://www.hackingwithswift.com/read/14)_.
+>
+> I previously created projects alongside _Hacking with Swift_ in a [separate repository](https://github.com/CypherPoet/book--hacking-with-swift), and you can find Project 14 [here](https://github.com/CypherPoet/book--hacking-with-swift/tree/master/14-whack-a-penguin/Whack%20a%20Penguin). Even better, though, I copied it over to Day 55's folder so I could extend it for _100 Days of Swift_.
+>
+> With that in mind, Day 56 focuses on several specific topics:
+>
+> - SKAction sequences
+> - Wrapping up and extending the project with a set of challenges
+
+
+### SKAction Sequences
+
+I alluded to it in [Day 55] when I was highlighting the way I created an `SKAction` _group_ for hiding a penguin in a slot...
+
+
+```swift
+extension WhackSlot {
+
+    var showAction: SKAction {
+        return SKAction.moveBy(x: 0, y: 80, duration: 0.05)
+    }
+
+    var hideActions: SKAction {
+        return SKAction.group([
+            SKAction.moveBy(x: 0, y: -80, duration: 0.05),
+            SKAction.scale(to: 0.08, duration: 0.025),
+            SKAction.run { [weak self] in
+                self?.isShowingPenguin = false
+            },
+        ])
+    }
+}
+```
+
+... but `SKAction` _sequences_ allow us to take that composability even further. With `SKAction.sequence`, we can declare SKActions to be run **one after another**, and since an `SKAction.group` is, itself, an `SKAction`, we can run sequences with groups without skipping a beat:
+
+```swift
+func whack() {
+    guard isShowingPenguin && !isWhacked else { return }
+
+    isWhacked = true
+
+    let delay = SKAction.wait(forDuration: 0.25)
+
+    penguinNode.run(SKAction.sequence([delay, hideActions]))
+}
+```
+
+
+## 🥅 Challenges
+
+
+### Challenge 1
+
+> Record your own voice saying "Game over!" and have it play when the game ends.
+
+- 🔗 [Commit](https://github.com/CypherPoet/100-days-of-swift/commit/69b6338a9403475f1e149c018c4ff309cb3736e9)
+
+
+### Challenge 2
+
+> When showing “Game Over” add an SKLabelNode showing the user's final score.
+
+- 🔗 [Commit](https://github.com/CypherPoet/100-days-of-swift/commit/1aaf99543ae43583ed7fe77bbed884cefee0b721)
+
+
+### Challenge 3
+
+> Use SKEmitterNode to create a smoke-like effect when penguins are hit, and a separate mud-like effect when they go into or come out of a hole.
+
+- 🔗 [Commit](https://github.com/CypherPoet/100-days-of-swift/commit/7f112b367b6e95e8ba795f1fbc710a2354a6ccfa)
+
+
+
+## 📸 Screenshots
+
+<div style="text-align: center;">
+  <img src="./screenshot-1-landscape.png" width="968px;"/>
+  <img src="./screenshot-2.png" width="968px;"/>
+  <img src="./screenshot-3.png" width="968px;"/>
+  <img src="./screenshot-4.png" width="968px;"/>
+</div>
+
+
+## 🔗 Additional/Related Links
+
+- [Apple Docs: SKEmitterNode](https://developer.apple.com/documentation/spritekit/skemitternode)
+- [Apple Docs: Optimizing Emitter Node Performance](https://developer.apple.com/documentation/spritekit/skemitternode/optimizing_emitter_node_performance)