How to Make a Game Like Candy Crush w/ SpriteKit and Swift

Reference: https://www.raywenderlich.com/55-how-to-make-a-game-like-candy-crush-with-spritekit-and-swift-part-1

https://www.raywenderlich.com/55-how-to-make-a-game-like-candy-crush-with-spritekit-and-swift-part-2

https://www.raywenderlich.com/55-how-to-make-a-game-like-candy-crush-with-spritekit-and-swift-part-3