This is heavily (ahem) influenced by this tutorial https://www.raywenderlich.com/55-how-to-make-a-game-like-candy-crush-with-spritekit-and-swift-part-1#toc-anchor-009
This is heavily (ahem) influenced by this tutorial https://www.raywenderlich.com/55-how-to-make-a-game-like-candy-crush-with-spritekit-and-swift-part-1#toc-anchor-009