SKSpriteNode class https://developer.apple.com/library/ios/documentation/SpriteKit/Reference/SKSpriteNode_Ref is the one that we are going to use in order to load the sprites that will be a part of our game.
SKSpriteNode class is a subclass of
SKNode, and it's used to represent visual elements called
sprites on the screen by using images. As you are going to need an image to create a sprite (an instance of
SKSpriteNode class), perform the following steps to add it to the project:
7338_01_Resources.zipfile in the desired location.