Sine Wave Motion In SpriteKit

Question

I want to make sine wave motion from the first point in the screen to the last Point in the screen, independent on the size of the screen.

Here is my code, but it d

Answer 1

I would create a game loop based that updates all of your game elements instead of relying on SKActions. SKActions is generally a way to perform animations, for continuos movement of game elements make a simple engine and have it update the positions of your red birds.