SpriteKit side scrolling doesn't update physicsWorld

Question

Following the example here (except in Objective C) and the standard Apple documentation, I discovered that the physicsWorld doesn\'t update its positions when

Answer 1

I don't know what's changed in the last 2 years, but the other answer here didn't work anymore. Instead, now I combine the rope segments position with its parent's (the full rope). So I just do

CGPoint convertedRopePosition = CGPointMake(ropePhysicsBody.node.parent.position.x + ropePhysicsBody.node.position.x, ropePhysicsBody.node.parent.position.y + ropePhysicsBody.node.position.y);
SKPhysicsJointPin *jointPin = [SKPhysicsJointPin jointWithBodyA:monkeyPhysicsBody bodyB:ropePhysicsBody anchor:convertedRopePosition];

This is needed because the rope segment is placed under the full length of the rope, so it's position is relative to the full rope rather than the scene.