Scrolling combined with physics moves my sprite out of the screen

Question

I'm implementing a side scrolling game with SpriteKit:

As long as my sprite stays in the middle of the screen, I'm moving the sprite

When the sprite reaches the left or the right part of the screen, I'm moving the level instead of my sprite:

This works quite well, unless my sprite collides with another object. In that case the level (triggered by my code) and the sprite (triggered by the physics engine) are moved and the sprite moves outside the screen:

I tried to stop the impulse which is applied from the physics engine. This hasn't worked.

Any idea how to handle this?

Thanks Stefan

Answer 1

I suppose by "moving the level" you mean moving the background view.

Why don't you just have an area in which your sprite moves that is the same size as your background? You can scroll to keep the sprite visible without disturbing the logic of physics and other manipulation of the movement.