How to load in scenes additively with a position relative to the camera?

I'm making an endless runner game as a hobby project.

As part of this I wish to load in scenes additively so they're there while the original scene is also there, and then unload the added scene after it has passed by, a bit similar to Jetpack Joyride.

Currently, the player moves at a certain speed in one direction, he jumps to survive. The camera follows the players relative position.

My issue is that when I add new scenes, I cannot get the objects of the scene being loaded to have its position relative to the player/camera, in other words it spawns at a wrong x/y position.

I have attempted using this script in each of the objects of the scene:
// Use this for initialization
void Start () {
//set position relative to camera.
Camera camera = Camera2DFollow.cam;
transform.position = new Vector2(transform.position.x + camera.transform.position.x, this.transform.position.y);
}

The issue with this script is that it seems to move the spawned objects further and further away, so first spawn works alright, 2nd spawn spawns a bit further ahead, 3rd a bit more ahead and so on.

How do i go about solving this?

Thank you for reading this and hopefully helping me resolve the issue.

Oh and please ask questions if I am not being clear enough.

Here is a picture displaying the issue, the picture shows the game paused and zoomed out, this is after the game has run for around 20-30 seconds.

 

I also just noticed I get this error.

NullReferenceException: Object reference not set to an instance of an object
SetPositionRelativeToCamera.Start () (at Assets/Scripts/SetPositionRelativeToCamera.cs:12)

But I'm not sure why I get the NullReferenceException.

The camera I refer to in Camera2DFollow is admittedly in a different scene than the object using the script, but as the camera variable being loaded is static, this should not be an issue, or?

 

moved this to the Scripting section, how do I delete my post XD?

http://forum.unity3d.com/threads/ho...ith-a-position-relative-to-the-camera.383069/