Board Thread:Questions and Answers/@comment-24386245-20140810124810/@comment-5483792-20140810232641

If you want to offset the sprites and background, you will need two variables for the location of the camera and you will need to substract these from the x and y variables of sprites when calling spofs, and put them in bgofs for the background.

If you want help with collision, It takes some time to explain that, so I'll let someone else who is more experienced than me explain it to you.

if those were not your question, then explain further please.