Camera boundaries, help

Hello, I am creating a game in bge and would like some help with camera boundaries

Here’s the deal, i have a camera attached to a player and when i move the mouse the camera will follow to a certain boundary which will be a circle. I have looked at this guide


but he uses a box and I would like to have a circle which i just cant figure out.

Like this.

Hope that clears the picture of the goal here. :slight_smile: