Hi:
Please how can I block translation movement of my FPS when he have certain disance with another object
You could simply add a collider (with mesh rendering disabled) to the object itself, but if you want it to interact with your FPS movement script we’ll need to have a look at it.
Also, please try to provide more information, are you using a character controller? Or a rigidbody? It’s hard to give you an answer without any relevant details.