The Top Left Corner Button - It turns green if there's anyone online, not just you. If you're alone in the server, the button will turn red and if someone joins, this means there will be at least 2 users online, it will turn green. For the distance from the wall to the player (collision) is fixed cause I used a hitbox. If you think that now it needs more distance, I'll add it. I've switched the costumes of the online players and now they're like your player but red. Also, I made the thing that when the other player is in an edge it hides.