Multiplayer Progress 2

Most of the game has been converted to multiplayer. Due to my lack of knowledge in making an account system I decided just to make it so you only have to make a username, and you will receive a random UID (this can be used to know who is who like for example, you can tell if someone is actually the popular YouTuber you think they are). You cannot change your username later. The player save is encrypted to avoid people using notepad to cheat (saves will obviously not be encrypted because there is no reason to secure a world).