How can I simply make it so when a user uses a command then it creates a new world called "world <playername>" from a map I have already made so each player can have their own version of my map that they can edit? I have seen this in plugins like skyblock and it's basically the same as what I want. Thanks in advance! Edit: I'm currently using: Bukkit.createWorld(new WorldCreator("Player-base")); to create the world. Instead of creating a new world, how can I generate a copy world of another world I have and where "player" is in "player-base" how can I change it to the players name?