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I have two Minecraft Bukkit SMP server instances on my host and I understand there's a default "world" included with each instance. I've read about multi-world support in future versions of Bukkit or Minecraft, but at the moment, I believe I'm stuck with a single "map" for each world.

Am I missing something or am I currently limited to a single world (and a single map) on each server?

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up vote 6 down vote accepted

AFAIK, there is no difference between "map" and "world."1

You can generate new maps/worlds for your server by renaming the "world" folder that is in the same directory as your server. When you start your server, it will see that there isn't a world named "world", and will create one.

1Note: There is now a map object in the game.

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@ John: Thanks. Each server normally will host a single world is what I'm understanding. Also, when people currently refer to a map, they must be talking about a custom, pre-built world. – phatjim May 24 '11 at 12:26
@phatjim Each server can only host a single world at a time. You can change what world it is hosting. I had forgotten about that use of the term "map." That sounds correct. – John the Green May 24 '11 at 12:56

The world is the terrain around you, the actual blocks that make up what you see and interact with. A map is some 2D representation of the world (Aside: This applies to the real world too!). There are already programs to generate a variety of different maps, from straight top-down maps to cave-maps, isometric maps, etc.

In Minecraft 1.6 there will be a new map item which can be crafted to provide top-down mapping functionality in-game.

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@ Fredley. Thanks. This makes sense. – phatjim May 24 '11 at 12:28

Bukkit does support multiple worlds, but as far as I know you need a plugin that implements this, such as MultiVerse or NetherGate. I suppose that it supports multiple worlds from a plugin developer's perspective; it doesn't do it itself out of the box.

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Note that vanilla is getting Nether functionality in the next release, and presumably Bukkit will support it natively immediately. There are still tons of Bukkit plugins for multiple worlds/cross-server warps, etc. – Shinrai May 24 '11 at 2:37

Chances are it is referring to a 'world' as a space where people can play, and a 'map' as the terrain data which occupies said world.

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