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dslake edited this page Aug 23, 2012 · 8 revisions

World Downloader

With this mod you can download parts of a multiplayer world while you are connected to the server.

Download for Minecraft 1.2.3 https://github.com/downloads/nairol/WorldDownloader/WorldDownloader-1.2.3a.zip

Download for Minecraft 1.2.4 http://www.mediafire.com/?ekpmbcnaknb57fw

Download for Minecraft 1.2.5 http://www.mediafire.com/?r5i531524edgyl7

Download for Minecraft 1.3.1 http://adf.ly/BiQE4

Download for Minecraft 1.3.2 http://adf.ly/BwIeZ

How to install:

Open your minecraft.jar* with an archive tool like 7zip or WinRAR. Put the class files you just downloaded in there. Overwrite if necessary. Delete the META-INF folder if it exists in the jar file. Close the archive and save if asked. Done.

  • You can find this file on ... Windows by entering %APPDATA%.minecraft\bin in an Explorer window or in the start->run dialog. Linux by opening ~/.minecraft/bin/ in a file manager of your choice. Mac OS X by opening Library/Application Support/minecraft/bin in Finder.

Frequently Asked Questions

What does it save automatically?

  • All blocks that are within your range of vision (typically 160 blocks in each direction)
  • From height 0 (bedrock) to 255 (clouds)
  • Your position, health, inventory, experience, gamemode (creative/survival), the time and the weather
  • All mobs and animals
  • All items that lie on the ground
  • What doesn't it save automatically? How can these things be saved?
  • Content of chests and dispensers -> Will be saved whenever you open them (right-click)
  • Ingredients and products in furnaces and brew stands -> Will be saved whenever you use them (right-click)
  • The note of note blocks -> Will be saved whenever the note is played (click/right-click/redstone)

What can't be saved?

  • The seed value of the world. It is no longer sent by the server.
  • Records that are in record players.
  • The spawn position if it has been moved (by the admin or by sleeping in a bed).
  • Other human players of course

Does it start to download when I join a server?

No, you have to start and stop the download by pressing the escape key and clicking on "Download this world"

I want to download an area bigger than my range of vision. What should I do?

Walk around and visit everything you want to have in your copy while the downloader is active. (Or fly, ride, teleport, swim, ...) World Downloader works much like the maps in Minecraft. (The paper ones you can craft)

How long does it take to download a world?

As soon as something is in your range of vision (the 160 blocks mentioned above) it is also in your copy. Again, think of Minecraft's maps.

Does this mod interfere with the server?

No, the mod doesn't cause any additional load on the server. It doesn't send or request anything. It just looks at the incoming data, converts some data structures and saves everything as a singleplayer world.

Can this mod be used to synchronize my copy with the server world?

Of course! Just reconnect to the server and start the download. The mod will update your copy of the world to the current state. Any changes you made in your copy, in the area you're updating, will be overwritten.

What happens to previously downloaded areas that I don't visit while updating my copy?

They'll stay the same. The mod does not delete anything from your copy. It only updates the area you are currently in and doesn't touch anything else.

Why the restriction to 160 blocks in each direction? Why doesn't it download the whole world?

The server only sends a certain amount of data. This is a server-side restriction and my mod can't do anything about that.

Why can't I just put your ZIP-file into my mods folder?

The mod that enables Minecraft to load other mods from this folder is called ModLoader. ModLoader can only load mods that don't change any existing class files. My mod needs to overwrite quite a few of them.

May I use your mod in a modpack?

Yes, do what you want with it. A link to this thread would be nice though, so that your users can report bugs.

May I use your source code for my own mods?

Yes, do what you want with it. If you use large amounts of code it would be nice to mention my mod or me somewhere.

Your mod is incompatible with XYZ. Can you provide files with both mods' changes?

Probably, but I don't want to. This means I'd have to update the files every time XYZ has a new version. Now imagine I'd also have to do this when mod ABC has a new version, and mod DEF.

How can I block this mod on my server?

There is no magic chat text sequence that disables the mod and there won't be one in the future. Be creative. Maybe you will find a different way to block the mod or destroy the downloaded worlds. I won't add anything to my code that helps you in this regard. Why? Partly because I hate DRM, partly because a kill switch is very easy to remove but mostly because I don't care what people do with my mod. You are responsible for what you do. Break the rules -> live with the consequences.

To do:

  • Add an option to automatically start the download when you connect to a server (in next release)
  • Maybe add a map that highlights the already downloaded chunks
  • Update the screenshots and maybe the video
  • Multiworld support (in next release)
  • Make it compatible with Forge(in next release)
  • If you find any bugs that crash Minecraft PLEASE also add the text from the error report screen. Without that I probably won't be able to help you.
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