Help/Regenerating Chunks

Whenever the LotR mod updates, all kinds of cool new content is added. But, if you have already generated a lot of chunks, you will not get to experience some of this new content in your old terrain.

The simplest way to deal with this is to simply explore more terrain; generally, only a small percentage of the potential chunks in a world will ever have been generated. But if you generated a lot of chunks and you wish to have those regenerated while keeping your builds safe, there is a way.

First, back up your world.

Next, go to your LotR directory (or .minecraft) and follow the following path:

LOTR > saves > [World name] > MiddleEarth > region

Inside that folder, you should see a whole bunch of .mca files. Their names correspond to coordinates on your map.

Now, find the coordinates of all the builds you want to save and use this website to find out which .mca files correspond to your builds. Write down the names of these files.

Next, delete all the .mca files in the region folder EXCEPT the names you wrote down.

Finally, load your world and check on your builds. If something's missing, your build might be taking up more than one .mca file. In that case, find the coordinates of the missing part of your build, and re-introduce that .mca file from your backup (just copy it over).

This procedure may be tedious, but it'll be far less tedious than rebuilding Minas Tirith from the ground up!