Block example? about nbt HOT 4 CLOSED

The NBT library currently only features low-level NBT read and write functions, while the mid-level data-file functions are missing. The block_analysis indeed only works on the old file format. I hoped to find some code at Fenixin's projects, but couldn't find it right away.

My suggestion is to start with the mob_analysis.py code in the examples folder, and work from there.

For starters, print the contents of the chunk. Thus in the main() routine:

            print("---------------")
            for chunk in world.iter_nbt():
                print(chunk["Level"]["Sections"].pretty_tree())

This prints a lot of information. Along with http://minecraft.gamepedia.com/Chunk_format you should be able to figure out what data you want.

You need the "Block" tags, and optionally the "Add" tag and "Data" tag, if you want to support non-standard blocks and block variants respectively. It really depends what you like to support.

from nbt.

Awesome, that helps a bunch. I saw the block_analysis code and would have spent a while trying to find something comparable for anvil maps.

Thanks.

from nbt.

The block_analysis contains a lot of code dealing with boundaries. If your boundaries align with your chunks, things are much easier.

The main issue is what to do with with undefined ("inconceived") chunks and sections. For (vertical) sections it is easy: you can assume that if they are not defined, it is all-air. For undefined chunks, it is up to you what to do with it.

By the way, if you manage to create a small script, we're happy to take that as a contribution as an example script. :)

from nbt.

Fortunately I'm only concerned with the distribution of blocks that exist, so I can just check every chunk and not worry about which ones aren't there.

If I get it working I'll be sure to put in a pull request.

Again, thanks for your help, really got me motivated.

from nbt.