Light levels and some newer blocks are not correctly handled

[Szabolcs05]

Hi there,

After I made my limbo use a schem file I noticed that the light levels are at 100% at every place all over at the loaded schem. I think maybe the reason why its like that is to reduce resource usage but it would be lovely to make this one part work and so the whole limbo server have all the features that is needed for anybody.

Another thing that I noticed is that a few newer blocks specially 1.18+ are replaced by stone for some reason.

[Szabolcs05]

Okay, the block problem is a simple fix using the method described in the documentation, so only the light levels are the problematic thing.

[Quozul]

Hey, amazing work! Would love to see it merged upstream!

As for stone blocks, it's another issue where unknown blocks for that version gets replaced by a placeholder block.
Unknown blocks being either newer blocks than your current client version, or blocks that got renamed throughout the game's versions (eg. grass → short_grass since 1.20.3)
We would need some sort of mapping to convert the block names properly.