Compatibility with legacy level

[ci010]

@John-Dean The PR #250 has some breaking change to the legacy region (1.14.4 1.12.2) format. Currently, I skip the tests to pass the build.

See github action https://github.com/Voxelum/minecraft-launcher-core-node/actions/runs/3919028110/jobs/6699776543 result.

If you have time you can take a look, I might pick up this item when I have time later.

[John-Dean]

Apologies, not too well at the moment (managed to catch the flu).

I've looked into this and basically we need to detect the version (pre 1.16) and then run a different function on it, see here: https://github.com/spoutn1k/mcmap/blob/fec14647c600244bc7808b242b99331e7ee0ec38/src/chunk_format_versions/section_format.cpp#L6

Currently the code is using the post 1.16 function, we need to implement the pre 1.16 and then version detect and select the correct one.

I'll look at this in a week or two when I'm feeling 100% again, but if you can get to it sooner that would be great.

John

[John-Dean]

https://github.com/Voxelum/minecraft-launcher-core-node/pull/255

[ci010]

I just checked-in a big refactor on all packages. The @xmcl/world is merged to @xmcl/game-data package. The major breaking change is I remove the dependency of Long. Now we use native bigint to handle the Long. Currently, it's lack of test. If you have any finding please let me know.