Commits on Jun 27, 2024

1. feat: Extract proper registry data from vanilla datapack …

   Finally, the entire world is a plains biome!
   
   Jokes aside, what this patch does is as follows: It expands the amount
   of data extracted from the official server to include the vanilla
   datapack registries, and adds code to parse them at run-time from the
   file system. This means the application now has a much better
   understanding of the knowledge shared by both the server and client.
   
   For instance, when upgrading to a new version of Minecraft, I would
   previously have to capture the flow of Registry Data packets from a
   real server, which CobolCraft would then re-play as a blob. Any data
   within that packet, such as biome IDs or chat message types, would
   need to be hard-coded where they were needed, since the server-side
   aspects of the data would simply be missing.
   
   Now, with the "--server" flag added in the Makefile, JSON files are
   exported for every vanilla registry entry. Using newly-implemented
   C++ routines to obtain directory listings (why is this not part of
   GnuCOBOL?), the registries can be filled in at run-time. The Registry
   Data packet now sends the actual data instead of an opaque blob.
   
   As a proof-of-concept, the new methods are used to lookup the
   "minecraft:plains" biome at chunk allocation such that we get a much
   nicer tint of the environment (compared to "minecraft:badlands", which
   happened to be the default ID 0 when using the blob).

   

   meyfa committed Jun 27, 2024
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