Protocol version 2211

← Packet index

Packet 58

LevelChunkPacket

Level Chunk Packet

Used to start a chunk transaction.

Packet datagramWire order
HeaderID 58varuint
0Chunk PositionChunkPos · variable
1Dimension IdDimensionType · variable
2Sub-chunks Countvaruint32 · variable (up to 5 bytes)
3Client Request SubChunk Limitvarint32 · variable (up to 5 bytes)
4Cache Enabledboolean · 1 byte
5Cache Metadataarray<LevelChunkPacketPayload SubChunkMetadata> · variable
6Serialized Chunk Datastring · variable
7Is Client Biome Updateboolean · 1 byte

Serialized fields

8 top-level fields
  1. 0Chunk PositionChunk column position (chunk x, chunk z).ChunkPos
    1. 0XCompressionvarint32
    2. 1ZCompressionvarint32
  2. 1Dimension IdDimension the chunk belongs to.DimensionType
    1. 0valueCompressionvarint32
  3. 2Sub-chunks CountNumber of sub-chunks serialized in this packet.Compressionvaruint32
  4. 3Client Request SubChunk LimitoptionalOptional client sub-chunk request limit; -1 means no limit. Present only in request mode.Compressionvarint32
  5. 4Cache EnabledWhether the client cache (blob) protocol is used for this chunk.boolean
  6. 5Cache MetadataPer-sub-chunk cache blob hashes; populated only when Cache Enabled is set.LevelChunkPacketPayload SubChunkMetadataas array<LevelChunkPacketPayload SubChunkMetadata>
    1. 0Blob IdContent hash identifying the cached blob for this sub-chunk (see the client cache protocol).uint64
  7. 6Serialized Chunk DataThe serialized chunk payload (block, biome, heightmap and block-entity data).string
  8. 7Is Client Biome UpdateWhether the server biome data overrides the client biome data.boolean

Changelog

Stable releases

Changes between stable protocol releases.

No stable release changes are recorded for this packet.