Initial 1.20.2 support

[crux153]

This PR adds preliminary support for version 1.20.2.

Before merging this PR, we need PrismarineJS/prismarine-nbt#78 and PrismarineJS/node-minecraft-protocol#1264 to be merged and released.

I have tested that a bot can successfully log in to an offline server and interact with chunks using this patch. But I believe additional testing is necessary.

[rom1504]

can you

• add the new version in the tested versions to trigger tests
• update the version towards the open PRs for the changed deps

[rom1504]

added the version in tested version

some things needed here:

• check against new things in Pc1.20.2 node-minecraft-protocol#1265
• chunk packets

[rom1504]

https://minecraft.fandom.com/wiki/Java_Edition_1.20 references of new things

https://github.com/PrismarineJS/minecraft-data/blob/master/data/pc/1.20.2/protocol.json to diff against https://github.com/PrismarineJS/minecraft-data/blob/master/data/pc/1.20/protocol.json

tasks here

• list things that need update here
• do it here and potentially in sub packages (pchunk ?)
• make tests work
• test a few examples manually

[Newtbot]

https://minecraft.fandom.com/wiki/Java_Edition_1.20 references of new things

https://github.com/PrismarineJS/minecraft-data/blob/master/data/pc/1.20.2/protocol.json to diff against https://github.com/PrismarineJS/minecraft-data/blob/master/data/pc/1.20.1/protocol.json

tasks here

• list things that need update here
• do it here and potentially in sub packages (pchunk ?)
• make tests work
• test a few examples manually

the protocol.json link redirect to 404

[rom1504]

Fixed

[wgaylord]

Adding this into the block.js in mineflayer adds support for the chunk batch system. Normally MC clients average the last 15 chunk batches but I think we can get away with not doing that.

var chunkBatchStartTime = 0
  bot._client.on('chunk_batch_start', (packet) => {
    chunkBatchStartTime = Date.now()
  })
  
  bot._client.on('chunk_batch_finished', (packet) => {
    var chunkPerMili = packet.batchSize / (Date.now() - chunkBatchStartTime)
    bot._client.write('chunk_batch_received', {
      chunksPerTick: 25 / chunkPerMili
    })
  })

[rom1504]

moving to #3262 to make things easier to contribute to