Talk:Pre-release protocol

Protocol Change 13w21a

It appears there may be a new packet in 13w21a. It may be a 2C packet. Anyone have any insight into the changes for this snapshot?

Thanks

vbisbest 12:39, 29 May 2013 (EST)

0x2C is known as Spawn Global Entity, like thunderbolt

--Mct (talk) 23:25, 23 May 2014 (UTC)

Chunk Deallocation

In the discussion of the removal of the Chunk Allocation Packet, the article says: "To deallocate memory you need to send a MapChunk packet, which only contains biome data for plains(all biome bytes set to 1)." According to my testing of a custom client with a vanilla Minecraft 1.3 server, when a chunk goes out of range the server actually sends a Chunk Data (0x33) packet ground_up_continuous=true, primary_bit_map=0, add_bit_map=0, and real actual biome data (in my case it was mostly plains and some desert). This suggests that the sentence should be edited to: "To deallocate memory you need to send a Chunk Data (0x33) packet which only contains biome data.". If someone else can confirm this, please post here. I think this makes more sense, and it's easier to test for in the client because you don't have to look at the compressed data at all. --DavidEGrayson 23:33, 28 July 2012 (MST)

In my client I check for the ground_up_continuous=true, primary_bit_map=0, add_bit_map=0. The biome data is sent because it is always sent.

I don't know if it's real or not, but you don't need to check it

Shoghicp 12:15, 30 July 2012 (MST)

Spawn player has changed

This is what I got as a spawn player packet. Packet size prefix is not included here and the stream is the complete packet.

   0C-Packet ID
   AF-7B- Entity ID varint encoded
   68-F1-F7-49-8B-9F-37-27-86-3A-B1-4E-EA-1C-5C-83- My guess, UUID binary, was previously a string
   FF-FF-F1-B5- X?
   00-00-08-D0- Y?
   FF-FE-AE-66- Z?
   6B-D5-00-35-71-00-00-00-00-00-00-10-00-21-01-2C-82-00-52-00-00-02-D5-03-00-66-41-99-99-9A-47-00-00-00-00-08-00-09-00-0A-7F-7F