TheVeryStarlk

This article explains how chunk packets work in Minecraft 1.8 (PVN 47). I was motivated to write this due to the lack of easily understandable documentation for this version of Minecraft. I drew inspiration from the Wiki's article. This article wouldn't have been possible without the awesome folks from the Minecraft Protocol Discord server.

Terminology

• Section: A 16x16x16 collection of blocks, including block light and skylight.
• Chunk: A vertical stack of 16 sections.

Packets

• 0x21: Used to send a single chunk column.

aamiaa

The original snippet no longer works!

On 02/09/2024 at around 8pm UTC, Discord flipped an experiment (2023-09_mobile_redesign_override_toggles) which ignores the layout toggle that this script relied on.

If you want to continue using the old layout, you can either use a modded mobile client (such as Vendetta) to disable that experiment, or downgrade to an old version of the app.

Method 1 - Downgrading (Android)

Tip

Use this one if you want a fast, beginner-friendly solution and don't mind using a version from November 2023

1. Download version 205.15 of Discord mobile app from ApkMirror