RNG

Here you are going to find information about Random Number Generation aka. RNG particularly in Minecraft.

RNG in General

Mathew Bolan has a nice series explaining this using minecraft seeds: Seed Finding and Reverse Engineering

Entity RNG

TODO

Servers and RNG

TL;DR On some servers RNG manipulation doesn't work(and with that some features of this mod). This is because of the server software they use, specifically on servers that use Paper RNG manipulation does not work (check f3 for the server brand).

There are many different server brands and most of them have some modification to the minecraft code to for example add support for plugins. Some servers want to boost their performance and for a compromise break some of the default Minecraft behavior. Thus entity RNG manipulation, what enables E. g. /cenchant, may be one of the behaviors of Minecraft that gets broken. Sadly most of the big Minecraft servers like Hypixel go for performance over default behavior, so RNG manipulation doesn't work on them.

But as long as the server you are playing on isn't in the servers listed below everything to do with RNG manipulation in this mod(for ex. /cenchant) should work fine.

Servers, that break the default RNG behavior:

• Paper
  • RNG manipulation doesn't work because of this patch

What is my server brand?

Press f3 in order to open the debug screen.
In the 3rd row on the left your server brand should appear. By default in single player it should say integrated server.