Randomizer [1.13.2 - 1.21.X]

Randomizer [1.13.2 - 1.21.X] -----

Make yourself some challenge in survival!

Randomizer 1.13.2 - 1.19.X
A lightweight plugin to just drop random items out of every specific block, like you might have seen in several youtube challenge-videos.

THIS IS A SERVER PLUGIN!

IMPORTANT!
When you first install the plugin, make sure to execute the /randomizer shuffle command at least once to initally generate the random partners!

You need at least Java 11 to run this plugin, as it is compiled with JDK 11.

Features
Every time you execute the /randomizer shuffle command, new item pairs will be generated. So, if the generator decides that only grass_block s drop out of dead_bush es, then every time you break a dead_bush, you will get a grass_block. The dropped item can be any holdable item.
Permissions/Commands
randomizer.shuffle - /randomizer shuffle - Generates new random partners
randomizer.toggle - /randomizer start - Starts the Randomizer
randomizer.toggle - /randomizer stop - Stops the Randomizer
randomizer.toggle - /randomizer check - Checks if the Randomizer is currently active
no permission required - /randomizer - Sends a little helpmessage
To Do

Permissions to generate new random partners
Saving the partners until you execute the generate-command so that you can even restart the server and a dead_bush will still, for example, drop a grass_block.
Command to turn the randomizer on and off
Option to Disable certain drops like: Debug_stick, barrier, etc.
Option to enable multidrops
Mob Drops?
Suggest your own features in the Discussion tab!