How to approach creating a cosmetic plugin?

Hello, I am pretty unsure on how to approach and start creating a cosmetic plugin and what I should expect and should consider while creating the plugin. The main concern I am worrying about is overthinking the situation. Any help is greatly appreciated

 

@timtower There will be over 6 categories of cosmetics (Particles, Morphs, Pets, etc) which when the command /cosmetics is run, the cosmetics menu will open. This will then give the player access to the other categories.

I want the player to be able to move smoothly throughout the GUI.

 

You will need to look at:

Packets - Packet Tutorial and the easiest way to go about this will be with <Edit by Moderator: Redacted not allowed paid resource url>

Inventories and GUIs - Creating Custom Inventories.

Commands and Permissions- Simle enough, you should know this.

Custom Entities - Changing an Entities Behaviour

 

I do know this. But the problem I am facing the most is how would I go around organizing this. Also, what would be the best way to reduce lag for the player when using the cosmetic menu?

 

@timtower

Morphs and Particles.

@ItsComits

Organise it in Classes, have different classes for each of the different things. It shouldn't lag the players client?