How to send fake packet?

Hello everyone!
I need to send the player a false package that other players have 0 health. But so that they can see the players.
I want to turn such a scam to protect the server from certain types of cheats. (In some cheats, the killaura(or other) does not work if the player has 0 hp.
I'm just starting to master the packages, so explain how for a beginner, please.

 

@Abcik
Send this packet:
https://wiki.vg/Protocol#Update_Health

I'd recommend you use protocol lib for this. You can learn how to use it here :
https://dev.bukkit.org/projects/protocollib/pages/tutorial

 

Thank you very much. Using your recommendations I was able to get here. But how do I set the value of health?

 

@Abcik

FakeHP.getFloats().write(0, HEALTH);

(Note that the 0 means find the first float)

Just remember you will also need to write the food level (an int) and the saturation (float) as well, or the packet could crash the client.

 

@Zombie_Striker

Okay, but now it has changed not only the health, but I also have food level.

 

I use this:



@Zombie_Striker And yet, how can I still make it so that not my hearts change, but only other players and mobs? I understand that there will have to use a for loop.