Hide item in hand to other players

I need to know how I can hide the item a player has in their inventory to other players.
For example:
I am holding a sword, I don't want the other players to see it.

 

njb_said Packets will do the job. There are multiple ways of doing this. Most easy one is by using protocolLib and listen for the Packet20NamedEntitySpawn and then set field 'h' to 0.

 

Kind of dont want to use any dependancies, is there another way
And thanks for the quick reply

 

Theoretically you could use NMS code and do what CaptainBern suggested manually. But I do not see any reason why you want to implement an extremely complicated behaviour by yourself (and keep it updated whenever Minecraft is updated), when you can just use ProtocolLib that was written for exactly this job.

If you are worried about dependency management, just use Maven.

 

njb_said Oh god you don't know what you're saying. Please for the sake of simplicity use protocolLib, you could write your own system to check for outgoing packets the same way TagApi uses but I'm not recomanding it.

 

I have never used protocollib to "use" as a developer. Would I listen on on that packet as an event (no) or would I do it in the onEnable() or my init class.
Using the protocolmanager and add a listener?
Thanks : )

 

njb_said
Erm, you can use this?

Code:

for(Player players : Bukkit.getOnlinePlayers()){
                    players.hidePlayer(player);
                }

It'll make them invis. and it wont show their item in hand.

 

You know, technically, he's right.

 

njb_said Try something like this:

Code:java

 @Override
public void startup() {
ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(this.plugin, ConnectionSide.SERVER_SIDE, ListenerPriority.HIGH, 20, 5) {// I hope this works, else try Packets.Server.NAMED_ENTTY_SPAWN and Packets.Server.ENTTY_EQUIPMENT
@Override
public void onPacketSending(PacketEvent event) {
if (event.getPacketID() != 20 || event.getPacketID() != 5) { //check if it's the spawn packet or the equipment packet
return;
}
final PacketContainer packetContainer = event.getPacket();
try {
//here check if its the Packet20NamedEntitySpawn, if so then read index 8 (thats the item inhand) and set it to 0 or null.
 
//if its the Packet5EntityEquipment then read index c, this should return an NMS Itemstack, just create a new bukkit itemstack, use some reflection to convert it to an nms-itemstack and set index c to your fresh created itemstack.
} catch (final FieldAccessException e) {
e.printStackTrace();
}
}
});

 

CaptainBern thanks Ill give that a try

amhokies CdoingBaddie No that would hide the PLAYER not the item in hand