[API] PacketListenerAPI

[API] PacketListenerAPI -----

Simple API to manipulate sent and received packets | compatible with all versions

This API provides an easy way to listen for when a Packet is sent or received and includes functions to modify Fields of the Packet.

Versions after 3.8 require Java 11+

Code (Text):

PacketListenerAPI.addPacketHandler(new PacketHandler() {

@Override
public void onSend(SentPacket packet) {
}

@Override
public void onReceive(ReceivedPacket packet) {
}

});

The processed packets can also be limited by adding the @PacketOptions annotation.

If you are interested in manipulating packets directly on your BungeeCord server, check out the BungeeCord version of this API.

Examples

Checking a Packet

1.) Not version save

Code (Java):

PacketListenerAPI. addPacketHandler ( new PacketHandler ( ) {

@Override
public void onSend (SentPacket packet ) {
if (packet. getPacket ( ) instanceof PacketPlayOutSpawnEntity ) { // instanceof requires an import of the Packet, therefore not Version save
// Currently spawning an entity.
}
}

@Override
public void onReceive (ReceivedPacket packet ) {
}

} ) ;

2.) version save (recommended)

Code (Java):

PacketListenerAPI. addPacketHandler ( new PacketHandler ( ) {

@Override
public void onSend (SentPacket packet ) {
if (packet. getPacketName ( ). equals ( "PacketPlayOutSpawnEntity" ) ) {
// Currently spawning an entity.
}
}

@Override
public void onReceive (ReceivedPacket packet ) {
}

} ) ;

1.) Not version save

Code (Text):

@EventHandler
public void onPacketSend(PacketSendEvent e) {
if (e.getPacket() instanceof PacketPlayOutSpawnEntity) {// instanceof requires an import of the Packet, therefore not Version save
// Currently spawning an entity.
}
}

2.) version save (recommended)

Code (Text):

@EventHandler
public void onPacketSend(PacketSendEvent e) {
if(e.getPacketName().equals("PacketPlayOutSpawnEntity")) {
// Currently spawning an entity.
}
}

Modifying Field values

Code (Java):

PacketListenerAPI. addPacketHandler ( new PacketHandler ( ) {

@Override
public void onSend (SentPacket packet ) {
if (packet. getPacketName ( ). equals ( "PacketPlayOutSpawnEntity" ) ) {
packet. setPacketValue ( "f", <EntityID > ) ; //f is the Field in the packet which defines the Entity-type as an Integer
}
}

@Override
public void onReceive (ReceivedPacket packet ) {
}

} ) ;

1.) version save

Code (Text):

@EventHandler
public void onPacketSend(PacketSendEvent e) {
if(e.getPacketName().equals("PacketPlayOutSpawnEntity")) {
e.setPacketValue("f", <EntityID>);//f is the Field in the packet which defines the Entity-type as an Integer
}
}

Maven

Code (Text):

<dependency>
<groupId>org.inventivetalent.packetlistenerapi</groupId>
<artifactId>api</artifactId>
<version>VERSION-SNAPSHOT</version>
</dependency>

https://jitpack.io/#org.inventivetalent/packetlistenerapi

APIManager
This API is compatible with APIManger.
Click here for information on how to implement it.

Links

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Resource Information

Author:

----------

Total Downloads: 159,527

First Release: Jan 5, 2015

Last Update: Mar 27, 2022

Category: ---------------

All-Time Rating:

60 ratings

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Released: --------------------

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