Connecting to Servers¶
Your primary dealings when connecting to a server will be with the Connection class
The packet class uses a lot of magic to work, here is how to use them.
Look up the particular packet you need to deal with, for this example
let’s go with the
Pay close attention to the definition attribute, and how our class variable corresponds to the name given from the definition:
from minecraft.networking.packets import serverbound packet = serverbound.play.KeepAlivePacket() packet.keep_alive_id = random.randint(0, 5000) connection.write_packet(packet)
and just like that, the packet will be written out to the server.
It is possible to implement your own custom packets by subclassing
minecraft.networking.packets.Packet. Read the docstrings and in
packets.py and follow the examples in its subpackages for more details on
how to do advanced tasks like having a packet that is compatible across
multiple protocol versions.
Listening for Certain Packets¶
Let’s look at how to listen for certain packets, the relevant decorator being
A decorator can be used to register a packet listener:
connection = Connection(options.address, options.port, auth_token=auth_token) connection.connect() from minecraft.networking.packets.clientbound.play import ChatMessagePacket @connection.listener(ChatMessagePacket) def print_chat(chat_packet): print "Position: " + str(chat_packet.position) print "Data: " + chat_packet.json_data
Altenatively, packet listeners can also be registered seperate from the function definition.
An example of this can be found in the
start.py headless client, it is recreated here:
connection = Connection(options.address, options.port, auth_token=auth_token) connection.connect() def print_chat(chat_packet): print "Position: " + str(chat_packet.position) print "Data: " + chat_packet.json_data from minecraft.networking.packets.clientbound.play import ChatMessagePacket connection.register_packet_listener(print_chat, ChatMessagePacket)
The field names
json_data are inferred by again looking at the definition attribute as before