godot 4.3
this is my code for multiplayer with authentication:
func createServer()->void:
var server_peer := ENetMultiplayerPeer.new()
server_peer.create_server(port)
multiplayer.multiplayer_peer = server_peer
multiplayer.auth_callback = Callable(self, "_auth_request_handler")
multiplayer.peer_authenticating.connect(_on_peer_authenticating)
func _auth_request_handler(peer_id: int, auth_data: PackedByteArray)->void:
print(peer_id,auth_data)
multiplayer.complete_auth(peer_id)
#multiplayer.disconnect_peer(peer_id)
func _on_peer_authenticating(peer_id:int)->void:
print("Peer is authenticating: ", peer_id)
func joinServer()->void:
var client_peer := ENetMultiplayerPeer.new()
client_peer.create_client(ip,port)
multiplayer.multiplayer_peer = client_peer
multiplayer.peer_connected.connect (inClientSide_clientConnected)
func inClientSide_clientConnected(id:int)->void:
if id==1:
var auth_packet :PackedByteArray= "test".to_utf8_buffer()
# Send the authentication data to the server
var error = multiplayer.send_auth(id, auth_packet)
print(id,auth_packet,error)
when client connects to server the function inClientSide_clientConnected will execute and will send auth data by multiplayer.send_auth(id, auth_packet) to server. this section will work without problem
in server when a client connects the function _on_peer_authenticating will execute without problem.
but after multiplayer.send_auth in client side, the function _auth_request_handler dont execute in server side for authenticating client.
the value of error in var error = multiplayer.send_auth(id, auth_packet) is 31 that means ERR_INVALID_PARAMETER
why ? is this a bug ?
hi. finally i found the solution.
i must use multiplayer.send_auth in signal function peer_authenticating in the client.
Now, if I want to emit peer_authenticating, I need to define a function for the auth_callback signal on the client side and also must send auth from server to client by peer_authenticating -> multiplayer.send_auth in server.
Then, at the end, I must to call multiplayer.complete_auth for id of server within the auth_callback in client.
extends Node
var port=8083
var ip='127.0.0.1'
func createServer()->void:
var server_peer := ENetMultiplayerPeer.new()
server_peer.create_server(port)
multiplayer.multiplayer_peer = server_peer
multiplayer.auth_callback = _auth_request_handler_server
multiplayer.peer_authenticating.connect(_on_peer_authenticating_server)
multiplayer.peer_connected.connect(_on_peer_connected_server)
func _auth_request_handler_server(peer_id: int, auth_data: PackedByteArray)->void:
print('_auth_request_handler_server: ',peer_id, " ", auth_data)
multiplayer.complete_auth(peer_id)
func _on_peer_authenticating_server(peer_id:int)->void:
print("Peer is authenticating (server): ", peer_id)
var auth_packet :PackedByteArray= "response from server to client".to_utf8_buffer()
var error = multiplayer.send_auth(peer_id, auth_packet)
print(peer_id,' ',error)
func _on_peer_connected_server(id: int) -> void:
print("Connected (server): ", id)
func joinServer()->void:
var client_peer := ENetMultiplayerPeer.new()
client_peer.create_client(ip,port)
multiplayer.multiplayer_peer = client_peer
multiplayer.auth_callback = _auth_request_handler_client
multiplayer.peer_authenticating.connect(_on_peer_authenticating_client)
multiplayer.peer_connected.connect(_on_peer_connected_client)
func _auth_request_handler_client(peer_id: int, auth_data: PackedByteArray)->void:
print('_auth_request_handler_client: ',peer_id, " ", auth_data)
multiplayer.complete_auth(peer_id)
func _on_peer_authenticating_client(peer_id:int)->void:
print("Peer is authenticating (client): ", peer_id)
if peer_id==1:
var auth_packet :PackedByteArray= "authentication data to server".to_utf8_buffer()
var error = multiplayer.send_auth(peer_id, auth_packet)
print(peer_id,' ',error)
func _on_peer_connected_client(id:int)->void:
print("Connected (client): ", id)