Port forwarding

multiplayer/ip_display.gd

@@ -0,0 +1,8 @@
+extends Label
+
+
+func _ready() -> void:
+	Lobby.update_ip.connect(on_update_ip)
+
+func on_update_ip(to: StringName):
+	text = to

multiplayer/ip_display.gd.uid

@@ -0,0 +1 @@
+uid://dq2pv2wy8uojd

multiplayer/lobby.gd

@@ -9,6 +9,8 @@ signal lobby_joined
 signal lobby_closed
 signal update_teams_state
 
+signal update_ip(StringName)
+
 var in_lobby: bool = false
 
 var attack_team: Array[int] = []
@@ -27,6 +29,9 @@ func _ready() -> void:
 	multiplayer.server_disconnected.connect(server_disconnected)
 	multiplayer.peer_connected.connect(add_and_sync_peer)
 
+func _enter_tree() -> void:
+	pass
+
 func player_left(id: int) -> void:
 	if attack_team.has(id):
 		attack_team.erase(id)

multiplayer/port_forward_button.gd

@@ -0,0 +1,24 @@
+extends Button
+
+
+func _pressed() -> void:
+	var upnp = UPNP.new()
+	
+	var discover_error = upnp.discover()
+	
+	if discover_error != UPNP.UPNPResult.UPNP_RESULT_SUCCESS:
+		Lobby.update_ip.emit("Discover error: " + str(discover_error as UPNP.UPNPResult))
+		return
+	
+	var error_udp = upnp.add_port_mapping(Lobby.PORT)
+	if error_udp != UPNP.UPNPResult.UPNP_RESULT_SUCCESS:
+		Lobby.update_ip.emit("UDP forward error: " + str(error_udp as UPNP.UPNPResult))
+		return
+	
+	var error_tcp = upnp.add_port_mapping(Lobby.PORT,0,"","TCP")
+	
+	if error_tcp != UPNP.UPNPResult.UPNP_RESULT_SUCCESS:
+		Lobby.update_ip.emit("TCP forward error: " + str(error_tcp as UPNP.UPNPResult))
+		return
+	
+	Lobby.update_ip.emit(upnp.query_external_address())

multiplayer/port_forward_button.gd.uid

@@ -0,0 +1 @@
+uid://r1uwav8lrw6c