server: added broadcast for players entering the lobby. client: added text output for connection actions

components/client_interface.gd

@@ -11,6 +11,11 @@ extends Control
 @export var name_input: LineEdit
 @export var lobby_code_input: LineEdit
 
+@export var output: Label
+
+func _write_line(text: String) -> void:
+	output.text += text + "\n"
+
 func _on_create_lobby_button_pressed() -> void:
 	client.create_lobby(name_input.text.strip_edges())
 	
@@ -55,9 +60,15 @@ func _on_web_client_tcp_disconnected_from_server() -> void:
 	lobby_code_input.editable = false
 	lobby_code_input.text = ""
 
-
 func _on_web_client_tcp_connected_to_lobby(lobby_id: String) -> void:
 	lobby_code_input.text = lobby_id
+	_write_line("you connected to lobby {lobby_id}".format({"lobby_id": lobby_id}))
 
 func _on_web_client_tcp_disconnected_from_lobby() -> void:
-	pass # Replace with function body.
+	_write_line("you disconnected from the lobby")
+
+func _on_web_client_tcp_client_joined_lobby(client_name: String) -> void:
+	_write_line("{client_name} joined the lobby{you}".format({
+		"client_name": client_name,
+		"you": " (that's you!)" if client_name == name_input.text.strip_edges() else ""
+	}))

components/web_client_tcp.gd

@@ -22,6 +22,8 @@ signal disconnected_from_server()
 signal connected_to_lobby(lobby_id: String)
 signal disconnected_from_lobby()
 
+signal client_joined_lobby(client_name: String)
+
 func _process(delta: float) -> void:
 	_tcp.poll()
 	_new_status = _tcp.get_status()
@@ -60,6 +62,8 @@ func _handle_response(response: String) -> void:
 		"join_lobby":
 			if data["status"] == "ok":
 				connected_to_lobby.emit.call_deferred(_lobby_id)
+		"client_joined_lobby":
+			client_joined_lobby.emit.call_deferred(data["new_client_name"])
 
 func  _exit_tree() -> void:
 	disconnect_from_server()
@@ -96,6 +100,8 @@ func leave_lobby() -> void:
 	_lobby_id = ""
 	_client_id = ""
 	_client_name = ""
+	
+	disconnected_from_lobby.emit()
 
 func _send_message(message: String) -> void:
 	_tcp.put_data(message.to_utf8_buffer())

game.tscn

@@ -12,7 +12,7 @@ font_weight = 500
 [node name="WebClientTCP" type="Node" parent="."]
 script = ExtResource("1_feb5d")
 
-[node name="ClientInterface" type="Control" parent="." node_paths=PackedStringArray("client", "connect_button", "create_lobby_button", "join_lobby_button", "leave_lobby_button", "name_input", "lobby_code_input")]
+[node name="ClientInterface" type="Control" parent="." node_paths=PackedStringArray("client", "connect_button", "create_lobby_button", "join_lobby_button", "leave_lobby_button", "name_input", "lobby_code_input", "output")]
 layout_mode = 3
 anchors_preset = 15
 anchor_right = 1.0
@@ -27,6 +27,7 @@ join_lobby_button = NodePath("HBoxContainer/VBoxContainer/JoinLobbyButton")
 leave_lobby_button = NodePath("HBoxContainer/VBoxContainer/LeaveLobbyButton")
 name_input = NodePath("HBoxContainer/VBoxContainer/NameInput")
 lobby_code_input = NodePath("HBoxContainer/VBoxContainer/LobbyCodeInput")
+output = NodePath("HBoxContainer/Output")
 
 [node name="ColorRect" type="ColorRect" parent="ClientInterface"]
 layout_mode = 1
@@ -83,6 +84,7 @@ size_flags_vertical = 1
 theme_override_fonts/font = SubResource("SystemFont_80nbo")
 autowrap_mode = 2
 
+[connection signal="client_joined_lobby" from="WebClientTCP" to="ClientInterface" method="_on_web_client_tcp_client_joined_lobby"]
 [connection signal="connected_to_lobby" from="WebClientTCP" to="ClientInterface" method="_on_web_client_tcp_connected_to_lobby"]
 [connection signal="connected_to_server" from="WebClientTCP" to="ClientInterface" method="_on_web_client_tcp_connected_to_server"]
 [connection signal="connection_error_occurred" from="WebClientTCP" to="ClientInterface" method="_on_web_client_tcp_connection_error_occurred"]

server_tcp.py

@@ -63,6 +63,15 @@ class LobbyManager:
             connection,
         )
         print(f"Client {client_id} joined lobby {lobby_id}")
+
+        self.broadcast_message(
+            lobby_id,
+            json.dumps({
+                "response": "client_joined_lobby",
+                "new_client_id": client_id,
+                "new_client_name": client_name,
+            })
+        )
     
     def leave_lobby(self, lobby_id, client_id) -> None:
         try: