feat: Implement Stop N Go game mode with phase management, mission objectives, and visual HUD elements.

scripts/nakama_manager.gd

@@ -75,6 +75,10 @@ func connect_to_nakama_async(email: String = "", password: String = "") -> bool:
 
 	# 3. Initialize Multiplayer Bridge
 	# This links Nakama's socket to Godot's High-Level Multiplayer API
+	if bridge:
+		bridge.leave()
+		bridge = null
+		
 	bridge = NakamaMultiplayerBridge.new(socket)
 	
 	# Connect bridge signals
@@ -89,6 +93,26 @@ func connect_to_nakama_async(email: String = "", password: String = "") -> bool:
 	emit_signal("connected_to_nakama")
 	return true
 
+func cleanup():
+	"""Properly shutdown the Nakama connection and reset the multiplayer peer."""
+	print("[NakamaManager] Full cleanup starting...")
+	
+	if bridge:
+		bridge.leave()
+		bridge = null
+	
+	if socket:
+		socket.close()
+		socket = null
+	
+	current_match_id = ""
+	
+	# Reset Godot's multiplayer peer
+	if multiplayer.get_multiplayer_peer():
+		multiplayer.set_multiplayer_peer(null)
+	
+	print("[NakamaManager] Cleanup complete.")
+
 # --- Match Management ---
 
 func host_game():
@@ -172,5 +196,4 @@ func list_matches_async() -> Array:
 	return rooms
 
 func _exit_tree():
-	if socket:
-		socket.close()
+	cleanup()