feat: add Stop n Go game mode with new arena, assets, and manager script.

scenes/main.gd

@@ -21,6 +21,12 @@ var portal_mode_manager
 var _connection_check_timer: float = 0.0
 var reserved_static_positions: Array[Vector2i] = []
 
+func _can_rpc() -> bool:
+	if not is_inside_tree(): return false
+	if not multiplayer.has_multiplayer_peer(): return false
+	if multiplayer.multiplayer_peer.get_class() == "OfflineMultiplayerPeer": return false
+	if multiplayer.multiplayer_peer.get_connection_status() != MultiplayerPeer.CONNECTION_CONNECTED: return false
+	return true
 
 func _ready():
 	# Initialize scene managers
@@ -93,7 +99,7 @@ func _setup_multiplayer_spawners():
 func _apply_arena_background():
 	var arena_bg = get_node_or_null("ArenaBG")
 		
-	var selected_area = LobbyManager.get_selected_area()
+	var selected_area = LobbyManager.selected_area
 	var texture_path = ""
 	
 	match selected_area:
@@ -1411,10 +1417,10 @@ func request_full_player_sync(requesting_peer_id: int):
 					"name": player.display_name,
 					"goals": player.goals,
 					"playerboard": player.playerboard,
-					"is_bot": player.is_bot || player.is_in_group("Bots"),
 					"spawn_point_selected": player.spawn_point_selected
 				}
-				rpc_id(requesting_peer_id, "create_specific_player", player_data)
+				if _can_rpc():
+					rpc_id(requesting_peer_id, "create_specific_player", player_data)
 				await get_tree().create_timer(0.1).timeout
 
 @rpc("reliable")

scenes/player.gd

@@ -33,7 +33,9 @@ var display_name: String:
 
 # Helper to check network status
 func can_rpc() -> bool:
-	return multiplayer.has_multiplayer_peer() and multiplayer.multiplayer_peer.get_connection_status() == MultiplayerPeer.CONNECTION_CONNECTED
+	if not multiplayer.has_multiplayer_peer(): return false
+	if multiplayer.multiplayer_peer.get_class() == "OfflineMultiplayerPeer": return false
+	return multiplayer.multiplayer_peer.get_connection_status() == MultiplayerPeer.CONNECTION_CONNECTED
 	
 # Special effect states
 var is_frozen: bool = false
@@ -1131,7 +1133,8 @@ func _physics_process(delta):
 			# Use a slightly larger threshold (0.05) to ignore micro-vibrations
 			if current_world_pos.distance_to(last_sent_pos) > 0.05:
 				set_meta("_last_sent_pos", current_world_pos)
-				rpc("remote_set_position", current_world_pos, Time.get_ticks_msec())
+				if can_rpc():
+					rpc("remote_set_position", current_world_pos, Time.get_ticks_msec())
 		
 		# NOTE: Finish line checking removed - game uses cycle-based goals system now