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

scripts/bot_controller.gd

@@ -195,6 +195,9 @@ func _run_ai_tick():
 			print("[BotController] Action Taken: Put")
 			return
 
+	if not is_instance_valid(actor):
+		return
+		
 	var goals_achv = _is_goals_achieved()
 	
 	if actor.action_points > 1: # Only print if they have multi-AP
@@ -256,7 +259,7 @@ func _try_use_powerup() -> bool:
 		NotificationManager.send_message(actor, NotificationManager.MESSAGES.USED_SPECIAL_POWER, NotificationManager.MessageType.POWERUP)
 	
 	await _wait_with_variance(action_delay)
-	if not is_instance_valid(self): return true # Early exit if deleted
+	if not is_instance_valid(actor) or not is_instance_valid(self): return true # Early exit if deleted
 	
 	_is_processing_action = false
 	_current_action = "idle"
@@ -301,7 +304,7 @@ func _try_attack_chase() -> bool:
 			_is_processing_action = true
 			_current_action = "attacking"
 			await _wait_with_variance(action_delay) # Shorter delay for attacks? perhaos
-			if not is_instance_valid(self): return true
+			if not is_instance_valid(self) or not is_instance_valid(actor): return true
 			_is_processing_action = false
 			_current_action = "idle"
 			return true
@@ -365,7 +368,7 @@ func _try_grab() -> bool:
 		
 		# Wait for animation
 		await _wait_with_variance(action_delay)
-		if not is_instance_valid(self): return true
+		if not is_instance_valid(self) or not is_instance_valid(actor): return true
 		_is_processing_action = false
 		_current_action = "idle"
 		return true
@@ -466,17 +469,19 @@ func _try_move() -> bool:
 		var max_wait_time = 2.0
 		var elapsed = 0.0
 		
-		while actor.is_player_moving and is_instance_valid(self):
+		while is_instance_valid(actor) and actor.is_player_moving and is_instance_valid(self):
 			await get_tree().process_frame
 			elapsed += get_process_delta_time()
 			if elapsed > max_wait_time:
-				print("[BotController] %s movement TIMEOUT after %.1fs" % [actor.name, elapsed])
+				if is_instance_valid(actor):
+					print("[BotController] %s movement TIMEOUT after %.1fs" % [actor.name, elapsed])
 				break
 			
-		if not is_instance_valid(self): return true
+		if not is_instance_valid(self) or not is_instance_valid(actor): return true
 		_is_processing_action = false
 		_current_action = "idle"
-		print("[BotController] %s move finished. New Pos: %s" % [actor.name, actor.current_position])
+		if is_instance_valid(actor):
+			print("[BotController] %s move finished. New Pos: %s" % [actor.name, actor.current_position])
 		return true
 	else:
 		print("[BotController] %s simple_move_to BLOCKED (others). Trying unstuck move." % actor.name)
@@ -515,15 +520,16 @@ func _try_unstuck_move() -> bool:
 			# Proper wait for movement completion
 			var max_wait = 1.5
 			var elapsed = 0.0
-			while actor.is_player_moving and is_instance_valid(self):
+			while is_instance_valid(actor) and actor.is_player_moving and is_instance_valid(self):
 				await get_tree().process_frame
 				elapsed += get_process_delta_time()
 				if elapsed > max_wait: break
 				
-			if not is_instance_valid(self): return true
+			if not is_instance_valid(self) or not is_instance_valid(actor): return true
 			_is_processing_action = false
 			_current_action = "idle"
-			print("[BotController] %s Unstuck move finished at %s" % [actor.name, actor.current_position])
+			if is_instance_valid(actor):
+				print("[BotController] %s Unstuck move finished at %s" % [actor.name, actor.current_position])
 			return true
 			
 	return false
@@ -580,7 +586,7 @@ func _try_put(high_priority: bool = false) -> bool:
 		print("[BotController] %s put unneeded tile %d at %s (Panic: %s)" % [actor.name, item, put_position, is_panic])
 	
 	await _wait_with_variance(action_delay)
-	if not is_instance_valid(self): return true
+	if not is_instance_valid(actor) or not is_instance_valid(self): return true
 	_is_processing_action = false
 	_current_action = "idle"
 	return true
@@ -631,7 +637,7 @@ func _try_arrange() -> bool:
 		print("[BotController] %s arranged slot %d -> %d" % [actor.name, arrangement.source_slot, arrangement.target_slot])
 	
 	await _wait_with_variance(action_delay)
-	if not is_instance_valid(self): return true
+	if not is_instance_valid(actor) or not is_instance_valid(self): return true
 	_is_processing_action = false
 	_current_action = "idle"
 	return true

scripts/managers/lobby_manager.gd

@@ -120,6 +120,9 @@ func refresh_room_list() -> void:
 
 func set_ready(is_ready: bool) -> void:
 	"""Set local player's ready state."""
+	if not multiplayer.has_multiplayer_peer():
+		return
+		
 	var my_id = multiplayer.get_unique_id()
 	
 	# Update local state
@@ -248,6 +251,10 @@ func set_character(character_name: String) -> void:
 		return
 	
 	local_character_index = idx
+	
+	if not multiplayer.has_multiplayer_peer():
+		return
+		
 	var my_id = multiplayer.get_unique_id()
 	
 	# Update local player data
@@ -289,6 +296,11 @@ func sync_character(player_id: int, character_name: String) -> void:
 func set_player_name(new_name: String) -> void:
 	"""Set local player's name. Syncs to all peers."""
 	local_player_name = new_name
+	
+	if not multiplayer.has_multiplayer_peer():
+		emit_signal("player_list_changed")
+		return
+		
 	var my_id = multiplayer.get_unique_id()
 	
 	# Update local player data
@@ -412,6 +424,9 @@ func _on_match_joined(match_id: String) -> void:
 	var short_id = match_id.substr(0, 8) if match_id.length() > 8 else match_id
 	current_room["room_name"] = short_id
 	
+	if not multiplayer.has_multiplayer_peer():
+		return
+		
 	# Add self to player list
 	var my_id = multiplayer.get_unique_id()
 	var my_data = {

scripts/managers/stop_n_go_manager.gd

@@ -11,7 +11,7 @@ enum Phase {GO, STOP}
 
 const GO_DURATION: float = 8.0
 const STOP_DURATION: float = 4.0
-const REQUIRED_GOALS: int = 8
+const REQUIRED_GOALS: int = 1
 
 var current_phase: Phase = Phase.GO
 var phase_timer: float = GO_DURATION

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()