do some changes with XLib and started working on main menu

addons/xlib/scripts/GameSaveResource.gd

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+class_name GameSaveResource extends Resource
+
+@export var stored_scenes: Array[PackedScene] = []
+@export var stored_player: PackedScene
+@export var stored_hotbar: HotbarResource # Holds your active items

addons/xlib/scripts/GameSaveResource.gd.uid

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+uid://i5d1qc430pfd

addons/xlib/scripts/Save.gd

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+extends Node
+
+func saveGameData(file_name: String):
+	var save_data = GameSaveResource.new()
+	var objects_container = get_node_or_null("/root/World/objects")
+	if objects_container:
+		for object in objects_container.get_children():
+			for child in object.get_children():
+				child.owner = object
+			var packed_node = PackedScene.new()
+			if packed_node.pack(object) == OK:
+				save_data.stored_scenes.append(packed_node)
+	var player_node = get_node_or_null("/root/World/PlayerController")
+	if player_node:
+		var hotbar_control = player_node.get_node_or_null("Camera3D/CanvasLayer/HotBar")
+		if hotbar_control and "hotbar" in hotbar_control:
+			save_data.stored_hotbar = hotbar_control.hotbar.duplicate(true)
+		for child in player_node.get_children():
+			child.owner = player_node
+		var packed_player = PackedScene.new()
+		if packed_player.pack(player_node) == OK:
+			save_data.stored_player = packed_player
+	var full_path = "user://" + file_name
+	var save_result = ResourceSaver.save(save_data, full_path)
+	if save_result == OK:
+		print("Successfully saved all nodes and items to: ", full_path)
+
+
+func loadGameData(file_name: String):
+	var full_path = "user://" + file_name
+	if not ResourceLoader.exists(full_path):
+		print("Error: Save file '", full_path, "' does not exist.")
+		return
+	var save_data = ResourceLoader.load(full_path) as GameSaveResource
+	if not save_data:
+		print("Error: Could not parse save file.")
+		return
+	var objects_node = get_node_or_null("/root/World/objects")
+	if objects_node:
+		for child in objects_node.get_children():
+			child.queue_free()
+		for packed_node in save_data.stored_scenes:
+			if packed_node:
+				objects_node.add_child(packed_node.instantiate())
+	if save_data.stored_player:
+		var current_player = get_node_or_null("/root/World/PlayerController")
+		if current_player:
+			var player_parent = current_player.get_parent()
+			var restored_player = save_data.stored_player.instantiate()
+			restored_player.name = "PlayerController_New"
+			var hotbar_control = restored_player.get_node_or_null("Camera3D/CanvasLayer/HotBar")
+			if hotbar_control and save_data.stored_hotbar:
+				hotbar_control.hotbar = save_data.stored_hotbar.duplicate(true)
+			player_parent.add_child(restored_player)
+			current_player.queue_free() 
+			await get_tree().process_frame
+			if is_instance_valid(restored_player):
+				restored_player.name = "PlayerController"
+				var final_hotbar = restored_player.get_node_or_null("Camera3D/CanvasLayer/HotBar")
+				if final_hotbar and final_hotbar.has_method("updateHotbar"):
+					final_hotbar.updateHotbar(final_hotbar.hotbar)
+			print("Player and inventory data successfully restored!")
+	print("Successfully reloaded game state from disk!")

addons/xlib/scripts/Save.gd.uid

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+uid://bxo4gihn43kx