1xKrjNS5

1--[ Variables ]--
2local playerService = game:GetService("Players");
3local coinsData = game:GetService("DataStoreService"):GetDataStore("CoinsData");
4
5--[[
6--	The function, saves the data for our player
7--	on the PlayerRemoved event.
8--
9--	@param {data-type} player | We pars the argument player as the parameter of our function.
10]]--
11function saveDataForThePlayer(player)
12	--[ Player unique Key ]--
13	local userId 		= ("PlayerKey_"..player.UserId);
14	
15	local data 			= {}; -- it'll be holding our values
16	
17	--[[ 
18	--	On this function we use `pcall()` a error handling function
19	--	that provides the Vanilla Lua (the Lua version that uses ROBLOX).
20	]]--
21	local succes, err = pcall(function()
22		for _, stat in pairs(player:WaitForChild("leaderstats"):GetChildren()) do
23			data[stat.Name] 		= stat.Value;
24		end
25		
26		-- we send a queue to our DataStore API so it can save the data for the player
27		coinsData:SetAsync(userId, data);
28	end)
29	
30	--[[ 
31	--	Error handling, if the succes is provided false then
32	--	we return the error and now we can obviously, fix it
33	]]--
34	if not succes and err then return err end
35end
36
37--[[
38--	This event listener, trigeers whenever a player joins the server
39--	we pars our parameter player as the player that has joined our server.
40]]--
41playerService.PlayerAdded:connect(function(player)
42	
43	--[ Player unique Key ]--
44	local userId 		= ("PlayerKey_"..player.UserId);
45	
46	--[ Folder creation ]--
47	local folder 		= Instance.new("Folder");
48	folder.Name 		= "leaderstats"; -- this will show on the leaderboard
49	folder.Parent 		= player;
50	
51	--[ Creating our values ]--
52	local currency 		= Instance.new("IntValue");
53	currency.Name		= "Coins";
54	currency.Parent		= folder;
55	
56	local data 			= coinsData:GetAsync(userId);
57	
58	--[[
59	--	Verifies if our player has data saved
60	--	if it's provided true, then it loads the data
61	--	else, creates a new data for our player.
62	]]--
63	if not data and data == nil then
64		print(player.Name.." doesn't has data saved, we are gonna create new one.");
65	elseif data and data ~= nil then
66		print(player.Name.." we are loading your data, dont worry!");
67		
68		--[[
69		--	We start changing the values of our currencies
70		--	to our current data saved.
71		]]--
72		for _, stat in pairs(folder:GetChildren()) do
73			stat.Value = data[stat.Name]
74		end
75	end
76end)
77
78--[[
79--	Event listener PlayerRemoved to actually save our player data
80--	after he leaves we queue the DataStore to save it.
81]]--
82playerService.PlayerRemoving:connect(function(player)
83	local err 		= saveDataForThePlayer(player);
84	if err then print(err) return end
85end)
86
87--[[
88--	Function :BindToClose() will save the Data of the player as a emergency if the game shutdown
89--	or just falls or something that cause the instan close of the game.
90]]--
91game:BindToClose(function()
92	
93	--[[
94	--	We start saving the data for all the player
95	--	that are connected to our Server.
96	--]]
97	for _, player in pairs(playerService:GetPlayers()) do
98		local err 		= saveDataForThePlayer(player)
99		if err then print(err) return end
100	end
101end)