21/08/02 Roblox Studio Tutorial: How to Save Data

https://youtu.be/-wAJAI95ivs

 

References

https://developer.roblox.com/en-us/articles/Data-store

Data Stores

https://developer.roblox.com/en-us/onboarding/intro-to-saving-data

Introduction to Saving Data

- ServerScriptService

```

local DataStoreService = game:GetService("DataStoreService")

local playerData = DataStoreService:GetDataStore("PlayerData")

 

local function onPlayerJoin(player)  -- Runs when players join

    local leaderstats = Instance.new("Folder")  --Sets up leaderstats folder

    leaderstats.Name = "leaderstats"

    leaderstats.Parent = player

 

    local gold = Instance.new("IntValue") --Sets up value for leaderstats

    gold.Name = "Gold"

    gold.Parent = leaderstats

 

    local playerUserId = "Player_" .. player.UserId  --Gets player ID

    local data = playerData:GetAsync(playerUserId)  --Checks if player has stored data

    if data then

        -- Data exists for this player

        gold.Value = data

    else

        -- Data store is working, but no current data for this player

        gold.Value = 0

    end

end

 

local function onPlayerExit(player)  --Runs when players exit

    local success, err = pcall(function()

        local playerUserId = "Player_" .. player.UserId

        playerData:SetAsync(playerUserId, player.leaderstats.Gold.Value) --Saves player data

    end)

 

    if not success then

        warn('Could not save data!')

    end

end

 

game.Players.PlayerAdded:Connect(onPlayerJoin)

game.Players.PlayerRemoving:Connect(onPlayerExit)

```

 

-- Storing More Values

```

local DataStoreService = game:GetService("DataStoreService")

local playerData = DataStoreService:GetDataStore("PlayerData")

 

local function onPlayerJoin(player)  -- Runs when players join

    local leaderstats = Instance.new("Folder")  --Sets up leaderstats folder

    leaderstats.Name = "leaderstats"

    leaderstats.Parent = player

 

    local money = Instance.new("IntValue") --Sets up value for leaderstats

    money.Name = "Money"

    money.Parent = leaderstats

 

    local exp = Instance.new("IntValue") --Sets up value for leaderstats

    exp.Name = "Experience"

    exp.Parent = leaderstats

 

    local playerUserId = "Player_" .. player.UserId  --Gets player ID

    local data = playerData:GetAsync(playerUserId)  --Checks if player has stored data

    if data then

        money.Value = data['Money']

        exp.Value = data['Experience']

    else

        -- Data store is working, but no current data for this player

        money.Value = 0

        exp.Value = 0

    end

end

 

local function create_table(player)

    local player_stats = {}

    for _, stat in pairs(player.leaderstats:GetChildren()) do

        player_stats[stat.Name] = stat.Value

    end

    return player_stats

end

 

local function onPlayerExit(player)  --Runs when players exit

    local player_stats = create_table(player)

    local success, err = pcall(function()

        local playerUserId = "Player_" .. player.UserId

        playerData:SetAsync(playerUserId, player_stats) --Saves player data

    end)

    if not success then

        warn('Could not save data!')

    end

end

 

game.Players.PlayerAdded:Connect(onPlayerJoin)

game.Players.PlayerRemoving:Connect(onPlayerExit)

```