Skip Stages developer products not working properly

[glycago (jjl)]

Hi, I have two developer products in my obby game which allows a player to skip a single stage and one that lets the player skip to the end. Both products work normally, but after the player rebirths(restarts the obby at stage 1) whenever the skip stage is purchased the player skips to the end of the obby instead of skipping a single stage.

Here is my server script where the receipts are processed

local MPS = game:GetService("MarketplaceService")
local skipId = --skip stage Id
local steId = --skip to end Id

MPS.ProcessReceipt = function(receiptInfo)
	if receiptInfo.ProductId == skipId then
		local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
		player.Character.HumanoidRootPart.CFrame = game.Workspace.Checkpoints:WaitForChild(tonumber(player.leaderstats.Stage.Value)).CFrame + Vector3.new(0,3,0)
	end
	
	if receiptInfo.Id == steId  then
		local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
		player.Character.HumanoidRootPart.CFrame = game.Workspace.Checkpoints:FindFirstChild("24").CFrame + Vector3.new(0,3,0)
		player.leaderstats.Stage.Value = 25
	end
end

Any help would be greatly appreciated!

[Doomcolp (dxxmed)]

@glycago

if receiptInfo.ProductId

and

@glycago

if receiptInfo.Id == steId

Why is one referenced as “ProductId” and the other one is “Id”?

@glycago

game.Workspace.Checkpoints:WaitForChild(tonumber(player.leaderstats.Stage.Value)).CFrame + Vector3.new(0,3,0)

Not required but I’d advise that you add an if statement if it fails for some reason.

And could you should the hierarchy of the “Checkpoints” (folder?)

Basically take a screenshot of the Explorer

[glycago (jjl)]

[12345koip]

Are you setting the player’s stage server-side when they rebirth? I’d recommend using an IntValue to control the stage value.

Also, as @Doomcolp said, it could fail. I’d recommend using the method in the Roblox Creator Documentation, which handles errors. You can find it here, you just need to scroll down a bit.

[glycago (jjl)]

Yes, the player’s stage is reset server-side when they rebirth. Also I am already using an IntValue for the stage value. I’ll check out the documentation then get back to you. I don’t know if this helps but the stage value is set to 1 at the start of the obby, so when the player purchases the skip stage product, they are teleported to stage 2(which is the 1st checkpoint)

[Katrist]

That’s not how .ProcessReciept is supposed to be used. It’s supposed to return a status.

Follow Roblox’s tutorial on it, and you will get this code:

local MarketplaceService = game:GetService("MarketplaceService")
local Players = game:GetService("Players")

local productFunctions = {}

-- Product ID 123456 skips stage
productFunctions[123456] = function(receipt, player)
	local leaderstats = player:FindFirstChild("leaderstats")
	local stage = leaderstats and leaderstats:FindFirstChild("Stage")
	
	if stage and stage.Value < 25 then
		stage.Value += 1
		pcall(player.LoadCharacter, player)
		
		return true
	end
end

-- Product ID 456456 skips to the end
productFunctions[456456] = function(receipt, player)
	local leaderstats = player:FindFirstChild("leaderstats")
	local stage = leaderstats and leaderstats:FindFirstChild("Stage")

	if stage and stage.Value ~= 25 then
		stage.Value = 25
		pcall(player.LoadCharacter, player)

		return true
	end
end

local function processReceipt(receiptInfo)
	local userId = receiptInfo.PlayerId
	local productId = receiptInfo.ProductId

	local player = Players:GetPlayerByUserId(userId)
	if player then
		-- Get the handler function associated with the developer product ID and attempt to run it
		local handler = productFunctions[productId]
		local success, result = pcall(handler, receiptInfo, player)
		if success then
			-- The user has received their benefits
			-- Return "PurchaseGranted" to confirm the transaction
			return Enum.ProductPurchaseDecision.PurchaseGranted
		else
			warn("Failed to process receipt:", receiptInfo, result)
		end
	end

	-- The user's benefits couldn't be awarded
	-- Return "NotProcessedYet" to try again next time the user joins
	return Enum.ProductPurchaseDecision.NotProcessedYet
end

-- Set the callback; this can only be done once by one server-side script
MarketplaceService.ProcessReceipt = processReceipt

[glycago (jjl)]

Thanks, it worked! I’ll have a look at the documentation to understand it better.