Menu
CoddyTech

Factory Complete

Lesson 14 of 18 in Coddy's Roblox Game: Factory Tycoon course.

A tycoon needs an ending, or at least a summit. When the last pad is bought (no pads left for sale and none waiting), the factory is complete: the sign says so, and a purple rebirth pad appears in the corner. It waits in ServerStorage until then.

#folder:GetChildren() counts what is in a folder, so the check is two counts:

if #tycoon.Buttons:GetChildren() == 0 and #waiting:GetChildren() == 0 then
	headline = "Factory complete! Step on the purple pad to rebirth"
	rebirthPad.Parent = tycoon
end

build runs this check after every item, so it happens the moment the last one is built.

challenge icon

Challenge

Hard

Finish the factory:

  1. Keep local rebirthPad = ServerStorage.RebirthPad near the top.
  2. Write checkComplete(): when no pads are for sale and none are waiting, set the headline to Factory complete! Step on the purple pad to rebirth, show it, and move the rebirth pad into tycoon.
  3. Call it at the end of build.

Press Play and build everything, then Check.

Try it yourself

local Players = game:GetService("Players")
local ServerStorage = game:GetService("ServerStorage")
local CollectionService = game:GetService("CollectionService")
local TweenService = game:GetService("TweenService")
local Debris = game:GetService("Debris")
local Settings = require(game.ReplicatedStorage.Settings)

local tycoon = workspace.Tycoon
local items = ServerStorage.TycoonItems
local owner = nil
local headline = "Step on the green pad to claim this factory"
local earned = 0

print("Ore is worth " .. Settings.OreValue .. " Cash")

-- Every player gets Cash on the leaderboard
Players.PlayerAdded:Connect(function(player)
	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"
	leaderstats.Parent = player

	local cash = Instance.new("IntValue")
	cash.Name = "Cash"
	cash.Parent = leaderstats
end)

-- The sign above the factory
local gui = Instance.new("SurfaceGui")
gui.Parent = tycoon.Sign

local signLabel = Instance.new("TextLabel")
signLabel.Name = "Status"
signLabel.Size = UDim2.fromScale(1, 1)
signLabel.BackgroundColor3 = Color3.fromRGB(25, 25, 35)
signLabel.TextColor3 = Color3.fromRGB(255, 255, 255)
signLabel.TextScaled = true
signLabel.Text = "Step on the green pad to claim this factory"
signLabel.Parent = gui

local function setSign(text)
	signLabel.Text = text
end

-- Ore: a small part worth Cash, dropped under a dropper
local function dropOre(dropper)
	local ore = Instance.new("Part")
	ore.Name = "Ore"
	ore.Size = Vector3.new(1, 1, 1)
	ore.Color = Color3.fromRGB(150, 150, 160)
	ore.Position = dropper.Position - Vector3.new(0, 2.5, 0)
	ore:SetAttribute("Value", Settings.OreValue)
	if math.random() < Settings.GoldChance then
		ore.Color = Color3.fromRGB(255, 200, 40)
		ore.Material = Enum.Material.Neon
		ore:SetAttribute("Value", Settings.OreValue * 5)
	end
	ore.Parent = workspace
	Debris:AddItem(ore, 20)
end

-- A dropper runs one loop, however often it is started
local function startDropper(dropper)
	if dropper:GetAttribute("Running") then
		return
	end
	dropper:SetAttribute("Running", true)
	task.spawn(function()
		while dropper:IsDescendantOf(workspace) do
			dropOre(dropper)
			task.wait(Settings.DropInterval)
		end
		dropper:SetAttribute("Running", nil)
	end)
end

-- The conveyor carries whatever rests on it
tycoon.Conveyor.AssemblyLinearVelocity = Vector3.new(Settings.BeltSpeed, 0, 0)

-- The collector turns ore into Cash
tycoon.Collector.Touched:Connect(function(hit)
	if hit.Name == "Ore" then
		local value = hit:GetAttribute("Value")
		hit:Destroy()
		if owner then
			owner.leaderstats.Cash.Value += value
			earned += value
		end
	end
end)

-- The upgrader doubles each ore that passes through it, once
items.Upgrader.Touched:Connect(function(hit)
	if hit.Name == "Ore" and not hit:GetAttribute("Upgraded") then
		hit:SetAttribute("Upgraded", true)
		hit:SetAttribute("Value", hit:GetAttribute("Value") * 2)
		hit.Color = Color3.fromRGB(155, 89, 182)
	end
end)

-- Pads that wait for an item to be built first
local waiting = Instance.new("Folder")
waiting.Name = "WaitingPads"
waiting.Parent = ServerStorage

-- A new part rises into place
local function riseIn(part)
	local goal = part.Position
	local transparency = part.Transparency
	part.Position = goal - Vector3.new(0, 8, 0)
	part.Transparency = 1
	TweenService:Create(part, TweenInfo.new(1), { Position = goal, Transparency = transparency }):Play()
end

-- Put a bought item in the factory
local function build(item)
	item.Parent = tycoon.Built
	if item:IsA("BasePart") then
		riseIn(item)
	end
	for _, part in item:GetDescendants() do
		if part:IsA("BasePart") then
			riseIn(part)
		end
	end
	if item:HasTag("Dropper") then
		-- start dropping once it is in place
		task.delay(1, startDropper, item)
	end
	for _, pad in waiting:GetChildren() do
		if pad:GetAttribute("After") == item.Name then
			pad.Parent = tycoon.Buttons
		end
	end
end

-- Buying: the pad goes away and its item is built
local function buy(pad, player)
	if player ~= owner or pad.Parent ~= tycoon.Buttons then
		return
	end
	local cash = player.leaderstats.Cash
	local price = pad:GetAttribute("Price")
	if cash.Value < price then
		return
	end
	cash.Value -= price
	pad.Parent = ServerStorage
	build(items:FindFirstChild(pad:GetAttribute("Item")))
end

for _, pad in tycoon.Buttons:GetChildren() do
	pad.Touched:Connect(function(hit)
		local player = Players:GetPlayerFromCharacter(hit.Parent)
		if player then
			buy(pad, player)
		end
	end)
end

-- A price tag floats over every pad
for _, pad in tycoon.Buttons:GetChildren() do
	local tag = Instance.new("BillboardGui")
	tag.Name = "PriceTag"
	tag.Size = UDim2.fromOffset(160, 40)
	tag.StudsOffset = Vector3.new(0, 3, 0)
	tag.Parent = pad

	local label = Instance.new("TextLabel")
	label.Size = UDim2.fromScale(1, 1)
	label.BackgroundColor3 = Color3.fromRGB(25, 25, 35)
	label.BackgroundTransparency = 0.2
	label.TextColor3 = Color3.fromRGB(255, 255, 255)
	label.TextScaled = true
	label.Text = pad:GetAttribute("Label") .. ": $" .. pad:GetAttribute("Price")
	label.Parent = tag
end

-- Only the first pads show at the start
for _, pad in tycoon.Buttons:GetChildren() do
	if pad:GetAttribute("After") then
		pad.Parent = waiting
	end
end

-- The sign shows the owner's income, every 5 seconds
task.spawn(function()
	while true do
		task.wait(5)
		if owner then
			setSign(headline .. "\n$" .. math.floor(earned / 5) .. " a second")
		end
		earned = 0
	end
end)

-- Claiming: the first player to step on the pad owns the factory
local claimPad = tycoon.ClaimPad
claimPad.Touched:Connect(function(hit)
	local player = Players:GetPlayerFromCharacter(hit.Parent)
	if player and not owner then
		owner = player
		claimPad.Color = Color3.fromRGB(120, 120, 120)
		claimPad.Material = Enum.Material.SmoothPlastic
		headline = player.Name .. "'s Factory"
		setSign(headline)
		for _, dropper in CollectionService:GetTagged("Dropper") do
			if dropper:IsDescendantOf(workspace) then
				startDropper(dropper)
			end
		end
	end
end)
quiz iconTest yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Roblox Game: Factory Tycoon