Rebirth

Lesson 15 of 18 in Coddy's Roblox Game: Factory Tycoon course.

A rebirth trades a finished factory for a fresh start and a permanent reward. Players chase it again and again: it is what keeps a tycoon going after the last pad.

Starting over means putting everything back: every built item into ServerStorage, and every bought pad where it began (for sale, or waiting if it has an After). That is why bought pads were moved, not destroyed: they now go to a folder, BoughtPads, so the reset can find them.

for _, item in tycoon.Built:GetChildren() do
	item.Parent = items
end

The reset will be needed again (when an owner leaves), so it is its own function, resetFactory(). The rebirth pad calls it, adds 1 to a new Rebirths stat and sets Cash back to 0. Droppers moved back to storage stop by themselves: their loop runs only while they are in the workspace.

Challenge

Hard

Add rebirths:

When a player joins, add an IntValue Rebirths to their leaderstats.
Make a BoughtPads Folder in ServerStorage (kept as bought), and move bought pads there instead of into ServerStorage itself.
Write resetFactory(): the rebirth pad back to ServerStorage, every built item back to items, every bought pad back to tycoon.Buttons (or waiting if it has an After).
When the owner steps on the rebirth pad while it is in the factory: reset, +1 Rebirths, Cash to 0, and the headline back to their name.

Press Play, finish and rebirth, 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 rebirthPad = ServerStorage.RebirthPad
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

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