每个购买台

Coddy Roblox 游戏：工厂大亨课程的第 10 课，共 22 课。

还剩 4 个垫子。要是把购买代码复制 4 遍，就意味着每次修复错误都要修复 4 次。一个函数就能处理所有垫子：每个垫子的 Item 属性会指定它购买的物品，而 items:FindFirstChild(name) 会找到该物品。

local function buy(pad, player)
	-- 检查和价格部分与之前一样
	build(items:FindFirstChild(pad:GetAttribute("Item")))
end

第二个函数 build(item) 会将物品放入工厂，并在物品是投放器时启动它（它带有 Dropper 标签）。墙壁、雕像和升级器也用同样的方式建造，只有投放器会启动。

挑战

中等

让每个按钮都通过同一个函数运行。

编写 build(item)：将物品移入 tycoon.Built，如果 item:HasTag("Dropper")，就启动它。
编写 buy(pad, player)：像之前一样进行检查并处理价格，然后将按钮移到 ServerStorage，并创建其 Item 属性所命名的物品。
不要使用 Dropper2Pad 代码，而是将 tycoon.Buttons 中每个按钮的 Touched 事件连接到 buy。

按“开始”：每个你买得起的按钮都会创建对应的物品。然后按“检查”。

亲手试试

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

local tycoon = workspace.Tycoon
local items = ServerStorage.TycoonItems
local owner = nil

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

-- 每位玩家都会在排行榜上获得 Cash
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)

-- 工厂上方的标牌
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：从 dropper 下方掉落的小部件，可换取 Cash
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

local function startDropper(dropper)
	task.spawn(function()
		while dropper:IsDescendantOf(workspace) do
			dropOre(dropper)
			task.wait(Settings.DropInterval)
		end
	end)
end

-- 传送带会运送放在上面的物品
tycoon.Conveyor.AssemblyLinearVelocity = Vector3.new(Settings.BeltSpeed, 0, 0)

-- 收集器会将矿石转换成 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
		end
	end
end)

-- 购买第二个 dropper 的踏板
local pad = tycoon.Buttons.Dropper2Pad
pad.Touched:Connect(function(hit)
	local player = Players:GetPlayerFromCharacter(hit.Parent)
	if not player or 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
		cash.Value -= price
		pad.Parent = ServerStorage
		local dropper = items.Dropper2
		dropper.Parent = tycoon.Built
		startDropper(dropper)
	end
	-- 第 10 课：所有 Pad 都放在这里
end)

-- 每个踏板上方都悬浮着价格标签
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

-- 认领：第一个踩上踏板的玩家将拥有工厂
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
		setSign(player.Name .. "'s Factory")
		for _, dropper in CollectionService:GetTagged("Dropper") do
			if dropper:IsDescendantOf(workspace) then
				startDropper(dropper)
			end
		end
	end
end)