BUILD STEAL HELPER

-- Client-only Block Builder with stacking support
-- Paste this LocalScript into StarterPlayerScripts

local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")
local TweenService = game:GetService("TweenService")
local ContextActionService = game:GetService("ContextActionService")

local LocalPlayer = Players.LocalPlayer
local Camera = workspace.CurrentCamera
local Mouse = LocalPlayer:GetMouse()

-- ===== Utilities =====
local function new(className, props)
    local obj = Instance.new(className)
    for k,v in pairs(props or {}) do obj[k] = v end
    return obj
end

local function hsvColor(h) return Color3.fromHSV(h%1, 0.8, 0.95) end
local function clamp(n, a, b) return (n < a and a) or (n > b and b) or n end
local function roundTo(v, snap) return math.floor((v + (snap * 0.5)) / snap) * snap end
local function roundVector(v, snap) return Vector3.new(roundTo(v.X, snap), roundTo(v.Y, snap), roundTo(v.Z, snap)) end

-- ===== Client folder for parts =====
local clientFolderName = "ClientBlocks_" .. LocalPlayer.Name
local clientFolder = workspace:FindFirstChild(clientFolderName) or new("Folder", {Name = clientFolderName, Parent = workspace})

-- ===== UI (compact) =====
local gui = new("ScreenGui", {Parent = LocalPlayer:WaitForChild("PlayerGui"), Name = "CompactBuildUI", ResetOnSpawn = false})
gui.IgnoreGuiInset = true

local frame = new("Frame", {
    Parent = gui,
    AnchorPoint = Vector2.new(1, 0),
    Position = UDim2.new(1, -12, 0, 12),
    Size = UDim2.new(0, 220, 0, 220),
    BackgroundColor3 = Color3.fromRGB(10,10,10),
    BorderSizePixel = 0