Building Tools Made By Pizza

local player = game:GetService("Players").LocalPlayer
local mouse = player:GetMouse()
local userInputService = game:GetService("UserInputService")
local runService = game:GetService("RunService")

local tool = Instance.new("Tool")
tool.Name = "Building Tool"
tool.RequiresHandle = false
tool.Parent = player:WaitForChild("Backpack")

local selectedPart = nil
local mode = "move"
local gridSize = 1
local isDragging = false
local dragOffset = Vector3.new()
local equipped = false

local screenGui = Instance.new("ScreenGui")
screenGui.Name = "BuildingToolsGUI"
screenGui.ResetOnSpawn = false
screenGui.Parent = player:WaitForChild("PlayerGui")

local mainFrame = Instance.new("Frame")
mainFrame.Size = UDim2.new(0, 280, 0, 500)
mainFrame.Position = UDim2.new(0, 10, 0.5, -250)
mainFrame.BackgroundColor3 = Color3.fromRGB(40, 40, 40)
mainFrame.BorderSizePixel = 2
mainFrame.BorderColor3 = Color3.fromRGB(255, 255, 255)
mainFrame.Visible = false
mainFrame.Active = true
mainFrame.Draggable = true
mainFrame.Parent = screenGui

local mainCorner = Instance.new("UICorner")
mainCorner.CornerRadius = UDim.new(0, 10)
mainCorner.Parent = mainFrame

local titleLabel = Instance.new("TextLabel")
titleLabel.Size = UDim2.new(1, 0, 0, 40)
titleLabel.BackgroundColor3 = Color3.fromRGB(30, 30, 30)