Roblox give tool on touch script

-- Give tool on touch: copies a Tool from ServerStorage into the player's Backpack.

local TOOL_NAME = "Sword"    -- the name of a Tool inside ServerStorage
local COOLDOWN = 2           -- seconds before the same player can be checked again

local Players = game:GetService("Players")
local ServerStorage = game:GetService("ServerStorage")

local part = script.Parent
local tool = ServerStorage:WaitForChild(TOOL_NAME)
local busy = {}

local function playerHasTool(player)
	local backpack = player:FindFirstChildOfClass("Backpack")
	if backpack and backpack:FindFirstChild(TOOL_NAME) then
		return true
	end
	local character = player.Character
	if character and character:FindFirstChild(TOOL_NAME) then
		return true
	end
	return false
end

part.Touched:Connect(function(hit)
	local player = Players:GetPlayerFromCharacter(hit.Parent)
	if not player or busy[player] then
		return
	end

	busy[player] = true

	if not playerHasTool(player) then
		local backpack = player:FindFirstChildOfClass("Backpack")
		if backpack then
			tool:Clone().Parent = backpack
		end
	end

	task.wait(COOLDOWN)
	busy[player] = nil
end)