Draw Tool Script | ROBLOX

local plyr = game.Players.LocalPlayer
local c = plyr.Character
local RunService = game:service'RunService'
local mouse = game.Players.LocalPlayer:GetMouse()
local draw2 = false
local colorA = 1
local lastPos

local tool = Instance.new("HopperBin", plyr.Backpack)
tool.Name = "Draw"

function draw(obj)
    local lastPos = obj.CFrame.p
    coroutine.wrap(function()
        while wait() do
            if draw2 then
                while draw2 do
                    RunService.Stepped:wait()
                    objC = obj:Clone()
                    objC.Parent = c
                    objC.Anchored = true
                    local distance = (lastPos- obj.CFrame.p).magnitude
                    objC.Size = Vector3.new(.2,.2,distance)
                    objC.CFrame = CFrame.new(lastPos,obj.Position)*CFrame.new(0,0,-distance/2)
                    lastPos = obj.CFrame.p
                end
            else
                break
            end
        end
    end)
end

tool.Selected:Connect(function(mouse)
    mouse.Button1Down:Connect(function(mouse)
        part = Instance.new("Part", c)
        part.Name = "location"
        part.BottomSurface = 0
        part.TopSurface = 0
        part.BrickColor = BrickColor.Black()
        part.FormFactor = "Custom"
        part.Size = Vector3.new(0.2, 0.2, 0.2)
        part.Anchored = true
        part.Locked = true
        coroutine.wrap(function()
            while part ~= nil do
                part.CFrame = CFrame.new(plyr:GetMouse().Hit.p.x,plyr:GetMouse().Hit.p.y,plyr:GetMouse().Hit.p.z)
                RunService.Stepped:wait()
            end
        end)()
        draw(part)
        draw2 = true
    end)

    mouse.Button1Up:Connect(function(mouse)
        game:service'Debris':AddItem(part, 0)
        draw2 = false
        pcall(function()
            lastPos = nil
        end)
    end)
end)