Bridge tool

me = game.Players.LocalPlayer
h = Instance.new("HopperBin")
h.Parent = me.Backpack
h.Name = "Bridge Tool"
bridges = {}
hold = false
using = false
holdkey = false
polesize = 5
function selected(mouse, key)
    mouse.Button1Down:connect(function()
        if mouse.Target == nil then return end
        if using == true then return end
        using = true
        hold = true
        pos = mouse.Hit.p
        p = Instance.new("Part")
        p.Parent = workspace
        p.formFactor = 0
        p.Size = Vector3.new(5,1,1)
        p.Anchored = true
        p.Transparency = 0.6
        p.TopSurface = 0
        p.BrickColor = BrickColor.new("Brown")
        p.BottomSurface = 0
        p.CFrame = CFrame.new(pos)
        mes = Instance.new("SpecialMesh")
        mes.Parent = p
        mes.MeshType = "Brick"
        mes.Scale = Vector3.new(1,1,1)
        table.insert(bridges, p)
        mouse.Move:connect(function()
            if mouse.Target == nil then return end
            if hold == true then
                local dist = (p.Position - mouse.Hit.p).magnitude
                p.CFrame = CFrame.new((mouse.Hit.p + pos)/2, pos)
                mes.Scale = Vector3.new(1,1,dist*2)
            end
        end)
    end)
    mouse.Button1Up:connect(function()
        hold = false
        local duh = p.CFrame
        p.Size = Vector3.new(5,1,mes.Scale.Z)
        p.CFrame = duh
        mes:remove()
        for i=1, 5 do
            wait()
            p.Transparency = p.Transparency - 0.12
        end
        p.Material = "Wood"
        using = false
    end)
    mouse.KeyDown:connect(function(key)
        key = key:lower()
        if (key == "r") then
            for i=1, #bridges do
                bridges[i]:remove()
            end
        elseif (key == "q") then
            polesize = polesize - 1
            local ms = Instance.new("Message")
            ms.Parent = me
            ms.Text = "Pole size decreased to "..polesize
            wait(0.4)
            ms:remove()
        elseif (key == "e") then
            polesize = polesize + 1
            local ms = Instance.new("Message")
            ms.Parent = me
            ms.Text = "Pole size increased to "..polesize
            wait(0.4)
            ms:remove()
        elseif (key == "f") then
            if mouse.Target == nil then return end
            if using == true then return end
            using = true
            holdkey = true
            po = Instance.new("Part")
            po.Parent = workspace
            po.formFactor = 0
            po.Size = Vector3.new(1,1,1)
            po.Anchored = true
            po.Transparency = 0.5
            po.TopSurface = 0
            po.BrickColor = BrickColor.new("Brown")
            po.BottomSurface = 0
            mesh = Instance.new("SpecialMesh")
            mesh.Parent = po
            mesh.Scale = Vector3.new(1,polesize,1)
            po.CFrame = CFrame.new(mouse.Hit.p.X, mouse.Hit.p.Y + mesh.Scale.Y/2, mouse.Hit.p.Z)
            table.insert(bridges,po)
        end
    end)
    mouse.KeyUp:connect(function(key)
        key = key:lower()
        if (key == "f") then
            holdkey = false
            for i=1, 5 do
                wait()
                po.Transparency = po.Transparency - 0.1
            end
            local posi = po.CFrame
            po.Material = "Wood"
            po.Size = mesh.Scale
            mesh:remove()
            po.CFrame = posi
            using = false
        end
    end)
end
function deselected()
end
h.Selected:connect(selected)
h.Deselected:connect(deselected)