Roblox Script create a spiral labyrinth

local a = 0
local add = math.pi / 12
local radius = 30
local width = 6

for count = 0, 120 do
    local p = game.ServerStorage.Wall:Clone()
    p.Parent = game.Workspace
    
    local x = math.cos(a) * radius
    local y = math.sin(a) * radius
    
    local h = 20
    
    p.Position = Vector3.new(x, h/2, y)
    p.Orientation = Vector3.new(0, a*180/math.pi*-1, 0)
    p.Size = Vector3.new(1, h, width)
    
    p.Anchored = true
    
    radius = radius + 1
    width = width + 0.3
    
    a = a + add
end