weird terrain generator

seed.lua

local gen = 1000

function generate(i)
	local num = math.random(0, i)
	local part = Instance.new("Part")

	part.BrickColor = BrickColor.random()
	part.Anchored = true
	part.Parent = workspace
	part.Position = Vector3.new(num * 2, 1, num * 3) * math.random(0, 200)
	part.Size = Vector3.new(num * 20, 50 + math.random(50), num * 20)
end

for i = 0, gen, 1 do
	generate(i)
end