tur.lua (Computercraft mod)

local function square(leng)
    local i,j
    for i = 1,4 do
        for j = 1,leng do
            turtle.digDown()
            if j == leng and i == 4 then break end
            turtle.forward()
        end
        turtle.turnLeft()
    end
end

function area()
    for l = 0,4 do
        square(2*(4-l)+1)
        turtle.forward()
    end

    for i = 1,5 do
        turtle.back()
    end
    turtle.turnRight()
    for i = 1,5 do
        turtle.forward()
    end
    turtle.turnLeft()
end

function stair()
    local turns = 0
    while not turtle.inspectUp() do
        turtle.forward()
    end
    while turtle.inspectUp() do
        if not turtle.forward() then
            turtle.turnLeft()
            turns = turns + 1
        end
    end
    turtle.down()
    turtle.placeUp()
    while turtle.back() do end
    if turns > 0 then
        for i = 1, turns do
            turtle.turnRight()
            while turtle.back() do end
        end
    end
end

for cir = 1,10 do
    area()
    turtle.down()
end