floor

function floorForward()
    for j=1,4 do
        for i=1,6 do
            if turtle.detectDown() then
                t.dig("down")
            end
            t.place("down","marble1")
            t.w(1,"dig")
        end
        t.r(1)

    end
end

function floorLap()
    floorForward()
    t.a(2)
    t.w(24,"dig")
    t.f(4,"dig")
    t.a(1)
    t.w(1,"dig")
    t.a(1)
end

for k=1,10 do
    floorLap()
end