floor.lua

function findBlock()
for slot = 2,16 do
    if turtle.getItemCount(slot) >0 then
    turtle.select(slot)
    break
    end
end
end

function move()
    turtle.forward()
    turtle.placeDown()
    findBlock()

end

function refuel()
    turtle.select(1)
    turtle.refuel()

end

function turnRight()
    findBlock()
    turtle.turnRight()
    turtle.forward()
    turtle.placeDown()
    turtle.turnRight()
end

function turnLeft()
    findBlock()
    turtle.turnLeft()
    turtle.forward()
    turtle.placeDown()
    turtle.turnLeft()
end

function run()

    for i=1,59 do

    if turtle.getFuelLevel() < 1 then
        refuel()
    else
        move()
        end
    end
end

while true do

findBlock()
run()
turnRight()
run()
turnLeft()
end