filler

bucketCount = 16
height = 0
dir = 1
function refillBucket()
turtle.select(16)
        turtle.placeUp()
        turtle.select(1)
        for i = 1,16 do
         turtle.placeUp()
        end
        turtle.select(16)
        turtle.digUp()
        bucketCount = 16


         turtle.select(8)
        turtle.transferTo(12,1)
         turtle.select(12)
        turtle.transferTo(16,1)


         turtle.select(9)
        turtle.transferTo(10,64)
         turtle.select(10)
        turtle.transferTo(11,64)
        turtle.select(11)
        turtle.transferTo(13,64)
        turtle.select(13)
        turtle.transferTo(14,64)
end
function placeBucket()
if bucketCount == 0 then
         refillBucket()
        end
        bucketCount = bucketCount - 1
turtle.select(1)
turtle.placeDown()
        sleep(2)
end
function fforward()
while turtle.forward()==false do
end
end

function right()
turtle.turnRight()
end
function left()
turtle.turnLeft()
end
turtle.select(15)
if turtle.compareDown()==false then
print("Wrong place! Place Turtle in the left corner! Put Reactor Casing in the 15th slot!")
else
fforward()
right()
fforward()
left()
while turtle.detectDown()==false do
turtle.down()
        height = height + 1
end
for i = 1,(height) do
turtle.up()
end
finished = false
while finished==false do

        for i = 1,(height - 1) do
         placeBucket()

        end
        turtle.select(14)
                turtle.placeDown()
        fforward()
        while turtle.detectDown() do
         turtle.select(15)
         if turtle.compareDown() then

                 if dir == 1 then
                         right()
                                fforward()
                                right()
                                fforward()
                                if turtle.compareDown() then
                                 finished = true
                                end
                                dir = 2

                        else
                         left()
                                fforward()
                                left()
                                fforward()
                                if turtle.compareDown() then
                                 finished = true
                                end
                                dir = 1

                        end
                else
                fforward()
                end
        end
end
end