Farm

local clock = os.clock
function sleep(n)  -- seconds
  local t0 = clock()
  while clock() - t0 <= n do end
end
function cassercipa()
    a=0
    while a<2 do
    turtle.digDown()
    turtle.forward()
    a = a+1
    end
end
function cultiver()
    turtle.digDown()
    turtle.digDown()
    turtle.placeDown()
    turtle.forward()
end
for i = 1, 16 do -- loop through the slots
  turtle.select(i) -- change to the slot
  if turtle.refuel(0) then -- if it's valid fuel
    local halfStack = math.ceil(turtle.getItemCount(i)/2) -- work out half of the amount of fuel in the slot
    turtle.refuel(halfStack) -- consume half the stack as fuel
  end
end
sleep(2)
turtle.forward()
cassercipa()
cultiver()
cultiver()
cultiver()
turtle.forward()
turtle.forward()
turtle.forward()
turtle.turnLeft()
b=0
turtle.forward()
while b<7 do
    cultiver()
    b = b+1
end
turtle.turnRight()
turtle.forward()
turtle.turnRight()
turtle.forward()
cassercipa()
cultiver()
cultiver()
cultiver()
turtle.forward()
turtle.forward()
turtle.forward()
turtle.turnRight()
b=0
turtle.forward()
while b<7 do
    cultiver()
    b = b+1
end
turtle.turnRight()
turtle.forward()
turtle.turnRight()
turtle.forward()
b=0
while b<6 do
    cultiver()
    b = b+1
end
turtle.back()
turtle.turnLeft()
turtle.forward()
b=0
while b<5 do
    cultiver()
    b = b+1
end
turtle.back()
turtle.turnLeft()
turtle.forward()
turtle.turnLeft()
b=0
while b<6 do
    cultiver()
    b = b+1
end
turtle.back()
turtle.turnRight()
turtle.forward()
turtle.turnRight()
b=0
while b<6 do
    cultiver()
    b = b+1
end
turtle.back()
turtle.turnLeft()
turtle.forward()
turtle.turnLeft()
b=0
while b<6 do
    cultiver()
    b = b+1
end
turtle.back()
turtle.turnRight()
turtle.forward()
turtle.turnRight()
b=0
while b<6 do
    cultiver()
    b = b+1
end
turtle.back()
turtle.turnLeft()
turtle.forward()
turtle.turnLeft()
b=0
while b<6 do
    cultiver()
    b = b+1
end
turtle.turnRight()
turtle.forward()
turtle.turnLeft()
turtle.forward()
turtle.turnLeft()
-- sleep(300)