Wheat/Seed Turtle

inventorycheckslot = 1
bonemealslot = 2
bonemeallowlimit = 10
seedslot = 3
seedlowlimit = 10
dumpslotbegin = 4
dumpslotend = 16
runbeforeempy = 32

function resetPosition()
  turtle.select(inventorycheckslot)
  c = turtle.compare()
  print("Resetting position.")
  while c==false do
    c = turtle.compare()
    if (c==false) then
      turtle.turnRight()
      sleep(1)
    end
  end
  sleep(1)
  turtle.turnRight()
  sleep(1)
  turtle.turnRight()
  sleep(1)
end

function refill()
  print("Refilling bonemeal.")
  turtle.select(bonemealslot)
  turtle.dropUp()
  turtle.suckUp()

  if (turtle.getItemCount(seedslot) < seedslot) then
    print("Refilling seeds.")
    turtle.turnRight()
    sleep(1)
    turtle.turnRight()
    sleep(1)
    turtle.select(seedslot)
    turtle.drop()
    sleep(1)
    turtle.suck()
    sleep(1)
    turtle.turnRight()
    sleep(1)
    turtle.turnRight()
    sleep(1)
  end
end

function boneMeal()
  if (turtle.getItemCount(bonemealslot) < bonemeallowlimit) then
    refill()
  end

  b = true
  while b==true do
    turtle.select(bonemealslot)
    b = turtle.place()
  end

end

function placeSeed ()
  if (turtle.getItemCount(seedslot) < seedlowlimit) then
    refill()
  end

  turtle.select(seedslot)
  turtle.place()
end

function emptySlots()
  for i=dumpslotbegin,dumpslotend do
    turtle.select(i)
    turtle.dropUp()
  end
end


resetPosition()

while true do
  if(redstone.getInput("bottom")==true) then
    for i=1,runbeforeempy do
      print("Farming run: ".. i .." of ".. runbeforeempy)
      turtle.dig()
      sleep(1)
      turtle.suck()
      sleep(1)
      placeSeed()
      sleep(1)
      boneMeal()
      sleep(1)
      turtle.dig()
      sleep(1)
      turtle.suck()
      sleep(1)
      turtle.suck()
    end
    emptySlots()
  else
    turtle.suck()
    print("No Redstone signal")
    print("Sleeping for 60 seconds")
    sleep(30)
    turtle.suck()
    print("Sleeping for 30 seconds")
    sleep(20)
    turtle.suck()
    print("Sleeping for 10 seconds")
    sleep(10)
    turtle.suck()
    emptySlots()
  end
end