treefarm

while true do

function do_row()
for position=1,22 do
   if turtle.back() == false then
      turtle.turnLeft()
      turtle.turnLeft()
      turtle.dig()
      turtle.turnLeft()
      turtle.turnLeft()
      turtle.back()
   end
   turtle.select(1)
   turtle.place()
   turtle.select(2)
   turtle.place()
end
end

function right5()
   turtle.turnRight()
   for forward=1,5 do
      turtle.forward()
   end
   turtle.turnRight()
end

function left5()
   turtle.turnLeft()
   for forward=1,5 do
      turtle.forward()
   end
   turtle.turnLeft()
end

function bonemeal()
   turtle.select(2)
   turtle.suck()
   turtle.drop(turtle.getItemCount(2)-42)
end

function sapling()
   turtle.select(1)
   turtle.suck()
   turtle.drop(turtle.getItemCount(1)-42)
end


for first=1,2 do
   do_row()
   right5()
   bonemeal()
   sleep(1)
   do_row()
   left5()
   sapling()
   sleep(1)
end

sleep(5)

for second=1,2 do
   do_row()
   left5()
   bonemeal()
   sleep(1)
   do_row()
   right5()
   sapling()
   sleep(1)
end

end