View difference between Paste ID: 7Ndj1pau and y7LRANmC

 --[[
 This program is designed to setup a 9x9 farm on a level surface with a
 water source block in the middle. These dimensions account for the
 maximum range a tilled dirt can be from water. If you would prefer to
 have the farm level with your terrain rather than raised one above it
 you need only clear a 9x9 hole in the ground and ensure your turtle is
 placed at the block height you want the farm built at. This program
 can handle wheat, carrots, and potatoes. A farming turtle will require
 the following items in it's inventory slots:
 
 1) 64 dirt
 2) 16 dirt
 4) bucket of water
 5) 64 seeds, carrots, or potatoes
 6) 16 seeds, carrots, or potatoes
 16) Fuel (preferably coal, charcoal, or a lava bucket)
 
 Future versions will support pumpkins and melons along with
 harvesting/replanting code.
 ]]--
 
 local step = 1 --used to track progression
 local count = 64 --used to track inventory slots
 local n = 1 --used to track slot selection
 
 function fuel()
   if turtle.getFuelLevel() < 10 then
     select(16)
     turtle.refuel(1)
   end
 end
 
 --assorted functions to shorten/tidy my actual code
 function left(reps)
   for x=1,reps do
    turtle.turnLeft()
   end
 end
 
 function right(reps)
   for x=1,reps do
    turtle.turnRight()
   end
 end
 
 function back(reps)
   for x=1,reps do
    fuel()
    turtle.back()
   end
 end
 
 function forward(reps)
   for x=1,reps do
    fuel()
    turtle.forward()
   end
 end
 
 function up(reps)
   for x=1,reps do
    fuel()
    turtle.up()
   end
 end
 
 function down(reps)
   for x=1,reps do
    fuel()
    turtle.down()
   end
 end
 
 function pDown()
   turtle.placeDown()
 end
 
 function pUp()
   turtle.placeUp()
 end
 
 function place()
   turtle.place()
 end
 
 function dDown()
   turtle.digDown()
 end
 
 function select(slot)
   turtle.select(slot)
 end
 
 --Turtle positions itself and begins creating the farm
 up(1)
 right(2)
 back(1)
 select(1)
 pDown()
 count = count - 1
 
 --Turtle creates the farm when z == 1 and then tills and plants when z == 2
 for z=1,2 do
   for x=1,9 do
     for y=1,8 do
       if z == 1 then
         if count > 0 then
           n=1
         else
           n=2
         end
       else
         if count > 0 then
           n=5
         else
           n=6
         end
       end
       if turtle.getItemCount(1) == 24 and count == 24 then --tracks for water placement
         back(2)
         down(1)
         select(4)
         place()
         up(1)
         forward(1)
       else
         back(1)
         select(n)
         pDown()
       end
       count = count - 1
     end
     if step == 1 then
       select(n)
       pDown()
       right(1)
       back(1)
       right(1)
       if not pDown() then
         select(n+1)
         pDown()
       end
       step = 2
       count = count - 2
     else
       select(n)
       pDown()
       left(1)
       back(1)
       left(1)
       if not pDown() then
         select(n+1)
         pDown()
       end
       step = 1
       count = count - 2
     end
   end
   for a=1,2 do
     right(1)
     forward(1)
   end
   up(1)
   count = 64
 end