Potato Farm Turtle

Hello guys i have a question. I wrote myself a program whitch lets my turtle farm my 9*9 field of potatos. It works just fine until my turtle ends the 2. cycle and starts acting odd. instead of turning right again it just keep up going straight forward. i dont know what ive done wrong. i checked the code for about 10000000000 times and didnt find the fault. Its proably a small one but i dont get it >.>

Spoiler

local a = 0
local side = 0
repeat
repeat
  turtle.select(1)
  turtle.digDown()
  turtle.placeDown()
  turtle.forward()
  side = side + 1
until side == 9

  if a % 2 == 1 then
   turtle.turnRight()
  else
   turtle.turnLeft()
  end
turtle.forward()
  if a % 2 == 1 then
   turtle.turnRight()
  else
   turtle.turnLeft()
  end
turtle.forward()
a = a + 1
until a == 9

i know theres proably a much easier way to do this^^ :P/>

   if a % 2 == 1 then
	  turtle.turnRight()
   else
	  turtle.turnLeft()
   end
	  turtle.forward()
   if a % 2 == 1 then
	  turtle.turnRight()
   else
	  turtle.turnLeft()
   end

would just be better like

   if a % 2 == 1 and a < 8 then
	  turtle.turnRight()
	  turtle.forward()
	  turtle.turnRight()
   elseif a % 2 == 1 and a < 8 then
	  turtle.turnLeft()
	  turtle.forward()
	  turtle.turnLeft()
   end

also, turtle.forward() should probably be first instead of last:

repeat
	  turtle.forward()
	  turtle.select(1)
	  turtle.digDown()
	  turtle.placeDown()
	  side = side + 1
   until side == 9

Though that wouldn't work perfect either. I would recommend just looking through you code and every step and everything that happens. Also, for loops. They are you friend.

thanks for your help. :)/>
i think ill just rewrite the whole code and improve it^^

yeah!! got it! used a lot of local functions but it works just fine :)/>

hello, looks great, i've been getting into computercraft for 2 weeks now, can you plz post the working program so i can use it, and learn from it:)

thanks:D

ivos97, on 04 January 2013 - 09:31 AM said:

hello, looks great, i've been getting into computercraft for 2 weeks now, can you plz post the working program so i can use it, and learn from it:)

thanks:D

Try making your own? I know the forums is a place to learn and use other peoples work. But if you've been using computercraft for 2 weeks you should be able to accomplish something like this no problem. A potato farm was probably in my 10 first programs.

Look in the Programs and Turtle Programs forums for examples of (hopefully working) code that have been released by their authors for general use.