[LUA] Autocrafting Iron

Hello guys and I am a noob with crafty turtles. Just thought I should start with that. I need someone to help me make a program that takes items from a chest above the crafty turtle, crafts the item and then puts it into the chest below. It will try to take 4 broken iron ores (Sky factory), and put them in the shape of a crafting bench, 2X2, and craft iron ore gravel. It will then be put into the chest below. But it won't even take items and try to craft if it can't even take the 4 items from the chest above.

Can someone PLEASE help me.

Please post your current code and describe what you're stuck on, or list the full error message you're receiving.

Ok my current code is:

while true do
  recipes = {
    ["3004"] = {
	  count = 4,
	  map = {
	    [1] = true, [2] = true, [3] = false,
	    [5] = true, [6] = true, [7] = false,
	    [9] = false, [10] = false, [11] = false
	  }
    }
  }
  function craftRecipe(recipe)
    turtle.select(1)
    for k,v in pairs(recipe.map) do
	  turtle.select(k)
	  if v then
	    turtle.suckDown()
	    turtle.dropDown(turtle.getItemCount(k)-1)
	  end
    end
    turtle.select(1)
    turtle.craft()
    turtle.dropDown()
  end
  try = turtle.suckUp(4)
    craftRecipe(recipes["3004"])
    sleep(5)
  
end

and the error I am getting is: run:23: attempt to call nil

What am I doing wrong.

First of all: for k,v in ipairs(…

in pairs() don't seems to work…

lebuildman's information is incorrect; pairs() works fine. If recipe.map points to an ordered table, then ipairs would probably be a good way to parse the table, otherwise it's a bit more situational.

Based on what you posted, I don't see a problem on line 23. The only possibility I can see is that slot 1 could be empty; I don't know what happens if you call dropDown() on an empty slot. I can see some other possible problems, but they aren't on or directly related to line 23.

The only line I see which could throw an "attempt to call nil" is 22, the "turtle.craft()" call - and that's only if the turtle isn't a crafty turtle.

If it is, try breaking and replacing it. Make sure you set a label first.

It is a crafty turtle and if you were to code this can you show me how you would code it and explain it?

Did you try breaking and replacing the turtle (after labeling it) as Bomb Bloke suggested?

As for suggestions as to how to approach coding it (not sure if that was directed solely at Bomb Bloke or anyone) - I'm not familiar with crafty turtles, so I wouldn't know where to start to write a program for one. I can help troubleshoot your current code (from a functional standpoint) but starting from scratch would not be something I'd be very helpful with.

I haven't tried breaking and replacing but I will try. And anyone can help me fix the code or write it new

The code runs fine there are no errors in the code itself. I've made a couple of changes to the logic and it works great. Here is my updated version with comments.

while true do
  recipes = {
	["3004"] = {
		  count = 4,
		  map = {
			[1] = true, [2] = true, [3] = false,
			[5] = true, [6] = true, [7] = false,
			[9] = false, [10] = false, [11] = false
		  }
	}
  }
  function craftRecipe(recipe)
	turtle.select(1)
	for k,v in pairs(recipe.map) do
		  turtle.select(k)
		  if v then
			--turtle.suckDown() --remove you want mats from chest above the turtle.
			turtle.suckUp() --to suck mats from chest above
			--could also just change to turtle.suckUp(1), and remove the drop
			turtle.dropUp(turtle.getItemCount(k)-1) --changed to Up to place excess material in supply chest
		  end
	end
	turtle.select(1)
	turtle.craft()
	turtle.dropDown()
  end
  --try = turtle.suckUp(4) --remove you don't need this you do it in the craftRecipe() function
	craftRecipe(recipes["3004"])
	sleep(5)
end