item checking turtle thingy

Hi all

I think I messed up , mostly I have no idea whats going on with the programming but back in the day I did some java and well I am able to get the turtle to build my castle walls for me in a way that is though I wish to get the part working where it will check the item in slots 5 - 16 and if 5 is empty then move to slot 6 and so on . Well here is the script thingy I am working on I have messed with it but I get some funky errors can some one please have a look and help me ?

print("how long?")
a = read()
print("how high?")
b = read()
for i=1,a do

for i=1,b do
  print( "i is "..tostring(i) ) -- refuel script I coppied
  print ("CheckingFuel...")
  if turtle.getFuelLevel() < 5 then
  for i = 1, 4 do -- loop through the slots
  turtle.select(i) -- change to the slot
  if turtle.refuel(0) then -- if it's valid fuel
  local halfStack = math.ceil(turtle.getItemCount(i)/2) -- work out half of the amount of fuel in the slot
  turtle.refuel(halfStack) -- consume half the stack as fuel
  end
  end
  else
  print ("Enough fuel")
  end						  -- end refuel script I copied

turtle.select(5) -- select slot 5 after fuel check from slot 1 to 4


  z = 5		  -- check turtle slot for item it no item move to next slot
  turtle.getItemCount(z)
  if turtle.getItemCount(z) == 0 then
  z = z + 1
  turtle.selcect(z)
  else
  write("slot has blocks in")
  end	-- end check for item

  turtle.placeRight() -- build tower layer
  turtle.placeLeft()  -- build tower layer
  turtle.up()		 -- build tower layer
  turtle.placeDown()  -- build tower layer
  end
turtle.forward() --move turtle back down to start new collom
for i=1,b do
  turtle.down()
  end
end

thank you all :)/>

Could you provide the errors?

sure it reads wall : 51 : attempt to call nil

southiebob, on 09 April 2014 - 12:01 AM said:

sure it reads wall : 51 : attempt to call nil

I'm kinda confused, there aren't 51 lines in this program…

southiebob, on 09 April 2014 - 12:01 AM said:

sure it reads wall : 51 : attempt to call nil

Near the middle:
turtle.selcect(z)
Change that to:
turtle.select(z)

Agoldfish, on 09 April 2014 - 12:13 AM said:

southiebob, on 09 April 2014 - 12:01 AM said:

sure it reads wall : 51 : attempt to call nil

I'm kinda confused, there aren't 51 lines in this program…

I'm assuming part of the code is missing from the provided code.

Hi sorry yea I cut something out by accidently it shows as line 38 now hmmm apemanzilla seems my spelling failed me again there adjusting it now ty :3

Glad I could help, tell me if there's still errors.

error is gone thanks loads though now it checks though just noticed that I might have the check item in the wrong place here is the code as I have it now

print("how long?")
a = read()
print("how high?")
b = read()
z = 5
for i=1,a do

for i=1,b do
  print( "i is "..tostring(i) ) -- refuel script I coppied
  print ("CheckingFuel...")
  if turtle.getFuelLevel() < 5 then
  for i = 1, 4 do -- loop through the slots
  turtle.select(i) -- change to the slot
  if turtle.refuel(0) then -- if it's valid fuel
  local halfStack = math.ceil(turtle.getItemCount(i)/2) -- work out half of the amount of fuel in the slot
  turtle.refuel(halfStack) -- consume half the stack as fuel
  end
  end
  else
  print ("Enough fuel")
  end						  -- end refuel script I copied

turtle.select(z) -- select slot 5 after fuel check from slot 1 to 4


			-- check turtle slot for item it no item move to next slot
  turtle.getItemCount(z)
  if turtle.getItemCount(z) == 0 then
  z = z + 1
  turtle.select(z)
  else
  write("slot has blocks in")
  end	-- end check for item
  turtle.turnRight()
  turtle.place() -- build tower layer
  turtle.turnLeft()
  turtle.turnLeft()
  turtle.place()  -- build tower layer
  turtle.turnRight()
  turtle.up()		 -- build tower layer
  turtle.placeDown()  -- build tower layer
  end
turtle.forward() --move turtle back down to start new collom
for i=1,b do
  turtle.down()
  end
end

though I think I messed it up some how , it does check if slot 5 is empty and then moves to slot 6 , but then just carries on with the rest of the program instead of checking slot 6 as well before starting to build sigh sorry I am new at this .

as well sorry for a late reply I must head to bed must be at work again in about 2hrs :)/>

thanks for the help I am slowly getting the hang of how this works

ps well it looks much better then what I started with

turtle.select(5)
if turtle.select(5) < 5 then
  turtle.select(6)
if turtle.select(6) < 5 then
  turtle.select(7)
if turtle.select(7) < 5 then
  turtle.select(8)
if turtle.select(8) < 5 then
  turtle.select(9
if turtle.select(9) < 5 then
  turtle.select(10)
if turtle.select(10) < 5 then
  turtle.select(11)
if turtle.select(11) < 5 then
  turtle.select(12)
if turtle.select(12) < 5 then
  turtle.select(13)
if turtle.select(13) < 5 then
  turtle.select(14)
if turtle.select(14) < 5 then
  turtle.select(15)
if turtle.select(15) < 5 then
  turtle.select(16)

and yes that failed horribly

Thank you all finally got it working :)/> here is how it looks now , and yes I know my spelling fails sorry about that

print("how long?")
a = read()	    --read number for use in lenth of tower
print("how high?")
b = read()	   --read number for use in hight of tower
check = 5	    -- define check start slot for turtle
for i=1,a do	    -- loop start for the lenth of tower
for i=1,b do	    -- loop start for hight of tower
print( "i is "..tostring(i) )	  -- refuel script I coppied
print ("CheckingFuel...")	 -- refuel script I copied
if turtle.getFuelLevel() < 5 then    -- refuel script I copied
for i = 1, 4 do -- loop through the slots   -- refuel script I copied , changed so that it only goes from slot 1 to 4 for fuel
turtle.select(i) -- change to the slot    -- refuel script I copied
if turtle.refuel(0) then -- if it's valid fuel   -- refuel script I copied
local halfStack = math.ceil(turtle.getItemCount(i)/2)   -- work out half of the amount of fuel in the slot -- refuel script I copied
turtle.refuel(halfStack) -- consume half the stack as fuel -- refuel script I copied
end	    -- refuel script I copied
end	    -- refuel script I copied
else	    -- refuel script I copied
print ("Enough fuel")	  -- refuel script I copied
end	    -- end refuel script I copied
turtle.select(check)	  -- turle select slot after refuel
if turtle.getItemCount(check) <=5 then    -- turtle check amount in slot check if less then 5 statment true
check = check + 1	  -- change check number for next slot
turtle.select(check)	  -- change to next slot
end	    -- end of turtle slot check if

turtle.turnRight()	  -- turn turtle for building
turtle.place()	    -- build tower layer
turtle.turnLeft()	  -- turn turtle for building
turtle.turnLeft()	  -- turn turtle for building
turtle.place()	    -- build tower layer
turtle.turnRight()	  -- turn turtle back to frunt facing posistion
turtle.up()			  -- move turtle for next layer
turtle.placeDown()	    -- finish building pref layer
end		 -- loop end for tower hight
turtle.forward()	   -- move turtle forward to get back to starting posistion
for i=1,b do	   -- loop for moving turtle back down , loops for hight amount
turtle.down()	   -- turtle moves down
end	    -- end of loop for turtle reset posistion
end	    -- end of loop for lenth of tower

turtle.select(check)	  -- turle select slot after refuel
if turtle.getItemCount(check) <=5 then    -- turtle check amount in slot check if less then 5 statment true
check = check + 1		 -- change check number for next slot
turtle.select(check)	  -- change to next slot
end

This probably won't work very well if there is a gap in the slots. I'd suggest using a loop instead of an if statement.

local check = 5
while turtle.getItemCount(check) <= 5 do
  check = check+1
  if check > 16 then
    error"Out of blocks!"
  end
end
turtle.select(check)

CometWolf, on 09 April 2014 - 02:24 PM said:

turtle.select(check)	  -- turle select slot after refuel
if turtle.getItemCount(check) <=5 then	-- turtle check amount in slot check if less then 5 statment true
check = check + 1		 -- change check number for next slot
turtle.select(check)	  -- change to next slot
end

This probably won't work very well if there is a gap in the slots. I'd suggest using a loop instead of an if statement.

local check = 5
while turtle.getItemCount(check) <= 5 do
  check = check+1
  if check > 16 then
	error"Out of blocks!"
  end
end
turtle.select(check)

hmmm changed my if statement to the loop one seems to work as well not bad , I am currently messing around with turtles since they are so much fun to play with :)/> every bit of extra code help :D/>