Lua Script Help! - ComputerCraft Forums (archive)

Mnoone96 #1

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1 posts

Posted 13 September 2015 - 04:14 PM

Hi There!

I wrote this script to fill a quarry and im getting pack an error in line 12 when i involve user input. Error: 'then' expected. Need Help!!

Lyqyd #2

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8543 posts

Posted 13 September 2015 - 06:40 PM

Moved to Ask a Pro.

Dog #3

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1220 posts

Location Earth orbit

Posted 13 September 2015 - 07:06 PM

On lines 10 and 31 you have


if re = "y" then

they should be


if re == "y" then

You need a double = because you are doing a comparison - a single = is used for setting a variable

Here is your code, with corrections, indented, and placed in code tags - I've place it inside a spoiler due to it's length. I also took the liberty of replacing your fullCycleTwentySeven() function with a loop, so it's easier to read and manage in the future.

Spoiler


function placeBlockDownForward()
  length = 0
  -- Length limit is 1 less than actual --
  while length &amp;amp;amp;lt;= 104 do
    turtle.forward()
    turtle.placeDown()
    if turtle.getItemCount() == 0 and select == 16 then
      print "Not enough Dirt. Please place in more and hit enter 'y'"
      re = io.read()
      if re == "y" then
        select = 0
        turtle.select(select)
      end
    elseif turtle.getItemCount() == 0 then
      select = select + 1
      turtle.select(select)
    end
    length = length + 1
  end
end

function placeBlockDownBack()
  length = 0
  -- Length limit is 1 less than actual --
  while length &amp;amp;lt;= 104 do
    turtle.back()
    turtle.placeDown()
    if turtle.getItemCount() == 0 and select == 16 then
      print "Not enough Dirt. Please place in more and hit enter 'y'"
      re = io.read()
      if re == "y" then
        select = 0
        turtle.select(select)
      end
    elseif turtle.getItemCount() == 0 then
      select = select + 1
      turtle.select(select)
    end
    length = length + 1
  end
end

function fullCycleReverse()
  placeBlockDownBack()
  turtle.up()
  placeBlockDownForward()
  turtle.up()
end

function fullCycle()
  placeBlockDownForward()
  turtle.up()
  turtle.placeDown()
  placeBlockDownBack()
  turtle.up()
  turtle.placeDown()
end

function placeBlock()
  length = 0
  while length &amp;amp;lt;= 103 do
    turtle.back()
    turtle.place()
    if turtle.getItemCount() == 0 then
      select = select + 1
      turtle.select(select)
    end
    length = length + 1
  end
end

function turtleGoDown()
  depth = 0
  while depth &amp;amp;lt;= 59 do
    turtle.down()
    depth = depth + 1
  end
end

select = 1
turtle.select(select)
turtle.forward()
turtleGoDown()
turtle.turnRight()
turtle.turnRight()
placeBlock()
turtle.back()
turtle.place()
turtle.up()
turtle.up()

function fullCycleTwentySeven()
  for i = 1, 27 do --# this will loop 27 times
    fullCycle()
  end
end

fullCycleTwentySeven()

One more thing…I noticed on lines 11 and 32 you are setting select to 0. I may be wrong, but I think turtle slots are numbered 1-16, not 0-15. Trying to select slot 0 *may* cause an error.

Edited on 13 September 2015 - 05:36 PM