Computercraft bug - or am I just missing the obvious?

for z = 2,16 do
turtle.select(z)
if turtle.compareTo(1) == false then
turtle.drop()
end
end

Why on earth would that drop anything from slot 1?

…It wouldn't?

Is there more to your script than this? It could be happening somewhere else…

There is more code - but it's blocked fine. And it worked fine in 1.4.7; like it should have. That's what's weird; it started this behavior (not working) with 1.52.


Here's the full program - it's still being worked on; and sorry it's not blocked properly - but ….

Spoiler

local loops = 2

– functions
local function tryDown()
while not turtle.down() do
if turtle.detectDown() then
turtle.digDown()
else
turtle.attackDown()
sleep( 0.75 )
end
end
end

local function tryUp()
while not turtle.up() do
if turtle.detectUp() then
turtle.digUp()
else
turtle.attackUp()
sleep( 0.5 )
end
end
end

local function tryForward()
while not turtle.forward() do
if turtle.detect() then
turtle.dig()
else
turtle.attack()
sleep( 0.5 )
end
end
end

–start getting oak
turtle.select(1)
for i = 1,loops do

– get sapling and plant…
turtle.turnLeft()
turtle.suck()
turtle.turnRight()
turtle.place()

– put the rest back
turtle.turnLeft()
turtle.drop()
turtle.turnRight()

– get bone
turtle.turnRight()
turtle.suck()
turtle.turnLeft()
for zz = 1,20 do
turtle.place()
sleep(0.5)
end

– put the rest back
turtle.turnRight()
turtle.drop()
turtle.turnLeft()

– cutdown tree
tryForward()
for y = 1,7 do
tryUp()
for x = 1,2 do
tryForward()
turtle.turnLeft()
turtle.dig()
turtle.turnRight()
turtle.dig()
turtle.turnRight()
turtle.dig()
turtle.turnRight()
tryForward()
end
end

for z = 2,16 do
turtle.select(z)
if turtle.compareTo(1) == false then
turtle.drop()
end
end

for y = 1,7 do
tryDown()
end
turtle.back()

– put wood in box
turtle.turnLeft()
turtle.turnLeft()
for y = 1,16 do
turtle.select(y)
turtle.drop()
end
turtle.select(1)
turtle.turnLeft()
turtle.turnLeft()
print ("Pausing for 45 seconds…")
print ("Working on loop # ",i," of ",loops,".")
sleep(45)
end

Try putting that code by itself in a turtle; it's gotta be a computercraft bug. I'll go report it. It's acting REALLY strangely. (It looks like drop might now drop everything? Not just the slot?)

its your code right here

--start getting oak
turtle.select(1)
for i = 1,loops do
  -- get sapling and plant...
  turtle.turnLeft()
  turtle.suck()
  turtle.turnRight()
  turtle.place()

  -- put the rest back
  turtle.turnLeft()
  turtle.drop()

that drops the first slot…

Read the rest of the program :)/> - that part is correct :)/> - it is supposed to pick up from the box to the left; plants trees, puts the rest back. Goes to the box to the right; picks up bonemeal - places it on the tree; then puts it back… (ie. it's putting a sapling down and fertalizing it…)

The bug is at the top of the tree, after it's cut the wood - it's supposed to look at the first slot (which will be wood) then drop anything that isn't matching what's in slot 1; that's the problem - it's dropping everything (including slot 1)…

Try putting the first piece of code in a turtle (the lines I have above) - and put something in slot 1, slot 10 that match; then something in slot 16 (put 20 things) - and make it drop(1) - watch what happens… It bugs out.

Actually don't even bother with a program - load 1 item in each slot; then go to lua

type in this:

turtle.select(1)
turtle.drop()
turtle.drop()

watch what happens… It starts dropping stuff from slot 2, then 3, then 4 - even tho slot 1 is still selected.

oops there it is…

line 98 — 101

for y = 1,16 do
  turtle.select(y)
  turtle.drop()
end

gronkdamage, on 02 April 2013 - 08:23 PM said:

Actually don't even bother with a program - load 1 item in each slot; then go to lua

type in this:

turtle.select(1)
turtle.drop()
turtle.drop()

watch what happens… It starts dropping stuff from slot 2, then 3, then 4 - even tho slot 1 is still selected.

doesn't do that for me… rename startups, reboot your turtle and try it right away.

So using default configuration; removed all mods but CC and Forge 611 - it's still doing it :(/>

What version of forge do you use?

Strange - I tried it with the latest (and CC only); and with the recomended. Everytime, it would drop from slots that weren't selected… :/ I'll report it as a bug; but we did a fresh install - and it still does it (both on my server - and in single player)…

Just an update; when I fill every slot - the code works exactly as it should. When 1 slot is empty; it bugs out.

You can make a workaround. If it drops things from other slots only if you try to drop something from an empty slot, do this:

for i = 2,16 do
  if turtle.getItemCount(i) > 0 then
	turtle.select(i)
	if not turtle.compareTo(1) then
	  turtle.drop()
	end
  end
end

Edit: And it will run a bit faster, since turtle.select requires about a tick to be done, when turtle.getItemCount performed almost instantly

Thanks PonyKuu - Cloudy confirmed the bug; but I'll give this a try :)/>