26 posts
Location
Essex, UK
Posted 13 June 2014 - 11:27 AM
i have a program where the idea is that I have a file containing tables with components for spells from ars magica 2. So far I have managed to save table to file read it and get the items from my AE network no problem. However I can't work out how to do this with more than one table. I attempted to add the table to a new line but couldn't work out how to read all the different tables into a multidimensional array.my code is here: http://pastebin.com/c4rHJsFKthe data in the file is:
{[1]=22256,[2]=262,[3]=332,}
{[1]=813,[2]=22256,[3]=22303,}
Edited on 13 June 2014 - 09:29 AM
108 posts
Posted 13 June 2014 - 11:34 AM
You should be able to put all of the tables you're interested into a single larger table, and then have that table be stored in the file.
41 posts
Posted 13 June 2014 - 11:37 AM
You could use the following lines of code to read each line of the file then add the table read to a big table (assuming "recipes" is the file in which you saved the tables)
local tables = {} -- Stores all the tables
local handle = fs.open("recipes", "r")
while true do
local text = handle.readLine()
if text then
local recipe = textutils.unserialize(text)
if recipe then
table.insert(tables, recipe) -- tables:insert won't work 1.63
end
else
break
end
end
handle.close()
26 posts
Location
Essex, UK
Posted 13 June 2014 - 11:44 AM
You should be able to put all of the tables you're interested into a single larger table, and then have that table be stored in the file.
I will have over 100 of these recipes so t's easier to have it stored in a text file than in the program
You could use the following lines of code to read each line of the file then add the table read to a big table (assuming "recipes" is the file in which you saved the tables)
local tables = {} -- Stores all the tables
local handle = fs.open("recipes", "r")
while true do
local text = handle.readLine()
if text then
local recipe = textutils.unserialize(text)
if recipe then
table.insert(tables, recipe) -- tables:insert won't work 1.63
end
else
break
end
end
handle.close()
this was exactly what I wanted thank you !
108 posts
Posted 13 June 2014 - 11:48 AM
You should be able to put all of the tables you're interested into a single larger table, and then have that table be stored in the file.
I will have over 100 of these recipes so t's easier to have it stored in a text file than in the program
I meant just store the larger table in the external file. It also shouldn't be that difficult if you need to modify the file you already have.
Your file would change into
{{[1]=22256,[2]=262,[3]=332,},
{[1]=813,[2]=22256,[3]=22303,}}
7508 posts
Location
Australia
Posted 13 June 2014 - 11:51 AM
as natedogith1 said, you could easily add all the items to a single table and then serialise that table out to the file. this will make it very easy for you to read back into the program.
to improve on Ajt86's response
local recipes = {}
local h = fs.open("recipes.txt", 'r')
for line in h.readLine do
table.insert(recipes, line)
end
h.close()
tables:insert won't work 1.63
that won't work in
any version of ComputerCraft, you'll get an attempt to call nil.
26 posts
Location
Essex, UK
Posted 13 June 2014 - 04:03 PM
tables:insert won't work 1.63
that won't work in
any version of ComputerCraft, you'll get an attempt to call nil.
it worked perfectly for me
7508 posts
Location
Australia
Posted 13 June 2014 - 04:26 PM
it worked perfectly for me
no it won't, it will look in the table for a function called `insert` which won't exist unless you create it, if it doesn't find a value in the table it looks in the tables metatable not in the table API regardless of the ComputerCraft version… in summary, the
only time it will work is in this case
local tbl = {}
function tbl.insert( self, value )
return table.insert( self, textutils.unserialize( value ) )
end
tbl:insert( "hello" )
Edited by
496 posts
Location
New Zealand
Posted 13 June 2014 - 04:40 PM
to improve on Ajt86's response
local recipes = {}
local h = fs.open("recipes.txt", 'r')
for line in h.readLine do
table.insert(recipes, line)
end
h.close()
Except you never actually call textutils.unserialize() on the read line
Edited on 13 June 2014 - 02:40 PM
7508 posts
Location
Australia
Posted 13 June 2014 - 05:20 PM
Except you never actually call textutils.unserialize() on the read line
oops, thanks.