LÖVE

spir wrote:You'll find a complete discussion of the topic (I mean your thread title) and its problems in the online Lua manual (it's for lua 2.0, but still mostly up-to-date).

manual: http://www.lua.org/pil/#online

serialisation: http://www.lua.org/pil/12.html

A few questions:

1. Are the keys all ids (strings)?

2. What are the values?

3. Are there table values? If yes, you'll need a recursive func to serialise sub-tables.

4. If yes, are there possible shared tables? If yes, to avoid multiple serialisation, you need a way to identify shared (sub-)tables, namely their names.

5. If yes, are there possible cycles? If yes, same thing.

You can easily write a table serialisation func covering sub-tables (point 3.) and keeping a list of already-seen tables (references, in fact), then when meeting one write an erroneous placeholder such as "<shared>" which will cause an error on reloading and tell you about the issue.
More help if needed.

I don't understand much about the rest of your post...

Denis

Mario-Fan wrote: Erm, I want the program to put numbers into the tables in the text file and then be able to load them. I want it to save the times in the song when you have to press a button, if that makes any sense. I tend not to think about programming terms since I don't discuss programming all that much because most of the people from the forum I come from that have any good experience in programming use other languages, so I don't really understand most of your post. What I do understand is that in this game, I'm not planning on having tables in tables and that I want number values in the tables, not strings.

write_table = function (t)
   print ("{")
   for k,v in pairs(t) do
      print(k .. " = " .. v .. " ,")
   end
   print "}"
end

t = {a=1 , b=2 , c=3}
write_table(t) -->
--[[
{
a = 1 ,
c = 3 ,
b = 2 ,
}
]]

spir wrote:

Mario-Fan wrote: Erm, I want the program to put numbers into the tables in the text file and then be able to load them. I want it to save the times in the song when you have to press a button, if that makes any sense. I tend not to think about programming terms since I don't discuss programming all that much because most of the people from the forum I come from that have any good experience in programming use other languages, so I don't really understand most of your post. What I do understand is that in this game, I'm not planning on having tables in tables and that I want number values in the tables, not strings.

Then, it should be far easier. If you want to edit the file content by program, then maybe do not indent the text. Something like:

Code: Select all

write_table = function (t)
   print ("{")
   for k,v in pairs(t) do
      print(k .. " = " .. v .. " ,")
   end
   print "}"
end

t = {a=1 , b=2 , c=3}
write_table(t) -->
--[[
{
a = 1 ,
c = 3 ,
b = 2 ,
}
]]

(Note the disorder .)
To edit, read the file's lines into a table (function file.lines, removes newlines) and do your string processing. Then re-concat (with newline) and rewrite into the file.

Denis

write_table = function (t)
	local string = "{ "
	for k,v in pairs(t) do
		if v < #t then -- it never thinks this is true
			string = string .. k .. " = " .. v .. " "
		elseif v > #t then -- it always thinks this is true
			string = string .. k .. " = " .. v .. ", "
		end
	end
	string = string .. "}"
	print(string) -- When the table's {a=1, b=2, c=3}, it produces { a = 1, c = 3, b = 2, } I don't understand the order, but when a, b and c are numbers it's in the normal order
end

Wojak wrote:you can do it like this:

Code: Select all

 string = string.gsub (string,", }"," }") 

(“{ a = 1, c = 3, b = 2, }” should turn into “{ a = 1, c = 3, b = 2 }”)

Wojak wrote:the text file is ok, the sound file is the problem...

You are using love.filesystem.exists on a sound file, while the file will exist only inside the love file...
You are using a “static” mode for a file 3MB large (I recommend "stream" )