[Solved] playerId length fixed?

[Andmann]

didn't find anything on google:

Do all player Ids have the same length?

Working on a ladder table that is stored in a csv and wasn't sure how to best slice the strings when reading from the file.

 

problem Solved:

function ladder:SliceString(s, c, t)
	t = t or {}
    local subs = ""
	if s == nil or type(s) ~= "string" then
        print(s)
		return t
	else
		local i = s:find(c)
        print("found", c, "at", i)
        if i ~= nil then
            local j = i-1
		    subs = s:sub(1,(i-1))
            print("adding", subs, "to table")
		    s = s:sub(i+1)
        else
            subs = s
            s = nil
        end
        table.insert(t,(#t+1) ,subs)
        print(t[#t])
		return SliceString(s, c, t)
    end
end

 

Edited August 5, 2016 by Andmann
problem solved =)

[Joachim]

I think so, but I wouldn't rely on it. You can easily use a delimiter for CSV files, such as a comma or semicolon. So why bother?

[CarlZalph]

Every Klei ID I have seen is of fixed length, though as Joachim there stated it's better practice to use a delimiter to ensure it's future proof lest you need to reformat your database (not fun).

[Andmann]

you mean with format( formatstring, e1,e2,...) 

edit: no i guess gsub is the one I'm after?

lua is just absolute newgrounds to me ~.~

Edited August 5, 2016 by Andmann

[Serpens]

if you need something to test lua code, you can use this site: http://www.lua.org/demo.html

Or is there even something were we can test gamecode, without starting a game and see logfile for errors?

Edited August 5, 2016 by Serpens

[Joachim]

You can also install Lua on your computer and run standalone scripts. Lua isn't very difficult to learn. While certain tasks are cumbersome in Lua (e.g., the fact that you can't simply copy a table without having to do extra work), most of the time you will find that you can accomplish things pretty easily.

Edited August 5, 2016 by Joachim

[Andmann]

22 minutes ago, Serpens said:

if you need something to test lua code, you can use this site: http://www.lua.org/demo.html

Or is there even something were we can test gamecode, without starting a game and see logfile for errors?

I'll try it thanks.

Well what I do to test my stuff so far is:

local function myfunctin(world, parameters) ...end

  AddPrefabPostInit("world", function() inst:ListenFOrEvent ("myevent", myfunction) end

then start up my dedicated server and use the console with:

TheWorld:PushEvent("myevent", parameters).

It works just fine ^_^

well I just decided to write my own slice (s, c) function that just runs through the string with recursion and uses s:sub(1,(s:find(c)-1)) >_> should do just fine

Edited August 5, 2016 by Andmann

[Serpens]

1 hour ago, Joachim said:

You can also install Lua on your computer and run standalone scripts. Lua isn't very difficult to learn. While certain tasks are cumbersome in Lua (e.g., the fact that you can't simply copy a table without having to do extra work), most of the time you will find that you can accomplish things pretty easily.

talking about copying tables, do you know a deepcopy function that works in DS ?

I just tried:
 

local function clone (t) -- deep-copy a table
    if type(t) ~= "table" then return t end
    local meta = getmetatable(t)
    local target = {}
    for k, v in pairs(t) do
        if type(v) == "table" then
            target[k] = clone(v)
        else
            target[k] = v
        end
    end
    setmetatable(target, meta)
    return target
end

but getmetatable and setmetatable are not known by DS =/

Edited August 5, 2016 by Serpens

[Andmann]

1 hour ago, Serpens said:

talking about copying tables, do you know a deepcopy function that works in DS ?

I just tried:
 

local function clone (t) -- deep-copy a table
    if mytype(t) ~= "table" then return t end
    local meta = getmetatable(t)
    local target = {}
    for k, v in pairs(t) do
        if mytype(v) == "table" then
            target[k] = clone(v)
        else
            target[k] = v
        end
    end
    setmetatable(target, meta)
    return target
end

but getmetatable and setmetatable are not known by DS =/

 

this should do <3

function deepcopy (t)
    local tOut = {}
    if type(t) == "table" then 
        for k,v in pairs(t) do
            if type(v) == "table" then
                tOut[k] = deepcopy(v)
            else
                tOut[k] = v
            end
        end
        return tOut
    end
end


local t1 = {{"a","b","c"},{"d","e","f"}}
local t2 = deepcopy(t1)

print (tostring(t1), tostring(t2))
t1[1][1] = "A"

for k,v in ipairs{1,2,3} do
    print(t1[1][v], t2[1][v])
end

gives me

table: 0x14d6df0	table: 0x14deb50
A	a
b	b
c	c

actually  more importantly

for k,v in ipairs{1,2} do
    print(t1[v], t2[v])
end

 

results in

table: 0x64aa10    table: 0x64ab50
table: 0x64aa90    table: 0x643350

 

 

Edited August 5, 2016 by Andmann
ipairs -> pairs

[Serpens]

@Andmann: Hmm.. it does not give the same result as the clone function =/

 

it tested the following at lua demo:

Spoiler

function deepcopy (t)
    local tOut = {}
    if type(t) == "table" then 
        for k,v in ipairs(t) do
            if type(v) == "table" then
                tOut[k] = deepcopy(v)
            else
                tOut[k] = v
            end
        end
        return tOut
    end
end

local function clone (t) -- deep-copy a table
    if type(t) ~= "table" then return t end
    local meta = getmetatable(t)
    local target = {}
    for k, v in pairs(t) do
        if type(v) == "table" then
            target[k] = clone(v)
        else
            target[k] = v
        end
    end
    setmetatable(target, meta)
    return target
end

tab1 = {}
tab1["in"]={1,2,3}
tab2 = clone(tab1)
--tab2 = deepcopy(tab1)


print("__")
for k,v in pairs(tab1) do
print(v)
end
print("__")
for k,v in pairs(tab2) do
print(v)
end
print("__")

 

Edited August 5, 2016 by Serpens

[Andmann]

yeah apparently it returns an empty table  lol...

the logic should be fine though... it worked in my tests ^^

 

Either I made a copy paste error ( I'm sry) xD or I haven't considered all cases.

- let me check, though why do you need the function if you have clone?

As a matter of fact my function does exactly the same as clone lol... just that I'm not half as good a programmer so I'm missing some checks =D

 

Edited August 5, 2016 by Andmann

[Serpens]

I thougt clone would not work, cause I get a global error for getmetatable.

hm.. I just saw that the game scripts itself also using getmetatable, so it is known by DS. But I get a global error.
With GLOBAL.getmetatable(t) I don't get an error, but I don't know if it works like it should... does it?

Edited August 5, 2016 by Serpens

[Andmann]

as long as you're within modmain  GLOBAL.getmetatable should work just fine.

I have the same with my  i/o operations

so i defined a local io = Global.io

 

my suggestion just add local getmetatable = GLOBAL.getmetatable to the top of your file

that way copy pasting prebuilt functions will probably net you the least mistakes

Edited August 5, 2016 by Andmann

[Serpens]

7 minutes ago, Andmann said:

as long as you're within modmain  GLOBAL.getmetatable should work just fine.

I have the same i/o operations

so i defined local io = Global.io

 

my suggestion just add local getmetatable = GLOBAL.getmetatable to the top of your file

that way copy pasting prebuilt functions will probably net you the least mistakes

yes thanks... I did not expected that behaviour, cause math.max(), type() and other lua functions do work without GLOBAL.

[Andmann]

just if you're interested I fixed the deepcopy... xD

ipairs -> pairs

ipairs iterates through 1 to #table

but you had the key "in" so of course it wouldnt find the table

at least that's what I would gather from the results which is highly interesting because one could use that as a filter for dirty tables :3 ^_^

[Andmann]

I also finished the string slicer  So i guess we can mark this topic as Solved =D

function SliceString(s, c, t)
	t = t or {}
    local subs = ""
	if s == nil or type(s) ~= "string" then
        print(s)
		return t
	else
		local i = s:find(c)
        print("found", c, "at", i)
        if i ~= nil then
            local j = i-1
		    subs = s:sub(1,(i-1))
            print("adding", subs, "to table")
		    s = s:sub(i+1)
        else
            subs = s
            s = nil
        end
        table.insert(t,(#t+1) ,subs)
        print(t[#t])
		return SliceString(s, c, t)
    end
end

[DarkXero]

Line 698 of util.lua, deepcopy.

Lua functions available in the mod environment are defined in the CreateEnvironment function of mods.lua.

Of course, you have global access too.