Lua Question concerned with tables.

[Hermes]

Hi. There's following situation:

local table = {
	{1, 2} = {firstNumber = 150, secondNumber = 20},
	{3, 4} = {firstNumber = 120},
	{5, 6} = {secondNumber = 80}
}

I need function, that will return sum of firstNumber and secondNumber according to value, where "value" matches one of the values in first tables (in this case values are 1 or 2, 3 or 4, 5 or 6).

And what is the best way to do such operations on tables? I mean, to search through multiple tables that are relative to different values?

Thanks in advance & regards and stuff ,
Hermes

 

[artofwork]

I think you should learn lua, its not hard

LUA: really for Beginners

http://lua.gts-stolberg.de/en/index.php?uml=1

 

[Hermes]

@up
Aff, I think you should leave this forum if you want to write such posts here, it's not hard
My question is about certain situation and I have no idea how to do that, so I am asking. I know lua enough to write scripts freely, but there are some conditions that I have no idea about.

 

[artofwork]

@up
Aff, I think you should leave this forum if you want to write such posts here, it's not hard
My question is about certain situation and I have no idea how to do that, so I am asking. I know lua enough to write scripts freely, but there are some conditions that I have no idea about.

Well i guess you don't know enough Lua to write scripts freely..

That is why i suggested that you "learn" Lua.

Its called constructive criticism, knowing how to make modifications to a script is not knowing the language.

As you stated there are certain situations you don't have any idea about, by going over just the basics of lua you will find the solution to your problem.

Learn how to trouble shoot an issue instead of giving up and looking to others for the answers.

 

[Cykotitan]

local value = 1
local table = {
	{{1, 2}, 150, 20},
	{{3, 4}, 120},
	{{5, 6}, 80}
}

for _, v in ipairs(table) do
	if isInArray(v[1], value) then
		return v[2] + (v[3] or 0)
	end
end

 

[Colandus]

local t = {
	[{1, 2}] = {firstNumber = 150, secondNumber = 20},
	[{3, 4}] = {firstNumber = 120},
	[{5, 6}] = {secondNumber = 80, 343, shitNumber = 111}
}

local search = 1

for k, list in pairs(t) do
    if(isInArray(k, search)) then
        local sum = 0
        for _, v in pairs(list) do
            if(tonumber(v)) then
                sum = sum + v
            end
        end
    end
end

 

[Cykotitan]

oWW! table as index

 

[Hermes]

@Colandus, Cykotitan
Thank you . Now I understand how pairs() work. Of course rep'd.

 

[Cykotitan]

ipairs are faster

 

[Colandus]

ipairs are faster

who the fuck cares? we're not makin an OS