How can I access&change variable between lua files?

[Exeus]

Hi!

I need to access variable that has to be shared between two lua scripts


talkactions/a.lua

for key, player in ipairs(players) do
player:sendTextMessage(MESSAGE_STATUS_DEFAULT, tostring(GLOBAL_CURRENT_SOMETHING));
end

creaturescripts/b.lua

onLogin(player)
player:sendTextMessage(MESSAGE_STATUS_DEFAULT, tostring(GLOBAL_CURRENT_SOMETHING));
GLOBAL_CURRENT_SOMETHING += 1;

global.lua

GLOBAL_CURRENT_SOMETHING = 1

unfortunely in a.lua it's always 1, meanwhile in b.lua it changes its value

how can I share that value between those files?

I tried using

local globals = require("global");

or

local globals = require("../../../global");

in both of them, but both fail module 'global' not found:

 

[zbizu]

just don't write "local" and it will be global automatically (unless it was declared as local before or is function argument)

if you need to load it before other scripts, either go to data/global.lua or declare it in data/lib

there is no += operator in lua 5.1 and 5.2 as far as I know (you have to do it the "v = v+1" way)

 

[Exeus]

@zbizu

But in data/global.lua I didn't use local keyword at all

it just GLOBAL_CURRENT_SOMETHING = 1;

 

[Sarah Wesker]

Basic | Lua Guide

stigmax.gitbook.io

Operators | Lua Guide

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[zbizu]

then your variable is either misspelled or overwritten somewhere else because on 1.3 it works fine


global.lua

testglobal = 0

some talkaction script

testglobal = testglobal+1
print(testglobal)

some creaturescript onLogin

testglobal = testglobal+1
print(testglobal)

 

[Infernum]

This absolutely does not belong in this section, you've been here since 2012, you should know if you're asking for help it belongs in support board by now. To answer the question, if you're using any version pre-1.0, this is impossible, because each interface has its own environment which makes _G un-editable cross-interface. Otherwise, the previous answers should suffice, you simply just do not define the variable as local and it is inserted into _G.