[SOLVED] Execute local function by name from table

So I have a table with function names and I need to select a random one from them and execute it. This works:

Code:

local randomFunction = toggleDamages[math.random(#toggleDamages)] --select random function from table
load(randomFunction.."()")() --execute it

But only on global functions. Alternatively:

Code:

local randomFunction = toggleDamages[math.random(#toggleDamages)] --select random function from table
_G[randomFunction]() --execute it

Also works only on global ones.
Is a similar thing possible with local functions? Or do I have to keep my ones global? I know about loadString but it doesn't work in the game as it uses LUA 5.1 and that was added in 5.4, and not sure if it would have worked anyway.

 

The table I am using is variable, can have or not have certain functions in it, can even be empty, so they need to be called by name specifically instead of a number like this. Also can't put the whole function code in a table as they are hundreds of lines long, I would need 1 line dummy functions that call those functions and do nothing else.

 

I didn't think of it, this could work, thanks!

 

That still only works if the declared functions are global... It just changes the functions that I need to make global, previously the main ones, now the ones in the table

 

The reason why it might not be working is that the Functions table needs to appear after the declared functions and not before. So it should look something like this and you only need to add the functions to the table like this:

Code:

local M = {}

local function F1()
    print('F1')
end

local function F2()
    print('F2')
end

local Functions = {
    F1,
  F2
}

local function onExtensionLoaded()
    if tableSize(Functions) == 0 then return end
    Functions[math.random(tableSize(Functions))]()
end

M.onExtensionLoaded = onExtensionLoaded

return M

 

The problem in my case is that the table with functions needs to be editable from the js side, I need to dynamically insert and remove functions from it... How do I know if they are declared at the moment of executing the function from js that adds or removes them?

 

This should do the trick. So to add a function, call addFunction("function name"). Remove a function using removeFunction("function name"). Get all functions with getFunctions(). And call a function with callFunction("function name") and callRandomFunction() for random function. You want to add all the possible functions that can be used in the fullFunctionsLists table.

Code:

local M = {}

local function F1()
    print('F1')
end

local function F2()
    print('F2')
end

local function F3()
    print('F3')
end

local fullFunctionsLists = {
    ['F1'] = F1,
    ['F2'] = F2,
    ['F3'] = F3
}

local functions = {}

local function addFunction(func)
    if fullFunctionsLists[func] then
        functions[func] = fullFunctionsLists[func]
    end
end

local function removeFunction(func)
    functions[func] = nil
end

local function getFunctions()
    return functions
end

local function callFunction(func)
    if functions[func] then
        functions[func]()
    end
end

local function callRandomFunction()
    functions[tableKeys(functions)[math.random(tableSize(functions))]]()
end

local function onExtensionLoaded()
    --if tableSize(functions) == 0 then return end
    --functions[math.random(tableSize(functions))]()
end

M.addFunction = addFunction
M.removeFunction = removeFunction
M.getFunctions = getFunctions
M.callFunction = callFunction
M.callRandomFunction = callRandomFunction
M.onExtensionLoaded = onExtensionLoaded

return M

And here's some JS side code for using this for example (assumming calling GE Lua functions):

Code:

bngApi.engineLua('scripts_test_extension.addFunction("F1")');   
bngApi.engineLua('scripts_test_extension.addFunction("F2")'); 
bngApi.engineLua('scripts_test_extension.addFunction("F3")'); 
bngApi.engineLua('scripts_test_extension.callRandomFunction()');    

 

This will do, thanks!
EDIT: It works!!! I will credit you in the mod, if I forget then remind me!

 

Good to know it actually works