Problem with the unpack() function

[Gordon_G]

Hello, I've a little problem with the lua unpack function.

This is my code :

-- CLIENT

local loginPanelPos = {
	["globalPanel"] = {0,0,557,400}
}
function showLoginPanel(  )
	a = guiCreateStaticImage( unpack(loginPanelPos["globalPanel"]), "LOGIN.png", false )
end

This is what I'm getting in /debugscript 3

Bad argument @guiCreateStaticImage [Expected number at argument 3, got boolean]

Edited June 4, 2017 by Gordon_G

[koragg]

For some reason it counts the "unpack(loginPanelPos["globalPanel"]" as one argument (doesn't unpack it) and that's why it gives the boolean error at arg3 (I think). Try this:

-- CLIENT

local loginPanelPos = {
	["globalPanel"] = {0,0,557,400}
}
function showLoginPanel(  )
	a = guiCreateStaticImage(loginPanelPos["globalPanel"][1], loginPanelPos["globalPanel"][2], loginPanelPos["globalPanel"][3], loginPanelPos["globalPanel"][4], "LOGIN.png", false)
end

 

[Gordon_G]

I know this'll work but, I'll need to do this for all my guiFunc's I would like to be faster 

Edited June 4, 2017 by Gordon_G

[Hale]

I had the same problem, tried to find a way but there is none I discovered, it just counts it as one argument.

[Gordon_G]

That's so sad, I'll do it manually

[Tails]

You can't use unpack like that if you have other arguments coming after it.

local pos = {100, 200, 300}
setElementPosition(localPlayer, unpack(pos)) -- works
setElementPosition(localPlayer, unpack(pos), false) -- won't work

Nothing can come behind unpack()

So try one of these methods instead:

local x, y, w, h = unpack(loginPanelPos["globalPanel"])
guiCreateStaticImage(x, y, w, h, "LOGIN.png", false)
-- or
local pos = loginPanelPos["globalPanel"]
guiCreateStaticImage(pos[1], pos[2], pos[3], pos[4], "LOGIN.png", false)

I recommend the last one if you're doing it in a render because it is faster, performance wise.

Edited June 4, 2017 by Tails