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How do i define multiple variables at once?
Posted: Thu Dec 04, 2014 4:39 am
by TopDole
I read most of the lua book a while back and have been coding for quite a while but i havent found out how to define multiple variables yet. Does anyone know? Is it even possible?
A couple things I tried that I wish worked:
P1.x, P2.x, P3.x, P4.x = 0
P1.x = P2.x = P3.x = P4.x = 0
Re: How do i define multiple variables at once?
Posted: Thu Dec 04, 2014 6:09 am
by Wojak
Re: How do i define multiple variables at once?
Posted: Thu Dec 04, 2014 9:05 am
by zorg
You can define multiple vars as how Wojak wrote, but you cannot assign one thing to multiple variables at once.
Re: How do i define multiple variables at once?
Posted: Thu Dec 04, 2014 9:38 am
by s-ol
zorg wrote:You can define multiple vars as how Wojak wrote, but you cannot assign one thing to multiple variables at once.
You can write a helper though:
Code: Select all
function all( val, num )
local r = {}
for i=1,(num or 10) do
r[i] = val
end
return unpack(r)
end
-- use
local a, b, c, d, e = all( 0 ) -- for up to 10 vars
local a, b, C = all( 0, 3 )
Re: How do i define multiple variables at once?
Posted: Thu Dec 04, 2014 10:19 am
by Muris
I know this is bit of a derailing thing, but one of the best things I've found about lua is as following:
The swapping is just so brilliant compared to other languages where you usually end up writing a helper function to do it.
Re: How do i define multiple variables at once?
Posted: Thu Dec 04, 2014 10:42 am
by zorg
S0lll0s wrote:
code-snip
Don't forget to
in that helper function though, else anything you define with that will be nil
Also our postcounts were in sync, and will be again if you reply 
Re: How do i define multiple variables at once?
Posted: Thu Dec 04, 2014 12:14 pm
by s-ol
-*Accidental double submit -
Re: How do i define multiple variables at once?
Posted: Thu Dec 04, 2014 12:15 pm
by s-ol
zorg wrote:S0lll0s wrote:
code-snip
Don't forget to
in that helper function though, else anything you define with that will be nil
Also our postcounts were in sync, and will be again if you reply
Whoops, That's what I get for coding on mobile...
yaaaaay 