[Lua] Table function

Jonathin

I like to cycle arrays backward and forward and I do it so often, I wrote a function that does it, so I save a little bit of time.

p, li { white-space: pre-wrap; }

function cycletable(w,orig)

if w:lower() == "next" then

table.insert(orig,orig[1])

table.remove(orig,1)

elseif w:lower() == "previous" then

table.insert(orig, 1, orig[#orig])

table.remove(orig, #orig)

end

end

Usage is:
  cycletable("next", tablename) to cycle forward
and
  cycletable("previous", tablename) to cycle backward.

Because it's doing something funky to my formatting above, here is a pastebin.

Shecks

I've never had to do this... Or if I did, I just used a backwards FOR loop.

Cesarina

@Jonathin Can you give an example or 5 of what you'd use this for. I like efficient stuff but I can't think of what you'd need it for.

Jonathin

It's for things like a list of targets.

targets = {"mosr", "cesarina", "shecks"} and it'll cycle forward and backwards through the list.

I use it for things like ship weapon handling, targets, offence-type (1v1, gank, raid). I prefer to use this kind of thing rather than an alias because I can assign it to a macro and just cycle.