calling multiple things in functions

[skyHights]

Adding to my long list of questions (you can probably guess what I'm doing by looking at them )

Anyway, to draw a polygon you just keep adding more and more points:

Code: Select all

love.graphics.polygon( mode, ... )

How would you do that with a function, and is it possible to do that with two different variables, i.e.

Code: Select all

function a(b, c)
      -- do whatever
end

a(b, c, d, e, f, g, h, i)

Kinda like that?

And then how would you handle them?


(also, how would one go about see their previous topics created?)

[Nixola]

You can define a "vararg" (that's their name, if I recall correctly) function like this:

Code: Select all

function a(b, c, ...)
  local args = {...} --not required, you could use the select function instead of a table
  --do whatever
end

The three dots inside the function will be a list of the arguments "past" b and c; so if you called a(1, 2, 6, "foo", nil, "bar") the second line will behave as if it was `local args = {6, "foo", nil, "bar"}`.

[ivan]

The easiest way would be:

Code: Select all

function a(...)
  local t = { ... }
  -- t[1] = first parameter, t[2] = second parameter, etc
end

how would one go about see their previous topics created

Click on "Posts: 50" under your avatar.

[Positive07]

Try this too!

Code: Select all

a = function (...)
   for i=1, select("#", ...) do
      local var = select(i, ...)
      print(var)
   end
end

a("whatever", 1, {}, function () end, 3239, 0xff, "0x00", a)