Defining a random x

[Damascus]

Right, I know that, but I haven't found any guides for setting x equal to something. Do I literally just:

SetEntityActive("orbpiece_emerald_"+GetLocalVarInt("OrbPiece");, true);

or

for x = GetLocalVarInt("OrbPiece");
SetEntityActive("orbpiece_emerald_"+x, true);

Sorry, I'm sure this is very obvious to you, but I haven't done a lot of work with using i or x outside of "for" loops, and I'm fairly sure that doesn't apply in this situation. I'm totally in the dark for how to define "x" as a local variable.

Or now that I think on it some more, it might just be easier to bypass the whole local variable nonsense and do this:

SetEntityActive("orbpiece_emerald_"+RandInt(1,4), true);