Variable Scope

[Laika.]

A quick question regarding variables. As I create more and more ability effects using triggers and variables for a multiplayer map, I started to wonder about conflicts occuring with multiple instances of the trigger running. Are global variables global across all functions for 1 instance of the map (player), or are they global across all of the players in a multiplayer enivronment?

If they are, I guess I'll have to re-write all my code in jass and use local variables, oh well. =]

Edit: Speaking of JASS, is there documentation on the common JASS functions used in WC3 and variables that effect them (like bj_wantdestroygroup)?

 

[Laika.]

I hate to do it, but <this is a shameless bump.>

 

[AceHart]

> I hate to do it

Well, then don't...


Globals are global indeed.
One single variable, if needed by several players, will be the very same variable for all of them.

This is, however, only a problem if your triggers "wait".
A trigger without "wait" will always finish its actions before any second instance of that very same trigger will run.
If it has to wait, that might mess up some variables if it's called one more time while the first run is waiting...

 

[Persen]

Well, i personally, after some programming experience, prefer to use JASS. I think it gives you more control. Else, it's not so hard to just use some "custom script" lines in GUI. Just create a new trigger, enter some gui lines, convert, and copy/paste.

 

[Laika.]

Ok, thats good to know. I have some programming experience as well, so I guess I should take the JASS plunge... =]

A quick JASS question, in a trigger is it necessary to have a 'condition function'? Or can you omit it if you'd like?

 

[AceHart]

I'd suggest taking a couple of your "normal" triggers,
and use "Edit / Convert to custom text".
You'll know it when you see it