[vJASS] Globals and Scopes inside

[Starquizer]

Let me get what I understand straight ... (correct me if I am wrong)

Libraries: will move whats inside it to the top of the map script; whats inside it includes: functions, structs, globals (what else ? )

Scopes: will keep whats inside as it is (i.e. will not move whats inside to the top)

Questions:

1) If scope will keep things as it is why do I add it in the first place ?

2) How a scope inside library will work, will it move whats inside the library to the top and keep whats inside the scope as it is ?

3) How globals inside scopes will function properly; isn't globals supposed to be in the top of the script, the scope keyword will make the global not to move to the top, isn't it ?

 

[Cokemonkey11]

scopes are libraries are meant to hold segments of code.

scope does not serve much more purpose other than to allow privatization of code and define initializer functions.

scopes cannot be inside of libraries.

libraries cannot be inside of scopes.

Hope this helps

 

[Starquizer]

scopes cannot be inside of libraries.

I guess this is incorrect according to the jass helper manual

You can however, have scope inside either library or scope definitions.

(from Jass Helper Manual)

 

[Cokemonkey11]

My mistake then. It's generally an uncommon practice at least. I'm having a hard time thinking of a situation where you'd want to.

 

[Geries]

libraries and scopes are similar except libraries are moved to the top. Globals are independent from these things. They will be ALLWAYS at the top, then libraries, then Global declaration like units, sounds, destructables... Jass functions like structs, scopes. Scopes CAN require libraries and other scopes but libraries CAN ONLY use other libraries. Cause required library will be higher on the priority list, placed upper than the other. But the fact that scopes aren't moved to the top, they can't be declared before libraries. There is no way to put library inside an other library, this way you can't put scope in a library, or a library into a scope.

Libraries also let privatization and they let initialization functions as far as I know

Sorry if it is ununderstandable.

 

[Starquizer]

What I understand from your post is:
Scopes can require library but not be nested inside it


<EDIT>
Another question:

You mentioned Globals then global declaration. whats the difference ?

 

[Geries]

What I understand from your post is:
Scopes can require library but not be nested inside it


<EDIT>
Another question:

You mentioned Globals then global declaration. whats the difference ?

Yes, thats it

with Globals I mentioned global variable declaration and global *value* declaration used in GUI, you know unit variable's, sound variable's, dialog variable's, also integer array variable's values

 

[Starquizer]

with Globals I mentioned global variable declaration and global *value* declaration used in GUI, you know unit variable's, sound variable's, dialog variable's, also integer array variable's values

Ahh ... I remembered something. I took a look at a map script, if I remember correctly in the top was globals and was <TYPE> <NAME> and when skipped down the file a bit I found those variables were set to values like Footman_<0001> or something like that.

 

[Geries]

Ahh ... I remembered something. I took a look at a map script, if I remember correctly in the top was globals and was <TYPE> <NAME> and when skipped down the file a bit I found those variables were set to values like Footman_<0001> or something like that.

Yes, those are...

 

[Starquizer]

Something like that (its from the helper manual)

scope cool
    public struct a
        integer x
    endstruct

    globals
        a x
        public a b
    endglobals


    public function test takes nothing returns nothing
        set b = a.create()
        set b.x = 3
        call b.destroy()
    endfunction

endscope

function test takes nothing returns nothing
 local cool_a x=cool_a.create()
    set a.x=6
    call a.destroy()
endfunction

what will be its location in the map script ?

 

[Geries]

It will be in the mess of other triggers and jass functions( after the global things ). After the scope there will be that function "test". Some struct function will be placed in the header( as libraries ). Globals:

    globals
        a x
        public a b
    endglobals
// and from struct
    integer (array) x

They will be at the top. I am using only libraries so I don't have any problems ^^

 

[Magtheridon96]

That scope will be moved to the end of the map script, but since all the code is public, it will end up at the top.

Scopes shouldn't be used in public resources most of the time.
They allow you to make implicit requirements. (Meaning no one will know what's required and they're obliged to read the documentation.)

Scopes are awesome for map-making though.
Still, I don't use them.
I use structs:

struct System extends array

    // declare globals here

    // methods here

    private static method onInit takes nothing returns nothing
        // init code here
    endmethod
endstruct

edit
@geries, actually it's:

globals
    integer x
    integer cool_b
    constant integer s__a__type = 1
endglobals
//From struct
integer array x

 

[mckill2009]

Libraries is a must do (imo) if you're creating a system, but I usually use Scopes
for simple things like spells and initialization/setup...

globals if NOT private nor public can be used anywhere in the map, only
functions cant do what global does (except structs)...

if you want in the middle, you could edit your code in the Map Header, which is
at the center of order of placement...

orders of placement;
1) Libraries
2) Map Header
3) Scope

 

[Starquizer]

That scope will be moved to the end of the map script, but since all the code is public, it will end up at the top.

public will make it in the top so you can able to call them from anywhere provided you typed SCOPENAME_SOMESTUFF ??

 

[Bribe]

No, it won't. Actually that code will get thrown a syntax error because you can only define the "public" keyword from within a library, scope or struct.