[Solved] Globals / Constants Issue

[Kakerate]

globals
constant unit G=gg_unit_hfoo_0000
endglobals

• Init
  • Events
    • Map initialization
  • Conditions
  • Actions
    • Custom script: call DisplayTextToForce( GetPlayersAll(), GetUnitName(G))

Display nothing on init. I don't see the issue. Since it displays nothing, I'm assuming G is null on Initialization. What workaround can I use? For a couple of my spells, theres a dummy unit that will cast stuff. I dont want to have to use the gg_unit_ name every time I need the dummy unit.

 

[Chaosy]

Either wait 0.00 seconds or use the 0.00 game time event.

Or, put the globals inside a library, that will make the code appear in the map header and thus exist before the GUI code.
(or just put the globals directly in the map header )

 

[Kakerate]

I guess I should've mentioned that i already tried the wait 0.00 secs on init. Made no difference. Same result with 0.01 Time Elapsed. Kind of odd imo that it bugs this way.

So can you not set constant unit vars to units generated in World Edit?

 

[Wietlol]

Chaosy staph
Globals work everywhere, no matter where you place them

The problem is that your G is initialized before your unit variable so it will be initialized to "null".
You have to make a trigger that runs on map init (or something like that) that will set G to that unit.
Then it will work. (Ofcourse then you dont have a constant.)

 

[Kakerate]

"Then it will work. (Ofcourse then you dont have a constant.)"

Which means its not the solution


Would using Chaosy's idea of a Library work?

 

[Wietlol]

It is a solution, just remove "constant" from your global variable.

And the library idea wont work, it doesnt change anything at all. (Unless it will make G be initialized after the unit which is odd...)

 

[Kakerate]

The whole reason I wanted to use a constant is because the dummycaster unit was always the same unit, a constant. It would let me type less when ordering it to use abilities. Markin a Global Var. to it would just defeat the purpose of having constants in the first place.

Oh well.

 

[Chaosy]

Chaosy staph
Globals work everywhere, no matter where you place them

Never said they didn't work everywhere. I just assumed the variable was compiled 'incorrectly' and put beneath the function/trigger he wants to use. Like trying to call a function which will get unexpected name error.

 

[Wietlol]

But it doesnt matter if you place it below the point where it is used.
Globals are placed in one big ass global block in the JASS script (I think it only allows one) and everything can access it no matter if that global block is placed at the bottom.

 

[ZiBitheWand3r3r]

The problem is that your G is initialized before your unit variable so it will be initialized to "null".

exactly

do like this: (run at map init)

function Trig_Declarations_Actions takes nothing returns nothing
globals
    real CenterX_A
    real CenterY_A    
endglobals

    set CenterX_A = GetUnitX(gg_unit_h01S_0136)
    set CenterY_A = GetUnitY(gg_unit_h01S_0136)
    
endfunction
//========================================
function InitTrig_Declarations takes nothing returns nothing
    set gg_trg_Declarations = CreateTrigger(  )
    call TriggerAddAction( gg_trg_Declarations, function Trig_Declarations_Actions )
endfunction

 

[Wietlol]

Imo, that is kinda ugly.

globals
    real CenterX_A
    real CenterY_A    
endglobals
function InitTrig_Declarations takes nothing returns nothing
    set CenterX_A = GetUnitX(gg_unit_h01S_0136)
    set CenterY_A = GetUnitY(gg_unit_h01S_0136)
endfunction

 

[Bribe]

To compound the problem, you can't even create a unit from a globals block. That's going to crash the main thread, as well.

 

[Kakerate]

@ZiBitheWand3r3r , so I can just declare G but not set it to anything in the globals block? then set it so something? doesn't seem like this would be the case..

 

[PurgeandFire]

@ZiBitheWand3r3r , so I can just declare G but not set it to anything in the globals block? then set it so something? doesn't seem like this would be the case..

Yes. In your case, if you did this:

globals
    unit G
endglobals

And then:

• Init
  • Events
    • Map initialization
  • Conditions
  • Actions
    • Custom script: set G = gg_unit_hfoo_0000
    • Custom script: call DisplayTextToForce( GetPlayersAll(), GetUnitName(G))

Then it would work assuming that gg_unit_hfoo_0000 is defined and appropriately assigned to the corresponding unit (gg variables are only defined once they are referenced through triggers!).

 

[Kakerate]

Alright, so if I do "constant unit G" then I get "Cannot assign to constant G"

but if I do what you show "unit G" then its fine.

Good enough for me. Makes me question why constants are even allowed to be used for units. oh well. atleast I don't have to be typing udg_G or gg_unit_hfoo_0000, which is what I was looking for. Thanks P&F!