Structs vs Globals

[sinners_la_b]

Now that we have scopes and such why even use structs if we can use globals. With globals i dont need ABC or any other system to pass the struct from one function to another. So why not just use globals.

sinners

 

[U are a noob]

Now that we have scopes and such why even use structs if we can use globals. With globals i dont need ABC or any other system to pass the struct from one function to another. So why not just use globals.

sinners

I thought structs are globals.

 

[Doom-Angel]

i think it's because structs won't cause the same problems with MUI as globals does though im not an expertin structs so i don't know for sure....

 

[Cohadar]

http://www.wc3campaigns.net/showthread.php?t=97732

 

[Vexorian]

Ignore Cohadar's link, it is totally unrelated to your question.

Your question is quite lame, it is mostly like "why not use a fork instead of using a knife"? You are kind of making a false dichotomy as if globals and structs were meant to solve the same problem, when they are meant to solve different problems.

In short, your post seems to come from a huge misunderstanding on what structs or globals are. Please post some of your code in which you "replace structs with globals" so it is easier for us to prove you wrong.

 

[chovynz]

How about explaining in laymans terms how to use the two?

 

[The_Kingpin]

Structs are actually global arrays, so.... yeah....

 

[Cohadar]

Ignore Cohadar's link, it is totally unrelated to your question.

Vexorian is right here, I gave the wrong answer.
Or perhaps you made the wrong question sinners_la_b.

@Uareanoob
Structs are not globals, they are globals + methods + create + onDestroy + ...

@chovynz
There are a lot of tutorials on the subject of structs no need to explain that in here.

 

[Silvenon]

http://www.wc3campaigns.net/showthread.php?t=97732

Is that your ABC?? What a surprise! You really don't post your ABC as an answer to every question. (Q: "hey, how do I create a unit?" A:"use my ABC")

Or perhaps you made the wrong question sinners_la_b.

There are no wrong questions, just wrong (stupid) answers.

@Uareanoob
Structs are not globals, they are globals + methods + create + onDestroy + ...

He meant the base of structs ffs. You said "structs are not globals, they are globals.....". Hahaha!!

 

[Cohadar]

Now that we have scopes and such why even use structs if we can use globals. With globals i dont need ABC or any other system to pass the struct from one function to another. So why not just use globals.

sinners

Now he specifically used ABC in his question for no reason.
Do not talk about ABC with no reason or I send some people to deal with you...
:shades:

----------------------

Structs are NOT globals, they are parallel global arrays (synchronized with .this) + an internal array indexing capability.

STRUCTS ARE INTEGERS.

 

[TheDamien]

It seems this is more about handle attachment vs globals than structs vs globals.

 

[sinners_la_b]

Cohardar i just used ur system as an example becuase thats what i use to pass structs from one function to another sorry if i upset you.

Now, i was at the understanding that structs were created to stop using handle vars and such (this is probably wrong) however i still need to use 'a' system that passes the structs from one function to another.

so like this

scope wateva
globals

unit c

endglobals

function 2 takes nothing returns nothing

// do wateva to c

endfunction

function 1 takes nothing returns nothing

set c = GetTriggerUnit()
call 2()
endfunction
endscope

in the above i dont need to pass the structs from one function to another
however if i used structs i would.

Maybe i am getting the completely wrong idea here lol (wuldnt be the first time)

woot 100 posts

sinners

 

[TheDamien]

If you wanted to transfer multiple variables, you would have to use multiple globals. If you used structs, you would only need one global variable (an integer) to pass the data.

You only need to attach things to handles if there is going to be some sort of delay between one function and the other (as in the case of timers, triggers, etc).

 

[Silvenon]

Structs are NOT globals, they are parallel global arrays

So global arrays aren't globals? Oh, too bad.

I think what you meant to say is that they aren't just globals, they have many other components

 

[Cohadar]

So global arrays aren't globals? Oh, too bad.

I think what you meant to say is that they aren't just globals, they have many other components

No I specifically did NOT want to say just.

Global arrays being the only method of allocating memory in jass are used for struct implementation, that is totally specific to jass and does not exist in other programming languages.

If there was an alternative memory allocation in JASS (like it exists in normal programming languages) there would be no need to use globals to make structs.

Globals just happened to be the solution in this case, and are absolutely not necessary to make structs speaking in general terms.

Therefore structs are NOT globals, and not even with just attached.

Maybe i am getting the completely wrong idea here lol (wuldnt be the first time)

Yes and no.
Structs were not made to replace handle vars.
They were made to give more power to jass programming.
Structs are nothing more than a cloning of stuff from normal programming languages like c++/java/c# ...

You CAN use structs or globals to avoid attaching to timers
(as shown in the link I gave above)
But it is too much of a hussle if you ask me.
(just look at the link)

Now I want to make this very clear:
I use structs/globals for timers when speed is absolute requirement,
I made a physics(jumping) system with structs alone (no ABC)

But in day to day spellmaking I use ABC because it is so much easier to use simple ABC function calls than to mess with all that array stuff.
(again look at the above link)

ABC also has a benefit of being a "fool-proof" system,
witch means that it has built in error control, so it is virtually impossible to make errors with it without getting a message.

And lastly structs/globals will not help you when you need trigger attachments, and what better system to use for that than ABC

 

[Pyrogasm]

Before you all eat each other with linguistic technicalities:

What do structs consist of? Global arrays.
How are the structs themselves referenced? As integers.

 

[Cohadar]

Excuse me but terminology is extremely important in programming.

A consist of B <> A is B

 

[Vexorian]

How about explaining in laymans terms how to use the two?

The problem I have with explaining things in layman terms is that it forces me to lie.