OOP-like programming in Galaxy

[The Reborn Devil]

I dunno if anyone else have made a thread like this, but here goes.

As most of you know you can create structs in Galaxy. Not vJASS structs, but C structs. These structs are like this:

struct WAI {
    unit u;
    fixed x;
    fixed y;
    fixed z;
};

Those of you who do C programming know you can't make constructors, but you can cheat >

int Total = 0;
wai[100] WAI;

struct wai {
    unit lol;
    int pointer;
    bool b;
};

void InitWai(unit lol) {
    WAI[Total].lol = lol;
    WAI[Total].pointer = Total;
    WAI[Total].b = false;
    Total+=1;
}

By default all members will have their default values, i.e ints are 0, fixed are 0., units are null, etc.

When you destroy one of them just do like this:

wai[100] WAI;
int Total = 0;

struct wai {
    unit failzor;
    int pointer;
    bool b;
};

void Destroy(int which) {
    WAI[which].failzor = null;
    WAI[which].pointer = Total;
}

Now you're probably wondering "What's the pointer for?". Well, since we can't do "WAI = WAI[Total]" we must then just point to the one at the end of the list. "What about that boolean?", well, to prevent doing stuff to one struct twice or trice or whatever we can then set a structs "b" to true and then each time check if it's true, if it is then skip it. The problem is that at the end you must run another loop to set them to false again so it won't skip everyone at the next loop. Hopefully Blizzard will let us do stuff like "WAI = WAI[Total]" in the release of SC2.

Well, that's all. If there's anything wrong or if you got some kind of awesome solution to the destruction of structs then feel free to post about it here.

Have a nice day!



Edit: Ohsh-, forgot to say that I think it's best (for now) to do it like it's done in vJASS. Just tons of arrays.

 

[Element of Water]

"++" doesn't work. You have to use "+= 1".

we can't do "WAI = WAI[Total]"

That's a good thing. It stops stupidity. Since structs aren't handles or pointers, that operation would copy the struct. With a big struct, that's a very costly operation. You should use pointers for that kind of thing.

 

[The Reborn Devil]

Pointers aren't implemented yet either, but some site claims it will be added. That you can use the operators "&" and "*" like "wai* w = &some wai;"

 

[BlinkBoy]

Pointers aren't implemented yet either, but some site claims it will be added. That you can use the operators "&" and "*" like "wai* w = &some wai;"

completely the contrary, before patch 9, there were pointers, but blizzard erased them from all existance, for the shake of being more evil to coders .

 

[Yin-Yang]

So... how does one actually go about using Galaxy script?

 

[s3rius]

So... how does one actually go about using Galaxy script?

That's a good question.

I still have to find out how to write my own custom script functions / structs in Galaxy without relying on stupid GUI (functions don't even work in GUI ~~).

 

[Dr Super Good]

THey removed pointers probably due to the potential abuse they could have. Afterall in WC3 people turned harmless code data into viruses.

 

[Element of Water]

They could at least make their own memory space just for the map, that pointers point to
memory in, So they're not pointers to actual system memory, but rather pointers to a big
stack of memory emulated by the game. That would be the obvious solution. Seriously,
pointers are NECESSARY if they allow structs...

 

[M0RT]

Maybe they will add Java-like pointers for structs, they are much easier to work with.

 

[Element of Water]

I've never used Java before, so I don't know what you mean. My area is C/C++.

 

[M0RT]

Well in Java, every variable is a 1-level pointer, you can't do anything with that (so far I know). You don't use any special symbols, you can't use (somePointer+1)*

 

[The Reborn Devil]

They should put the pointers back again imo. Or just give us classes and not structs..