brand new jass beginner +rep for help

[GFreak45]

ok so i have a grasp on the following:
functions
returns
variables (local and global)
scopes
libraries
how the code compiles

is there anything else major i should learn before i really get started with jass? structs? wierd glitches i should watch out for? conditions? if then else functions?

 

[Ayanami]

You definitely should go touch up on If/Then/Else, loops. Also, groups would also be absolutely necessary, as well as Timers. After that, you can start coding basic spells. Then after you get comfortable with JASS, you can move on to OOP concepts (Structs, Inheritance, Interfaces, etc).

 

[GFreak45]

is using timers and groups pretty much the same as using them in gui but with different script?

 

[Ayanami]

It's not really exactly the same. Especially for Timers. I suggest you search around for tutorials.

 

[Dirac]

Using timers in JASS is way easier than in GUI because you don't need a timer to detect when the timer expires, take a look at the timer start function

TimerStart(timer whichTimer, real timeout, boolean periodic, code handlerFunc)

in the [ljass]code[/ljass] you can write any function name, when the timer ends, that function runs.

function Hello takes nothing returns nothing
    call BJDebugMsg("Hello!")
endfunction

function Go takes nothing returns nothing
    call TimerStart(CreateTimer(),5.0,false,function Hello)
endfunction

Functions that handle timer expiration must take nothing and return nothing. For timers there are very useful tools to retrieve data from them once they expire (TimerUtils or T32)

Structs are very important. If you're familiar with array variables then learning what a struct is wont be hard. An example of how a struct really looks like

struct GFreak
    integer value
endstruct

->

globals
    private integer array GFreak_value
endglobals

I've read some struct tutorials and i think some of them really fail hard because they try the user to understand what a struct is without mentioning the word "array" anywhere.
I think i'll write one of my own soon.

 

[luorax]

Tooltiperror has a good tutorial about timers: http://www.thehelper.net/forums/showthread.php/162408

 

[Ayanami]

Anyway, if you're looking for information on Structs, I explained it to someone long ago. Here's the link:

http://www.thehelper.net/forums/sho...ints-System-Not-Working?p=1358735#post1358735

 

[GFreak45]

thanks a bunch everyone, for all of your help

 

[Dirac]

Ayanami's post is a very decent approach to structs, you should submit it before it dies inside the JASS section. If i had to add something to it, it would be how related structs are with common arrays

struct Demonstration
    
    integer value
    
    method setValue takes integer newValue returns nothing
        set this.value=newValue
    endmethod
    
endstruct

->

globals
    private integer array Demonstration_value
endglobals

function Demonstation_setValue takes integer this, integer newValue returns nothing
    set Demonstration_value[this]=newValue
endfunction

 

[GFreak45]

that just confused me super hard

 

[Dirac]

That's because struct tutorials fail to explain it, hence i should write one on my own

 

[Laiev]

Don't care about struct right now, just learn Jass and some basic things at vJass

 

[GFreak45]

i understand i think
a struct is a way of creating variables of your own type that stores vast ammounts of information in multidimensional arrays if so chosen correct?

 

[Dirac]

Yes, the name of the struct encapsulates the amount of arrays inside of it, as well as the methods it contains, therefore you can call structs custom variables, but in the end they're a bunch of common variables and functions piled together.

 

[Laiev]

Also, struct is an integer, so you can always refer it as a integer.

 

[GFreak45]

Ok now that last post re-confused me....

Were u meaning every instance/array of a struct or that they can only store integers?

 

[Dirac]

Array indexes can be only be integers, but you already knew that.
Try reading Ayanami's tutorial and come back if you have any doubts

 

[Laiev]

No GFreak, what I mean is this:

struct data
endstruct

call BJDebugMsg(I2S(data)) //this will show you a number from 0-8191 or so

 

[Dirac]

What? No!

what are integers are the struct instances, struct names lead to nowhere!

 

[Ayanami]

No GFreak, what I mean is this:

struct data
endstruct

call BJDebugMsg(I2S(data)) //this will show you a number from 0-8191 or so

Wouldn't this be an error? Do you mean:

struct Data
endstruct

function Test takes nothing returns nothing
    call BJDebugMsg(I2S(Data.create()))
endfunction