Question about Timers, Structs, and vJass

[Fox536]

So I was wondering about a couple of things in vJass.

1. Can you pass a Struct as parameters?
2. Can you use any existing variable type in a Struct or are there some that wont work?
3. Is there any variable type similar to object, like most modern coding languages? (Yes I know highly doubtful, but I thought I'd ask.)
4. Do Struct function the same as the modern language's Struct? Such as you can only add variables and not functions, and or methods.

Any help on any of these would be great

 

[Garfield1337]

1. Yes, just use struct name
2. You can use any
3. Well...i'm not sure, but variables hold one data instance. Though some variables have members like unit (hitpoints, mana, x, y etc)
4. No, they function as classes, you can add methods too.

 

[Fox536]

Awesome that solves almost everything Yay thanks XD. I was hoping they were more like classes instead of "dumb"/"plain" structs (normal structs are called that in most programming languages lol). I figured as much about the object type lol you never know how awesome something is until you can't have it. I thought of one more question though, what is the base class of units and destructables, is it widgets, and can you damage them both from the base class?

 

[Garfield1337]

It's widget, and yes, you can refer to them as widgets for damage or anything.
You can see such stuff in Jasscraft http://www.wc3c.net/showthread.php?t=80051
It's a very useful tool with a native list. You can see what object does a particular object extend.

 

[Tirlititi]

2. You can't use a variable of type "code" inside a struct (because you can't declare a code array in jass and that structs are basically arrays).

About widgets, yes it is the parent of units, destructables and items.
You can use those two functions for damaging them :

native  SetWidgetLife   takes widget whichWidget, real newLife returns nothing
native UnitDamageTarget             takes unit whichUnit, widget target, real amount, boolean attack, boolean ranged, attacktype attackType, damagetype damageType, weapontype weaponType returns boolean

 

[Garfield1337]

2. You can't use a variable of type "code" inside a struct (because you can't declare a code array in jass and that structs are basically arrays).

Oh right, forgot about code. It can be a static non-array member though.

 

[Fox536]

Thank you both, for the info about the widget I though that it was I just wasn't sure lol

@Garfield why didn't I think of looking it up in Jasscraft lol

@Tirlititi so if I can't use code, is there a replacement, that I could use, such as a method that calls a method that was passed as parameter?

 

[Garfield1337]

Sadly, i don't think you can even call a function from code variable.
There are function interfaces though that let you store functions or methods in a variable (which you can use as a replacement for code variable and it can also be a member of a struct)

 

[Fox536]

Awesome, I think that is the closest I'm going to get to being able to use event-based programming thanks so much, thats what I've been searching for for a few other things as well

 

[Bribe]

You can call a code variable like this:

call ForForce(bj_forcePlayer[0], code)

It runs more quickly than function interfaces and doesn't make a copy of the function it calls unlike function interfaces.

 

[Garfield1337]

You can call a code variable like this:

call ForForce(bj_forcePlayer[0], code)

It runs more quickly than function interfaces and doesn't make a copy of the function it calls unlike function interfaces.

lol
I guess that makes function interfaces useless, doesn't it?
Thanks for showing this, Bribe!

 

[Bribe]

Function interfaces are good for dynamic attachment, because they conceal a lot of the complication, and you can store them into arrays. But yeah they are slower and generate copies of the function for no reason.

I use boolexprs when I need to store a function into an array, because you can make a boolexpr array but you can't make a code array.

You can call a boolexpr like this:

ForceEnumPlayersCounted(force /* this needs to be your own, created force */, boolexpr, 1)