"How do I ZScript?"

[AFADoomer]

What's stopping you from just overwriting/assigning to "target" directly?

Nothing. Target is the actor's shooting target, though, not the movement goal.

They are related in use, though. A_Chase is set up so that the actor will only move toward the goal when target is set to goal, but that "target = goal" assignment is handled internally... A_Chase sets the target to the goal as needed if the actor has a goal set, but only when there is no shooting target (or bChaseGoal is true).

[Rachael]

Question: what is for (;;) and why is it used that way?

"for (;;)" simply creates an infinite loop. It's like doing "while (true)" really - the two are quite interchangeable. It simply creates a loop that continuously executes with no conditional ending. Obviously, such a loop should contain delays of some sort to allow other operations to take place while the loop is in effect.

[Gutawer]

(Assuming this is in an actor, and that you want to set that actor's goal)

Code: Select all

            goal = goalobjectpointer;
            bChaseGoal = True; // equivalent to the "don't chase target" flag - or just leave it off for normal behavior.

I had tried this, and it wasn't working giving a Expression must be a modifiable value error... turns out my problem wasn't setting the goal, it was that I was tired and attempting to change the pointer from the play context, heh. Thanks anyway, though.

[Agentbromsnor]

I'm trying to control the player-animations in my platform-game using ZScript, and I can't figure out how to call the actual frame-states (standing, walking, jumping etc.) from a void function. Can someone educate me on that?

Edit: The "SetStateLabel" function is apparently what I'm looking for.

[hfc2x]

How can you read a value from a Custom Actor Property and use it as a variable in an anonymous function?

[ZzZombo]

Code: Select all

    let actor=<actor class>(<actor pointer>);// access actor.<custom variable> next how you wish.

?

[Accensus]

Actually no need for a pointer. Just use the property directly as you'd a DECORATE expression, i.e. Health.

[ZzZombo]

Ah, if it's being used inside the class that defined it, then yea.

[AFADoomer]

Ah, if it's being used inside the class that defined it, then yea.

Or "cast" the pointer as the class, then use it...

Assuming your actor is of class MyClass:

Code: Select all

// Like you said, this *won't* work except from inside the actor
theactor.newvariable = 5

// But this *will* work from wherever...
MyClass(theactor).newvariable = 5;

[Nash]

Yo how do I compare if string a == string b? For example, if (a == "apples") ?

strcmp doesn't seem to exist in ZScript? :S

Code: Select all

// compile error, function not found
if (String.strcmp(stringVar, "apples") == 0)
{
}
 

[Gutawer]

== works. If you need it to be case-insensitive, ~==.

[Nash]

Holy crap, that's the first time I've ever heard of how that is supposed to even work. :O Thanks!

[hideousdestructor]

How do you do the equivalent of summonfriend?

This doesn't work - they'll only target each other and other monsters, but not deathmatch opponents:

Code: Select all

	actor bbb=spawn("DoomImp",pos);
	bbb.bfriendly=true;
	bbb.master=self;
	bbb.friendplayer=AAPTR_DEFAULT;

EDIT: Had to make this explicit:

Code: Select all

	bbb.designatedteam=self.player.getteam();

[ZzZombo]

"friendplayer" is an index of the "owner" player, that is, you use AAPTR_DEFAULT wrong. Your setup may or may not work by chance due to that.

[hideousdestructor]

Thanks, good catch - I totally forgot to consider that what with my adventures in mousecrash wackyland. (see closed bugs forum)

Another weird problem: I've got this code:

Code: Select all

...
        thinkeriterator it=thinkeriterator.create("HDWeapon");
        HDweapon hdw;
        while(
            hdw=HDWeapon(it.Next())
        ){
            if(hdw.owner==self){
                int blx;
                if(hdw is "Lumberjack"){
                    blx+=100;
                    if(hdw.weaponstatus[1]>=0)blx+=BLOX_BATTERY_LOADED;
                }else if(hdw is "HDPistol"){
... 

and so on, with each "HDWeapon" owned by the caller adding a different value to "blx".

Which works fine, except this ends up with "blx" being some obscenely high number unless I explicitly reset it with "int blx=0". Why is this? Shouldn't that int be re-initialized every time that block is run?