"How do I ZScript?"

[Zergeant]

Is there any function to scan the player's view for targets and then return valid targets in an array? Trying to create a weapon that targets several enemies at once. Or is there a better/smarter way to go about this than an array?

[Matt]

So I ended up writing this:

Code: Select all

...
	void drawwepcounter(
		int input,
		int posx,int posy,
		string zero="",string one="",string two="",string three="",
		string four="",string five="",string six=""
	){
		string types[7]={ //let's pretend this works for brevity's sake
			zero,one,two,three,four,five,six
		};
		...
		if(result!="")drawimage(result,...

Is there a way to do this without keeping all those inputs twice, but also not requiring me to enter all 7 values each and every time?

[Blue Shadow]

What are you trying to achieve from that?

[Major Cooke]

Vaecrius: Make a struct and have the struct pass in as the parameter of your function.

Example:

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Struct D4ManualLootParameters
{
    private bool initialized;
    Class<Actor> mo;
    int UpgradeDropChance, UpgradeDropAlways;
    int CrateDropChance, CrateDropAmount, CrateDropAlways;
    int CashChainsawPinata, CashAmount;

    void Init(Class<Actor> th = null, int upchance = -1, int updrop = 0, int cdchance = 0, int cdamt = 0, int cddrop = 0, int ccp = 0, int ca = 0)
    {
        mo = th;
        UpgradeDropChance = upchance;
        UpgradeDropAlways = updrop;
        CrateDropChance = cdchance;
        CrateDropAmount = cdamt;
        CrateDropAlways = cddrop;
        CashChainsawPinata = ccp;
        CashAmount = ca;
        initialized = true;
    }
    
    bool CheckInit()
    {
        return initialized;
    }
}

// Now have a function accept it somewhere on an actor.
// You only need 'in out' if you intend on modifying it directly with the function. 'in' is required for passing structs last I tried.
void Add(in out D4ManualLootParameters Loot)
{
//...
}
 

Or you could have it all be just 'in out' in your code but that might get a little messy.

[Matt]

Thanks, MC, though it looks like it'll necessarily be a few more steps than what I've got.

I'm trying to set up a function that reads an integer and displays a different sprite depending on the value. It's mostly for weapon fire settings so I almost never have more than 3 or 4 (including "not applicable" so practically only 3).

[zrrion the insect]

I am attempting to check the inventory of every player but I am getting the error "Return type mismatch." What could be causing that?

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for (int i = AAPTR_PLAYER1; i < AAPTR_PLAYER8; i << 1)
{
	if (CountInv("clip", i) >= 3)
	{
		//thing
		break;
	}
	else
	{
		//other thing
	}
}

[Gutawer]

We'll need to see the entire function to determine that, since return type mismatch errors can only really be debugged when the return type is known.

[zrrion the insect]

It is returning names, I forgot to return a name outside of any for/if and now that I've put that there it is working correctly.

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override name myname()
{
	for (int i = AAPTR_PLAYER1; i < AAPTR_PLAYER8; i << 1)
	{
		if (CountInv("clip", i) >= 3)
		{
			return 'name';
			break;
		}
		else
		{
			return 'othername';
		}
	}
	return 'finalname';//I forgot to include this one, forgetting this breaks it
}

[Matt]

How do you read a user cvar from inside a statusbar (or anything with a ui scope)?

[Nash]

Code: Select all

class MyHUD : BaseStatusBar
{
    override void NewGame()
    {
        if (CPlayer)
        {
            AttachToPlayer(CPlayer);
        }
    }
    
    void DrawSomething(void)
    {
        if (CPlayer && CPlayer.mo)
        {
            // check a CVar
            CVar myCVar = CVar.GetCVar("cl_mycvar", CPlayer);
            if (myCVar)
            {
                // do stuff
            }
    }
}
 

CPlayer is a PlayerInfo, in case you're not using a status bar.

[Matt]

Thanks, I'll give it a try.
EDIT: Doesn't work. Always returns true if found. Is there any way to get the actual value?


Is there a way to rotate an image in a status bar (ideally arbitrarily but 90-degrees would be helpful too)?

[Rip and Tear]

Is it possible to create a custom action function that is available to all actors?

[Blue Shadow]

Mark the function as static and pass the actor to it as a parameter. Example:

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class Blah : Actor
{
    static int GetBlah (Actor mobj)
    {
        return mobj != null ? mobj.health + Random(1, 10) : 0;
    }
}

class DoomImp2 : DoomImp
{
    override void PostBeginPlay ()
    {
        Super.PostBeginPlay();
        int blah = Blah.GetBlah(self);
        Console.Printf("%d", blah);
    }
}

[Major Cooke]

Inheriting from actor isn't necessary, I don't think. You will need the play keyword though.

Alternatively a struct can be used.

[Matt]

1. How do I set up an inventory item that does not inherit from Weapon or Ammo (or a key) so that it would be given with ID(K)FA?


2. Is there a way to override or somehow get around an Ammo item's get-parent function so that you can have something like:

MyAmmo0:Ammo
MyAmmo1:MyAmmo0
MyAmmo2:MyAmmo0

in which MyAmmo1 and MyAmmo2 are distinct items?