"How do I ZScript?"

Kinsie · Post by **Kinsie** » Sun May 07, 2017 10:15 am

Has anyone looked into removing that thing where sound gets disabled when the time freeze powerup is active? I was able to disable the pausing of music, but came up blank on everything else.

D2JK · Post by **D2JK** » Sun May 07, 2017 12:12 pm

Heh, thanks Gutawer... I'll give that a try.

I suspected the solution was more complicated than previously, but it would have taken me a good while to figure that out.

cotton_disciple · Post by **cotton_disciple** » Mon May 08, 2017 5:02 am

How to get powerup.duration as integer for statusbar?

EDIT: found. use something like InvulnerabilitySphere

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CPlayer.mo.GetEffectTicsForItem(powerupgiver)

Matt · Post by **Matt** » Mon May 08, 2017 10:14 am

How do you search for a specific item in the player's inventory and interact with its properties?
(I think there was an answer for this upthread but I recall that answer involving a rather expensive-looking ThinkerIterator)

Gutawer · Post by **Gutawer** » Mon May 08, 2017 11:14 am

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<actor>.FindInventory("class name")

will give you a pointer to the item.

Jitan · Post by **Jitan** » Tue May 09, 2017 12:40 am

Kinsie wrote:Has anyone looked into removing that thing where sound gets disabled when the time freeze powerup is active? I was able to disable the pausing of music, but came up blank on everything else.

In Zscript Its seems S_PauseSound used to pause the sound while S_S_ResumeSound(false) used to resume the music/sound effect ?
I unable to confirm this.

Kinsie · Post by **Kinsie** » Tue May 09, 2017 6:10 am

Jitan wrote:
Kinsie wrote:Has anyone looked into removing that thing where sound gets disabled when the time freeze powerup is active? I was able to disable the pausing of music, but came up blank on everything else.
In Zscript Its seems S_PauseSound used to pause the sound while S_S_ResumeSound(false) used to resume the music/sound effect ?
I unable to confirm this.

Removing those lines disabled the music pausing. The sound remained frozen.

vidumec · Post by **vidumec** » Wed May 10, 2017 10:08 am

Im trying to make a dynamic crosshair, that reacts when player shoots.
1. Is there a way to make it react to A_GunFlash of any weapon?
2. Is there some other way to know when player actor is shooting? Like when player's sprite gets illuminated by A_Gunflash?
3. If neither are possible, then how about making it react when player's weapon enters a "Fire"/"Hold" state? In which case, how do i point InStateSequence to player's current weapon actor? Like

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if ( blablabla &&  Player.CurrentWeapon.InStateSequence(Player.CurrentWeapon.CurState, Player.CurrentWeapon.ResolveState("Fire") ) )
{
do some stuff
}

edit: it also seems that InStateSequence can't be used withing statusbar scripts because of the scope

Gutawer · Post by **Gutawer** » Wed May 10, 2017 12:41 pm

Something like this should do what you want:

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if (CPlayer.FindPSprite(PSprite.FLASH)) {
    // flash is active since the PSprite exists
}

Basically, weapon sprites aren't actually tied to the weapon that uses the sprites, but instead the PSprite layer on the player. In this case, we look for PSprite.FLASH which only exists as a layer if the gun is in any flash state. If you want to be very explicit and test only for the Flash state, you could do:

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let flashPSprite = CPlayer.FindPSprite(PSprite.FLASH);
if (CPlayer.ReadyWeapon && flashPSprite &&
    CPlayer.ReadyWeapon.InStateSequence(flashPSprite.CurState, CPlayer.ReadyWeapon.ResolveState("Flash"))) {
	
    // do whatever
}

Testing firing on the actual gun layer itself (which I'd recommend over testing the flash layer, as not all weapons actually use flashes) would go like this:

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let weapPSprite = CPlayer.FindPSprite(PSprite.WEAPON);
if (CPlayer.ReadyWeapon && weapPSprite &&
    CPlayer.ReadyWeapon.InStateSequence(weapPSprite.CurState, CPlayer.ReadyWeapon.ResolveState("Fire"))) {
	
    // do whatever
}

vidumec · Post by **vidumec** » Wed May 10, 2017 2:29 pm

thanks a lot, looks like truly everything is possible with zscript! That seems to be it, but now i have another problem, which is

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Can't call play function InStateSequence from ui context

so how would i go about using InStateSequence or "play" functions in general inside statusbar scripts, which use, as i understand, "ui" scope? Using "clearscope" or "play" before function breaks "CPlayer" and makes that function unaccessable by the main statusbar script.

Gutawer · Post by **Gutawer** » Wed May 10, 2017 2:55 pm

Oops, looks like I didn't do nearly enough testing there, sorry. I kinda just wrote the code in a play scope and then changed everything over to CPlayer once I noticed you were doing this in a statusbar, and I guess that that doesn't actually work X_X
Unfortunately though, I don't know how to get around that, sorry

Post by **ZZYZX** » Wed May 10, 2017 2:56 pm

That's probably an oversight in GZDoom since informational functions aren't supposed to be play... (idk)

vidumec · Post by **vidumec** » Wed May 10, 2017 3:12 pm

bah, i also tried to have a separate play class do "InStateSequence" checking and then returning the result to some global variable, but then i got the similar error with "Get" when trying to retrieve that variable inside statusbar class...

Post by **Xaser** » Wed May 10, 2017 9:07 pm

Random question: in ACS, it's possible to print a keybinding to the screen by Print/StrParam-ing a string with a "k:" prefix, e.g. Print(k:"+use") will print "E" if I have Use bound to the 'E' key.

Is there a ZScript equivalent for this? Trying to show something like this on the HUD, but I can't find anything relevant in wiki-or-forum-land.

[EDIT] Figured it out. Here, have a handy function:

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/*
 * Quick function to get a key name from a command.
 */
string GetKeyName(string command) {
	int k1, k2;
	[k1, k2] = Bindings.GetKeysForCommand(command);
	return KeyBindings.NameKeys(k1, k2);
}

Plunk this in a class or make a static version somewhere, and there you go.

vidumec · Post by **vidumec** » Thu May 11, 2017 2:38 am

megaedit No29:

So, by the end of the day i figured out how to spawn actors using event handlers, and how to circumwent the unability to read an ever changing variable from statusbar script, but now i have a following problem, this script ( or rather actor )

Spoiler:

crashes the game with "Access Violation" after it prints out the message. Supposedly, doing "player.***" is wrong, but whats the correct way then?
when i throw in a

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			if (player == null)
			{
				Console.Printf("Player doesn't exist.");			
				return;
			}

then it just keeps spamming that message, meaning the "player" is always null, but how is this even possible

edit: comeon guys, i have everything else implemented and just need a bit of help with this last thing
edit2: i think i found out, the correct way is "players[0]"

ZDoom

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