The "How do I..." Thread

[insightguy]

There are various ways that can happen. The most common of which is that the XF_HURTSOURCE flag in the A_Explode function (which is set by default) isn't cleared. To clear that, you'd put a 0 in the "flags" parameter.

But I don't know if that's the case. Could you post some code? That'd really help us diagnose the problem sooner...

This did it, thanks!

[Blue Shadow]

no matter if it's true or false, the code doesnt seem to work.

Be more specific - what happens when you spawn that actor?

And in your case, the CVAR needs to be server, since the caller isn't a player.

[Cherno]

The JumpIf part is completely ignored, it just plays the normal Spawn state.


Edit: Nevermind, it is working now. I'm not sure what went wrong but changing the CVAR to server again did the trick.

[Apeirogon]

I need thrust actor in one of the randomly taken direction, left-right-up, inside anonymous function.
How do i make so?

[DoomKrakken]

Do you have code for us to work with? It'll be hard coming up with code completely tailored to you if we don't see where you want to go with this...

[Apeirogon]

Its half done and in future may be rewrited/slightly changed when i start balancing monster.

---

Code: Select all

	
missile:
	SDDM E 3 A_FaceTarget(15)
	sddm fffff 1{
	if (countinv("demonic_vigor_in_clip") == 0) { return state("recuperation"); }
	else if (A_JumpIfCloser(456, "null") & A_JumpIfTargetInLOS("null", 60, JLOSF_DEADNOJUMP, 456, 0) & countinv("demonic_vigor_in_clip") >= 1)
	{a_settics(random(14,17)+ceil(1.3*CountProximity("imps", 300, CPXF_DEADONLY|CPXF_CHECKSIGHT)));
	A_FaceTarget(15);
	A_CustomMissile("netherworld_projectile", 42, 6, (randompick(-1,1)*(frandom(0, 1.38)+(3/health)), CMF_CHECKTARGETDEAD|CMF_OFFSETPITCH, (randompick(-1,1)*(frandom(0, 1.38)+(3/health)), AAPTR_TARGET);
	a_takeinventory("demonic_vigor_in_clip", 1); }
	else (A_JumpIfCloser(1177, "null") & A_JumpIfTargetInLOS("null", 30, JLOSF_DEADNOJUMP, 1177, 0) & countinv("demonic_vigor_in_clip") >= 10)
	{a_settics(random(76,104));
	A_FaceTarget(5);
	A_CustomMissile("limit_break_netherworld_projectile", 44, 8, frandom(-0.3, 0.3), CMF_CHECKTARGETDEAD|CMF_OFFSETPITCH, frandom(-0.3, 0.3), AAPTR_TARGET);
	a_recoil(5+(400/(mass+health));
	a_takeinventory("demonic_vigor_in_clip", 10); }
	}
goto see

I wish insert in second part of if/else block, where A_JumpIfCloser(456, "null"), previous version of attack

---

Code: Select all

missile:
tnt1 a 0 A_CheckRange(1963, "limit_break_shot", false) 
	tnt1 a 0 A_jump(17, "limit_break_shot")
    tnt1 a 0 a_jumpif(countinv("demonic_vigor_in_clip") == 0, "recuperation")
	SDDM E 5 A_FaceTarget
	tnt1 q 0 a_jumpif(countinv("demon_endurance") == 0, 10)
	tnt1 a 0 A_jump(256, 1, 3, 7)
	//jump
	SDDM a 12 ThrustThingz(0, 50, 0, 1)
	tnt1 a 0 A_jump(256, 5)
    //strafe
	SDDM a 12 ThrustThing(angle*256/360+randompick(64, 96, 160, 192), 12, 1, 0)
	tnt1 a 0 A_jump(256, 3)
	//jump+strafe
	SDDM a 12 ThrustThingz(0, 50, 0, 1)
	SDDM a 0 ThrustThing(angle*256/360+randompick(64, 96, 160, 192), 12, 1, 0)
    sddm e 15 ThrustThing(angle*256/360+random(0,256), 20, 0, 0)//; ThrustThingz(0, 20, randompick(0,0,0,1,1), 1)
	tnt1 a 0 a_takeinventory("demon_endurance", 1, AAPTR_DEFAULT)
	tnt1 a 0 a_facetarget
	SDDM F 4 Bright {A_CustomMissile("netherworld_projectile", 42, 6,(randompick(-1,1)*(frandom(0, 1.58)/* */), CMF_CHECKTARGETDEAD|CMF_OFFSETPITCH, frandom (-1.58, 1.58), AAPTR_TARGET);//replace to A_SpawnProjectile if "decapitate" a_missile
	a_takeinventory("demonic_vigor_in_clip", 1, AAPTR_DEFAULT);}
goto see

[Ryuhi]

Is there any way to apply thrust to a non-shootable actor (namely pickups?) Haven't had any luck finding anything, and that flag seems to be the key (aside from combos that contain it)

[Apeirogon]

Define mass of pickup?

[DoomKrakken]

Maybe give them a ThrustThing action, defined within the pickup's definition, under its Spawn state.

Ok, so I've heard of being able to define/use an array of pointers in ZScript. Does anyone know how I can do that?

[cambertian]

I'm making a mod that operates on health points instead of a health percent. I've already figured out most of the hard stuff - how to make it so damage is only dealt in multiples of 10, etc. - but I want armor to work in a specific way.
Instead of blocking a percent of damage and dissipating by a percent, I want it to block X points of damage before dissipating by 1 point. (So if the player takes, say, 3 points of damage, his armor goes down by a point.)

However, that's not my current trouble either - though I will get back to it! Instead, I'm having trouble with making a new Armor class to accommodate this behavior. I can't seem to access one of the item's custom properties:

Code: Select all

Script error, "health.pk3:zscript/hp/armor.zc" line 25:
Unknown identifier 'protectAmount'

I tried "invoker" as well, just in case, but it still errors out.

Also, if you can check some of my logic, that'd be great!

Code: Select all

class CustomBaseArmor : Inventory
{
	int protectAmount; // Amount of HP to protect before going down a point
	
	property ProtectionAmount: protectAmount;
	
	Default
	{
		-INVENTORY.INVBAR
		+INVENTORY.IGNORESKILL
		+INVENTORY.UNTOSSABLE
		+INVENTORY.PERSISTENTPOWER
		+INVENTORY.HUBPOWER
		+INVENTORY.ISARMOR
		Inventory.Amount 10;
		CustomBaseArmor.ProtectionAmount 2;
	}
	
	override bool ShouldStay() // To keep the player from picking up more than one shield
	{
		let lastShield = FindInventory("CustomBaseArmor", true);
		
		if (lastShield != NULL)
		{
			if ((protectAmount <= lastShield.protectAmount) && (Amount <= lastShield.Amount)) // Make sure the player doesn't get a bad shield either
			{
				return true;
			}
			
			RemoveInventory(lastShield);
		}
		
		return false;
	}
}

[UltimateSavage]

I have found resources from NAM and wanted to use them for the own project.
But I have faced a problem. All graphics are black-and-white.
I try to change a color palette, but i can't found NAM palette. I have chosen Duke Nukem palette, but nothing has occurred too, sprites are still black-and-white.

What needs to do, to make them color, like in original game?

[Gutawer]

However, that's not my current trouble either - though I will get back to it! Instead, I'm having trouble with making a new Armor class to accommodate this behavior. I can't seem to access one of the item's custom properties:

Code: Select all

Script error, "health.pk3:zscript/hp/armor.zc" line 25:
Unknown identifier 'protectAmount'

You need to cast lastShield to the CustomBaseArmor type by doing:

Code: Select all

let lastShield = CustomBaseArmor(FindInventory("CustomBaseArmor", true));

Otherwise FindInventory returns an Inventory type, which doesn't have a field called protectAmount, therefore the compiler errors out. By telling the compiler "Hey, this Inventory item is going to be a CustomBaseArmor", it knows that the protectAmount field exists on the item, and the code can successfully compile.

[Clay]

Is there a way to still have a sky while I am using a texture/flat with transparency on my ceiling? The transparent part only shows black.

[Nevander]

I have found resources from NAM and wanted to use them for the own project.
But I have faced a problem. All graphics are black-and-white.
I try to change a color palette, but i can't found NAM palette. I have chosen Duke Nukem palette, but nothing has occurred too, sprites are still black-and-white.

What needs to do, to make them color, like in original game?

Try changing the base resource to the NAM.GRP.

[Cherno]

Is there a way to still have a sky while I am using a texture/flat with transparency on my ceiling? The transparent part only shows black.

You can make the sky as usual and then place a 3D sector of the transparent texture as the ceiling underneath it.