Petrification Effect, Is it possible?

[Ashat Maself]

I'm currently working on an item that would turn enemies to stone, similar to the freeze effect, but not destroyable and can be pushed around, Is this possible and if so, how (zscript, acs and decorate accepted)

[Enjay]

There may be neater ways but you could set your petrification weapon to do a custom damage type and create new items that look like the relevant enemies (but petrified) and spawn them in a special "pertrification" death sequence to replace the actual actor which would be set to vanish at the same time. So you wouldn't be pushing around the actual corpse, but no one would know.

[Cherno]

I would write an inventory class that the monsters get, which in DoEffect() makes the monster be pushable, set tics to -1, and possibly also set it's translation to greyscale. Make sure to store the relevant flags and variables before the petrification occurs, so you can reset it afterwards should the monster turn to flesh again.

[Ashat Maself]

I would write an inventory class that the monsters get, which in DoEffect() makes the monster be pushable, set tics to -1, and possibly also set it's translation to greyscale. Make sure to store the relevant flags and variables before the petrification occurs, so you can reset it afterwards should the monster turn to flesh again.

Thanks for the help, I'll try this tomorrow, and the effect is designed to be permanent so turning back to flesh shouldn't be an issue

[Ashat Maself]

Update, I am currently using a Morphprojectile, can a morphclass inherit the last used frames of the class that morphed into it?

[Cherno]

You can set the sprite and frame manually via the sprite and frame variables.

[Ashat Maself]

Could you elaborate further?

[Jarewill]

You can find information about that on this wiki page.
You can copy the current sprite and frame of another actor doing

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self.sprite = pointer.sprite;
self.frame = pointer.frame;

[Ashat Maself]

You can find information about that on this wiki page.
You can copy the current sprite and frame of another actor doing

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self.sprite = pointer.sprite;
self.frame = pointer.frame; 

Using this with GetSpriteIndex gives me multiple errors

[Jarewill]

Using this with GetSpriteIndex gives me multiple errors

My fault for not being clearer.
The reason I linked that wiki page is because it shows how you can change the sprite and frame variables if you don't have a direct pointer.
If you do have a pointer however, you can use that, like in the code I provided. (self.sprite = pointer.sprite)

I have never used MorphProjectiles, so I don't know if they return a pointer to the actor pre-morph, so you can get it's variables before morphing though.

[Ashat Maself]

I'm still confused on where self.sprite = pointer.sprite even goes? Every logical place to use it just causes errors

[Jarewill]

Like I said, I never used MorphProjectile, so I don't know how it works.
You might need to check inside the gzdoom.pk3's ZScript files to see how MorphProjectile morphs the actor and override it with your own code.

However, the first method Cherno posted would work well here:

---

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version "4.0"

Class PetrificationHandler : EventHandler
{
    Override void WorldThingDied(WorldEvent e)
    {
        If(e.Inflictor&&e.Inflictor.damagetype=="Stone")
        { //If the damage type of the projectile that hit the monster is "Stone"
            e.Thing.GiveInventory("PetrifiedEffect",1); //Give the monster the item
        }
    }
}
Class PetrifiedEffect : Inventory
{ //This item deals with the petrification
    Override void AttachToOwner(Actor other)
    {
        self.height=other.height; //Store the monster's height
        Super.AttachToOwner(other);
    }
    Override void DoEffect()
    {
        Super.DoEffect();
        If(owner)
        {
            owner.bPUSHABLE=1; owner.bNODAMAGE=1;
            owner.bFLY=0; owner.bNOGRAVITY=0; owner.bNOBLOOD=1; //Set relevant flags so the monster is pushable, cannot be damaged, can't fly and doesn't spawn blood
            owner.height = self.height; //Reset the height
            owner.Revive(); level.total_monsters--; //Revive it so it can be interacted with, but don't increase the monster count
            owner.tics=-1; //Set it's tics to -1
            owner.A_SetTranslation("Petrified"); //Set a color translation
        }
    }
}
Class StoneBall : PlasmaBall replaces PlasmaBall
{ //Example projectile dealing Stone damage
    Default{DamageType "Stone"; Damage 9999;}
}

And here's the petrification translation I used:

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Petrified = "16:46=80:111", "48:79=80:111", "112:127=80:111", "128:159=80:111", "168:191=80:111", "160:167=96:111", "192:207=80:99", "240:247=101:111", "208:223=80:111", "224:231=80:95", "232:239=96:111", "248:255=96:111", "9:15=5:8"

Put it in a TRSNLATE file.

[Ashat Maself]

Thank You for this, I'll credit you for the code

[Ashat Maself]

One last thing, Upon startup I get these errors

MedusaHead.pk3:zscript, line 1: Parent class EventHandler of PetrificationHandler not accessible to ZScript version 2.3.0
MedusaHead.pk3:zscript, line 3: Type WorldEvent not accessible to ZScript version 2.3.0
MedusaHead.pk3:zscript, line 3: Invalid type Type for function parameter
MedusaHead.pk3:zscript, line 3: Attempt to override non-existent virtual function WorldThingDied

[Jarewill]

That means you haven't specified the ZScript version.
Look at the first line of the code I provided.