[DECORATE] How to check drowned corpses?

[Void Weaver]

Since looks that I has manage to make what I want with help of A_CheckLOF, I get stuck with two another problems:
a) in my case CheckLOF don't see drowned corpses, those whose laid on the flooded floor (waterlevel>0);
б) I can't manage to correctly adjust second CheckLOF, which checks blocking of corpsechasing path, actors are always get stuck everywhere.
Here all of them get stucked and don't want "eat" drowned corpses:

Main check for looking corpses:

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A_CheckLOF ("CorpseCheck", CLOFF_FROMBASE|CLOFF_JUMPENEMY|CLOFF_JUMPFRIEND|CLOFF_JUMPNONHOSTILE|CLOFF_SKIPTARGET|CLOFF_BEYONDTARGET|CLOFF_ALLOWNULL|CLOFF_CHECKPARTIAL|CLOFF_SETTRACER, 2048, 0, user_CLOFangle, -180, 0, 0, AAPTR_NULL, 0)

Check for blocking corpsechasing path:

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RGWL A 0 A_FaceTracer
RGWL A 0 A_JumpIfTracerCloser (30, "CorpseRemove")
RGWL A 1 A_Recoil (-1)
RGWL A 0 A_CheckLOF ("CorpseChaseW", CLOFF_FROMBASE|/* CLOFF_JUMPENEMY|CLOFF_JUMPFRIEND|CLOFF_JUMPNONHOSTILE|*/CLOFF_JUMPOBJECT|CLOFF_MUSTBESOLID|CLOFF_JUMP_ON_MISS|CLOFF_SKIPTARGET/*|CLOFF_ALLOWNULL|CLOFF_NOAIM*/, 80, 0, 0, 0, 0, 0, AAPTR_TRACER, 0)
RGWL B 0 A_FaceTracer
RGWL B 0 A_JumpIfTracerCloser (30, "CorpseRemove")
RGWL B 1 A_Recoil (-1)
RGWL B 0 A_CheckLOF ("CorpseChaseW", CLOFF_FROMBASE|/* CLOFF_JUMPENEMY|CLOFF_JUMPFRIEND|CLOFF_JUMPNONHOSTILE|*/CLOFF_JUMPOBJECT|CLOFF_MUSTBESOLID|CLOFF_JUMP_ON_MISS|CLOFF_SKIPTARGET/*|CLOFF_ALLOWNULL|CLOFF_NOAIM*/, 80, 0, 0, 0, 0, 0, AAPTR_TRACER, 0)
... and so on...

"CorpseChaseW" - jumps to A_Wander sequence with returning to the path-blocking check sequence.

An actor itself have a next flags and properties:

---

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Actor R
{
Monster
+FLOORCLIP
+JUMPDOWN
+DROPOFF
+BLOODSPLATTER
+DONTMORPH
+CAUSEPAIN
+LOOKALLAROUND
+DONTHARMCLASS
+MISSILEMORE
+MISSILEEVENMORE
Species "CorpseEater"
Health 1200
Radius 30
Height 60
Mass 1000
Speed 5
Scale 1
PainChance 64
MaxDropOffHeight 500
DamageFactor Poison, 0.1
DamageFactor Ice, 2.0
PainSound "Regurgitator/GetHit"
DeathSound "Regurgitator/Die"
Meleerange 80

[Apeirogon]

You must use acs script which check monster health, and if its <= zero spawn on monster positions dummy actor, which must be checked in A_CheckLOF.
How make this script I dont remeber, since I used acs last time long long ago. Try to look into legendoom acs.

[Void Weaver]

Thank you for try to help, but:
a) ONLY decorate solutions is acceptable for me, because scripting is too hard for me, even ACS;
b) I know that my english is terrible, but I didn't wrote that my seek-and-eat-corpse code have any problems in general except of waterlevel check and bad adjusted second CLOF sequence for obstacles.

[Apeirogon]

I suggest this because, I think, that monsters dont see drowned corpses because deep water in most old maps created by clipping actors through floor or other hacks to create illusion of depth.
And using new dummy actor could probably solve this problem.

[Void Weaver]

I fixed it already, and yes, your assumption seems to be right - CLOFF_FROMBASE flag doesn't allow check from actor's "feet" (as I thought before), instead of that its check from "basic" unflooded "floor". So I just did remove CLOFF_FROMBASE and set heightoffset to -25 value. Point a) was solved.

But I still can't manage to correct adjust CLOF for obstacles.

[Apeirogon]

If it still important
I see you managed to store corpse actor as tracer. You can use rearrange pointers function
https://zdoom.org/wiki/A_RearrangePointers
to make target pointer equal to tracer pointer and use default a_chase. But I think that target pointer clears if target health == 0.

So again, spawn dummy actor on position of corpse and chase it instead.

[Void Weaver]

Oh, yeah, it still important for me!
And yes, I already use a lot of A_RearrangePointers lines in my code, but seems that there is no need to use it in case of A_Chase for "dummy":
A_Chase=>
A_CheckLOF(_SETTRACER)=>
A_CheckFlag("CORPSE")=>
A_SpawnItemEx("dummy",ISTARGET)=> //Hmm, but how to place dummy-ISTARGET actor on CORPSE-_TRACER via decorate?!
A_Chase=>
A_JumpIfTargetCloser=>
{
A_Remove(_TRACER, _EVERYTHING);
A_Remove(_TARGET, _EVERYTHING, "dummy");
}

That seems very promising. But I dunno how to place dummy-ISTARGET actor on CORPSE-_TRACER via decorate. :-\

[Apeirogon]

Im not sure is it works, but you can try this

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set dead monster as target of you monster
a_givetotarget("spawn_dummy_actor")


actor spawn_dummy_actor : custominventory
{
inventory.maxamount 999999
states
{
     pickup:
     tnt1 a 0 a_spawnitemex("dummy_target")
     stop
}

} 

actor dummy_target
{
states
{
     spawn:
     tnt1 a 1
     loop
}

}

Or it must be use state insted of pickup....

[Void Weaver]

Oh, _givetotarget an custominventory, of course! Thank you! I'll try it and reply if I manage to do it.