Fully revert ZDoom#2479

src/playsim/actor.h

@@ -442,7 +442,7 @@ enum ActorFlag9
 	MF9_DOSHADOWBLOCK			= 0x00000002,	// [inkoalawetrust] Should the monster look for SHADOWBLOCK actors ?
 	MF9_SHADOWBLOCK				= 0x00000004,	// [inkoalawetrust] Actors in the line of fire with this flag trigger the MF_SHADOW aiming penalty.
 	MF9_SHADOWAIMVERT			= 0x00000008,	// [inkoalawetrust] Monster aim is also offset vertically when aiming at shadow actors.
-	MF9_DECOUPLEDANIMATIONS	= 0x00000010,	// [RL0] Decouple model animations from states
+	MF9_DECOUPLEDANIMATIONS		= 0x00000010,	// [RL0] Decouple model animations from states
 	MF9_ISPUFF					= 0x00000040,	// [AA] Set on actors by P_SpawnPuff
 };
 

src/playsim/p_enemy.cpp

@@ -464,12 +464,6 @@ static int P_IsUnderDamage(AActor* actor)
 				dir |= cl->getDirection();
 		}
 		// Q: consider crushing 3D floors too?
-		// [inkoalawetrust] Check for sectors that can harm the actor.
-		if (!(actor->flags9 & MF9_NOSECTORDAMAGE) && seclist->m_sector->damageamount > 0)
-		{
-			if (seclist->m_sector->MoreFlags & SECMF_HARMINAIR || actor->isAtZ(seclist->m_sector->LowestFloorAt(actor)) || actor->waterlevel)
-				return (actor->player || (actor->player == nullptr && seclist->m_sector->MoreFlags & SECMF_HURTMONSTERS))  ? -1 : 0;
-		}
 	}
 	return dir;
 }

src/playsim/p_spec.cpp

@@ -434,6 +434,7 @@ void P_PlayerInSpecialSector (player_t *player, sector_t * sector)
 		{
 			return;
 		}
+	}
 
 	// Has hit ground.