- fixed: With the recent changes to the damage code, the check for MF5_NODAMAGE was too early. Putting it into AActor::TakeSpecialDamage is also not the best idea because that limits that function's potential.

src/p_interaction.cpp

@@ -1038,6 +1038,7 @@ int P_DamageMobj (AActor *target, AActor *inflictor, AActor *source, int damage,
 			// Invulnerable, and won't wake up
 			return -1;
 		}
+
 		if (damage < TELEFRAG_DAMAGE) // TELEFRAG_DAMAGE may not be reduced at all or it may not guarantee its effect.
 		{
 			player = target->player;
@@ -1116,6 +1117,10 @@ int P_DamageMobj (AActor *target, AActor *inflictor, AActor *source, int damage,
 					return -1;
 				}
 			}
+			if (target->flags5 & MF5_NODAMAGE)
+			{
+				damage = 0;
+			}
 		}
 	}
 	if (damage < 0)

src/p_mobj.cpp

@@ -6159,11 +6159,6 @@ int AActor::TakeSpecialDamage (AActor *inflictor, AActor *source, int damage, FN
 {
 	FState *death;
 
-	if (flags5 & MF5_NODAMAGE)
-	{
-		return 0;
-	}
-
 	// If the actor does not have a corresponding death state, then it does not take damage.
 	// Note that DeathState matches every kind of damagetype, so an actor has that, it can
 	// be hurt with any type of damage. Exception: Massacre damage always succeeds, because