- Backported 2 fixes from Skulltag:

* A_SentinelAttack must check for a NULL target
  * Monsters with CANTLEAVEFLOORPIC could not move because their floor
    texture was not initialized.


SVN r1715 (trunk)

docs/rh-log.txt

@@ -1,4 +1,8 @@
 July 12, 2009  (Changes by Graf Zahl)
+- Backported 2 fixes from Skulltag:
+  * A_SentinelAttack must check for a NULL target
+  * Monsters with CANTLEAVEFLOORPIC could not move because their floor
+    texture was not initialized.
 - Fixed: The 'idclev' cheat set the player's health to 0 which caused the
   level to end when in a sector of type 'end level when health below 10'.
 

src/g_strife/a_sentinel.cpp

@@ -42,6 +42,12 @@ DEFINE_ACTION_FUNCTION(AActor, A_SentinelAttack)
 {
 	AActor *missile, *trail;
 
+	// [BB] Without a target the P_SpawnMissileZAimed call will crash.
+	if (!self->target)
+	{
+		return;
+	}
+
 	missile = P_SpawnMissileZAimed (self, self->z + 32*FRACUNIT, self->target, PClass::FindClass("SentinelFX2"));
 
 	if (missile != NULL && (missile->velx | missile->vely) != 0)

src/p_map.cpp

@@ -269,6 +269,12 @@ void P_FindFloorCeiling (AActor *actor, bool onlyspawnpos)
 	else
 	{
 		actor->floorsector = actor->ceilingsector = actor->Sector;
+		// [BB] Don't forget to update floorpic and ceilingpic.
+		if (actor->Sector != NULL)
+		{
+			actor->floorpic = actor->Sector->GetTexture(sector_t::floor);
+			actor->ceilingpic = actor->Sector->GetTexture(sector_t::ceiling);
+		}
 	}
 }