- Miscellaneous fixes to commit to change sector checks over to validSectorIndex().

* Fix missed changeover in Blood's `actSpawnSprite()`.
* Fix non-negated check on a `validSectorIndex()` call in Blood's `debrisMove()`.
* Removed a superfluous terminator in Duke's `actor.cpp`.
* Fixed bad call to `validSectorIndex()` in Exhumed's `AIAnim::Tick()`.

source/games/blood/src/actor.cpp

@@ -6402,7 +6402,7 @@ DBloodActor* actSpawnSprite(DBloodActor* source, int nStat)
 		BloodStatIterator it(kStatPurge);
 		actor = it.Next();
 		assert(actor);
-		assert(pSource->sectnum >= 0 && pSource->sectnum < kMaxSectors);
+		assert(validSectorIndex(pSource->sectnum));
 		ChangeActorSect(actor, pSource->sectnum);
 		actPostSprite(actor, nStat);
 	}

source/games/blood/src/nnexts.cpp

@@ -1692,17 +1692,11 @@ void debrisMove(int listIndex)
     spritetype* pSprite = &actor->s();   
     int nSector = pSprite->sectnum;
 
-    if (!actor->hasX())
+    if (!actor->hasX() || !validSectorIndex(pSprite->sectnum))
     {
         gPhysSpritesList[listIndex] = nullptr;
         return;
     }
-    else if (validSectorIndex(pSprite->sectnum))
-    {
-        gPhysSpritesList[listIndex] = nullptr;
-        return;
-    }
-
 
     int top, bottom, i;
     GetActorExtents(actor, &top, &bottom);

source/games/duke/src/actors.cpp

@@ -2255,7 +2255,7 @@ bool jibs(DDukeActor *actor, int JIBS6, bool timeout, bool callsetsprite, bool f
 	if (callsetsprite) setsprite(actor, s->pos);
 
 	// this was after the slope calls, but we should avoid calling that for invalid sectors.
-	if (!validSectorIndex(s->sectnum));
+	if (!validSectorIndex(s->sectnum))
 	{
 		deletesprite(actor);
 		return false;

source/games/exhumed/src/anims.cpp

@@ -149,7 +149,7 @@ void AIAnim::Tick(RunListEvent* ev)
 
             if (pSpriteB->sectnum != pSprite->sectnum)
             {
-                if (!validSectorIndex(pSpriteB))
+                if (!validSectorIndex(pSpriteB->sectnum))
                 {
                     DestroyAnim(pActor);
                     return;