v2.2.1: added some safety checks to crystal guardians and newborn fire

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/CrystalGuardian.java

@@ -201,7 +201,7 @@ public class CrystalGuardian extends Mob{
 	@Override
 	public boolean[] modifyPassable(boolean[] passable) {
 		//if we are hunting, we can stomp through crystals, but prefer not to
-		if (state == HUNTING){
+		if (state == HUNTING && target != -1){
 			PathFinder.buildDistanceMap(target, passable);
 
 			if (PathFinder.distance[pos] > 2*Dungeon.level.distance(pos, target)) {

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Elemental.java

@@ -327,6 +327,7 @@ public abstract class Elemental extends Mob {
 
 		@Override
 		protected void zap() {
+			if (targetingPos != -1) {
 				spend(1f);
 
 				Invisibility.dispel(this);
@@ -347,6 +348,7 @@ public abstract class Elemental extends Mob {
 					}
 				}
 				Sample.INSTANCE.play(Assets.Sounds.BURNING);
+			}
 
 			targetingPos = -1;
 			rangedCooldown = Random.NormalIntRange( 3, 5 );