Variable hidden elevated to abschar.

src/engine/objects/Mob.java

@@ -1679,8 +1679,8 @@ public class Mob extends AbstractIntelligenceAgent {
         return new ConcurrentHashMap<>(MBServerStatics.CHM_INIT_CAP, MBServerStatics.CHM_LOAD, MBServerStatics.CHM_THREAD_LOW);
     }
 
-    public boolean canSee(PlayerCharacter target) {
-        return this.mobBase.getSeeInvis() >= target.getHidden();
+    public boolean canSee(AbstractCharacter target) {
+        return this.mobBase.getSeeInvis() >= target.hidden;
     }
 
     public int getBuildingID() {