GetLevelByPosition

// A creature can have up to three classes. This function determines the // creature's class level based on nClass Position. // - nClassPosition: 1, 2 or 3 // - oCreature // * Returns 0 if oCreature does not have a class in nClassPosition //  (i.e. a single-class creature will only have a value in nClassLocation=1) //  or if oCreature is not a valid creature. int GetLevelByPosition(int nClassPosition, object oCreature=OBJECT_SELF);