class TargetSelector : public Persistent {
public:
  enum SelectorType {
    CLOSEST_MONSTER,
    SELECTED_MONSTER,
    WEARER_RANGE,
    SELECTED_RANGE
  };
  TargetSelector(SelectorType type, float range);
  void selectTargets(Actor *wearer, TCODList<Actor *>& list);
  void save(TCODZip &zip);
  void load(TCODZip &zip);

protected:
  SelectorType type;
  float range;
};

class Effect /*: public Persistent */{
public:
  virtual bool applyTo(Actor *actor) = 0;
//  void save(TCODZip &zip);
//  void load(TCODZip &zip);
};

class Pickable : public Persistent {
public:
  Pickable(TargetSelector *selector, Effect *effect);
  virtual ~Pickable();
  bool pick(Actor *owner, Actor *wearer);
  void drop(Actor *owner, Actor *wearer);
  bool use(Actor *owner, Actor *wearer);
  static Pickable *create(TCODZip &zip);
  void save(TCODZip &zip);
  void load(TCODZip &zip);

protected:
  TargetSelector *selector;
  Effect *effect;
};

/* Effects */
class HealthEffect : public Effect {
public:
  float amount;
  const char *message;
  HealthEffect(float amount, const char *message);
  bool applyTo(Actor *actor);
};

class AiChangeEffect : public Effect {
public:
  TemporaryAi *newAi;
  const char *message;

  AiChangeEffect(TemporaryAi *newAi, const char *message);
  bool applyTo(Actor *actor);
};