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Abilities.h

/*
 * Abilities.h -- class interfaces for sets of ability scores
 * Copyright (C) 2002  Eric Lemings <elemings@users.sourceforge.net>
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA
 *
 * RCS: $Id: Abilities.h,v 1.6 2003/04/15 16:58:33 elemings Exp $
 */

#ifdef __cplusplus

#  ifndef OGS_CORE_ABILITIES_H
#    define OGS_CORE_ABILITIES_H

#    include <map>

#    include <ogs/core/Ability.h>
#    include <ogs/core/Namespace.h>
#    include <ogs/core/Types.h>

OGS_BEGIN_CORE_NAMESPACE

class Abilities: private std::map<Ability::Type, AbilityPtr> {
  private:
    typedef std::map<Ability::Type, Ability::Score> ScoreMap;
    typedef std::map<Ability::Type, AbilityPtr> PtrMap;

  public:
    typedef PtrMap::iterator Iterator;

    typedef PtrMap::value_type Value;

    struct PartialMethod;

    Abilities ();
    Abilities (Ability::Method& method);
    Abilities (PartialMethod& partialMethod);

    Iterator getBegin ();
    Iterator getEnd ();
    AbilityPtr operator[] (Ability::Type abilityType);
    bool isComplete () const;

    bool canRerollStandard ();
    bool canRerollAverage ();
    bool canRerollHighPowered ();

  private:
    bool canReroll (Modifier::Value modifier, Ability::Score score);
};

struct Abilities::PartialMethod: public Ability::Method,
                                 private Abilities::ScoreMap {
  typedef Abilities::ScoreMap::value_type Value;

  template <class _InputIterator>
  PartialMethod (_InputIterator first, _InputIterator last):
    ScoreMap (first, last) {
    // empty constructor body
  }

  bool hasAbility (Ability::Type type);
  Ability::Score operator() (Ability::Type type);
};

inline bool
Abilities::PartialMethod::hasAbility (Ability::Type type) {
  return (this->find (type) != this->end ());
}

inline Ability::Score
Abilities::PartialMethod::operator() (Ability::Type type) {
  return ((*this) [type]);
}

inline Abilities::Iterator
Abilities::getBegin () {
  return (this->begin ());
}

inline Abilities::Iterator
Abilities::getEnd () {
  return (this->end ());
}

inline AbilityPtr
Abilities::operator[] (Ability::Type abilityType) {
  // The map::operator[] inserts the key if not found so this operator
  // cannot use it.  It has to check first and return NULL if not found.
  Iterator itor = find (abilityType);
  return (itor == end ()? AbilityPtr (): itor->second);
}

inline bool
Abilities::isComplete () const {
  return (this->size () == Ability::NUM);
}

inline bool
Abilities::canRerollStandard () {
  return (canReroll (0, 13));
}

inline bool
Abilities::canRerollAverage () {
  return (canReroll (-3, 11));
}

inline bool
Abilities::canRerollHighPowered () {
  return (canReroll (+1, 14));
}

OGS_END_CORE_NAMESPACE

#  endif /* !defined OGS_CORE_ABILITIES_H */

#endif /* defined __cplusplus */

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