src/UntilVictoryFight.cpp

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/*
This file is part of Teapot Colony Wars.

Teapot Colony Wars 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.

Teapot Colony Wars 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 Teapot Colony Wars.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "UntilVictoryFight.h"

#include <list>

#include "Cell.h"
#include "Worshiper.h"
#include "Random.h"

UntilVictoryFight::UntilVictoryFight() {

}

UntilVictoryFight::~UntilVictoryFight() {

}

unsigned int UntilVictoryFight::resolve(Cell *c) {
  std::list<Worshiper*>* worshipers = NULL;
  std::list<Worshiper*>::iterator it, end;
  Worshiper *bigger = NULL;
  unsigned int size_max = 0, food = 0;
  bool restart = false;

  // on récupère les worshipers présents sur la case
  worshipers = c->getPeople();
  if(worshipers != NULL) {
    end = worshipers->end();
    // on recherche le plus gros d'entre eux
    for(it = worshipers->begin(); it != end; ++it) {
      if((*it)->getSize() > size_max) {
        bigger = *it;
        size_max = bigger->getSize();
      }
    }
    // et maintenant il élimine tous les worshipers des autres colonies
    if(bigger != NULL) {
      end = worshipers->end();
      for(it = worshipers->begin(); it != end;) {
        // s'agit-il d'un ennemis ?
        if(*it != bigger && (*it)->getColony() != bigger->getColony()) {
          // Armes égales ? Que Dieu décide de l'issu de ce combat !...
          if(((*it)->getSize() == size_max) && (Random::value() % 2)) {
            // oups, on vient de se faire déssouder,
            food += bigger->getFood();
            c->removeWorshiper(bigger);
            delete(bigger);
            // un nouveau champion vient de naître
            bigger = *it;
            // et on n'a plus qu'a tout recommencer dans
            // la joie et la bonne humeur
            restart = true;
          } else {
            // ...ou pas (désolé mon petit, mais je crois que tu va souffrir)
            food += (*it)->getFood();
            c->removeWorshiper(*it);
            delete (*it);
            --it;
          }
        }
        // si on recommence, il ne faut pas incrémenter l'itérateur,
        // on se replace plutôt en début de liste.
        if(! restart) {
          ++it;
        } else {
          restart = false;
          it = worshipers->begin();
        }
      }
    }
  }

  return food;
}

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