blockLongEffect.h

説明を見る。

/* blockLongEffect.h
 */
#ifndef _MOVE_CLASSIFIER_BLOCK_LONG_EFFECT_H
#define _MOVE_CLASSIFIER_BLOCK_LONG_EFFECT_H

#include "osl/state/numEffectState.h"

namespace osl
{
  namespace move_classifier
  {
    template<Player P,Ptype T>
    struct BlockLongEffect
    {
      static bool isMember(NumEffectState const& state,
                           Ptype /*ptype*/,Position /*from*/,Position to){
        BOOST_STATIC_ASSERT((PtypeFuns<T>::hasLongMove));
        if(!state.getPieceAt(to).isEmpty())return false;
        mask_t e1=state.getOnBoardMask(PlayerTraits<P>::opponent).getMask(PtypeFuns<T>::indexNum);
        mask_t e2=state.getEffect(to).getMask(PtypeFuns<T>::indexNum)>>8;
        mask_t e3=e1 & e2 & mask_t::makeDirect(PtypeFuns<T>::indexMask);
        while(!e3.none()){
          int num=e3.takeOneBit()+((PtypeFuns<T>::indexNum)<<5);
          Piece p=state.getPieceOf(num);
          assert(p.isPiece());
          assert(p.owner()==PlayerTraits<P>::opponent);
          assert(unpromote(p.ptype())==T);
          Offset o=Board_Table.getShortOffset(Offset32(to,p.position()));
          // EMPTY or P��piece or alt(P)��piece
          Piece p1=state.getPieceAt(to+o);
          if(! p1.isEdge())
            return true;
        }
        return false;
      }
    };

    template<Player P>
    struct BlockLongAny
    {
      static bool isMember(const NumEffectState& state,
                           Ptype ptype,Position from,Position to) {
        return BlockLongEffect<P,ROOK>::isMember(state, ptype, from, to)
          || BlockLongEffect<P,BISHOP>::isMember(state, ptype, from, to)
          || BlockLongEffect<P,LANCE>::isMember(state, ptype, from, to);
      }
    };
  }
}
#endif /* _MOVE_CLASSIFIER_BLOCK_LONG_EFFECT_H */
// ;;; Local Variables:
// ;;; mode:c++
// ;;; c-basic-offset:2
// ;;; End:

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