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src/biu/LatticeNeighborhood.hh

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#ifndef LATTICE_NEIGHBORHOOD_HH_
#define LATTICE_NEIGHBORHOOD_HH_


#include "NeighborVector.hh"

#include "biu/HashMap.hh"

namespace biu
{
    class LatticeNeighborhood
    {
    protected:
        
#ifdef HAVE_GNU_HASH_MAP

        struct hash_IntPoint {
            size_t operator()(const IntPoint& p) const
            {
                size_t hash = 5381;
                
                hash = ((hash << 5) + hash) + (size_t)p.getX(); // hash * 33 + coordinate X
                hash = ((hash << 5) + hash) + (size_t)p.getY(); // hash * 33 + coordinate Y
                hash = ((hash << 5) + hash) + (size_t)p.getZ(); // hash * 33 + coordinate Z
    
                return hash;
            }
                 
        };
    
        typedef __gnu_cxx::hash_map< IntPoint, const NeighborVector*, hash_IntPoint > P2N_MAP;
#else
        typedef std::map< IntPoint, const NeighborVector* > P2N_MAP;
#endif
        
    protected:

        const MoveAlphabet* moveAlph;   
        NeighSet            neighSet;   
        
        std::vector<const NeighborVector*>  neighVec;   

        P2N_MAP vec2neigh;
        
    public:
        LatticeNeighborhood(    const MoveAlphabet* moveAlph_, 
                                const NeighSet& neighbors);
                                
        LatticeNeighborhood(    const LatticeNeighborhood& nh );
                                
        virtual ~LatticeNeighborhood();
        
        virtual 
        unsigned int size() const;
        
        virtual 
        bool isElement( const IntPoint& vector) const;
        
        virtual 
        const NeighborVector& getElementByIndex(unsigned int index) const;

        virtual 
        const NeighborVector& getElement(const IntPoint& vector) const;
        
        virtual 
        const NeighborVector& getElement(const Move& move) const;
        
        typedef NeighSet::const_iterator const_iterator;
        
        virtual 
        const_iterator begin() const;
        
        virtual 
        const_iterator end() const;
    };

} // namespace biu

#include "LatticeNeighborhood.icc"

#endif /*LATTICE_NEIGHBORHOOD_HH_*/