EdgeBuilder.h

#pragma once

#include <unordered_set>

namespace ParaEngine
{
class EdgeHash
{
public:
    EdgeHash();
    EdgeHash(int v0, int v1);

    unsigned int hashCode() const;
    bool operator==(const EdgeHash& rhs) const;

    DWORD m_v0; // indices
    DWORD m_v1; // indices
};

class hash_compare_edge
{
public:
    enum{   
    bucket_size = 4,    // 0 < bucket_size
    min_buckets = 128}; // min_buckets = 2 ^^ N, 0 < N
    
    size_t operator( )( const EdgeHash&  Key ) const
    {
        return Key.hashCode();
    }
    bool operator( )( const EdgeHash&  _Key1,const EdgeHash&  _Key2) const
    {
        return !(_Key1== _Key2);
    }
};

class CEdgeBuilder
{
public:
    CEdgeBuilder(void);
    ~CEdgeBuilder(void);
public:
    static void AddEdge( std::unordered_set <EdgeHash, hash_compare_edge> & edgeTable, DWORD& dwNumEdges, WORD v0, WORD v1 );
};
}