cells.h

/***************************************************************************
 *   Copyright (C) 2003-2004 by David Saxton                               *
 *   david@bluehaze.org                                                    *
 *                                                                         *
 *   This program 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.                                   *
 ***************************************************************************/

#ifndef CELLS_H
#define CELLS_H

#include <map>

class Point
{
public:
        Point();
        
        short x;
        short y;
        short prevX;
        short prevY;
};

// Key = cell, data = previous cell, compare = score
typedef std::multimap< unsigned short, Point > TempLabelMap;

// Used for mapping out connections
const int cellSize = 8;
class Cell
{
public:
        Cell();
        void reset();
        
        unsigned short CIpenalty; // 'Penalty' of using the cell from CNItem
        unsigned short Cpenalty; // 'Penalty' of using the cell from Connector
        unsigned short bestScore; // Best (lowest) score so far, _the_ best if it is permanent
        short prevX, prevY; // Which cell this came from, (-1,-1) if originating cell
        bool permanent:1; // Whether the score can be improved on
        bool addedToLabels:1; // Whether the cell has already been added to the list of cells to check
        Point *point; // Pointer to the point in the TempLabelMap
        unsigned short numCon; // Number of connectors through that point
};


class Cells
{
public:
        Cells( const uint w, const uint h );
        ~Cells();
        void reset();

        inline Cell* operator[] ( const uint x ) const
        {
                if ( x<m_w ) return m_cells[x];
                return 0;
        }
        
        const uint width() const { return m_w; }
        const uint height() const { return m_h; }
        
        const Cell &cell( const uint x, const uint y ) const { return m_cells[x][y]; }
        
private:
        Cells( const Cells & );
        Cells & operator= ( const Cells & );
        void init( const uint w, const uint h );
        
        uint m_w;
        uint m_h;
        
        Cell **m_cells;
};

#endif

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