sapphire/src/servers/sapphire_zone/Zone/CellHandler.h

#ifndef _CELLHANDLER_H
#define _CELLHANDLER_H

#define TilesCount 32
#define TileSize 250.0f
#define _minY (-TilesCount*TileSize/2)
#define _minX (-TilesCount*TileSize/2)

#define _maxY (TilesCount*TileSize/2)
#define _maxX (TilesCount*TileSize/2)

#define CellsPerTile 4
#define _cellSize (TileSize/CellsPerTile)
#define _sizeX (TilesCount*CellsPerTile)
#define _sizeY (TilesCount*CellsPerTile)

#define GetRelatCoord(Coord,CellCoord) ((_maxX-Coord)-CellCoord*_cellSize)
namespace Core {

class Zone;

template<class T>
class CellHandler
{
public:
   CellHandler();
   ~CellHandler();

   T* getCellPtr( uint32_t x, uint32_t y );
   T* getCellByCoords( float x, float y );
   T* create( uint32_t x, uint32_t y );
   T* createByCoords( float x, float y );
   void remove( uint32_t x, uint32_t y );

   bool allocated( uint32_t x, uint32_t y )
   {
      return m_pCells[x][y] != nullptr;
   }

   static uint32_t getPosX( float x );
   static uint32_t getPosY( float y );

protected:
   void _init();


   T *** m_pCells;

};

template <class T>
CellHandler<T>::CellHandler()
{

   _init();
}


template <class T>
void CellHandler<T>::_init()
{
   m_pCells = new T**[_sizeX];

   assert( m_pCells );
   for( uint32_t i = 0; i < _sizeX; i++ )
   {
      m_pCells[i] = nullptr;
   }

}

template <class T>
CellHandler<T>::~CellHandler()
{
   if( m_pCells )
   {
      for( uint32_t i = 0; i < _sizeX; i++ )
      {
         if( !m_pCells[i] )
         {
            continue;
         }

         for( uint32_t j = 0; j < _sizeY; j++ )
         {
            if( m_pCells[i][j] )
            {
               delete m_pCells[i][j];
            }
         }
         delete[] m_pCells[i];
      }
      delete[] m_pCells;
   }
}

template <class T>
T* CellHandler<T>::create( uint32_t x, uint32_t y )
{
   if( x >= _sizeX || y >= _sizeY )
   {
      return nullptr;
   }

   if( !m_pCells[x] )
   {
      m_pCells[x] = new T*[_sizeY];
      memset( m_pCells[x], 0, sizeof( T* )*_sizeY );
   }

   assert( m_pCells[x][y] == nullptr );

   T *cls = new T;
   m_pCells[x][y] = cls;

   return cls;
}

template <class T>
T* CellHandler<T>::createByCoords( float x, float y )
{
   return create( getPosX( x ), getPosY( y ) );
}

template <class T>
void CellHandler<T>::remove( uint32_t x, uint32_t y )
{
   if( x >= _sizeX || y >= _sizeY )
   {
      return;
   }

   if( !m_pCells[x] )
   {
      return;
   }

   assert( m_pCells[x][y] != nullptr );

   T *cls = m_pCells[x][y];
   m_pCells[x][y] = nullptr;

   delete cls;
}

template <class T>
T* CellHandler<T>::getCellPtr( uint32_t x, uint32_t y )
{
   if( !m_pCells[x] )
   {
      return nullptr;
   }

   return m_pCells[x][y];
}

template <class T>
T* CellHandler<T>::getCellByCoords( float x, float y )
{
   return getCellPtr(getPosX(x), getPosY(y));
}

template <class T>
uint32_t CellHandler<T>::getPosX( float x )
{
   assert( ( x >= _minX ) && ( x <= _maxX ) );
   return ( uint32_t ) ( ( _maxX - x ) / _cellSize );
}

template <class T>
uint32_t CellHandler<T>::getPosY( float y )
{
   assert( ( y >= _minY ) && ( y <= _maxY ) );
   return ( uint32_t ) ( ( _maxY - y ) / _cellSize );
}

}
#endif