examples/Graphics/WS/Direct/CLifeEngine.h

/*
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  may be used to endorse or promote products derived from this software
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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Description:  
*/


#if !defined(__CLIFEENGINE_H__)
#define __CLIFEENGINE_H__

#include <e32base.h>

// Cell array dimensions
const TInt DIM_X_ARRAY = 16;
const TInt DIM_Y_ARRAY = 8;

// Cell array type
typedef TBool TCellArray[DIM_X_ARRAY][DIM_Y_ARRAY];

// A "Game of Life" engine
// After John Conway, Scientific American 223 (October 1970): 120-123
class CLifeEngine: public CBase
        {
public:
        // Initalise engine with random seed
        CLifeEngine(const TInt64& aSeed);
        // Moves forward one generation
        void AddGeneration();
        // Gets cell array
        const TCellArray& GetCellArray() const
                {return iCellArray;}
        // Resets all cells to random state
        void Reset();

private:
        // Gets number of neighbors for cell x,y
        TInt NumNeighbors(TInt x, TInt y);

private:
        // Random num generator seed
        TInt64 iSeed;
        // Cell array
        TCellArray iCellArray;
        // Temporary working cell array
        TCellArray iTempCellArray;
        };


#endif

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