class CellsCalculator
{
public:
    CellsCalculator(float screenWidth, float screenHeight,
                    unsigned xCellsCount, unsigned yCellsCount) :
        cellWidth{screenWidth / xCellsCount},
        cellHeight{screenHeight / yCellsCount}
    {
    }

    cocos2d::Vec2 getCellPosition(unsigned x, unsigned y)
    {
        return {cellWidth * x + cellWidth / 2.0,
                cellHeight * y + cellHeight / 2.0};
    }

private:
    float cellWidth;
    float cellHeight;
}