private static void GenerateNewRocks(Random randomGenerator, int playfieldWidth, int playfieldHight)
        {
            rock = new FoodAndRocks(randomGenerator.Next(2, playfieldWidth - 2),
                                    randomGenerator.Next(2, playfieldHight - 2), "A", ConsoleColor.Gray);

            if (Rocks.Count < 6)
            {
                Rocks.Add(rock);
            }
        }
        private static void GenerateNewFood(Random randomGenerator, int playfieldHight, string foodType)
        {
            newFood = new FoodAndRocks(0, randomGenerator.Next(2, playfieldHight - 2), foodType, ConsoleColor.Red);

            if (Food.Count < 6)
            {
                Food.Add(newFood);
            }

            Score++;
        }
        private static void GenerateNewFoodList(int playfieldWidth)
        {
            List <FoodAndRocks> newList = new List <FoodAndRocks>();

            for (int i = 0; i < Food.Count; i++)
            {
                FoodAndRocks oldFood = Food[i];
                FoodAndRocks newFood = new FoodAndRocks(oldFood.X, oldFood.Y, oldFood.S, oldFood.Color);
                if (oldFood.X + 1 <= playfieldWidth)
                {
                    newFood.X = oldFood.X + 1;
                }

                if (newFood.X < playfieldWidth && newList.Count < 20)
                {
                    newList.Add(newFood);
                }
            }
            Food = newList;
        }
        private static void GenerateNewRocks(Random randomGenerator, int playfieldWidth, int playfieldHight)
        {
            rock = new FoodAndRocks(randomGenerator.Next(2, playfieldWidth-2),
                randomGenerator.Next(2, playfieldHight-2), "A", ConsoleColor.Gray);

            if (Rocks.Count < 6)
            {
                Rocks.Add(rock);
            }
        }
        private static void GenerateNewFoodList(int playfieldWidth)
        {
            List<FoodAndRocks> newList = new List<FoodAndRocks>();
            for (int i = 0; i < Food.Count; i++)
            {
                FoodAndRocks oldFood = Food[i];
                FoodAndRocks newFood = new FoodAndRocks(oldFood.X, oldFood.Y, oldFood.S, oldFood.Color);
                if (oldFood.X + 1 <= playfieldWidth)
                {
                    newFood.X = oldFood.X + 1;
                }

                if (newFood.X < playfieldWidth && newList.Count < 20)
                {
                    newList.Add(newFood);
                }
            }
            Food = newList;
        }
        private static void GenerateNewFood(Random randomGenerator, int playfieldHight, string foodType)
        {
            newFood = new FoodAndRocks(0, randomGenerator.Next(2, playfieldHight-2), foodType, ConsoleColor.Red);

            if (Food.Count < 6)
            {
                Food.Add(newFood);
            }

            Score++;
        }