//умные повороты
            public void TurnUp()
            {
                if (direction != 3 && !Check(HeadX(), (HeadY() - 1 + NY) % NY))
                    ChangeDirection(1);
                else if (direction != 2 && !Check((HeadX() - 1 + NX) % NX, HeadY()))
                    ChangeDirection(4);
                else if (direction != 4 && !Check((HeadX() + 1) % NX, HeadY()))
                    ChangeDirection(2);
                else
                    ChangeDirection(3);

            }
            public void TurnRight()
            {
                if (direction != 4 && !Check((HeadX() + 1) % NX, HeadY()))
                    ChangeDirection(2);
                else if (direction != 3 && !Check(HeadX(), (HeadY() - 1 + NY) % NY))
                    ChangeDirection(1);
                else if (direction != 1 && !Check(HeadX(), (HeadY() + 1) % NY))
                    ChangeDirection(3);
                else
                    ChangeDirection(4);
            }
            public void TurnDown()
            {
                if (direction != 1 && !Check(HeadX(), (HeadY() + 1) % NY))
                    ChangeDirection(3);
                else if (direction != 2 && !Check((HeadX() - 1 + NX) % NX, HeadY()))
                    ChangeDirection(4);
                else if (direction != 4 && !Check((HeadX() + 1) % NX, HeadY()))
                    ChangeDirection(2);
                else
                    ChangeDirection(1);
            }
            public void TurnLeft()
            {
                if (direction != 2 && !Check((HeadX() - 1 + NX) % NX, HeadY()))
                    ChangeDirection(4);
                else if (direction != 3 && !Check(HeadX(), (HeadY() - 1 + NY) % NY))
                    ChangeDirection(1);
                else if (direction != 1 && !Check(HeadX(), (HeadY() + 1) % NY))
                    ChangeDirection(3);
                else
                    ChangeDirection(2);
            }

            public void AI(int X, int Y)
            {
                Random rnd = new Random();
                if (rnd.Next(1, 11)>=3)
                {
                    if (rnd.Next(1, 3) == 2)
                    {
                        if (X > HeadX())
                        {
                            if (NX - X + HeadX() > X - HeadX())
                                TurnRight();

                            else
                                TurnLeft();
                        }
                        else if (X < HeadX())
                        {
                            if (NX - HeadX() + X > HeadX() - X)
                                TurnLeft();

                            else if (NX - X + HeadX() < X - HeadX())
                                TurnRight();
                        }
                    }
                    else
                    {
                        if (Y > HeadY())
                        {
                            if (NY - Y + HeadY() > Y - HeadY())
                                TurnDown();

                            else
                                TurnUp();
                        }
                        else if (Y < HeadY())
                        {
                            if (NY - HeadY() + Y > HeadY() - Y)
                                TurnUp();

                            else
                                TurnDown();
                        }

                    }
                }
                else
                {
                    ChangeDirection(rnd.Next(1, 5));
                }
            }