예제 #1
0
 /// <summary>
 /// Copy constructor.
 /// </summary>
 /// <param name="snakePart"></param>
 public SnakeBodyPart(SnakeBodyPart snakeBodyPart)
 {
     _gameBoardWidthPixels  = snakeBodyPart.GameBoardWidthPixels;
     _gameBoardHeightPixels = snakeBodyPart.GameBoardHeightPixels;
     _xPosition             = snakeBodyPart.XPosition;
     _yPosition             = snakeBodyPart.YPosition;
     _width             = snakeBodyPart.WidthPixels;
     _height            = snakeBodyPart.HeightPixels;
     _directionOfTravel = snakeBodyPart.DirectionOfTravel;
 }
예제 #2
0
파일: Snake.cs 프로젝트: prbasha/SnakeWPF
        /// <summary>
        /// The UpdateSnakeStatus method is called to update the status of the snake.
        /// The snake's position is updated.
        /// Events are raised if the snake has hit a boundary, hit itself, or eaten the cherry.
        /// </summary>
        public void UpdateSnakeStatus(Cherry theCherry)
        {
            while (_updatingSnake)
            {
                Thread.Sleep(50);
            }

            _updatingSnake = true;

            TheSnakeHead.UpdatePosition();    // Update the position of the snake's head.
            TheSnakeEye.UpdatePosition();     // Update the position of the snake's eye.

            // Update the position of the snake's body.
            Direction previousDirection;
            Direction nextDirection = TheSnakeHead.DirectionOfTravel;

            foreach (SnakeBodyPart bodyPart in _snakeBody)
            {
                bodyPart.UpdatePosition();
                previousDirection          = bodyPart.DirectionOfTravel;
                bodyPart.DirectionOfTravel = nextDirection;
                nextDirection = previousDirection;
            }


            // Check if the snake has hit a boundary.
            if (TheSnakeHead.HitBoundary())
            {
                // The snake has hit the boundary - raise an OnHitBoundary event.
                OnHitBoundary?.Invoke();
            }

            // Check if the snake has hit itself.
            if (TheSnakeHead.HitSelf(_snakeBody))
            {
                // The snake has hit itself - raise an OnHitSnake event.
                OnHitSnake?.Invoke();
            }

            // Check if the snake can eat the cherry.
            if (TheSnakeHead.EatCherry(theCherry))
            {
                // The snake has eaten the cherry - increase the length of the snake.
                SnakeBodyPart snakeBodyPart = new SnakeBodyPart(_gameBoardWidthPixels, _gameBoardHeightPixels, this);
                _snakeBody.Add(snakeBodyPart);

                // The snake has eaten the cherry - raise an OnEatCherry event.
                OnEatCherry?.Invoke();
            }

            _updatingSnake = false;
        }