public void Grow()
{
double newTailX = SnakeParts[SnakeParts.Count - 1].Position.X;
double newTailY = SnakeParts[SnakeParts.Count - 1].Position.Y;
switch (SnakeDirection)
{
case SnakeDirection.Left:
newTailX -= Constants.SNAKESQUARESIZE;
break;
case SnakeDirection.Right:
newTailX += Constants.SNAKESQUARESIZE;
break;
case SnakeDirection.Up:
newTailY -= Constants.SNAKESQUARESIZE;
break;
case SnakeDirection.Down:
newTailY += Constants.SNAKESQUARESIZE;
break;
}
//Adding new tail to the snake to simulate its growth
ISnakePart newTail = Factory.CreateSnakePart();
newTail.Position = new Point(newTailX, newTailY);
SnakeParts.Add(newTail);
}
private void GenerateSnakePart()
{
Point last = new Point(Canvas.GetLeft(SnakeParts.Last()), Canvas.GetTop(SnakeParts.Last()));
Image snakePart = new Image
{
Source = new BitmapImage(new Uri(_colorPath)),
Height = _height,
Width = _height
};
SnakeParts.Add(snakePart);
switch (SnakeDriection)
{
case Direction.Right:
last.X -= 20;
break;
case Direction.Left:
last.X += 20;
break;
case Direction.Up:
last.Y += 20;
break;
case Direction.Down:
last.Y -= 20;
break;
}
Canvas.SetTop(snakePart, last.Y);
Canvas.SetLeft(snakePart, last.X);
_playField.Children.Add(snakePart);
}
public void GenerateSnake()
{
Image snakeHead = new Image
{
Source = new BitmapImage(new Uri(_colorPath))
};
snakeHead.Height = _height;
snakeHead.Width = _height;
SnakeParts.Add(snakeHead);
_playField.Children.Add(snakeHead);
}
//Constructor for new snake used at the beginning of each game
public SnakeObject()
{
//Snake initially always consists of 3 tiles, the tile at position 0 is snakes head
//Snake is initially positioned in the center of game area
SnakeParts.Add(new SnakePart(isHead: true)
{
Position = new Point(Constants.SNAKESQUARESIZE * 11, Constants.SNAKESQUARESIZE * 10),
});
SnakeParts.Add(new SnakePart()
{
Position = new Point(Constants.SNAKESQUARESIZE * 10, Constants.SNAKESQUARESIZE * 10)
});
SnakeParts.Add(new SnakePart()
{
Position = new Point(Constants.SNAKESQUARESIZE * 9, Constants.SNAKESQUARESIZE * 10)
});
}