public bool WalkSnake()
{
var newX = _snake.Head.X;
var newY = _snake.Head.Y;
switch (_snake.Facing)
{
case Direction.North:
newY--;
break;
case Direction.South:
newY++;
break;
case Direction.West:
newX--;
break;
case Direction.East:
newX++;
break;
default:
break;
}
if (_snake.IsSnake(newX, newY) || IsWall(newX, newY))
{
return(false);
}
_snake.AddNewHead(newX, newY);
_drawSnakeHead(_snake);
if (newX == _food.X && newY == _food.Y)
{
MoveFood();
_drawFood(_food);
}
else
{
_removeSnakeTail(_snake);
_snake.Tail = _snake.Tail.Next;
}
return(true);
}