public int CountMismatches(EightPuzzleBoard aBoard)
{
int count = 0;
for (int i = 0; i < 9; i++)
{
if (board[i] != aBoard[i] && board[i] != 0)
{
count++;
}
}
return(count);
}
public EightPuzzleBoard Scramble(int n)
{
var newPuzzle = new EightPuzzleBoard(this);
var directions = Enum.GetValues(typeof(Direction)).Cast <Direction>().ToList();
var lastDirection = Direction.DOWN;
for (int i = 0; i < n;)
{
var direction = directions[rng.Next(directions.Count)];
if (newPuzzle.CanMoveGap(direction) && (i == 0 || !direction.IsOppositeOf(lastDirection)))
{
newPuzzle.MoveGap(direction);
lastDirection = direction;
i += 1;
}
}
return(newPuzzle);
}
public EightPuzzleBoard(EightPuzzleBoard aBoard)
{
this.board = (int[])aBoard.board.Clone();
}