public object Clone()
{
var clone = new TetriBricksGame();
foreach (BrickColumn bc in Columns)
{
var bcClone = new BrickColumn();
foreach (Brick b in bc.Bricks)
{
var bClone = new Brick(b.Row, b.Column, b.Color);
bcClone.Bricks.Add(bClone);
}
clone.Columns.Add(bcClone);
}
return clone;
}
public List<Brick> GetAdjacentBricks(Brick brick)
{
var foundBricks = new List<Brick>();
List<Brick> bricksToSearch = Bricks;
FindNeighbors(brick, foundBricks, bricksToSearch);
return foundBricks;
}
private void FindNeighbors(Brick brick, List<Brick> foundBricks, List<Brick> bricksToSearch)
{
IEnumerable<Brick> neighbors = from b in bricksToSearch
where b.Color == brick.Color
&& (
((Math.Abs(b.Row - brick.Row) == 1) &&
(b.Column == brick.Column))
||
((Math.Abs(brick.Column - b.Column) == 1) &&
(brick.Row == b.Row))
)
select b;
foreach (Brick b in neighbors.Where(b => !foundBricks.Contains(b)))
{
foundBricks.Add(b);
FindNeighbors(b, foundBricks, bricksToSearch);
}
}
internal bool RemoveBrick(Brick brick)
{
// is there a future ?
if (_moveHistory.Count - 1 > _currentMove)
{
_moveHistory.RemoveRange(_currentMove + 1, (_moveHistory.Count - 1 - _currentMove));
_currentMove = _moveHistory.Count - 1;
}
List<Brick> bricks = CurrentGame.GetAdjacentBricks(brick);
if (bricks.Count > 1)
{
var gameStep = (TetriBricksGame) CurrentGame.Clone();
gameStep.RemoveBricks(bricks);
gameStep.Score = gameStep.Score + CurrentGame.Score;
_moveHistory.Add(gameStep);
_currentMove = _moveHistory.Count - 1;
return true;
}
else
return false;
}