public void CheckAndExecuteCastling(IPieceMovement movement)
{
if (this.IsCastlingFullyCorrect(movement))
{
this.ExecuteCastle(movement);
}
}
public QueenMovement(GCPlayer player, Piece piece) : base(player, piece)
{
rook = new RookMovement(player, piece);
bishop = new BishopMovement(player, piece);
BoundComputations += rook.ComputeBound;
BoundComputations += bishop.ComputeBound;
}
private bool IsPathToCastleFreeFromCheck(IPieceMovement movement)
{
int increment = movement.Origin.X > movement.Destination.X ? -LATERAL_INCREMENT
: LATERAL_INCREMENT;
IBoardPosition nextToItPos = new BoardPosition(movement.Origin.X + increment,
movement.Origin.Y);
return(this.gameController
.WouldNotBeInCheck(new PieceMovement(movement.PieceInvolved, movement.Origin, nextToItPos)));
}
private void ExecuteCastle(IPieceMovement movement)
{
int increment = movement.Origin.X > movement.Destination.X ? LATERAL_INCREMENT
: -LATERAL_INCREMENT;
IPiece rook = this.GetClosestRookInRangeThatHasntMovedYet(movement);
if (rook != null)
{
rook.PiecePosition = new BoardPosition(movement.Destination.X + increment, rook.PiecePosition.Y);
movement.Execute();
}
}
private IPiece GetClosestRookInRangeThatHasntMovedYet(IPieceMovement mov)
{
foreach (IPiece piece in this.gameController.GetBoard().GetPieces())
{
if (piece.Type.Equals(PieceType.ROOK) && Math.Abs(piece.PiecePosition.X - mov.Destination.X) <= 2 &&
piece.PiecePosition.Y == mov.Destination.Y &&
piece.Player.Equals(mov.PieceInvolved.Player) && !piece.HasMoved)
{
return(piece);
}
}
return(null);
}
private bool ArePreliminarChecksOnCastlingValid(IPieceMovement movement)
{
return(!this.castlingManager.MightItBeCastle(movement) || this.castlingManager.IsCastlingFullyCorrect(movement));
}
public bool IsMovementPossible(IPieceMovement movement)
{
return(this.PossibleDestinations(movement.PieceInvolved).Contains(movement.Destination));
}
private bool ExtraChecksOnCastling(IPieceMovement movement)
{
return(this.IsPathToCastleFreeFromCheck(movement) &&
this.GetClosestRookInRangeThatHasntMovedYet(movement) != null);
}
private bool ArePositionalConditionsCorrectToCastle(IPieceMovement movement)
{
return(movement.PieceInvolved.Type.Equals(PieceType.KING) &&
Math.Abs(movement.Origin.X - movement.Destination.X) == 2 &&
movement.Origin.Y == movement.Destination.Y);
}
public bool IsCastlingFullyCorrect(IPieceMovement movement)
{
return(this.ArePositionalConditionsCorrectToCastle(movement) && this.ExtraChecksOnCastling(movement));
}
public bool MightItBeCastle(IPieceMovement movement)
{
return(this.ArePositionalConditionsCorrectToCastle(movement));
}