private void InitValidations()
{
_validations = new List <FuncEnumPair <Point, Statuses> >
{
new FuncEnumPair <Point, Statuses>((origin, dest) =>
!(ChessUtils.IsValidPosition(origin) && ChessUtils.IsValidPosition(origin)),
Statuses.Invalid_Indexes),
new FuncEnumPair <Point, Statuses>((origin, dest) =>
Board.At(origin)?.Player != CurrPlayer,
Statuses.Invalid_OriginIsNotCurrentPlayerPiece),
new FuncEnumPair <Point, Statuses>((origin, dest) =>
Board.At(dest)?.Player == CurrPlayer,
Statuses.Invalid_DestIsCurrentPlayerPiece),
new FuncEnumPair <Point, Statuses>((origin, dest) =>
origin.Equals(dest),
Statuses.Invalid_OriginIsEqualToDest),
new FuncEnumPair <Point, Statuses>((origin, dest) =>
!Board.At(origin).GetPossibleMoves(Board).Contains(dest),
Statuses.Invalid_PieceMovement),
new FuncEnumPair <Point, Statuses>((origin, dest) =>
Board.At(origin).GetPossibleMoves(Board).Contains(dest),
Statuses.Valid)
};
}
private static IEnumerable <Point> GetSurroundingPositions(Point point, int xIncrementor, int yIncrementor)
{
var points = new Point[]
{
new Point(point.X + xIncrementor, point.Y + yIncrementor),
new Point(point.X - xIncrementor, point.Y - yIncrementor)
};
return(points.Where(surroundingPoint => ChessUtils.IsValidPosition(surroundingPoint)));
}
private static IEnumerable <Point> GetLinePossibleMoves(Piece piece, Piece[][] board,
int loopXIncrementor, int loopYIncrementor)
{
ICollection <Point> possibleMoves = new List <Point>();
if (loopXIncrementor == 0 && loopYIncrementor == 0)
{
throw new ArgumentException();
}
var iterator = 1;
while (ChessUtils.IsValidPosition(piece.Position.X + loopXIncrementor * iterator,
piece.Position.Y + loopYIncrementor * iterator))
{
var xPos = piece.Position.X + loopXIncrementor * iterator;
var yPos = piece.Position.Y + loopYIncrementor * iterator;
if (board[yPos][xPos] == null)
{
possibleMoves.Add(new Point(xPos, yPos));
}
else
{
if (board[yPos][xPos].Player != piece.Player)
{
possibleMoves.Add(new Point(xPos, yPos));
break;
}
else
{
break;
}
}
iterator++;
}
return(possibleMoves);
}