/// <summary>
/// Calucalte new game boards which are optional moves
/// </summary>
/// <param name="board"></param>
/// <param name="player"></param>
/// <returns></returns>
public IDictionary<Board, IList<Coordinate>> CalculateNewBoardsFromCoordinates(Board board, Player player)
{
IDictionary<Board, IList<Coordinate>> newBoardsPositions = new Dictionary<Board, IList<Coordinate>>();
for (int i = 1; i <= board.Size; i++)
{
if (board.IsOwner(player, board[i]))
{
IList<Coordinate> coordinateList = GetMovesInDirection(board, board[i], player);
foreach (Coordinate coordinate in coordinateList.Reverse())
{
//if a soldier of mine exists in this coord then this coord is not optional;
if (board.IsOwner(player, coordinate))
{
coordinateList.Remove(coordinate);
}
//if an oppenent soldier exsist in this coord try capturing him!
else if (board.IsOpponentPiece(player, coordinate))
{
IList<Coordinate> destList =
CoordsToCaptureAndDest(board, board[i], coordinate, player).Values.ToList();
if (destList.Count != 0)
{
// destList is all the coordinates presenting the board after the capture.
foreach (Coordinate coord in destList.Reverse())
{
Board nBoard = board.Copy();
nBoard.UpdateBoard(nBoard[nBoard.Search(board[i])], coord);
IsBecameAKing(nBoard, coord);
IList<Coordinate> temp = new List<Coordinate>();
temp.Add(nBoard[nBoard.Search(board[i])]);
temp.Add(nBoard[nBoard.Search(coord)]);
newBoardsPositions.Add(nBoard, temp);
}
}
}
else if (!board.IsAloacted(coordinate))
{
//create new board that represnt board after the move
Board nBoard = board.Copy();
nBoard.UpdateBoard(nBoard[nBoard.Search(board[i])], coordinate);
IsBecameAKing(nBoard, coordinate);
IList<Coordinate> temp = new List<Coordinate>();
temp.Add(nBoard[nBoard.Search(board[i])]);
temp.Add(nBoard[nBoard.Search(coordinate)]);
newBoardsPositions.Add(nBoard, temp);
}
}
}
}
return newBoardsPositions;
}
/// <summary>
/// in case this move isn't a capture- check if valid
/// </summary>
/// <param name="board"></param>
/// <param name="srcCoord"></param>
/// <param name="destCoord"></param>
/// <param name="player"></param>
/// <returns></returns>
public bool IsValidMove(Board board, Coordinate srcCoord, Coordinate destCoord, Player player)
{
//Check if the move is in bounds
if (!(InBounds(board, srcCoord.X, srcCoord.Y)) || !(InBounds(board, destCoord.X, destCoord.Y)))
return false;
//Check if is in direction and not more than 1 step
if ((Math.Abs(srcCoord.X - destCoord.X) > 1) || (Math.Abs(srcCoord.Y - destCoord.Y) > 1))
return false;
//Find all availables move for the piece
IList<Coordinate> coordsInDir = GetMovesInDirection(board, srcCoord, player);
//crossing data with available moves and free location
return coordsInDir.Contains(destCoord) && !board.IsAloacted(destCoord);
}
