/// <summary>
/// Gets a move from its CAN (coordinate algebraic notation).
/// Throws ArgumentException if it's not a valid move.
/// </summary>
/// <param name="game">The game</param>
/// <param name="can">The CAN string</param>
/// <returns></returns>
public static Move GetCANMove(Game game, string can)
{
// the game must not be null
if (game == null)
{
throw new ArgumentNullException("game", Resources.NullGameMsg);
}
// the CAN string must not be null
if (can == null)
{
throw new ArgumentNullException("can", Resources.NullCANMsg);
}
// check if the string is well-formed
if (can.Length < 4 || can[0] < 'a' || can[0] > 'h' || can[1] < '1' || can[1] > '8' || can[2] < 'a' || can[2] > 'h' || can[3] < '1' || can[3] > '8')
{
throw new ArgumentException(Resources.IllegalCANFormatMsg, "can");
}
// get the starting square
int from = GetPosition(can[0], can[1]);
// get the ending square
int to = GetPosition(can[2], can[3]);
// get the promotion
Type promotionType = (can.Length > 4) ? GetPromotionType(game.CurrentBoard.Status.WhiteTurn, can[4]) : null;
// look into the possible moves to find it
Move move = game.GetMove(from, to, promotionType);
if ((move == null) || (move is PromotionMove && (move as PromotionMove).PromotionType == null))
{
throw new ArgumentException(Resources.IllegalCANMoveMsg, "can");
}
return(move);
}
/// <summary>
/// Gets a move from its CAN (coordinate algebraic notation).
/// Throws ArgumentException if it's not a valid move.
/// </summary>
/// <param name="game">The game</param>
/// <param name="can">The CAN string</param>
/// <returns></returns>
public static Move GetCANMove(Game game, string can)
{
// the game must not be null
if (game == null) { throw new ArgumentNullException("game", "Resources.NullGameMsg"); }
// the CAN string must not be null
if (can == null) { throw new ArgumentNullException("can", "Resources.NullCANMsg"); }
// check if the string is well-formed
if (can.Length < 4 || can[0] < 'a' || can[0] > 'h' || can[1] < '1' || can[1] > '8' || can[2] < 'a' || can[2] > 'h' || can[3] < '1' || can[3] > '8')
{
throw new ArgumentException("Resources.IllegalCANFormatMsg", "can");
}
// get the starting square
int from = GetPosition(can[0], can[1]);
// get the ending square
int to = GetPosition(can[2], can[3]);
// get the promotion
Type promotionType = (can.Length > 4) ? GetPromotionType(game.CurrentBoard.Status.WhiteTurn, can[4]) : null;
// look into the possible moves to find it
Move move = game.GetMove(from, to, promotionType);
if ((move == null) || (move is PromotionMove && (move as PromotionMove).PromotionType == null))
{
throw new ArgumentException("Resources.IllegalCANMoveMsg", "can");
}
return move;
}