public override bool canMove(int x1, int y1, int x2, int y2, int Player)
{
if (canMoveAux(x1, y1, x2, y2, Player))
{
Piece eaten_piece = BOARD.getPiece(x2, y2);
Board BOARD_BACKUP = BOARD.backup();
if (canMoveAux(x1, y1, x2, y2, Player))
{
if ((y1 != y2) && eaten_piece.getClass2() == NullPiece.getClass() && ((ChessPiece)BOARD.getPiece(x1, y1)).get_type().Equals(ChessPiece.PAWN, StringComparison.CurrentCultureIgnoreCase))
{
eaten_piece = BOARD.getPiece(x1, y2);
BOARD.removePiece(x1, y2);
}
BOARD.movePiece(x1, y1, x2, y2);
if (inCheck(Player))
{
BOARD = BOARD_BACKUP;
return(false);
}
else
{
BOARD = BOARD_BACKUP;
return(true);
}
}
BOARD = BOARD_BACKUP;
}
return(false);
}
public override bool move(int x1, int y1, int x2, int y2, int Player)
{
if (canMove(x1, y1, x2, y2, Player))
{
BOARD.movePiece(x1, y1, x2, y2);
if ((Player == PLAYER1) && (x2 == 7))
{
((CheckersPiece)BOARD.getPiece(x2, y2)).TYPE = CheckersPiece.CHECKER;
}
else if ((Player == PLAYER2) && (x2 == 0))
{
((CheckersPiece)BOARD.getPiece(x2, y2)).TYPE = CheckersPiece.CHECKER;
}
if (Math.Abs(x2 - x1) == 2 && Math.Abs(y2 - y1) == 2)
{
int x_adversary = x1 + (x2 - x1) / 2;
int y_adversary = y1 + (y2 - y1) / 2;
eat(x_adversary, y_adversary);
if (isPossibleToKeepEating(x2, y2, Player))
{
EAT_MOVE = true;
EAT_PIECE = BOARD.getPiece(x2, y2);
CONT_ID++;
if (gameEnded())
{
Console.WriteLine("End game. Winner: " + WINNER);
}
return(true);
}
}
EAT_MOVE = false;
if (Player == PLAYER1)
{
ACTUAL_PLAYER = PLAYER2;
}
else
{
ACTUAL_PLAYER = PLAYER1;
}
CONT_ID++;
if (gameEnded())
{
Console.WriteLine("End game. Winner: " + WINNER);
}
return(true);
}
return(false);
}
public bool canMoveAux(int x1, int y1, int x2, int y2, int Player)
{
if (GAME_ENDED || WAITING_PLAYERS)
{
return(false);
}
if (Player != ACTUAL_PLAYER)
{
return(false);
}
if (!BOARD.validCell(x1, y1) || !BOARD.validCell(x2, y2))
{
return(false);
}
if (BOARD.getPiece(x1, y1).getClass2() == NullPiece.getClass())
{
return(false);
}
bool null_destination = true;
if (BOARD.getPiece(x2, y2).getClass2() != NullPiece.getClass())
{
null_destination = false;
if (((ChessPiece)BOARD.getPiece(x2, y2)).PLAYER == Player)
{
return(false);
}
}
ChessPiece P1 = (ChessPiece)BOARD.getPiece(x1, y1);
if (P1.getPlayer() != Player)
{
Console.WriteLine("The piece belong to the other player: " + P1.getPlayer() + ", you are " + Player);
return(false);
}
if (P1.get_type().Equals(ChessPiece.PAWN, StringComparison.CurrentCultureIgnoreCase))
{
if (Player == PLAYER1)
{
if ((x2 - x1 == -1) && (y2 == y1) && (null_destination))
{
return(true);
}
else if ((x2 - x1 == -2) && (y2 == y1) && (x1 == 6) && (null_destination))
{
return(true);
}
else if ((x2 - x1 == -1) && Math.Abs(y2 - y1) == 1)
{
if (!(null_destination))
{
return(true);
}
else if (BOARD.getPiece(x1, y2).getClass2() != NullPiece.getClass())
{
if (((ChessPiece)BOARD.getPiece(x1, y2)).PLAYER != Player && ((ChessPiece)BOARD.getPiece(x1, y2)).get_type().Equals(ChessPiece.PAWN, StringComparison.CurrentCultureIgnoreCase))
{
if ((LAST_ACTION.getClass2() == MoveAction.getClass()))
{
if (((MoveAction)LAST_ACTION).TO_X == x1 && ((MoveAction)LAST_ACTION).TO_Y == y2 && ((ChessPiece)((MoveAction)LAST_ACTION).ACTOR).get_type().Equals(ChessPiece.PAWN, StringComparison.CurrentCultureIgnoreCase) && ((MoveAction)LAST_ACTION).FROM_X == x1 - 2)
{
return(true);
}
}
}
}
}
}
else if (Player == PLAYER2)
{
if ((x2 - x1 == 1) && (y2 == y1) && (null_destination))
{
return(true);
}
else if ((x2 - x1 == 2) && (y2 == y1) && (x1 == 1) && (null_destination))
{
return(true);
}
else if ((x2 - x1 == 1) && Math.Abs(y2 - y1) == 1)
{
if (!(null_destination))
{
return(true);
}
else if (BOARD.getPiece(x1, y2).getClass2() != NullPiece.getClass())
{
if (((ChessPiece)BOARD.getPiece(x1, y2)).PLAYER != Player && ((ChessPiece)BOARD.getPiece(x1, y2)).get_type().Equals(ChessPiece.PAWN, StringComparison.CurrentCultureIgnoreCase))
{
if ((LAST_ACTION.getClass2() == MoveAction.getClass()))
{
if (((MoveAction)LAST_ACTION).TO_X == x1 && ((MoveAction)LAST_ACTION).TO_Y == y2 && ((ChessPiece)((MoveAction)LAST_ACTION).ACTOR).get_type().Equals(ChessPiece.PAWN, StringComparison.CurrentCultureIgnoreCase) && ((MoveAction)LAST_ACTION).FROM_X == x1 + 2)
{
return(true);
}
}
}
}
}
}
}
else if (P1.get_type().Equals(ChessPiece.KNIGHT, StringComparison.CurrentCultureIgnoreCase))
{
if (((Math.Abs(x2 - x1) == 1) && (Math.Abs(y2 - y1) == 2)) || ((Math.Abs(x2 - x1) == 2) && (Math.Abs(y2 - y1) == 1)))
{
return(true);
}
}
else if (P1.get_type().Equals(ChessPiece.BISHOP, StringComparison.CurrentCultureIgnoreCase))
{
if (Math.Abs(x2 - x1) == Math.Abs(y2 - y1) && y2 != y1)
{
if (!thereIsSomeoneInTheWay(x1, y1, x2, y2))
{
return(true);
}
}
}
else if (P1.get_type().Equals(ChessPiece.ROOK, StringComparison.CurrentCultureIgnoreCase))
{
if ((x2 - x1 == 0 && Math.Abs(y2 - y1) > 0) || (y2 - y1 == 0 && Math.Abs(x2 - x1) > 0))
{
if (!thereIsSomeoneInTheWay(x1, y1, x2, y2))
{
return(true);
}
}
}
else if (P1.get_type().Equals(ChessPiece.QUEEN, StringComparison.CurrentCultureIgnoreCase))
{
if ((x2 - x1 == 0 && Math.Abs(y2 - y1) > 0) || (y2 - y1 == 0 && Math.Abs(x2 - x1) > 0))
{
if (!thereIsSomeoneInTheWay(x1, y1, x2, y2))
{
return(true);
}
}
else if (Math.Abs(x2 - x1) == Math.Abs(y2 - y1) && y2 != y1)
{
if (!thereIsSomeoneInTheWay(x1, y1, x2, y2))
{
return(true);
}
}
}
else if (P1.get_type().Equals(ChessPiece.KING, StringComparison.CurrentCultureIgnoreCase))
{
if ((Math.Abs(y2 - y1) <= 1) && (Math.Abs(x2 - x1) <= 1) && (Math.Abs(y2 - y1) + Math.Abs(x2 - x1) >= 1))
{
return(true);
}
else
{
if (Player == PLAYER1)
{
if (KING_PLAYER1_MOVED == false)
{
if (x1 == 7 && y1 == 4 && x2 == 7 && y2 == 6)
{
if (RIGHT_ROOK_PLAYER1_MOVED == false && BOARD.getPiece(7, 5).getClass2() == NullPiece.getClass() && BOARD.getPiece(7, 6).getClass2() == NullPiece.getClass())
{
if (BOARD.getPiece(x1, 7).getClass2().Equals(ChessPiece.getClass()))
{
if (((ChessPiece)BOARD.getPiece(x1, 7)).PLAYER == Player && ((ChessPiece)BOARD.getPiece(x1, 7)).get_type().Equals(ChessPiece.ROOK, StringComparison.CurrentCultureIgnoreCase))
{
Board BACK_BOARD = BOARD.backup();
if (canMove(x1, y1, x2, 5, Player))
{
BOARD.movePiece(x1, y1, x2, y2);
BOARD.movePiece(x1, y1, x2, 5);
bool CanCastling = !(inCheck(Player));
BOARD = BACK_BOARD;
Console.WriteLine("Can roque!");
return(CanCastling);
}
}
}
}
}
else if (x1 == 7 && y1 == 4 && x2 == 7 && y2 == 2)
{
if (LEFT_ROOK_PLAYER1_MOVED == false && BOARD.getPiece(7, 1).getClass2() == NullPiece.getClass() && BOARD.getPiece(7, 2).getClass2() == NullPiece.getClass() && BOARD.getPiece(7, 3).getClass2() == NullPiece.getClass())
{
if (BOARD.getPiece(x1, 0).getClass2().Equals(ChessPiece.getClass()))
{
if (((ChessPiece)BOARD.getPiece(x1, 0)).PLAYER == Player && ((ChessPiece)BOARD.getPiece(x1, 7)).get_type().Equals(ChessPiece.ROOK, StringComparison.CurrentCultureIgnoreCase))
{
Board BACK_BOARD = BOARD.backup();
if (canMove(x1, y1, x2, 3, Player))
{
BOARD.movePiece(x1, y1, x2, y2);
BOARD.movePiece(x1, y1, x2, 3);
bool CanCastling = !(inCheck(Player));
BOARD = BACK_BOARD;
Console.WriteLine("Can roque!");
return(CanCastling);
}
}
}
}
}
}
}
if (Player == PLAYER2)
{
if (KING_PLAYER2_MOVED == false)
{
if (x1 == 0 && y1 == 4 && x2 == 0 && y2 == 6)
{
if (RIGHT_ROOK_PLAYER2_MOVED == false && BOARD.getPiece(0, 5).getClass2() == NullPiece.getClass() && BOARD.getPiece(0, 6).getClass2() == NullPiece.getClass())
{
if (BOARD.getPiece(x1, 0).getClass2().Equals(ChessPiece.getClass()))
{
if (((ChessPiece)BOARD.getPiece(x1, 0)).PLAYER == Player && ((ChessPiece)BOARD.getPiece(x1, 0)).get_type().Equals(ChessPiece.ROOK, StringComparison.CurrentCultureIgnoreCase))
{
Board BACK_BOARD = BOARD.backup();
if (canMove(x1, y1, x2, 5, Player))
{
BOARD.movePiece(x1, y1, x2, y2);
BOARD.movePiece(x1, y1, x2, 5);
bool CanCastling = !(inCheck(Player));
BOARD = BACK_BOARD;
Console.WriteLine("Can roque!");
return(CanCastling);
}
}
}
}
}
else if (x1 == 0 && y1 == 4 && x2 == 0 && y2 == 2)
{
if (LEFT_ROOK_PLAYER1_MOVED == false && BOARD.getPiece(0, 1).getClass2() == NullPiece.getClass() && BOARD.getPiece(0, 2).getClass2() == NullPiece.getClass() && BOARD.getPiece(0, 3).getClass2() == NullPiece.getClass())
{
if (BOARD.getPiece(x1, 0).getClass2().Equals(ChessPiece.getClass()))
{
if (((ChessPiece)BOARD.getPiece(x1, 0)).PLAYER == Player && ((ChessPiece)BOARD.getPiece(x1, 0)).get_type().Equals(ChessPiece.ROOK, StringComparison.CurrentCultureIgnoreCase))
{
Board BACK_BOARD = BOARD.backup();
if (canMove(x1, y1, x2, 3, Player))
{
BOARD.movePiece(x1, y1, x2, y2);
BOARD.movePiece(x1, y1, x2, 3);
bool CanCastling = !(inCheck(Player));
BOARD = BACK_BOARD;
Console.WriteLine("Can roque!");
return(CanCastling);
}
}
}
}
}
}
}
}
}
return(false);
}
public override bool move(int x1, int y1, int x2, int y2, int Player)
{
bool eat = false;
Piece eaten_piece = BOARD.getPiece(x2, y2);
bool CheckMate = false;
if (canMove(x1, y1, x2, y2, Player))
{
int x3 = x2;
int y3 = y2;
if ((y1 != y2) && eaten_piece.getClass2() == NullPiece.getClass() && ((ChessPiece)BOARD.getPiece(x1, y1)).get_type().Equals(ChessPiece.PAWN, StringComparison.CurrentCultureIgnoreCase))
{
eaten_piece = BOARD.getPiece(x1, y2);
BOARD.removePiece(x1, y2);
x3 = x1;
y3 = y2;
}
if (eaten_piece.getClass2() != NullPiece.getClass())
{
eat = true;
}
if ((x1 == 0 && y1 == 0) && (!LEFT_ROOK_PLAYER2_MOVED))
{
LEFT_ROOK_PLAYER2_MOVED = true;
}
else if ((x1 == 0 && y1 == 7) && (!RIGHT_ROOK_PLAYER2_MOVED))
{
RIGHT_ROOK_PLAYER2_MOVED = true;
}
else if ((x1 == 7 && y1 == 0) && (!LEFT_ROOK_PLAYER1_MOVED))
{
LEFT_ROOK_PLAYER1_MOVED = true;
}
else if ((x1 == 7 && y1 == 7) && (!RIGHT_ROOK_PLAYER1_MOVED))
{
RIGHT_ROOK_PLAYER1_MOVED = true;
}
if (((ChessPiece)BOARD.getPiece(x1, y1)).get_type().Equals(ChessPiece.KING, StringComparison.CurrentCultureIgnoreCase))
{
if (Player == PLAYER1)
{
KING_PLAYER1_MOVED = true;
}
else
{
KING_PLAYER2_MOVED = true;
}
}
bool change_pawn = false;
if (((ChessPiece)BOARD.getPiece(x1, y1)).get_type().Equals(ChessPiece.PAWN, StringComparison.CurrentCultureIgnoreCase))
{
if (x2 == 0 || x2 == 7)
{
change_pawn = true;
}
}
if (x1 == 7 && y1 == 4 && ((ChessPiece)BOARD.getPiece(x1, y1)).get_type().Equals(ChessPiece.KING, StringComparison.CurrentCultureIgnoreCase) && Math.Abs(y2 - y1) > 1)
{
if (y2 == 2)
{
BOARD.movePiece(7, 0, 7, 3);
}
else
{
BOARD.movePiece(7, 7, 7, 5);
}
}
else if (x1 == 0 && y1 == 4 && ((ChessPiece)BOARD.getPiece(x1, y1)).get_type().Equals(ChessPiece.KING, StringComparison.CurrentCultureIgnoreCase) && Math.Abs(y2 - y1) > 1)
{
if (y2 == 2)
{
BOARD.movePiece(0, 0, 0, 3);
}
else
{
BOARD.movePiece(0, 7, 0, 5);
}
}
BOARD.movePiece(x1, y1, x2, y2);
if (change_pawn)
{
if (x2 == 0)
{
BOARD.addPiece(x2, y2, new ChessPiece("X", PLAYER1, ChessPiece.QUEEN));
}
else
{
BOARD.addPiece(x2, y2, new ChessPiece("O", PLAYER2, ChessPiece.QUEEN));
}
}
String CheckTag = "";
if (Player == PLAYER1 && inCheck(PLAYER2))
{
CheckTag = "<CHECK MESSAGE>PLAYER2 IN CHECK</CHECK MESSAGE>";
}
else if (Player == PLAYER2 && inCheck(PLAYER1))
{
CheckTag = "<CHECK MESSAGE>PLAYER1 IN CHECK</CHECK MESSAGE>";
}
if (eat)
{
LAST_ACTION = new MoveAndEatAction(x1, y1, x2, y2, BOARD.getPiece(x2, y2), eaten_piece, x3, y3);
}
else
{
LAST_ACTION = new MoveAction(x1, y1, x2, y2, BOARD.getPiece(x2, y2));
}
if (ACTUAL_PLAYER == PLAYER1)
{
ACTUAL_PLAYER = PLAYER2;
}
else
{
ACTUAL_PLAYER = PLAYER1;
}
CheckMate = inCheckMate(ACTUAL_PLAYER);
if (CheckMate)
{
if (ACTUAL_PLAYER == PLAYER1)
{
CheckTag = "<CHECK MESSAGE>PLAYER1 IN CHECKMATE</CHECK MESSAGE>";
WINNER = PLAYER2;
}
else
{
CheckTag = "<CHECK MESSAGE>PLAYER2 IN CHECKMATE</CHECK MESSAGE>";
WINNER = PLAYER1;
}
GAME_ENDED = true;
}
LAST_MESSAGE = "<LAST ACTION>" + LAST_ACTION.action2String() + "</LAST ACTION>" + CheckTag;
if (CheckMate)
{
Console.WriteLine(" CheckMate: " + CheckMate);
}
return(true);
}
return(false);
}
