public ChessSquare(int x, int y, ChessColor color)
{
Loc = new Location();
Loc.X = x;
Loc.Y = y;
Color = color;
}
public Controller()
{
_board = new ChessBoard();
_startLoc = new Location();
_endLoc = new Location();
_turn = 1;
_selectedSquare = null;
_promotion = 0;
}
public Square(string image)
{
Pic = new Image();
loc = new Location();
_panel = new StackPanel();
_panel.Orientation = Orientation.Horizontal;
_panel.Margin = new System.Windows.Thickness(5);
BitmapImage source = new BitmapImage();
source.BeginInit();
source.UriSource = new Uri("Images/" + image, UriKind.RelativeOrAbsolute);
source.EndInit();
Pic.Source = source;
_panel.Children.Add(Pic);
this.Content = _panel;
}
/// <summary>
/// Checks if a player is in check.
/// If they are, then it determines if the king has no way to get out of check.
/// Prints out checkmate if the king can not get out of check.
/// </summary>
/// <param name="turn">An int representing a player's turn.</param>
public void IsInCheckMate(int turn)
{
List<int[]> kingsMoves = new List<int[]>();
List<int[]> enemyMoves = new List<int[]>();
bool inCheck = IsInCheck(turn);
int[] king = new int[2];//The king(that is in check)'s location.
if (inCheck == true)//If check has occurred.
{
inCheck = CantBeSaved();
if (inCheck == true)//If the piece could be saved.
{
for (int x = 0; x < 8; ++x)
{
for (int y = 0; y < 8; y++)
{
if (Board.Squares[x, y].Piece.GetType() == typeof(King))//Loops through every piece searching for the king in check.
{
if ((int)Board.Squares[x, y].Piece.Color == turn)//Makes sure the color of the king is that of the current player's turn.
{
king = new int[] { x, y };//Stores the king's location.
}
}
}
}//End of the for loop
kingsMoves = Board.Squares[king[0], king[1]].Piece.RestrictMovement(Board.Squares, king[0], king[1]);//Stores the kings movements.
for (int x = 0; x < 8; ++x)
{
for (int y = 0; y < 8; y++)
{
if ((int)Board.Squares[x, y].Piece.Color != turn)
{
Location pieceLoc = new Location();//Gets the current piece's location, which will eventually loop through all pieces.
pieceLoc.X = x;
pieceLoc.Y = y;
//Gets all possible legal moves for current enemy piece.
List<int[]> placeHold = Board.Squares[x, y].Piece.RestrictMovement(Board.Squares, pieceLoc.X, pieceLoc.Y);
for (int j = 0; j < placeHold.Count; ++j)
{
enemyMoves.Add(placeHold[j]);//Adds all possible legal movements from the enemy piece being looped through.
}
}
}
}//End of the for loop
bool[] cantMove = new bool[kingsMoves.Count];//Sets a bool array length to the length of kingsMoves.
for (int j = 0; j < enemyMoves.Count; ++j)
{
for (int k = 0; k < kingsMoves.Count; ++k)
{
//Checks if any of the kings movements will make the king go back in check
if (enemyMoves[j][0] == kingsMoves[k][0] && enemyMoves[j][1] == kingsMoves[k][1])
{
cantMove[k] = true;
}
}
}//End of the for loop
int num = 0;
for (int z = 0; z < cantMove.Count(); ++z)
{
//Checks if all of kings moves will make him captured
if (cantMove[z] == true)
{
++num;
}
}//End of the for loop
if (num == cantMove.Length)//If all the kings movements will cause the king to get captures.
{
PrintWinner();
}
}
}
}
/// <summary>
/// Grabs all available legal moves from every piece and checks if an
/// available legal move from that piece can kill the opposite colored king.
/// Prints out the kings status.
/// </summary>
///<returns>
///True: If a piece can move to kill a king.
///False: If no move can capture a king.
/// </returns>
public bool IsInCheck(int turn)
{
List<int[]> movements = new List<int[]>();//A storage for all possible legal move for the pieces.
List<int[]> Pieces = new List<int[]>();
int[] lKing = new int[2];//Light king's location.
int[] dKing = new int[2];//Dark king's location.
inCheck = false;
for (int x = 0; x < 8; ++x)
{
for (int y = 0; y < 8; y++)
{
Location pieceLoc = new Location();//Gets the current piece's location, which will eventually loop through all pieces.
pieceLoc.X = x;
pieceLoc.Y = y;
List<int[]> placeHold = Board.Squares[x, y].Piece.RestrictMovement(Board.Squares, pieceLoc.X, pieceLoc.Y);//Gets all possible legal moves for current piece.
for (int j = 0; j < placeHold.Count; ++j)
{
movements.Add(placeHold[j]);//Adds all possible legal movements from the current piece being looped through.
Pieces.Add(new int[] { pieceLoc.X, pieceLoc.Y });//Contains all piece's that have legal moves.
}
if (Board.Squares[x, y].Piece.GetType() == typeof(King))
{
if (Board.Squares[x, y].Piece.Color == ChessColor.LIGHT)
{
lKing = new int[] { x, y };//Stores the light king's location.
}
else
{
dKing = new int[] { x, y };//Stores the dark king's location.
}
}
}
}
for (int x = 0; x < movements.Count; ++x)//Loops through all possible legal moves.
{
string[] word = GrabPiece(movements[x][0], movements[x][1]);//Word is equal to a move.
if (movements[x][0] == lKing[0] && movements[x][1] == lKing[1])//If a move is the same as the light king's location.
{
MessageBox.Show("Light King is In danger!!!", "Check");
inCheck = true;
}
else if (movements[x][0] == dKing[0] && movements[x][1] == dKing[1])//If a move is the same as the dark king's location.
{
MessageBox.Show("Dark King is In danger!!!", "Check");
inCheck = true;
}
}
return inCheck;
}
/// <summary>
/// Checks if a piece can save the the same colored king from checkmate.
/// </summary>
/// <returns>
/// True: If no piece can take the king out of check.
/// False: If the king can be taken out of check.
/// </returns>
public bool CantBeSaved()
{
List<int[]> movements = new List<int[]>();//A storage for all possible legal move for the pieces.
List<int[]> Pieces = new List<int[]>();//a list
List<int[]> placeHold = new List<int[]>();//A placeholder for a piece's movements
List<int[]> placeHold2 = new List<int[]>();//A placeholder for a piece's movements
int[] lKing = new int[2];//Light king's location.
int[] dKing = new int[2];//Dark king's location.
bool inCheck = true;
for (int x = 0; x < 8; ++x)
{
for (int y = 0; y < 8; y++)
{
Location pieceLoc = new Location();//Gets the current piece's location, which will eventually loop through all pieces.
pieceLoc.X = x;
pieceLoc.Y = y;
placeHold = Board.Squares[x, y].Piece.RestrictMovement(Board.Squares, pieceLoc.X, pieceLoc.Y);//Gets all possible legal moves for current piece.
for (int j = 0; j < placeHold.Count; ++j)
{
movements.Add(placeHold[j]);//Adds all possible legal movements from the current piece being looped through.
Pieces.Add(new int[] { pieceLoc.X, pieceLoc.Y });//Contains all piece's that have legal moves.
}
if (Board.Squares[x, y].Piece.GetType() == typeof(King))
{
if (Board.Squares[x, y].Piece.Color == ChessColor.LIGHT)
{
lKing = new int[] { x, y };//Stores the light king's location.
}
else
{
dKing = new int[] { x, y };//Stores the dark king's location.
}
}
}
}
placeHold = new List<int[]>();
for (int x = 0; x < movements.Count; ++x)//Loops through all possible legal moves.
{
if (movements[x][0] == lKing[0] && movements[x][1] == lKing[1])//If an enemy movement is the same as the light king's location.
{
//Returns moves leading to the king's location.
placeHold = Board.Squares[Pieces[x][0], Pieces[x][1]].Piece.Search(Board.Squares, Pieces[x][0], Pieces[x][1], lKing[0], lKing[1]);
for (int v = 0; v < movements.Count; ++v)//Loops through all possible legal moves.
{
//If the king is the same color as a piece.
if (Board.Squares[lKing[0], lKing[1]].Piece.Color == Board.Squares[movements[v][0], movements[v][1]].Piece.Color)
{
//Returns moves that can protect the king from check mate.
placeHold2 = Board.Squares[movements[x][0], movements[x][1]].Piece.RestrictMovement(Board.Squares, movements[x][0], movements[x][1]);
}
for (int y = 0; y < placeHold2.Count; ++y)
{
for (int z = 0; z < placeHold.Count; ++z)
{
if (placeHold[z] == placeHold2[y])
{
inCheck = false;
}
}
}
}
}
if (movements[x][0] == dKing[0] && movements[x][1] == dKing[1])//If an enemy movement is the same as the dark king's location.
{
//Returns moves leading to the king's location.
placeHold = Board.Squares[Pieces[x][0], Pieces[x][1]].Piece.Search(Board.Squares, Pieces[x][0], Pieces[x][1], dKing[0], dKing[1]);
for (int v = 0; v < movements.Count; ++v)//Loops through all possible legal moves.
{
//If the king is the same color as a piece.
if (Board.Squares[dKing[0], dKing[1]].Piece.Color == Board.Squares[movements[v][0], movements[v][1]].Piece.Color)
{
//Returns moves that can protect the king from check mate.
placeHold2 = Board.Squares[movements[x][0], movements[x][1]].Piece.RestrictMovement(Board.Squares, movements[x][0], movements[x][1]);
}
for (int y = 0; y < placeHold2.Count; ++y)
{
for (int z = 0; z < placeHold.Count; ++z)
{
if (placeHold[z][0] == placeHold2[y][0] && placeHold[z][1] == placeHold2[y][1])
{
inCheck = false;
}
}
}
}
}
}
return inCheck;
}
/// <summary>
/// Checks if the selected piece's desired location willl take the king out of check.
/// </summary>
/// <param name="endX"></param>
/// <param name="endY"></param>
/// <returns>
/// True: If the desired location for the piece will take the king out of chess.
/// False: If the desired location for the piece will not take the king out of chess.
/// </returns>
public bool WillSaveTheKing(int startX, int startY, int endX, int endY)
{
List<int[]> enemyMovement;
List<int[]> ally = new List<int[]>();
List<int[]> movement = new List<int[]>();
Location l = new Location();
bool temp = true;
enemyMovement = StoreEnemyMovements();
bool isValid = false;
for (int x = 0; x < 8; ++x)
{
for (int y = 0; y < 8; ++y)
{
if ((int)Board.Squares[x, y].Piece.Color == Turn)
{
if (Board.Squares[x, y].Piece.GetType() != typeof(King))
{
for (int w = 0; w < enemyMovement.Count; ++w)
{
l.X = enemyMovement[w][0];
l.Y = enemyMovement[w][1];
if (endX == enemyMovement[w][0] && endY == enemyMovement[w][1])
{
isValid = true;
}
}
}
else
{
if (Board.Squares[startX, startY].Piece.GetType() == typeof(King))
{
bool valid = WillKingCheck(startX, startY, endX, endY);
if (valid == true)
{
for (int w = 0; w < enemyMovement.Count; ++w)
{
if (endX == enemyMovement[w][0] && endY == enemyMovement[w][1])
{
if (Board.Squares[enemyMovement[w][0], enemyMovement[w][1]].Piece.GetType() == typeof(Space))
{
temp = false;
}
else
{
isValid = true;
}
}
else if (endX != enemyMovement[w][0] || endY != enemyMovement[w][1])
{
isValid = true;
}
}
}
else
{
temp = false;
}
}
}
}
}
}
if (temp == false)
{
isValid = temp;
}
return isValid;
}
/// <summary>
/// Loops through, getting enemy movements, and storing them.
/// Looks for the king of the current player and stores his location.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns>Returns a list of movements thats are directed to the king.</returns>
public List<int[]> StoreEnemyMovements()
{
List<int[]> enemyMovement = new List<int[]>();//A storage for all possible legal move for enemy pieces.
List<int[]> allyMovement = new List<int[]>();//A storage for all possible legal move for ally pieces.
List<int[]> enemy = new List<int[]>();//A placeholder for enemy movements
List<int[]> Pieces = new List<int[]>();//a list
int[] king = new int[2];//King's location.
for (int x = 0; x < 8; ++x)
{
for (int y = 0; y < 8; y++)
{
if ((int)Board.Squares[x, y].Piece.Color != Turn && Board.Squares[x, y].Piece.Color != ChessColor.NONE)
{
if (Board.Squares[x, y].Piece.GetType() != typeof(Pawn))
{
Location pieceLoc = new Location();//Gets the current piece's location, which will eventually loop through all pieces.
pieceLoc.X = x;
pieceLoc.Y = y;
enemy = Board.Squares[x, y].Piece.RestrictMovement(Board.Squares, pieceLoc.X, pieceLoc.Y);//Gets all possible legal moves for current piece.
for (int j = 0; j < enemy.Count; ++j)
{
enemyMovement.Add(enemy[j]);//Adds all possible legal enemy movements from the current piece being looped through.
Pieces.Add(new int[] { pieceLoc.X, pieceLoc.Y });//Contains all piece's that have legal moves.
}
}
else
{
Location pieceLoc = new Location();//Gets the current piece's location, which will eventually loop through all pieces.
pieceLoc.X = x;
pieceLoc.Y = y;
enemy = ((Pawn)Board.Squares[x, y].Piece).Attacks(Board.Squares, pieceLoc.X, pieceLoc.Y);//Gets all possible legal moves for current piece.
for (int j = 0; j < enemy.Count; ++j)
{
enemyMovement.Add(enemy[j]);//Adds all possible legal enemy movements from the current piece being looped through.
Pieces.Add(new int[] { pieceLoc.X, pieceLoc.Y });//Contains all piece's that have legal moves.
}
}
}
else if ((int)Board.Squares[x, y].Piece.Color == Turn)
{
if (Board.Squares[x, y].Piece.GetType() == typeof(King))
{
king = new int[] { x, y };//Stores the king's location.
}
}
}
}
for (int x = 0; x < enemyMovement.Count; ++x)//Loops through all possible legal moves.
{
if (enemyMovement[x][0] == king[0] && enemyMovement[x][1] == king[1])//If an enemy movement is the same as the king's location.
{
//Returns moves leading to the king's location.
enemy = Board.Squares[Pieces[x][0], Pieces[x][1]].Piece.Search(Board.Squares, Pieces[x][0], Pieces[x][1], king[0], king[1]);
enemy.Add(new int[] { Pieces[x][0], Pieces[x][1] });
break;
}
}
return enemy;
}
/// <summary>
/// Gets all possible enemy moves.
/// </summary>
/// <returns></returns>
public List<int[]> StoreAllEnemyMovements()
{
List<int[]> enemyMovement = new List<int[]>();//A storage for all possible legal move for enemy pieces.
List<int[]> enemy = new List<int[]>();//A placeholder for enemy movements
List<int[]> Pieces = new List<int[]>();//a list
for (int x = 0; x < 8; ++x)
{
for (int y = 0; y < 8; y++)
{
if ((int)Board.Squares[x, y].Piece.Color != Turn && Board.Squares[x, y].Piece.Color != ChessColor.NONE)
{
if (Board.Squares[x, y].Piece.GetType() != typeof(Pawn))
{
Location pieceLoc = new Location();//Gets the current piece's location, which will eventually loop through all pieces.
pieceLoc.X = x;
pieceLoc.Y = y;
enemy = Board.Squares[x, y].Piece.RestrictMovement(Board.Squares, pieceLoc.X, pieceLoc.Y);//Gets all possible legal moves for current piece.
for (int j = 0; j < enemy.Count; ++j)
{
enemyMovement.Add(enemy[j]);//Adds all possible legal enemy movements from the current piece being looped through.
}
}
else
{
Location pieceLoc = new Location();//Gets the current piece's location, which will eventually loop through all pieces.
pieceLoc.X = x;
pieceLoc.Y = y;
enemy = ((Pawn)Board.Squares[x, y].Piece).Attacks(Board.Squares, pieceLoc.X, pieceLoc.Y);//Gets all possible legal moves for current piece.
for (int j = 0; j < enemy.Count; ++j)
{
enemyMovement.Add(enemy[j]);//Adds all possible legal enemy movements from the current piece being looped through.
}
}
}
}
}
return enemyMovement;
}
public void ResetGame()
{
_board = new ChessBoard();
g.Children.Clear();
inCheck = false;
CreateBoard(g, l, l2);
_startLoc = new Location();
_endLoc = new Location();
ChangeTurn();
_startSquare = null;
_selectedSquare = null;
}
/// <summary>
/// If the piece contains a movement that can save the king, then the piece if selected,
/// will have it's movements that will save the king highlighted.
/// </summary>
/// <param name="j"></param>
/// <param name="k"></param>
public void CanSaveKing(int j, int k)
{
List<int[]> enemyMovement;
List<int[]> allyMovement = new List<int[]>();
List<int[]> kingMovement = new List<int[]>();
List<int[]> ally = new List<int[]>();
List<int[]> movement = new List<int[]>();
Location l = new Location();
Location l2 = new Location();
enemyMovement = StoreEnemyMovements();
for (int x = 0; x < 8; ++x)
{
for (int y = 0; y < 8; ++y)
{
if ((int)Board.Squares[x, y].Piece.Color == Turn)
{
if (Board.Squares[x, y].Piece.GetType() != typeof(King))
{
List<int[]> temp = Board.Squares[x, y].Piece.RestrictMovement(Board.Squares, x, y);
for (int z = 0; z < temp.Count; ++z)
{
for (int w = 0; w < enemyMovement.Count; ++w)
{
if (temp[z][0] == enemyMovement[w][0] && temp[z][1] == enemyMovement[w][1])
{
ally.Add(new int[] { x, y });
allyMovement.Add(temp[z]);
}
}
}
}
else
{
List<int[]> kingMoves = Board.Squares[x, y].Piece.RestrictMovement(Board.Squares, x, y);
for (int z = 0; z < kingMoves.Count; ++z)
{
for (int w = 0; w < enemyMovement.Count; ++w)
{
//if (kingMoves[z][0] == enemyMovement[w][0] && kingMoves[z][1] == enemyMovement[w][1])
//{
// if (Board.Squares[enemyMovement[w][0], enemyMovement[w][1]].Piece.GetType() != typeof(Space))
// {
// ((Square)g.Children[(kingMoves[z][0] * 8) + kingMoves[z][1]]).Background = Brushes.LightYellow;
// }
//}
/*else*/ if (kingMoves[z][0] != enemyMovement[w][0] || kingMoves[z][1] != enemyMovement[w][1])
{
kingMovement.Add(kingMoves[z]);
}
}
}
}
}
}
}
a = ally;
if (Board.Squares[j, k].Piece.GetType() != typeof(King))
{
movement = Board.Squares[j, k].Piece.RestrictMovement(Board.Squares, j, k);
for (int x = 0; x < allyMovement.Count; ++x)
{
for (int y = 0; y < movement.Count; ++y)
{
l.X = allyMovement[x][0];
l.Y = allyMovement[x][1];
l2.X = movement[y][0];
l2.Y = movement[y][1];
if (allyMovement[x][0] == movement[y][0] && allyMovement[x][1] == movement[y][1])
{
((Square)g.Children[(allyMovement[x][0] * 8) + allyMovement[x][1]]).Background = Brushes.Plum;
}
}
}
}
else
{
PrintKingMoves(j, k);
}
}