private void PerformMoveCalculations(int depth)
{
Bitmap board = PieceFinderViewModel.GetInstance().FindPieces(this.GameBoard);
// Ensure kings are on the board and game state makes some degree of sense
if (!this.PassesSanityChecks())
{
return;
}
DateTime startTime = DateTime.Now;
string nextMove = string.Empty;
// Calculate best move
string newFen = this.GameBoard.GenerateFEN();
if (newFen != this.LastFen)
{
// Use the engine to calculate the next best move
nextMove = Cuckoo.simplyCalculateMove(newFen, depth);
// Inform view of updates
this.UpdateBoardCallback(board, nextMove, EngineViewModel.GetInstance().PlayingWhite);
this.LastFen = newFen;
}
TimeSpan elapsedTime = DateTime.Now - startTime;
}
protected override void OnUpdate()
{
if (EngineViewModel.GetInstance().FastMode)
{
this.PerformMoveCalculations(3);
}
else
{
this.PerformMoveCalculations(7);
}
}
public void UpdateSquare(int x, int y, GamePiece.PieceName pieceName, GamePiece.PieceColor pieceColor)
{
// Adjust coords since we're looking at it 'upside down'
if (!EngineViewModel.GetInstance().PlayingWhite)
{
y = (GameBoard.SquareCount - 1) - y;
x = (GameBoard.SquareCount - 1) - x;
}
Pieces[x, y].Name = pieceName;
Pieces[x, y].Color = pieceColor;
}
public void AutoSetup()
{
EngineViewModel.GetInstance().WhiteCanCastleKS = true;
EngineViewModel.GetInstance().WhiteCanCastleQS = true;
EngineViewModel.GetInstance().BlackCanCastleKS = true;
EngineViewModel.GetInstance().BlackCanCastleQS = true;
for (int column = 0; column < GameBoard.SquareCount; column++)
{
for (int row = 0; row < GameBoard.SquareCount; row++)
{
if (this.Pieces[row, column].Name == GamePiece.PieceName.None)
{
continue;
}
if (this.Pieces[row, column].Color == GamePiece.PieceColor.White)
{
if (EngineViewModel.GetInstance().PlayingWhite)
{
EngineViewModel.GetInstance().PlayingWhite = false;
EngineViewModel.GetInstance().WhiteToMove = false;
}
else
{
EngineViewModel.GetInstance().PlayingWhite = true;
EngineViewModel.GetInstance().WhiteToMove = true;
}
return;
}
else if (this.Pieces[row, column].Color == GamePiece.PieceColor.Black)
{
if (EngineViewModel.GetInstance().PlayingWhite)
{
EngineViewModel.GetInstance().PlayingWhite = true;
EngineViewModel.GetInstance().WhiteToMove = true;
}
else
{
EngineViewModel.GetInstance().PlayingWhite = false;
EngineViewModel.GetInstance().WhiteToMove = false;
}
return;
}
}
}
}
public override string ToString()
{
string boardString = string.Empty;
// Print regularly
if (EngineViewModel.GetInstance().WhiteToMove)
{
for (int Row = 0; Row < GameBoard.SquareCount; Row++)
{
for (int Column = 0; Column < GameBoard.SquareCount; Column++)
{
boardString += this.GetPieceText(Row, Column) + " ";
}
// New row
if (Row != GameBoard.SquareCount - 1)
{
boardString += "\n";
}
}
}
// Print board flipped
else
{
for (int Row = GameBoard.SquareCount - 1; Row >= 0; Row--)
{
for (int Column = GameBoard.SquareCount - 1; Column >= 0; Column--)
{
boardString += this.GetPieceText(Row, Column);
}
// New row
if (Row != 0)
{
boardString += "\n";
}
}
}
return(boardString);
}
private void CheckCastling()
{
// Out of position rooks:
if (this.Pieces[0, 0].Name != GamePiece.PieceName.Rook)
{
EngineViewModel.GetInstance().BlackCanCastleQS = false;
}
if (this.Pieces[7, 0].Name != GamePiece.PieceName.Rook)
{
EngineViewModel.GetInstance().BlackCanCastleKS = false;
}
if (this.Pieces[0, 7].Name != GamePiece.PieceName.Rook)
{
EngineViewModel.GetInstance().WhiteCanCastleQS = false;
}
if (this.Pieces[7, 7].Name != GamePiece.PieceName.Rook)
{
EngineViewModel.GetInstance().WhiteCanCastleKS = false;
}
// Out of position black king:
if (this.Pieces[4, 0].Name != GamePiece.PieceName.King)
{
EngineViewModel.GetInstance().BlackCanCastleKS = false;
EngineViewModel.GetInstance().BlackCanCastleQS = false;
}
// Out of position white king:
if (this.Pieces[4, 7].Name != GamePiece.PieceName.King)
{
EngineViewModel.GetInstance().WhiteCanCastleKS = false;
EngineViewModel.GetInstance().WhiteCanCastleQS = false;
}
}
/// <summary>
/// Starts useful services that run in the background.
/// </summary>
private void StartBackgroundServices()
{
EngineViewModel.GetInstance().BeginAnalysis();
}
public void SetPlayingWhite(bool playingWhite)
{
EngineViewModel.GetInstance().PlayingWhite = playingWhite;
}
private string GetPieceText(int row, int column)
{
// Place peice (or lack thereof)
switch (this.Pieces[column, row].Name)
{
case GamePiece.PieceName.None:
if ((row % 2 == 1 && column % 2 == 0 || row % 2 == 0 && column % 2 == 1) && EngineViewModel.GetInstance().PlayingWhite ||
(row % 2 == 0 && column % 2 == 0 || row % 2 == 1 && column % 2 == 1) && !EngineViewModel.GetInstance().PlayingWhite)
{
return("⬜"); // ⬛
}
else
{
return("⬜");
}
case GamePiece.PieceName.Pawn:
if ((this.Pieces[column, row].Color == GamePiece.PieceColor.Black && EngineViewModel.GetInstance().PlayingWhite) ||
(this.Pieces[column, row].Color == GamePiece.PieceColor.White && !EngineViewModel.GetInstance().PlayingWhite))
{
return("♟");
}
else
{
return("♙");
}
case GamePiece.PieceName.Knight:
if ((this.Pieces[column, row].Color == GamePiece.PieceColor.Black && EngineViewModel.GetInstance().PlayingWhite) ||
(this.Pieces[column, row].Color == GamePiece.PieceColor.White && !EngineViewModel.GetInstance().PlayingWhite))
{
return("♞");
}
else
{
return("♘");
}
case GamePiece.PieceName.Bishop:
if ((this.Pieces[column, row].Color == GamePiece.PieceColor.Black && EngineViewModel.GetInstance().PlayingWhite) ||
(this.Pieces[column, row].Color == GamePiece.PieceColor.White && !EngineViewModel.GetInstance().PlayingWhite))
{
return("♝");
}
else
{
return("♗");
}
case GamePiece.PieceName.Rook:
if ((this.Pieces[column, row].Color == GamePiece.PieceColor.Black && EngineViewModel.GetInstance().PlayingWhite) ||
(this.Pieces[column, row].Color == GamePiece.PieceColor.White && !EngineViewModel.GetInstance().PlayingWhite))
{
return("♜");
}
else
{
return("♖");
}
case GamePiece.PieceName.Queen:
if ((this.Pieces[column, row].Color == GamePiece.PieceColor.Black && EngineViewModel.GetInstance().PlayingWhite) ||
(this.Pieces[column, row].Color == GamePiece.PieceColor.White && !EngineViewModel.GetInstance().PlayingWhite))
{
return("♛");
}
else
{
return("♕");
}
case GamePiece.PieceName.King:
if ((this.Pieces[column, row].Color == GamePiece.PieceColor.Black && EngineViewModel.GetInstance().PlayingWhite) ||
(this.Pieces[column, row].Color == GamePiece.PieceColor.White && !EngineViewModel.GetInstance().PlayingWhite))
{
return("♚");
}
else
{
return("♔");
}
default:
throw new Exception("Unable to find text for provided piece");
}
}
public string GenerateFEN()
{
string fen = "";
string next = "";
int spaces = 0;
for (int y = 0; y < GameBoard.SquareCount; y++)
{
for (int x = 0; x < GameBoard.SquareCount; x++)
{
next = "";
if (this.Pieces[x, y].Name == GamePiece.PieceName.None)
{
spaces++;
}
// Write spaces if necessary
if ((this.Pieces[x, y].Name != GamePiece.PieceName.None || x == GameBoard.SquareCount - 1) && spaces > 0)
{
next += spaces.ToString();
spaces = 0;
}
switch (this.Pieces[x, y].Name)
{
case GamePiece.PieceName.Pawn:
next += "p";
break;
case GamePiece.PieceName.Knight:
next += "n";
break;
case GamePiece.PieceName.Bishop:
next += "b";
break;
case GamePiece.PieceName.Rook:
next += "r";
break;
case GamePiece.PieceName.Queen:
next += "q";
break;
case GamePiece.PieceName.King:
next += "k";
break;
case GamePiece.PieceName.None:
default:
break;
}
// White is upper case
if (this.Pieces[x, y].Color == GamePiece.PieceColor.White)
{
next = next.ToUpper();
}
fen += next;
}
fen += "/";
}
if (EngineViewModel.GetInstance().WhiteToMove)
{
fen += " w ";
}
else
{
fen += " b ";
}
if (EngineViewModel.GetInstance().WhiteCanCastleKS)
{
fen += "K";
}
if (EngineViewModel.GetInstance().WhiteCanCastleQS)
{
fen += "Q";
}
if (!EngineViewModel.GetInstance().WhiteCanCastleKS&& !EngineViewModel.GetInstance().WhiteCanCastleQS)
{
fen += "-";
}
if (EngineViewModel.GetInstance().BlackCanCastleKS)
{
fen += "k";
}
if (EngineViewModel.GetInstance().BlackCanCastleQS)
{
fen += "q";
}
if (!EngineViewModel.GetInstance().BlackCanCastleKS&& !EngineViewModel.GetInstance().BlackCanCastleQS)
{
fen += "-";
}
fen += " ";
// if (this.EnPassantAvilable)
fen += "-";
// TODO: Maybe parse this from the screen too, should be the move #s or something?
fen += " 0 25";
return(fen);
}