public static List<BoardCoord> AvailableMoves(Piece piece)
{
var moves = new List<BoardCoord>();
if (piece.Type == PieceType.Pawn && piece.Colour == PieceColour.White)
{
moves.Add(new BoardCoord() {XRank = piece.BoardTile.XRank, YRank = Helpers.DecrementYRank(piece.BoardTile.YRank,1)});
moves.Add(new BoardCoord() { XRank = piece.BoardTile.XRank, YRank = Helpers.DecrementYRank(piece.BoardTile.YRank,2)});
} else
if (piece.Type == PieceType.Pawn && piece.Colour == PieceColour.Black)
{
moves.Add(new BoardCoord() { XRank = piece.BoardTile.XRank, YRank = Helpers.IncrementYRank(piece.BoardTile.YRank, 1) });
moves.Add(new BoardCoord() { XRank = piece.BoardTile.XRank, YRank = Helpers.IncrementYRank(piece.BoardTile.YRank, 2) });
}
if (piece.Type == PieceType.Knight)
{
//up left
moves.Add(Helpers.MoveXY(piece.BoardTile.XRank, -1, piece.BoardTile.YRank, 2));
//UP AND LEFFT
moves.Add(Helpers.MoveXY(piece.BoardTile.XRank, -2, piece.BoardTile.YRank, 1));
//down left
moves.Add(Helpers.MoveXY(piece.BoardTile.XRank, -2, piece.BoardTile.YRank, -1));
//DOWN LEFT AGAIN
moves.Add(Helpers.MoveXY(piece.BoardTile.XRank, -1, piece.BoardTile.YRank, -2));
//up right
moves.Add(Helpers.MoveXY(piece.BoardTile.XRank, 1, piece.BoardTile.YRank, 2));
//UP AND RIGHT?lol
moves.Add(Helpers.MoveXY(piece.BoardTile.XRank, 2, piece.BoardTile.YRank, 1));
//down right
moves.Add(Helpers.MoveXY(piece.BoardTile.XRank, 1, piece.BoardTile.YRank, -2));
//DOWN RIGHT AGAIN
moves.Add(Helpers.MoveXY(piece.BoardTile.XRank, 2, piece.BoardTile.YRank, -1));
}
return moves;
}
public void setPiece(char p, int player)
{
if (p == 'p')
piece = new Pawn(player);
else if (p == 'r')
piece = new Rook(player);
else if (p == 'n')
piece = new Knight(player);
else if (p == 'b')
piece = new Bishop(player);
else if (p == 'q')
piece = new Queen(player);
else if (p == 'k')
piece = new King(player);
}
//Checks for move mouse click
private void CheckForMouseClick()
{
foreach (var piece in _board.Pieces)
{
bool pieceClicked = piece.CollisionRect.Contains(currentMouseState.X, currentMouseState.Y);
if (pieceClicked)
{
_currentGrid = new int[8, 8]
{
{0, 1, 0, 1, 0, 1, 0, 1},
{1, 0, 1, 0, 1, 0, 1, 0},
{0, 1, 0, 1, 0, 1, 0, 1},
{1, 0, 1, 0, 1, 0, 1, 0},
{0, 1, 0, 1, 0, 1, 0, 1},
{1, 0, 1, 0, 1, 0, 1, 0},
{0, 1, 0, 1, 0, 1, 0, 1},
{1, 0, 1, 0, 1, 0, 1, 0},
};
_currentGrid[piece.TilePosition.X, piece.TilePosition.Y] = 2;
PieceSelected = piece;
//Where can we move
AvailableMoves = Move.AvailableMoves(PieceSelected);
foreach (var move in AvailableMoves)
{
var tile = Helpers.BoardCoordToTile(move);
//colour
_currentGrid[tile.X, tile.Y] = 3;
}
_map.Generate(_currentGrid, 132);
}
}
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// The active state from the last frame is now old
lastMouseState = currentMouseState;
// Get the mouse state relevant for this frame
currentMouseState = Mouse.GetState();
// Recognize a single click of the left mouse button
if (lastMouseState.LeftButton == ButtonState.Released && currentMouseState.LeftButton == ButtonState.Pressed)
{
if (PieceSelected != null)
{
var tileReference = Helpers.PixelToTile(currentMouseState.X, currentMouseState.Y);
// helper.inbounds
if (tileReference.X >= 0 && tileReference.X <= 7 && tileReference.Y >= 0 && tileReference.Y <= 7)
{
if (_currentGrid[(int)tileReference.Y, (int)tileReference.X] == 3)
{
PieceSelected.Move(tileReference);
}
}
PieceSelected = null;
_currentGrid = new int[8, 8]
{
{0, 1, 0, 1, 0, 1, 0, 1},
{1, 0, 1, 0, 1, 0, 1, 0},
{0, 1, 0, 1, 0, 1, 0, 1},
{1, 0, 1, 0, 1, 0, 1, 0},
{0, 1, 0, 1, 0, 1, 0, 1},
{1, 0, 1, 0, 1, 0, 1, 0},
{0, 1, 0, 1, 0, 1, 0, 1},
{1, 0, 1, 0, 1, 0, 1, 0},
};
_map.Generate(_currentGrid, 132);
}
else
{
CheckForMouseClick();
}
}
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
// TODO: Add your update logic here
base.Update(gameTime);
}
//execute legal move
private void SetHeldPiece(int file, int rank)
{
if (heldPiece != null)
{
Console.WriteLine(DisplayNotation(file, rank));
undoDone = false;
currFile = file;
currRank = rank;
lastFile = heldPieceFile;
lastRank = heldPieceRank;
lastEatenPiece = square[file, rank].Piece;
square[file, rank].Piece = heldPiece;
if (heldPiece is King)
{
if (CastlingRights[currentPlayer - 1])
{
{
if (file == 2) //queenside
{
square[3, rank].Piece = square[0, rank].Piece;
square[0, rank].Piece = null;
}
if (file == 6) //kingside
{
square[5, rank].Piece = square[7, rank].Piece;
square[7, rank].Piece = null;
}
}
}
else CastlingRights[currentPlayer - 1] = false;
}
ClearHeldPiece();
PromotePawns();
square[file, rank].Piece.moved++;
if (lastEatenPiece is King)
{
Console.Beep(600, 500);
Console.WriteLine(GetCurrentPlayer() + " wins!");
gameOver = true;
}
SwapCurrentPlayer();
if (CheckState())
UndoLastMove();
}
else
{
Console.WriteLine("there is no held piece to set");
}
}
//highlight squares the heldPiece can move to
private void DrawPossibleMoves(int file, int rank, Piece p)
{
GL.Color4(Color.Green);
var possibleMoves = p.getPossibleMoves(this, Square[file, rank]);
foreach (Square i in possibleMoves)
{
GL.Begin(BeginMode.Quads);
DrawQuad(bottomLeft + new Vector2(scale.X * i.file, scale.Y * i.rank), scale/8);
GL.End();
}
}
//draw pieces
private void DrawPiece(int file, int rank, Piece piece)
{
if (piece.getPlayer() == 1)
GL.Color4(Color.White);
else
GL.Color4(Color.Black);
if (piece is Pawn)
Pawn.Draw(bottomLeft + new Vector2(scale.X * file, scale.Y * rank), scale);
else if (piece is Bishop)
Bishop.Draw(bottomLeft + new Vector2(scale.X * file, scale.Y * rank), scale);
else if (piece is King)
King.Draw(bottomLeft + new Vector2(scale.X * file, scale.Y * rank), scale);
else if (piece is Rook)
Rook.Draw(bottomLeft + new Vector2(scale.X * file, scale.Y * rank), scale);
else if (piece is Knight)
Knight.Draw(bottomLeft + new Vector2(scale.X * file, scale.Y * rank), scale);
else if (piece is Queen)
Queen.Draw(bottomLeft + new Vector2(scale.X * file, scale.Y * rank), scale);
}
//(re)set the board
public void SetBoard()
{
currentPlayer = WHITE;
ResetTimes();
heldPiece = null;
//reset player times
player1Time = DEFAULT_TIME_LIMIT;
player2Time = DEFAULT_TIME_LIMIT;
CastlingRights[0] = true;
CastlingRights[1] = true;
//set all squares to null
for (int i = 2; i < square.GetLength(0); i++)
for (int j = 2; j < 6; j++)
square[i,j].Piece = null;
for (int i = 0; i < 8; i++)
{
square[i, 1].Piece = new Pawn(WHITE);
square[i, 6].Piece = new Pawn(BLACK);
}
//white pieces
square[0, 0].Piece = new Rook(WHITE);
square[1, 0].Piece = new Knight(WHITE);
square[2, 0].Piece = new Bishop(WHITE);
square[3, 0].Piece = new Queen(WHITE);
square[4, 0].Piece = new King(WHITE);
square[5, 0].Piece = new Bishop(WHITE);
square[6, 0].Piece = new Knight(WHITE);
square[7, 0].Piece = new Rook(WHITE);
//black square
square[0, 7].Piece = new Rook(BLACK);
square[1, 7].Piece = new Knight(BLACK);
square[2, 7].Piece = new Bishop(BLACK);
square[3, 7].Piece = new Queen(BLACK);
square[4, 7].Piece = new King(BLACK);
square[5, 7].Piece = new Bishop(BLACK);
square[6, 7].Piece = new Knight(BLACK);
square[7, 7].Piece = new Rook(BLACK);
}
//pick up a piece to heldPiece from the board. doesn't need to be a bool, can be void?
public bool PickupPiece(int file, int rank)
{
if (!square[file, rank].isEmpty()) //&& owner = currentPlayer
{
Piece piece = square[file, rank].Piece;
if (piece.getPlayer() == currentPlayer)
{
heldPieceFile = file;
heldPieceRank = rank;
heldPiece = piece;
square[file, rank].Piece = null;
return true;
}
else
{
Console.Beep(600, 200);
return false;
}
}
else return false;
}
//set heldPiece back to null
public void ClearHeldPiece()
{
heldPiece = null;
}