public static void TileToIndexes(ChessboardTile tile, out int row, out int column)
{
if (tile == ChessboardTile.None)
{
throw new ArgumentException("The tile cannot be None");
}
row = BoardSize - ((int)tile / BoardSize) - 1;
column = (int)tile % BoardSize;
}
public IMatchState Update(GameTime gameTime)
{
//Check for camera movement and exit
if (m_owner.InputManager.IsKeyDown(Keys.Escape))
{
m_owner.ExitMatch();
}
if (m_owner.InputManager.IsKeyHoldDown(Keys.Left))
{
m_owner.GraphicsManager.CameraLeft(gameTime);
}
if (m_owner.InputManager.IsKeyHoldDown(Keys.Right))
{
m_owner.GraphicsManager.CameraRight(gameTime);
}
if (m_owner.InputManager.IsKeyHoldDown(Keys.Up))
{
m_owner.GraphicsManager.CameraUp(gameTime);
}
if (m_owner.InputManager.IsKeyHoldDown(Keys.Down))
{
m_owner.GraphicsManager.CameraDown(gameTime);
}
//Check for a click
if (m_owner.InputManager.IsLeftMouseButtonDown())
{
Vector2 mousePosition = m_owner.InputManager.GetMousePosition();
if (m_owner.GraphicsManager.IsMouseIn(mousePosition))
{
ChessboardTile pickedTile = ColorChessboardPicker.GetTile(mousePosition,
m_owner.GraphicsManager,
m_owner.ChessboardModel,
m_owner.ChessboardPickingEffect);
if (pickedTile == ChessboardTile.None)
{
return(this);
}
if (m_owner.Match.TrySelect(ChessPlayer.White, pickedTile))
{
m_owner.AudioManager.PlaySound(SoundKey.PieceUp);
return(WhitePieceMoving.GetMatchState(m_owner));
}
}
}
//If not returned yet return yourself
return(this);
}
static ColorChessboardPicker()
{
//Initialize the map
for (int i = 0; i < 8; ++i)
{
for (int j = 0; j < 8; ++j)
{
Color color = new Color((byte)(i * 32), (byte)(j * 32), 128);
ChessboardTile tile = (ChessboardTile)((i * 8) + j);
s_colorMap.Add(color);
s_tileMap.Add(tile);
}
}
}
public ChessPiece this[ChessboardTile tile]
{
get
{
int row, column;
ChessboardTileHelper.TileToIndexes(tile, out row, out column);
return(this[row, column]);
}
set
{
int row, column;
ChessboardTileHelper.TileToIndexes(tile, out row, out column);
this[row, column] = value;
}
}
public bool TrySelect(ChessPlayer player, ChessboardTile tile)
{
int row, column;
ChessboardTileHelper.TileToIndexes(tile, out row, out column);
if (m_board[row, column] != null && m_board[row, column].Color == player)
{
m_board[row, column].Selected = true;
m_selectedRow = row;
m_selectedColumn = column;
return(true);
}
return(false);
}
public bool IsUndo(ChessboardTile tile)
{
int row, column;
ChessboardTileHelper.TileToIndexes(tile, out row, out column);
if (row == m_selectedRow && column == m_selectedColumn)
{
m_board[m_selectedRow, m_selectedColumn].Selected = false;
m_selectedRow = -1;
m_selectedColumn = -1;
return(true);
}
return(false);
}
public static ChessboardTile GetTile(Vector2 mousePosition, IGraphicsManager graphicsManager,
Model chessboardModel, Effect chessboardPickingEffect)
{
graphicsManager.GraphicsDevice.Clear(s_neutralColor);
//Get the needed stuff
Matrix world = Matrix.Identity;
//Draw the screen and retrive the map
graphicsManager.DrawModel(chessboardModel, ref world, chessboardPickingEffect);
Texture2D pickingTexture = graphicsManager.GetScreenContents();
Color[] pickingMap = new Color[pickingTexture.Width * pickingTexture.Height];
pickingTexture.GetData(pickingMap);
//Get the color and a tile
Color selectedColor = pickingMap[(int)(mousePosition.Y * pickingTexture.Width + mousePosition.X)];
ChessboardTile tile = GetTileForColor(selectedColor);
//Return the result
return(tile);
}
public IMatchState Update(GameTime gameTime)
{
//Check for camera movement and exit
if (m_owner.InputManager.IsKeyDown(Keys.Escape))
{
m_owner.ExitMatch();
}
if (m_owner.InputManager.IsKeyHoldDown(Keys.Left))
{
m_owner.GraphicsManager.CameraLeft(gameTime);
}
if (m_owner.InputManager.IsKeyHoldDown(Keys.Right))
{
m_owner.GraphicsManager.CameraRight(gameTime);
}
if (m_owner.InputManager.IsKeyHoldDown(Keys.Up))
{
m_owner.GraphicsManager.CameraUp(gameTime);
}
if (m_owner.InputManager.IsKeyHoldDown(Keys.Down))
{
m_owner.GraphicsManager.CameraDown(gameTime);
}
//Check for a click
if (m_owner.InputManager.IsLeftMouseButtonDown())
{
Vector2 mousePosition = m_owner.InputManager.GetMousePosition();
if (m_owner.GraphicsManager.IsMouseIn(mousePosition))
{
ChessboardTile pickedTile = ColorChessboardPicker.GetTile(mousePosition,
m_owner.GraphicsManager,
m_owner.ChessboardModel,
m_owner.ChessboardPickingEffect);
if (pickedTile == ChessboardTile.None)
{
return(this);
}
if (m_owner.Match.IsUndo(pickedTile))
{
m_owner.AudioManager.PlaySound(SoundKey.PieceDown);
return(BlackPiecePicking.GetMatchState(m_owner));
}
if (m_owner.Match.TryMove(ChessPlayer.Black, pickedTile))
{
m_owner.AudioManager.PlaySound(SoundKey.PieceDown);
ChessPlayer?winningPlayer = m_owner.Match.WinningPlayer;
if (winningPlayer != null)
{
if (winningPlayer == ChessPlayer.White)
{
return(WhiteWon.GetMatchState(m_owner));
}
if (winningPlayer == ChessPlayer.Black)
{
return(BlackWon.GetMatchState(m_owner));
}
}
return(BlackToWhiteTransfer.GetMatchState(m_owner));
}
m_owner.AudioManager.PlaySound(SoundKey.Error);
}
}
//If not returned yet return yourself
return(this);
}
public bool TryMove(ChessPlayer player, ChessboardTile tile)
{
int row, column;
ChessboardTileHelper.TileToIndexes(tile, out row, out column);
//Normal move
if (m_board[m_selectedRow, m_selectedColumn].CanMove(row, column))
{
//Pick up the piece
ChessPiece movingPiece = m_board[m_selectedRow, m_selectedColumn];
m_board[m_selectedRow, m_selectedColumn] = null;
m_selectedRow = -1;
m_selectedColumn = -1;
//Update the piece
movingPiece.Selected = false;
movingPiece.FirstMove = false;
//Check for winning/losing
if (row == m_whiteKing.CurrentRow && column == m_whiteKing.CurrentColumn)
{
m_winningPlayer = ChessPlayer.Black;
}
if (row == m_blackKing.CurrentRow && column == m_blackKing.CurrentColumn)
{
m_winningPlayer = ChessPlayer.White;
}
//Check for rochade (white, kingside)
if (movingPiece == m_whiteKing && row == 0 && column == 6)
{
WhiteRook rookSpot = m_board[0, 7] as WhiteRook;
if (rookSpot != null && rookSpot.FirstMove)
{
//We can do the rochade
m_board[0, 7] = movingPiece;
m_board[0, 6] = rookSpot;
rookSpot.FirstMove = false;
}
}
//Check for rochade (black, queenside)
if (movingPiece == m_blackKing && row == 7 && column == 1)
{
BlackRook rookSpot = m_board[7, 0] as BlackRook;
if (rookSpot != null && rookSpot.FirstMove)
{
//We can do the rochade
m_board[7, 0] = movingPiece;
m_board[7, 1] = rookSpot;
rookSpot.FirstMove = false;
}
}
//Check for rochade (black, kingside)
if (movingPiece == m_blackKing && row == 7 && column == 6)
{
BlackRook rookSpot = m_board[7, 7] as BlackRook;
if (rookSpot != null && rookSpot.FirstMove)
{
//We can do the rochade
m_board[7, 7] = movingPiece;
m_board[7, 6] = rookSpot;
rookSpot.FirstMove = false;
}
}
//Put down the piece
m_board[row, column] = movingPiece;
//Clear selection
return(true);
}
//Rochade (white, queenside)
if (m_board[m_selectedRow, m_selectedColumn] is WhiteKing &&
m_whiteKing.FirstMove &&
row == 0 &&
column == 1 &&
m_board[0, 1] == null &&
m_board[0, 2] == null &&
m_board[0, 3] == null)
{
WhiteRook rookSpot = m_board[0, 0] as WhiteRook;
if (rookSpot != null && rookSpot.FirstMove)
{
//Pickup the king
m_board[m_selectedRow, m_selectedColumn] = null;
//Deselect him
m_selectedRow = -1;
m_selectedColumn = -1;
m_whiteKing.Selected = false;
//Move
m_board[0, 1] = m_whiteKing;
m_board[0, 2] = rookSpot;
//Mark first moves
m_whiteKing.FirstMove = false;
rookSpot.FirstMove = false;
//Teel the move was a success
return(true);
}
}
//Rochade (white, kingside)
if (m_board[m_selectedRow, m_selectedColumn] is WhiteKing &&
m_whiteKing.FirstMove &&
row == 0 &&
column == 6 &&
m_board[0, 5] == null &&
m_board[0, 6] == null)
{
WhiteRook rookSpot = m_board[0, 7] as WhiteRook;
if (rookSpot != null && rookSpot.FirstMove)
{
//Pickup the king
m_board[m_selectedRow, m_selectedColumn] = null;
//Deselect him
m_selectedRow = -1;
m_selectedColumn = -1;
m_whiteKing.Selected = false;
//Move
m_board[0, 6] = m_whiteKing;
m_board[0, 5] = rookSpot;
//Mark first moves
m_whiteKing.FirstMove = false;
rookSpot.FirstMove = false;
//Teel the move was a success
return(true);
}
}
//Rochade (black, queenside)
if (m_board[m_selectedRow, m_selectedColumn] is BlackKing &&
m_blackKing.FirstMove &&
row == 7 &&
column == 1 &&
m_board[7, 1] == null &&
m_board[7, 2] == null &&
m_board[7, 3] == null)
{
BlackRook rookSpot = m_board[7, 0] as BlackRook;
if (rookSpot != null && rookSpot.FirstMove)
{
//Pickup the king
m_board[m_selectedRow, m_selectedColumn] = null;
//Deselect him
m_selectedRow = -1;
m_selectedColumn = -1;
m_blackKing.Selected = false;
//Move
m_board[7, 1] = m_blackKing;
m_board[7, 2] = rookSpot;
//Mark first moves
m_blackKing.FirstMove = false;
rookSpot.FirstMove = false;
//Teel the move was a success
return(true);
}
}
//Rochade (black, kingside)
if (m_board[m_selectedRow, m_selectedColumn] is BlackKing &&
m_blackKing.FirstMove &&
row == 7 &&
column == 6 &&
m_board[7, 5] == null &&
m_board[7, 6] == null)
{
BlackRook rookSpot = m_board[7, 7] as BlackRook;
if (rookSpot != null && rookSpot.FirstMove)
{
//Pickup the king
m_board[m_selectedRow, m_selectedColumn] = null;
//Deselect him
m_selectedRow = -1;
m_selectedColumn = -1;
m_blackKing.Selected = false;
//Move
m_board[7, 6] = m_blackKing;
m_board[7, 5] = rookSpot;
//Mark first moves
m_blackKing.FirstMove = false;
rookSpot.FirstMove = false;
//Teel the move was a success
return(true);
}
}
return(false);
}
