/// <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)
{
// TODO: Add your update logic here
if (boardInfo.WhoseMove == ChessPieceColor.Black && blackIsAI)
{
ChessEngine.EngineMove(boardInfo);
}
else
{
MouseState mouseState = Mouse.GetState();
if (mouseState.LeftButton == ButtonState.Pressed)
{
int xPos = (int)(mouseState.X / Constants.SquareSize);
int yPos = (int)(mouseState.Y / Constants.SquareSize);
if (xPos < Constants.NumberOfFiles && yPos < Constants.NumberOfRanks)
{
if (selectedIndex > boardInfo.pieces.Length)
{
byte index = (byte)(yPos * Constants.NumberOfFiles + xPos);
if (boardInfo.pieces[index] != null && boardInfo.pieces[index].PieceColor == boardInfo.WhoseMove)
{
selectedIndex = index;
boardInfo.pieces[index].isSelected = true;
}
}
else
{
byte index = (byte)(yPos * Constants.NumberOfFiles + xPos);
if (index != selectedIndex)
{
//SourceIndex has no piece
if (boardInfo.pieces[selectedIndex] == null)
{
return;
}
//Select new piece if same color
if (boardInfo.pieces[index] != null && boardInfo.pieces[index].PieceColor == boardInfo.WhoseMove)
{
boardInfo.pieces[selectedIndex].isSelected = false;
boardInfo.pieces[index].isSelected = true;
selectedIndex = index;
}
//Check if this is infact a valid move
if (!ChessEngine.IsValidMove(boardInfo, selectedIndex, index))
{
return;
}
ChessEngine.MovePiece(boardInfo, selectedIndex, index);
selectedIndex = 99;
}
else
{
boardInfo.pieces[selectedIndex].isSelected = false;
selectedIndex = 99;
}
}
}
else if (selectedIndex < boardInfo.pieces.Length)
{
boardInfo.pieces[selectedIndex].isSelected = false;
selectedIndex = 99;
}
}
}
base.Update(gameTime);
}
/// <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)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
{
this.Exit();
}
if (boardInfo.WhoseMove == ChessPieceColor.Black && blackIsAI)
{
ChessEngine.EngineMove(boardInfo);
}
else
{
TouchCollection touchCollection = TouchPanel.GetState();
foreach (TouchLocation tl in touchCollection)
{
if (tl.State == TouchLocationState.Released)
{
int xPos = (int)(tl.Position.X / Constants.SquareSize);
int yPos = (int)(tl.Position.Y / Constants.SquareSize);
if (xPos < Constants.NumberOfFiles && yPos < Constants.NumberOfRanks)
{
if (selectedIndex > boardInfo.pieces.Length)
{
byte index = (byte)(yPos * Constants.NumberOfFiles + xPos);
if (boardInfo.pieces[index] != null && boardInfo.pieces[index].PieceColor == boardInfo.WhoseMove)
{
selectedIndex = index;
boardInfo.pieces[index].isSelected = true;
break;
}
}
else
{
byte index = (byte)(yPos * Constants.NumberOfFiles + xPos);
if (index != selectedIndex)
{
//SourceIndex has no piece
if (boardInfo.pieces[selectedIndex] == null)
{
return;
}
//Select new piece if same color
if (boardInfo.pieces[index] != null && boardInfo.pieces[index].PieceColor == boardInfo.WhoseMove)
{
boardInfo.pieces[selectedIndex].isSelected = false;
boardInfo.pieces[index].isSelected = true;
selectedIndex = index;
}
//Check if this is infact a valid move
if (!ChessEngine.IsValidMove(boardInfo, selectedIndex, index))
{
return;
}
ChessEngine.MovePiece(boardInfo, selectedIndex, index);
selectedIndex = 99;
break;
}
else
{
boardInfo.pieces[selectedIndex].isSelected = false;
selectedIndex = 99;
}
}
}
else if (selectedIndex < boardInfo.pieces.Length)
{
boardInfo.pieces[selectedIndex].isSelected = false;
selectedIndex = 99;
}
}
}
}
base.Update(gameTime);
}
