/// <summary>
/// Tries to perfrom a move. Will send any diagnostic messages to user if failed.
/// Will perform the move if it's valid.
/// </summary>
/// <param name="err">This string will hold any error messages if the move fails</param>
/// <param name="piece">The piece being moved</param>
/// <param name="to">The world location of the move target</param>
/// <returns>True if the move is legal</returns>
public bool TryMove(ref string err, BaseChessPiece piece, Point2D to)
{
Point2D p2 = WorldToBoard(to);
if (piece == null)
{
err = "You must select a piece for your move";
return(false);
}
if (!piece.CanMoveTo(p2, ref err))
{
return(false); // Invalid move
}
if (piece.IsCastle(p2))
{
// This move is making a castle. All needed verification is made by the AllowCastle() function.
Rook rook = piece as Rook;
if (rook == null)
{
rook = this[p2] as Rook;
}
m_IsMoving = true;
rook.Castle();
return(true);
}
Move move = new Move(piece, p2);
ApplyMove(move);
// bool ok = !IsCheck( piece.Color ) || IsCheckMate( piece.EnemyColor );
bool ok = !IsCheck(piece.Color);
UndoMove(move);
if (ok)
{
m_IsMoving = true;
piece.MoveTo(move);
foreach (BaseChessPiece pass in m_Table.Values)
{
if (pass != piece)
{
pass.AllowEnPassantCapture = false; // Reset en passant allowance
}
}
}
else
{
err = "That move would put your king under check";
}
return(ok);
}
/// <summary>
/// Tries to perfrom a move. Will send any diagnostic messages to user if failed.
/// Will perform the move if it's valid.
/// </summary>
/// <param name="err">This string will hold any error messages if the move fails</param>
/// <param name="piece">The piece being moved</param>
/// <param name="to">The world location of the move target</param>
/// <returns>True if the move is legal</returns>
public bool TryMove( ref string err, BaseChessPiece piece, Point2D to )
{
Point2D p2 = WorldToBoard( to );
if ( piece == null )
{
err = "You must select a piece for your move";
return false;
}
if ( ! piece.CanMoveTo( p2, ref err ) )
{
return false; // Invalid move
}
if ( piece.IsCastle( p2 ) )
{
// This move is making a castle. All needed verification is made by the AllowCastle() function.
Rook rook = piece as Rook;
if ( rook == null )
rook = this[ p2 ] as Rook;
m_IsMoving = true;
rook.Castle();
return true;
}
Move move = new Move( piece, p2 );
ApplyMove( move );
// bool ok = !IsCheck( piece.Color ) || IsCheckMate( piece.EnemyColor );
bool ok = !IsCheck( piece.Color );
UndoMove( move );
if ( ok )
{
m_IsMoving = true;
piece.MoveTo( move );
foreach( BaseChessPiece pass in m_Table.Values )
{
if ( pass != piece )
pass.AllowEnPassantCapture = false; // Reset en passant allowance
}
}
else
{
err = "That move would put your king under check";
}
return ok;
}
