/// <summary>Returns a list of legal moves from all pieces this turn.</summary>
/// <param name="optionalJumping">Overrides the game's OptionalJumping parameter for the enumeration.</param>
/// <returns>A list of legal moves.</returns>
public CheckersMove[] EnumLegalMoves(bool optionalJumping)
{
if ((!isPlaying) && (winner == 0))
{
throw new InvalidOperationException("Operation requires game to be playing.");
}
Stack incompleteMoves = new Stack();
ArrayList moves = new ArrayList();
foreach (CheckersPiece piece in EnumMovablePieces(optionalJumping))
{
incompleteMoves.Push(BeginMove(piece));
}
while (incompleteMoves.Count > 0)
{
CheckersMove move = (CheckersMove)incompleteMoves.Pop();
foreach (Point location in move.EnumMoves(optionalJumping))
{
CheckersMove nextMove = move.Clone();
if (!nextMove.Move(location))
{
continue;
}
if (nextMove.CanMove)
{
incompleteMoves.Push(nextMove);
}
if (!nextMove.MustMove)
{
moves.Add(nextMove);
}
}
}
return((CheckersMove[])moves.ToArray(typeof(CheckersMove)));
}
/// <summary>Returns a list of movable pieces this turn.</summary>
/// <param name="optionalJumping">Overrides the game's OptionalJumping parameter for the enumeration.</param>
/// <returns>A list of pieces that can be moved this turn.</returns>
public CheckersPiece[] EnumMovablePieces(bool optionalJumping)
{
if ((!isPlaying) && (winner == 0))
{
throw new InvalidOperationException("Operation requires game to be playing.");
}
ArrayList movable = new ArrayList();
foreach (CheckersPiece piece in EnumPlayerPieces(turn))
{
CheckersMove move = new CheckersMove(this, piece, false);
if (move.EnumMoves(optionalJumping).Length != 0)
{
movable.Add(piece);
}
}
return((CheckersPiece[])movable.ToArray(typeof(CheckersPiece)));
}