/// <summary>
/// Play the computer move found by the search.
/// </summary>
/// <param name="bFlash"> true to flash moving position</param>
/// <param name="eMessageMode"> Which message to show</param>
/// <param name="move"> Best move</param>
/// <param name="iPermCount"> Permutation count</param>
/// <param name="iDepth"> Depth of the search</param>
/// <param name="iCacheHit"> Number of moves found in the translation table cache</param>
/// <param name="stat"> Playing stat. Can be null</param>
/// <returns>
/// true if end of game, false if not
/// </returns>
private bool PlayComputerMove(bool bFlash, MessageModeE eMessageMode, ChessBoard.MovePosS move, int iPermCount, int iDepth, int iCacheHit, ComputerPlayingStat stat) {
bool bRetVal;
ChessBoard.MoveResultE eResult;
ChessBoard.PlayerColorE eColorToPlay;
eColorToPlay = m_chessCtl.NextMoveColor;
eResult = m_chessCtl.DoMove(move,
bFlash,
iPermCount,
iDepth,
iCacheHit);
if (stat != null) {
stat.m_eResult = eResult;
}
bRetVal = DisplayMessage(eResult, eMessageMode);
return(bRetVal);
}
/// <summary>
/// Display a message related to the MoveStateE
/// </summary>
/// <param name="eMoveResult"> Move result</param>
/// <param name="eMessageMode"> Message mode</param>
/// <returns>
/// true if it's the end of the game. false if not
/// </returns>
private bool DisplayMessage(ChessBoard.MoveResultE eMoveResult, MessageModeE eMessageMode) {
bool bRetVal;
string strOpponent;
if (m_ePlayingMode == PlayingModeE.PlayerAgainstComputer) {
if (m_chessCtl.ChessBoard.NextMoveColor == m_eComputerPlayingColor) {
strOpponent = "Computer is ";
} else {
strOpponent = "You are ";
}
} else {
strOpponent = (m_chessCtl.ChessBoard.NextMoveColor == ChessBoard.PlayerColorE.White) ? "White player is " : "Black player is ";
}
switch(eMoveResult) {
case ChessBoard.MoveResultE.NoRepeat:
bRetVal = false;
break;
case ChessBoard.MoveResultE.TieNoMove:
if (eMessageMode != MessageModeE.Silent) {
MessageBox.Show("Draw. " + strOpponent + "unable to move.");
}
bRetVal = true;
break;
case ChessBoard.MoveResultE.TieNoMatePossible:
if (eMessageMode != MessageModeE.Silent) {
MessageBox.Show("Draw. Not enough pieces to make a checkmate.");
}
bRetVal = true;
break;
case ChessBoard.MoveResultE.ThreeFoldRepeat:
if (eMessageMode != MessageModeE.Silent) {
MessageBox.Show("Draw. 3 times the same board.");
}
bRetVal = true;
break;
case ChessBoard.MoveResultE.FiftyRuleRepeat:
if (eMessageMode != MessageModeE.Silent) {
MessageBox.Show("Draw. 50 moves without moving a pawn or eating a piece.");
}
bRetVal = true;
break;
case ChessBoard.MoveResultE.Check:
if (eMessageMode == MessageModeE.Verbose) {
MessageBox.Show(strOpponent + "in check.");
}
bRetVal = false;
break;
case ChessBoard.MoveResultE.Mate:
if (eMessageMode != MessageModeE.Silent) {
MessageBox.Show(strOpponent + "checkmate.");
}
bRetVal = true;
break;
default:
bRetVal = false;
break;
}
return(bRetVal);
}