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/***************************************************************************
* Brutal Chess
* http://brutalchess.sf.net
*
* File : faileplayer.cpp
* Authors : Mike Cook, Joe Flint, Neil Pankey
**************************************************************************/
#ifndef WIN32
#include "board.h"
#include "chessgamestate.h"
#include "chessplayer.h"
#include <cassert>
#include <sstream>
#include <string>
#include <unistd.h>
using namespace std;
FailePlayer::FailePlayer()
{
m_trustworthy = true;
}
FailePlayer::~FailePlayer()
{
write(m_to[1], "exit\n", 5);
}
void FailePlayer::newGame()
{
runChessEngine();
}
void FailePlayer::loadGame(const ChessGameState& cgs)
{
}
void FailePlayer::startGame()
{
if(m_is_white)
write(m_to[1], "go\n", 3);
}
// Set up gnuchess
void FailePlayer::runChessEngine()
{
pipe( m_to );
pipe( m_from );
if (fork() == 0) {
// Child Process
nice( 20 );
dup2( m_to[0], 0 );
dup2( m_from[1], 1 );
close( m_to[0] );
close( m_to[1] );
close( m_from[0] );
execvp( "./faile", NULL );
cerr << "Couldn't run faile" << endl;
}
write( m_to[1], "xboard\n", 7);
m_initialized = true;
}
// Get a move from GnuChess
void FailePlayer::think(const ChessGameState & cgs)
{
if (!m_initialized)
runChessEngine();
string output;
char c;
while ( output.substr(0, 5) != "move ") {
output = "";
while ( read( m_from[0], &c, 1 ) ) {
if ( c == '\n' )
break;
output += c;
}
cout << output << endl;
}
output = output.substr(5, 5);
cout << output << endl;
// Construct a BoardMove from the move string.
stringstream oss(output);
int rank;
oss >> c;
oss >> rank;
BoardPosition origin(c, rank);
oss >> c;
oss >> rank;
BoardPosition dest(c, rank);
// BoardMove move(origin, dest);
char promote;
oss >> promote;
Board b = cgs.getBoard();
BoardMove move(origin, dest, b.getPiece(origin));
printf("Pawn promotion: %d\n", promote);
cout << promote << endl;
m_move = move;
}
// Send your move to GnuChess
void FailePlayer::opponentMove(const BoardMove & move, const ChessGameState & cgs)
{
if (!m_initialized)
runChessEngine();
Board board = cgs.getBoard();
Piece * piece = board.getPiece(move.dest());
assert(piece);
string movestr = "";
movestr += move.origin().filec();
movestr += '0' + move.origin().rank();
movestr += move.dest().filec();
movestr += '0' + move.dest().rank();
movestr += '\n';
cout << movestr << endl;
write( m_to[1], movestr.c_str(), 5);
}
void FailePlayer::undoMove()
{
string undo = "undo\n";
write(m_to[1], undo.c_str(), 5);
}
#endif
// end of file xboardplayer.cpp
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