int main ( int argc, char *argv[] )
{
gettextinfo ( &StartupTextInfo );
atexit ( exitcode );
extern bool sound_flag;
sound_flag = true;
printf (
"\n"
"MailChess v %s by Don Cross <*****@*****.**>, 1 March 1996.\n"
"http://www.intersrv.com/~dcross\n"
"\n",
MailChess_Version );
const char * const help =
"Use: MAILCHES mailfile\n"
"\n"
"This program helps two people play chess by e-mail. MailChess reads\n"
"and writes a text file which can be sent back and forth by email.\n"
"MailChess ignores e-mail headers and other extraneous text.\n"
"\n"
"If 'mailfile' exists, it is scanned for chess data and MailChess tries\n"
"to restore a game in progress so that the next move can be made.\n"
"\n"
"If 'mailfile' does not exist, MailChess assumes that you want to\n"
"start a new game, and that you will play White.\n"
"In this case, you will make your first move and MailChess will\n"
"create the file 'mailfile'.\n";
// "If the optional parameter 'listfile' is specified, MailChess will\n"
// "read the game encoded in 'mailfile' and create a human-readable\n"
// "listing of the game in 'listfile', then immediately exit.\n";
if ( argc != 2 && argc != 3 )
{
printf ( "%s", help );
return 1;
}
ChessBoard theBoard;
if ( argc == 3 )
{
if ( !ReadEmail ( 0, theBoard, argv[1] ) )
{
fprintf ( stderr, "No valid chess data in file '%s'\n", argv[1] );
return 1;
}
FILE *out = fopen ( argv[2], "wt" );
if ( !out )
{
fprintf ( stderr, "Cannot open file '%s' for write!\n", argv[2] );
return 1;
}
ListChessGame ( theBoard, out );
fclose ( out );
printf ( "Game listing written to file '%s'\n", argv[2] );
return 0;
}
ChessUI_dos_cga theUserInterface;
ChessPlayer *player = new HumanChessPlayer ( theUserInterface );
if ( !player )
{
fprintf ( stderr, "Error: Not enough memory to run this program!\n" );
return 1;
}
if ( !ReadEmail ( &theUserInterface, theBoard, argv[1] ) )
{
fprintf ( stderr, "The file '%s' does not exist.\n", argv[1] );
fprintf ( stderr, "Do you want to start a new game and create '%s'?\n", argv[1] );
fprintf ( stderr, "(y/n): " );
fflush ( stderr );
char answer [20];
answer[0] = '\0';
fgets ( answer, sizeof(answer), stdin );
if ( answer[0]!='y' && answer[0]!='Y' )
{
delete player;
return 1;
}
}
MoveList legalMoveList;
ChessSide winner = SIDE_NEITHER;
if ( theBoard.WhiteToMove() )
{
theBoard.GenWhiteMoves ( legalMoveList );
if ( legalMoveList.num == 0 )
{
winner = theBoard.WhiteInCheck() ? SIDE_BLACK : SIDE_NEITHER;
}
}
else
{
theBoard.GenBlackMoves ( legalMoveList );
if ( legalMoveList.num == 0 )
{
winner = theBoard.BlackInCheck() ? SIDE_WHITE : SIDE_NEITHER;
}
}
bool gameIsOver = (legalMoveList.num == 0);
if ( !gameIsOver )
{
// Look for definite draws...
if ( theBoard.IsDefiniteDraw(3) )
{
winner = SIDE_NEITHER;
gameIsOver = true;
}
}
// Now, 'gameIsOver' definitely has the correct value.
if ( gameIsOver )
{
// Display the ending state of the game and let the
// user gloat/sulk/sigh.
HelpUser_EndOfGame ( winner );
while ( (bioskey(0) & 0xff) != 0x1b );
sprintf ( ExitMessage,
"This game is over. MailChess has not changed '%s'.\n",
argv[1] );
}
else
{
// Read a single move from the user.
// Ask the user if he/she is sure afterward.
// If not, cancel the move and let them do another.
// Otherwise, commit to the move, write the updated game
// state to the text file, and exit.
HelpUser_MakeMove();
for(;;)
{
Move move;
INT32 timeSpent = 0;
bool moveWasRead = player->GetMove (
theBoard,
move,
timeSpent );
if ( moveWasRead )
{
theUserInterface.RecordMove ( theBoard, move, timeSpent );
UnmoveInfo unmove;
theBoard.MakeMove ( move, unmove );
theUserInterface.DrawBoard ( theBoard );
int promptY = theBoard.WhiteToMove() ? 25 : 24;
gotoxy ( 20, promptY );
printf ( "Are you sure this is the move you want to make? (Y/N) " );
unsigned key = 0;
while ( toupper(key) != 'Y' && toupper(key) != 'N' )
{
key = bioskey(0) & 0xff;
}
if ( key == 'Y' || key == 'y' )
{
WriteEmail ( theBoard, argv[1] );
sprintf ( ExitMessage, "Your move has been added to the file '%s'.\n", argv[1] );
break;
}
else
{
gotoxy ( 1, promptY );
printf ( " " );
theBoard.UnmakeMove ( move, unmove );
theUserInterface.DrawBoard ( theBoard );
}
}
else
{
sprintf ( ExitMessage, "The file '%s' has not been changed.\n", argv[1] );
break;
}
}
}
delete player;
return 0;
}
