home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Languguage OS 2
/
Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO
/
gnu
/
gnuchess.lha
/
uxdsp.c
< prev
next >
Wrap
C/C++ Source or Header
|
1990-06-09
|
31KB
|
1,411 lines
/* uxdsp.c - ALPHA interface for CHESS
Revision: 1990-05-09
Copyright (C) 1986, 1987, 1988, 1989, 1990 Free Software Foundation, Inc.
Copyright (c) 1988, 1989, 1990 John Stanback
This file is part of CHESS.
CHESS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY. No author or distributor accepts responsibility to anyone for
the consequences of using it or for whether it serves any particular
purpose or works at all, unless he says so in writing. Refer to the CHESS
General Public License for full details.
Everyone is granted permission to copy, modify and redistribute CHESS, but
only under the conditions described in the CHESS General Public License.
A copy of this license is supposed to have been given to you along with
CHESS so you can know your rights and responsibilities. It should be in a
file named COPYING. Among other things, the copyright notice and this
notice must be preserved on all copies.
*/
#include <ctype.h>
#include <signal.h>
#ifdef MSDOS
#include <dos.h>
#include <conio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#define ESC 0x1B
#define scanz scanf
#define printz printf
#define refresh() fflush(stdout)
int mycntl1, mycntl2;
static void param (short n);
#else
#include <sys/param.h>
#include <sys/types.h>
#include <sys/file.h>
#include <curses.h>
#define scanz fflush(stdout),scanw
#define printz printw
/* <stdlib.h> */
extern void *malloc (size_t);
extern void exit (int);
/* <string.h> */
extern char *strcat (char *, const char *);
extern int strcmp (const char *, const char *);
extern char *strcpy (char *, const char *);
/* <time.h> */
extern long int time (long int *);
#endif /* MSDOS */
#include "gnuchess.h"
#define pxx " PNBRQK"
#define qxx " pnbrqk"
#define rxx "12345678"
#define cxx "abcdefgh"
#define TAB (46)
#define VIR_C(s) ((flag.reverse) ? 7-column(s) : column(s))
#define VIR_R(s) ((flag.reverse) ? 7-row(s) : row(s))
static char mvstr[4][6];
static char* ColorStr[2] = {"White", "Black"};
static long evrate;
extern char *getenv (const char *);
void TerminateSearch (int), Die (int);
void
Initialize (void)
{
signal (SIGINT, Die);
#ifndef MSDOS
signal (SIGQUIT, Die);
initscr ();
crmode ();
#else
mycntl1 = mycntl2 = 0;
#endif /* MSDOS */
}
void
ExitChess (void)
{
ListGame ();
gotoXY (1, 24);
#ifndef MSDOS
nocrmode ();
endwin ();
#endif /* MSDOS */
exit (0);
}
void
Die (int Sig)
{
char s[80];
signal (SIGINT, SIG_IGN);
#ifdef MSDOS
Sig++; /* shut up the compiler */
#else
signal (SIGQUIT, SIG_IGN);
#endif /* MSDOS */
ShowMessage ("Abort? ");
scanz ("%s", s);
if (strcmp (s, "yes") == 0)
ExitChess ();
signal (SIGINT, Die);
#ifndef MSDOS
signal (SIGQUIT, Die);
#endif /* MSDOS */
}
void
TerminateSearch (int Sig)
{
signal (SIGINT, SIG_IGN);
#ifdef MSDOS
Sig++; /* shut up the compiler */
#else
signal (SIGQUIT, SIG_IGN);
#endif /* MSDOS */
flag.timeout = true;
flag.bothsides = false;
signal (SIGINT, Die);
#ifndef MSDOS
signal (SIGQUIT, Die);
#endif /* MSDOS */
}
void
algbr (short int f, short int t, short int flag)
/*
Generate move strings in different formats.
*/
{
int m3p;
if (f != t)
{
/* algebraic notation */
mvstr[0][0] = cxx[column (f)];
mvstr[0][1] = rxx[row (f)];
mvstr[0][2] = cxx[column (t)];
mvstr[0][3] = rxx[row (t)];
mvstr[0][4] = mvstr[3][0] = '\0';
if ((mvstr[1][0] = pxx[board[f]]) == 'P')
{
if (mvstr[0][0] == mvstr[0][2]) /* pawn did not eat */
{
mvstr[2][0] = mvstr[1][0] = mvstr[0][2]; /* to column */
mvstr[2][1] = mvstr[1][1] = mvstr[0][3]; /* to row */
m3p = 2;
}
else
/* pawn ate */
{
mvstr[2][0] = mvstr[1][0] = mvstr[0][0]; /* from column */
mvstr[2][1] = mvstr[1][1] = mvstr[0][2]; /* to column */
mvstr[2][2] = mvstr[0][3];
m3p = 3; /* to row */
}
mvstr[2][m3p] = mvstr[1][2] = '\0';
if (flag & promote)
{
mvstr[0][4] = mvstr[1][2] = mvstr[2][m3p] = qxx[flag & pmask];
mvstr[1][3] = mvstr[2][m3p + 1] = mvstr[0][5] = '\0';
}
}
else
/* not a pawn */
{
mvstr[2][0] = mvstr[1][0];
mvstr[2][1] = mvstr[0][1];
mvstr[2][2] = mvstr[1][1] = mvstr[0][2]; /* to column */
mvstr[2][3] = mvstr[1][2] = mvstr[0][3]; /* to row */
mvstr[2][4] = mvstr[1][3] = '\0';
strcpy (mvstr[3], mvstr[2]);
mvstr[3][1] = mvstr[0][0];
if (flag & cstlmask)
{
if (t > f)
{
strcpy (mvstr[1], "o-o");
strcpy (mvstr[2], "O-O");
}
else
{
strcpy (mvstr[1], "o-o-o");
strcpy (mvstr[2], "O-O-O");
}
}
}
}
else
mvstr[0][0] = mvstr[1][0] = mvstr[2][0] = mvstr[3][0] = '\0';
}
int
VerifyMove (char *s, short int iop, short unsigned int *mv)
/*
Compare the string 's' to the list of legal moves available for the
opponent. If a match is found, make the move on the board.
*/
{
static short pnt, tempb, tempc, tempsf, tempst, cnt;
static struct leaf xnode;
struct leaf *node;
*mv = 0;
if (iop == 2)
{
UnmakeMove (opponent, &xnode, &tempb, &tempc, &tempsf, &tempst);
return (false);
}
cnt = 0;
MoveList (opponent, 2);
pnt = TrPnt[2];
while (pnt < TrPnt[3])
{
node = &Tree[pnt++];
algbr (node->f, node->t, (short) node->flags);
if (strcmp (s, mvstr[0]) == 0 || strcmp (s, mvstr[1]) == 0 ||
strcmp (s, mvstr[2]) == 0 || strcmp (s, mvstr[3]) == 0)
{
cnt++;
xnode = *node;
}
}
if (cnt == 1)
{
MakeMove (opponent, &xnode, &tempb, &tempc, &tempsf, &tempst, &INCscore);
if (SqAtakd (PieceList[opponent][0], computer))
{
UnmakeMove (opponent, &xnode, &tempb, &tempc, &tempsf, &tempst);
ShowMessage ("Illegal Move!!");
return (false);
}
else
{
if (iop == 1)
return (true);
UpdateDisplay (xnode.f, xnode.t, 0, (short) xnode.flags);
if ((board[xnode.t] == pawn)
|| (xnode.flags & capture)
|| (xnode.flags & cstlmask))
{
Game50 = GameCnt;
ZeroRPT ();
}
GameList[GameCnt].depth = GameList[GameCnt].score = 0;
GameList[GameCnt].nodes = 0;
ElapsedTime (1);
GameList[GameCnt].time = (short) et;
TimeControl.clock[opponent] -= et;
--TimeControl.moves[opponent];
*mv = (xnode.f << 8) | xnode.t;
algbr (xnode.f, xnode.t, false);
return (true);
}
}
if (cnt > 1)
ShowMessage ("Ambiguous Move!");
return (false);
}
void
help (void)
{
ClrScreen ();
printz ("CHESS command summary\n");
printz ("g1f3 move from g1 to f3 quit Exit Chess\n");
printz ("Nf3 move knight to f3 beep on/off\n");
printz ("o-o castle king side easy on/off\n");
printz ("o-o-o castle queen side hash on/off\n");
printz ("bd redraw board reverse board display\n");
printz ("list game to chess.lst book on/off\n");
printz ("undo undo last ply remove take back a move\n");
printz ("edit edit board force enter game moves\n");
printz ("switch sides with computer both computer match\n");
printz ("white computer plays white black computer plays black\n");
printz ("depth set search depth level select level\n");
printz ("post principle variation hint suggest a move\n");
printz ("save game to file get game from file\n");
printz ("random randomize play new start new game\n");
printz ("rv toggle reverse video coords toggle coords\n");
printz ("shade toggle shade black stars toggle stars\n");
printz ("p show coordinate values\n");
gotoXY (10, 21);
printz ("Computer: %s", ColorStr[computer]);
gotoXY (10, 22);
printz ("Opponent: %s", ColorStr[opponent]);
gotoXY (10, 23);
printz ("Level: %ld", Level);
gotoXY (10, 24);
printz ("Easy mode: %s", (flag.easy) ? "ON" : "OFF");
gotoXY (40, 21);
printz ("Depth: %d", MaxSearchDepth);
gotoXY (40, 22);
printz ("Random: %s", (dither) ? "ON" : "OFF");
gotoXY (40, 23);
printz ("Transposition table: %s", (flag.hash) ? "ON" : "OFF");
gotoXY (40, 24);
printz ("Hit <RET> to return: ");
refresh ();
fflush(stdin);
getchar();
ClrScreen ();
UpdateDisplay (0, 0, 1, 0);
}
void
EditBoard (void)
/*
Set up a board position. Pieces are entered by typing the piece
followed by the location. For example, Nf3 will place a knight on
square f3.
*/
{
short a, r, c, sq, i;
char s[80];
ClrScreen ();
UpdateDisplay (0, 0, 1, 0);
gotoXY (TAB, 3);
printz (". Exit to main");
gotoXY (TAB, 4);
printz ("# Clear board");
gotoXY (TAB, 5);
printz ("c Change sides");
gotoXY (TAB, 7);
printz ("Enter piece & location: ");
a = white;
do
{
gotoXY (TAB, 6);
printz ("Editing: %s", ColorStr[a]);
gotoXY (TAB + 24, 7);
ClrEoln ();
scanz ("%s", s);
if (s[0] == '#')
{
for(sq = 0; sq < 64; sq++)
{
board[sq] = no_piece;
color[sq] = neutral;
DrawPiece (sq);
}
}
if (s[0] == 'c' || s[0] == 'C')
a = otherside[a];
c = s[1] - 'a';
r = s[2] - '1';
if ((c >= 0) && (c < 8) && (r >= 0) && (r < 8))
{
sq = locn (r, c);
for (i = king; i > no_piece; i--)
if ((s[0] == pxx[i]) || (s[0] == qxx[i]))
break;
board[sq] = i;
color[sq] = (board[sq] == no_piece) ? neutral : a;
DrawPiece (sq);
}
} while (s[0] != '.');
for (sq = 0; sq < 64; sq++)
Mvboard[sq] = (board[sq] != Stboard[sq]) ? 10 : 0;
GameCnt = 0;
Game50 = 1;
ZeroRPT ();
Sdepth = 0;
InitializeStats ();
ClrScreen ();
UpdateDisplay (0, 0, 1, 0);
}
void
ShowPlayers (void)
{
gotoXY (5, ((flag.reverse) ? 23 : 2));
printz ("%s", (computer == black) ? "Computer" : "Human ");
gotoXY (5, ((flag.reverse) ? 2 : 23));
printz ("%s", (computer == white) ? "Computer" : "Human ");
}
void
ShowDepth (char ch)
{
gotoXY (TAB, 4);
printz ("Depth= %d%c ", Sdepth, ch);
ClrEoln ();
}
void
ShowScore (short score)
{
gotoXY (TAB, 5);
printz ("Score= %d", score);
ClrEoln ();
}
void
ShowMessage (char *s)
{
gotoXY (TAB, 6);
printz ("%s", s);
ClrEoln ();
}
void
ClearMessage (void)
{
gotoXY (TAB, 6);
ClrEoln ();
}
void
ShowCurrentMove (short int pnt, short int f, short int t)
{
algbr (f, t, false);
gotoXY (TAB, 7);
printz ("(%2d) %4s", pnt, mvstr[0]);
}
void
ShowHeader (void)
{
gotoXY (TAB, 2);
printz ("GNU Chess");
}
void
ShowSidetomove (void)
{
gotoXY (TAB, 14);
printz ("%2d: %s", 1 + GameCnt / 2, ColorStr[player]);
ClrEoln ();
}
void
ShowPrompt (void)
{
gotoXY (TAB, 19);
printz ("Your move is? ");
ClrEoln ();
}
void
ShowNodeCnt (long int NodeCnt, long int evrate)
{
gotoXY (TAB, 21);
printz ("Nodes= %8ld, Nodes/Sec= %5ld", NodeCnt, evrate);
ClrEoln ();
}
void
ShowResults (short int score, short unsigned int *bstline, char ch)
{
unsigned char d, ply;
if (flag.post)
{
ShowDepth (ch);
ShowScore (score);
d = 7;
for (ply = 1; bstline[ply] > 0; ply++)
{
if (ply % 4 == 1)
{
gotoXY (TAB, ++d);
ClrEoln ();
}
algbr ((short) bstline[ply] >> 8, (short) bstline[ply] & 0xFF, false);
printz ("%5s ", mvstr[0]);
}
ClrEoln ();
while (d < 13)
{
gotoXY (TAB, ++d);
ClrEoln ();
}
}
}
void
SearchStartStuff (short int side)
{
short i;
signal (SIGINT, TerminateSearch);
#ifdef MSDOS
side++; /* shut up the compiler */
#else
signal (SIGQUIT, TerminateSearch);
#endif /* MSDOS */
for (i = 4; i < 14; i++)
{
gotoXY (TAB, i);
ClrEoln ();
}
}
void
OutputMove (void)
{
int i;
UpdateDisplay (root->f, root->t, 0, (short) root->flags);
gotoXY (TAB, 17);
printz ("My move is: %s", mvstr[0]);
if (flag.beep)
putchar (7);
ClrEoln ();
gotoXY (TAB, 24);
if (root->flags & draw)
printz ("Drawn game!");
else if (root->score == -9999)
printz ("Opponent mates!");
else if (root->score == 9998)
printz ("Computer mates!");
else if (root->score < -9000)
printz ("Opponent will soon mate!");
else if (root->score > 9000)
printz ("Computer will soon mate!");
ClrEoln ();
if (flag.post)
{
ShowNodeCnt (NodeCnt, evrate);
gotoXY (TAB, 22);
for (i = 1999; i >= 0 && Tree[i].f == 0 && Tree[i].t == 0; i--);
printz ("Max Tree= %5d", i);
ClrEoln ();
}
}
void
ElapsedTime (short int iop)
/*
Determine the time that has passed since the search was started. If
the elapsed time exceeds the target (ResponseTime+ExtraTime) then set
timeout to true which will terminate the search.
*/
{
et = time ((long *) 0) - time0;
if (et < 0)
et = 0;
ETnodes += 50;
if (et > et0 || iop == 1)
{
if (et > ResponseTime + ExtraTime && Sdepth > 1)
flag.timeout = true;
et0 = et;
if (iop == 1)
{
time0 = time ((long *) 0);
et0 = 0;
}
if (et > 0)
/* evrate used to be Nodes / cputime I dont` know why */
evrate = NodeCnt / (et + ft);
else
evrate = 0;
ETnodes = NodeCnt + 50;
UpdateClocks ();
}
}
void
UpdateClocks (void)
{
short m, s;
m = (short) (et / 60);
s = (short) (et - 60 * (long) m);
if (TCflag)
{
m = (short) ((TimeControl.clock[player] - et) / 60);
s = (short) (TimeControl.clock[player] - et - 60 * (long) m);
}
if (m < 0)
m = 0;
if (s < 0)
s = 0;
if (player == white)
gotoXY (20, (flag.reverse) ? 2 : 23);
else
gotoXY (20, (flag.reverse) ? 23 : 2);
printz ("%d:%2d ", m, s);
if (flag.post)
ShowNodeCnt (NodeCnt, evrate);
refresh ();
}
void
SetTimeControl (void)
{
if (TCflag)
{
TimeControl.moves[white] = TimeControl.moves[black] = TCmoves;
TimeControl.clock[white] = TimeControl.clock[black] = 60 * (long) TCminutes;
}
else
{
TimeControl.moves[white] = TimeControl.moves[black] = 0;
TimeControl.clock[white] = TimeControl.clock[black] = 0;
Level = 60 * (long) TCminutes;
}
et = 0;
ElapsedTime (1);
}
void
gotoXY (short int x, short int y)
{
#ifdef MSDOS
putchar(ESC);
putchar('[');
param(y);
putchar(';');
param(x);
putchar('H');
#else
move (y - 1, x - 1);
#endif /* MSDOS */
}
void
ClrScreen (void)
{
#ifdef MSDOS
putchar(ESC);
putchar('[');
putchar('2');
putchar('J');
#else
clear ();
#endif /* MSDOS */
refresh ();
}
void
ClrEoln (void)
{
#ifdef MSDOS
putchar(ESC);
putchar('[');
putchar('K');
#else
clrtoeol ();
#endif /* MSDOS */
refresh ();
}
#ifdef MSDOS
void
param(short n)
{
if (n >= 10)
{
register short d, q;
q = n/10; d = n%10;
putchar(q + '0');
putchar(d + '0');
}
else
putchar(n + '0');
}
#endif /* MSDOS */
void
DrawPiece (short int sq)
{
register char x;
if (color[sq] == black)
#if defined(MSDOS) && !defined(SEVENBIT)
x = '7'; /* print WHITE boldface, */
else
x = '1'; /* print BLACK inverted */
gotoXY (6 + 5 * VIR_C(sq), 5 + 2 * (7 - VIR_R(sq)));
printz ("\033[%cm%c\033[0m", x, pxx[board[sq]]);
#else
x = '*';
else
x = ' ';
gotoXY (5 + 5 * VIR_C(sq), 5 + 2 * (7 - VIR_R(sq)));
printz ("%c%c ", x, pxx[board[sq]]);
#endif /* MSDOS && !SEVENBIT */
}
void
ShowPostnValue (short int sq)
/*
must have called ExaminePosition() first
*/
{
short score;
gotoXY (4 + 5 * VIR_C(sq), 5 + 2 * (7 - VIR_R(sq)));
ScorePosition(color[sq], &score);
if (color[sq] != neutral)
printz ("%3d ", svalue[sq]);
else
printz (" ");
}
void
ShowPostnValues (void)
{
short sq, score;
ExaminePosition ();
for (sq = 0; sq < 64; sq++)
ShowPostnValue (sq);
ScorePosition (opponent, &score);
ShowScore (score);
}
void
UpdateDisplay (short int f, short int t, short int redraw, short int isspec)
{
short i, sq, z;
if (redraw)
{
ShowHeader ();
ShowPlayers ();
i = 3;
gotoXY (3, ++i);
#if defined(MSDOS) && !defined(SEVENBIT)
printz ("\332\304\304\304\304\302\304\304\304\304\302\304\304\304\304"\
"\302\304\304\304\304\302\304\304\304\304\302\304\304\304\304"\
"\302\304\304\304\304\302\304\304\304\304\277");
#else
printz ("+----+----+----+----+----+----+----+----+");
#endif /* MSDOS && !SEVENBIT */
while (i < 19)
{
gotoXY (1, ++i);
if (flag.reverse)
z = (i / 2) - 1;
else
z = 10 - (i / 2);
#if defined(MSDOS) && !defined(SEVENBIT)
printz ("%d \263 \263 \263 \263 \263 \263 "\
"\263 \263 \263",z);
#else
printz ("%d | | | | | | | | |",z);
#endif /* MSDOS && !SEVENBIT */
gotoXY (3, ++i);
if (i < 19)
#if defined(MSDOS) && !defined(SEVENBIT)
printz ("\303\304\304\304\304\305\304\304\304\304\305\304\304"\
"\304\304\305\304\304\304\304\305\304\304\304\304\305"\
"\304\304\304\304\305\304\304\304\304\305\304\304\304"\
"\304\264");
#else
printz ("+----+----+----+----+----+----+----+----+");
#endif /* MSDOS && !SEVENBIT */
}
#if defined(MSDOS) && !defined(SEVENBIT)
printz ("\300\304\304\304\304\301\304\304\304\304\301\304\304\304\304"\
"\301\304\304\304\304\301\304\304\304\304\301\304\304\304\304"\
"\301\304\304\304\304\301\304\304\304\304\331");
#else
printz ("+----+----+----+----+----+----+----+----+");
#endif /* MSDOS && !SEVENBIT */
gotoXY (3, 21);
if (flag.reverse)
printz (" h g f e d c b a");
else
printz (" a b c d e f g h");
for (sq = 0; sq < 64; sq++)
DrawPiece (sq);
}
else
{
DrawPiece (f);
DrawPiece (t);
if (isspec & cstlmask)
if (t > f)
{
DrawPiece (f + 3);
DrawPiece (t - 1);
}
else
{
DrawPiece (f - 4);
DrawPiece (t + 1);
}
else if (isspec & epmask)
{
DrawPiece (t - 8);
DrawPiece (t + 8);
}
}
refresh ();
}
void
GetGame (void)
{
FILE *fd;
char fname[256], tname[256];
char *tmp;
int c;
short sq;
unsigned short m;
tname[0] = 0;
if (tmp = getenv ("HOME"))
strcpy (fname, tmp);
else
fname[0] = '\0';
strcat (fname, "/");
ShowMessage ("File name: ");
scanz ("%s", tname);
if (tname[0])
strcat (fname, tname);
else
strcat (fname, "chess.000");
ShowMessage("Loading ");
printz ("%s", fname);
if ((fd = fopen (fname, "r")) == NULL)
{
ShowMessage ("Load failed");
return;
}
fscanf (fd, "%hd%hd%hd", &computer, &opponent, &Game50);
fscanf (fd, "%hd%hd", &castld[white], &castld[black]);
fscanf (fd, "%hd%hd", &TCflag, &OperatorTime);
fscanf (fd, "%ld%ld%hd%hd",
&TimeControl.clock[white], &TimeControl.clock[black],
&TimeControl.moves[white], &TimeControl.moves[black]);
for (sq = 0; sq < 64; sq++)
{
fscanf (fd, "%hd%hd", &m, &Mvboard[sq]);
board[sq] = (m >> 8);
color[sq] = (m & 0xFF);
if (color[sq] == 0)
color[sq] = neutral;
else
--color[sq];
}
GameCnt = 0;
c = '?';
while (c != EOF)
{
++GameCnt;
c = fscanf (fd, "%hd%hd%hd%ld%hd%hd%hd", &GameList[GameCnt].gmove,
&GameList[GameCnt].score, &GameList[GameCnt].depth,
&GameList[GameCnt].nodes, &GameList[GameCnt].time,
&GameList[GameCnt].piece, &GameList[GameCnt].color);
if (GameList[GameCnt].color == 0)
GameList[GameCnt].color = neutral;
else
--GameList[GameCnt].color;
}
GameCnt--;
if (TimeControl.clock[white] > 0)
TCflag = true;
computer--;
opponent--;
fclose (fd);
InitializeStats ();
Sdepth = 0;
ShowMessage ("Load done. Press <Ret>");
fflush (stdin);
getchar ();
UpdateDisplay (0, 0, 1, 0);
}
void
SaveGame (void)
{
FILE *fd;
char fname[256], tname[256];
char *tmp;
short sq, i, c;
tname[0] = 0;
if (tmp = getenv ("HOME"))
strcpy (fname, tmp);
else
fname[0] = '\0';
strcat (fname, "/");
ShowMessage ("File name: ");
refresh ();
scanz ("%s", tname);
if (tname[0])
strcat (fname, tname);
else
strcat (fname, "chess.000");
ShowMessage("Saving ");
printz ("%s", fname);
if (NULL == (fd = fopen (fname, "w")))
{
ShowMessage ("Not saved");
return;
}
fprintf (fd, "%d %d %d\n", computer + 1, opponent + 1, Game50);
fprintf (fd, "%d %d\n", castld[white], castld[black]);
fprintf (fd, "%d %d\n", TCflag, OperatorTime);
fprintf (fd, "%ld %ld %d %d\n",
TimeControl.clock[white], TimeControl.clock[black],
TimeControl.moves[white], TimeControl.moves[black]);
for (sq = 0; sq < 64; sq++)
{
if (color[sq] == neutral)
c = 0;
else
c = color[sq] + 1;
fprintf (fd, "%d %d\n", 256 * board[sq] + c, Mvboard[sq]);
}
for (i = 1; i <= GameCnt; i++)
{
if (GameList[i].color == neutral)
c = 0;
else
c = GameList[i].color + 1;
fprintf (fd, "%d %d %d %ld %d %d %d\n",
GameList[i].gmove, GameList[i].score, GameList[i].depth,
GameList[i].nodes, GameList[i].time,
GameList[i].piece, c);
}
fclose (fd);
ShowMessage ("Save done. Press <Ret>");
fflush (stdin);
getchar ();
}
void
ListGame (void)
{
FILE *fd;
char fname[256];
char *tmp;
short i, f, t;
if (tmp = getenv ("HOME"))
strcpy (fname, tmp);
else
fname[0] = '\0';
strcat (fname, "/chess.lst");
if (fd = fopen (fname, "w"))
ShowMessage ("Writing ~/chess.lst");
else
{
ShowMessage ("Cannot write ~/chess.lst");
return;
}
fprintf (fd, "\n");
fprintf (fd, " score depth nodes time ");
fprintf (fd, " score depth nodes time\n");
for (i = 1; i <= GameCnt; i++)
{
f = GameList[i].gmove >> 8;
t = (GameList[i].gmove & 0xFF);
algbr (f, t, false);
if ((i % 2) == 0)
fprintf (fd, "\n");
else
fprintf (fd, " ");
fprintf (fd, "%5s %5d %2d %7ld %5d", mvstr[0],
GameList[i].score, GameList[i].depth,
GameList[i].nodes, GameList[i].time);
}
fprintf (fd, "\n\n");
fclose (fd);
ShowMessage ("~/chess.lst written");
}
void
Undo (void)
/*
Undo the most recent half-move.
*/
{
short f, t;
f = GameList[GameCnt].gmove >> 8;
t = GameList[GameCnt].gmove & 0xFF;
if (board[t] == king && distance (t, f) > 1)
(void) castle (GameList[GameCnt].color, f, t, 2);
else
{
/* Check for promotion: */
if ((color[t] == white && row (f) == 6 && row (t) == 7)
|| (color[t] == black && row (f) == 1 && row (t) == 0))
{
int g, from = f;
for (g = GameCnt - 1; g > 0; g--)
if (GameList[g].gmove & 0xFF == from)
from = GameList[g].gmove >> 8;
if ((color[t] == white && row (from) == 1)
|| (color[t] == black && row (from) == 6))
board[t] = pawn;
}
board[f] = board[t];
color[f] = color[t];
board[t] = GameList[GameCnt].piece;
color[t] = GameList[GameCnt].color;
if (color[t] != neutral)
Mvboard[t]--;
Mvboard[f]--;
}
if (TCflag)
++TimeControl.moves[color[f]];
GameCnt--;
computer = otherside[computer];
opponent = otherside[opponent];
flag.mate = false;
Sdepth = 0;
UpdateDisplay (0, 0, 1, 0);
InitializeStats ();
}
void
ChangeAlphaWindow (void)
{
ShowMessage ("Awindow= ");
scanz ("%hd", &Awindow);
}
void
ChangeBetaWindow (void)
{
ShowMessage ("Bwindow= ");
scanz ("%hd", &Bwindow);
}
void
GiveHint (void)
{
char s[40];
algbr ((short) (hint >> 8), (short) (hint & 0xFF), false);
strcpy (s, "try ");
strcat (s, mvstr[0]);
ShowMessage (s);
}
void
ChangeSearchDepth (void)
{
ShowMessage ("depth= ");
scanz ("%hd", &MaxSearchDepth);
}
void
SetContempt (void)
{
ShowMessage ("contempt= ");
scanz ("%hd", &contempt);
}
void
ChangeXwindow (void)
{
ShowMessage ("xwndw= ");
scanz ("%hd", &xwndw);
}
void
SelectLevel (void)
{
ClrScreen ();
gotoXY (32, 2);
printz ("CHESS");
gotoXY (20, 4);
printz (" 1. 60 moves in 5 minutes");
gotoXY (20, 5);
printz (" 2. 60 moves in 15 minutes");
gotoXY (20, 6);
printz (" 3. 60 moves in 30 minutes");
gotoXY (20, 7);
printz (" 4. 40 moves in 30 minutes");
gotoXY (20, 8);
printz (" 5. 40 moves in 60 minutes");
gotoXY (20, 9);
printz (" 6. 40 moves in 120 minutes");
gotoXY (20, 10);
printz (" 7. 40 moves in 240 minutes");
gotoXY (20, 11);
printz (" 8. 1 move in 15 minutes");
gotoXY (20, 12);
printz (" 9. 1 move in 60 minutes");
gotoXY (20, 13);
printz ("10. 1 move in 600 minutes");
OperatorTime = 1;
TCmoves = 60;
TCminutes = 5;
gotoXY (20, 17);
printz ("Enter Level: ");
refresh ();
scanz ("%ld", &Level);
switch ((int) Level)
{
case 1:
TCmoves = 60;
TCminutes = 5;
break;
case 2:
TCmoves = 60;
TCminutes = 15;
break;
case 3:
TCmoves = 60;
TCminutes = 30;
break;
case 4:
TCmoves = 40;
TCminutes = 30;
break;
case 5:
TCmoves = 40;
TCminutes = 60;
break;
case 6:
TCmoves = 40;
TCminutes = 120;
break;
case 7:
TCmoves = 40;
TCminutes = 240;
break;
case 8:
TCmoves = 1;
TCminutes = 15;
break;
case 9:
TCmoves = 1;
TCminutes = 60;
break;
case 10:
TCmoves = 1;
TCminutes = 600;
break;
}
TCflag = (TCmoves > 1);
SetTimeControl ();
ClrScreen ();
UpdateDisplay (0, 0, 1, 0);
}
void
DoDebug (void)
{
short c, p, sq, tp, tc, tsq, score;
char s[40];
ExaminePosition ();
ShowMessage ("Enter piece: ");
scanz ("%s", s);
c = neutral;
if (s[0] == 'w' || s[0] == 'W')
c = white;
if (s[0] == 'b' || s[0] == 'B')
c = black;
for(p = king; p > no_piece; p--)
if ((s[1] == pxx[p]) || (s[1] == qxx[p]))
break;
for (sq = 0; sq < 64; sq++)
{
tp = board[sq];
tc = color[sq];
board[sq] = p;
color[sq] = c;
tsq = PieceList[c][1];
PieceList[c][1] = sq;
ShowPostnValue (sq);
PieceList[c][1] = tsq;
board[sq] = tp;
color[sq] = tc;
}
ScorePosition (opponent, &score);
ShowScore (score);
}
void
TestSpeed(void (*f) (short int side, short int ply))
{
short i;
long t1, t2;
t1 = time (0);
for (i = 0; i < 10000; i++)
{
f (opponent, 2);
}
t2 = time (0);
NodeCnt = 10000L * (TrPnt[3] - TrPnt[2]);
evrate = NodeCnt / (t2 - t1);
ShowNodeCnt (NodeCnt, evrate);
}
void
InputCommand (void)
/*
Process the users command. If easy mode is OFF (the computer is thinking
on opponents time) and the program is out of book, then make the 'hint'
move on the board and call SelectMove() to find a response. The user
terminates the search by entering ^C (quit siqnal) before entering a
command. If the opponent does not make the hint move, then set Sdepth to
zero.
*/
{
short ok, tmp;
unsigned short mv;
char s[80];
ok = flag.quit = false;
player = opponent;
ShowSidetomove ();
ft = 0;
if (hint > 0 && !flag.easy && Book == NULL)
{
fflush (stdout);
time0 = time ((long *) 0);
algbr ((short) hint >> 8, (short) hint & 0xFF, false);
strcpy (s, mvstr[0]);
tmp = epsquare;
if (VerifyMove (s, 1, &mv))
{
ShowPrompt ();
SelectMove (computer, 2);
(void) VerifyMove (mvstr[0], 2, &mv);
if (Sdepth > 0)
Sdepth--;
}
ft = time ((long *) 0) - time0;
epsquare = tmp;
}
signal (SIGINT, Die);
#ifndef MSDOS
signal (SIGQUIT, Die);
#endif /* MSDOS */
while (!(ok || flag.quit))
{
ShowPrompt ();
scanz ("%s", s);
player = opponent;
ok = VerifyMove (s, 0, &mv);
if (ok && mv != hint)
{
Sdepth = 0;
ft = 0;
}
if (*s == '\0')
UpdateDisplay (0, 0, 1, 0);
if (strcmp (s, "bd") == 0)
{
ClrScreen ();
UpdateDisplay (0, 0, 1, 0);
}
if ((strcmp (s, "quit") == 0) || (strcmp (s, "exit") == 0))
flag.quit = true;
if (strcmp (s, "post") == 0)
flag.post = !flag.post;
if (strcmp (s, "edit") == 0)
EditBoard ();
if (strcmp (s, "go") == 0)
ok = true;
if (strcmp (s, "help") == 0)
help ();
if (strcmp (s, "force") == 0)
flag.force = !flag.force;
if (strcmp (s, "book") == 0)
Book = NULL;
if (strcmp (s, "undo") == 0 && GameCnt > 0)
Undo ();
if (strcmp (s, "new") == 0)
NewGame ();
if (strcmp (s, "list") == 0)
ListGame ();
if (strcmp (s, "level") == 0)
SelectLevel ();
if (strcmp (s, "hash") == 0)
flag.hash = !flag.hash;
if (strcmp (s, "beep") == 0)
flag.beep = !flag.beep;
if (strcmp (s, "Awindow") == 0)
ChangeAlphaWindow ();
if (strcmp (s, "Bwindow") == 0)
ChangeBetaWindow ();
if (strcmp (s, "hint") == 0)
GiveHint ();
if (strcmp (s, "both") == 0)
{
flag.bothsides = !flag.bothsides;
Sdepth = 0;
SelectMove (opponent, 1);
ok = true;
}
if (strcmp (s, "reverse") == 0)
{
flag.reverse = !flag.reverse;
ClrScreen ();
UpdateDisplay (0, 0, 1, 0);
}
if (strcmp (s, "switch") == 0)
{
computer = otherside[computer];
opponent = otherside[opponent];
flag.force = false;
Sdepth = 0;
ok = true;
}
if (strcmp (s, "white") == 0)
{
computer = white;
opponent = black;
ok = true;
flag.force = false;
Sdepth = 0;
}
if (strcmp (s, "black") == 0)
{
computer = black;
opponent = white;
ok = true;
flag.force = false;
Sdepth = 0;
}
if (strcmp (s, "remove") == 0 && GameCnt > 1)
{
Undo ();
Undo ();
}
if (strcmp (s, "get") == 0)
GetGame ();
if (strcmp (s, "save") == 0)
SaveGame ();
if (strcmp (s, "depth") == 0)
ChangeSearchDepth ();
if (strcmp (s, "random") == 0)
dither = 6;
if (strcmp (s, "easy") == 0)
flag.easy = !flag.easy;
if (strcmp (s, "contempt") == 0)
SetContempt ();
if (strcmp (s, "xwndw") == 0)
ChangeXwindow ();
if (strcmp (s, "test") == 0)
{
ShowMessage("Testing MoveList Speed");
TestSpeed (MoveList);
ShowMessage("Testing CaptureList Speed");
TestSpeed (CaptureList);
}
if (strcmp (s, "p") == 0)
ShowPostnValues ();
if (strcmp (s, "debug") == 0)
DoDebug ();
}
ClearMessage ();
ElapsedTime (1);
if (flag.force)
{
computer = opponent;
opponent = otherside[computer];
}
signal (SIGINT, TerminateSearch);
#ifndef MSDOS
signal (SIGQUIT, TerminateSearch);
#endif /* MSDOS */
}