void
sgftreeWriteResult(SGFTree *tree, float score, int overwrite)
{
assert(tree->root);
sgfWriteResult(tree->root, score, overwrite);
}
/* --------------------------------------------------------------*/
void
play_gmp(Gameinfo *gameinfo, int simplified)
{
SGFTree sgftree;
Gmp *ge;
GmpResult message;
const char *error;
int i, j;
int passes = 0; /* two passes and its over */
int to_move; /* who's turn is next ? */
int mycolor = -1; /* who has which color */
int yourcolor;
if (gameinfo->computer_player == WHITE)
mycolor = 1;
else if (gameinfo->computer_player == BLACK)
mycolor = 0;
sgftree_clear(&sgftree);
sgftreeCreateHeaderNode(&sgftree, board_size, komi, gameinfo->handicap);
ge = gmp_create(0, 1);
TRACE("board size=%d\n", board_size);
/*
* The specification of the go modem protocol doesn't even discuss
* komi. So we have to guess the komi. If the komi is set on the
* command line, keep it. Otherwise, its value will be 0.0 and we
* use 5.5 in an even game, 0.5 otherwise.
*/
if (komi == 0.0) {
if (gameinfo->handicap == 0)
komi = 5.5;
else
komi = 0.5;
}
if (!simplified) {
/* Leave all the -1's so the client can negotiate the game parameters. */
if (chinese_rules)
gmp_startGame(ge, -1, -1, 5.5, -1, mycolor, 0);
else
gmp_startGame(ge, -1, -1, 5.5, 0, mycolor, 0);
}
else {
gmp_startGame(ge, board_size, gameinfo->handicap,
komi, chinese_rules, mycolor, 1);
}
do {
message = gmp_check(ge, 1, NULL, NULL, &error);
} while (message == gmp_nothing || message == gmp_reset);
if (message == gmp_err) {
fprintf(stderr, "gnugo-gmp: Error \"%s\" occurred.\n", error);
exit(EXIT_FAILURE);
}
else if (message != gmp_newGame) {
fprintf(stderr, "gnugo-gmp: Expecting a newGame, got %s\n",
gmp_resultString(message));
exit(EXIT_FAILURE);
}
gameinfo->handicap = gmp_handicap(ge);
if (!check_boardsize(gmp_size(ge), stderr))
exit(EXIT_FAILURE);
gnugo_clear_board(gmp_size(ge));
/* Let's pretend GMP knows about komi in case something will ever change. */
komi = gmp_komi(ge);
#if ORACLE
if (metamachine && oracle_exists)
oracle_clear_board(board_size);
#endif
sgfOverwritePropertyInt(sgftree.root, "SZ", board_size);
TRACE("size=%d, handicap=%d, komi=%f\n", board_size,
gameinfo->handicap, komi);
if (gameinfo->handicap)
to_move = WHITE;
else
to_move = BLACK;
if (gmp_iAmWhite(ge)) {
mycolor = WHITE; /* computer white */
yourcolor = BLACK; /* human black */
}
else {
mycolor = BLACK;
yourcolor = WHITE;
}
gameinfo->computer_player = mycolor;
sgf_write_header(sgftree.root, 1, get_random_seed(), komi,
gameinfo->handicap, get_level(), chinese_rules);
gameinfo->handicap = gnugo_sethand(gameinfo->handicap, sgftree.root);
sgfOverwritePropertyInt(sgftree.root, "HA", gameinfo->handicap);
/* main GMP loop */
while (passes < 2) {
if (to_move == yourcolor) {
int move;
/* Get opponent's move from gmp client. */
message = gmp_check(ge, 1, &j, &i, &error);
if (message == gmp_err) {
fprintf(stderr, "GNU Go: Sorry, error from gmp client\n");
sgftreeAddComment(&sgftree, "got error from gmp client");
sgffile_output(&sgftree);
return;
}
if (message == gmp_undo) {
int k;
assert(j > 0);
for (k = 0; k < j; k++) {
if (!undo_move(1)) {
fprintf(stderr, "GNU Go: play_gmp UNDO: can't undo %d moves\n",
j - k);
break;
}
sgftreeAddComment(&sgftree, "undone");
sgftreeBack(&sgftree);
to_move = OTHER_COLOR(to_move);
}
continue;
}
if (message == gmp_pass) {
passes++;
move = PASS_MOVE;
}
else {
passes = 0;
move = POS(i, j);
}
TRACE("\nyour move: %1m\n\n", move);
sgftreeAddPlay(&sgftree, to_move, I(move), J(move));
gnugo_play_move(move, yourcolor);
sgffile_output(&sgftree);
}
else {
/* Generate my next move. */
float move_value;
int move;
if (autolevel_on)
adjust_level_offset(mycolor);
move = genmove(mycolor, &move_value, NULL);
gnugo_play_move(move, mycolor);
sgffile_add_debuginfo(sgftree.lastnode, move_value);
if (is_pass(move)) {
/* pass */
sgftreeAddPlay(&sgftree, to_move, -1, -1);
gmp_sendPass(ge);
++passes;
}
else {
/* not pass */
sgftreeAddPlay(&sgftree, to_move, I(move), J(move));
gmp_sendMove(ge, J(move), I(move));
passes = 0;
TRACE("\nmy move: %1m\n\n", move);
}
sgffile_add_debuginfo(sgftree.lastnode, 0.0);
sgffile_output(&sgftree);
}
to_move = OTHER_COLOR(to_move);
}
/* two passes: game over */
gmp_sendPass(ge);
if (!quiet)
fprintf(stderr, "Game over - waiting for client to shut us down\n");
who_wins(mycolor, stderr);
if (showtime) {
gprintf("\nSLOWEST MOVE: %d at %1m ", slowest_movenum, slowest_move);
fprintf(stderr, "(%.2f seconds)\n", slowest_time);
fprintf(stderr, "\nAVERAGE TIME: %.2f seconds per move\n",
total_time / movenum);
fprintf(stderr, "\nTOTAL TIME: %.2f seconds\n",
total_time);
}
/* play_gmp() does not return to main(), therefore the score
* writing code is here.
*/
{
float score = gnugo_estimate_score(NULL, NULL);
sgfWriteResult(sgftree.root, score, 1);
}
sgffile_output(&sgftree);
if (!simplified) {
/* We hang around here until cgoban asks us to go, since
* sometimes cgoban crashes if we exit first.
*
* FIXME: Check if this is still needed. I made it dependand on
* `simplifed' just to avoid changes in GMP mode.
*/
while (1) {
message = gmp_check(ge, 1, &j, &i, &error);
if (!quiet)
fprintf(stderr, "Message %d from gmp\n", message);
if (message == gmp_err)
break;
}
}
#if ORACLE
if (metamachine && oracle_exists)
dismiss_oracle();
#endif
if (!quiet)
fprintf(stderr, "gnugo going down\n");
}
void
play_solo(Gameinfo *gameinfo, int moves)
{
SGFTree sgftree;
int passes = 0; /* num. consecutive passes */
int move_val;
double t1, t2;
int save_moves = moves;
int boardsize = gnugo_get_boardsize();
struct stats_data totalstats;
int total_owl_count = 0;
/* It tends not to be very imaginative in the opening,
* so we scatter a few stones randomly to start with.
* We add two random numbers to reduce the probability
* of playing stones near the edge.
*/
int n = 6 + 2*gg_rand()%5;
int i, j;
gnugo_set_komi(5.5);
sgftree_clear(&sgftree);
sgftreeCreateHeaderNode(&sgftree, gnugo_get_boardsize(), gnugo_get_komi());
sgf_write_header(sgftree.root, 1, random_seed, 5.5, level, chinese_rules);
/* Generate some random moves. */
if (boardsize > 6) {
do {
do {
i = (gg_rand() % 4) + (gg_rand() % (boardsize - 4));
j = (gg_rand() % 4) + (gg_rand() % (boardsize - 4));
} while (!gnugo_is_legal(i, j, gameinfo->to_move));
gnugo_play_move(i, j, gameinfo->to_move);
sgftreeAddPlay(&sgftree, gameinfo->to_move, i, j);
sgftreeAddComment(&sgftree, "random move");
gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
} while (--n > 0);
}
t1 = gg_cputime();
memset(&totalstats, '\0', sizeof(totalstats));
while (passes < 2 && --moves >= 0) {
reset_owl_node_counter();
move_val = gnugo_genmove(&i, &j, gameinfo->to_move);
gnugo_play_move(i, j, gameinfo->to_move);
sgffile_add_debuginfo(sgftree.lastnode, move_val);
sgftreeAddPlay(&sgftree, gameinfo->to_move, i, j);
sgffile_output(&sgftree);
gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
if (move_val < 0) {
++passes;
printf("%s(%d): Pass\n", gameinfo->to_move == BLACK ? "Black" : "White",
movenum);
}
else {
passes = 0;
gprintf("%s(%d): %m\n", gameinfo->to_move == BLACK ? "Black" : "White",
movenum, i, j);
}
totalstats.nodes += stats.nodes;
totalstats.position_entered += stats.position_entered;
totalstats.position_hits += stats.position_hits;
totalstats.read_result_entered += stats.read_result_entered;
totalstats.hash_collisions += stats.hash_collisions;
total_owl_count += get_owl_node_counter();
}
t2 = gg_cputime();
/* Two passes and it's over. (EMPTY == BOTH) */
gnugo_who_wins(EMPTY, stdout);
score = gnugo_estimate_score(&lower_bound, &upper_bound);
sgfWriteResult(sgftree.root, score, 1);
sgffile_output(&sgftree);
#if 0
if (t2 == t1)
printf("%.3f moves played\n", (double) (save_moves-moves));
else
printf("%.3f moves/sec\n", (save_moves-moves)/(t2-t1));
#else
printf("%10d moves played in %0.3f seconds\n", save_moves-moves, t2-t1);
if (save_moves != moves)
printf("%10.3f seconds/move\n", (t2-t1)/(save_moves-moves));
printf("%10d nodes\n", totalstats.nodes);
printf("%10d positions entered\n", totalstats.position_entered);
printf("%10d position hits\n", totalstats.position_hits);
printf("%10d read results entered\n", totalstats.read_result_entered);
printf("%10d hash collisions\n", totalstats.hash_collisions);
printf("%10d owl nodes\n", total_owl_count);
#endif
}
void
load_and_score_sgf_file(SGFTree *tree, Gameinfo *gameinfo,
const char *scoringmode)
{
int i, j, move_val;
float result;
char *tempc = NULL;
char dummy;
char text[250];
char winner;
int next;
int pass = 0;
SGFTree score_tree;
sgftree_clear(&score_tree);
sgftreeCreateHeaderNode(&score_tree, board_size, komi);
sgffile_printboard(&score_tree);
next = gameinfo->to_move;
doing_scoring = 1;
reset_engine();
if (!strcmp(scoringmode, "finish") || !strcmp(scoringmode, "aftermath")) {
do {
move_val = genmove_conservative(&i, &j, next);
if (move_val >= 0) {
pass = 0;
gprintf("%d %s move %m\n", movenum,
next == WHITE ? "white (O)" : "black (X)", i, j);
}
else {
++pass;
gprintf("%d %s move : PASS!\n", movenum,
next == WHITE ? "white (O)" : "black (X)");
}
play_move(POS(i, j), next);
sgffile_add_debuginfo(score_tree.lastnode, move_val);
sgftreeAddPlay(&score_tree, next, i, j);
sgffile_output(&score_tree);
next = OTHER_COLOR(next);
} while (movenum <= 10000 && pass < 2);
if (pass >= 2) {
/* Calculate the score */
if (!strcmp(scoringmode, "aftermath"))
score = aftermath_compute_score(next, komi, &score_tree);
else
score = gnugo_estimate_score(&lower_bound, &upper_bound);
if (score < 0.0) {
sprintf(text, "Black wins by %1.1f points\n", -score);
winner = 'B';
}
else if (score > 0.0) {
sprintf(text, "White wins by %1.1f points\n", score);
winner = 'W';
}
else {
sprintf(text, "Jigo\n");
winner = '0';
}
fputs(text, stdout);
sgftreeAddComment(&score_tree, text);
if (sgfGetCharProperty(tree->root, "RE", &tempc)) {
if (sscanf(tempc, "%1c%f", &dummy, &result) == 2) {
fprintf(stdout, "Result from file: %1.1f\n", result);
fputs("GNU Go result and result from file are ", stdout);
if (result == fabs(score) && winner == dummy)
fputs("identical\n", stdout);
else
fputs("different\n", stdout);
}
else {
if (tempc[2] == 'R') {
fprintf(stdout, "Result from file: Resign\n");
fputs("GNU Go result and result from file are ", stdout);
if (tempc[0] == winner)
fputs("identical\n", stdout);
else
fputs("different\n", stdout);
}
}
}
sgfWriteResult(score_tree.root, score, 1);
sgffile_output(&score_tree);
}
}
doing_scoring = 0;
if (strcmp(scoringmode, "aftermath")) {
/* Before we call estimate_score() we must make sure that the dragon
* status is computed. Therefore the call to examine_position().
*/
examine_position(next, EXAMINE_ALL);
score = estimate_score(NULL, NULL);
fprintf(stdout, "\n%s seems to win by %1.1f points\n",
score < 0 ? "B" : "W",
score < 0 ? -score : score);
}
}
void
play_solo(Gameinfo *gameinfo, int moves)
{
SGFTree sgftree;
int passes = 0; /* num. consecutive passes */
float move_value;
double t1, t2;
int save_moves = moves;
struct stats_data totalstats;
int total_owl_count = 0;
/* It tends not to be very imaginative in the opening,
* so we scatter a few stones randomly to start with.
* We add two random numbers to reduce the probability
* of playing stones near the edge.
*/
int n = 6 + 2*gg_rand()%5;
int i, j;
komi = 5.5;
sgftree_clear(&sgftree);
sgftreeCreateHeaderNode(&sgftree, board_size, komi, handicap);
sgf_write_header(sgftree.root, 1, get_random_seed(), 5.5, handicap,
get_level(), chinese_rules);
/* Generate some random moves. */
if (board_size > 6) {
do {
do {
i = (gg_rand() % 4) + (gg_rand() % (board_size - 4));
j = (gg_rand() % 4) + (gg_rand() % (board_size - 4));
} while (!is_allowed_move(POS(i, j), gameinfo->to_move));
gnugo_play_move(POS(i, j), gameinfo->to_move);
sgftreeAddPlay(&sgftree, gameinfo->to_move, i, j);
sgftreeAddComment(&sgftree, "random move");
gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
} while (--n > 0);
}
t1 = gg_cputime();
memset(&totalstats, '\0', sizeof(totalstats));
while (passes < 2 && --moves >= 0) {
int move;
reset_owl_node_counter();
move = genmove(gameinfo->to_move, &move_value, NULL);
gnugo_play_move(move, gameinfo->to_move);
sgffile_add_debuginfo(sgftree.lastnode, move_value);
sgftreeAddPlay(&sgftree, gameinfo->to_move, I(move), J(move));
sgffile_output(&sgftree);
gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
if (move == PASS_MOVE) {
passes++;
printf("%s(%d): Pass\n", gameinfo->to_move == BLACK ? "Black" : "White",
movenum);
}
else {
passes = 0;
gprintf("%s(%d): %1m\n", gameinfo->to_move == BLACK ? "Black" : "White",
movenum, move);
}
totalstats.nodes += stats.nodes;
totalstats.read_result_entered += stats.read_result_entered;
totalstats.read_result_hits += stats.read_result_hits;
totalstats.trusted_read_result_hits += stats.trusted_read_result_hits;
total_owl_count += get_owl_node_counter();
}
t2 = gg_cputime();
/* Two passes and it's over. (EMPTY == BOTH) */
who_wins(EMPTY, stdout);
{
float score = gnugo_estimate_score(NULL, NULL);
sgfWriteResult(sgftree.root, score, 1);
}
sgffile_output(&sgftree);
printf("%10d moves played in %0.3f seconds\n", save_moves-moves, t2-t1);
if (save_moves != moves)
printf("%10.3f seconds/move\n", (t2-t1)/(save_moves-moves));
printf("%10d nodes\n", totalstats.nodes);
printf("%10d read results entered\n", totalstats.read_result_entered);
printf("%10d read result hits\n", totalstats.read_result_hits);
printf("%10d trusted read result hits\n",
totalstats.trusted_read_result_hits);
printf("%10d owl nodes\n", total_owl_count);
}
void
load_and_score_sgf_file(SGFTree *tree, Gameinfo *gameinfo,
const char *scoringmode)
{
int move;
float move_value;
char *tempc = NULL;
char text[250];
char winner;
int next;
int pass = 0;
int method;
float score;
SGFTree local_tree;
SGFTree *score_tree = tree;
/* Default scoring method is ESTIMATE since it's fastest. */
method = ESTIMATE;
if (strcmp(scoringmode, "finish") == 0)
method = FINISH;
else if (strcmp(scoringmode, "aftermath") == 0)
method = AFTERMATH;
/* For aftermath scoring we compress the previous moves to a static
* board position in the output sgf. This helps a lot when debugging
* scoring mistakes. We don't do this for the finish method,
* however, since users may be better served by having GNU Go's
* selfplay added to the original game record.
*/
if (method == AFTERMATH) {
sgftree_clear(&local_tree);
/* Modify komi to compensate for captured stones. We start at a
* setup position and since there is no standard sgf property to
* tell the number of captured stones, a modified komi is the best
* available solution.
*/
sgftreeCreateHeaderNode(&local_tree, board_size,
komi + black_captured - white_captured, handicap);
sgffile_printboard(&local_tree);
sgfAddProperty(local_tree.lastnode, "PL",
gameinfo->to_move == WHITE ? "W" : "B");
score_tree = &local_tree;
}
next = gameinfo->to_move;
reset_engine();
/* Complete the game by selfplay for the finish and aftermath methods. */
if (method != ESTIMATE) {
doing_scoring = 1;
while (pass < 2) {
move = genmove_conservative(next, &move_value);
if (move != PASS_MOVE) {
pass = 0;
gprintf("%d %s move %1m\n", movenum,
next == WHITE ? "white (O)" : "black (X)", move);
}
else {
pass++;
gprintf("%d %s move PASS\n", movenum,
next == WHITE ? "white (O)" : "black (X)");
}
play_move(move, next);
sgffile_add_debuginfo(score_tree->lastnode, move_value);
sgftreeAddPlay(score_tree, next, I(move), J(move));
sgffile_output(score_tree);
next = OTHER_COLOR(next);
}
doing_scoring = 0;
}
/* Calculate the score. */
if (method == AFTERMATH)
score = aftermath_compute_score(next, score_tree);
else
score = gnugo_estimate_score(NULL, NULL);
if (score < 0.0) {
sprintf(text, "Black wins by %1.1f points\n", -score);
winner = 'B';
}
else if (score > 0.0) {
sprintf(text, "White wins by %1.1f points\n", score);
winner = 'W';
}
else {
sprintf(text, "Jigo\n");
winner = '0';
}
fputs(text, stdout);
sgftreeAddComment(score_tree, text);
/* For the finish and aftermath methods we compare the score with
* what's stored in the game record.
*
* FIXME: No comparison is made if the stored result was 0. Wins by
* time or forfeit are not handled either.
*
* FIXME: Does anybody actually care about this information? Just
* removing this piece of code is a tempting alternative.
*/
if (method != ESTIMATE && sgfGetCharProperty(tree->root, "RE", &tempc)) {
char dummy;
float result;
if (sscanf(tempc, "%1c%f", &dummy, &result) == 2) {
fprintf(stdout, "Result from file: %c+%1.1f\n", dummy, result);
fputs("GNU Go result and result from file are ", stdout);
if (result == fabs(score) && winner == dummy)
fputs("identical\n", stdout);
else
fputs("different\n", stdout);
}
else {
if (tempc[2] == 'R') {
fprintf(stdout, "Result from file: Resign\n");
fputs("GNU Go result and result from file are ", stdout);
if (tempc[0] == winner)
fputs("identical\n", stdout);
else
fputs("different\n", stdout);
}
}
}
if (method != ESTIMATE)
sgfWriteResult(score_tree->root, score, 1);
sgffile_output(score_tree);
}