+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
+ * This is GNU Go, a Go program. Contact gnugo@gnu.org, or see *
+ * http://www.gnu.org/software/gnugo/ for more information. *
+ * *
+ * Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, *
+ * 2008 and 2009 by the Free Software Foundation. *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of the GNU General Public License as *
+ * published by the Free Software Foundation - version 3 or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License in file COPYING for more details. *
+ * *
+ * You should have received a copy of the GNU General Public *
+ * License along with this program; if not, write to the Free *
+ * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, *
+ * Boston, MA 02111, USA. *
+\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include "gnugo.h"
+
+#include <ctype.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if READLINE
+#include <readline/history.h>
+#include <readline/readline.h>
+#endif
+
+#include "gg_utils.h"
+#include "interface.h"
+#include "liberty.h"
+#include "sgftree.h"
+
+#define DEBUG_COMMANDS "\
+capture <pos> try to capture indicated group\n\
+dead Toggle display of dead stones\n\
+defend <pos> try to defend indicated group\n\
+listdragons print dragon info \n\
+showarea display area\n\
+showdragons display dragons\n\
+showmoyo display moyo\n\
+showterri display territory\n\
+"
+
+/* ANSI color codes */
+#define RESETCOLOR "\x1B[0m"
+#define WHITECOLOR "\x1B[41m"
+#define BLACKCOLOR "\x1B[44m"
+#define TILE1COLOR "\x1B[47m"
+#define TILE2COLOR "\x1B[107m"
+#define TILE3COLOR "\x1B[43m"
+
+/* some options for the twoplayer interface */
+static int opt_showboard = 1;
+static int showdead = 0;
+static SGFTree sgftree;
+static int resignation_allowed;
+
+static int clock_on = 0;
+
+/* Unreasonable score used to detect missing information. */
+#define NO_SCORE 4711
+/* Keep track of the score estimated before the last computer move. */
+static int current_score_estimate = NO_SCORE;
+
+static void do_play_twoplayer(Gameinfo* gameinfo);
+static int twoplayer_endgame(Gameinfo* gameinfo, int reason);
+static void twoplayer_count(Gameinfo* gameinfo);
+static void showcapture(char* line);
+static void showdefense(char* line);
+static void twoplayer_goto(Gameinfo* gameinfo, char* line);
+static void twoplayer_free_handicap(Gameinfo* gameinfo, char* handicap_string);
+
+/* If sgf game info is written can't reset parameters like handicap, etc. */
+static int sgf_initialized;
+
+/*
+ * Create letterbar for the top and bottom of the ANSI board.
+ */
+
+static void
+make_letterbar(int boardsize, char* letterbar)
+{
+ int i, letteroffset;
+ char spaces[64];
+ char letter[64];
+
+ if (boardsize <= 25)
+ strcpy(spaces, " ");
+ strcpy(letterbar, " ");
+
+ for (i = 0; i < boardsize; i++) {
+ letteroffset = 'A';
+ if (i + letteroffset >= 'I')
+ letteroffset++;
+ strcat(letterbar, spaces);
+ sprintf(letter, "%c", i + letteroffset);
+ strcat(letterbar, letter);
+ }
+}
+
+/* This array contains +'s and -'s for the empty board positions.
+ * hspot_size contains the board size that the grid has been
+ * initialized to.
+ */
+
+static int hspot_size;
+static char hspots[MAX_BOARD][MAX_BOARD];
+
+/*
+ * Mark the handicap spots on the board.
+ */
+
+static void
+set_handicap_spots(int boardsize)
+{
+ if (hspot_size == boardsize)
+ return;
+
+ hspot_size = boardsize;
+
+ memset(hspots, '.', sizeof(hspots));
+
+ if (boardsize == 5) {
+ /* place the outer 4 */
+ hspots[1][1] = '+';
+ hspots[boardsize - 2][1] = '+';
+ hspots[1][boardsize - 2] = '+';
+ hspots[boardsize - 2][boardsize - 2] = '+';
+ /* and the middle one */
+ hspots[boardsize / 2][boardsize / 2] = '+';
+ return;
+ }
+
+ if (!(boardsize % 2)) {
+ /* If the board size is even, no center handicap spots. */
+ if (boardsize > 2 && boardsize < 12) {
+ /* Place the outer 4 only. */
+ hspots[2][2] = '+';
+ hspots[boardsize - 3][2] = '+';
+ hspots[2][boardsize - 3] = '+';
+ hspots[boardsize - 3][boardsize - 3] = '+';
+ } else {
+ /* Place the outer 4 only. */
+ hspots[3][3] = '+';
+ hspots[boardsize - 4][3] = '+';
+ hspots[3][boardsize - 4] = '+';
+ hspots[boardsize - 4][boardsize - 4] = '+';
+ }
+ } else {
+ /* Uneven board size */
+ if (boardsize > 2 && boardsize < 12) {
+ /* Place the outer 4... */
+ hspots[2][2] = '+';
+ hspots[boardsize - 3][2] = '+';
+ hspots[2][boardsize - 3] = '+';
+ hspots[boardsize - 3][boardsize - 3] = '+';
+
+ /* ...and the middle one. */
+ hspots[boardsize / 2][boardsize / 2] = '+';
+ } else if (boardsize > 12) {
+ /* Place the outer 4... */
+ hspots[3][3] = '+';
+ hspots[boardsize - 4][3] = '+';
+ hspots[3][boardsize - 4] = '+';
+ hspots[boardsize - 4][boardsize - 4] = '+';
+
+ /* ...and the inner 4... */
+ hspots[3][boardsize / 2] = '+';
+ hspots[boardsize / 2][3] = '+';
+ hspots[boardsize / 2][boardsize - 4] = '+';
+ hspots[boardsize - 4][boardsize / 2] = '+';
+
+ /* ...and the middle one. */
+ hspots[boardsize / 2][boardsize / 2] = '+';
+ }
+ }
+
+ return;
+}
+
+/*
+ * Display the board position when playing in ANSI.
+ */
+
+static void
+twoplayer_showboard(void)
+{
+ int i, j;
+ char letterbar[64];
+ int last_pos_was_move;
+ int pos_is_move;
+ int dead;
+ int last_move = get_last_move();
+
+ make_letterbar(board_size, letterbar);
+ set_handicap_spots(board_size);
+
+ printf("\n");
+ printf(" White (" WHITECOLOR " " RESETCOLOR ") has captured %d pieces\n", black_captured);
+ printf(" Black (" BLACKCOLOR " " RESETCOLOR ") has captured %d pieces\n", white_captured);
+ if (showscore) {
+ if (current_score_estimate == NO_SCORE)
+ printf(" No score estimate is available yet.\n");
+ else if (current_score_estimate < 0)
+ printf(" Estimated score: Black is ahead by %d\n",
+ -current_score_estimate);
+ else if (current_score_estimate > 0)
+ printf(" Estimated score: White is ahead by %d\n",
+ current_score_estimate);
+ else
+ printf(" Estimated score: Even!\n");
+ }
+
+ printf("\n");
+
+ fflush(stdout);
+ printf("%s", letterbar);
+
+ if (get_last_player() != EMPTY) {
+ gfprintf(stdout, " Last move: %s %1m",
+ get_last_player() == WHITE ? "White" : "Black",
+ last_move);
+ }
+
+ printf("\n");
+ fflush(stdout);
+
+ for (i = 0; i < board_size; i++) {
+ printf(" %2d", board_size - i);
+ last_pos_was_move = 0;
+ for (j = 0; j < board_size; j++) {
+ if (POS(i, j) == last_move)
+ pos_is_move = 128;
+ else
+ pos_is_move = 0;
+ dead = (dragon_status(POS(i, j)) == DEAD) && showdead;
+ switch (BOARD(i, j) + pos_is_move + last_pos_was_move) {
+ case BLACK:
+ case BLACK + 256:
+ printf(BLACKCOLOR " " RESETCOLOR);
+ last_pos_was_move = 0;
+ break;
+ case WHITE:
+ case WHITE + 256:
+ printf(WHITECOLOR " " RESETCOLOR);
+ last_pos_was_move = 0;
+ break;
+ case BLACK + 128:
+ printf(BLACKCOLOR "()" RESETCOLOR);
+ last_pos_was_move = 0;
+ break;
+ case WHITE + 128:
+ printf(WHITECOLOR "()" RESETCOLOR);
+ last_pos_was_move = 0;
+ break;
+ case EMPTY:
+ case EMPTY + 128:
+ case EMPTY + 256:
+ if (i % 2 == 0) {
+ if (j % 2 == 0) {
+ printf(TILE1COLOR " " RESETCOLOR);
+ } else {
+ printf(TILE2COLOR " " RESETCOLOR);
+ }
+ } else {
+ if (j % 2 == 0) {
+ printf(TILE2COLOR " " RESETCOLOR);
+ } else {
+ printf(TILE1COLOR " " RESETCOLOR);
+ }
+ }
+ last_pos_was_move = 0;
+ break;
+ default:
+ fprintf(stderr, "Illegal board value %d\n", (int)BOARD(i, j));
+ exit(EXIT_FAILURE);
+ break;
+ }
+ }
+
+ if (last_pos_was_move == 0) {
+ if (board_size > 10)
+ printf(" %2d", board_size - i);
+ else
+ printf(" %1d", board_size - i);
+ } else {
+ if (board_size > 10)
+ printf("%2d", board_size - i);
+ else
+ printf("%1d", board_size - i);
+ }
+ printf("\n");
+ }
+
+ fflush(stdout);
+ printf("%s\n\n", letterbar);
+ fflush(stdout);
+
+ if (clock_on) {
+ clock_print(WHITE);
+ clock_print(BLACK);
+ }
+
+} /* end twoplayer_showboard */
+
+/*
+ * command help
+ */
+
+static void
+show_commands(void)
+{
+ printf("\nCommands:\n");
+ printf(" back Take back your last move\n");
+ printf(" boardsize Set boardsize (on move 1 only)\n");
+ printf(" comment Write a comment to outputfile\n");
+ printf(" depth <num> Set depth for reading\n");
+ printf(" display Display game board\n");
+ printf(" exit Exit GNU Go\n");
+ printf(" force <move> Force a move for current color\n");
+ printf(" forward Go to next node in game tree\n");
+ printf(" goto <movenum> Go to movenum in game tree\n");
+ printf(" level <amount> Playing level (default = 10)\n");
+ printf(" handicap <num> Set fixed handicap (on move 1 only)\n");
+ printf(" freehandicap <num> Place free handicap (on move 1 only)\n");
+ printf(" Omit <num> to place handicap yourself\n");
+ printf(" help Display this help menu\n");
+ printf(" helpdebug Display debug help menu\n");
+ printf(" info Display program settings\n");
+ printf(" komi Set komi (on move 1 only)\n");
+ printf(" last Goto last node in game tree\n");
+ printf(" pass Pass on your move\n");
+ printf(" play <num> Play <num> moves\n");
+ printf(" playblack Play as Black (switch if White)\n");
+ printf(" playwhite Play as White (switch if Black)\n");
+ printf(" quit Exit GNU Go\n");
+ printf(" resign Resign the current game\n");
+ printf(" save <file> Save the current game\n");
+ printf(" load <file> Load a game from file\n");
+ printf(" score Toggle display of score On/Off\n");
+ printf(" showboard Toggle display of board On/Off\n");
+ printf(" switch Switch the color you are playing\n");
+ printf(" undo Take the last move back (same as back)\n");
+ printf(" <move> A move of the format <letter><number>");
+ printf("\n");
+}
+
+enum commands { INVALID = -1,
+ END,
+ EXIT,
+ QUIT,
+ RESIGN,
+ PASS,
+ MOVE,
+ FORCE,
+ SWITCH,
+ PLAY,
+ PLAYBLACK,
+ PLAYWHITE,
+ SETHANDICAP,
+ FREEHANDICAP,
+ SETBOARDSIZE,
+ SETKOMI,
+ SETDEPTH,
+ INFO,
+ DISPLAY,
+ SHOWBOARD,
+ HELP,
+ UNDO,
+ COMMENT,
+ SCORE,
+ CMD_DEAD,
+ CMD_BACK,
+ CMD_FORWARD,
+ CMD_LAST,
+ CMD_CAPTURE,
+ CMD_DEFEND,
+ CMD_HELPDEBUG,
+ CMD_SHOWAREA,
+ CMD_SHOWMOYO,
+ CMD_SHOWTERRI,
+ CMD_GOTO,
+ CMD_SAVE,
+ CMD_LOAD,
+ CMD_SHOWDRAGONS,
+ CMD_LISTDRAGONS,
+ SETLEVEL,
+ NEW,
+ COUNT,
+ CONTINUE
+};
+
+/*
+ * Check if we have a valid command.
+ */
+
+static int
+get_command(char* command)
+{
+ char c;
+ int d;
+
+ /* Check to see if a move was input. */
+ if (!((sscanf(command, "%c%d", &c, &d) != 2)
+ || ((c = toupper((int)c)) < 'A')
+ || ((c = toupper((int)c)) > 'Z')
+ || (c == 'I')))
+ return MOVE;
+
+ /* help shortcut */
+ if (command[0] == '?')
+ return HELP;
+
+ /* Kill leading spaces. */
+ while (command[0] == ' ')
+ command++;
+
+ if (!strncmp(command, "playblack", 9))
+ return PLAYBLACK;
+ if (!strncmp(command, "playwhite", 9))
+ return PLAYWHITE;
+ if (!strncmp(command, "showboard", 9))
+ return SHOWBOARD;
+ if (!strncmp(command, "showdragons", 9))
+ return CMD_SHOWDRAGONS;
+ if (!strncmp(command, "listdragons", 9))
+ return CMD_LISTDRAGONS;
+ if (!strncmp(command, "boardsize", 9))
+ return SETBOARDSIZE;
+ if (!strncmp(command, "freehandicap", 9))
+ return FREEHANDICAP;
+ if (!strncmp(command, "handicap", 5))
+ return SETHANDICAP;
+ if (!strncmp(command, "display", 7))
+ return DISPLAY;
+ if (!strncmp(command, "helpdebug", 7))
+ return CMD_HELPDEBUG;
+ if (!strncmp(command, "resign", 6))
+ return RESIGN;
+ if (!strncmp(command, "showmoyo", 6))
+ return CMD_SHOWMOYO;
+ if (!strncmp(command, "showterri", 6))
+ return CMD_SHOWTERRI;
+ if (!strncmp(command, "showarea", 6))
+ return CMD_SHOWAREA;
+ if (!strncmp(command, "depth", 5))
+ return SETDEPTH;
+ if (!strncmp(command, "switch", 5))
+ return SWITCH;
+ if (!strncmp(command, "komi", 4))
+ return SETKOMI;
+ if (!strncmp(command, "play", 4))
+ return PLAY;
+ if (!strncmp(command, "info", 4))
+ return INFO;
+ if (!strncmp(command, "force", 4))
+ return FORCE;
+ if (!strncmp(command, "level", 5))
+ return SETLEVEL;
+ if (!strncmp(command, "pass", 4))
+ return PASS;
+ if (!strncmp(command, "save", 3))
+ return CMD_SAVE;
+ if (!strncmp(command, "load", 3))
+ return CMD_LOAD;
+ if (!strncmp(command, "end", 3))
+ return END;
+ if (!strncmp(command, "move", 3))
+ return MOVE;
+ if (!strncmp(command, "undo", 3))
+ return UNDO;
+ if (!strncmp(command, "comment", 3))
+ return COMMENT;
+ if (!strncmp(command, "score", 3))
+ return SCORE;
+ if (!strncmp(command, "dead", 3))
+ return CMD_DEAD;
+ if (!strncmp(command, "capture", 3))
+ return CMD_CAPTURE;
+ if (!strncmp(command, "defend", 3))
+ return CMD_DEFEND;
+ if (!strncmp(command, "exit", 4))
+ return EXIT;
+ if (!strncmp(command, "quit", 4))
+ return QUIT;
+ if (!strncmp(command, "help", 1))
+ return HELP;
+ if (!strncmp(command, "back", 2))
+ return CMD_BACK;
+ if (!strncmp(command, "forward", 2))
+ return CMD_FORWARD;
+ if (!strncmp(command, "last", 2))
+ return CMD_LAST;
+ if (!strncmp(command, "goto", 2))
+ return CMD_GOTO;
+ if (!strncmp(command, "game", 2))
+ return NEW;
+ if (!strncmp(command, "count", 3))
+ return COUNT;
+ if (!strncmp(command, "continue", 4))
+ return CONTINUE;
+
+ /* No valid command was found. */
+ return INVALID;
+}
+
+/*
+ * Write sgf root node.
+ */
+
+static void
+init_sgf(Gameinfo* ginfo)
+{
+ if (sgf_initialized)
+ return;
+ sgf_initialized = 1;
+
+ sgf_write_header(sgftree.root, 1, get_random_seed(), komi,
+ ginfo->handicap, get_level(), chinese_rules);
+ if (ginfo->handicap > 0)
+ sgffile_recordboard(sgftree.root);
+}
+
+/*
+ * Generate the computer move.
+ */
+
+static int
+computer_move(Gameinfo* gameinfo, int* passes)
+{
+ int move;
+ float move_value;
+ int resign;
+ int resignation_declined = 0;
+ float upper_bound, lower_bound;
+
+ init_sgf(gameinfo);
+
+ /* Generate computer move. */
+ if (autolevel_on)
+ adjust_level_offset(gameinfo->to_move);
+ move = genmove(gameinfo->to_move, &move_value, &resign);
+ if (resignation_allowed && resign) {
+ int state = twoplayer_endgame(gameinfo, 2);
+ if (state != -1)
+ return state;
+
+ /* The opponent declined resignation. Remember not to resign again. */
+ resignation_allowed = 0;
+ resignation_declined = 1;
+ }
+
+ if (showscore) {
+ gnugo_estimate_score(&upper_bound, &lower_bound);
+ current_score_estimate = (int)((lower_bound + upper_bound) / 2.0);
+ }
+
+ mprintf("%s(%d): %1m\n", color_to_string(gameinfo->to_move),
+ movenum + 1, move);
+ if (is_pass(move))
+ (*passes)++;
+ else
+ *passes = 0;
+
+ gnugo_play_move(move, gameinfo->to_move);
+ sgffile_add_debuginfo(sgftree.lastnode, move_value);
+ sgftreeAddPlay(&sgftree, gameinfo->to_move, I(move), J(move));
+ if (resignation_declined)
+ sgftreeAddComment(&sgftree, "GNU Go resignation was declined");
+ sgffile_output(&sgftree);
+
+ gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
+ return 0;
+}
+
+/*
+ * Make a move.
+ */
+
+static int
+do_move(Gameinfo* gameinfo, char* command, int* passes, int force)
+{
+ int move = string_to_location(board_size, command);
+
+ if (move == NO_MOVE) {
+ printf("\nInvalid move: %s\n", command);
+ return 0;
+ }
+
+ if (!is_allowed_move(move, gameinfo->to_move)) {
+ printf("\nIllegal move: %s", command);
+ return 0;
+ }
+
+ *passes = 0;
+ TRACE("\nyour move: %1m\n\n", move);
+ init_sgf(gameinfo);
+ gnugo_play_move(move, gameinfo->to_move);
+ sgffile_add_debuginfo(sgftree.lastnode, 0.0);
+ sgftreeAddPlay(&sgftree, gameinfo->to_move, I(move), J(move));
+ sgffile_output(&sgftree);
+
+ if (opt_showboard) {
+ twoplayer_showboard();
+ printf("GNU Go is thinking...\n");
+ }
+
+ if (force) {
+ gameinfo->computer_player = OTHER_COLOR(gameinfo->computer_player);
+ gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
+ sgftreeAddComment(&sgftree, "forced");
+ return 0;
+ }
+
+ gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
+ return computer_move(gameinfo, passes);
+}
+
+/*
+ * Make a pass.
+ */
+
+static int
+do_pass(Gameinfo* gameinfo, int* passes, int force)
+{
+ (*passes)++;
+ init_sgf(gameinfo);
+ gnugo_play_move(PASS_MOVE, gameinfo->to_move);
+ sgffile_add_debuginfo(sgftree.lastnode, 0.0);
+ sgftreeAddPlay(&sgftree, gameinfo->to_move, -1, -1);
+ sgffile_output(&sgftree);
+
+ gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
+ if (force) {
+ gameinfo->computer_player = OTHER_COLOR(gameinfo->computer_player);
+ sgftreeAddComment(&sgftree, "forced");
+ return 0;
+ }
+
+ return computer_move(gameinfo, passes);
+}
+
+/*
+ * Play a game using ANSI client.
+ */
+
+void play_twoplayer(SGFTree* tree, Gameinfo* gameinfo, char* filename, char* until)
+{
+ int sz;
+
+ setvbuf(stdout, (char*)NULL, _IONBF, 0); /* No buffering. */
+
+ sgftree = *tree;
+
+ if (filename) {
+ /* No need to check for failure here since that was already done
+ * when it was loaded in main().
+ *
+ * FIXME: Why do we load the game again?
+ */
+ gameinfo_play_sgftree(gameinfo, &sgftree, until);
+ sgf_initialized = 1;
+ } else {
+ if (sgfGetIntProperty(sgftree.root, "SZ", &sz))
+ gnugo_clear_board(sz);
+ if (gameinfo->handicap == 0)
+ gameinfo->to_move = BLACK;
+ else {
+ gameinfo->handicap = place_fixed_handicap(gameinfo->handicap);
+ gameinfo->to_move = WHITE;
+ }
+ sgf_initialized = 0;
+ }
+
+ do_play_twoplayer(gameinfo);
+ printf("\nThanks! for playing GNU Go.\n\n");
+
+ /* main() frees the tree and we might have changed it. */
+ *tree = sgftree;
+}
+
+void do_play_twoplayer(Gameinfo* gameinfo)
+{
+ int m, num;
+ float fnum;
+ int passes = 0; /* two passes and its over */
+ int tmp;
+ char line[80];
+ char* line_ptr = line;
+ char* command;
+ char* tmpstring;
+ int state = 1;
+
+ if (have_time_settings())
+ clock_on = 1;
+
+ while (state == 1) {
+ state = 0;
+
+ /* No score is estimated yet. */
+ current_score_estimate = NO_SCORE;
+
+ /* Allow resignation at interface level (the engine may still be not
+ * allowed to resign.
+ */
+ resignation_allowed = 1;
+
+ printf("\nBeginning two player game.\n\n");
+ gameinfo_print(gameinfo);
+
+ /* Does the computer play first? If so, make a move. */
+ if (gameinfo->computer_player == gameinfo->to_move)
+ state = computer_move(gameinfo, &passes);
+
+ /* main ANSI Play loop */
+ while (state == 0) {
+ /* Display game board. */
+ if (opt_showboard)
+ twoplayer_showboard();
+
+#if !READLINE
+ /* Print the prompt */
+ mprintf("%s(%d): ", color_to_string(gameinfo->to_move), movenum + 1);
+
+ /* Read a line of input. */
+ line_ptr = line;
+ if (!fgets(line, 80, stdin))
+ return;
+#else
+ snprintf(line, 79, "%s(%d): ",
+ color_to_string(gameinfo->to_move), movenum + 1);
+ if (!(line_ptr = readline(line)))
+ return;
+
+ add_history(line_ptr);
+#endif
+
+ while (state == 0
+ && (command = strtok(line_ptr, ";"), line_ptr = 0, command)) {
+ /* Get the command or move. */
+ switch (get_command(command)) {
+ case RESIGN:
+ state = twoplayer_endgame(gameinfo, 1);
+ break;
+
+ case END:
+ case EXIT:
+ case QUIT:
+ return;
+
+ case HELP:
+ show_commands();
+ break;
+
+ case CMD_HELPDEBUG:
+ printf(DEBUG_COMMANDS);
+ break;
+
+ case SHOWBOARD:
+ opt_showboard = !opt_showboard;
+ break;
+
+ case INFO:
+ printf("\n");
+ gameinfo_print(gameinfo);
+ break;
+
+ case SETBOARDSIZE:
+ if (sgf_initialized) {
+ printf("Boardsize cannot be changed after record is started!\n");
+ break;
+ }
+ command += 10;
+ if (sscanf(command, "%d", &num) != 1) {
+ printf("\nInvalid command syntax!\n");
+ break;
+ }
+ if (!check_boardsize(num, stdout))
+ break;
+ /* Init board. */
+ board_size = num;
+ clear_board();
+ /* In case max handicap changes on smaller board. */
+ gameinfo->handicap = place_fixed_handicap(gameinfo->handicap);
+ sgfOverwritePropertyInt(sgftree.root, "SZ", board_size);
+ sgfOverwritePropertyInt(sgftree.root, "HA", gameinfo->handicap);
+ break;
+
+ case SETHANDICAP:
+ if (sgf_initialized) {
+ printf("Handicap cannot be changed after game is started!\n");
+ break;
+ }
+ command += 9;
+ if (sscanf(command, "%d", &num) != 1) {
+ printf("\nInvalid command syntax!\n");
+ break;
+ }
+ if (num < 0 || num > MAX_HANDICAP) {
+ printf("\nInvalid handicap: %d\n", num);
+ break;
+ }
+ /* Init board. */
+ clear_board();
+ /* Place stones on board but don't record sgf
+ * in case we change more info. */
+ gameinfo->handicap = place_fixed_handicap(num);
+ printf("\nSet handicap to %d\n", gameinfo->handicap);
+ gameinfo->to_move = (gameinfo->handicap ? WHITE : BLACK);
+ break;
+
+ case FREEHANDICAP:
+ if (sgf_initialized) {
+ printf("Handicap cannot be changed after game is started!\n");
+ break;
+ }
+ while (*command && *command != ' ')
+ command++;
+ twoplayer_free_handicap(gameinfo, command);
+ break;
+
+ case SETKOMI:
+ if (sgf_initialized) {
+ printf("Komi cannot be modified after game record is started!\n");
+ break;
+ }
+ command += 5;
+ if (sscanf(command, "%f", &fnum) != 1) {
+ printf("\nInvalid command syntax!\n");
+ break;
+ }
+ komi = fnum;
+ printf("\nSet Komi to %.1f\n", komi);
+ break;
+
+ case SETDEPTH:
+ command += 6;
+ if (sscanf(command, "%d", &num) != 1) {
+ printf("\nInvalid command syntax!\n");
+ break;
+ }
+ mandated_depth = num;
+ printf("\nSet depth to %d\n", mandated_depth);
+ break;
+
+ case SETLEVEL:
+ command += 6;
+ if (sscanf(command, "%d", &num) != 1) {
+ printf("\nInvalid command syntax!\n");
+ break;
+ }
+ set_level(num);
+ printf("\nSet level to %d\n", num);
+ break;
+
+ case DISPLAY:
+ if (!opt_showboard)
+ twoplayer_showboard();
+ break;
+
+ case FORCE:
+ command += 6; /* skip the force part... */
+ switch (get_command(command)) {
+ case MOVE:
+ state = do_move(gameinfo, command, &passes, 1);
+ break;
+ case PASS:
+ state = do_pass(gameinfo, &passes, 1);
+ break;
+ default:
+ printf("Illegal forced move: %s %d\n", command,
+ get_command(command));
+ break;
+ }
+ break;
+
+ case MOVE:
+ state = do_move(gameinfo, command, &passes, 0);
+ break;
+
+ case PASS:
+ state = do_pass(gameinfo, &passes, 0);
+ break;
+
+ case PLAY:
+ command += 5;
+ if (sscanf(command, "%d", &num) != 1) {
+ printf("\nInvalid command syntax!\n");
+ break;
+ }
+ if (num >= 0)
+ for (m = 0; m < num; m++) {
+ gameinfo->computer_player
+ = OTHER_COLOR(gameinfo->computer_player);
+ state = computer_move(gameinfo, &passes);
+ if (state)
+ break;
+ if (passes >= 2)
+ break;
+ }
+ else {
+ printf("\nInvalid number of moves specified: %d\n", num);
+ break;
+ }
+ break;
+
+ case PLAYBLACK:
+ if (gameinfo->computer_player == WHITE)
+ gameinfo->computer_player = BLACK;
+ if (gameinfo->computer_player == gameinfo->to_move)
+ state = computer_move(gameinfo, &passes);
+ break;
+
+ case PLAYWHITE:
+ if (gameinfo->computer_player == BLACK)
+ gameinfo->computer_player = WHITE;
+ if (gameinfo->computer_player == gameinfo->to_move)
+ state = computer_move(gameinfo, &passes);
+ break;
+
+ case SWITCH:
+ gameinfo->computer_player = OTHER_COLOR(gameinfo->computer_player);
+ state = computer_move(gameinfo, &passes);
+ break;
+
+ case UNDO:
+ case CMD_BACK:
+ if (undo_move(1)) {
+ sgftreeAddComment(&sgftree, "undone");
+ sgftreeBack(&sgftree);
+ gameinfo->to_move = OTHER_COLOR(gameinfo->to_move);
+ } else
+ printf("\nCan't undo.\n");
+ break;
+
+ case CMD_FORWARD:
+ if (sgftreeForward(&sgftree))
+ gameinfo->to_move = gnugo_play_sgfnode(sgftree.lastnode,
+ gameinfo->to_move);
+ else
+ printf("\nEnd of game tree.\n");
+ break;
+
+ case CMD_LAST:
+ while (sgftreeForward(&sgftree))
+ gameinfo->to_move = gnugo_play_sgfnode(sgftree.lastnode,
+ gameinfo->to_move);
+ break;
+
+ case COMMENT:
+ printf("\nEnter comment. Press ENTER when ready.\n");
+ fgets(line, 80, stdin);
+ sgftreeAddComment(&sgftree, line);
+ break;
+
+ case SCORE:
+ showscore = !showscore;
+ if (!showscore)
+ current_score_estimate = NO_SCORE;
+ break;
+
+ case CMD_DEAD:
+ silent_examine_position(FULL_EXAMINE_DRAGONS);
+ showdead = !showdead;
+ break;
+
+ case CMD_CAPTURE:
+ strtok(command, " ");
+ showcapture(strtok(NULL, " "));
+ break;
+
+ case CMD_DEFEND:
+ strtok(command, " ");
+ showdefense(strtok(NULL, " "));
+ break;
+
+ case CMD_SHOWMOYO:
+ tmp = printmoyo;
+ printmoyo = PRINTMOYO_MOYO;
+ silent_examine_position(EXAMINE_DRAGONS);
+ printmoyo = tmp;
+ break;
+
+ case CMD_SHOWTERRI:
+ tmp = printmoyo;
+ printmoyo = PRINTMOYO_TERRITORY;
+ silent_examine_position(EXAMINE_DRAGONS);
+ printmoyo = tmp;
+ break;
+
+ case CMD_SHOWAREA:
+ tmp = printmoyo;
+ printmoyo = PRINTMOYO_AREA;
+ silent_examine_position(EXAMINE_DRAGONS);
+ printmoyo = tmp;
+ break;
+
+ case CMD_SHOWDRAGONS:
+ silent_examine_position(EXAMINE_DRAGONS);
+ showboard(1);
+ break;
+
+ case CMD_GOTO:
+ strtok(command, " ");
+ twoplayer_goto(gameinfo, strtok(NULL, " "));
+ break;
+
+ case CMD_SAVE:
+ strtok(command, " ");
+ tmpstring = strtok(NULL, " ");
+ if (tmpstring) {
+ /* discard newline */
+ tmpstring[strlen(tmpstring) - 1] = 0;
+ /* make sure we are saving proper handicap */
+ init_sgf(gameinfo);
+ writesgf(sgftree.root, tmpstring);
+ printf("You may resume the game");
+ printf(" with -l %s --mode twoplayer\n", tmpstring);
+ printf("or load %s\n", tmpstring);
+ } else
+ printf("Please specify filename\n");
+ break;
+
+ case CMD_LOAD:
+ strtok(command, " ");
+ tmpstring = strtok(NULL, " ");
+ if (tmpstring) {
+ /* discard newline */
+ tmpstring[strlen(tmpstring) - 1] = 0;
+ if (!sgftree_readfile(&sgftree, tmpstring)) {
+ fprintf(stderr, "Cannot open or parse '%s'\n", tmpstring);
+ break;
+ }
+ /* to avoid changing handicap etc. */
+ if (gameinfo_play_sgftree(gameinfo, &sgftree, NULL) == EMPTY)
+ fprintf(stderr, "Cannot load '%s'\n", tmpstring);
+ else {
+ sgf_initialized = 1;
+ sgfOverwritePropertyInt(sgftree.root, "HA", gameinfo->handicap);
+ }
+ } else
+ printf("Please specify a filename\n");
+ break;
+
+ case CMD_LISTDRAGONS:
+ silent_examine_position(EXAMINE_DRAGONS);
+ show_dragons();
+ break;
+
+ default:
+ printf("\nInvalid command: %s", command);
+ break;
+ }
+
+ if (passes >= 2)
+ state = twoplayer_endgame(gameinfo, 0);
+ }
+#if READLINE
+ free(line_ptr);
+#endif
+ }
+
+ sgffile_output(&sgftree);
+ passes = 0;
+
+ /* Play a different game next time. */
+ update_random_seed();
+
+ /* Free the sgf tree and prepare for a new game. */
+ sgfFreeNode(sgftree.root);
+ sgftree_clear(&sgftree);
+ sgftreeCreateHeaderNode(&sgftree, board_size, komi, gameinfo->handicap);
+ sgf_initialized = 0;
+
+ gameinfo_clear(gameinfo);
+ }
+}
+
+/* Communicates with user after a game has ended. */
+static int
+twoplayer_endgame(Gameinfo* gameinfo, int reason)
+{
+ char line[80];
+ char* line_ptr;
+ char* command;
+ char* tmpstring;
+ int state = 0;
+
+ if (reason == 0) { /* Two passes, game is over. */
+ who_wins(gameinfo->computer_player, stdout);
+ printf("\nIf you disagree, we may count the game together.\n");
+
+ sgftreeWriteResult(&sgftree, (white_score + black_score) / 2.0, 1);
+ } else {
+ int color = OTHER_COLOR(gameinfo->to_move);
+
+ if (reason == 1) /* Our opponent has resigned. */
+ printf("GNU Go wins by resignation.\n");
+ else /* We have resigned. */
+ printf("You win by resignation.\n");
+
+ printf("Result: %c+Resign\n\n", color == WHITE ? 'W' : 'B');
+ sgftreeWriteResult(&sgftree, color == WHITE ? 1000.0 : -1000.0, 1);
+ }
+
+ while (state == 0) {
+ printf("You may optionally save the game as an SGF file.\n\n");
+ printf("Type \"save <filename>\" to save,\n");
+ if (reason == 0)
+ printf(" \"count\" to recount,\n");
+ else if (reason == 2)
+ printf(" \"continue\" to decline resignation and continue the game,\n");
+ printf(" \"quit\" to quit\n");
+ printf(" or \"game\" to play again\n");
+
+ line_ptr = line;
+ if (!fgets(line, 80, stdin))
+ break;
+
+ command = strtok(line_ptr, "");
+ switch (get_command(command)) {
+ case CMD_SAVE:
+ strtok(command, " ");
+ tmpstring = strtok(NULL, " ");
+ if (tmpstring) {
+ /* discard newline */
+ tmpstring[strlen(tmpstring) - 1] = 0;
+ init_sgf(gameinfo);
+ writesgf(sgftree.root, tmpstring);
+ } else
+ printf("Please specify filename\n");
+ break;
+
+ case COUNT:
+ if (reason == 0)
+ twoplayer_count(gameinfo);
+ break;
+
+ case CONTINUE:
+ state = -1;
+ break;
+
+ case NEW:
+ state = 1;
+ break;
+
+ case QUIT:
+ state = 2;
+ break;
+
+ default:
+ state = 0;
+ }
+ }
+
+ return state;
+}
+
+/* twoplayer_count() scores the game.
+ */
+static void
+twoplayer_count(Gameinfo* gameinfo)
+{
+ char line[12];
+ int done = 0;
+ int i;
+ int xyzzy = 1;
+
+ printf("\nGame over. Let's count!.\n");
+ showdead = 1;
+ twoplayer_showboard();
+ while (!done) {
+ printf("Dead stones are marked with small letters (x,o).\n");
+ printf("\nIf you don't agree, enter the location of a group\n");
+ printf("to toggle its state or \"done\".\n");
+
+ if (!fgets(line, 12, stdin))
+ return; /* EOF or some error */
+
+ for (i = 0; i < 12; i++)
+ line[i] = tolower((int)line[i]);
+ if (!strncmp(line, "done", 4))
+ done = 1;
+ else if (!strncmp(line, "quit", 4))
+ return;
+ else if (!strncmp(line, "xyzzy", 5)) {
+ if (xyzzy) {
+ printf("\nYou are in a debris room filled with stuff washed in from the\n");
+ printf("surface. A low wide passage with cobbles becomes plugged\n");
+ printf("with mud and debris here, but an awkward canyon leads\n");
+ printf("upward and west. A note on the wall says:\n");
+ printf(" Magic Word \"XYZZY\"\n\n");
+ xyzzy = 0;
+ } else {
+ printf("You are inside a building, a well house for a large spring.\n\n");
+ xyzzy = 1;
+ }
+ } else if (!strncmp(line, "help", 4)) {
+ printf("\nIf there are dead stones on the board I will remove them.\n");
+ printf("You must tell me where they are. Type the coordinates of a\n");
+ printf("dead group, or type \"done\"\n");
+ } else if (!strncmp(line, "undo", 4)) {
+ printf("UNDO not allowed anymore. The status of the stones now\n");
+ printf("toggles after entering the location of it.\n");
+ twoplayer_showboard();
+ } else {
+ int pos = string_to_location(board_size, line);
+ if (pos == NO_MOVE || board[pos] == EMPTY)
+ printf("\ninvalid!\n");
+ else {
+ enum dragon_status status = dragon_status(pos);
+ status = (status == DEAD) ? ALIVE : DEAD;
+ change_dragon_status(pos, status);
+ twoplayer_showboard();
+ }
+ }
+ }
+ who_wins(gameinfo->computer_player, stdout);
+}
+
+static void
+showcapture(char* line)
+{
+ int str;
+ int move;
+
+ gg_assert(line);
+ str = string_to_location(board_size, line);
+ if (str == NO_MOVE || board[str] == EMPTY) {
+ printf("\ninvalid point!\n");
+ return;
+ }
+
+ if (attack(str, &move))
+ mprintf("\nSuccessful attack of %1m at %1m\n", str, move);
+ else
+ mprintf("\n%1m cannot be attacked\n", str);
+}
+
+static void
+showdefense(char* line)
+{
+ int str;
+ int move;
+
+ gg_assert(line);
+ str = string_to_location(board_size, line);
+ if (str == NO_MOVE || board[str] == EMPTY) {
+ printf("\ninvalid point!\n");
+ return;
+ }
+
+ if (attack(str, NULL)) {
+ if (find_defense(str, &move))
+ mprintf("\nSuccessful defense of %1m at %1m\n", str, move);
+ else
+ mprintf("\n%1m cannot be defended\n", str);
+ } else
+ mprintf("\nThere is no need to defend %1m\n", str);
+}
+
+static void
+twoplayer_goto(Gameinfo* gameinfo, char* line)
+{
+ const char* movenumber = line;
+
+ if (!line)
+ return;
+
+ if (!strncmp(line, "last", 4))
+ movenumber = "9999";
+ else if (!strncmp(line, "first", 4))
+ movenumber = "1";
+
+ printf("goto %s\n", movenumber);
+ gameinfo_play_sgftree(gameinfo, &sgftree, movenumber);
+}
+
+static void
+twoplayer_free_handicap(Gameinfo* gameinfo, char* handicap_string)
+{
+ int handi;
+ int i;
+ char line[80];
+ int stones[MAX_BOARD * MAX_BOARD];
+
+ if (sscanf(handicap_string, "%d", &handi) == 1) {
+ /* GNU Go is to place handicap */
+ if (handi < 0 || handi == 1) {
+ printf("\nInvalid command syntax!\n");
+ return;
+ }
+
+ clear_board();
+ handi = place_free_handicap(handi);
+ printf("\nPlaced %d stones of free handicap.\n", handi);
+ } else { /* User is to place handicap */
+ clear_board();
+ handi = 0;
+
+ while (1) {
+ twoplayer_showboard();
+ printf("\nType in coordinates of next handicap stone, or one of the following commands:\n");
+ printf(" undo take back the last stone placed\n");
+ printf(" clear remove all the stones placed so far\n");
+ printf(" done finish placing handicap\n\n");
+ printf("You have placed %d handicap stone(s) so far.\n\n", handi);
+
+ if (!fgets(line, 80, stdin))
+ return; /* EOF or some error */
+ for (i = 0; i < 80; i++)
+ line[i] = tolower((int)line[i]);
+
+ if (!strncmp(line, "undo", 4)) {
+ if (!handi)
+ printf("\nNothing to undo.\n");
+ else {
+ remove_stone(stones[--handi]);
+ gprintf("\nRemoved the stone at %m.\n", I(stones[handi]),
+ J(stones[handi]));
+ }
+ } else if (!strncmp(line, "clear", 5)) {
+ clear_board();
+ handi = 0;
+ } else if (!strncmp(line, "done", 4)) {
+ if (handi == 1) /* Don't bother with checks later */
+ printf("\nHandicap cannot be one stone. Either add "
+ "some more, or delete the only stone.\n");
+ else
+ break;
+ } else {
+ int pos = string_to_location(board_size, line);
+ if (pos != NO_MOVE) {
+ if (board[pos] != EMPTY)
+ printf("\nThere's already a stone there.\n");
+ else {
+ add_stone(pos, BLACK);
+ stones[handi++] = pos;
+ }
+ } else
+ printf("\nInvalid command: %s", line);
+ }
+ }
+ }
+ gameinfo->handicap = handi;
+ gameinfo->to_move = (handi ? WHITE : BLACK);
+}
+
+/*
+ * Local Variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
projects / sgk-go / commitdiff