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/* This file is a part of gtkboard, a board games system.
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Copyright (C) 2003, Arvind Narayanan <arvindn@users.sourceforge.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111 USA
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#include "../pixmaps/chess.xpm"
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#include "../pixmaps/misc.xpm"
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#define EIGHTQUEENS_CELL_SIZE 54
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#define EIGHTQUEENS_NUM_PIECES 2
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#define EIGHTQUEENS_BOARD_WID 8
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#define EIGHTQUEENS_BOARD_HEIT 8
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#define EIGHTQUEENS_EMPTY 0
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#define EIGHTQUEENS_QUEEN 1
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#define EIGHTQUEENS_CONTROLLED 2
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#define abs(x) ((x) < 0 ? -(x) : (x))
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#define ATTACKS(i, j, x, y) ((i)==(x) || (j)==(y) || abs((i)-(x)) == abs((j)-(y)))
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char eightqueens_colors[6] = {200, 200, 160, 200, 200, 160};
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void eightqueens_init ();
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char ** eightqueens_pixmaps [] =
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Game Eightqueens = { EIGHTQUEENS_CELL_SIZE,
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EIGHTQUEENS_BOARD_WID, EIGHTQUEENS_BOARD_HEIT,
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EIGHTQUEENS_NUM_PIECES,
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eightqueens_colors, NULL, eightqueens_pixmaps, "Eight Queens Puzzle",
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SCORE_FIELD eightqueens_score_fields[] = {SCORE_FIELD_RANK, SCORE_FIELD_USER, SCORE_FIELD_TIME, SCORE_FIELD_DATE, SCORE_FIELD_NONE};
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char *eightqueens_score_field_names[] = {"Rank", "User", "Time", "Date", NULL};
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static int eightqueens_getmove (Pos *, int, int, GtkboardEventType, Player, byte **, int **);
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static ResultType eightqueens_who_won (Pos *, Player, char **);
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void eightqueens_init ()
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game_single_player = 1;
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game_getmove = eightqueens_getmove;
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game_who_won = eightqueens_who_won;
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game_scorecmp = game_scorecmp_def_time;
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game_score_fields = eightqueens_score_fields;
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game_score_field_names = eightqueens_score_field_names;
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game_draw_cell_boundaries = TRUE;
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game_doc_about_status = STATUS_COMPLETE;
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"Single player game\n"
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"Status: Fully implemented\n"
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"URL: "GAME_DEFAULT_URL("eightqueens");
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"Place 8 non-attacking queens on the chessboard";
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ResultType eightqueens_who_won (Pos *pos, Player to_play, char **commp)
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static char comment[32];
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for (i=0, qcount = 0; i<board_wid*board_heit; i++)
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qcount += (pos->board [i] == EIGHTQUEENS_QUEEN ? 1 : 0);
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snprintf (*commp = comment, 32, "Queens: %d", qcount);
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return qcount == 8 ? RESULT_WON : RESULT_NOTYET;
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static int num_attacks (byte *board, int x, int y)
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for (i=0; i<board_wid; i++)
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for (j=0; j<board_heit; j++)
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if (!(i==x && j==y) && board [j * board_wid + i] == EIGHTQUEENS_QUEEN)
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count += (ATTACKS (i, j, x, y) ? 1 : 0);
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int eightqueens_getmove (Pos *pos, int x, int y, GtkboardEventType type, Player player, byte **movp, int ** rmovep)
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static byte move[256];
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if (type != GTKBOARD_BUTTON_RELEASE) return 0;
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if (pos->board[y * board_wid + x] == EIGHTQUEENS_CONTROLLED) return -1;
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if (pos->board[y * board_wid + x] == EIGHTQUEENS_QUEEN)
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*mp++ = x, *mp++ = y, *mp++ = EIGHTQUEENS_EMPTY;
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for (i=0; i<board_wid; i++)
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for (j=0; j<board_heit; j++)
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if (pos->board[j * board_wid + i] == EIGHTQUEENS_CONTROLLED
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&& ATTACKS(i, j, x, y)
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&& num_attacks (pos->board, i, j) == 1)
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*mp++ = i, *mp++ = j, *mp++ = EIGHTQUEENS_EMPTY;
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*mp++ = x, *mp++ = y, *mp++ = EIGHTQUEENS_QUEEN;
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for (i=0; i<board_wid; i++)
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for (j=0; j<board_heit; j++)
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if (!(i==x && j==y) && pos->board[j * board_wid + i] == EIGHTQUEENS_EMPTY
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&& ATTACKS (i, j, x, y))
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*mp++ = i, *mp++ = j, *mp++ = EIGHTQUEENS_CONTROLLED;
added
removed
.pc/debian-changes-0.11pre0+cvs.2003.11.02-2/src/eightqueens.c
