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Diffstat (limited to 'dab/board.cc')
| -rw-r--r-- | dab/board.cc | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/dab/board.cc b/dab/board.cc new file mode 100644 index 00000000..6cd3e957 --- /dev/null +++ b/dab/board.cc @@ -0,0 +1,260 @@ +/* $NetBSD: board.cc,v 1.1 2003/12/27 01:16:55 christos Exp $ */ + +/*- + * Copyright (c) 2003 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Christos Zoulas. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * board.C: Board manipulations + */ +#include "defs.h" +RCSID("$NetBSD: board.cc,v 1.1 2003/12/27 01:16:55 christos Exp $") + +#include <stdio.h> +#include <string.h> +#include <stdarg.h> +#include "board.h" +#include "gamescreen.h" +#include "box.h" +#include "player.h" + +BOARD::BOARD(size_t y, size_t x, GAMESCREEN* scrn) : + _ny(y), + _nx(x), + _scrn(scrn) +{ + _ty = 2 * _ny + 1; + _tx = 2 * _nx + 1; + + _b = new int*[_ty]; + + for (y = 0; y < _ty; y++) + _b[y] = new int[_tx]; + + init(); +} + +BOARD::BOARD(const BOARD& b) : + _ty(b._ty), + _tx(b._tx), + _ny(b._ny), + _nx(b._nx), + _scrn(NULL) +{ + _b = new int*[_ty]; + + for (size_t y = 0; y < _ty; y++) { + _b[y] = new int[_tx]; + (void) memcpy(_b[y], b._b[y], _tx * sizeof(int)); + } +} + +BOARD::~BOARD() +{ + size_t y; + + for (y = 0; y < _ty; y++) + delete[] _b[y]; + + delete[] _b; +} + +// Clear all boxes and reset state for a new game +void BOARD::init(void) +{ + size_t x, y; + + for (y = 0; y < _ny; y++) + for (x = 0; x < _nx; x++) { + BOX box(y, x, *this); + box.reset(); + } +} + +/* + * Make a move for player with initial 'c', adding an edge at box(x, y) + * and the specified direction. + * returns: + * -1: Invalid move + * n: Number of closures n E [0..2] + */ +int BOARD::domove(size_t y, size_t x, int dir, char c) +{ + int closed = 0; + + // Check if out of bounds + if (!bounds(y, x)) + return -1; + + BOX box1(y, x, *this); + + // Check if the edge is already there + if (box1.isset(dir)) + return -1; + + box1.set(dir); + + if (box1.count() == 4) { + // New box; name it and count it + box1.name() = c; + closed++; + } + + box1.paint(); + + // Check other box + x += BOX::edges[dir].x; + y += BOX::edges[dir].y; + + if (bounds(y, x)) { + BOX box2(y, x, *this); + if (box2.count() == 4) { + box2.name() = c; + box2.paint(); + closed++; + } + } + return closed; +} + +// Return true if the board is full +int BOARD::full(void) const +{ + for (size_t y = 0; y < _ny; y++) + for (size_t x = 0; x < _nx; x++) { + BOX box(y, x, (BOARD&) *this); + if (box.count() != 4) + return 0; + } + return 1; +} + +// Return if the coordinates are within bounds; we don't check for < 0, +// since size_t is unsigned +int BOARD::bounds(size_t y, size_t x) const +{ + return x < _nx && y < _ny; +} + +// Paint all boxes, effectively redrawing the board +void BOARD::paint(void) const +{ + for (size_t y = 0; y < _ny; y++) + for (size_t x = 0; x < _nx; x++) { + BOX box(y, x, (BOARD&) *this); + box.paint(); + } +} + +// Clear the screen +void BOARD::clean(void) const +{ + if (!_scrn) + return; + _scrn->clean(); +} + +// Move cursor to x, y +void BOARD::setpos(size_t y, size_t x) const +{ + if (!_scrn) + return; + _scrn->moveto(y, x); + _scrn->redraw(); +} + +// Return character indicating move +int BOARD::getmove(void) const +{ + if (!_scrn) + return 'q'; + _scrn->redraw(); + return _scrn->getinput(); +} + +// Ring the bell +void BOARD::bell(void) const +{ + if (!_scrn) + return; + _scrn->bell(); +} + +// Post the score in the current game for player i +void BOARD::score(size_t i, const PLAYER& p) +{ + if (_scrn == NULL) + return; + _scrn->score(i, p); +} + +// Post the number of games won for player i +void BOARD::games(size_t i, const PLAYER& p) +{ + if (_scrn == NULL) + return; + _scrn->games(i, p); +} + +// Post the total score for player i +void BOARD::total(size_t i, const PLAYER& p) +{ + if (_scrn == NULL) + return; + _scrn->total(i, p); +} + +// Post the total score for player i +void BOARD::ties(const PLAYER& p) +{ + if (_scrn == NULL) + return; + _scrn->ties(p); +} + +// Internal algorithm error; post and abort +void BOARD::abort(const char* s, ...) const +{ + for (size_t i = 0; i < _ny; i++) + fprintf(stderr, "\n"); + + va_list ap; + fprintf(stderr, "Algorithm internal error: "); + va_start(ap, s); + vfprintf(stderr, s, ap); + va_end(ap); + fprintf(stderr, "\n"); + ::abort(); +} |