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git-svn-id: file:///srv/svn/joey/trunk/src/packages/bsdgames@10080 a4a2c43b-8ac3-0310-8836-e0e880c912e2
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joey
260
dab/board.cc
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260
dab/board.cc
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/* $NetBSD: board.cc,v 1.1 2003/12/27 01:16:55 christos Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* board.C: Board manipulations
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*/
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#include "defs.h"
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RCSID("$NetBSD: board.cc,v 1.1 2003/12/27 01:16:55 christos Exp $")
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include "board.h"
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#include "gamescreen.h"
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#include "box.h"
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#include "player.h"
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BOARD::BOARD(size_t y, size_t x, GAMESCREEN* scrn) :
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_ny(y),
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_nx(x),
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_scrn(scrn)
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{
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_ty = 2 * _ny + 1;
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_tx = 2 * _nx + 1;
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_b = new int*[_ty];
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for (y = 0; y < _ty; y++)
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_b[y] = new int[_tx];
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init();
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}
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BOARD::BOARD(const BOARD& b) :
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_ty(b._ty),
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_tx(b._tx),
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_ny(b._ny),
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_nx(b._nx),
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_scrn(NULL)
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{
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_b = new int*[_ty];
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for (size_t y = 0; y < _ty; y++) {
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_b[y] = new int[_tx];
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(void) memcpy(_b[y], b._b[y], _tx * sizeof(int));
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}
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}
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BOARD::~BOARD()
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{
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size_t y;
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for (y = 0; y < _ty; y++)
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delete[] _b[y];
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delete[] _b;
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}
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// Clear all boxes and reset state for a new game
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void BOARD::init(void)
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{
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size_t x, y;
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for (y = 0; y < _ny; y++)
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for (x = 0; x < _nx; x++) {
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BOX box(y, x, *this);
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box.reset();
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}
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}
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/*
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* Make a move for player with initial 'c', adding an edge at box(x, y)
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* and the specified direction.
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* returns:
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* -1: Invalid move
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* n: Number of closures n E [0..2]
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*/
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int BOARD::domove(size_t y, size_t x, int dir, char c)
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{
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int closed = 0;
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// Check if out of bounds
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if (!bounds(y, x))
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return -1;
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BOX box1(y, x, *this);
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// Check if the edge is already there
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if (box1.isset(dir))
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return -1;
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box1.set(dir);
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if (box1.count() == 4) {
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// New box; name it and count it
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box1.name() = c;
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closed++;
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}
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box1.paint();
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// Check other box
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x += BOX::edges[dir].x;
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y += BOX::edges[dir].y;
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if (bounds(y, x)) {
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BOX box2(y, x, *this);
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if (box2.count() == 4) {
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box2.name() = c;
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box2.paint();
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closed++;
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}
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}
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return closed;
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}
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// Return true if the board is full
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int BOARD::full(void) const
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{
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for (size_t y = 0; y < _ny; y++)
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for (size_t x = 0; x < _nx; x++) {
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BOX box(y, x, (BOARD&) *this);
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if (box.count() != 4)
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return 0;
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}
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return 1;
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}
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// Return if the coordinates are within bounds; we don't check for < 0,
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// since size_t is unsigned
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int BOARD::bounds(size_t y, size_t x) const
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{
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return x < _nx && y < _ny;
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}
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// Paint all boxes, effectively redrawing the board
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void BOARD::paint(void) const
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{
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for (size_t y = 0; y < _ny; y++)
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for (size_t x = 0; x < _nx; x++) {
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BOX box(y, x, (BOARD&) *this);
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box.paint();
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}
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}
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// Clear the screen
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void BOARD::clean(void) const
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{
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if (!_scrn)
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return;
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_scrn->clean();
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}
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// Move cursor to x, y
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void BOARD::setpos(size_t y, size_t x) const
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{
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if (!_scrn)
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return;
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_scrn->moveto(y, x);
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_scrn->redraw();
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}
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// Return character indicating move
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int BOARD::getmove(void) const
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{
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if (!_scrn)
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return 'q';
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_scrn->redraw();
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return _scrn->getinput();
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}
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// Ring the bell
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void BOARD::bell(void) const
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{
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if (!_scrn)
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return;
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_scrn->bell();
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}
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// Post the score in the current game for player i
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void BOARD::score(size_t i, const PLAYER& p)
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{
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if (_scrn == NULL)
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return;
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_scrn->score(i, p);
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}
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// Post the number of games won for player i
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void BOARD::games(size_t i, const PLAYER& p)
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{
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if (_scrn == NULL)
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return;
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_scrn->games(i, p);
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}
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// Post the total score for player i
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void BOARD::total(size_t i, const PLAYER& p)
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{
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if (_scrn == NULL)
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return;
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_scrn->total(i, p);
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}
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// Post the total score for player i
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void BOARD::ties(const PLAYER& p)
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{
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if (_scrn == NULL)
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return;
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_scrn->ties(p);
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}
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// Internal algorithm error; post and abort
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void BOARD::abort(const char* s, ...) const
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{
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for (size_t i = 0; i < _ny; i++)
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fprintf(stderr, "\n");
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va_list ap;
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fprintf(stderr, "Algorithm internal error: ");
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va_start(ap, s);
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vfprintf(stderr, s, ap);
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va_end(ap);
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fprintf(stderr, "\n");
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::abort();
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}
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