dab/player.cc

   1 /*      $NetBSD: player.cc,v 1.2 2008/04/28 20:22:54 martin Exp $        */
   2
   3 /*-
   4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * player.C: Player base class
  34  */
  35
  36 #include "defs.h"
  37 RCSID("$NetBSD: player.cc,v 1.2 2008/04/28 20:22:54 martin Exp $")
  38
  39 #include "board.h"
  40 #include "player.h"
  41
  42 PLAYER::PLAYER(char who) :
  43     _who(who),
  44     _score(0),
  45     _total(0),
  46     _games(0),
  47     _ties(0)
  48 {
  49 }
  50
  51 void PLAYER::init(void)
  52 {
  53     _score = 0;
  54 }
  55
  56 void PLAYER::wl(size_t sc)
  57 {
  58     _total += _score;
  59     _games += sc < _score;
  60     _ties += sc == _score;
  61 }
  62
  63 int PLAYER::domove(BOARD& b)
  64 {
  65     size_t y, x;
  66     int dir;
  67     int score;
  68
  69     for (;;) {
  70         if (b.full())
  71             return 0;
  72
  73         play(b, y, x, dir);
  74
  75         switch (score = b.domove(y, x, dir, _who)) {
  76         case 0:
  77             // No closure
  78             return 1;
  79
  80         case -1:
  81             // Not a valid move
  82             b.bell();
  83             break;
  84
  85         default:
  86             // Closure, play again
  87             _score += score;
  88             break;
  89         }
  90     }
  91 }