games/dab/human.cc

   1 /*      $NetBSD: human.cc,v 1.2 2005/07/02 15:48:03 jdc 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  * human.C: Human interface for dots, using rogue-like keys.
  34  */
  35 #include "defs.h"
  36 RCSID("$NetBSD: human.cc,v 1.2 2005/07/02 15:48:03 jdc Exp $")
  37
  38 #include "human.h"
  39 #include "board.h"
  40 #include "box.h"
  41 #include "ttyscrn.h"
  42
  43 #define CONTROL(a) ((a) & 037)
  44
  45 extern GAMESCREEN *sc;
  46
  47 HUMAN::HUMAN(const char c) :
  48     PLAYER(c),
  49     _curx(0),
  50     _cury(1)
  51 {
  52 }
  53
  54 void HUMAN::play(const BOARD& b, size_t& y, size_t& x, int& dir)
  55 {
  56     int mv;
  57     b.setpos(_cury, _curx);
  58
  59     for (;;) {
  60         switch (mv = b.getmove()) {
  61         case 'h': case 'H':
  62             _curx -= 2;
  63             break;
  64
  65         case 'l': case 'L':
  66             _curx += 2;
  67             break;
  68
  69         case 'k': case 'K':
  70             _cury -= 2;
  71             break;
  72
  73         case 'j': case 'J':
  74             _cury += 2;
  75             break;
  76
  77         case 'u': case 'U':
  78             _curx += 1;
  79             _cury -= 1;
  80             break;
  81
  82         case 'y': case 'Y':
  83             _curx -= 1;
  84             _cury -= 1;
  85             break;
  86
  87         case 'b': case 'B':
  88             _curx -= 1;
  89             _cury += 1;
  90             break;
  91
  92         case 'n': case 'N':
  93             _curx += 1;
  94             _cury += 1;
  95             break;
  96
  97         case 'q': case 'Q':
  98             // Cleanup
  99             delete sc;
 100             exit(0);
 101
 102         case CONTROL('L'): case CONTROL('R'):
 103             b.clean();
 104             b.paint();
 105             break;
 106
 107         case ' ':
 108             {
 109                 x = _curx / 2;
 110                 y = _cury / 2;
 111
 112                 if (_cury & 1) {
 113                     if (_curx == 0)
 114                         dir = BOX::left;
 115                     else {
 116                         x--;
 117                         dir = BOX::right;
 118                     }
 119                 }
 120
 121                 if (_curx & 1) {
 122                     if (_cury == 0)
 123                         dir = BOX::top;
 124                     else {
 125                         y--;
 126                         dir = BOX::bottom;
 127                     }
 128                 }
 129             }
 130             return;
 131
 132         default:
 133             break;
 134         }
 135
 136         // We add 2 before the comparison to avoid underflow
 137         if ((2 + _curx) - (_curx & 1) < 2)
 138             _curx = (b.nx() * 2) + (_curx & 1);
 139         if (_curx >= (b.nx() * 2) + 1)
 140             _curx = (_curx & 1);
 141
 142         if ((2 + _cury) - (_cury & 1) < 2)
 143             _cury = (b.ny() * 2) + (_cury & 1);
 144         if (_cury >= (b.ny() * 2) + 1)
 145             _cury = (_cury & 1);
 146
 147         b.setpos(_cury, _curx);
 148     }
 149 }