dab/box.cc

   1 /*      $NetBSD: box.cc,v 1.2 2005/08/09 02:38:32 christos 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  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *        This product includes software developed by the NetBSD
  21  *        Foundation, Inc. and its contributors.
  22  * 4. Neither the name of The NetBSD Foundation nor the names of its
  23  *    contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  36  * POSSIBILITY OF SUCH DAMAGE.
  37  */
  38
  39 /*
  40  * box.C: Box computations
  41  */
  42 #include "defs.h"
  43 RCSID("$NetBSD: box.cc,v 1.2 2005/08/09 02:38:32 christos Exp $")
  44
  45 #include "box.h"
  46 #include "board.h"
  47 #include "gamescreen.h"
  48 #include <curses.h>
  49
  50 const POINT BOX::edges[BOX::last] =
  51     { { 0, -1 }, { 0, 1 }, { -1, 0 }, { 1, 0 } };
  52 const POINT BOX::corners[BOX::last] =
  53     { { -1, -1 }, { -1, 1 }, { 1, -1 }, { 1, 1 } };
  54 const int  BOX::syms[BOX::last] =
  55     { GAMESCREEN::GS_HLINE, GAMESCREEN::GS_HLINE,
  56       GAMESCREEN::GS_VLINE, GAMESCREEN::GS_VLINE };
  57
  58 BOX::BOX(size_t py, size_t px, BOARD& b) :
  59     _b(b)
  60 {
  61     _centery = py * 2 + 1;
  62     _centerx = px * 2 + 1;
  63 }
  64
  65 void BOX::addcorner(size_t y, size_t x)
  66 {
  67     char sym;
  68     _b.getScrn()->moveto(y, x);
  69     if (x == 0) {
  70         if (y == 0)
  71             sym = GAMESCREEN::GS_ULCORNER;
  72         else if (y == _b.ty() - 1)
  73             sym = GAMESCREEN::GS_LLCORNER;
  74         else
  75             sym = GAMESCREEN::GS_LTEE;
  76     } else if (x == _b.tx() - 1) {
  77         if (y == 0)
  78             sym = GAMESCREEN::GS_URCORNER;
  79         else if (y == _b.ty() - 1)
  80             sym = GAMESCREEN::GS_LRCORNER;
  81         else
  82             sym = GAMESCREEN::GS_RTEE;
  83     } else if (y == 0)
  84         sym = GAMESCREEN::GS_TTEE;
  85     else if (y == _b.ty() - 1)
  86         sym = GAMESCREEN::GS_BTEE;
  87     else
  88         sym = GAMESCREEN::GS_PLUS;
  89
  90     _b.getScrn()->addedge(sym);
  91 }
  92
  93 // Paint a box
  94 void BOX::paint(void)
  95 {
  96     int e;
  97     if (_b.getScrn() == NULL)
  98         return;
  99
 100     _b.getScrn()->moveto(_centery, _centerx);
 101     _b.getScrn()->addsym(name());
 102
 103     for (e = BOX::first; e < BOX::last; e++) {
 104         addcorner(_centery + corners[e].y, _centerx + corners[e].x);
 105         _b.getScrn()->moveto(_centery + edges[e].y, _centerx + edges[e].x);
 106         _b.getScrn()->addedge(edge(static_cast<EDGE>(e)));
 107     }
 108     _b.getScrn()->redraw();
 109 }
 110
 111 // Return the name
 112 int& BOX::name(void)
 113 {
 114     return _b.data(_centery, _centerx);
 115 }
 116
 117 // Set an edge
 118 void BOX::set(int e)
 119 {
 120     _b.data(_centery + edges[e].y, _centerx + edges[e].x) = syms[e];
 121 }
 122
 123 // Clear an edge
 124 void BOX::clr(int e)
 125 {
 126     _b.data(_centery + edges[e].y, _centerx + edges[e].x) = ' ';
 127 }
 128
 129 // Test an edge
 130 int BOX::isset(int e) const
 131 {
 132     return _b.data(_centery + edges[e].y, _centerx + edges[e].x) != ' ';
 133 }
 134
 135 // Return the edge
 136 int& BOX::edge(int e)
 137 {
 138     return _b.data(_centery + edges[e].y, _centerx + edges[e].x);
 139 }
 140
 141 // Count the number of edges set in the box
 142 int BOX::count(void) const
 143 {
 144     int cnt = 0;
 145
 146     for (int e = BOX::first; e < BOX::last; e++)
 147         cnt += isset(static_cast<EDGE>(e));
 148     return cnt;
 149 }
 150
 151 // Clear the box
 152 void BOX::reset(void)
 153 {
 154     for (int e = BOX::first; e < BOX::last; e++)
 155         clr(static_cast<EDGE>(e));
 156     name() = ' ';
 157 }