1/* $NetBSD: box.cc,v 1.4 2021/12/05 09:22:45 rillig 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 * Box computations 34 */ 35 36#include "defs.h" 37RCSID("$NetBSD: box.cc,v 1.4 2021/12/05 09:22:45 rillig Exp $") 38 39#include "box.h" 40#include "board.h" 41#include "gamescreen.h" 42#include <curses.h> 43 44const POINT BOX::edges[BOX::last] = 45 { { 0, -1 }, { 0, 1 }, { -1, 0 }, { 1, 0 } }; 46const POINT BOX::corners[BOX::last] = 47 { { -1, -1 }, { -1, 1 }, { 1, -1 }, { 1, 1 } }; 48const int BOX::syms[BOX::last] = 49 { GAMESCREEN::GS_HLINE, GAMESCREEN::GS_HLINE, 50 GAMESCREEN::GS_VLINE, GAMESCREEN::GS_VLINE }; 51 52BOX::BOX(size_t py, size_t px, BOARD& b) : 53 _b(b) 54{ 55 _centery = py * 2 + 1; 56 _centerx = px * 2 + 1; 57} 58 59void BOX::addcorner(size_t y, size_t x) 60{ 61 char sym; 62 _b.getScrn()->moveto(y, x); 63 if (x == 0) { 64 if (y == 0) 65 sym = GAMESCREEN::GS_ULCORNER; 66 else if (y == _b.ty() - 1) 67 sym = GAMESCREEN::GS_LLCORNER; 68 else 69 sym = GAMESCREEN::GS_LTEE; 70 } else if (x == _b.tx() - 1) { 71 if (y == 0) 72 sym = GAMESCREEN::GS_URCORNER; 73 else if (y == _b.ty() - 1) 74 sym = GAMESCREEN::GS_LRCORNER; 75 else 76 sym = GAMESCREEN::GS_RTEE; 77 } else if (y == 0) 78 sym = GAMESCREEN::GS_TTEE; 79 else if (y == _b.ty() - 1) 80 sym = GAMESCREEN::GS_BTEE; 81 else 82 sym = GAMESCREEN::GS_PLUS; 83 84 _b.getScrn()->addedge(sym); 85} 86 87// Paint a box 88void BOX::paint(void) 89{ 90 int e; 91 if (_b.getScrn() == NULL) 92 return; 93 94 _b.getScrn()->moveto(_centery, _centerx); 95 _b.getScrn()->addsym(name()); 96 97 for (e = BOX::first; e < BOX::last; e++) { 98 addcorner(_centery + corners[e].y, _centerx + corners[e].x); 99 _b.getScrn()->moveto(_centery + edges[e].y, _centerx + edges[e].x); 100 _b.getScrn()->addedge(edge(static_cast<EDGE>(e))); 101 } 102 _b.getScrn()->redraw(); 103} 104 105// Return the name 106int& BOX::name(void) 107{ 108 return _b.data(_centery, _centerx); 109} 110 111// Set an edge 112void BOX::set(int e) 113{ 114 _b.data(_centery + edges[e].y, _centerx + edges[e].x) = syms[e]; 115} 116 117// Clear an edge 118void BOX::clr(int e) 119{ 120 _b.data(_centery + edges[e].y, _centerx + edges[e].x) = ' '; 121} 122 123// Test an edge 124int BOX::isset(int e) const 125{ 126 return _b.data(_centery + edges[e].y, _centerx + edges[e].x) != ' '; 127} 128 129// Return the edge 130int& BOX::edge(int e) 131{ 132 return _b.data(_centery + edges[e].y, _centerx + edges[e].x); 133} 134 135// Count the number of edges set in the box 136int BOX::count(void) const 137{ 138 int cnt = 0; 139 140 for (int e = BOX::first; e < BOX::last; e++) 141 cnt += isset(static_cast<EDGE>(e)); 142 return cnt; 143} 144 145// Clear the box 146void BOX::reset(void) 147{ 148 for (int e = BOX::first; e < BOX::last; e++) 149 clr(static_cast<EDGE>(e)); 150 name() = ' '; 151} 152