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Annotation of src/games/dab/box.cc, Revision 1.3

1.3     ! martin      1: /*     $NetBSD: box.cc,v 1.2 2005/08/09 02:38:32 christos Exp $        */
1.1       christos    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.C: Box computations
                     34:  */
                     35: #include "defs.h"
1.3     ! martin     36: RCSID("$NetBSD: box.cc,v 1.2 2005/08/09 02:38:32 christos Exp $")
1.1       christos   37:
                     38: #include "box.h"
                     39: #include "board.h"
                     40: #include "gamescreen.h"
                     41: #include <curses.h>
                     42:
                     43: const POINT BOX::edges[BOX::last] =
                     44:     { { 0, -1 }, { 0, 1 }, { -1, 0 }, { 1, 0 } };
                     45: const POINT BOX::corners[BOX::last] =
                     46:     { { -1, -1 }, { -1, 1 }, { 1, -1 }, { 1, 1 } };
                     47: const int  BOX::syms[BOX::last] =
                     48:     { GAMESCREEN::GS_HLINE, GAMESCREEN::GS_HLINE,
                     49:       GAMESCREEN::GS_VLINE, GAMESCREEN::GS_VLINE };
                     50:
                     51: BOX::BOX(size_t py, size_t px, BOARD& b) :
                     52:     _b(b)
                     53: {
                     54:     _centery = py * 2 + 1;
                     55:     _centerx = px * 2 + 1;
                     56: }
                     57:
                     58: void BOX::addcorner(size_t y, size_t x)
                     59: {
                     60:     char sym;
                     61:     _b.getScrn()->moveto(y, x);
                     62:     if (x == 0) {
                     63:        if (y == 0)
                     64:            sym = GAMESCREEN::GS_ULCORNER;
                     65:        else if (y == _b.ty() - 1)
                     66:            sym = GAMESCREEN::GS_LLCORNER;
                     67:        else
                     68:            sym = GAMESCREEN::GS_LTEE;
                     69:     } else if (x == _b.tx() - 1) {
                     70:        if (y == 0)
                     71:            sym = GAMESCREEN::GS_URCORNER;
                     72:        else if (y == _b.ty() - 1)
                     73:            sym = GAMESCREEN::GS_LRCORNER;
                     74:        else
                     75:            sym = GAMESCREEN::GS_RTEE;
                     76:     } else if (y == 0)
                     77:        sym = GAMESCREEN::GS_TTEE;
                     78:     else if (y == _b.ty() - 1)
                     79:        sym = GAMESCREEN::GS_BTEE;
                     80:     else
                     81:        sym = GAMESCREEN::GS_PLUS;
                     82:
                     83:     _b.getScrn()->addedge(sym);
                     84: }
                     85:
                     86: // Paint a box
                     87: void BOX::paint(void)
                     88: {
                     89:     int e;
                     90:     if (_b.getScrn() == NULL)
                     91:        return;
                     92:
                     93:     _b.getScrn()->moveto(_centery, _centerx);
                     94:     _b.getScrn()->addsym(name());
                     95:
                     96:     for (e = BOX::first; e < BOX::last; e++) {
                     97:        addcorner(_centery + corners[e].y, _centerx + corners[e].x);
                     98:        _b.getScrn()->moveto(_centery + edges[e].y, _centerx + edges[e].x);
1.2       christos   99:        _b.getScrn()->addedge(edge(static_cast<EDGE>(e)));
1.1       christos  100:     }
                    101:     _b.getScrn()->redraw();
                    102: }
                    103:
                    104: // Return the name
                    105: int& BOX::name(void)
                    106: {
                    107:     return _b.data(_centery, _centerx);
                    108: }
                    109:
                    110: // Set an edge
                    111: void BOX::set(int e)
                    112: {
                    113:     _b.data(_centery + edges[e].y, _centerx + edges[e].x) = syms[e];
                    114: }
                    115:
                    116: // Clear an edge
                    117: void BOX::clr(int e)
                    118: {
                    119:     _b.data(_centery + edges[e].y, _centerx + edges[e].x) = ' ';
                    120: }
                    121:
                    122: // Test an edge
                    123: int BOX::isset(int e) const
                    124: {
                    125:     return _b.data(_centery + edges[e].y, _centerx + edges[e].x) != ' ';
                    126: }
                    127:
                    128: // Return the edge
                    129: int& BOX::edge(int e)
                    130: {
                    131:     return _b.data(_centery + edges[e].y, _centerx + edges[e].x);
                    132: }
                    133:
                    134: // Count the number of edges set in the box
                    135: int BOX::count(void) const
                    136: {
                    137:     int cnt = 0;
                    138:
                    139:     for (int e = BOX::first; e < BOX::last; e++)
1.2       christos  140:        cnt += isset(static_cast<EDGE>(e));
1.1       christos  141:     return cnt;
                    142: }
                    143:
                    144: // Clear the box
                    145: void BOX::reset(void)
                    146: {
                    147:     for (int e = BOX::first; e < BOX::last; e++)
1.2       christos  148:        clr(static_cast<EDGE>(e));
1.1       christos  149:     name() = ' ';
                    150: }

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