467 lines
8.9 KiB
C
467 lines
8.9 KiB
C
/* $NetBSD: bdisp.c,v 1.55 2022/05/29 17:01:42 rillig Exp $ */
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/*
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* Copyright (c) 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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/* @(#)bdisp.c 8.2 (Berkeley) 5/3/95 */
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__RCSID("$NetBSD: bdisp.c,v 1.55 2022/05/29 17:01:42 rillig Exp $");
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#include <curses.h>
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#include <string.h>
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#include <stdlib.h>
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#include <err.h>
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#include "gomoku.h"
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#define SCRNH 24 /* assume 24 lines for the moment */
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#define SCRNW 80 /* assume 80 chars for the moment */
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static int lastline;
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static const char pcolor[] = "*O.?";
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#define scr_y(by) (1 + (BSZ - 1) - ((by) - 1))
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#define scr_x(bx) (3 + 2 * ((bx) - 1))
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#define TRANSCRIPT_COL (3 + (2 * BSZ - 1) + 3 + 3)
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/*
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* Initialize screen display.
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*/
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void
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cursinit(void)
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{
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if (initscr() == NULL)
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errx(EXIT_FAILURE, "Couldn't initialize screen");
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if (LINES < SCRNH || COLS < SCRNW)
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errx(EXIT_FAILURE, "Screen too small (need %dx%d)",
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SCRNW, SCRNH);
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keypad(stdscr, true);
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nonl();
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noecho();
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cbreak();
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leaveok(stdscr, false);
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mousemask(BUTTON1_CLICKED, NULL);
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}
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/*
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* Restore screen display.
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*/
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void
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cursfini(void)
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{
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move(BSZ + 4, 0);
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clrtoeol();
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refresh();
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echo();
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endwin();
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}
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/*
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* Initialize board display.
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*/
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void
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bdisp_init(void)
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{
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/* top and bottom borders */
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for (int col = 1; col <= BSZ; col++) {
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mvaddch(scr_y(BSZ + 1), scr_x(col), letters[col]);
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mvaddch(scr_y(0), scr_x(col), letters[col]);
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}
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/* left and right edges */
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for (int row = BSZ; row >= 1; row--) {
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mvprintw(scr_y(row), 0, "%2d", row);
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mvprintw(scr_y(row), scr_x(BSZ) + 2, "%d", row);
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}
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bdwho();
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mvaddstr(0, TRANSCRIPT_COL, " # black white");
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lastline = 0;
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bdisp();
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}
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/*
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* Update who is playing whom.
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*/
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void
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bdwho(void)
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{
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int bw = (int)strlen(plyr[BLACK]);
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int ww = (int)strlen(plyr[WHITE]);
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int available = 3 + (1 + scr_x(BSZ) - scr_x(1)) + 3;
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int fixed = (int)sizeof("BLACK/ (*) vs. WHITE/ (O)") - 1;
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int total = fixed + bw + ww;
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int x;
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if (total <= available)
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x = (available - total) / 2;
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else {
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int remaining = available - fixed;
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int half = remaining / 2;
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if (bw <= half)
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ww = remaining - bw;
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else if (ww <= half)
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bw = remaining - ww;
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else
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bw = half, ww = remaining - half;
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x = 0;
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}
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mvhline(BSZ + 2, 0, ' ', available);
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mvprintw(BSZ + 2, x, "BLACK/%.*s (*) vs. WHITE/%.*s (O)",
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bw, plyr[BLACK], ww, plyr[WHITE]);
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}
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static bool
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should_highlight(spot_index s)
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{
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if (game.nmoves > 0 && game.moves[game.nmoves - 1] == s)
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return true;
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if (game.win_spot != 0)
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for (int off = 0; off < 5; off++)
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if (s == game.win_spot + off * dd[game.win_dir])
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return true;
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return false;
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}
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/*
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* Update the board display after a move.
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*/
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void
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bdisp(void)
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{
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struct spotstr *sp;
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for (int row = BSZ + 1; --row > 0; ) {
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for (int col = 1; col <= BSZ; col++) {
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sp = &board[PT(col, row)];
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char c;
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if (debug > 1 && sp->s_occ == EMPTY) {
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if ((sp->s_flags & IFLAGALL) != 0)
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c = '+';
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else if ((sp->s_flags & CFLAGALL) != 0)
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c = '-';
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else
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c = '.';
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} else
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c = pcolor[sp->s_occ];
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move(scr_y(row), scr_x(col));
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if (should_highlight(PT(col, row))) {
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attron(A_BOLD);
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addch(c);
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attroff(A_BOLD);
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} else
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addch(c);
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}
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}
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refresh();
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}
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#ifdef DEBUG
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/*
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* Dump board display to a file.
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*/
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void
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bdump(FILE *fp)
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{
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int c;
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struct spotstr *sp;
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/* top border */
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fprintf(fp, " A B C D E F G H J K L M N O P Q R S T\n");
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for (int row = BSZ + 1; --row > 0; ) {
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fprintf(fp, "%2d ", row); /* left edge */
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for (int col = 1; col <= BSZ; col++) {
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sp = &board[PT(col, row)];
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if (debug > 1 && sp->s_occ == EMPTY) {
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if ((sp->s_flags & IFLAGALL) != 0)
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c = '+';
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else if ((sp->s_flags & CFLAGALL) != 0)
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c = '-';
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else
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c = '.';
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} else
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c = pcolor[sp->s_occ];
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putc(c, fp);
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putc(' ', fp);
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}
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fprintf(fp, "%d\n", row); /* right edge */
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}
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/* bottom border */
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fprintf(fp, " A B C D E F G H J K L M N O P Q R S T\n");
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}
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#endif /* DEBUG */
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/*
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* Display a transcript entry
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*/
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void
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dislog(const char *str)
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{
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if (++lastline >= SCRNH - 1) {
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/* move 'em up */
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lastline = 1;
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}
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mvaddnstr(lastline, TRANSCRIPT_COL, str, SCRNW - TRANSCRIPT_COL - 1);
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clrtoeol();
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move(lastline + 1, TRANSCRIPT_COL);
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clrtoeol();
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}
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/*
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* Display a question.
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*/
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void
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ask(const char *str)
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{
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int len = (int)strlen(str);
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mvaddstr(BSZ + 4, 0, str);
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clrtoeol();
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move(BSZ + 4, len);
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refresh();
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}
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int
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get_key(const char *allowed)
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{
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for (;;) {
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int ch = getch();
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if (allowed == NULL || ch == '\0' ||
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strchr(allowed, ch) != NULL)
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return ch;
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beep();
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refresh();
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}
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}
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bool
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get_line(char *buf, int size, void (*on_change)(const char *))
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{
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char *cp, *end;
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int c;
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cp = buf;
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end = buf + size - 1; /* save room for the '\0' */
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while ((c = getchar()) != EOF && c != '\n' && c != '\r') {
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if (!interactive && cp < end) {
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*cp++ = c;
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continue;
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}
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if (!interactive)
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errx(EXIT_FAILURE, "line too long");
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switch (c) {
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case 0x0c: /* ^L */
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wrefresh(curscr);
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continue;
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case 0x15: /* ^U */
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case 0x18: /* ^X */
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for (; cp > buf; cp--)
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addstr("\b \b");
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break;
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case '\b':
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case 0x7f: /* DEL */
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if (cp == buf)
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continue;
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cp--;
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addstr("\b \b");
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break;
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default:
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if (cp < end) {
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*cp++ = c;
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addch(c);
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} else
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beep();
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}
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if (on_change != NULL) {
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*cp = '\0';
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on_change(buf);
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}
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refresh();
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}
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*cp = '\0';
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return c != EOF;
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}
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static bool
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get_coord_mouse(int *x, int *y)
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{
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MEVENT ev;
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if (getmouse(&ev) == OK &&
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(ev.bstate & (BUTTON1_RELEASED | BUTTON1_CLICKED)) != 0 &&
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ev.y >= scr_y(BSZ) && ev.y <= scr_y(1) &&
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ev.x >= scr_x(1) && ev.x <= scr_x(BSZ) &&
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(ev.x - scr_x(1)) % (scr_x(2) - scr_x(1)) == 0) {
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*x = 1 + (ev.x - scr_x(1)) / (scr_x(2) - scr_x(1));
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*y = 1 + (scr_y(1) - ev.y) / (scr_y(1) - scr_y(2));
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return true;
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}
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return false;
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}
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/*
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* Ask the user for the coordinate of a move, or return RESIGN or SAVE.
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*
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* Based on Eric S. Raymond's modifications to the battleship (bs) user
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* interface.
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*/
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spot_index
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get_coord(void)
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{
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int x = game.user_x, y = game.user_y;
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move(scr_y(y), scr_x(x));
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refresh();
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for (;;) {
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mvprintw(BSZ + 3, 6, "(%c %d) ", letters[x], y);
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move(scr_y(y), scr_x(x));
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int ch = getch();
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switch (ch) {
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case 'k':
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case '8':
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case KEY_UP:
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y++;
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break;
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case 'j':
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case '2':
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case KEY_DOWN:
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y--;
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break;
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case 'h':
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case '4':
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case KEY_LEFT:
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x--;
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break;
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case 'l':
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case '6':
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case KEY_RIGHT:
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x++;
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break;
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case 'y':
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case '7':
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case KEY_A1:
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x--;
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y++;
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break;
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case 'b':
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case '1':
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case KEY_C1:
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x--;
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y--;
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break;
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case 'u':
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case '9':
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case KEY_A3:
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x++;
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y++;
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break;
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case 'n':
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case '3':
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case KEY_C3:
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x++;
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y--;
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break;
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case 'K':
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y += 5;
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break;
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case 'J':
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y -= 5;
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break;
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case 'H':
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x -= 5;
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break;
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case 'L':
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x += 5;
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break;
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case 'Y':
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x -= 5;
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y += 5;
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break;
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case 'B':
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x -= 5;
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y -= 5;
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break;
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case 'U':
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x += 5;
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y += 5;
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break;
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case 'N':
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x += 5;
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y -= 5;
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break;
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case 0x0c: /* ^L */
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(void)clearok(stdscr, true);
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(void)refresh();
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break;
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case KEY_MOUSE:
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if (get_coord_mouse(&x, &y))
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goto selected;
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beep();
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break;
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case 'Q':
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case 'q':
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return RESIGN;
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case 'S':
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case 's':
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return SAVE;
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case ' ':
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case '\r':
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selected:
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(void)mvhline(BSZ + 3, 6, ' ', 6);
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game.user_x = x;
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game.user_y = y;
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return PT(x, y);
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}
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x = 1 + (x + BSZ - 1) % BSZ;
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y = 1 + (y + BSZ - 1) % BSZ;
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}
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}
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