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Initial revision
git-svn-id: file:///srv/svn/joey/bsdgames-trunk@5086 a4a2c43b-8ac3-0310-8836-e0e880c912e2
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joey
296
battlestar/fly.c
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296
battlestar/fly.c
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/* $NetBSD: fly.c,v 1.6 1997/10/11 02:07:20 lukem Exp $ */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)fly.c 8.2 (Berkeley) 4/28/95";
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#else
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__RCSID("$NetBSD: fly.c,v 1.6 1997/10/11 02:07:20 lukem Exp $");
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#endif
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#endif /* not lint */
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#include "extern.h"
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#undef UP
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#include <curses.h>
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#define abs(a) ((a) < 0 ? -(a) : (a))
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#define MIDR (LINES/2 - 1)
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#define MIDC (COLS/2 - 1)
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int row, column;
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int dr = 0, dc = 0;
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char destroyed;
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int ourclock = 120; /* time for all the flights in the game */
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char cross = 0;
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sig_t oldsig;
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void
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succumb(dummy)
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int dummy __attribute__((unused));
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{
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if (oldsig == SIG_DFL) {
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endfly();
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exit(1);
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}
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if (oldsig != SIG_IGN) {
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endfly();
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(*oldsig) (SIGINT);
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}
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}
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int
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visual()
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{
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destroyed = 0;
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if (initscr() == NULL) {
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puts("Whoops! No more memory...");
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return (0);
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}
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oldsig = signal(SIGINT, succumb);
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crmode();
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noecho();
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screen();
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row = rnd(LINES - 3) + 1;
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column = rnd(COLS - 2) + 1;
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moveenemy(0);
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for (;;) {
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switch (getchar()) {
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case 'h':
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case 'r':
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dc = -1;
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fuel--;
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break;
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case 'H':
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case 'R':
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dc = -5;
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fuel -= 10;
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break;
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case 'l':
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dc = 1;
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fuel--;
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break;
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case 'L':
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dc = 5;
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fuel -= 10;
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break;
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case 'j':
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case 'u':
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dr = 1;
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fuel--;
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break;
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case 'J':
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case 'U':
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dr = 5;
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fuel -= 10;
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break;
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case 'k':
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case 'd':
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dr = -1;
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fuel--;
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break;
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case 'K':
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case 'D':
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dr = -5;
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fuel -= 10;
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break;
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case '+':
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if (cross) {
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cross = 0;
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notarget();
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} else
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cross = 1;
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break;
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case ' ':
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case 'f':
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if (torps) {
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torps -= 2;
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blast();
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if (row == MIDR && column - MIDC < 2 && MIDC - column < 2) {
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destroyed = 1;
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alarm(0);
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}
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} else
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mvaddstr(0, 0, "*** Out of torpedoes. ***");
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break;
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case 'q':
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endfly();
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return (0);
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default:
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mvaddstr(0, 26, "Commands = r,R,l,L,u,U,d,D,f,+,q");
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continue;
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case EOF:
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break;
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}
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if (destroyed) {
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endfly();
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return (1);
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}
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if (ourclock <= 0) {
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endfly();
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die();
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}
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}
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}
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void
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screen()
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{
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int r, c, n;
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int i;
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clear();
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i = rnd(100);
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for (n = 0; n < i; n++) {
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r = rnd(LINES - 3) + 1;
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c = rnd(COLS);
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mvaddch(r, c, '.');
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}
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mvaddstr(LINES - 1 - 1, 21, "TORPEDOES FUEL TIME");
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refresh();
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}
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void
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target()
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{
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int n;
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move(MIDR, MIDC - 10);
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addstr("------- + -------");
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for (n = MIDR - 4; n < MIDR - 1; n++) {
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mvaddch(n, MIDC, '|');
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mvaddch(n + 6, MIDC, '|');
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}
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}
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void
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notarget()
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{
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int n;
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move(MIDR, MIDC - 10);
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addstr(" ");
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for (n = MIDR - 4; n < MIDR - 1; n++) {
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mvaddch(n, MIDC, ' ');
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mvaddch(n + 6, MIDC, ' ');
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}
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}
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void
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blast()
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{
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int n;
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alarm(0);
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move(LINES - 1, 24);
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printw("%3d", torps);
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for (n = LINES - 1 - 2; n >= MIDR + 1; n--) {
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mvaddch(n, MIDC + MIDR - n, '/');
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mvaddch(n, MIDC - MIDR + n, '\\');
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refresh();
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}
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mvaddch(MIDR, MIDC, '*');
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for (n = LINES - 1 - 2; n >= MIDR + 1; n--) {
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mvaddch(n, MIDC + MIDR - n, ' ');
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mvaddch(n, MIDC - MIDR + n, ' ');
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refresh();
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}
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alarm(1);
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}
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void
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moveenemy(dummy)
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int dummy __attribute__((unused));
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{
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double d;
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int oldr, oldc;
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oldr = row;
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oldc = column;
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if (fuel > 0) {
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if (row + dr <= LINES - 3 && row + dr > 0)
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row += dr;
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if (column + dc < COLS - 1 && column + dc > 0)
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column += dc;
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} else
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if (fuel < 0) {
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fuel = 0;
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mvaddstr(0, 60, "*** Out of fuel ***");
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}
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d = (double) ((row - MIDR) * (row - MIDR) + (column - MIDC) * (column - MIDC));
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if (d < 16) {
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row += (rnd(9) - 4) % (4 - abs(row - MIDR));
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column += (rnd(9) - 4) % (4 - abs(column - MIDC));
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}
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ourclock--;
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mvaddstr(oldr, oldc - 1, " ");
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if (cross)
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target();
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mvaddstr(row, column - 1, "/-\\");
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move(LINES - 1, 24);
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printw("%3d", torps);
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move(LINES - 1, 42);
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printw("%3d", fuel);
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move(LINES - 1, 57);
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printw("%3d", ourclock);
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refresh();
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signal(SIGALRM, moveenemy);
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alarm(1);
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}
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void
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endfly()
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{
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alarm(0);
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signal(SIGALRM, SIG_DFL);
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mvcur(0, COLS - 1, LINES - 1, 0);
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endwin();
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setvbuf(stdout, NULL, _IOLBF, BUFSIZ); /* Needed for ncurses */
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signal(SIGTSTP, SIG_DFL);
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signal(SIGINT, oldsig);
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}
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