2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)rain.c 8.1 (Berkeley) 5/31/93
31 * $FreeBSD: src/games/rain/rain.c,v 1.8.2.1 2001/03/05 11:54:10 kris Exp $
32 * $DragonFly: src/games/rain/rain.c,v 1.3 2003/11/12 14:53:54 eirikn Exp $
36 * rain 11/3/1980 EPS/CITHEP
37 * cc rain.c -o rain -O -ltermlib
40 #include <sys/types.h>
48 volatile sig_atomic_t sig_caught = 0;
50 static void onsig (int sig);
53 main(int argc, char **argv)
58 unsigned int delay = 0;
61 while ((ch = getopt(argc, argv, "d:h")) != -1)
64 if ((delay = (unsigned int)strtoul(optarg, NULL, 10)) < 1
66 errx(1, "invalid delay (1-1000)");
67 delay *= 1000; /* ms -> us */
71 (void)fprintf(stderr, "usage: rain [-d delay]\n");
80 (void)signal(SIGHUP, onsig);
81 (void)signal(SIGINT, onsig);
82 (void)signal(SIGQUIT, onsig);
83 (void)signal(SIGSTOP, onsig);
84 (void)signal(SIGTSTP, onsig);
85 (void)signal(SIGTERM, onsig);
87 for (j = 4; j >= 0; --j) {
88 xpos[j] = random() % cols + 2;
89 ypos[j] = random() % lines + 2;
96 x = random() % cols + 2;
97 y = random() % lines + 2;
99 mvaddch(ypos[j], xpos[j], 'o');
102 mvaddch(ypos[j], xpos[j], 'O');
105 mvaddch(ypos[j] - 1, xpos[j], '-');
106 mvaddstr(ypos[j], xpos[j] - 1, "|.|");
107 mvaddch(ypos[j] + 1, xpos[j], '-');
110 mvaddch(ypos[j] - 2, xpos[j], '-');
111 mvaddstr(ypos[j] - 1, xpos[j] - 1, "/ \\");
112 mvaddstr(ypos[j], xpos[j] - 2, "| O |");
113 mvaddstr(ypos[j] + 1, xpos[j] - 1, "\\ /");
114 mvaddch(ypos[j] + 2, xpos[j], '-');
117 mvaddch(ypos[j] - 2, xpos[j], ' ');
118 mvaddstr(ypos[j] - 1, xpos[j] - 1, " ");
119 mvaddstr(ypos[j], xpos[j] - 2, " ");
120 mvaddstr(ypos[j] + 1, xpos[j] - 1, " ");
121 mvaddch(ypos[j] + 2, xpos[j], ' ');
125 if (delay) usleep(delay);