Merge branch 'vendor/GDB'
[dragonfly.git] / games / rain / rain.c
CommitLineData
6693db17 1/*-
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2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
6693db17 13 * 3. Neither the name of the University nor the names of its contributors
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14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
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
27 * SUCH DAMAGE.
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28 *
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 $
851dc90d 32 * $DragonFly: src/games/rain/rain.c,v 1.3 2003/11/12 14:53:54 eirikn Exp $
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33 */
34
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35/*
36 * rain 11/3/1980 EPS/CITHEP
37 * cc rain.c -o rain -O -ltermlib
38 */
39
40#include <sys/types.h>
41#include <curses.h>
42#include <err.h>
43#include <stdio.h>
44#include <signal.h>
45#include <stdlib.h>
46#include <unistd.h>
47
48volatile sig_atomic_t sig_caught = 0;
49
851dc90d 50static void onsig (int sig);
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51
52int
53main(int argc, char **argv)
54{
55 int x, y, j;
56 long cols, lines;
57 int xpos[5], ypos[5];
58 unsigned int delay = 0;
59 int ch;
60
61 while ((ch = getopt(argc, argv, "d:h")) != -1)
62 switch (ch) {
63 case 'd':
2038fb68 64 if ((delay = (unsigned int)strtoul(optarg, NULL, 10)) < 1
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65 || delay > 1000)
66 errx(1, "invalid delay (1-1000)");
67 delay *= 1000; /* ms -> us */
68 break;
69 case 'h':
70 default:
71 (void)fprintf(stderr, "usage: rain [-d delay]\n");
72 exit(1);
73 }
74 srandomdev();
75
76 initscr();
77 cols = COLS - 4;
78 lines = LINES - 4;
79
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);
86
87 for (j = 4; j >= 0; --j) {
88 xpos[j] = random() % cols + 2;
89 ypos[j] = random() % lines + 2;
90 }
91 for (j = 0;;) {
92 if (sig_caught) {
93 endwin();
94 exit(0);
95 }
96 x = random() % cols + 2;
97 y = random() % lines + 2;
98 mvaddch(y, x, '.');
99 mvaddch(ypos[j], xpos[j], 'o');
100 if (!j--)
101 j = 4;
102 mvaddch(ypos[j], xpos[j], 'O');
103 if (!j--)
104 j = 4;
105 mvaddch(ypos[j] - 1, xpos[j], '-');
106 mvaddstr(ypos[j], xpos[j] - 1, "|.|");
107 mvaddch(ypos[j] + 1, xpos[j], '-');
108 if (!j--)
109 j = 4;
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], '-');
115 if (!j--)
116 j = 4;
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], ' ');
122 xpos[j] = x;
123 ypos[j] = y;
124 refresh();
125 if (delay) usleep(delay);
126 }
127}
128
129static void
130onsig(int sig)
131{
132
133 sig = 0;
134 sig_caught = 1;
135}