Annotation of src/games/rain/rain.c, Revision 1.18
1.18 ! rpaulo 1: /* $NetBSD: rain.c,v 1.17 2004/05/02 21:31:23 christos Exp $ */
1.5 cgd 2:
1.1 cgd 3: /*
1.5 cgd 4: * Copyright (c) 1980, 1993
5: * The Regents of the University of California. All rights reserved.
1.1 cgd 6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
1.14 agc 15: * 3. Neither the name of the University nor the names of its contributors
1.1 cgd 16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
1.8 lukem 32: #include <sys/cdefs.h>
1.1 cgd 33: #ifndef lint
1.8 lukem 34: __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
35: The Regents of the University of California. All rights reserved.\n");
1.1 cgd 36: #endif /* not lint */
37:
38: #ifndef lint
1.5 cgd 39: #if 0
40: static char sccsid[] = "@(#)rain.c 8.1 (Berkeley) 5/31/93";
41: #else
1.18 ! rpaulo 42: __RCSID("$NetBSD: rain.c,v 1.17 2004/05/02 21:31:23 christos Exp $");
1.5 cgd 43: #endif
1.1 cgd 44: #endif /* not lint */
45:
46: /*
47: * rain 11/3/1980 EPS/CITHEP
48: * cc rain.c -o rain -O -ltermlib
49: */
50:
51: #include <sys/types.h>
1.11 hubertf 52: #include <curses.h>
1.8 lukem 53: #include <err.h>
54: #include <signal.h>
1.1 cgd 55: #include <stdio.h>
1.8 lukem 56: #include <stdlib.h>
1.11 hubertf 57: #include <unistd.h>
1.17 christos 58: #include <errno.h>
59: #include <limits.h>
1.1 cgd 60:
1.17 christos 61: static volatile sig_atomic_t sig_caught = 0;
1.1 cgd 62:
1.17 christos 63: int main(int, char **);
64: static void onsig(int);
1.8 lukem 65:
66:
67: int
1.17 christos 68: main(int argc, char **argv)
1.1 cgd 69: {
1.8 lukem 70: int x, y, j;
71: long cols, lines;
1.11 hubertf 72: unsigned int delay = 0;
1.17 christos 73: unsigned long val = 0;
1.11 hubertf 74: int ch;
1.17 christos 75: char *ep;
1.1 cgd 76: int xpos[5], ypos[5];
77:
1.17 christos 78: while ((ch = getopt(argc, argv, "d:")) != -1)
1.11 hubertf 79: switch (ch) {
80: case 'd':
1.17 christos 81: val = strtoul(optarg, &ep, 0);
82: if (ep == optarg || *ep)
83: errx(1, "Invalid delay `%s'", optarg);
84: if (errno == ERANGE && val == ULONG_MAX)
85: err(1, "Invalid delay `%s'", optarg);
86: if (val >= 1000)
87: errx(1, "Invalid delay `%s' (1-999)", optarg);
88: delay = (unsigned int)val * 1000; /* ms -> us */
1.11 hubertf 89: break;
90: default:
1.17 christos 91: (void)fprintf(stderr, "Usage: %s [-d delay]\n",
92: getprogname());
93: return 1;
1.1 cgd 94: }
1.11 hubertf 95:
1.18 ! rpaulo 96: (void)initscr();
1.11 hubertf 97: cols = COLS - 4;
98: lines = LINES - 4;
99:
1.1 cgd 100: (void)signal(SIGHUP, onsig);
101: (void)signal(SIGINT, onsig);
102: (void)signal(SIGTERM, onsig);
1.11 hubertf 103:
1.18 ! rpaulo 104: (void)curs_set(0);
1.1 cgd 105: for (j = 4; j >= 0; --j) {
106: xpos[j] = random() % cols + 2;
107: ypos[j] = random() % lines + 2;
108: }
109: for (j = 0;;) {
1.11 hubertf 110: if (sig_caught) {
1.18 ! rpaulo 111: (void)endwin();
1.11 hubertf 112: exit(0);
113: }
1.1 cgd 114: x = random() % cols + 2;
115: y = random() % lines + 2;
1.18 ! rpaulo 116: (void)mvaddch(y, x, '.');
! 117: (void)mvaddch(ypos[j], xpos[j], 'o');
1.1 cgd 118: if (!j--)
119: j = 4;
1.18 ! rpaulo 120: (void)mvaddch(ypos[j], xpos[j], 'O');
1.1 cgd 121: if (!j--)
122: j = 4;
1.18 ! rpaulo 123: (void)mvaddch(ypos[j] - 1, xpos[j], '-');
! 124: (void)mvaddstr(ypos[j], xpos[j] - 1, "|.|");
! 125: (void)mvaddch(ypos[j] + 1, xpos[j], '-');
1.1 cgd 126: if (!j--)
127: j = 4;
1.18 ! rpaulo 128: (void)mvaddch(ypos[j] - 2, xpos[j], '-');
! 129: (void)mvaddstr(ypos[j] - 1, xpos[j] - 1, "/ \\");
! 130: (void)mvaddstr(ypos[j], xpos[j] - 2, "| O |");
! 131: (void)mvaddstr(ypos[j] + 1, xpos[j] - 1, "\\ /");
! 132: (void)mvaddch(ypos[j] + 2, xpos[j], '-');
1.1 cgd 133: if (!j--)
134: j = 4;
1.18 ! rpaulo 135: (void)mvaddch(ypos[j] - 2, xpos[j], ' ');
! 136: (void)mvaddstr(ypos[j] - 1, xpos[j] - 1, " ");
! 137: (void)mvaddstr(ypos[j], xpos[j] - 2, " ");
! 138: (void)mvaddstr(ypos[j] + 1, xpos[j] - 1, " ");
! 139: (void)mvaddch(ypos[j] + 2, xpos[j], ' ');
1.1 cgd 140: xpos[j] = x;
141: ypos[j] = y;
1.18 ! rpaulo 142: (void)refresh();
! 143: if (delay) (void)usleep(delay);
1.1 cgd 144: }
145: }
146:
1.18 ! rpaulo 147: /* ARGSUSED */
1.17 christos 148: static void
149: onsig(int dummy __attribute__((__unused__)))
1.1 cgd 150: {
1.11 hubertf 151: sig_caught = 1;
1.1 cgd 152: }
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