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 * @(#)worms.c 8.1 (Berkeley) 5/31/93
31 * $FreeBSD: src/games/worms/worms.c,v 1.8.2.1 2000/12/04 10:36:17 alex Exp $
32 * $DragonFly: src/games/worms/worms.c,v 1.5 2007/04/18 18:32:12 swildner Exp $
37 * @@@ @@@ @@@@@@@@@@ @@@@@@@@@@@ @@@@@@@@@@@@
38 * @@@ @@@ @@@@@@@@@@@@ @@@@@@@@@@@@ @@@@@@@@@@@@@
39 * @@@ @@@ @@@@ @@@@ @@@@ @@@@ @@@ @@@@
40 * @@@ @@ @@@ @@@ @@@ @@@ @@@ @@@ @@@
41 * @@@ @@@@ @@@ @@@ @@@ @@@ @@@ @@@ @@@
42 * @@@@ @@@@ @@@@ @@@ @@@ @@@ @@@ @@@ @@@
43 * @@@@@@@@@@@@ @@@@ @@@@ @@@ @@@ @@@ @@@
44 * @@@@ @@@@ @@@@@@@@@@@@ @@@ @@@ @@@ @@@
45 * @@ @@ @@@@@@@@@@ @@@ @@@ @@@ @@@
48 * Caltech High Energy Physics
52 #include <sys/types.h>
60 static const struct options
{
155 static const char flavor
[] = {
156 'O', '*', '#', '$', '%', '0', '@', '~'
158 static const short xinc
[] = {
159 1, 1, 1, 0, -1, -1, -1, 0
161 -1, 0, 1, 1, 1, 0, -1, -1
164 int orientation
, head
;
168 volatile sig_atomic_t sig_caught
= 0;
174 main(int argc
, char **argv
)
178 const struct options
*op
;
180 int CO
, LI
, last
, bottom
, ch
, length
, number
, trail
;
184 unsigned int delay
= 0;
191 while ((ch
= getopt(argc
, argv
, "d:fl:n:t")) != -1)
194 if ((delay
= (unsigned int)strtoul(optarg
, NULL
, 10)) < 1 || delay
> 1000)
195 errx(1, "invalid delay (1-1000)");
196 delay
*= 1000; /* ms -> us */
202 if ((length
= atoi(optarg
)) < 2 || length
> 1024) {
203 errx(1, "invalid length (%d - %d).",
208 if ((number
= atoi(optarg
)) < 1) {
209 errx(1, "invalid number of worms.");
217 (void)fprintf(stderr
,
218 "usage: worms [-ft] [-d delay] [-l length] [-n number]\n");
222 if (!(worm
= malloc((size_t)number
*
223 sizeof(struct worm
))) || !(mp
= malloc((size_t)1024)))
230 if (!(ip
= malloc((size_t)(LI
* CO
* sizeof(short)))))
232 if (!(ref
= malloc((size_t)(LI
* sizeof(short *)))))
234 for (n
= 0; n
< LI
; ++n
) {
238 for (ip
= ref
[0], n
= LI
* CO
; --n
>= 0;)
240 for (n
= number
, w
= &worm
[0]; --n
>= 0; w
++) {
241 w
->orientation
= w
->head
= 0;
242 if (!(ip
= malloc((size_t)(length
* sizeof(short)))))
245 for (x
= length
; --x
>= 0;)
247 if (!(ip
= malloc((size_t)(length
* sizeof(short)))))
250 for (y
= length
; --y
>= 0;)
254 (void)signal(SIGHUP
, onsig
);
255 (void)signal(SIGINT
, onsig
);
256 (void)signal(SIGQUIT
, onsig
);
257 (void)signal(SIGSTOP
, onsig
);
258 (void)signal(SIGTSTP
, onsig
);
259 (void)signal(SIGTERM
, onsig
);
262 const char *p
= field
;
264 for (y
= LI
; --y
>= 0;) {
265 for (x
= CO
; --x
>= 0;) {
279 for (n
= 0, w
= &worm
[0]; n
< number
; n
++, w
++) {
280 if ((x
= w
->xpos
[h
= w
->head
]) < 0) {
281 mvaddch(y
= w
->ypos
[h
] = bottom
,
283 flavor
[n
% sizeof(flavor
)]);
290 if (w
->xpos
[w
->head
= h
] >= 0) {
295 if (--ref
[y1
][x1
] == 0) {
296 mvaddch(y1
, x1
, trail
);
299 op
= &(!x
? (!y
? upleft
: (y
== bottom
? lowleft
: left
)) : (x
== last
? (!y
? upright
: (y
== bottom
? lowright
: right
)) : (!y
? upper
: (y
== bottom
? lower
: normal
))))[w
->orientation
];
306 w
->orientation
= op
->opts
[0];
310 op
->opts
[(int)random() % op
->nopts
];
312 mvaddch(y
+= yinc
[w
->orientation
],
313 x
+= xinc
[w
->orientation
],
314 flavor
[n
% sizeof(flavor
)]);
315 ref
[w
->ypos
[h
] = y
][w
->xpos
[h
] = x
]++;
323 onsig(int signo __unused
)
331 errx(1, "not enough memory.");