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git-svn-id: file:///srv/svn/joey/bsdgames-trunk@5086 a4a2c43b-8ac3-0310-8836-e0e880c912e2
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joey
1999-09-08 23:56:51 +00:00
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9
worms/Makefile.bsd Normal file
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# $NetBSD: Makefile,v 1.6 1998/02/18 22:37:32 jtc Exp $
# @(#)Makefile 8.1 (Berkeley) 5/31/93
PROG= worms
MAN= worms.6
DPADD= ${LIBCURSES}
LDADD= -lcurses
.include <bsd.prog.mk>

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# Makefrag - makefile fragment for worms
worms_DIRS := $(GAMESDIR) $(MAN6DIR)
worms_all: worms/worms worms/worms.6
worms_install: worms_all
$(INSTALL_BINARY) worms/worms $(INSTALL_PREFIX)$(GAMESDIR)/worms
$(HIDE_GAME) worms
$(INSTALL_MANUAL) worms/worms.6

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.\" $NetBSD: worms.6,v 1.8 1998/04/28 06:00:52 fair Exp $
.\"
.\" Copyright (c) 1989, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)worms.6 8.1 (Berkeley) 5/31/93
.\"
.Dd May 31, 1993
.Dt WORMS 6
.Sh NAME
.Nm worms
.Nd animate worms on a display terminal
.Sh SYNOPSIS
.Nm
.Op Fl ft
.Op Fl l Ar length
.Op Fl n Ar number
.Sh DESCRIPTION
A
.Ux
version of the DEC-2136 program ``worms''.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl f
Makes a ``field'' for the worm(s) to eat.
.It Fl t
Makes each worm leave a trail behind it.
.It Fl l
Specifies a length for each worm; the default is 16.
.It Fl n
Specifies the number of worms; the default is 3.
.Sh BUGS
The lower-right-hand character position will not be updated properly
on a terminal that wraps at the right margin.

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/* $NetBSD: worms.c,v 1.10 1998/09/13 15:27:31 hubertf Exp $ */
/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
The Regents of the University of California. All rights reserved.\n");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)worms.c 8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: worms.c,v 1.10 1998/09/13 15:27:31 hubertf Exp $");
#endif
#endif /* not lint */
/*
*
* @@@ @@@ @@@@@@@@@@ @@@@@@@@@@@ @@@@@@@@@@@@
* @@@ @@@ @@@@@@@@@@@@ @@@@@@@@@@@@ @@@@@@@@@@@@@
* @@@ @@@ @@@@ @@@@ @@@@ @@@@ @@@ @@@@
* @@@ @@ @@@ @@@ @@@ @@@ @@@ @@@ @@@
* @@@ @@@@ @@@ @@@ @@@ @@@ @@@ @@@ @@@
* @@@@ @@@@ @@@@ @@@ @@@ @@@ @@@ @@@ @@@
* @@@@@@@@@@@@ @@@@ @@@@ @@@ @@@ @@@ @@@
* @@@@ @@@@ @@@@@@@@@@@@ @@@ @@@ @@@ @@@
* @@ @@ @@@@@@@@@@ @@@ @@@ @@@ @@@
*
* Eric P. Scott
* Caltech High Energy Physics
* October, 1980
*
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
static struct options {
int nopts;
int opts[3];
}
normal[8] = {
{ 3, { 7, 0, 1 } },
{ 3, { 0, 1, 2 } },
{ 3, { 1, 2, 3 } },
{ 3, { 2, 3, 4 } },
{ 3, { 3, 4, 5 } },
{ 3, { 4, 5, 6 } },
{ 3, { 5, 6, 7 } },
{ 3, { 6, 7, 0 } }
}, upper[8] = {
{ 1, { 1, 0, 0 } },
{ 2, { 1, 2, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 2, { 4, 5, 0 } },
{ 1, { 5, 0, 0 } },
{ 2, { 1, 5, 0 } }
},
left[8] = {
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 2, { 2, 3, 0 } },
{ 1, { 3, 0, 0 } },
{ 2, { 3, 7, 0 } },
{ 1, { 7, 0, 0 } },
{ 2, { 7, 0, 0 } }
},
right[8] = {
{ 1, { 7, 0, 0 } },
{ 2, { 3, 7, 0 } },
{ 1, { 3, 0, 0 } },
{ 2, { 3, 4, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 2, { 6, 7, 0 } }
},
lower[8] = {
{ 0, { 0, 0, 0 } },
{ 2, { 0, 1, 0 } },
{ 1, { 1, 0, 0 } },
{ 2, { 1, 5, 0 } },
{ 1, { 5, 0, 0 } },
{ 2, { 5, 6, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } }
},
upleft[8] = {
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 1, { 3, 0, 0 } },
{ 2, { 1, 3, 0 } },
{ 1, { 1, 0, 0 } }
},
upright[8] = {
{ 2, { 3, 5, 0 } },
{ 1, { 3, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 1, { 5, 0, 0 } }
},
lowleft[8] = {
{ 3, { 7, 0, 1 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 1, { 1, 0, 0 } },
{ 2, { 1, 7, 0 } },
{ 1, { 7, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } }
},
lowright[8] = {
{ 0, { 0, 0, 0 } },
{ 1, { 7, 0, 0 } },
{ 2, { 5, 7, 0 } },
{ 1, { 5, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } },
{ 0, { 0, 0, 0 } }
};
#define cursor(c, r) tputs(tgoto(CM, c, r), 1, fputchar)
char *tcp;
static char flavor[] = {
'O', '*', '#', '$', '%', '0', '@', '~'
};
static short xinc[] = {
1, 1, 1, 0, -1, -1, -1, 0
}, yinc[] = {
-1, 0, 1, 1, 1, 0, -1, -1
};
static struct worm {
int orientation, head;
short *xpos, *ypos;
} *worm;
void fputchar __P((int));
int main __P((int, char **));
void nomem __P((void)) __attribute__((__noreturn__));
void onsig __P((int)) __attribute__((__noreturn__));
int tgetent __P((char *, char *));
int tgetflag __P((char *));
int tgetnum __P((char *));
char *tgetstr __P((char *, char **));
char *tgoto __P((char *, int, int));
int tputs __P((char *, int, void (*)(int)));
int
main(argc, argv)
int argc;
char *argv[];
{
extern char *UP;
int x, y, h, n;
struct worm *w;
struct options *op;
short *ip;
char *term;
int CO, IN, LI, last, bottom, ch, length, number, trail, Wrap;
short **ref;
char *AL, *BC, *CM, *EI, *HO, *IC, *IM, *IP, *SR;
char *field, tcb[100], *mp;
struct termios ti;
#ifdef TIOCGWINSZ
struct winsize ws;
#endif
/* Revoke setgid privileges */
setregid(getgid(), getgid());
mp = NULL;
length = 16;
number = 3;
trail = ' ';
field = NULL;
while ((ch = getopt(argc, argv, "fl:n:t")) != -1)
switch(ch) {
case 'f':
field = "WORM";
break;
case 'l':
if ((length = atoi(optarg)) < 2 || length > 1024) {
(void)fprintf(stderr,
"worms: invalid length (%d - %d).\n",
2, 1024);
exit(1);
}
break;
case 'n':
if ((number = atoi(optarg)) < 1) {
(void)fprintf(stderr,
"worms: invalid number of worms.\n");
exit(1);
}
break;
case 't':
trail = '.';
break;
case '?':
default:
(void)fprintf(stderr,
"usage: worms [-ft] [-l length] [-n number]\n");
exit(1);
}
if (!(term = getenv("TERM"))) {
(void)fprintf(stderr, "worms: no TERM environment variable.\n");
exit(1);
}
if (!(worm = malloc((size_t)number *
sizeof(struct worm))) || !(mp = malloc((size_t)1024)))
nomem();
if (tgetent(mp, term) <= 0) {
(void)fprintf(stderr, "worms: %s: unknown terminal type.\n",
term);
exit(1);
}
tcp = tcb;
if (!(CM = tgetstr("cm", &tcp))) {
(void)fprintf(stderr,
"worms: terminal incapable of cursor motion.\n");
exit(1);
}
AL = tgetstr("al", &tcp);
BC = tgetflag("bs") ? "\b" : tgetstr("bc", &tcp);
EI = tgetstr("ei", &tcp);
HO = tgetstr("ho", &tcp);
IC = tgetstr("ic", &tcp);
IM = tgetstr("im", &tcp);
IN = tgetflag("in");
IP = tgetstr("ip", &tcp);
SR = tgetstr("sr", &tcp);
UP = tgetstr("up", &tcp);
#ifdef TIOCGWINSZ
if (ioctl(fileno(stdout), TIOCGWINSZ, &ws) != -1 &&
ws.ws_col && ws.ws_row) {
CO = ws.ws_col;
LI = ws.ws_row;
} else
#endif
{
if ((CO = tgetnum("co")) <= 0)
CO = 80;
if ((LI = tgetnum("li")) <= 0)
LI = 24;
}
last = CO - 1;
bottom = LI - 1;
tcgetattr(fileno(stdout), &ti);
Wrap = tgetflag("am");
if (!(ip = malloc((size_t)(LI * CO * sizeof(short)))))
nomem();
if (!(ref = malloc((size_t)(LI * sizeof(short *)))))
nomem();
for (n = 0; n < LI; ++n) {
ref[n] = ip;
ip += CO;
}
for (ip = ref[0], n = LI * CO; --n >= 0;)
*ip++ = 0;
if (Wrap)
ref[bottom][last] = 1;
for (n = number, w = &worm[0]; --n >= 0; w++) {
w->orientation = w->head = 0;
if (!(ip = malloc((size_t)(length * sizeof(short)))))
nomem();
w->xpos = ip;
for (x = length; --x >= 0;)
*ip++ = -1;
if (!(ip = malloc((size_t)(length * sizeof(short)))))
nomem();
w->ypos = ip;
for (y = length; --y >= 0;)
*ip++ = -1;
}
(void)signal(SIGHUP, onsig);
(void)signal(SIGINT, onsig);
(void)signal(SIGQUIT, onsig);
(void)signal(SIGSTOP, onsig);
(void)signal(SIGTSTP, onsig);
(void)signal(SIGTERM, onsig);
tputs(tgetstr("ti", &tcp), 1, fputchar);
tputs(tgetstr("cl", &tcp), 1, fputchar);
if (field) {
char *p = field;
for (y = bottom; --y >= 0;) {
for (x = CO; --x >= 0;) {
fputchar(*p++);
if (!*p)
p = field;
}
if (!Wrap)
fputchar('\n');
(void)fflush(stdout);
}
if (Wrap) {
if (IM && !IN) {
for (x = last; --x > 0;) {
fputchar(*p++);
if (!*p)
p = field;
}
y = *p++;
if (!*p)
p = field;
fputchar(*p);
if (BC)
tputs(BC, 1, fputchar);
else
cursor(last - 1, bottom);
tputs(IM, 1, fputchar);
if (IC)
tputs(IC, 1, fputchar);
fputchar(y);
if (IP)
tputs(IP, 1, fputchar);
tputs(EI, 1, fputchar);
}
else if (SR || AL) {
if (HO)
tputs(HO, 1, fputchar);
else
cursor(0, 0);
if (SR)
tputs(SR, 1, fputchar);
else
tputs(AL, LI, fputchar);
for (x = CO; --x >= 0;) {
fputchar(*p++);
if (!*p)
p = field;
}
}
else for (x = last; --x >= 0;) {
fputchar(*p++);
if (!*p)
p = field;
}
}
else for (x = CO; --x >= 0;) {
fputchar(*p++);
if (!*p)
p = field;
}
}
for (;;) {
(void)fflush(stdout);
for (n = 0, w = &worm[0]; n < number; n++, w++) {
if ((x = w->xpos[h = w->head]) < 0) {
cursor(x = w->xpos[h] = 0,
y = w->ypos[h] = bottom);
fputchar(flavor[n % sizeof(flavor)]);
ref[y][x]++;
}
else
y = w->ypos[h];
if (++h == length)
h = 0;
if (w->xpos[w->head = h] >= 0) {
int x1, y1;
x1 = w->xpos[h];
y1 = w->ypos[h];
if (--ref[y1][x1] == 0) {
cursor(x1, y1);
if (trail)
fputchar(trail);
}
}
op = &(!x ? (!y ? upleft : (y == bottom ? lowleft : left)) : (x == last ? (!y ? upright : (y == bottom ? lowright : right)) : (!y ? upper : (y == bottom ? lower : normal))))[w->orientation];
switch (op->nopts) {
case 0:
(void)fflush(stdout);
abort();
return(1);
case 1:
w->orientation = op->opts[0];
break;
default:
w->orientation =
op->opts[(int)random() % op->nopts];
}
cursor(x += xinc[w->orientation],
y += yinc[w->orientation]);
if (!Wrap || x != last || y != bottom)
fputchar(flavor[n % sizeof(flavor)]);
ref[w->ypos[h] = y][w->xpos[h] = x]++;
}
}
}
void
onsig(signo)
int signo __attribute__((unused));
{
tputs(tgetstr("cl", &tcp), 1, fputchar);
tputs(tgetstr("te", &tcp), 1, fputchar);
exit(0);
}
void
fputchar(c)
int c;
{
(void)putchar(c);
}
void
nomem()
{
(void)fprintf(stderr, "worms: not enough memory.\n");
exit(1);
}