HardenedBSD/games/worm/worm.c
Jordan K. Hubbard 554eb505f8 Bring in the 4.4 Lite games directory, modulo man page changes and segregation
of the x11 based games.  I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way.  Bleah.
Submitted by:	jkh
1994-09-04 04:03:31 +00:00

301 lines
6.0 KiB
C

/*
* 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.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1980, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)worm.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
/*
* Worm. Written by Michael Toy
* UCSC
*/
#include <ctype.h>
#include <curses.h>
#include <signal.h>
#include <termios.h>
#define newlink() (struct body *) malloc(sizeof (struct body));
#define HEAD '@'
#define BODY 'o'
#define LENGTH 7
#define RUNLEN 8
#define CNTRL(p) (p-'A'+1)
#ifndef baudrate
# define baudrate() _tty.sg_ospeed
#endif
WINDOW *tv;
WINDOW *stw;
struct body {
int x;
int y;
struct body *prev;
struct body *next;
} *head, *tail, goody;
int growing = 0;
int running = 0;
int slow = 0;
int score = 0;
int start_len = LENGTH;
char lastch;
char outbuf[BUFSIZ];
void leave(), wake(), suspend();
main(argc, argv)
int argc;
char **argv;
{
char ch;
if (argc == 2)
start_len = atoi(argv[1]);
if ((start_len <= 0) || (start_len > 500))
start_len = LENGTH;
setbuf(stdout, outbuf);
srand(getpid());
signal(SIGALRM, wake);
signal(SIGINT, leave);
signal(SIGQUIT, leave);
signal(SIGTSTP, suspend); /* process control signal */
initscr();
crmode();
noecho();
slow = (baudrate() <= B1200);
clear();
stw = newwin(1, COLS-1, 0, 0);
tv = newwin(LINES-1, COLS-1, 1, 0);
box(tv, '*', '*');
scrollok(tv, FALSE);
scrollok(stw, FALSE);
wmove(stw, 0, 0);
wprintw(stw, " Worm");
refresh();
wrefresh(stw);
wrefresh(tv);
life(); /* Create the worm */
prize(); /* Put up a goal */
while(1)
{
if (running)
{
running--;
process(lastch);
}
else
{
fflush(stdout);
if (read(0, &ch, 1) >= 0)
process(ch);
}
}
}
life()
{
register struct body *bp, *np;
register int i;
head = newlink();
head->x = start_len+2;
head->y = 12;
head->next = NULL;
display(head, HEAD);
for (i = 0, bp = head; i < start_len; i++, bp = np) {
np = newlink();
np->next = bp;
bp->prev = np;
np->x = bp->x - 1;
np->y = bp->y;
display(np, BODY);
}
tail = np;
tail->prev = NULL;
}
display(pos, chr)
struct body *pos;
char chr;
{
wmove(tv, pos->y, pos->x);
waddch(tv, chr);
}
void
leave()
{
endwin();
exit(0);
}
void
wake()
{
signal(SIGALRM, wake);
fflush(stdout);
process(lastch);
}
rnd(range)
{
return abs((rand()>>5)+(rand()>>5)) % range;
}
newpos(bp)
struct body * bp;
{
do {
bp->y = rnd(LINES-3)+ 2;
bp->x = rnd(COLS-3) + 1;
wmove(tv, bp->y, bp->x);
} while(winch(tv) != ' ');
}
prize()
{
int value;
value = rnd(9) + 1;
newpos(&goody);
waddch(tv, value+'0');
wrefresh(tv);
}
process(ch)
char ch;
{
register int x,y;
struct body *nh;
alarm(0);
x = head->x;
y = head->y;
switch(ch)
{
case 'h': x--; break;
case 'j': y++; break;
case 'k': y--; break;
case 'l': x++; break;
case 'H': x--; running = RUNLEN; ch = tolower(ch); break;
case 'J': y++; running = RUNLEN/2; ch = tolower(ch); break;
case 'K': y--; running = RUNLEN/2; ch = tolower(ch); break;
case 'L': x++; running = RUNLEN; ch = tolower(ch); break;
case '\f': setup(); return;
case CNTRL('Z'): suspend(); return;
case CNTRL('C'): crash(); return;
case CNTRL('D'): crash(); return;
default: if (! running) alarm(1);
return;
}
lastch = ch;
if (growing == 0)
{
display(tail, ' ');
tail->next->prev = NULL;
nh = tail->next;
free(tail);
tail = nh;
}
else growing--;
display(head, BODY);
wmove(tv, y, x);
if (isdigit(ch = winch(tv)))
{
growing += ch-'0';
prize();
score += growing;
running = 0;
wmove(stw, 0, 68);
wprintw(stw, "Score: %3d", score);
wrefresh(stw);
}
else if(ch != ' ') crash();
nh = newlink();
nh->next = NULL;
nh->prev = head;
head->next = nh;
nh->y = y;
nh->x = x;
display(nh, HEAD);
head = nh;
if (!(slow && running))
wrefresh(tv);
if (!running)
alarm(1);
}
crash()
{
sleep(2);
clear();
move(23, 0);
refresh();
printf("Well, you ran into something and the game is over.\n");
printf("Your final score was %d\n", score);
leave();
}
void
suspend()
{
char *sh;
move(LINES-1, 0);
refresh();
endwin();
fflush(stdout);
kill(getpid(), SIGTSTP);
signal(SIGTSTP, suspend);
crmode();
noecho();
setup();
}
setup()
{
clear();
refresh();
touchwin(stw);
wrefresh(stw);
touchwin(tv);
wrefresh(tv);
alarm(1);
}