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support arrow keys (cgd@netbsd.org); use select() rather than alarm() for

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timing
This commit is contained in:
pjanzen 2000-01-25 07:06:41 +00:00
parent 1c65590bd3
commit ecb90f8a2b
1 changed files with 47 additions and 33 deletions
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80
games/worm/worm.c
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@ -1,4 +1,4 @@
/* $OpenBSD: worm.c,v 1.9 1999/09/03 09:35:24 hugh Exp $ */
/* $OpenBSD: worm.c,v 1.10 2000/01/25 07:06:41 pjanzen Exp $ */
/*
* Copyright (c) 1980, 1993
@ -43,7 +43,7 @@ static char copyright[] =
#if 0
static char sccsid[] = "@(#)worm.c 8.1 (Berkeley) 5/31/93";
#else
static char rcsid[] = "$OpenBSD: worm.c,v 1.9 1999/09/03 09:35:24 hugh Exp $";
static char rcsid[] = "$OpenBSD: worm.c,v 1.10 2000/01/25 07:06:41 pjanzen Exp $";
#endif
#endif /* not lint */
@ -52,12 +52,13 @@ static char rcsid[] = "$OpenBSD: worm.c,v 1.9 1999/09/03 09:35:24 hugh Exp $";
* UCSC
*/
#include <sys/types.h>
#include <ctype.h>
#include <curses.h>
#include <err.h>
#include <signal.h>
#include <stdlib.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#define HEAD '@'
@ -79,7 +80,7 @@ int running = 0;
int slow = 0;
int score = 0;
int start_len = LENGTH;
char lastch;
int lastch;
char outbuf[BUFSIZ];
void crash __P((void));
@ -88,33 +89,36 @@ void leave __P((int));
void life __P((void));
void newpos __P((struct body *));
struct body *newlink __P((void));
void process __P((char));
void process __P((int));
void prize __P((void));
int rnd __P((int));
void setup __P((void));
void suspend __P((int));
void wake __P((int));
int
main(argc, argv)
int argc;
char **argv;
{
char ch;
int retval;
struct timeval t, tod;
struct timezone tz;
fd_set rset;
/* revoke */
setegid(getgid());
setgid(getgid());
FD_ZERO(&rset);
setbuf(stdout, outbuf);
srandom(getpid());
signal(SIGALRM, wake);
signal(SIGINT, leave);
signal(SIGQUIT, leave);
signal(SIGTSTP, suspend); /* process control signal */
initscr();
crmode();
cbreak();
noecho();
keypad(stdscr, TRUE);
slow = (baudrate() <= 1200);
clear();
if (argc == 2)
@ -142,9 +146,17 @@ main(argc, argv)
}
else
{
fflush(stdout);
if (read(0, &ch, 1) >= 0)
process(ch);
/* fflush(stdout); */
/* Delay could be a command line option */
t.tv_sec = 1;
t.tv_usec = 0;
(void)gettimeofday(&tod, &tz);
FD_SET(STDIN_FILENO, &rset);
retval = select(STDIN_FILENO + 1, &rset, NULL, NULL, &t);
if (retval > 0)
process(getch());
else
process(lastch);
}
}
}
@ -195,15 +207,6 @@ leave(dummy)
exit(0);
}
void
wake(dummy)
int dummy;
{
signal(SIGALRM, wake);
fflush(stdout);
process(lastch);
}
int
rnd(range)
int range;
@ -235,20 +238,35 @@ prize()
void
process(ch)
char ch;
int 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;
#ifdef KEY_LEFT
case KEY_LEFT:
#endif
case 'h':
x--; break;
#ifdef KEY_DOWN
case KEY_DOWN:
#endif
case 'j':
y++; break;
#ifdef KEY_UP
case KEY_UP:
#endif
case 'k':
y--; break;
#ifdef KEY_RIGHT
case KEY_RIGHT:
#endif
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;
@ -257,8 +275,7 @@ process(ch)
case CNTRL('Z'): suspend(0); return;
case CNTRL('C'): crash(); return;
case CNTRL('D'): crash(); return;
default: if (! running) alarm(1);
return;
default: return;
}
lastch = ch;
if (growing == 0)
@ -295,8 +312,6 @@ process(ch)
wmove(tv, head->y, head->x);
wrefresh(tv);
}
if (!running)
alarm(1);
}
struct body *
@ -332,7 +347,7 @@ suspend(dummy)
fflush(stdout);
kill(getpid(), SIGSTOP);
signal(SIGTSTP, suspend);
crmode();
cbreak();
noecho();
setup();
}
@ -346,5 +361,4 @@ setup()
wrefresh(stw);
touchwin(tv);
wrefresh(tv);
alarm(1);
}