* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id: util.c,v 1.27 1996/02/09 08:22:23 mhw Exp $
*/
#include "netris.h"
#include <sys/time.h>
#include <netdb.h>
#include <errno.h>
+#include <setjmp.h>
-static MyEventType AlarmGenFunc(EventGenRec *gen, MyEvent *event);
+#include "util.h"
-static EventGenRec alarmGen =
- { &alarmGen, 0, FT_read, -1, AlarmGenFunc, EM_alarm };
+static MyEventType AlarmGenFunc(EventGenRec *gen, MyEvent *event);
+static EventGenRec alarmGen = {
+ &alarmGen, 0, FT_read, -1, AlarmGenFunc, EM_alarm
+};
static EventGenRec *nextGen = &alarmGen;
-static myRandSeed = 1;
+static int myRandSeed = 1;
-static struct timeval baseTimeval;
+static long baseTimeval;
-ExtFunc void InitUtil(void)
-{
- if (initSeed)
- SRandom(initSeed);
- else
- SRandom(time(0));
- signal(SIGINT, CatchInt);
- ResetBaseTime();
-}
-ExtFunc void ResetBaseTime(void)
-{
- gettimeofday(&baseTimeval, NULL);
-}
-
-ExtFunc void AtExit(void (*handler)(void))
+void AtExit(void (*handler)(void))
{
#ifdef HAS_ON_EXIT
on_exit((void *)handler, NULL);
#endif
}
-ExtFunc void Usage(void)
-{
- fprintf(stderr,
- "Netris version %s (C) 1994,1995,1996 Mark H. Weaver <mhw@netris.org>\n"
- "Usage: netris <options>\n"
- " -h Print usage information\n"
- " -w Wait for connection\n"
- " -c <host> Initiate connection\n"
- " -p <port> Set port number (default is %d)\n"
- " -k <keys> Remap keys. The argument is a prefix of the string\n"
- " containing the keys in order: left, rotate, right, drop,\n"
- " down-faster, toggle-spying, pause, faster, redraw.\n"
- " \"^\" prefixes controls. (default is \"%s\")\n"
- " -i <sec> Set the step-down interval, in seconds\n"
- " -r <robot> Execute <robot> (a command) as a robot controlling\n"
- " the game instead of the keyboard\n"
- " -F Use fair robot interface\n"
- " -s <seed> Start with given random seed\n"
- " -D Drops go into drop mode\n"
- " This means that sliding off a cliff after a drop causes\n"
- " another drop automatically\n"
- " -S Disable standout mode (inverse/bold) for slow terminals\n"
- " -H Show distribution and warranty information\n"
- " -R Show rules\n",
- version_string, DEFAULT_PORT, DEFAULT_KEYS);
-}
+///////////// HELP MESSAGES /////////////
-ExtFunc void DistInfo(void)
+void Header(void)
{
fprintf(stderr,
- "Netris version %s (C) 1994,1995,1996 Mark H. Weaver <mhw@netris.org>\n"
- "\n"
- "This program is free software; you can redistribute it and/or modify\n"
- "it under the terms of the GNU General Public License as published by\n"
- "the Free Software Foundation; either version 2 of the License, or\n"
- "(at your option) any later version.\n"
- "\n"
- "This program is distributed in the hope that it will be useful,\n"
- "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
- "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
- "GNU General Public License for more details.\n"
- "\n"
- "You should have received a copy of the GNU General Public License\n"
- "along with this program; if not, write to the Free Software\n"
- "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n",
- version_string);
+ "NETRIS %s\t(c) 1994-1996,1999 Mark H. Weaver <mhw@netris.org>\n"
+ " \t(c) 2002 Shiar <shiar@shiar.org>\n\n",
+ version_string
+ );
}
-ExtFunc void Rules(void)
+void DistInfo(void)
{
fprintf(stderr,
- "Netris version %s rules\n"
- "\n"
- "Two player mode\n"
- "---------------\n"
- "It's just like normal T*tris except that when you clear more than\n"
- "one row with a single piece, the other player's board is moved up\n"
- "and junk rows are added to the bottom. If you clear 2, 3 or 4\n"
- "rows, 1, 2 or 4 junk rows are added to your opponent's board,\n"
- "respectively. The junk rows have exactly one empty column.\n"
- "For each group of junk rows given, the empty columns will line\n"
- "up. This is intentional.\n"
- "\n"
- "The longest surviving player wins the game.\n"
- "\n"
- "One player mode\n"
- "---------------\n"
- "This mode is currently very boring, because there's no scoring\n"
- "and it never gets any faster. This will be rectified at some point.\n"
- "I'm not very motivated to do it right now because I'm sick of one\n"
- "player T*tris. For now, use the \"f\" key (by default) to make the\n"
- "game go faster. Speedups cannot be reversed for the remainder of\n"
- "the game.\n",
- version_string);
+ "This program is free software; you can redistribute it and/or modify\n"
+ "it under the terms of the GNU General Public License as published by\n"
+ "the Free Software Foundation; either version 2 of the License, or\n"
+ "(at your option) any later version.\n"
+ "\n"
+ "This program is distributed in the hope that it will be useful,\n"
+ "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+ "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
+ "GNU General Public License for more details.\n"
+ "\n"
+ "You should have received a copy of the GNU General Public License\n"
+ "along with this program; if not, write to the Free Software\n"
+ "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
+ "\n"
+ );
}
+///////////// RANDOM /////////////
+
/*
* My really crappy random number generator follows
* Should be more than sufficient for our purposes though
*/
-ExtFunc void SRandom(int seed)
+void SRandom(int seed)
{
- initSeed = seed;
+ Game.seed = seed;
myRandSeed = seed % 31751 + 1;
}
-ExtFunc int Random(int min, int max1)
-{
+int Random(int min, int max1)
+{ //return a random value
myRandSeed = (myRandSeed * 31751 + 15437) % 32767;
return myRandSeed % (max1 - min) + min;
}
-ExtFunc int MyRead(int fd, void *data, int len)
+///////////// I/O /////////////
+
+int MyRead(int fd, void *data, int len)
{
int result, left;
return len;
}
-ExtFunc int MyWrite(int fd, void *data, int len)
+int MyWrite(int fd, void *data, int len)
{
int result, left;
return len;
}
-ExtFunc void NormalizeTime(struct timeval *tv)
+///////////// CONFIG /////////////
+
+void WriteConf(void)
+{
+ FILE *file_out;
+
+ file_out = fopen(CONFIG_FILE, "w");
+ if (file_out == NULL) {
+ perror("Error writing config file");
+ exit(1);
+ }
+
+ fprintf(file_out, "### NETRIS %s Config file ###\n\n", version_string);
+
+ fclose(file_out);
+ fprintf(stderr, "Wrote new game configuration to %s\n", CONFIG_FILE);
+}
+
+///////////// TIME /////////////
+
+void NormalizeTime(struct timeval *tv)
{
tv->tv_sec += tv->tv_usec / 1000000;
tv->tv_usec %= 1000000;
}
}
-ExtFunc void CatchInt(int sig)
-{
- exit(0);
-}
-
-ExtFunc void CatchAlarm(int sig)
+void CatchAlarm(int sig)
{
alarmGen.ready = 1;
signal(SIGALRM, CatchAlarm);
return E_alarm;
}
-ExtFunc long CurTimeval(void)
+void SetTimeval(struct timeval *tv, long usec)
+{
+ tv->tv_sec = usec / 1000000;
+ tv->tv_usec = usec % 1000000;
+}
+
+long GetTimeval(struct timeval *tv)
+{
+ return tv->tv_sec * 1000000 + tv->tv_usec;
+}
+
+long AbsTimeval(void)
{
struct timeval tv;
gettimeofday(&tv, NULL);
- tv.tv_sec -= baseTimeval.tv_sec;
- tv.tv_usec -= baseTimeval.tv_usec;
return GetTimeval(&tv);
}
-ExtFunc void SetTimeval(struct timeval *tv, long usec)
-{
- tv->tv_sec = usec / 1000000;
- tv->tv_usec = usec % 1000000;
+void ResetBaseTime(void)
+{ //Reset the timer
+ baseTimeval = AbsTimeval();
+}
+
+void PauseTime(void)
+{ //Pause the timer
+ baseTimeval -= AbsTimeval();
}
-ExtFunc long GetTimeval(struct timeval *tv)
+void ResumeTime(void)
+{ //Unpause timer
+ baseTimeval += AbsTimeval();
+}
+
+long CurTimeval(void)
{
- return tv->tv_sec * 1000000 + tv->tv_usec;
+ return AbsTimeval() - baseTimeval;
}
static long SetITimer1(long interval, long value)
return GetTimeval(&old.it_value);
}
-ExtFunc long SetITimer(long interval, long value)
+long SetITimer(long interval, long value)
{
long old;
return old;
}
-ExtFunc volatile void die(char *msg)
+///////////// ... /////////////
+
+volatile void die(char *msg)
{
perror(msg);
exit(1);
}
-ExtFunc volatile void fatal(char *msg)
+volatile void fatal(char *msg)
{
fprintf(stderr, "%s\n", msg);
exit(1);
}
-ExtFunc void BlockSignals(MySigSet *saved, ...)
+void BlockSignals(MySigSet *saved, ...)
{
MySigSet set;
va_list args;
va_end(args);
}
-ExtFunc void RestoreSignals(MySigSet *saved, MySigSet *set)
+void RestoreSignals(MySigSet *saved, MySigSet *set)
{
#ifdef HAS_SIGPROCMASK
sigprocmask(SIG_SETMASK, set, saved);
#endif
}
-ExtFunc void AddEventGen(EventGenRec *gen)
+///////////// EVENTS /////////////
+
+void AddEventGen(EventGenRec *gen)
{
assert(gen->next == NULL);
gen->next = nextGen->next;
nextGen->next = gen;
}
-ExtFunc void RemoveEventGen(EventGenRec *gen)
+void RemoveEventGen(EventGenRec *gen)
{
- assert(gen->next != NULL);
- while (nextGen->next != gen)
- nextGen = nextGen->next;
- nextGen->next = gen->next;
- gen->next = NULL;
+ // assert(gen->next != NULL); /* Be more forgiving, for SIGINTs */
+ if (gen->next) {
+ while (nextGen->next != gen)
+ nextGen = nextGen->next;
+ nextGen->next = gen->next;
+ gen->next = NULL;
+ }
}
-ExtFunc MyEventType WaitMyEvent(MyEvent *event, int mask)
-{
+MyEventType WaitMyEvent(MyEvent *event, int mask)
+{ //poll
int i, retry = 0;
fd_set fds[FT_len];
EventGenRec *gen;
int result, anyReady, anySet;
struct timeval tv;
- /* XXX In certain circumstances, this routine does polling */
for (;;) {
for (i = 0; i < FT_len; ++i)
FD_ZERO(&fds[i]);
tv.tv_sec = 0;
tv.tv_usec = (retry && !anyReady) ? 500000 : 0;
result = select(FD_SETSIZE, &fds[FT_read], &fds[FT_write],
- &fds[FT_except], anyReady ? &tv : NULL);
+ &fds[FT_except], anyReady ? &tv : NULL);
}
else {
if (retry && !anyReady)
}
gen = nextGen;
do {
- if ((gen->mask & mask)
- && (gen->ready || (result > 0 && gen->fd >= 0
- && FD_ISSET(gen->fd, &fds[gen->fdType])))) {
+ if ((gen->mask & mask) && (gen->ready || (
+ result > 0 && gen->fd >= 0
+ && FD_ISSET(gen->fd, &fds[gen->fdType])
+ ))) {
gen->ready = 0;
event->type = gen->func(gen, event);
if (event->type != E_none) {
}
}
-/*
- * vi: ts=4 ai
- * vim: noai si
- */
git.shiar.nl / netris.git / blobdiff