int
otto(int y, int x, char face, char *buf, size_t buflen)
{
int i;
if (usleep(Otto_pause) < 0)
panic("usleep");
/* save away parameters so other functions may use/update info */
switch (face) {
case '^': facing = NORTH; break;
case '<': facing = WEST; break;
case 'v': facing = SOUTH; break;
case '>': facing = EAST; break;
default: panic("unknown face");
}
row = y; col = x;
been_there[row][col] |= 1 << facing;
/* initially no commands to be sent */
comlen = 0;
/* find something to do */
look_around();
for (i = 0; i < NUMDIRECTIONS; i++) {
if (strchr(OPPONENT, flbr[i].what) != NULL) {
attack(i, &flbr[i]);
memset(been_there, 0, sizeof been_there);
goto done;
}
}
if (strchr(SHOTS, bitem.what) != NULL && !(bitem.what & ON_SIDE)) {
duck(BACK);
memset(been_there, 0, sizeof been_there);
} else if (go_for_ammo(BOOT_PAIR)) {
memset(been_there, 0, sizeof been_there);
} else if (go_for_ammo(BOOT)) {
memset(been_there, 0, sizeof been_there);
} else if (go_for_ammo(GMINE))
memset(been_there, 0, sizeof been_there);
else if (go_for_ammo(MINE))
memset(been_there, 0, sizeof been_there);
else
wander();
done:
if (comlen) {
if (comlen > buflen)
panic("not enough buffer space");
memcpy(buf, command, comlen);
}
return comlen;
}
/**
* Implements the game logic of a otto-matic player located at a
* given coordinate with a given orientation.
* @param[in] y A coordinate.
* @param[in] x A coordinate.
* @param[in] face The orientation of the player.
* [PSR]
*/
void otto(int y,int x,char face) {
int i;
struct sigaction handler, old_handler; /* Added to substitute deprecated signals functions. [PSR] */
sigset_t old_mask, sig_mask; /* Added to substitute deprecated signals functions. [PSR] */
bool done;
# ifdef DEBUG
if (debug == NULL) {
debug = fopen("bug", "w");
setbuf(debug, NULL);
}
fprintf(debug, "\n%c(%d,%d)", face, y, x);
# endif
handler.sa_handler=&empty_handler; /* Added to substitute deprecated signals functions. [PSR] */
sigaction(SIGALRM, &handler, &old_handler);/* Added to substitute deprecated signals functions. [PSR] */
sigemptyset(&sig_mask);/* Added to substitute deprecated signals functions. [PSR] */
sigaddset(&sig_mask, SIGALRM);/* Added to substitute deprecated signals functions. [PSR] */
sigprocmask(SIG_BLOCK, &sig_mask, &old_mask);/* Added to substitute deprecated signals functions. [PSR] */
setitimer(ITIMER_REAL, &pause_time, NULL);/* Added to substitute deprecated signals functions. [PSR] */
sigsuspend(&old_mask);/* Added to substitute deprecated signals functions. [PSR] */
sigprocmask(SIG_SETMASK, &old_mask, NULL);/* Added to substitute deprecated signals functions. [PSR] */
/* save away parameters so other functions may use/update info */
switch (face) {
case '^': facing = NORTH; break;
case '<': facing = WEST; break;
case 'v': facing = SOUTH; break;
case '>': facing = EAST; break;
default: abort();
}
row = y; col = x;
been_there[row][col] |= 1 << facing;
/* initially no commands to be sent */
comlen = 0;
/* find something to do */
look_around();
done=false;
for (i = 0; i < NUMDIRECTIONS; i++) {
if (strchr(OPPONENT, flbr[i].what) != NULL) {
attack(i, &flbr[i]);
memset(been_there, 0, sizeof been_there);
done=true;
break;
}
}
if(!done) {
if (strchr(SHOTS, bitem.what) != NULL && !(bitem.what & ON_SIDE)) {
duck(BACK);
memset(been_there, 0, sizeof been_there);
# ifdef BOOTS
} else if (go_for_ammo(BOOT_PAIR)) {
memset(been_there, 0, sizeof been_there);
} else if (go_for_ammo(BOOT)) {
memset(been_there, 0, sizeof been_there);
# endif
} else if (go_for_ammo(GMINE)) {
memset(been_there, 0, sizeof been_there);
}
else if (go_for_ammo(MINE)) {
memset(been_there, 0, sizeof been_there);
}
else {
wander();
}
}
write_and_push(main_socket, command, comlen);
otto_count += comlen;
# ifdef DEBUG
(void) fwrite(command, 1, comlen, debug);
# endif
}
