robots/main.c

   1 /*      $NetBSD: main.c,v 1.18 2001/12/06 12:17:57 blymn Exp $  */
   2
   3 /*
   4  * Copyright (c) 1980, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
  39         The Regents of the University of California.  All rights reserved.\n");
  40 #endif /* not lint */
  41
  42 #ifndef lint
  43 #if 0
  44 static char sccsid[] = "@(#)main.c      8.1 (Berkeley) 5/31/93";
  45 #else
  46 __RCSID("$NetBSD: main.c,v 1.18 2001/12/06 12:17:57 blymn Exp $");
  47 #endif
  48 #endif /* not lint */
  49
  50 # include       "robots.h"
  51
  52 int main __P((int, char **));
  53
  54 extern const char       *Scorefile;
  55 extern int      Max_per_uid;
  56
  57 int
  58 main(ac, av)
  59         int     ac;
  60         char    **av;
  61 {
  62         const char      *sp;
  63         bool    bad_arg;
  64         bool    show_only;
  65         int             score_wfd; /* high score writable file descriptor */
  66         int             score_err = 0; /* hold errno from score file open */
  67
  68         score_wfd = open(Scorefile, O_RDWR);
  69         if (score_wfd < 0)
  70                 score_err = errno;
  71         else if (score_wfd < 3)
  72                 exit(1);
  73
  74         /* Revoke setgid privileges */
  75         setgid(getgid());
  76
  77         show_only = FALSE;
  78         Num_games = 1;
  79         if (ac > 1) {
  80                 bad_arg = FALSE;
  81                 for (++av; ac > 1 && *av[0]; av++, ac--)
  82                         if (av[0][0] != '-')
  83                                 if (isdigit(av[0][0]))
  84                                         Max_per_uid = atoi(av[0]);
  85                                 else {
  86                                         Scorefile = av[0];
  87                                         if (score_wfd >= 0)
  88                                                 close(score_wfd);
  89                                         score_wfd = open(Scorefile, O_RDWR);
  90                                         if (score_wfd < 0)
  91                                                 score_err = errno;
  92 # ifdef FANCY
  93                                         sp = strrchr(Scorefile, '/');
  94                                         if (sp == NULL)
  95                                                 sp = Scorefile;
  96                                         if (strcmp(sp, "pattern_roll") == 0)
  97                                                 Pattern_roll = TRUE;
  98                                         else if (strcmp(sp, "stand_still") == 0)
  99                                                 Stand_still = TRUE;
 100                                         if (Pattern_roll || Stand_still)
 101                                                 Teleport = TRUE;
 102 # endif
 103                                 }
 104                         else
 105                                 for (sp = &av[0][1]; *sp; sp++)
 106                                         switch (*sp) {
 107                                           case 'A':
 108                                                 Auto_bot = TRUE;
 109                                                 break;
 110                                           case 's':
 111                                                 show_only = TRUE;
 112                                                 break;
 113                                           case 'r':
 114                                                 Real_time = TRUE;
 115                                                 break;
 116                                           case 'a':
 117                                                 Start_level = 4;
 118                                                 break;
 119                                           case 'n':
 120                                                 Num_games++;
 121                                                 break;
 122                                           case 'j':
 123                                                 Jump = TRUE;
 124                                                 break;
 125                                           case 't':
 126                                                 Teleport = TRUE;
 127                                                 break;
 128
 129                                           default:
 130                                                 fprintf(stderr, "robots: unknown option: %c\n", *sp);
 131                                                 bad_arg = TRUE;
 132                                                 break;
 133                                         }
 134                 if (bad_arg) {
 135                         exit(1);
 136                         /* NOTREACHED */
 137                 }
 138         }
 139
 140         if (show_only) {
 141                 show_score();
 142                 exit(0);
 143                 /* NOTREACHED */
 144         }
 145
 146         if (score_wfd < 0) {
 147                 errno = score_err;
 148                 warn("%s", Scorefile);
 149                 warnx("High scores will not be recorded!");
 150                 sleep(2);
 151         }
 152
 153         initscr();
 154         signal(SIGINT, quit);
 155         cbreak();
 156         noecho();
 157         nonl();
 158         if (LINES != Y_SIZE || COLS != X_SIZE) {
 159                 if (LINES < Y_SIZE || COLS < X_SIZE) {
 160                         endwin();
 161                         printf("Need at least a %dx%d screen\n",
 162                             Y_SIZE, X_SIZE);
 163                         exit(1);
 164                 }
 165                 delwin(stdscr);
 166                 stdscr = newwin(Y_SIZE, X_SIZE, 0, 0);
 167         }
 168
 169         srand(getpid());
 170         if (Real_time)
 171                 signal(SIGALRM, move_robots);
 172         do {
 173                 while (Num_games--) {
 174                         init_field();
 175                         for (Level = Start_level; !Dead; Level++) {
 176                                 make_level();
 177                                 play_level();
 178                                 if (Auto_bot)
 179                                         sleep(1);
 180                         }
 181                         move(My_pos.y, My_pos.x);
 182                         printw("AARRrrgghhhh....");
 183                         refresh();
 184                         if (Auto_bot)
 185                                 sleep(1);
 186                         score(score_wfd);
 187                         if (Auto_bot)
 188                                 sleep(1);
 189                         refresh();
 190                 }
 191                 Num_games = 1;
 192         } while (!Auto_bot && another());
 193         quit(0);
 194         /* NOTREACHED */
 195         return(0);
 196 }
 197
 198 /*
 199  * quit:
 200  *      Leave the program elegantly.
 201  */
 202 void
 203 quit(dummy)
 204         int dummy __attribute__((__unused__));
 205 {
 206         endwin();
 207         exit(0);
 208         /* NOTREACHED */
 209 }
 210
 211 /*
 212  * another:
 213  *      See if another game is desired
 214  */
 215 bool
 216 another()
 217 {
 218         int     y;
 219
 220 #ifdef  FANCY
 221         if ((Stand_still || Pattern_roll) && !Newscore)
 222                 return TRUE;
 223 #endif
 224
 225         if (query("Another game?")) {
 226                 if (Full_clear) {
 227                         for (y = 1; y <= Num_scores; y++) {
 228                                 move(y, 1);
 229                                 clrtoeol();
 230                         }
 231                         refresh();
 232                 }
 233                 return TRUE;
 234         }
 235         return FALSE;
 236 }