games/robots/main.c

   1 /*      $NetBSD: main.c,v 1.31 2009/08/05 19:34:09 christos 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. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\
  35  The Regents of the University of California.  All rights reserved.");
  36 #endif /* not lint */
  37
  38 #ifndef lint
  39 #if 0
  40 static char sccsid[] = "@(#)main.c      8.1 (Berkeley) 5/31/93";
  41 #else
  42 __RCSID("$NetBSD: main.c,v 1.31 2009/08/05 19:34:09 christos Exp $");
  43 #endif
  44 #endif /* not lint */
  45
  46 #include <ctype.h>
  47 #include <curses.h>
  48 #include <err.h>
  49 #include <errno.h>
  50 #include <fcntl.h>
  51 #include <signal.h>
  52 #include <stdlib.h>
  53 #include <time.h>
  54 #include <unistd.h>
  55 #include "robots.h"
  56
  57 extern const char *Scorefile;
  58 extern int Max_per_uid;
  59
  60 static bool another(void);
  61
  62 int
  63 main(int argc, char **argv)
  64 {
  65         const char *word;
  66         bool show_only;
  67         int score_wfd; /* high score writable file descriptor */
  68         int score_err = 0; /* hold errno from score file open */
  69         int maximum = 0;
  70         int ch, i;
  71
  72         score_wfd = open(Scorefile, O_RDWR);
  73         if (score_wfd < 0)
  74                 score_err = errno;
  75         else if (score_wfd < 3)
  76                 exit(1);
  77
  78         /* Revoke setgid privileges */
  79         setgid(getgid());
  80
  81         show_only = false;
  82         Num_games = 1;
  83
  84         while ((ch = getopt(argc, argv, "Aajnrst")) != -1) {
  85                 switch (ch) {
  86                     case 'A':
  87                         Auto_bot = true;
  88                         break;
  89                     case 'a':
  90                         Start_level = 4;
  91                         break;
  92                     case 'j':
  93                         Jump = true;
  94                         break;
  95                     case 'n':
  96                         Num_games++;
  97                         break;
  98                     case 'r':
  99                         Real_time = true;
 100                         break;
 101                     case 's':
 102                         show_only = true;
 103                         break;
 104                     case 't':
 105                         Teleport = true;
 106                         break;
 107                     default:
 108                         errx(1,
 109                             "Usage: robots [-Aajnrst] [maximum] [scorefile]");
 110                         break;
 111                 }
 112         }
 113
 114         for (i = optind; i < argc; i++) {
 115                 word = argv[i];
 116                 if (isdigit((unsigned char)word[0])) {
 117                         maximum = atoi(word);
 118                 } else {
 119                         Scorefile = word;
 120                         Max_per_uid = maximum;
 121                         if (score_wfd >= 0)
 122                                 close(score_wfd);
 123                         score_wfd = open(Scorefile, O_RDWR);
 124                         if (score_wfd < 0)
 125                                 score_err = errno;
 126 #ifdef FANCY
 127                         word = strrchr(Scorefile, '/');
 128                         if (word == NULL)
 129                                 word = Scorefile;
 130                         if (strcmp(word, "pattern_roll") == 0)
 131                                 Pattern_roll = true;
 132                         else if (strcmp(word, "stand_still") == 0)
 133                                 Stand_still = true;
 134                         if (Pattern_roll || Stand_still)
 135                                 Teleport = true;
 136 #endif
 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         if (!initscr())
 154                 errx(0, "couldn't initialize screen");
 155         signal(SIGINT, quit);
 156         cbreak();
 157         noecho();
 158         nonl();
 159         if (LINES != Y_SIZE || COLS != X_SIZE) {
 160                 if (LINES < Y_SIZE || COLS < X_SIZE) {
 161                         endwin();
 162                         printf("Need at least a %dx%d screen\n",
 163                             Y_SIZE, X_SIZE);
 164                         exit(1);
 165                 }
 166                 delwin(stdscr);
 167                 stdscr = newwin(Y_SIZE, X_SIZE, 0, 0);
 168         }
 169
 170         srandom(time(NULL));
 171         if (Real_time)
 172                 signal(SIGALRM, move_robots);
 173         do {
 174                 while (Num_games--) {
 175                         init_field();
 176                         for (Level = Start_level; !Dead; Level++) {
 177                                 make_level();
 178                                 play_level();
 179                                 if (Auto_bot)
 180                                         sleep(1);
 181                         }
 182                         move(My_pos.y, My_pos.x);
 183                         printw("AARRrrgghhhh....");
 184                         refresh();
 185                         if (Auto_bot)
 186                                 sleep(1);
 187                         score(score_wfd);
 188                         if (Auto_bot)
 189                                 sleep(1);
 190                         refresh();
 191                 }
 192                 Num_games = 1;
 193         } while (!Auto_bot && another());
 194         quit(0);
 195         /* NOTREACHED */
 196         return(0);
 197 }
 198
 199 /*
 200  * quit:
 201  *      Leave the program elegantly.
 202  */
 203 void
 204 quit(int dummy __unused)
 205 {
 206         endwin();
 207         exit(0);
 208         /* NOTREACHED */
 209 }
 210
 211 /*
 212  * another:
 213  *      See if another game is desired
 214  */
 215 static bool
 216 another(void)
 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 }