games/phantasia/setup.c

   1 /*
   2  * setup.c - set up all files for Phantasia
   3  *
   4  * $FreeBSD: src/games/phantasia/setup.c,v 1.11 1999/11/16 02:57:34 billf Exp $
   5  */
   6 /*#include "include.h"*/
   7 #include <sys/param.h>
   8 #include <sys/types.h>
   9 #include <sys/stat.h>
  10 #include <fcntl.h>
  11 #include <math.h>
  12 #include <setjmp.h>
  13 #include <signal.h>
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include <unistd.h>
  18
  19 #include "include.h"
  20
  21 void Error(const char *, const char *) __dead2;
  22
  23 static const char *const files[] = {            /* all files to create */
  24         _SPATH_MONST,
  25         _SPATH_PEOPLE,
  26         _SPATH_MESS,
  27         _SPATH_LASTDEAD,
  28         _SPATH_MOTD,
  29         _SPATH_GOLD,
  30         _SPATH_VOID,
  31         _SPATH_SCORE,
  32         NULL,
  33 };
  34
  35 const char *monsterfile = "monsters.asc";
  36
  37 /*
  38  * FUNCTION: setup files for Phantasia 3.3.2
  39  *
  40  * GLOBAL INPUTS: Curmonster, _iob[], Databuf[], *Monstfp, Enrgyvoid
  41  *
  42  * GLOBAL OUTPUTS: Curmonster, Databuf[], *Monstfp, Enrgyvoid
  43  *
  44  * DESCRIPTION:
  45  *      This program tries to verify the parameters specified in
  46  *      the Makefile.
  47  *
  48  *      Create all necessary files.  Note that nothing needs to be
  49  *      put in these files.
  50  *      Also, the monster binary data base is created here.
  51  */
  52
  53 int
  54 main(int argc, char *argv[])
  55 {
  56         const char *const *filename;    /* for pointing to file names */
  57         int     fd;                     /* file descriptor */
  58         FILE    *fp;                    /* for opening files */
  59         struct stat     fbuf;           /* for getting files statistics */
  60         int ch;
  61
  62         while ((ch = getopt(argc, argv, "m:")) != -1)
  63                 switch(ch) {
  64                 case 'm':
  65                         monsterfile = optarg;
  66                         break;
  67                 case '?':
  68                 default:
  69                         break;
  70                 }
  71         argc -= optind;
  72         argv += optind;
  73
  74         srandomdev();
  75
  76 #if 0
  77         umask(0117);            /* only owner can read/write created files */
  78 #endif
  79
  80         /* try to create data files */
  81         filename = &files[0];
  82         /* create each file */
  83         while (*filename != NULL) {
  84                 /* file exists; remove it */
  85                 if (stat(*filename, &fbuf) == 0) {
  86                         /* do not reset character file if it already exists */
  87                         if (!strcmp(*filename, _SPATH_PEOPLE)) {
  88                                 ++filename;
  89                                 continue;
  90                         }
  91
  92                         if (unlink(*filename) < 0)
  93                                 Error("Cannot unlink %s.\n", *filename);
  94                         /* NOTREACHED */
  95                 }
  96
  97                 if ((fd = creat(*filename, 0666)) < 0)
  98                         Error("Cannot create %s.\n", *filename);
  99                 /* NOTREACHED */
 100
 101                 close(fd);                      /* close newly created file */
 102
 103                 ++filename;                     /* process next file */
 104         }
 105
 106         /* put holy grail info into energy void file */
 107         Enrgyvoid.ev_active = TRUE;
 108         Enrgyvoid.ev_x = ROLL(-1.0e6, 2.0e6);
 109         Enrgyvoid.ev_y = ROLL(-1.0e6, 2.0e6);
 110         if ((fp = fopen(_SPATH_VOID, "w")) == NULL)
 111                 Error("Cannot update %s.\n", _SPATH_VOID);
 112         else {
 113                 fwrite(&Enrgyvoid, SZ_VOIDSTRUCT, 1, fp);
 114                 fclose(fp);
 115         }
 116
 117         /* create binary monster data base */
 118         if ((Monstfp = fopen(_SPATH_MONST, "w")) == NULL)
 119                 Error("Cannot update %s.\n", _SPATH_MONST);
 120         else if ((fp = fopen(monsterfile, "r")) == NULL) {
 121                 fclose(Monstfp);
 122                 Error("cannot open %s to create monster database.\n", "monsters.asc");
 123         } else {
 124                 Curmonster.m_o_strength =
 125                     Curmonster.m_o_speed =
 126                     Curmonster.m_maxspeed =
 127                     Curmonster.m_o_energy =
 128                     Curmonster.m_melee =
 129                     Curmonster.m_skirmish = 0.0;
 130
 131                 /* read in text file, convert to binary */
 132                 while (fgets(Databuf, SZ_DATABUF, fp) != NULL) {
 133                         sscanf(&Databuf[24], "%lf%lf%lf%lf%lf%d%d%lf",
 134                             &Curmonster.m_strength, &Curmonster.m_brains,
 135                             &Curmonster.m_speed, &Curmonster.m_energy,
 136                             &Curmonster.m_experience, &Curmonster.m_treasuretype,
 137                             &Curmonster.m_type, &Curmonster.m_flock);
 138                         Databuf[24] = '\0';
 139                         strcpy(Curmonster.m_name, Databuf);
 140                         fwrite((char *) &Curmonster, SZ_MONSTERSTRUCT, 1, Monstfp);
 141                 }
 142                 fclose(fp);
 143                 fclose(Monstfp);
 144         }
 145
 146         exit(0);
 147         /* NOTREACHED */
 148 }
 149
 150 /*
 151  * FUNCTION: print an error message, and exit
 152  *
 153  * ARGUMENTS:
 154  *      char *str - format string for printf()
 155  *      char *file - file which caused error
 156  *
 157  * GLOBAL INPUTS: _iob[]
 158  *
 159  * DESCRIPTION:
 160  *      Print an error message, then exit.
 161  */
 162
 163 void
 164 Error(const char *str, const char *file)
 165 {
 166         fprintf(stderr, "Error: ");
 167         fprintf(stderr, str, file);
 168         perror(file);
 169         exit(1);
 170         /* NOTREACHED */
 171 }