games/larn/diag.c

   1 /*      diag.c          Larn is copyrighted 1986 by Noah Morgan. */
   2 /* $FreeBSD: src/games/larn/diag.c,v 1.5 1999/11/16 02:57:21 billf Exp $ */
   3 /* $DragonFly: src/games/larn/diag.c,v 1.5 2006/08/26 17:05:05 pavalos Exp $ */
   4 #include <sys/types.h>
   5 #include <sys/times.h>
   6 #include <sys/stat.h>
   7 #include "header.h"
   8 extern int rmst, maxitm, lasttime;
   9
  10 static void greedy(void);
  11 static void fsorry(void);
  12 static void fcheat(void);
  13
  14 static struct tms cputime;
  15
  16 /*
  17         ***************************
  18         DIAG -- dungeon diagnostics
  19         ***************************
  20
  21         subroutine to print out data for debugging
  22  */
  23 #ifdef EXTRA
  24 static int dcount(int);
  25 static void drawdiagscreen(void);
  26
  27 static int rndcount[16];
  28
  29 int
  30 diag(void)
  31 {
  32         int i, j;
  33         int hit, dam;
  34         cursors();
  35         lwclose();
  36         if (lcreat(diagfile) < 0) {     /* open the diagnostic file */
  37                 lcreat(NULL);
  38                 lprcat("\ndiagnostic failure\n");
  39                 return (-1);
  40         }
  41
  42         write(1, "\nDiagnosing . . .\n", 18);
  43         lprcat("\n\nBeginning of DIAG diagnostics ----------\n");
  44
  45 /* for the character attributes */
  46
  47         lprintf("\n\nPlayer attributes:\n\nHit points: %2d(%2d)", (long)c[HP], (long)c[HPMAX]);
  48         lprintf("\ngold: %d  Experience: %d  Character level: %d  Level in caverns: %d",
  49             (long)c[GOLD], (long)c[EXPERIENCE], (long)c[LEVEL], (long)level);
  50         lprintf("\nTotal types of monsters: %d", (long)MAXMONST + 8);
  51
  52         lprcat("\f\nHere's the dungeon:\n\n");
  53
  54         i = level;
  55         for (j = 0; j < MAXLEVEL + MAXVLEVEL; j++) {
  56                 newcavelevel(j);
  57                 lprintf("\nMaze for level %s:\n", levelname[level]);
  58                 diagdrawscreen();
  59         }
  60         newcavelevel(i);
  61
  62         lprcat("\f\nNow for the monster data:\n\n");
  63         lprcat("   Monster Name      LEV  AC   DAM  ATT  DEF    GOLD   HP     EXP   \n");
  64         lprcat("--------------------------------------------------------------------------\n");
  65         for (i = 0; i <= MAXMONST + 8; i++) {
  66                 lprintf("%19s  %2d  %3d ", monster[i].name, (long)monster[i].level, (long)monster[i].armorclass);
  67                 lprintf(" %3d  %3d  %3d  ", (long)monster[i].damage, (long)monster[i].attack, (long)monster[i].defense);
  68                 lprintf("%6d  %3d   %6d\n", (long)monster[i].gold, (long)monster[i].hitpoints, (long)monster[i].experience);
  69         }
  70
  71         lprcat("\n\nHere's a Table for the to hit percentages\n");
  72         lprcat("\n     We will be assuming that players level = 2 * monster level");
  73         lprcat("\n     and that the players dexterity and strength are 16.");
  74         lprcat("\n    to hit: if (rnd(22) < (2[monst AC] + your level + dex + WC/8 -1)/2) then hit");
  75         lprcat("\n    damage = rund(8) + WC/2 + STR - c[HARDGAME] - 4");
  76         lprcat("\n    to hit:  if rnd(22) < to hit  then player hits\n");
  77         lprcat("\n    Each entry is as follows:  to hit / damage / number hits to kill\n");
  78         lprcat("\n          monster     WC = 4         WC = 20        WC = 40");
  79         lprcat("\n---------------------------------------------------------------");
  80         for (i = 0; i <= MAXMONST + 8; i++) {
  81                 hit = 2 * monster[i].armorclass + 2 * monster[i].level + 16;
  82                 dam = 16 - c[HARDGAME];
  83                 lprintf("\n%20s   %2d/%2d/%2d       %2d/%2d/%2d       %2d/%2d/%2d",
  84                         monster[i].name,
  85                         (long)(hit / 2), (long)max(0, dam + 2), (long)(monster[i].hitpoints / (dam + 2) + 1),
  86                         (long)((hit + 2) / 2), (long)max(0, dam + 10), (long)(monster[i].hitpoints / (dam + 10) + 1),
  87                         (long)((hit + 5) / 2), (long)max(0, dam + 20), (long)(monster[i].hitpoints / (dam + 20) + 1));
  88         }
  89
  90         lprcat("\n\nHere's the list of available potions:\n\n");
  91         for (i = 0; i < MAXPOTION; i++)
  92                 lprintf("%20s\n", &potionhide[i][1]);
  93         lprcat("\n\nHere's the list of available scrolls:\n\n");
  94         for (i = 0; i < MAXSCROLL; i++)
  95                 lprintf("%20s\n", &scrollhide[i][1]);
  96         lprcat("\n\nHere's the spell list:\n\n");
  97         lprcat("spell          name           description\n");
  98         lprcat("-------------------------------------------------------------------------------------------\n\n");
  99         for (j = 0; j < SPNUM; j++) {
 100                 lprc(' ');
 101                 lprcat(spelcode[j]);
 102                 lprintf(" %21s  %s\n", spelname[j], speldescript[j]);
 103         }
 104
 105         lprcat("\n\nFor the c[] array:\n");
 106         for (j = 0; j < 100; j += 10) {
 107                 lprintf("\nc[%2d] = ", (long)j);
 108                 for (i = 0; i < 9; i++)
 109                         lprintf("%5d ", (long)c[i + j]);
 110         }
 111
 112         lprcat("\n\nTest of random number generator ----------------");
 113         lprcat("\n    for 25,000 calls divided into 16 slots\n\n");
 114
 115         for (i = 0; i < 16; i++)
 116                 rndcount[i] = 0;
 117         for (i = 0; i < 25000; i++)
 118                 rndcount[rund(16)]++;
 119         for (i = 0; i < 16; i++) {
 120                 lprintf("  %5d", (long)rndcount[i]);
 121                 if (i == 7)
 122                         lprc('\n');
 123         }
 124
 125         lprcat("\n\n");
 126         lwclose();
 127         lcreat(NULL);
 128         lprcat("Done Diagnosing . . .");
 129         return (0);
 130 }
 131 /*
 132         subroutine to count the number of occurrences of an object
 133  */
 134 static int
 135 dcount(int l)
 136 {
 137         int i, j, p;
 138         int k;
 139         k = 0;
 140         for (i = 0; i < MAXX; i++)
 141                 for (j = 0; j < MAXY; j++)
 142                         for (p = 0; p < MAXLEVEL; p++)
 143                                 if (cell[p * MAXX * MAXY + i * MAXY + j].item == l)
 144                                         k++;
 145         return (k);
 146 }
 147
 148 /*
 149         subroutine to draw the whole screen as the player knows it
 150  */
 151 static void
 152 diagdrawscreen(void)
 153 {
 154         int i, j, k;
 155
 156         /* for the east west walls of this line */
 157         for (i = 0; i < MAXY; i++) {
 158                 for (j = 0; j < MAXX; j++)
 159                         if (k = mitem[j][i])
 160                                 lprc(monstnamelist[k]);
 161                         else
 162                                 lprc(objnamelist[item[j][i]]);
 163                 lprc('\n');
 164         }
 165 }
 166 #endif
 167
 168 /*
 169         to save the game in a file
 170  */
 171 static time_t zzz = 0;
 172
 173 int
 174 savegame(char *fname)
 175 {
 176         int i, k;
 177         struct sphere *sp;
 178         struct stat statbuf;
 179
 180         nosignal = 1;
 181         lflush();
 182         savelevel();
 183         ointerest();
 184         if (lcreat(fname) < 0) {
 185                 lcreat(NULL);
 186                 lprintf("\nCan't open file <%s> to save game\n", fname);
 187                 nosignal = 0;
 188                 return (-1);
 189         }
 190
 191         set_score_output();
 192         lwrite((char *)beenhere, MAXLEVEL + MAXVLEVEL);
 193         for (k = 0; k < MAXLEVEL + MAXVLEVEL; k++)
 194                 if (beenhere[k])
 195                         lwrite((char *)&cell[k * MAXX * MAXY], sizeof(struct cel) * MAXY * MAXX);
 196         times(&cputime);        /* get cpu time */
 197         c[CPUTIME] += (cputime.tms_utime + cputime.tms_stime) / 60;
 198         lwrite((char *)&c[0], 100 * sizeof(long));
 199         lprint((long)gtime);
 200         lprc(level);
 201         lprc(playerx);
 202         lprc(playery);
 203         lwrite((char *)iven, 26);
 204         lwrite((char *)ivenarg, 26 * sizeof(short));
 205         for (k = 0; k < MAXSCROLL; k++)
 206                 lprc(scrollname[k][0]);
 207         for (k = 0; k < MAXPOTION; k++)
 208                 lprc(potionname[k][0]);
 209         lwrite((char *)spelknow, SPNUM);
 210         lprc(wizard);
 211         lprc(rmst);             /* random monster generation counter */
 212         for (i = 0; i < 90; i++)
 213                 lprc(itm_[i].qty);
 214         lwrite((char *)course, 25);
 215         lprc(cheat);
 216         lprc(VERSION);
 217         for (i = 0; i < MAXMONST; i++)
 218                 lprc(monster[i].genocided);     /* genocide info */
 219         /* save spheres of annihilation */
 220         for (sp = spheres; sp; sp = sp->p)
 221                 lwrite((char *)sp, sizeof(struct sphere));
 222         time(&zzz);
 223         lprint((long)(zzz - initialtime));
 224         lwrite((char *)&zzz, sizeof(long));
 225         if (fstat(io_outfd, &statbuf) < 0)
 226                 lprint(0L);
 227         else
 228                 lprint((long)statbuf.st_ino);   /* inode # */
 229         lwclose();
 230         lastmonst[0] = 0;
 231 #ifndef VT100
 232         setscroll();
 233 #endif /* VT100 */
 234         lcreat(NULL);
 235         nosignal = 0;
 236         return (0);
 237 }
 238
 239 void
 240 restoregame(char *fname)
 241 {
 242         int i, k;
 243         struct sphere *sp, *sp2;
 244         struct stat filetimes;
 245         cursors();
 246         lprcat("\nRestoring . . .");
 247         lflush();
 248         if (lopen(fname) <= 0) {
 249                 lcreat(NULL);
 250                 lprintf("\nCan't open file <%s>to restore game\n", fname);
 251                 nap(2000);
 252                 c[GOLD] = c[BANKACCOUNT] = 0;
 253                 died(-265);
 254                 return;
 255         }
 256         lrfill((char *)beenhere, MAXLEVEL + MAXVLEVEL);
 257         for (k = 0; k < MAXLEVEL + MAXVLEVEL; k++)
 258                 if (beenhere[k])
 259                         lrfill((char *)&cell[k * MAXX * MAXY], sizeof(struct cel) * MAXY * MAXX);
 260
 261         lrfill((char *)&c[0], 100 * sizeof(long));
 262         gtime = lrint_x();
 263         level = c[CAVELEVEL] = lgetc();
 264         playerx = lgetc();
 265         playery = lgetc();
 266         lrfill((char *)iven, 26);
 267         lrfill((char *)ivenarg, 26 * sizeof(short));
 268         for (k = 0; k < MAXSCROLL; k++)
 269                 scrollname[k] = lgetc() ? scrollhide[k] : "";
 270         for (k = 0; k < MAXPOTION; k++)
 271                 potionname[k] = lgetc() ? potionhide[k] : "";
 272         lrfill((char *)spelknow, SPNUM);
 273         wizard = lgetc();
 274         rmst = lgetc();         /* random monster creation flag */
 275
 276         for (i = 0; i < 90; i++)
 277                 itm_[i].qty = lgetc();
 278         lrfill((char *)course, 25);
 279         cheat = lgetc();
 280         if (VERSION != lgetc()) {       /* version number  */
 281                 cheat = 1;
 282                 lprcat("Sorry, But your save file is for an older version of larn\n");
 283                 nap(2000);
 284                 c[GOLD] = c[BANKACCOUNT] = 0;
 285                 died(-266);
 286                 return;
 287         }
 288
 289         for (i = 0; i < MAXMONST; i++)
 290                 monster[i].genocided = lgetc(); /* genocide info */
 291         for (sp = 0, i = 0; i < c[SPHCAST]; i++) {
 292                 sp2 = sp;
 293                 sp = malloc(sizeof(struct sphere));
 294                 if (sp == 0) {
 295                         write(2, "Can't malloc() for sphere space\n", 32);
 296                         break;
 297                 }
 298                 /* get spheres of annihilation */
 299                 lrfill((char *)sp, sizeof(struct sphere));
 300                 sp->p = 0;      /* null out pointer */
 301                 if (i == 0)
 302                         spheres = sp;   /* beginning of list */
 303                 else
 304                         sp2->p = sp;
 305         }
 306
 307         time(&zzz);
 308         initialtime = zzz - lrint_x();
 309         /* get the creation and modification time of file */
 310         fstat(io_infd, &filetimes);
 311         lrfill((char *)&zzz, sizeof(long));
 312         zzz += 6;
 313         if (filetimes.st_ctime > zzz)           /* file create time */
 314                 fsorry();
 315         else if (filetimes.st_mtime > zzz)      /* file modify time */
 316                 fsorry();
 317         if (c[HP] < 0) {
 318                 died(284);
 319                 return;
 320         }                       /* died a post mortem death */
 321
 322         oldx = oldy = 0;
 323         i = lrint_x();          /* inode # */
 324         if (i && (filetimes.st_ino != (unsigned)i))
 325                 fsorry();
 326         lrclose();
 327         if (strcmp(fname, ckpfile) == 0) {
 328                 if (lappend(fname) < 0)
 329                         fcheat();
 330                 else {
 331                         lprc(' ');
 332                         lwclose();
 333                 }
 334                 lcreat(NULL);
 335         } else if (unlink(fname) < 0)
 336                 fcheat();       /* can't unlink save file */
 337         /* for the greedy cheater checker */
 338         for (k = 0; k < 6; k++)
 339                 if (c[k] > 99)
 340                         greedy();
 341         if (c[HPMAX] > 999 || c[SPELLMAX] > 125)
 342                 greedy();
 343         /* if patch up lev 25 player */
 344         if (c[LEVEL] == 25 && c[EXPERIENCE] > skill[24]) {
 345                 long tmp;
 346                 tmp = c[EXPERIENCE] - skill[24];        /* amount to go up */
 347                 c[EXPERIENCE] = skill[24];
 348                 raiseexperience((long)tmp);
 349         }
 350         getlevel();
 351         lasttime = gtime;
 352 }
 353
 354 /*
 355         subroutine to not allow greedy cheaters
 356  */
 357 static void
 358 greedy(void)
 359 {
 360 #if WIZID
 361         if (wizard)
 362                 return;
 363 #endif
 364
 365         lprcat("\n\nI am so sorry, but your character is a little TOO good!  Since this\n");
 366         lprcat("cannot normally happen from an honest game, I must assume that you cheated.\n");
 367         lprcat("In that you are GREEDY as well as a CHEATER, I cannot allow this game\n");
 368         lprcat("to continue.\n");
 369         nap(5000);
 370         c[GOLD] = c[BANKACCOUNT] = 0;
 371         died(-267);
 372 }
 373
 374 /*
 375         subroutine to not allow altered save files and terminate the attempted
 376         restart
 377  */
 378 static void
 379 fsorry(void)
 380 {
 381         lprcat("\nSorry, but your savefile has been altered.\n");
 382         lprcat("However, seeing as I am a good sport, I will let you play.\n");
 383         lprcat("Be advised though, you won't be placed on the normal scoreboard.");
 384         cheat = 1;
 385         nap(4000);
 386 }
 387
 388 /*
 389         subroutine to not allow game if save file can't be deleted
 390  */
 391 static void
 392 fcheat(void)
 393 {
 394 #if WIZID
 395         if (wizard)
 396                 return;
 397 #endif
 398
 399         lprcat("\nSorry, but your savefile can't be deleted.  This can only mean\n");
 400         lprcat("that you tried to CHEAT by protecting the directory the savefile\n");
 401         lprcat("is in.  Since this is unfair to the rest of the larn community, I\n");
 402         lprcat("cannot let you play this game.\n");
 403         nap(5000);
 404         c[GOLD] = c[BANKACCOUNT] = 0;
 405         died(-268);
 406 }