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