main/mission.c

   1 /*
   2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   3 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   6 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   8 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  12 */
  13
  14 /*
  15  *
  16  * Code to handle multiple missions
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <conf.h>
  22 #endif
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <ctype.h>
  28 #include <limits.h>
  29
  30 #include "pstypes.h"
  31 #include "cfile.h"
  32
  33 #include "strutil.h"
  34 #include "inferno.h"
  35 #include "mission.h"
  36 #include "gameseq.h"
  37 #include "titles.h"
  38 #include "songs.h"
  39 #include "mono.h"
  40 #include "error.h"
  41 #include "config.h"
  42 #include "newmenu.h"
  43 #include "text.h"
  44 #include "u_mem.h"
  45 #include "ignorecase.h"
  46
  47 //values for d1 built-in mission
  48 #define BIM_LAST_LEVEL          27
  49 #define BIM_LAST_SECRET_LEVEL   -3
  50 #define BIM_BRIEFING_FILE       "briefing.tex"
  51 #define BIM_ENDING_FILE         "endreg.tex"
  52
  53 //mission list entry
  54 typedef struct mle {
  55         char    *filename;          // filename without extension
  56         int     builtin_hogsize;    // if it's the built-in mission, used for determining the version
  57         char    mission_name[MISSION_NAME_LEN+1];
  58         ubyte   descent_version;    // descent 1 or descent 2?
  59         ubyte   anarchy_only_flag;  // if true, mission is anarchy only
  60         char    *path;                          // relative file path
  61         int             location;           // see defines below
  62 } mle;
  63
  64 //values that describe where a mission is located
  65 #define ML_CURDIR       0
  66 #define ML_MISSIONDIR   1
  67
  68 int num_missions = -1;
  69
  70 Mission *Current_mission = NULL; // currently loaded mission
  71
  72 //
  73 //  Special versions of mission routines for d1 builtins
  74 //
  75
  76 int load_mission_d1(void)
  77 {
  78         int i;
  79
  80         switch (cfile_size("descent.hog")) {
  81         case D1_SHAREWARE_MISSION_HOGSIZE:
  82         case D1_SHAREWARE_10_MISSION_HOGSIZE:
  83                 N_secret_levels = 0;
  84
  85                 Last_level = 7;
  86                 Last_secret_level = 0;
  87
  88                 //build level names
  89                 for (i=0;i<Last_level;i++)
  90                         sprintf(Level_names[i], "level%02d.sdl", i+1);
  91
  92                 break;
  93         case D1_MAC_SHARE_MISSION_HOGSIZE:
  94                 N_secret_levels = 0;
  95
  96                 Last_level = 3;
  97                 Last_secret_level = 0;
  98
  99                 //build level names
 100                 for (i=0;i<Last_level;i++)
 101                         sprintf(Level_names[i], "level%02d.sdl", i+1);
 102
 103                 break;
 104         case D1_OEM_MISSION_HOGSIZE:
 105         case D1_OEM_10_MISSION_HOGSIZE:
 106                 N_secret_levels = 1;
 107
 108                 Last_level = 15;
 109                 Last_secret_level = -1;
 110
 111                 //build level names
 112                 for (i=0; i < Last_level - 1; i++)
 113                         sprintf(Level_names[i], "level%02d.rdl", i+1);
 114                 sprintf(Level_names[i], "saturn%02d.rdl", i+1);
 115                 for (i=0; i < -Last_secret_level; i++)
 116                         sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
 117
 118                 Secret_level_table[0] = 10;
 119
 120                 break;
 121         default:
 122                 Int3(); // fall through
 123         case D1_MISSION_HOGSIZE:
 124         case D1_10_MISSION_HOGSIZE:
 125         case D1_MAC_MISSION_HOGSIZE:
 126                 N_secret_levels = 3;
 127
 128                 Last_level = BIM_LAST_LEVEL;
 129                 Last_secret_level = BIM_LAST_SECRET_LEVEL;
 130
 131                 //build level names
 132                 for (i=0;i<Last_level;i++)
 133                         sprintf(Level_names[i], "level%02d.rdl", i+1);
 134                 for (i=0;i<-Last_secret_level;i++)
 135                         sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
 136
 137                 Secret_level_table[0] = 10;
 138                 Secret_level_table[1] = 21;
 139                 Secret_level_table[2] = 24;
 140
 141                 break;
 142         }
 143         strcpy(Briefing_text_filename,BIM_BRIEFING_FILE);
 144         strcpy(Ending_text_filename,BIM_ENDING_FILE);
 145
 146         return 1;
 147 }
 148
 149
 150 //
 151 //  Special versions of mission routines for shareware
 152 //
 153
 154 int load_mission_shareware(void)
 155 {
 156     strcpy(Current_mission->mission_name, SHAREWARE_MISSION_NAME);
 157     Current_mission->descent_version = 2;
 158     Current_mission->anarchy_only_flag = 0;
 159
 160     switch (Current_mission->builtin_hogsize) {
 161         case MAC_SHARE_MISSION_HOGSIZE:
 162                 N_secret_levels = 1;
 163
 164                 Last_level = 4;
 165                 Last_secret_level = -1;
 166
 167                 // mac demo is using the regular hog and rl2 files
 168                 strcpy(Level_names[0],"d2leva-1.rl2");
 169                 strcpy(Level_names[1],"d2leva-2.rl2");
 170                 strcpy(Level_names[2],"d2leva-3.rl2");
 171                 strcpy(Level_names[3],"d2leva-4.rl2");
 172                 strcpy(Secret_level_names[0],"d2leva-s.rl2");
 173                 break;
 174         default:
 175                 Int3(); // fall through
 176         case SHAREWARE_MISSION_HOGSIZE:
 177                 N_secret_levels = 0;
 178
 179                 Last_level = 3;
 180                 Last_secret_level = 0;
 181
 182                 strcpy(Level_names[0],"d2leva-1.sl2");
 183                 strcpy(Level_names[1],"d2leva-2.sl2");
 184                 strcpy(Level_names[2],"d2leva-3.sl2");
 185         }
 186
 187         return 1;
 188 }
 189
 190
 191 //
 192 //  Special versions of mission routines for Diamond/S3 version
 193 //
 194
 195 int load_mission_oem(void)
 196 {
 197     strcpy(Current_mission->mission_name, OEM_MISSION_NAME);
 198     Current_mission->descent_version = 2;
 199     Current_mission->anarchy_only_flag = 0;
 200
 201         N_secret_levels = 2;
 202
 203         Last_level = 8;
 204         Last_secret_level = -2;
 205
 206         strcpy(Level_names[0],"d2leva-1.rl2");
 207         strcpy(Level_names[1],"d2leva-2.rl2");
 208         strcpy(Level_names[2],"d2leva-3.rl2");
 209         strcpy(Level_names[3],"d2leva-4.rl2");
 210
 211         strcpy(Secret_level_names[0],"d2leva-s.rl2");
 212
 213         strcpy(Level_names[4],"d2levb-1.rl2");
 214         strcpy(Level_names[5],"d2levb-2.rl2");
 215         strcpy(Level_names[6],"d2levb-3.rl2");
 216         strcpy(Level_names[7],"d2levb-4.rl2");
 217
 218         strcpy(Secret_level_names[1],"d2levb-s.rl2");
 219
 220         Secret_level_table[0] = 1;
 221         Secret_level_table[1] = 5;
 222
 223         return 1;
 224 }
 225
 226
 227 //compare a string for a token. returns true if match
 228 int istok(char *buf,char *tok)
 229 {
 230         return strnicmp(buf,tok,strlen(tok)) == 0;
 231
 232 }
 233
 234 //adds a terminating 0 after a string at the first white space
 235 void add_term(char *s)
 236 {
 237         while (*s && !isspace(*s)) s++;
 238
 239         *s = 0;         //terminate!
 240 }
 241
 242 //returns ptr to string after '=' & white space, or NULL if no '='
 243 //adds 0 after parm at first white space
 244 char *get_value(char *buf)
 245 {
 246         char *t;
 247
 248         t = strchr(buf,'=')+1;
 249
 250         if (t) {
 251                 while (*t && isspace(*t)) t++;
 252
 253                 if (*t)
 254                         return t;
 255         }
 256
 257         return NULL;            //error!
 258 }
 259
 260 //reads a line, returns ptr to value of passed parm.  returns NULL if none
 261 char *get_parm_value(char *parm,CFILE *f)
 262 {
 263         static char buf[80];
 264
 265         if (!cfgets(buf,80,f))
 266                 return NULL;
 267
 268         if (istok(buf,parm))
 269                 return get_value(buf);
 270         else
 271                 return NULL;
 272 }
 273
 274 int ml_sort_func(mle *e0,mle *e1)
 275 {
 276         return stricmp(e0->mission_name,e1->mission_name);
 277
 278 }
 279
 280
 281 //returns 1 if file read ok, else 0
 282 int read_mission_file(mle *mission, char *filename, int location)
 283 {
 284         char filename2[100];
 285         CFILE *mfile;
 286
 287         //printf("reading: %s\n", filename);
 288
 289         switch (location) {
 290                 case ML_MISSIONDIR:
 291                         strcpy(filename2,MISSION_DIR);
 292                         break;
 293
 294                 default:
 295                         Int3();         //fall through
 296
 297                 case ML_CURDIR:
 298                         strcpy(filename2,"");
 299                         break;
 300         }
 301         strcat(filename2,filename);
 302
 303         mfile = cfopen(filename2,"rb");
 304
 305         if (mfile) {
 306                 char *p;
 307                 char temp[PATH_MAX], *ext;
 308
 309                 strcpy(temp,filename);
 310                 p = strrchr(temp, '/'); // get the filename at the end of the path
 311                 if (!p)
 312                         p = temp;
 313                 else p++;
 314
 315                 if ((ext = strchr(p, '.')) == NULL)
 316                         return 0;       //missing extension
 317                 // look if it's .mn2 or .msn
 318                 mission->descent_version = (ext[3] == '2') ? 2 : 1;
 319                 *ext = 0;                       //kill extension
 320
 321                 mission->path = d_strdup(temp);
 322                 mission->anarchy_only_flag = 0;
 323                 mission->filename = mission->path + (p - temp);
 324                 mission->location = location;
 325
 326                 p = get_parm_value("name",mfile);
 327
 328                 if (!p) {               //try enhanced mission
 329                         cfseek(mfile,0,SEEK_SET);
 330                         p = get_parm_value("xname",mfile);
 331                 }
 332
 333                 if (!p) {       //try super-enhanced mission!
 334                         cfseek(mfile,0,SEEK_SET);
 335                         p = get_parm_value("zname",mfile);
 336                 }
 337
 338                 if (p) {
 339                         char *t;
 340                         if ((t=strchr(p,';'))!=NULL)
 341                                 *t=0;
 342                         t = p + strlen(p)-1;
 343                         while (isspace(*t))
 344                                 *t-- = 0; // remove trailing whitespace
 345                         if (strlen(p) > MISSION_NAME_LEN)
 346                                 p[MISSION_NAME_LEN] = 0;
 347                         strncpy(mission->mission_name, p, MISSION_NAME_LEN + 1);
 348                 }
 349                 else {
 350                         cfclose(mfile);
 351                         d_free(mission->path);
 352                         return 0;
 353                 }
 354
 355                 p = get_parm_value("type",mfile);
 356
 357                 //get mission type
 358                 if (p)
 359                         mission->anarchy_only_flag = istok(p,"anarchy");
 360
 361                 cfclose(mfile);
 362
 363                 return 1;
 364         }
 365
 366         return 0;
 367 }
 368
 369 void add_d1_builtin_mission_to_list(mle *mission)
 370 {
 371     int size;
 372
 373         if (!cfexist("descent.hog"))
 374                 return;
 375
 376         size = cfile_size("descent.hog");
 377
 378         switch (size) {
 379         case D1_SHAREWARE_MISSION_HOGSIZE:
 380         case D1_SHAREWARE_10_MISSION_HOGSIZE:
 381         case D1_MAC_SHARE_MISSION_HOGSIZE:
 382                 mission->filename = d_strdup(D1_MISSION_FILENAME);
 383                 strcpy(mission->mission_name, D1_SHAREWARE_MISSION_NAME);
 384                 mission->anarchy_only_flag = 0;
 385                 break;
 386         case D1_OEM_MISSION_HOGSIZE:
 387         case D1_OEM_10_MISSION_HOGSIZE:
 388                 mission->filename = d_strdup(D1_MISSION_FILENAME);
 389                 strcpy(mission->mission_name, D1_OEM_MISSION_NAME);
 390                 mission->anarchy_only_flag = 0;
 391                 break;
 392         default:
 393                 Warning("Unknown D1 hogsize %d\n", size);
 394                 Int3();
 395                 // fall through
 396         case D1_MISSION_HOGSIZE:
 397         case D1_10_MISSION_HOGSIZE:
 398         case D1_MAC_MISSION_HOGSIZE:
 399                 mission->filename = d_strdup(D1_MISSION_FILENAME);
 400                 strcpy(mission->mission_name, D1_MISSION_NAME);
 401                 mission->anarchy_only_flag = 0;
 402                 break;
 403         }
 404
 405         mission->descent_version = 1;
 406         mission->anarchy_only_flag = 0;
 407         mission->builtin_hogsize = 0;
 408         mission->path = mission->filename;
 409         num_missions++;
 410 }
 411
 412
 413 void add_builtin_mission_to_list(mle *mission, char *name)
 414 {
 415     int size = cfile_size("descent2.hog");
 416
 417         if (size == -1)
 418                 size = cfile_size("d2demo.hog");
 419
 420         switch (size) {
 421         case SHAREWARE_MISSION_HOGSIZE:
 422         case MAC_SHARE_MISSION_HOGSIZE:
 423                 mission->filename = d_strdup(SHAREWARE_MISSION_FILENAME);
 424                 strcpy(mission->mission_name,SHAREWARE_MISSION_NAME);
 425                 mission->anarchy_only_flag = 0;
 426                 break;
 427         case OEM_MISSION_HOGSIZE:
 428                 mission->filename = d_strdup(OEM_MISSION_FILENAME);
 429                 strcpy(mission->mission_name,OEM_MISSION_NAME);
 430                 mission->anarchy_only_flag = 0;
 431                 break;
 432         default:
 433                 Warning("Unknown hogsize %d, trying %s\n", size, FULL_MISSION_FILENAME ".mn2");
 434                 Int3(); //fall through
 435         case FULL_MISSION_HOGSIZE:
 436         case FULL_10_MISSION_HOGSIZE:
 437         case MAC_FULL_MISSION_HOGSIZE:
 438                 if (!read_mission_file(mission, FULL_MISSION_FILENAME ".mn2", ML_CURDIR))
 439                         Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
 440         }
 441
 442         mission->path = mission->filename;
 443         strcpy(name, mission->filename);
 444     mission->builtin_hogsize = size;
 445         mission->descent_version = 2;
 446         mission->anarchy_only_flag = 0;
 447         num_missions++;
 448 }
 449
 450
 451 void add_missions_to_list(mle *mission_list, char *path, char *rel_path, int anarchy_mode)
 452 {
 453         char **find, **i, *ext;
 454
 455         find = PHYSFS_enumerateFiles(path);
 456
 457         for (i = find; *i != NULL; i++)
 458         {
 459                 if (strlen(path) + strlen(*i) + 1 >= PATH_MAX)
 460                         continue;       // path is too long
 461
 462                 strcat(rel_path, *i);
 463                 if (PHYSFS_isDirectory(path))
 464                 {
 465                         strcat(rel_path, "/");
 466                         add_missions_to_list(mission_list, path, rel_path, anarchy_mode);
 467                         *(strrchr(path, '/')) = 0;
 468                 }
 469                 else if ((ext = strrchr(*i, '.')) && (!strnicmp(ext, ".msn", 4) || !strnicmp(ext, ".mn2", 4)))
 470                         if (read_mission_file(&mission_list[num_missions], rel_path, ML_MISSIONDIR))
 471                         {
 472                                 if (anarchy_mode || !mission_list[num_missions].anarchy_only_flag)
 473                                 {
 474                                         mission_list[num_missions].builtin_hogsize = 0;
 475                                         num_missions++;
 476                                 }
 477                                 else
 478                                         d_free(mission_list[num_missions].path);
 479                         }
 480
 481                 if (num_missions >= MAX_MISSIONS)
 482                 {
 483                         mprintf((0, "Warning: more missions than d2x can handle\n"));
 484                         break;
 485                 }
 486
 487                 (strrchr(path, '/'))[1] = 0;    // chop off the entry
 488         }
 489
 490         PHYSFS_freeList(find);
 491 }
 492
 493 /* move <mission_name> to <place> on mission list, increment <place> */
 494 void promote (mle *mission_list, char * mission_name, int * top_place)
 495 {
 496         int i;
 497         char name[FILENAME_LEN], * t;
 498         strcpy(name, mission_name);
 499         if ((t = strchr(name,'.')) != NULL)
 500                 *t = 0; //kill extension
 501         //printf("promoting: %s\n", name);
 502         for (i = *top_place; i < num_missions; i++)
 503                 if (!stricmp(mission_list[i].filename, name)) {
 504                         //swap mission positions
 505                         mle temp;
 506
 507                         temp = mission_list[*top_place];
 508                         mission_list[*top_place] = mission_list[i];
 509                         mission_list[i] = temp;
 510                         ++(*top_place);
 511                         break;
 512                 }
 513 }
 514
 515 void free_mission(void)
 516 {
 517     // May become more complex with the editor
 518     if (Current_mission) {
 519                 d_free(Current_mission->filename);
 520         d_free(Current_mission);
 521     }
 522 }
 523
 524
 525
 526 //fills in the global list of missions.  Returns the number of missions
 527 //in the list.  If anarchy_mode is set, then also add anarchy-only missions.
 528
 529 #if 0
 530 extern char AltHogDir[];
 531 extern char AltHogdir_initialized;
 532 #endif
 533
 534 mle *build_mission_list(int anarchy_mode)
 535 {
 536         mle *mission_list;
 537         int top_place;
 538     char        builtin_mission_filename[FILENAME_LEN];
 539         char    search_str[PATH_MAX] = MISSION_DIR;
 540
 541         //now search for levels on disk
 542
 543 //@@Took out this code because after this routine was called once for
 544 //@@a list of single-player missions, a subsequent call for a list of
 545 //@@anarchy missions would not scan again, and thus would not find the
 546 //@@anarchy-only missions.  If we retain the minimum level of install,
 547 //@@we may want to put the code back in, having it always scan for all
 548 //@@missions, and have the code that uses it sort out the ones it wants.
 549 //@@    if (num_missions != -1) {
 550 //@@            if (Current_mission_num != 0)
 551 //@@                    load_mission(0);                                //set built-in mission as default
 552 //@@            return num_missions;
 553 //@@    }
 554
 555         MALLOC(mission_list, mle, MAX_MISSIONS);
 556         num_missions = 0;
 557
 558         add_builtin_mission_to_list(mission_list + num_missions, builtin_mission_filename);  //read built-in first
 559         add_d1_builtin_mission_to_list(mission_list + num_missions);
 560         add_missions_to_list(mission_list, search_str, search_str + strlen(search_str), anarchy_mode);
 561
 562         // move original missions (in story-chronological order)
 563         // to top of mission list
 564         top_place = 0;
 565         promote(mission_list, "descent", &top_place); // original descent 1 mission
 566         promote(mission_list, builtin_mission_filename, &top_place); // d2 or d2demo
 567         promote(mission_list, "d2x", &top_place); // vertigo
 568
 569         if (num_missions > top_place)
 570                 qsort(&mission_list[top_place],
 571                       num_missions - top_place,
 572                       sizeof(*mission_list),
 573                                 (int (*)( const void *, const void * ))ml_sort_func);
 574
 575
 576         if (num_missions > top_place)
 577                 qsort(&mission_list[top_place],
 578                       num_missions - top_place,
 579                       sizeof(*mission_list),
 580                       (int (*)( const void *, const void * ))ml_sort_func);
 581
 582         //load_mission(0);   //set built-in mission as default
 583
 584     atexit(free_mission);
 585
 586         return mission_list;
 587 }
 588
 589 void free_mission_list(mle *mission_list)
 590 {
 591         int i;
 592
 593         for (i = 0; i < num_missions; i++)
 594                 d_free(mission_list[i].path);
 595
 596         d_free(mission_list);
 597         num_missions = 0;
 598 }
 599
 600 void init_extra_robot_movie(char *filename);
 601
 602 //values for built-in mission
 603
 604 //loads the specfied mission from the mission list.
 605 //build_mission_list() must have been called.
 606 //Returns true if mission loaded ok, else false.
 607 int load_mission(mle *mission)
 608 {
 609         CFILE *mfile;
 610         char buf[PATH_MAX], *v;
 611     int found_hogfile;
 612
 613     if (Current_mission)
 614         free_mission();
 615     Current_mission = d_malloc(sizeof(Mission));
 616     if (!Current_mission) return 0;
 617     *(mle *) Current_mission = *mission;
 618         Current_mission->filename = d_strdup(mission->filename); // don't want to lose it
 619
 620     // for Descent 1 missions, load descent.hog
 621     if (EMULATING_D1) {
 622         if (!cfile_init("descent.hog"))
 623             Warning("descent.hog not available, this mission may be missing some files required for briefings and exit sequence\n");
 624         if (!stricmp(Current_mission_filename, D1_MISSION_FILENAME))
 625             return load_mission_d1();
 626     }
 627
 628     if (PLAYING_BUILTIN_MISSION) {
 629                 switch (Current_mission->builtin_hogsize) {
 630                 case SHAREWARE_MISSION_HOGSIZE:
 631                 case MAC_SHARE_MISSION_HOGSIZE:
 632                         return load_mission_shareware();
 633                         break;
 634                 case OEM_MISSION_HOGSIZE:
 635                         return load_mission_oem();
 636                         break;
 637                 default:
 638                         Int3(); // fall through
 639                 case FULL_MISSION_HOGSIZE:
 640                 case FULL_10_MISSION_HOGSIZE:
 641                 case MAC_FULL_MISSION_HOGSIZE:
 642                         // continue on... (use d2.mn2 from hogfile)
 643                         break;
 644                 }
 645     }
 646
 647         mprintf(( 0, "Loading mission %s\n", Current_mission_filename ));
 648
 649         //read mission from file
 650
 651         switch (mission->location) {
 652         case ML_MISSIONDIR:
 653                 strcpy(buf,MISSION_DIR);
 654                 break;
 655         default:
 656                 Int3();                                                 //fall through
 657         case ML_CURDIR:
 658                 strcpy(buf,"");
 659                 break;
 660         }
 661         strcat(buf, mission->path);
 662         if (mission->descent_version == 2)
 663                 strcat(buf,".mn2");
 664         else
 665                 strcat(buf,".msn");
 666
 667         PHYSFSEXT_locateCorrectCase(buf);
 668
 669         mfile = cfopen(buf,"rb");
 670         if (mfile == NULL) {
 671         free_mission();
 672                 return 0;               //error!
 673         }
 674
 675     //for non-builtin missions, load HOG
 676     if (!PLAYING_BUILTIN_MISSION) {
 677
 678         strcpy(buf+strlen(buf)-4,".hog");               //change extension
 679
 680                 PHYSFSEXT_locateCorrectCase(buf);
 681
 682                 found_hogfile = cfile_init(buf);
 683
 684 #ifdef RELEASE                          //for release, require mission to be in hogfile
 685         if (! found_hogfile) {
 686             cfclose(mfile);
 687             free_mission();
 688             return 0;
 689         }
 690 #endif
 691     }
 692
 693     //init vars
 694         Last_level = 0;
 695         Last_secret_level = 0;
 696         Briefing_text_filename[0] = 0;
 697         Ending_text_filename[0] = 0;
 698
 699         while (cfgets(buf,80,mfile)) {
 700
 701                 if (istok(buf,"name")) {
 702                         Current_mission->enhanced = 0;
 703                         continue;                                               //already have name, go to next line
 704                 }
 705                 if (istok(buf,"xname")) {
 706                         Current_mission->enhanced = 1;
 707                         continue;                                               //already have name, go to next line
 708                 }
 709                 if (istok(buf,"zname")) {
 710                         Current_mission->enhanced = 2;
 711                         continue;                                               //already have name, go to next line
 712                 }
 713                 else if (istok(buf,"type"))
 714                         continue;                                               //already have name, go to next line
 715                 else if (istok(buf,"hog")) {
 716                         char    *bufp = buf;
 717
 718                         while (*(bufp++) != '=')
 719                                 ;
 720
 721                         if (*bufp == ' ')
 722                                 while (*(++bufp) == ' ')
 723                                         ;
 724
 725                         cfile_init(bufp);
 726                         mprintf((0, "Hog file override = [%s]\n", bufp));
 727                 }
 728                 else if (istok(buf,"briefing")) {
 729                         if ((v = get_value(buf)) != NULL) {
 730                                 add_term(v);
 731                                 if (strlen(v) < 13)
 732                                         strcpy(Briefing_text_filename,v);
 733                         }
 734                 }
 735                 else if (istok(buf,"ending")) {
 736                         if ((v = get_value(buf)) != NULL) {
 737                                 add_term(v);
 738                                 if (strlen(v) < 13)
 739                                         strcpy(Ending_text_filename,v);
 740                         }
 741                 }
 742                 else if (istok(buf,"num_levels")) {
 743
 744                         if ((v=get_value(buf))!=NULL) {
 745                                 int n_levels,i;
 746
 747                                 n_levels = atoi(v);
 748
 749                                 for (i=0;i<n_levels && cfgets(buf,80,mfile);i++) {
 750
 751                                         add_term(buf);
 752                                         if (strlen(buf) <= 12) {
 753                                                 strcpy(Level_names[i],buf);
 754                                                 Last_level++;
 755                                         }
 756                                         else
 757                                                 break;
 758                                 }
 759
 760                         }
 761                 }
 762                 else if (istok(buf,"num_secrets")) {
 763                         if ((v=get_value(buf))!=NULL) {
 764                                 int i;
 765
 766                                 N_secret_levels = atoi(v);
 767
 768                                 Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
 769
 770                                 for (i=0;i<N_secret_levels && cfgets(buf,80,mfile);i++) {
 771                                         char *t;
 772
 773
 774                                         if ((t=strchr(buf,','))!=NULL) *t++=0;
 775                                         else
 776                                                 break;
 777
 778                                         add_term(buf);
 779                                         if (strlen(buf) <= 12) {
 780                                                 strcpy(Secret_level_names[i],buf);
 781                                                 Secret_level_table[i] = atoi(t);
 782                                                 if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
 783                                                         break;
 784                                                 Last_secret_level--;
 785                                         }
 786                                         else
 787                                                 break;
 788                                 }
 789
 790                         }
 791                 }
 792
 793         }
 794
 795         cfclose(mfile);
 796
 797         if (Last_level <= 0) {
 798                 free_mission();         //no valid mission loaded
 799                 return 0;
 800         }
 801
 802         if (Current_mission->enhanced) {
 803                 char t[50];
 804                 extern void bm_read_extra_robots();
 805                 sprintf(t,"%s.ham",Current_mission_filename);
 806                 bm_read_extra_robots(t, Current_mission->enhanced);
 807                 strncpy(t,Current_mission_filename,6);
 808                 init_extra_robot_movie(t);
 809         }
 810
 811         return 1;
 812 }
 813
 814 //loads the named mission if exists.
 815 //Returns true if mission loaded ok, else false.
 816 int load_mission_by_name(char *mission_name)
 817 {
 818         int i;
 819         mle *mission_list = build_mission_list(1);
 820         bool found = 0;
 821
 822         for (i = 0; i < num_missions; i++)
 823                 if (!stricmp(mission_name, mission_list[i].filename))
 824                         found = load_mission(mission_list + i);
 825
 826         free_mission_list(mission_list);
 827         return found;
 828 }
 829
 830 int select_mission(int anarchy_mode, char *message)
 831 {
 832     mle *mission_list = build_mission_list(anarchy_mode);
 833         int new_mission_num;
 834
 835     if (num_missions <= 1) {
 836         new_mission_num = load_mission(mission_list) ? 0 : -1;
 837     } else {
 838         int i, default_mission;
 839         char * m[MAX_MISSIONS];
 840
 841         default_mission = 0;
 842         for (i = 0; i < num_missions; i++) {
 843             m[i] = mission_list[i].mission_name;
 844             if ( !stricmp( m[i], config_last_mission.string ) )
 845                 default_mission = i;
 846         }
 847
 848         new_mission_num = newmenu_listbox1( message, num_missions, m, 1, default_mission, NULL );
 849
 850         if (new_mission_num >= 0) {
 851                         // Chose a mission
 852                         cvar_set_cvar( &config_last_mission, m[new_mission_num] );
 853
 854                         if (!load_mission(mission_list + new_mission_num)) {
 855                                 nm_messagebox( NULL, 1, TXT_OK, TXT_MISSION_ERROR);
 856                                 new_mission_num = -1;
 857                         }
 858                 }
 859     }
 860
 861         free_mission_list(mission_list);
 862     return (new_mission_num >= 0);
 863 }
 864
 865
 866 //set a new highest level for player for this mission
 867 int mission_write_config(void)
 868 {
 869         char filename[FILENAME_LEN+15];
 870         PHYSFS_file *file;
 871
 872         PHYSFS_mkdir(MISSION_DIR);
 873
 874         sprintf(filename, MISSION_DIR "%s.cfg", Current_mission_filename);
 875         file = PHYSFSX_openWriteBuffered(filename);
 876
 877         if (!file)
 878         {
 879                 nm_messagebox(NULL, 1, TXT_OK, "Cannot open mission config file");
 880                 return -1;
 881         }
 882
 883         PHYSFSX_printf(file, "%s=%d\n", Player_highest_level.name, Current_level_num);
 884
 885         PHYSFS_close(file);
 886
 887         return 0;
 888 }
 889
 890
 891 //gets the player's highest level from the file for this mission
 892 int mission_read_config(void)
 893 {
 894         cvar_setint(&Player_highest_level, 0);
 895
 896         cmd_appendf("exec " MISSION_DIR "%s.cfg", Current_mission_filename);
 897         cmd_queue_process();
 898
 899         return 0;
 900 }