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