main/mission.c

   1 /* $Id: mission.c,v 1.38 2004-12-17 14:31:18 btb Exp $ */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 /*
  16  *
  17  * Code to handle multiple missions
  18  *
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include <conf.h>
  23 #endif
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <ctype.h>
  29 #include <limits.h>
  30
  31 #include "pstypes.h"
  32 #include "cfile.h"
  33
  34 #include "strutil.h"
  35 #include "inferno.h"
  36 #include "mission.h"
  37 #include "gameseq.h"
  38 #include "titles.h"
  39 #include "songs.h"
  40 #include "mono.h"
  41 #include "error.h"
  42 #include "config.h"
  43 #include "newmenu.h"
  44 #include "text.h"
  45 #include "u_mem.h"
  46 #include "ignorecase.h"
  47
  48 //values for d1 built-in mission
  49 #define BIM_LAST_LEVEL          27
  50 #define BIM_LAST_SECRET_LEVEL   -3
  51 #define BIM_BRIEFING_FILE       "briefing.tex"
  52 #define BIM_ENDING_FILE         "endreg.tex"
  53
  54 //mission list entry
  55 typedef struct mle {
  56         char    *filename;          // filename without extension
  57         int     builtin_hogsize;    // if it's the built-in mission, used for determining the version
  58         char    mission_name[MISSION_NAME_LEN+1];
  59         ubyte   descent_version;    // descent 1 or descent 2?
  60         ubyte   anarchy_only_flag;  // if true, mission is anarchy only
  61         ubyte   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 #define ML_CDROM        2
  68
  69 int num_missions = -1;
  70
  71 Mission *Current_mission = NULL; // currently loaded mission
  72
  73 //
  74 //  Special versions of mission routines for d1 builtins
  75 //
  76
  77 int load_mission_d1(void)
  78 {
  79         int i;
  80
  81         switch (cfile_size("descent.hog")) {
  82         case D1_SHAREWARE_MISSION_HOGSIZE:
  83         case D1_SHAREWARE_10_MISSION_HOGSIZE:
  84                 N_secret_levels = 0;
  85
  86                 Last_level = 7;
  87                 Last_secret_level = 0;
  88
  89                 //build level names
  90                 for (i=0;i<Last_level;i++)
  91                         sprintf(Level_names[i], "level%02d.sdl", i+1);
  92
  93                 break;
  94         case D1_MAC_SHARE_MISSION_HOGSIZE:
  95                 N_secret_levels = 0;
  96
  97                 Last_level = 3;
  98                 Last_secret_level = 0;
  99
 100                 //build level names
 101                 for (i=0;i<Last_level;i++)
 102                         sprintf(Level_names[i], "level%02d.sdl", i+1);
 103
 104                 break;
 105         case D1_OEM_MISSION_HOGSIZE:
 106         case D1_OEM_10_MISSION_HOGSIZE:
 107                 N_secret_levels = 1;
 108
 109                 Last_level = 15;
 110                 Last_secret_level = -1;
 111
 112                 //build level names
 113                 for (i=0; i < Last_level - 1; i++)
 114                         sprintf(Level_names[i], "level%02d.rdl", i+1);
 115                 sprintf(Level_names[i], "saturn%02d.rdl", i+1);
 116                 for (i=0; i < -Last_secret_level; i++)
 117                         sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
 118
 119                 Secret_level_table[0] = 10;
 120
 121                 break;
 122         default:
 123                 Int3(); // fall through
 124         case D1_MISSION_HOGSIZE:
 125         case D1_10_MISSION_HOGSIZE:
 126         case D1_MAC_MISSION_HOGSIZE:
 127                 N_secret_levels = 3;
 128
 129                 Last_level = BIM_LAST_LEVEL;
 130                 Last_secret_level = BIM_LAST_SECRET_LEVEL;
 131
 132                 //build level names
 133                 for (i=0;i<Last_level;i++)
 134                         sprintf(Level_names[i], "level%02d.rdl", i+1);
 135                 for (i=0;i<-Last_secret_level;i++)
 136                         sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
 137
 138                 Secret_level_table[0] = 10;
 139                 Secret_level_table[1] = 21;
 140                 Secret_level_table[2] = 24;
 141
 142                 break;
 143         }
 144         strcpy(Briefing_text_filename,BIM_BRIEFING_FILE);
 145         strcpy(Ending_text_filename,BIM_ENDING_FILE);
 146
 147         return 1;
 148 }
 149
 150
 151 //
 152 //  Special versions of mission routines for shareware
 153 //
 154
 155 int load_mission_shareware(void)
 156 {
 157     strcpy(Current_mission->mission_name, SHAREWARE_MISSION_NAME);
 158     Current_mission->descent_version = 2;
 159     Current_mission->anarchy_only_flag = 0;
 160
 161     switch (Current_mission->builtin_hogsize) {
 162         case MAC_SHARE_MISSION_HOGSIZE:
 163                 N_secret_levels = 1;
 164
 165                 Last_level = 4;
 166                 Last_secret_level = -1;
 167
 168                 // mac demo is using the regular hog and rl2 files
 169                 strcpy(Level_names[0],"d2leva-1.rl2");
 170                 strcpy(Level_names[1],"d2leva-2.rl2");
 171                 strcpy(Level_names[2],"d2leva-3.rl2");
 172                 strcpy(Level_names[3],"d2leva-4.rl2");
 173                 strcpy(Secret_level_names[0],"d2leva-s.rl2");
 174                 break;
 175         default:
 176                 Int3(); // fall through
 177         case SHAREWARE_MISSION_HOGSIZE:
 178                 N_secret_levels = 0;
 179
 180                 Last_level = 3;
 181                 Last_secret_level = 0;
 182
 183                 strcpy(Level_names[0],"d2leva-1.sl2");
 184                 strcpy(Level_names[1],"d2leva-2.sl2");
 185                 strcpy(Level_names[2],"d2leva-3.sl2");
 186         }
 187
 188         return 1;
 189 }
 190
 191
 192 //
 193 //  Special versions of mission routines for Diamond/S3 version
 194 //
 195
 196 int load_mission_oem(void)
 197 {
 198     strcpy(Current_mission->mission_name, OEM_MISSION_NAME);
 199     Current_mission->descent_version = 2;
 200     Current_mission->anarchy_only_flag = 0;
 201
 202         N_secret_levels = 2;
 203
 204         Last_level = 8;
 205         Last_secret_level = -2;
 206
 207         strcpy(Level_names[0],"d2leva-1.rl2");
 208         strcpy(Level_names[1],"d2leva-2.rl2");
 209         strcpy(Level_names[2],"d2leva-3.rl2");
 210         strcpy(Level_names[3],"d2leva-4.rl2");
 211
 212         strcpy(Secret_level_names[0],"d2leva-s.rl2");
 213
 214         strcpy(Level_names[4],"d2levb-1.rl2");
 215         strcpy(Level_names[5],"d2levb-2.rl2");
 216         strcpy(Level_names[6],"d2levb-3.rl2");
 217         strcpy(Level_names[7],"d2levb-4.rl2");
 218
 219         strcpy(Secret_level_names[1],"d2levb-s.rl2");
 220
 221         Secret_level_table[0] = 1;
 222         Secret_level_table[1] = 5;
 223
 224         return 1;
 225 }
 226
 227
 228 //compare a string for a token. returns true if match
 229 int istok(char *buf,char *tok)
 230 {
 231         return strnicmp(buf,tok,strlen(tok)) == 0;
 232
 233 }
 234
 235 //adds a terminating 0 after a string at the first white space
 236 void add_term(char *s)
 237 {
 238         while (*s && !isspace(*s)) s++;
 239
 240         *s = 0;         //terminate!
 241 }
 242
 243 //returns ptr to string after '=' & white space, or NULL if no '='
 244 //adds 0 after parm at first white space
 245 char *get_value(char *buf)
 246 {
 247         char *t;
 248
 249         t = strchr(buf,'=')+1;
 250
 251         if (t) {
 252                 while (*t && isspace(*t)) t++;
 253
 254                 if (*t)
 255                         return t;
 256         }
 257
 258         return NULL;            //error!
 259 }
 260
 261 //reads a line, returns ptr to value of passed parm.  returns NULL if none
 262 char *get_parm_value(char *parm,CFILE *f)
 263 {
 264         static char buf[80];
 265
 266         if (!cfgets(buf,80,f))
 267                 return NULL;
 268
 269         if (istok(buf,parm))
 270                 return get_value(buf);
 271         else
 272                 return NULL;
 273 }
 274
 275 int ml_sort_func(mle *e0,mle *e1)
 276 {
 277         return stricmp(e0->mission_name,e1->mission_name);
 278
 279 }
 280
 281 extern char CDROM_dir[];
 282
 283 //returns 1 if file read ok, else 0
 284 int read_mission_file(mle *mission, char *filename, int location)
 285 {
 286         char filename2[100];
 287         CFILE *mfile;
 288
 289         //printf("reading: %s\n", filename);
 290
 291         switch (location) {
 292                 case ML_MISSIONDIR:
 293                         strcpy(filename2,MISSION_DIR);
 294                         break;
 295
 296                 case ML_CDROM:
 297                         songs_stop_redbook();           //so we can read from the CD
 298                         strcpy(filename2,CDROM_dir);
 299                         break;
 300
 301                 default:
 302                         Int3();         //fall through
 303
 304                 case ML_CURDIR:
 305                         strcpy(filename2,"");
 306                         break;
 307         }
 308         strcat(filename2,filename);
 309
 310         mfile = cfopen(filename2,"rb");
 311
 312         if (mfile) {
 313                 char *p;
 314                 char temp[FILENAME_LEN],*t;
 315
 316                 strcpy(temp,filename);
 317                 if ((t = strchr(temp,'.')) == NULL)
 318                         return 0;       //missing extension
 319                 // look if it's .mn2 or .msn
 320                 mission->descent_version = (t[3] == '2') ? 2 : 1;
 321                 *t = 0;                 //kill extension
 322
 323                 mission->filename = d_strdup(temp);
 324                 mission->anarchy_only_flag = 0;
 325                 mission->location = location;
 326
 327                 p = get_parm_value("name",mfile);
 328
 329                 if (!p) {               //try enhanced mission
 330                         cfseek(mfile,0,SEEK_SET);
 331                         p = get_parm_value("xname",mfile);
 332                 }
 333
 334                 if (!p) {       //try super-enhanced mission!
 335                         cfseek(mfile,0,SEEK_SET);
 336                         p = get_parm_value("zname",mfile);
 337                 }
 338
 339                 if (p) {
 340                         char *t;
 341                         if ((t=strchr(p,';'))!=NULL)
 342                                 *t=0;
 343                         t = p + strlen(p)-1;
 344                         while (isspace(*t)) t--;
 345                         strncpy(mission->mission_name,p,MISSION_NAME_LEN);
 346                 }
 347                 else {
 348                         cfclose(mfile);
 349                         d_free(mission->filename);
 350                         return 0;
 351                 }
 352
 353                 p = get_parm_value("type",mfile);
 354
 355                 //get mission type
 356                 if (p)
 357                         mission->anarchy_only_flag = istok(p,"anarchy");
 358
 359                 cfclose(mfile);
 360
 361                 return 1;
 362         }
 363
 364         return 0;
 365 }
 366
 367 void add_d1_builtin_mission_to_list(mle *mission)
 368 {
 369     int size;
 370
 371         if (!cfexist("descent.hog"))
 372                 return;
 373
 374         size = cfile_size("descent.hog");
 375
 376         switch (size) {
 377         case D1_SHAREWARE_MISSION_HOGSIZE:
 378         case D1_SHAREWARE_10_MISSION_HOGSIZE:
 379         case D1_MAC_SHARE_MISSION_HOGSIZE:
 380                 mission->filename = d_strdup(D1_MISSION_FILENAME);
 381                 strcpy(mission->mission_name, D1_SHAREWARE_MISSION_NAME);
 382                 mission->anarchy_only_flag = 0;
 383                 break;
 384         case D1_OEM_MISSION_HOGSIZE:
 385         case D1_OEM_10_MISSION_HOGSIZE:
 386                 mission->filename = d_strdup(D1_MISSION_FILENAME);
 387                 strcpy(mission->mission_name, D1_OEM_MISSION_NAME);
 388                 mission->anarchy_only_flag = 0;
 389                 break;
 390         default:
 391                 Warning("Unknown D1 hogsize %d\n", size);
 392                 Int3();
 393                 // fall through
 394         case D1_MISSION_HOGSIZE:
 395         case D1_10_MISSION_HOGSIZE:
 396         case D1_MAC_MISSION_HOGSIZE:
 397                 mission->filename = d_strdup(D1_MISSION_FILENAME);
 398                 strcpy(mission->mission_name, D1_MISSION_NAME);
 399                 mission->anarchy_only_flag = 0;
 400                 break;
 401         }
 402
 403         mission->descent_version = 1;
 404         mission->anarchy_only_flag = 0;
 405         mission->builtin_hogsize = 0;
 406         num_missions++;
 407 }
 408
 409
 410 void add_builtin_mission_to_list(mle *mission, char *name)
 411 {
 412     int size = cfile_size("descent2.hog");
 413
 414         if (size == -1)
 415                 size = cfile_size("d2demo.hog");
 416
 417         switch (size) {
 418         case SHAREWARE_MISSION_HOGSIZE:
 419         case MAC_SHARE_MISSION_HOGSIZE:
 420                 mission->filename = d_strdup(SHAREWARE_MISSION_FILENAME);
 421                 strcpy(mission->mission_name,SHAREWARE_MISSION_NAME);
 422                 mission->anarchy_only_flag = 0;
 423                 break;
 424         case OEM_MISSION_HOGSIZE:
 425                 mission->filename = d_strdup(OEM_MISSION_FILENAME);
 426                 strcpy(mission->mission_name,OEM_MISSION_NAME);
 427                 mission->anarchy_only_flag = 0;
 428                 break;
 429         default:
 430                 Warning("Unknown hogsize %d, trying %s\n", size, FULL_MISSION_FILENAME ".mn2");
 431                 Int3(); //fall through
 432         case FULL_MISSION_HOGSIZE:
 433         case FULL_10_MISSION_HOGSIZE:
 434         case MAC_FULL_MISSION_HOGSIZE:
 435                 if (!read_mission_file(mission, FULL_MISSION_FILENAME ".mn2", ML_CURDIR))
 436                         Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
 437         }
 438
 439         strcpy(name, mission->filename);
 440     mission->builtin_hogsize = size;
 441         mission->descent_version = 2;
 442         mission->anarchy_only_flag = 0;
 443         num_missions++;
 444 }
 445
 446
 447 void add_missions_to_list(mle *mission, int anarchy_mode)
 448 {
 449         char **find, **i, *ext;
 450
 451         find = PHYSFS_enumerateFiles(MISSION_DIR);
 452
 453         for (i = find; *i != NULL; i++)
 454         {
 455                 ext = strrchr(*i, '.');
 456                 if (ext && (!strnicmp(ext, ".msn", 4) || !strnicmp(ext, ".mn2", 4)))
 457                         if (read_mission_file(mission, *i, ML_MISSIONDIR))
 458                         {
 459                                 if (anarchy_mode || !mission->anarchy_only_flag) {
 460                                         mission++;
 461                                         num_missions++;
 462                                         mission->builtin_hogsize = 0;
 463                                 }
 464                                 else
 465                                         d_free(mission->filename);
 466                         }
 467                 if (num_missions >= MAX_MISSIONS)
 468                 {
 469                         mprintf((0, "Warning: more missions than d2x can handle\n"));
 470                         break;
 471                 }
 472         }
 473
 474         PHYSFS_freeList(find);
 475 }
 476
 477 /* move <mission_name> to <place> on mission list, increment <place> */
 478 void promote (mle *mission_list, char * mission_name, int * top_place)
 479 {
 480         int i;
 481         char name[FILENAME_LEN], * t;
 482         strcpy(name, mission_name);
 483         if ((t = strchr(name,'.')) != NULL)
 484                 *t = 0; //kill extension
 485         //printf("promoting: %s\n", name);
 486         for (i = *top_place; i < num_missions; i++)
 487                 if (!stricmp(mission_list[i].filename, name)) {
 488                         //swap mission positions
 489                         mle temp;
 490
 491                         temp = mission_list[*top_place];
 492                         mission_list[*top_place] = mission_list[i];
 493                         mission_list[i] = temp;
 494                         ++(*top_place);
 495                         break;
 496                 }
 497 }
 498
 499 void free_mission(void)
 500 {
 501     // May become more complex with the editor
 502     if (Current_mission) {
 503                 d_free(Current_mission->filename);
 504         d_free(Current_mission);
 505     }
 506 }
 507
 508
 509
 510 //fills in the global list of missions.  Returns the number of missions
 511 //in the list.  If anarchy_mode is set, then also add anarchy-only missions.
 512
 513 extern char CDROM_dir[];
 514 #if 0
 515 extern char AltHogDir[];
 516 extern char AltHogdir_initialized;
 517 #endif
 518
 519 mle *build_mission_list(int anarchy_mode)
 520 {
 521         mle *mission_list;
 522         int top_place;
 523     char        builtin_mission_filename[FILENAME_LEN];
 524
 525         //now search for levels on disk
 526
 527 //@@Took out this code because after this routine was called once for
 528 //@@a list of single-player missions, a subsequent call for a list of
 529 //@@anarchy missions would not scan again, and thus would not find the
 530 //@@anarchy-only missions.  If we retain the minimum level of install,
 531 //@@we may want to put the code back in, having it always scan for all
 532 //@@missions, and have the code that uses it sort out the ones it wants.
 533 //@@    if (num_missions != -1) {
 534 //@@            if (Current_mission_num != 0)
 535 //@@                    load_mission(0);                                //set built-in mission as default
 536 //@@            return num_missions;
 537 //@@    }
 538
 539         MALLOC(mission_list, mle, MAX_MISSIONS);
 540         num_missions = 0;
 541
 542         add_builtin_mission_to_list(mission_list + num_missions, builtin_mission_filename);  //read built-in first
 543         add_d1_builtin_mission_to_list(mission_list + num_missions);
 544         add_missions_to_list(mission_list + num_missions, anarchy_mode);
 545
 546         // move original missions (in story-chronological order)
 547         // to top of mission list
 548         top_place = 0;
 549         promote(mission_list, "descent", &top_place); // original descent 1 mission
 550         promote(mission_list, builtin_mission_filename, &top_place); // d2 or d2demo
 551         promote(mission_list, "d2x", &top_place); // vertigo
 552
 553         if (num_missions > top_place)
 554                 qsort(&mission_list[top_place],
 555                       num_missions - top_place,
 556                       sizeof(*mission_list),
 557                                 (int (*)( const void *, const void * ))ml_sort_func);
 558
 559
 560         if (num_missions > top_place)
 561                 qsort(&mission_list[top_place],
 562                       num_missions - top_place,
 563                       sizeof(*mission_list),
 564                       (int (*)( const void *, const void * ))ml_sort_func);
 565
 566         //load_mission(0);   //set built-in mission as default
 567
 568     atexit(free_mission);
 569
 570         return mission_list;
 571 }
 572
 573 void free_mission_list(mle *mission_list)
 574 {
 575         int i;
 576
 577         for (i = 0; i < num_missions; i++)
 578                 d_free(mission_list[i].filename);
 579
 580         d_free(mission_list);
 581         num_missions = 0;
 582 }
 583
 584 void init_extra_robot_movie(char *filename);
 585
 586 //values for built-in mission
 587
 588 //loads the specfied mission from the mission list.
 589 //build_mission_list() must have been called.
 590 //Returns true if mission loaded ok, else false.
 591 int load_mission(mle *mission)
 592 {
 593         CFILE *mfile;
 594         char buf[80], *v;
 595     int found_hogfile;
 596
 597     if (Current_mission)
 598         free_mission();
 599     Current_mission = d_malloc(sizeof(Mission));
 600     if (!Current_mission) return 0;
 601     *(mle *) Current_mission = *mission;
 602         Current_mission->filename = d_strdup(mission->filename); // don't want to lose it
 603
 604     // for Descent 1 missions, load descent.hog
 605     if (EMULATING_D1) {
 606         if (!cfile_init("descent.hog"))
 607             Warning("descent.hog not available, this mission may be missing some files required for briefings and exit sequence\n");
 608         if (!stricmp(Current_mission_filename, D1_MISSION_FILENAME))
 609             return load_mission_d1();
 610     }
 611
 612     if (PLAYING_BUILTIN_MISSION) {
 613                 switch (Current_mission->builtin_hogsize) {
 614                 case SHAREWARE_MISSION_HOGSIZE:
 615                 case MAC_SHARE_MISSION_HOGSIZE:
 616                         return load_mission_shareware();
 617                         break;
 618                 case OEM_MISSION_HOGSIZE:
 619                         return load_mission_oem();
 620                         break;
 621                 default:
 622                         Int3(); // fall through
 623                 case FULL_MISSION_HOGSIZE:
 624                 case FULL_10_MISSION_HOGSIZE:
 625                 case MAC_FULL_MISSION_HOGSIZE:
 626                         // continue on... (use d2.mn2 from hogfile)
 627                         break;
 628                 }
 629     }
 630
 631         mprintf(( 0, "Loading mission %s\n", Current_mission_filename ));
 632
 633         //read mission from file
 634
 635         switch (mission->location) {
 636         case ML_MISSIONDIR:
 637                 strcpy(buf,MISSION_DIR);
 638                 break;
 639         case ML_CDROM:
 640                 strcpy(buf,CDROM_dir);
 641                 break;
 642         default:
 643                 Int3();                                                 //fall through
 644         case ML_CURDIR:
 645                 strcpy(buf,"");
 646                 break;
 647         }
 648         strcat(buf, mission->filename);
 649         if (mission->descent_version == 2)
 650                 strcat(buf,".mn2");
 651         else
 652                 strcat(buf,".msn");
 653
 654         PHYSFSEXT_locateCorrectCase(buf);
 655
 656         mfile = cfopen(buf,"rb");
 657         if (mfile == NULL) {
 658         free_mission();
 659                 return 0;               //error!
 660         }
 661
 662     //for non-builtin missions, load HOG
 663     if (!PLAYING_BUILTIN_MISSION) {
 664
 665         strcpy(buf+strlen(buf)-4,".hog");               //change extension
 666
 667                 PHYSFSEXT_locateCorrectCase(buf);
 668
 669                 found_hogfile = cfile_init(buf);
 670
 671 #ifdef RELEASE                          //for release, require mission to be in hogfile
 672         if (! found_hogfile) {
 673             cfclose(mfile);
 674             free_mission();
 675             return 0;
 676         }
 677 #endif
 678     }
 679
 680     //init vars
 681         Last_level = 0;
 682         Last_secret_level = 0;
 683         Briefing_text_filename[0] = 0;
 684         Ending_text_filename[0] = 0;
 685
 686         while (cfgets(buf,80,mfile)) {
 687
 688                 if (istok(buf,"name")) {
 689                         Current_mission->enhanced = 0;
 690                         continue;                                               //already have name, go to next line
 691                 }
 692                 if (istok(buf,"xname")) {
 693                         Current_mission->enhanced = 1;
 694                         continue;                                               //already have name, go to next line
 695                 }
 696                 if (istok(buf,"zname")) {
 697                         Current_mission->enhanced = 2;
 698                         continue;                                               //already have name, go to next line
 699                 }
 700                 else if (istok(buf,"type"))
 701                         continue;                                               //already have name, go to next line
 702                 else if (istok(buf,"hog")) {
 703                         char    *bufp = buf;
 704
 705                         while (*(bufp++) != '=')
 706                                 ;
 707
 708                         if (*bufp == ' ')
 709                                 while (*(++bufp) == ' ')
 710                                         ;
 711
 712                         cfile_init(bufp);
 713                         mprintf((0, "Hog file override = [%s]\n", bufp));
 714                 }
 715                 else if (istok(buf,"briefing")) {
 716                         if ((v = get_value(buf)) != NULL) {
 717                                 add_term(v);
 718                                 if (strlen(v) < 13)
 719                                         strcpy(Briefing_text_filename,v);
 720                         }
 721                 }
 722                 else if (istok(buf,"ending")) {
 723                         if ((v = get_value(buf)) != NULL) {
 724                                 add_term(v);
 725                                 if (strlen(v) < 13)
 726                                         strcpy(Ending_text_filename,v);
 727                         }
 728                 }
 729                 else if (istok(buf,"num_levels")) {
 730
 731                         if ((v=get_value(buf))!=NULL) {
 732                                 int n_levels,i;
 733
 734                                 n_levels = atoi(v);
 735
 736                                 for (i=0;i<n_levels && cfgets(buf,80,mfile);i++) {
 737
 738                                         add_term(buf);
 739                                         if (strlen(buf) <= 12) {
 740                                                 strcpy(Level_names[i],buf);
 741                                                 Last_level++;
 742                                         }
 743                                         else
 744                                                 break;
 745                                 }
 746
 747                         }
 748                 }
 749                 else if (istok(buf,"num_secrets")) {
 750                         if ((v=get_value(buf))!=NULL) {
 751                                 int i;
 752
 753                                 N_secret_levels = atoi(v);
 754
 755                                 Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
 756
 757                                 for (i=0;i<N_secret_levels && cfgets(buf,80,mfile);i++) {
 758                                         char *t;
 759
 760
 761                                         if ((t=strchr(buf,','))!=NULL) *t++=0;
 762                                         else
 763                                                 break;
 764
 765                                         add_term(buf);
 766                                         if (strlen(buf) <= 12) {
 767                                                 strcpy(Secret_level_names[i],buf);
 768                                                 Secret_level_table[i] = atoi(t);
 769                                                 if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
 770                                                         break;
 771                                                 Last_secret_level--;
 772                                         }
 773                                         else
 774                                                 break;
 775                                 }
 776
 777                         }
 778                 }
 779
 780         }
 781
 782         cfclose(mfile);
 783
 784         if (Last_level <= 0) {
 785                 free_mission();         //no valid mission loaded
 786                 return 0;
 787         }
 788
 789         if (Current_mission->enhanced) {
 790                 char t[50];
 791                 extern void bm_read_extra_robots();
 792                 sprintf(t,"%s.ham",Current_mission_filename);
 793                 bm_read_extra_robots(t, Current_mission->enhanced);
 794                 strncpy(t,Current_mission_filename,6);
 795                 init_extra_robot_movie(t);
 796         }
 797
 798         return 1;
 799 }
 800
 801 //loads the named mission if exists.
 802 //Returns true if mission loaded ok, else false.
 803 int load_mission_by_name(char *mission_name)
 804 {
 805         int i;
 806         mle *mission_list = build_mission_list(1);
 807         bool found = 0;
 808
 809         for (i = 0; i < num_missions; i++)
 810                 if (!stricmp(mission_name, mission_list[i].filename))
 811                         found = load_mission(mission_list + i);
 812
 813         free_mission_list(mission_list);
 814         return found;
 815 }
 816
 817 int select_mission(int anarchy_mode, char *message)
 818 {
 819     mle *mission_list = build_mission_list(anarchy_mode);
 820         int new_mission_num;
 821
 822     if (num_missions <= 1) {
 823         new_mission_num = load_mission(mission_list) ? 0 : -1;
 824     } else {
 825         int i, default_mission;
 826         char * m[MAX_MISSIONS];
 827
 828         default_mission = 0;
 829         for (i = 0; i < num_missions; i++) {
 830             m[i] = mission_list[i].mission_name;
 831             if ( !stricmp( m[i], config_last_mission ) )
 832                 default_mission = i;
 833         }
 834
 835         new_mission_num = newmenu_listbox1( message, num_missions, m, 1, default_mission, NULL );
 836
 837         if (new_mission_num >= 0) {
 838                         // Chose a mission
 839                         strcpy(config_last_mission, m[new_mission_num]  );
 840
 841                         if (!load_mission(mission_list + new_mission_num)) {
 842                                 nm_messagebox( NULL, 1, TXT_OK, TXT_MISSION_ERROR);
 843                                 new_mission_num = -1;
 844                         }
 845                 }
 846     }
 847
 848         free_mission_list(mission_list);
 849     return (new_mission_num >= 0);
 850 }