1 /* $Id: mission.c,v 1.21 2003/03/14 09:17:08 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 * Old Log:
20 * Revision 1.4 1995/10/31 10:21:40 allender
21 * no mission support in shareware
22 *
23 * Revision 1.3 1995/10/21 22:53:04 allender
24 * moved missions to data folder
25 *
26 * Revision 1.2 1995/09/13 08:47:29 allender
27 * made to work with Chris' direct stuff
28 *
29 * Revision 1.1 1995/05/16 15:27:48 allender
30 * Initial revision
31 *
32 * Revision 2.9 1995/05/26 16:16:32 john
33 * Split SATURN into define's for requiring cd, using cd, etc.
34 * Also started adding all the Rockwell stuff.
35 *
36 * Revision 2.8 1995/03/20 15:49:31 mike
37 * Remove eof char from comment which confused make depend, causing
38 * no mission.obj: line in makefile. Pretty stupid tool, huh?
39 *
40 * Revision 2.7 1995/03/20 12:12:11 john
41 * Added ifdef SATURN.
42 *
43 * Revision 2.6 1995/03/15 14:32:49 john
44 * Added code to force the Descent CD-rom in the drive.
45 *
46 * Revision 2.5 1995/03/15 11:41:15 john
47 * Better Saturn CD-ROM support.
48 *
49 * Revision 2.4 1995/03/14 18:24:14 john
50 * Force Destination Saturn to use CD-ROM drive.
51 *
52 * Revision 2.3 1995/03/07 14:19:41 mike
53 * More destination saturn stuff.
54 *
55 * Revision 2.2 1995/03/06 23:09:03 mike
56 * more saturn stuff: make briefings work for saturn mission.
57 *
58 * Revision 2.1 1995/03/06 16:47:48 mike
59 * destination saturn
60 *
61 * Revision 2.0 1995/02/27 11:27:49 john
62 * New version 2.0, which has no anonymous unions, builds with
63 * Watcom 10.0, and doesn't require parsing BITMAPS.TBL.
64 *
65 * Revision 1.14 1995/02/15 11:30:37 john
66 * Fixed bug with potential mem overwrite on line 160.
67 *
68 * Revision 1.13 1995/02/10 17:53:20 matt
69 * Changed mission name again
70 *
71 * Revision 1.12 1995/02/10 17:35:38 matt
72 * Changed name of built-in mission
73 *
74 * Revision 1.11 1995/02/07 17:13:51 allender
75 * removed return statement in load_mission so that built in mission will
76 * actually set the Current_mission_name and _filename
77 *
78 * Revision 1.10 1995/01/31 01:19:45 matt
79 * Made build_mission_list() sort missions by name
80 *
81 * Revision 1.9 1995/01/30 13:49:58 allender
82 * changed build_mission_list in load_mission_by_name to include
83 * anarchy levels.
84 *
85 * Revision 1.8 1995/01/30 13:03:51 matt
86 * Fixed dumb mistake
87 *
88 * Revision 1.7 1995/01/30 12:55:22 matt
89 * Added vars to point to mission names
90 *
91 * Revision 1.6 1995/01/22 18:57:28 matt
92 * Made player highest level work with missions
93 *
94 * Revision 1.5 1995/01/22 14:13:08 matt
95 * Added flag in mission list for anarchy-only missions
96 *
97 * Revision 1.4 1995/01/21 23:13:12 matt
98 * Made high scores with (not work, really) with loaded missions
99 * Don't give player high score when quit game
100 *
101 * Revision 1.3 1995/01/21 16:27:12 matt
102 * Made endlevel briefing work with missions
103 *
104 * Revision 1.2 1995/01/20 22:47:50 matt
105 * Mission system implemented, though imcompletely
106 *
107 * Revision 1.1 1995/01/20 13:42:19 matt
108 * Initial revision
109 *
110 *
111 */
112
113 #ifdef HAVE_CONFIG_H
114 #include <conf.h>
115 #endif
116
117 #include <stdio.h>
118 #include <stdlib.h>
119 #include <string.h>
120 #include <ctype.h>
121 #include <limits.h>
122
123 #include "pstypes.h"
124 #include "cfile.h"
125
126 #include "strutil.h"
127 #include "inferno.h"
128 #include "mission.h"
129 #include "gameseq.h"
130 #include "titles.h"
131 #include "songs.h"
132 #include "mono.h"
133 #include "error.h"
134 #include "findfile.h"
135
136 mle Mission_list[MAX_MISSIONS];
137
138 int Current_mission_num;
139 int N_secret_levels; // Made a global by MK for scoring purposes. August 1, 1995.
140 char *Current_mission_filename,*Current_mission_longname;
141
142 int Builtin_mission_num;
143 char Builtin_mission_filename[9];
144 int Builtin_mission_hogsize;
145
146 int D1_Builtin_mission_num;
147 char D1_Builtin_mission_filename[9];
148 int D1_Builtin_mission_hogsize;
149
150 //this stuff should get defined elsewhere
151
152 char Level_names[MAX_LEVELS_PER_MISSION][FILENAME_LEN];
153 char Secret_level_names[MAX_SECRET_LEVELS_PER_MISSION][FILENAME_LEN];
154
155 //values for d1 built-in mission
156 #define BIM_LAST_LEVEL 27
157 #define BIM_LAST_SECRET_LEVEL -3
158 #define BIM_BRIEFING_FILE "briefing.tex"
159 #define BIM_ENDING_FILE "endreg.tex"
160
161 //
162 // Special versions of mission routines for d1 builtins
163 //
164
load_mission_d1(int mission_num)165 int load_mission_d1(int mission_num)
166 {
167 int i;
168
169 cfile_use_descent1_hogfile("descent.hog");
170
171 Current_mission_num = mission_num;
172 Current_mission_filename = Mission_list[mission_num].filename;
173 Current_mission_longname = Mission_list[mission_num].mission_name;
174
175 switch (D1_Builtin_mission_hogsize) {
176 case D1_SHAREWARE_MISSION_HOGSIZE:
177 case D1_SHAREWARE_10_MISSION_HOGSIZE:
178 N_secret_levels = 0;
179
180 Last_level = 7;
181 Last_secret_level = 0;
182
183 //build level names
184 for (i=0;i<Last_level;i++)
185 sprintf(Level_names[i], "level%02d.sdl", i+1);
186
187 break;
188 case D1_MAC_SHARE_MISSION_HOGSIZE:
189 N_secret_levels = 0;
190
191 Last_level = 3;
192 Last_secret_level = 0;
193
194 //build level names
195 for (i=0;i<Last_level;i++)
196 sprintf(Level_names[i], "level%02d.sdl", i+1);
197
198 break;
199 case D1_OEM_MISSION_HOGSIZE:
200 N_secret_levels = 1;
201
202 Last_level = 15;
203 Last_secret_level = -1;
204
205 //build level names
206 for (i=0; i < Last_level - 1; i++)
207 sprintf(Level_names[i], "level%02d.rdl", i+1);
208 sprintf(Level_names[i], "saturn%02d.rdl", i+1);
209 for (i=0; i < -Last_secret_level; i++)
210 sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
211
212 Secret_level_table[0] = 10;
213
214 break;
215 default:
216 Int3(); // fall through
217 case D1_MISSION_HOGSIZE:
218 case D1_10_MISSION_HOGSIZE:
219 case D1_MAC_MISSION_HOGSIZE:
220 N_secret_levels = 3;
221
222 Last_level = BIM_LAST_LEVEL;
223 Last_secret_level = BIM_LAST_SECRET_LEVEL;
224
225 //build level names
226 for (i=0;i<Last_level;i++)
227 sprintf(Level_names[i], "level%02d.rdl", i+1);
228 for (i=0;i<-Last_secret_level;i++)
229 sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
230
231 Secret_level_table[0] = 10;
232 Secret_level_table[1] = 21;
233 Secret_level_table[2] = 24;
234
235 break;
236 }
237 strcpy(Briefing_text_filename,BIM_BRIEFING_FILE);
238 strcpy(Ending_text_filename,BIM_ENDING_FILE);
239
240 return 1;
241 }
242
243
244 //
245 // Special versions of mission routines for shareware
246 //
247
load_mission_shareware(int mission_num)248 int load_mission_shareware(int mission_num)
249 {
250 Current_mission_num = mission_num;
251 Current_mission_filename = Mission_list[mission_num].filename;
252 Current_mission_longname = Mission_list[mission_num].mission_name;
253
254 N_secret_levels = 0;
255
256 Last_level = 3;
257 Last_secret_level = 0;
258
259 switch (Builtin_mission_hogsize) {
260 case MAC_SHARE_MISSION_HOGSIZE:
261 // mac demo is using the regular hog and rl2 files
262 strcpy(Level_names[0],"d2leva-1.rl2");
263 strcpy(Level_names[1],"d2leva-2.rl2");
264 strcpy(Level_names[2],"d2leva-3.rl2");
265 break;
266 default:
267 Int3(); // fall through
268 case SHAREWARE_MISSION_HOGSIZE:
269 strcpy(Level_names[0],"d2leva-1.sl2");
270 strcpy(Level_names[1],"d2leva-2.sl2");
271 strcpy(Level_names[2],"d2leva-3.sl2");
272 }
273
274 return 1;
275 }
276
277
278 //
279 // Special versions of mission routines for Diamond/S3 version
280 //
281
load_mission_oem(int mission_num)282 int load_mission_oem(int mission_num)
283 {
284 Current_mission_num = mission_num;
285 Current_mission_filename = Mission_list[mission_num].filename;
286 Current_mission_longname = Mission_list[mission_num].mission_name;
287
288 N_secret_levels = 2;
289
290 Last_level = 8;
291 Last_secret_level = -2;
292
293 strcpy(Level_names[0],"d2leva-1.rl2");
294 strcpy(Level_names[1],"d2leva-2.rl2");
295 strcpy(Level_names[2],"d2leva-3.rl2");
296 strcpy(Level_names[3],"d2leva-4.rl2");
297
298 strcpy(Secret_level_names[0],"d2leva-s.rl2");
299
300 strcpy(Level_names[4],"d2levb-1.rl2");
301 strcpy(Level_names[5],"d2levb-2.rl2");
302 strcpy(Level_names[6],"d2levb-3.rl2");
303 strcpy(Level_names[7],"d2levb-4.rl2");
304
305 strcpy(Secret_level_names[1],"d2levb-s.rl2");
306
307 Secret_level_table[0] = 1;
308 Secret_level_table[1] = 5;
309
310 return 1;
311 }
312
313
314 //strips damn newline from end of line
mfgets(char * s,int n,CFILE * f)315 char *mfgets(char *s,int n,CFILE *f)
316 {
317 char *r;
318
319 r = cfgets(s,n,f);
320 if (r && s[strlen(s)-1] == '\n')
321 s[strlen(s)-1] = 0;
322
323 return r;
324 }
325
326 //compare a string for a token. returns true if match
istok(char * buf,char * tok)327 int istok(char *buf,char *tok)
328 {
329 return strnicmp(buf,tok,strlen(tok)) == 0;
330
331 }
332
333 //adds a terminating 0 after a string at the first white space
add_term(char * s)334 void add_term(char *s)
335 {
336 while (*s && !isspace(*s)) s++;
337
338 *s = 0; //terminate!
339 }
340
341 //returns ptr to string after '=' & white space, or NULL if no '='
342 //adds 0 after parm at first white space
get_value(char * buf)343 char *get_value(char *buf)
344 {
345 char *t;
346
347 t = strchr(buf,'=')+1;
348
349 if (t) {
350 while (*t && isspace(*t)) t++;
351
352 if (*t)
353 return t;
354 }
355
356 return NULL; //error!
357 }
358
359 //reads a line, returns ptr to value of passed parm. returns NULL if none
get_parm_value(char * parm,CFILE * f)360 char *get_parm_value(char *parm,CFILE *f)
361 {
362 static char buf[80];
363
364 if (!mfgets(buf,80,f))
365 return NULL;
366
367 if (istok(buf,parm))
368 return get_value(buf);
369 else
370 return NULL;
371 }
372
ml_sort_func(mle * e0,mle * e1)373 int ml_sort_func(mle *e0,mle *e1)
374 {
375 return stricmp(e0->mission_name,e1->mission_name);
376
377 }
378
379 extern char CDROM_dir[];
380
381 //returns 1 if file read ok, else 0
read_mission_file(char * filename,int count,int location)382 int read_mission_file(char *filename,int count,int location)
383 {
384 char filename2[100];
385 CFILE *mfile;
386
387 //printf("reading: %s\n", filename);
388
389 switch (location) {
390 case ML_MISSIONDIR:
391 strcpy(filename2,MISSION_DIR);
392 break;
393
394 case ML_CDROM:
395 songs_stop_redbook(); //so we can read from the CD
396 strcpy(filename2,CDROM_dir);
397 break;
398
399 default:
400 Int3(); //fall through
401
402 case ML_CURDIR:
403 strcpy(filename2,"");
404 break;
405 }
406 strcat(filename2,filename);
407
408 mfile = cfopen(filename2,"rb");
409
410 if (mfile) {
411 char *p;
412 char temp[FILENAME_LEN],*t;
413
414 strcpy(temp,filename);
415 if ((t = strchr(temp,'.')) == NULL)
416 return 0; //missing extension
417 // look if it's .mn2 or .msn
418 Mission_list[count].descent_version = (t[3] == '2') ? 2 : 1;
419 *t = 0; //kill extension
420
421 strncpy( Mission_list[count].filename, temp, 9 );
422 Mission_list[count].anarchy_only_flag = 0;
423 Mission_list[count].location = location;
424
425 p = get_parm_value("name",mfile);
426
427 if (!p) { //try enhanced mission
428 cfseek(mfile,0,SEEK_SET);
429 p = get_parm_value("xname",mfile);
430 }
431
432 if (!p) { //try super-enhanced mission!
433 cfseek(mfile,0,SEEK_SET);
434 p = get_parm_value("zname",mfile);
435 }
436
437 if (p) {
438 char *t;
439 if ((t=strchr(p,';'))!=NULL)
440 *t=0;
441 t = p + strlen(p)-1;
442 while (isspace(*t)) t--;
443 strncpy(Mission_list[count].mission_name,p,MISSION_NAME_LEN);
444 }
445 else {
446 cfclose(mfile);
447 return 0;
448 }
449
450 p = get_parm_value("type",mfile);
451
452 //get mission type
453 if (p)
454 Mission_list[count].anarchy_only_flag = istok(p,"anarchy");
455
456 cfclose(mfile);
457
458 return 1;
459 }
460
461 return 0;
462 }
463
add_d1_builtin_mission_to_list(int * count)464 void add_d1_builtin_mission_to_list(int *count)
465 {
466 if (!cfexist("descent.hog"))
467 return;
468
469 D1_Builtin_mission_hogsize = cfile_size("descent.hog");
470
471 switch (D1_Builtin_mission_hogsize) {
472 case D1_SHAREWARE_MISSION_HOGSIZE:
473 case D1_SHAREWARE_10_MISSION_HOGSIZE:
474 case D1_MAC_SHARE_MISSION_HOGSIZE:
475 strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
476 strcpy(Mission_list[*count].mission_name, D1_SHAREWARE_MISSION_NAME);
477 Mission_list[*count].anarchy_only_flag = 0;
478 break;
479 case D1_OEM_MISSION_HOGSIZE:
480 strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
481 strcpy(Mission_list[*count].mission_name, D1_OEM_MISSION_NAME);
482 Mission_list[*count].anarchy_only_flag = 0;
483 break;
484 default:
485 Warning("Unknown D1 hogsize %d\n", D1_Builtin_mission_hogsize);
486 Int3();
487 // fall through
488 case D1_MISSION_HOGSIZE:
489 case D1_10_MISSION_HOGSIZE:
490 case D1_MAC_MISSION_HOGSIZE:
491 strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
492 strcpy(Mission_list[*count].mission_name, D1_MISSION_NAME);
493 Mission_list[*count].anarchy_only_flag = 0;
494 break;
495 }
496
497 strcpy(D1_Builtin_mission_filename, Mission_list[*count].filename);
498 Mission_list[*count].descent_version = 1;
499 Mission_list[*count].anarchy_only_flag = 0;
500 ++(*count);
501 }
502
503
add_builtin_mission_to_list(int * count)504 void add_builtin_mission_to_list(int *count)
505 {
506 Builtin_mission_hogsize = cfile_size("descent2.hog");
507 if (Builtin_mission_hogsize == -1)
508 Builtin_mission_hogsize = cfile_size("d2demo.hog");
509
510 switch (Builtin_mission_hogsize) {
511 case SHAREWARE_MISSION_HOGSIZE:
512 case MAC_SHARE_MISSION_HOGSIZE:
513 strcpy(Mission_list[*count].filename,SHAREWARE_MISSION_FILENAME);
514 strcpy(Mission_list[*count].mission_name,SHAREWARE_MISSION_NAME);
515 Mission_list[*count].anarchy_only_flag = 0;
516 break;
517 case OEM_MISSION_HOGSIZE:
518 strcpy(Mission_list[*count].filename,OEM_MISSION_FILENAME);
519 strcpy(Mission_list[*count].mission_name,OEM_MISSION_NAME);
520 Mission_list[*count].anarchy_only_flag = 0;
521 break;
522 default:
523 Warning("Unknown hogsize %d, trying %s\n", Builtin_mission_hogsize, FULL_MISSION_FILENAME ".mn2");
524 Int3(); //fall through
525 case FULL_MISSION_HOGSIZE:
526 case MAC_FULL_MISSION_HOGSIZE:
527 if (!read_mission_file(FULL_MISSION_FILENAME ".mn2", 0, ML_CURDIR))
528 Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
529 }
530
531 strcpy(Builtin_mission_filename, Mission_list[*count].filename);
532 Mission_list[*count].descent_version = 2;
533 Mission_list[*count].anarchy_only_flag = 0;
534 ++(*count);
535 }
536
537
add_missions_to_list(char * search_name,int * count,int anarchy_mode)538 void add_missions_to_list(char *search_name, int *count, int anarchy_mode)
539 {
540 FILEFINDSTRUCT find;
541 if( !FileFindFirst( search_name, &find ) ) {
542 do {
543 if (read_mission_file( find.name, *count, ML_MISSIONDIR )) {
544
545 if (anarchy_mode || !Mission_list[*count].anarchy_only_flag)
546 ++(*count);
547 }
548
549 } while( !FileFindNext( &find ) && *count < MAX_MISSIONS);
550 FileFindClose();
551 if (*count >= MAX_MISSIONS)
552 mprintf((0, "Warning: more missions than d2x can handle\n"));
553 }
554 }
555
556 /* move <mission_name> to <place> on mission list, increment <place> */
promote(char * mission_name,int * top_place,int num_missions)557 void promote (char * mission_name, int * top_place, int num_missions)
558 {
559 int i;
560 char name[FILENAME_LEN], * t;
561 strcpy(name, mission_name);
562 if ((t = strchr(name,'.')) != NULL)
563 *t = 0; //kill extension
564 //printf("promoting: %s\n", name);
565 for (i = *top_place; i < num_missions; i++)
566 if (!stricmp(Mission_list[i].filename, name)) {
567 //swap mission positions
568 mle temp;
569
570 temp = Mission_list[*top_place];
571 Mission_list[*top_place] = Mission_list[i];
572 Mission_list[i] = temp;
573 ++(*top_place);
574 break;
575 }
576 }
577
578
579
580 //fills in the global list of missions. Returns the number of missions
581 //in the list. If anarchy_mode set, don't include non-anarchy levels.
582
583 extern char CDROM_dir[];
584 extern char AltHogDir[];
585 extern char AltHogdir_initialized;
586
build_mission_list(int anarchy_mode)587 int build_mission_list(int anarchy_mode)
588 {
589 static int num_missions=-1;
590 int count = 0;
591 int top_place;
592
593 //now search for levels on disk
594
595 //@@Took out this code because after this routine was called once for
596 //@@a list of single-player missions, a subsequent call for a list of
597 //@@anarchy missions would not scan again, and thus would not find the
598 //@@anarchy-only missions. If we retain the minimum level of install,
599 //@@we may want to put the code back in, having it always scan for all
600 //@@missions, and have the code that uses it sort out the ones it wants.
601 //@@ if (num_missions != -1) {
602 //@@ if (Current_mission_num != 0)
603 //@@ load_mission(0); //set built-in mission as default
604 //@@ return num_missions;
605 //@@ }
606
607 add_builtin_mission_to_list(&count); //read built-in first
608 add_d1_builtin_mission_to_list(&count);
609 add_missions_to_list(MISSION_DIR "*.mn2", &count, anarchy_mode);
610 add_missions_to_list(MISSION_DIR "*.msn", &count, anarchy_mode);
611
612 if (AltHogdir_initialized) {
613 char search_name[PATH_MAX + 5];
614 strcpy(search_name, AltHogDir);
615 strcat(search_name, "/" MISSION_DIR "*.mn2");
616 add_missions_to_list(search_name, &count, anarchy_mode);
617 strcpy(search_name, AltHogDir);
618 strcat(search_name, "/" MISSION_DIR "*.msn");
619 add_missions_to_list(search_name, &count, anarchy_mode);
620 }
621
622 // move original missions (in story-chronological order)
623 // to top of mission list
624 top_place = 0;
625 promote("descent", &top_place, count); // original descent 1 mission
626 D1_Builtin_mission_num = top_place - 1;
627 promote(Builtin_mission_filename, &top_place, count); // d2 or d2demo
628 Builtin_mission_num = top_place - 1;
629 promote("d2x", &top_place, count); // vertigo
630
631 if (count > top_place)
632 qsort(&Mission_list[top_place],
633 count - top_place,
634 sizeof(*Mission_list),
635 (int (*)( const void *, const void * ))ml_sort_func);
636
637
638 if (count > top_place)
639 qsort(&Mission_list[top_place],
640 count - top_place,
641 sizeof(*Mission_list),
642 (int (*)( const void *, const void * ))ml_sort_func);
643
644 //load_mission(0); //set built-in mission as default
645
646 num_missions = count;
647
648 return count;
649 }
650
651 void init_extra_robot_movie(char *filename);
652
653 //values for built-in mission
654
655 //loads the specfied mission from the mission list.
656 //build_mission_list() must have been called.
657 //Returns true if mission loaded ok, else false.
load_mission(int mission_num)658 int load_mission(int mission_num)
659 {
660 CFILE *mfile;
661 char buf[80], *v;
662 int found_hogfile;
663 int enhanced_mission = 0;
664
665 if (mission_num == D1_Builtin_mission_num) {
666 cfile_use_descent1_hogfile("descent.hog");
667 switch (D1_Builtin_mission_hogsize) {
668 default:
669 Int3(); // fall through
670 case D1_MISSION_HOGSIZE:
671 case D1_10_MISSION_HOGSIZE:
672 case D1_MAC_MISSION_HOGSIZE:
673 case D1_OEM_MISSION_HOGSIZE:
674 case D1_SHAREWARE_MISSION_HOGSIZE:
675 case D1_SHAREWARE_10_MISSION_HOGSIZE:
676 case D1_MAC_SHARE_MISSION_HOGSIZE:
677 return load_mission_d1(mission_num);
678 break;
679 }
680 }
681
682 if (mission_num == Builtin_mission_num) {
683 switch (Builtin_mission_hogsize) {
684 case SHAREWARE_MISSION_HOGSIZE:
685 case MAC_SHARE_MISSION_HOGSIZE:
686 return load_mission_shareware(mission_num);
687 break;
688 case OEM_MISSION_HOGSIZE:
689 return load_mission_oem(mission_num);
690 break;
691 default:
692 Int3(); // fall through
693 case FULL_MISSION_HOGSIZE:
694 case MAC_FULL_MISSION_HOGSIZE:
695 // continue on... (use d2.mn2 from hogfile)
696 break;
697 }
698 }
699
700 Current_mission_num = mission_num;
701
702 mprintf(( 0, "Loading mission %d\n", mission_num ));
703
704 //read mission from file
705
706 switch (Mission_list[mission_num].location) {
707 case ML_MISSIONDIR:
708 strcpy(buf,MISSION_DIR);
709 break;
710 case ML_CDROM:
711 strcpy(buf,CDROM_dir);
712 break;
713 default:
714 Int3(); //fall through
715 case ML_CURDIR:
716 strcpy(buf,"");
717 break;
718 }
719 strcat(buf,Mission_list[mission_num].filename);
720 if (Mission_list[mission_num].descent_version == 2)
721 strcat(buf,".mn2");
722 else
723 strcat(buf,".msn");
724
725 mfile = cfopen(buf,"rb");
726 if (mfile == NULL) {
727 Current_mission_num = -1;
728 return 0; //error!
729 }
730
731 //for non-builtin missions, load HOG
732 if (strcmp(Mission_list[mission_num].filename, Builtin_mission_filename)) {
733
734 strcpy(buf+strlen(buf)-4,".hog"); //change extension
735
736 found_hogfile = cfile_use_alternate_hogfile(buf);
737
738 #ifdef RELEASE //for release, require mission to be in hogfile
739 if (! found_hogfile) {
740 cfclose(mfile);
741 Current_mission_num = -1;
742 return 0;
743 }
744 #endif
745
746 // for Descent 1 missions, load descent.hog
747 if (Mission_list[mission_num].descent_version == 1 && strcmp(buf, "descent.hog"))
748 if (!cfile_use_descent1_hogfile("descent.hog"))
749 Warning("descent.hog not available, this mission may be missing some files required for briefings\n");
750 }
751
752 //init vars
753 Last_level = 0;
754 Last_secret_level = 0;
755 Briefing_text_filename[0] = 0;
756 Ending_text_filename[0] = 0;
757
758 while (mfgets(buf,80,mfile)) {
759
760 if (istok(buf,"name"))
761 continue; //already have name, go to next line
762 if (istok(buf,"xname")) {
763 enhanced_mission = 1;
764 continue; //already have name, go to next line
765 }
766 if (istok(buf,"zname")) {
767 enhanced_mission = 2;
768 continue; //already have name, go to next line
769 }
770 else if (istok(buf,"type"))
771 continue; //already have name, go to next line
772 else if (istok(buf,"hog")) {
773 char *bufp = buf;
774
775 while (*(bufp++) != '=')
776 ;
777
778 if (*bufp == ' ')
779 while (*(++bufp) == ' ')
780 ;
781
782 cfile_use_alternate_hogfile(bufp);
783 mprintf((0, "Hog file override = [%s]\n", bufp));
784 }
785 else if (istok(buf,"briefing")) {
786 if ((v = get_value(buf)) != NULL) {
787 add_term(v);
788 if (strlen(v) < 13)
789 strcpy(Briefing_text_filename,v);
790 }
791 }
792 else if (istok(buf,"ending")) {
793 if ((v = get_value(buf)) != NULL) {
794 add_term(v);
795 if (strlen(v) < 13)
796 strcpy(Ending_text_filename,v);
797 }
798 }
799 else if (istok(buf,"num_levels")) {
800
801 if ((v=get_value(buf))!=NULL) {
802 int n_levels,i;
803
804 n_levels = atoi(v);
805
806 for (i=0;i<n_levels && mfgets(buf,80,mfile);i++) {
807
808 add_term(buf);
809 if (strlen(buf) <= 12) {
810 strcpy(Level_names[i],buf);
811 Last_level++;
812 }
813 else
814 break;
815 }
816
817 }
818 }
819 else if (istok(buf,"num_secrets")) {
820 if ((v=get_value(buf))!=NULL) {
821 int i;
822
823 N_secret_levels = atoi(v);
824
825 Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
826
827 for (i=0;i<N_secret_levels && mfgets(buf,80,mfile);i++) {
828 char *t;
829
830
831 if ((t=strchr(buf,','))!=NULL) *t++=0;
832 else
833 break;
834
835 add_term(buf);
836 if (strlen(buf) <= 12) {
837 strcpy(Secret_level_names[i],buf);
838 Secret_level_table[i] = atoi(t);
839 if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
840 break;
841 Last_secret_level--;
842 }
843 else
844 break;
845 }
846
847 }
848 }
849
850 }
851
852 cfclose(mfile);
853
854 if (Last_level <= 0) {
855 Current_mission_num = -1; //no valid mission loaded
856 return 0;
857 }
858
859 Current_mission_filename = Mission_list[Current_mission_num].filename;
860 Current_mission_longname = Mission_list[Current_mission_num].mission_name;
861
862 if (enhanced_mission) {
863 char t[50];
864 extern void bm_read_extra_robots();
865 sprintf(t,"%s.ham",Current_mission_filename);
866 bm_read_extra_robots(t,enhanced_mission);
867 strncpy(t,Current_mission_filename,6);
868 strcat(t,"-l.mvl");
869 init_extra_robot_movie(t);
870 }
871
872 return 1;
873 }
874
875 //loads the named mission if exists.
876 //Returns true if mission loaded ok, else false.
load_mission_by_name(char * mission_name)877 int load_mission_by_name(char *mission_name)
878 {
879 int n,i;
880
881 n = build_mission_list(1);
882
883 for (i=0;i<n;i++)
884 if (!stricmp(mission_name,Mission_list[i].filename))
885 return load_mission(i);
886
887 return 0; //couldn't find mission
888 }
889