1 /* $Id: mission.c,v 1.20 2003-02-28 03:54:55 btb Exp $ */
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
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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.
17 * Code to handle multiple missions
20 * Revision 1.4 1995/10/31 10:21:40 allender
21 * no mission support in shareware
23 * Revision 1.3 1995/10/21 22:53:04 allender
24 * moved missions to data folder
26 * Revision 1.2 1995/09/13 08:47:29 allender
27 * made to work with Chris' direct stuff
29 * Revision 1.1 1995/05/16 15:27:48 allender
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.
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?
40 * Revision 2.7 1995/03/20 12:12:11 john
43 * Revision 2.6 1995/03/15 14:32:49 john
44 * Added code to force the Descent CD-rom in the drive.
46 * Revision 2.5 1995/03/15 11:41:15 john
47 * Better Saturn CD-ROM support.
49 * Revision 2.4 1995/03/14 18:24:14 john
50 * Force Destination Saturn to use CD-ROM drive.
52 * Revision 2.3 1995/03/07 14:19:41 mike
53 * More destination saturn stuff.
55 * Revision 2.2 1995/03/06 23:09:03 mike
56 * more saturn stuff: make briefings work for saturn mission.
58 * Revision 2.1 1995/03/06 16:47:48 mike
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.
65 * Revision 1.14 1995/02/15 11:30:37 john
66 * Fixed bug with potential mem overwrite on line 160.
68 * Revision 1.13 1995/02/10 17:53:20 matt
69 * Changed mission name again
71 * Revision 1.12 1995/02/10 17:35:38 matt
72 * Changed name of built-in mission
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
78 * Revision 1.10 1995/01/31 01:19:45 matt
79 * Made build_mission_list() sort missions by name
81 * Revision 1.9 1995/01/30 13:49:58 allender
82 * changed build_mission_list in load_mission_by_name to include
85 * Revision 1.8 1995/01/30 13:03:51 matt
88 * Revision 1.7 1995/01/30 12:55:22 matt
89 * Added vars to point to mission names
91 * Revision 1.6 1995/01/22 18:57:28 matt
92 * Made player highest level work with missions
94 * Revision 1.5 1995/01/22 14:13:08 matt
95 * Added flag in mission list for anarchy-only missions
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
101 * Revision 1.3 1995/01/21 16:27:12 matt
102 * Made endlevel briefing work with missions
104 * Revision 1.2 1995/01/20 22:47:50 matt
105 * Mission system implemented, though imcompletely
107 * Revision 1.1 1995/01/20 13:42:19 matt
134 #include "findfile.h"
136 mle Mission_list[MAX_MISSIONS];
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;
142 int Builtin_mission_num;
143 char Builtin_mission_filename[9];
144 int Builtin_mission_hogsize;
146 int D1_Builtin_mission_num;
147 char D1_Builtin_mission_filename[9];
148 int D1_Builtin_mission_hogsize;
150 //this stuff should get defined elsewhere
152 char Level_names[MAX_LEVELS_PER_MISSION][FILENAME_LEN];
153 char Secret_level_names[MAX_SECRET_LEVELS_PER_MISSION][FILENAME_LEN];
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"
162 // Special versions of mission routines for d1 builtins
165 int load_mission_d1(int mission_num)
169 cfile_use_descent1_hogfile("descent.hog");
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;
175 switch (D1_Builtin_mission_hogsize) {
176 case D1_SHAREWARE_MISSION_HOGSIZE:
177 case D1_SHAREWARE_10_MISSION_HOGSIZE:
181 Last_secret_level = 0;
184 for (i=0;i<Last_level;i++)
185 sprintf(Level_names[i], "level%02d.sdl", i+1);
188 case D1_MAC_SHARE_MISSION_HOGSIZE:
192 Last_secret_level = 0;
195 for (i=0;i<Last_level;i++)
196 sprintf(Level_names[i], "level%02d.sdl", i+1);
199 case D1_OEM_MISSION_HOGSIZE:
203 Last_secret_level = -1;
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);
212 Secret_level_table[0] = 10;
216 Int3(); // fall through
217 case D1_MISSION_HOGSIZE:
218 case D1_10_MISSION_HOGSIZE:
219 case D1_MAC_MISSION_HOGSIZE:
222 Last_level = BIM_LAST_LEVEL;
223 Last_secret_level = BIM_LAST_SECRET_LEVEL;
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);
231 Secret_level_table[0] = 10;
232 Secret_level_table[1] = 21;
233 Secret_level_table[2] = 24;
237 strcpy(Briefing_text_filename,BIM_BRIEFING_FILE);
238 strcpy(Ending_text_filename,BIM_ENDING_FILE);
245 // Special versions of mission routines for shareware
248 int load_mission_shareware(int mission_num)
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;
257 Last_secret_level = 0;
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");
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");
279 // Special versions of mission routines for Diamond/S3 version
282 int load_mission_oem(int mission_num)
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;
291 Last_secret_level = -2;
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");
298 strcpy(Secret_level_names[0],"d2leva-s.rl2");
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");
305 strcpy(Secret_level_names[1],"d2levb-s.rl2");
307 Secret_level_table[0] = 1;
308 Secret_level_table[1] = 5;
314 //strips damn newline from end of line
315 char *mfgets(char *s,int n,CFILE *f)
320 if (r && s[strlen(s)-1] == '\n')
326 //compare a string for a token. returns true if match
327 int istok(char *buf,char *tok)
329 return strnicmp(buf,tok,strlen(tok)) == 0;
333 //adds a terminating 0 after a string at the first white space
334 void add_term(char *s)
336 while (*s && !isspace(*s)) s++;
341 //returns ptr to string after '=' & white space, or NULL if no '='
342 //adds 0 after parm at first white space
343 char *get_value(char *buf)
347 t = strchr(buf,'=')+1;
350 while (*t && isspace(*t)) t++;
356 return NULL; //error!
359 //reads a line, returns ptr to value of passed parm. returns NULL if none
360 char *get_parm_value(char *parm,CFILE *f)
364 if (!mfgets(buf,80,f))
368 return get_value(buf);
373 int ml_sort_func(mle *e0,mle *e1)
375 return stricmp(e0->mission_name,e1->mission_name);
379 extern char CDROM_dir[];
381 //returns 1 if file read ok, else 0
382 int read_mission_file(char *filename,int count,int location)
387 //printf("reading: %s\n", filename);
391 strcpy(filename2,MISSION_DIR);
395 songs_stop_redbook(); //so we can read from the CD
396 strcpy(filename2,CDROM_dir);
400 Int3(); //fall through
403 strcpy(filename2,"");
406 strcat(filename2,filename);
408 mfile = cfopen(filename2,"rb");
412 char temp[FILENAME_LEN],*t;
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
421 strncpy( Mission_list[count].filename, temp, 9 );
422 Mission_list[count].anarchy_only_flag = 0;
423 Mission_list[count].location = location;
425 p = get_parm_value("name",mfile);
427 if (!p) { //try enhanced mission
428 cfseek(mfile,0,SEEK_SET);
429 p = get_parm_value("xname",mfile);
432 if (!p) { //try super-enhanced mission!
433 cfseek(mfile,0,SEEK_SET);
434 p = get_parm_value("zname",mfile);
439 if ((t=strchr(p,';'))!=NULL)
442 while (isspace(*t)) t--;
443 strncpy(Mission_list[count].mission_name,p,MISSION_NAME_LEN);
450 p = get_parm_value("type",mfile);
454 Mission_list[count].anarchy_only_flag = istok(p,"anarchy");
464 void add_d1_builtin_mission_to_list(int *count)
466 if (!cfexist("descent.hog"))
469 D1_Builtin_mission_hogsize = cfile_size("descent.hog");
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;
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;
485 Warning("Unknown D1 hogsize %d\n", D1_Builtin_mission_hogsize);
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;
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;
504 void add_builtin_mission_to_list(int *count)
506 Builtin_mission_hogsize = cfile_size("descent2.hog");
507 if (Builtin_mission_hogsize == -1)
508 Builtin_mission_hogsize = cfile_size("d2demo.hog");
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;
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;
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 if (!read_mission_file(FULL_MISSION_FILENAME ".mn2", 0, ML_CURDIR))
527 Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
530 strcpy(Builtin_mission_filename, Mission_list[*count].filename);
531 Mission_list[*count].descent_version = 2;
532 Mission_list[*count].anarchy_only_flag = 0;
537 void add_missions_to_list(char *search_name, int *count, int anarchy_mode)
540 if( !FileFindFirst( search_name, &find ) ) {
542 if (read_mission_file( find.name, *count, ML_MISSIONDIR )) {
544 if (anarchy_mode || !Mission_list[*count].anarchy_only_flag)
548 } while( !FileFindNext( &find ) && *count < MAX_MISSIONS);
550 if (*count >= MAX_MISSIONS)
551 mprintf((0, "Warning: more missions than d2x can handle\n"));
555 /* move <mission_name> to <place> on mission list, increment <place> */
556 void promote (char * mission_name, int * top_place, int num_missions)
559 char name[FILENAME_LEN], * t;
560 strcpy(name, mission_name);
561 if ((t = strchr(name,'.')) != NULL)
562 *t = 0; //kill extension
563 //printf("promoting: %s\n", name);
564 for (i = *top_place; i < num_missions; i++)
565 if (!stricmp(Mission_list[i].filename, name)) {
566 //swap mission positions
569 temp = Mission_list[*top_place];
570 Mission_list[*top_place] = Mission_list[i];
571 Mission_list[i] = temp;
579 //fills in the global list of missions. Returns the number of missions
580 //in the list. If anarchy_mode set, don't include non-anarchy levels.
582 extern char CDROM_dir[];
583 extern char AltHogDir[];
584 extern char AltHogdir_initialized;
586 int build_mission_list(int anarchy_mode)
588 static int num_missions=-1;
592 //now search for levels on disk
594 //@@Took out this code because after this routine was called once for
595 //@@a list of single-player missions, a subsequent call for a list of
596 //@@anarchy missions would not scan again, and thus would not find the
597 //@@anarchy-only missions. If we retain the minimum level of install,
598 //@@we may want to put the code back in, having it always scan for all
599 //@@missions, and have the code that uses it sort out the ones it wants.
600 //@@ if (num_missions != -1) {
601 //@@ if (Current_mission_num != 0)
602 //@@ load_mission(0); //set built-in mission as default
603 //@@ return num_missions;
606 add_builtin_mission_to_list(&count); //read built-in first
607 add_d1_builtin_mission_to_list(&count);
608 add_missions_to_list(MISSION_DIR "*.mn2", &count, anarchy_mode);
609 add_missions_to_list(MISSION_DIR "*.msn", &count, anarchy_mode);
611 if (AltHogdir_initialized) {
612 char search_name[PATH_MAX + 5];
613 strcpy(search_name, AltHogDir);
614 strcat(search_name, "/" MISSION_DIR "*.mn2");
615 add_missions_to_list(search_name, &count, anarchy_mode);
616 strcpy(search_name, AltHogDir);
617 strcat(search_name, "/" MISSION_DIR "*.msn");
618 add_missions_to_list(search_name, &count, anarchy_mode);
621 // move original missions (in story-chronological order)
622 // to top of mission list
624 promote("descent", &top_place, count); // original descent 1 mission
625 D1_Builtin_mission_num = top_place - 1;
626 promote(Builtin_mission_filename, &top_place, count); // d2 or d2demo
627 Builtin_mission_num = top_place - 1;
628 promote("d2x", &top_place, count); // vertigo
630 if (count > top_place)
631 qsort(&Mission_list[top_place],
633 sizeof(*Mission_list),
634 (int (*)( const void *, const void * ))ml_sort_func);
637 if (count > top_place)
638 qsort(&Mission_list[top_place],
640 sizeof(*Mission_list),
641 (int (*)( const void *, const void * ))ml_sort_func);
643 //load_mission(0); //set built-in mission as default
645 num_missions = count;
650 void init_extra_robot_movie(char *filename);
652 //values for built-in mission
654 //loads the specfied mission from the mission list.
655 //build_mission_list() must have been called.
656 //Returns true if mission loaded ok, else false.
657 int load_mission(int mission_num)
662 int enhanced_mission = 0;
664 if (mission_num == D1_Builtin_mission_num) {
665 cfile_use_descent1_hogfile("descent.hog");
666 switch (D1_Builtin_mission_hogsize) {
668 Int3(); // fall through
669 case D1_MISSION_HOGSIZE:
670 case D1_10_MISSION_HOGSIZE:
671 case D1_MAC_MISSION_HOGSIZE:
672 case D1_OEM_MISSION_HOGSIZE:
673 case D1_SHAREWARE_MISSION_HOGSIZE:
674 case D1_SHAREWARE_10_MISSION_HOGSIZE:
675 case D1_MAC_SHARE_MISSION_HOGSIZE:
676 return load_mission_d1(mission_num);
681 if (mission_num == Builtin_mission_num) {
682 switch (Builtin_mission_hogsize) {
683 case SHAREWARE_MISSION_HOGSIZE:
684 case MAC_SHARE_MISSION_HOGSIZE:
685 return load_mission_shareware(mission_num);
687 case OEM_MISSION_HOGSIZE:
688 return load_mission_oem(mission_num);
691 Int3(); // fall through
692 case FULL_MISSION_HOGSIZE:
693 // continue on... (use d2.mn2 from hogfile)
698 Current_mission_num = mission_num;
700 mprintf(( 0, "Loading mission %d\n", mission_num ));
702 //read mission from file
704 switch (Mission_list[mission_num].location) {
706 strcpy(buf,MISSION_DIR);
709 strcpy(buf,CDROM_dir);
712 Int3(); //fall through
717 strcat(buf,Mission_list[mission_num].filename);
718 if (Mission_list[mission_num].descent_version == 2)
723 mfile = cfopen(buf,"rb");
725 Current_mission_num = -1;
729 //for non-builtin missions, load HOG
730 if (strcmp(Mission_list[mission_num].filename, Builtin_mission_filename)) {
732 strcpy(buf+strlen(buf)-4,".hog"); //change extension
734 found_hogfile = cfile_use_alternate_hogfile(buf);
736 #ifdef RELEASE //for release, require mission to be in hogfile
737 if (! found_hogfile) {
739 Current_mission_num = -1;
744 // for Descent 1 missions, load descent.hog
745 if (Mission_list[mission_num].descent_version == 1 && strcmp(buf, "descent.hog"))
746 if (!cfile_use_descent1_hogfile("descent.hog"))
747 Warning("descent.hog not available, this mission may be missing some files required for briefings\n");
752 Last_secret_level = 0;
753 Briefing_text_filename[0] = 0;
754 Ending_text_filename[0] = 0;
756 while (mfgets(buf,80,mfile)) {
758 if (istok(buf,"name"))
759 continue; //already have name, go to next line
760 if (istok(buf,"xname")) {
761 enhanced_mission = 1;
762 continue; //already have name, go to next line
764 if (istok(buf,"zname")) {
765 enhanced_mission = 2;
766 continue; //already have name, go to next line
768 else if (istok(buf,"type"))
769 continue; //already have name, go to next line
770 else if (istok(buf,"hog")) {
773 while (*(bufp++) != '=')
777 while (*(++bufp) == ' ')
780 cfile_use_alternate_hogfile(bufp);
781 mprintf((0, "Hog file override = [%s]\n", bufp));
783 else if (istok(buf,"briefing")) {
784 if ((v = get_value(buf)) != NULL) {
787 strcpy(Briefing_text_filename,v);
790 else if (istok(buf,"ending")) {
791 if ((v = get_value(buf)) != NULL) {
794 strcpy(Ending_text_filename,v);
797 else if (istok(buf,"num_levels")) {
799 if ((v=get_value(buf))!=NULL) {
804 for (i=0;i<n_levels && mfgets(buf,80,mfile);i++) {
807 if (strlen(buf) <= 12) {
808 strcpy(Level_names[i],buf);
817 else if (istok(buf,"num_secrets")) {
818 if ((v=get_value(buf))!=NULL) {
821 N_secret_levels = atoi(v);
823 Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
825 for (i=0;i<N_secret_levels && mfgets(buf,80,mfile);i++) {
829 if ((t=strchr(buf,','))!=NULL) *t++=0;
834 if (strlen(buf) <= 12) {
835 strcpy(Secret_level_names[i],buf);
836 Secret_level_table[i] = atoi(t);
837 if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
852 if (Last_level <= 0) {
853 Current_mission_num = -1; //no valid mission loaded
857 Current_mission_filename = Mission_list[Current_mission_num].filename;
858 Current_mission_longname = Mission_list[Current_mission_num].mission_name;
860 if (enhanced_mission) {
862 extern void bm_read_extra_robots();
863 sprintf(t,"%s.ham",Current_mission_filename);
864 bm_read_extra_robots(t,enhanced_mission);
865 strncpy(t,Current_mission_filename,6);
867 init_extra_robot_movie(t);
873 //loads the named mission if exists.
874 //Returns true if mission loaded ok, else false.
875 int load_mission_by_name(char *mission_name)
879 n = build_mission_list(1);
882 if (!stricmp(mission_name,Mission_list[i].filename))
883 return load_mission(i);
885 return 0; //couldn't find mission