1 /* $Id: mission.c,v 1.26 2004-08-29 17:57:23 schaffner Exp $ */
3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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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
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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
44 mle Mission_list[MAX_MISSIONS];
46 int Current_mission_num;
47 int N_secret_levels; // Made a global by MK for scoring purposes. August 1, 1995.
48 char *Current_mission_filename,*Current_mission_longname;
50 int Builtin_mission_num;
51 char Builtin_mission_filename[9];
52 int Builtin_mission_hogsize;
54 int D1_Builtin_mission_num;
55 char D1_Builtin_mission_filename[9];
56 int D1_Builtin_mission_hogsize;
58 //this stuff should get defined elsewhere
60 char Level_names[MAX_LEVELS_PER_MISSION][FILENAME_LEN];
61 char Secret_level_names[MAX_SECRET_LEVELS_PER_MISSION][FILENAME_LEN];
63 //values for d1 built-in mission
64 #define BIM_LAST_LEVEL 27
65 #define BIM_LAST_SECRET_LEVEL -3
66 #define BIM_BRIEFING_FILE "briefing.tex"
67 #define BIM_ENDING_FILE "endreg.tex"
70 // Special versions of mission routines for d1 builtins
73 int load_mission_d1(int mission_num)
77 cfile_use_descent1_hogfile("descent.hog");
79 Current_mission_num = mission_num;
80 Current_mission_filename = Mission_list[mission_num].filename;
81 Current_mission_longname = Mission_list[mission_num].mission_name;
83 switch (D1_Builtin_mission_hogsize) {
84 case D1_SHAREWARE_MISSION_HOGSIZE:
85 case D1_SHAREWARE_10_MISSION_HOGSIZE:
89 Last_secret_level = 0;
92 for (i=0;i<Last_level;i++)
93 sprintf(Level_names[i], "level%02d.sdl", i+1);
96 case D1_MAC_SHARE_MISSION_HOGSIZE:
100 Last_secret_level = 0;
103 for (i=0;i<Last_level;i++)
104 sprintf(Level_names[i], "level%02d.sdl", i+1);
107 case D1_OEM_MISSION_HOGSIZE:
108 case D1_OEM_10_MISSION_HOGSIZE:
112 Last_secret_level = -1;
115 for (i=0; i < Last_level - 1; i++)
116 sprintf(Level_names[i], "level%02d.rdl", i+1);
117 sprintf(Level_names[i], "saturn%02d.rdl", i+1);
118 for (i=0; i < -Last_secret_level; i++)
119 sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
121 Secret_level_table[0] = 10;
125 Int3(); // fall through
126 case D1_MISSION_HOGSIZE:
127 case D1_10_MISSION_HOGSIZE:
128 case D1_MAC_MISSION_HOGSIZE:
131 Last_level = BIM_LAST_LEVEL;
132 Last_secret_level = BIM_LAST_SECRET_LEVEL;
135 for (i=0;i<Last_level;i++)
136 sprintf(Level_names[i], "level%02d.rdl", i+1);
137 for (i=0;i<-Last_secret_level;i++)
138 sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
140 Secret_level_table[0] = 10;
141 Secret_level_table[1] = 21;
142 Secret_level_table[2] = 24;
146 strcpy(Briefing_text_filename,BIM_BRIEFING_FILE);
147 strcpy(Ending_text_filename,BIM_ENDING_FILE);
154 // Special versions of mission routines for shareware
157 int load_mission_shareware(int mission_num)
159 Current_mission_num = mission_num;
160 Current_mission_filename = Mission_list[mission_num].filename;
161 Current_mission_longname = Mission_list[mission_num].mission_name;
163 switch (Builtin_mission_hogsize) {
164 case MAC_SHARE_MISSION_HOGSIZE:
168 Last_secret_level = -1;
170 // mac demo is using the regular hog and rl2 files
171 strcpy(Level_names[0],"d2leva-1.rl2");
172 strcpy(Level_names[1],"d2leva-2.rl2");
173 strcpy(Level_names[2],"d2leva-3.rl2");
174 strcpy(Level_names[3],"d2leva-4.rl2");
175 strcpy(Secret_level_names[0],"d2leva-s.rl2");
178 Int3(); // fall through
179 case SHAREWARE_MISSION_HOGSIZE:
183 Last_secret_level = 0;
185 strcpy(Level_names[0],"d2leva-1.sl2");
186 strcpy(Level_names[1],"d2leva-2.sl2");
187 strcpy(Level_names[2],"d2leva-3.sl2");
195 // Special versions of mission routines for Diamond/S3 version
198 int load_mission_oem(int mission_num)
200 Current_mission_num = mission_num;
201 Current_mission_filename = Mission_list[mission_num].filename;
202 Current_mission_longname = Mission_list[mission_num].mission_name;
207 Last_secret_level = -2;
209 strcpy(Level_names[0],"d2leva-1.rl2");
210 strcpy(Level_names[1],"d2leva-2.rl2");
211 strcpy(Level_names[2],"d2leva-3.rl2");
212 strcpy(Level_names[3],"d2leva-4.rl2");
214 strcpy(Secret_level_names[0],"d2leva-s.rl2");
216 strcpy(Level_names[4],"d2levb-1.rl2");
217 strcpy(Level_names[5],"d2levb-2.rl2");
218 strcpy(Level_names[6],"d2levb-3.rl2");
219 strcpy(Level_names[7],"d2levb-4.rl2");
221 strcpy(Secret_level_names[1],"d2levb-s.rl2");
223 Secret_level_table[0] = 1;
224 Secret_level_table[1] = 5;
230 //compare a string for a token. returns true if match
231 int istok(char *buf,char *tok)
233 return strnicmp(buf,tok,strlen(tok)) == 0;
237 //adds a terminating 0 after a string at the first white space
238 void add_term(char *s)
240 while (*s && !isspace(*s)) s++;
245 //returns ptr to string after '=' & white space, or NULL if no '='
246 //adds 0 after parm at first white space
247 char *get_value(char *buf)
251 t = strchr(buf,'=')+1;
254 while (*t && isspace(*t)) t++;
260 return NULL; //error!
263 //reads a line, returns ptr to value of passed parm. returns NULL if none
264 char *get_parm_value(char *parm,CFILE *f)
268 if (!cfgets(buf,80,f))
272 return get_value(buf);
277 int ml_sort_func(mle *e0,mle *e1)
279 return stricmp(e0->mission_name,e1->mission_name);
283 extern char CDROM_dir[];
285 //returns 1 if file read ok, else 0
286 int read_mission_file(char *filename,int count,int location)
291 //printf("reading: %s\n", filename);
295 strcpy(filename2,MISSION_DIR);
299 songs_stop_redbook(); //so we can read from the CD
300 strcpy(filename2,CDROM_dir);
304 Int3(); //fall through
307 strcpy(filename2,"");
310 strcat(filename2,filename);
312 mfile = cfopen(filename2,"rb");
316 char temp[FILENAME_LEN],*t;
318 strcpy(temp,filename);
319 if ((t = strchr(temp,'.')) == NULL)
320 return 0; //missing extension
321 // look if it's .mn2 or .msn
322 Mission_list[count].descent_version = (t[3] == '2') ? 2 : 1;
323 *t = 0; //kill extension
325 strncpy( Mission_list[count].filename, temp, 9 );
326 Mission_list[count].anarchy_only_flag = 0;
327 Mission_list[count].location = location;
329 p = get_parm_value("name",mfile);
331 if (!p) { //try enhanced mission
332 cfseek(mfile,0,SEEK_SET);
333 p = get_parm_value("xname",mfile);
336 if (!p) { //try super-enhanced mission!
337 cfseek(mfile,0,SEEK_SET);
338 p = get_parm_value("zname",mfile);
343 if ((t=strchr(p,';'))!=NULL)
346 while (isspace(*t)) t--;
347 strncpy(Mission_list[count].mission_name,p,MISSION_NAME_LEN);
354 p = get_parm_value("type",mfile);
358 Mission_list[count].anarchy_only_flag = istok(p,"anarchy");
368 void add_d1_builtin_mission_to_list(int *count)
370 if (!cfexist("descent.hog"))
373 D1_Builtin_mission_hogsize = cfile_size("descent.hog");
375 switch (D1_Builtin_mission_hogsize) {
376 case D1_SHAREWARE_MISSION_HOGSIZE:
377 case D1_SHAREWARE_10_MISSION_HOGSIZE:
378 case D1_MAC_SHARE_MISSION_HOGSIZE:
379 strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
380 strcpy(Mission_list[*count].mission_name, D1_SHAREWARE_MISSION_NAME);
381 Mission_list[*count].anarchy_only_flag = 0;
383 case D1_OEM_MISSION_HOGSIZE:
384 case D1_OEM_10_MISSION_HOGSIZE:
385 strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
386 strcpy(Mission_list[*count].mission_name, D1_OEM_MISSION_NAME);
387 Mission_list[*count].anarchy_only_flag = 0;
390 Warning("Unknown D1 hogsize %d\n", D1_Builtin_mission_hogsize);
393 case D1_MISSION_HOGSIZE:
394 case D1_10_MISSION_HOGSIZE:
395 case D1_MAC_MISSION_HOGSIZE:
396 strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
397 strcpy(Mission_list[*count].mission_name, D1_MISSION_NAME);
398 Mission_list[*count].anarchy_only_flag = 0;
402 strcpy(D1_Builtin_mission_filename, Mission_list[*count].filename);
403 Mission_list[*count].descent_version = 1;
404 Mission_list[*count].anarchy_only_flag = 0;
409 void add_builtin_mission_to_list(int *count)
411 Builtin_mission_hogsize = cfile_size("descent2.hog");
412 if (Builtin_mission_hogsize == -1)
413 Builtin_mission_hogsize = cfile_size("d2demo.hog");
415 switch (Builtin_mission_hogsize) {
416 case SHAREWARE_MISSION_HOGSIZE:
417 case MAC_SHARE_MISSION_HOGSIZE:
418 strcpy(Mission_list[*count].filename,SHAREWARE_MISSION_FILENAME);
419 strcpy(Mission_list[*count].mission_name,SHAREWARE_MISSION_NAME);
420 Mission_list[*count].anarchy_only_flag = 0;
422 case OEM_MISSION_HOGSIZE:
423 strcpy(Mission_list[*count].filename,OEM_MISSION_FILENAME);
424 strcpy(Mission_list[*count].mission_name,OEM_MISSION_NAME);
425 Mission_list[*count].anarchy_only_flag = 0;
428 Warning("Unknown hogsize %d, trying %s\n", Builtin_mission_hogsize, FULL_MISSION_FILENAME ".mn2");
429 Int3(); //fall through
430 case FULL_MISSION_HOGSIZE:
431 case FULL_10_MISSION_HOGSIZE:
432 case MAC_FULL_MISSION_HOGSIZE:
433 if (!read_mission_file(FULL_MISSION_FILENAME ".mn2", 0, ML_CURDIR))
434 Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
437 strcpy(Builtin_mission_filename, Mission_list[*count].filename);
438 Mission_list[*count].descent_version = 2;
439 Mission_list[*count].anarchy_only_flag = 0;
444 void add_missions_to_list(char *search_name, int *count, int anarchy_mode)
447 if( !FileFindFirst( search_name, &find ) ) {
449 if (read_mission_file( find.name, *count, ML_MISSIONDIR )) {
451 if (anarchy_mode || !Mission_list[*count].anarchy_only_flag)
455 } while( !FileFindNext( &find ) && *count < MAX_MISSIONS);
457 if (*count >= MAX_MISSIONS)
458 mprintf((0, "Warning: more missions than d2x can handle\n"));
462 /* move <mission_name> to <place> on mission list, increment <place> */
463 void promote (char * mission_name, int * top_place, int num_missions)
466 char name[FILENAME_LEN], * t;
467 strcpy(name, mission_name);
468 if ((t = strchr(name,'.')) != NULL)
469 *t = 0; //kill extension
470 //printf("promoting: %s\n", name);
471 for (i = *top_place; i < num_missions; i++)
472 if (!stricmp(Mission_list[i].filename, name)) {
473 //swap mission positions
476 temp = Mission_list[*top_place];
477 Mission_list[*top_place] = Mission_list[i];
478 Mission_list[i] = temp;
486 //fills in the global list of missions. Returns the number of missions
487 //in the list. If anarchy_mode set, don't include non-anarchy levels.
489 extern char CDROM_dir[];
490 extern char AltHogDir[];
491 extern char AltHogdir_initialized;
493 int build_mission_list(int anarchy_mode)
495 static int num_missions=-1;
499 //now search for levels on disk
501 //@@Took out this code because after this routine was called once for
502 //@@a list of single-player missions, a subsequent call for a list of
503 //@@anarchy missions would not scan again, and thus would not find the
504 //@@anarchy-only missions. If we retain the minimum level of install,
505 //@@we may want to put the code back in, having it always scan for all
506 //@@missions, and have the code that uses it sort out the ones it wants.
507 //@@ if (num_missions != -1) {
508 //@@ if (Current_mission_num != 0)
509 //@@ load_mission(0); //set built-in mission as default
510 //@@ return num_missions;
513 add_builtin_mission_to_list(&count); //read built-in first
514 add_d1_builtin_mission_to_list(&count);
515 add_missions_to_list(MISSION_DIR "*.mn2", &count, anarchy_mode);
516 add_missions_to_list(MISSION_DIR "*.msn", &count, anarchy_mode);
518 if (AltHogdir_initialized) {
519 char search_name[PATH_MAX + 5];
520 strcpy(search_name, AltHogDir);
521 strcat(search_name, "/" MISSION_DIR "*.mn2");
522 add_missions_to_list(search_name, &count, anarchy_mode);
523 strcpy(search_name, AltHogDir);
524 strcat(search_name, "/" MISSION_DIR "*.msn");
525 add_missions_to_list(search_name, &count, anarchy_mode);
528 // move original missions (in story-chronological order)
529 // to top of mission list
531 promote("descent", &top_place, count); // original descent 1 mission
532 D1_Builtin_mission_num = top_place - 1;
533 promote(Builtin_mission_filename, &top_place, count); // d2 or d2demo
534 Builtin_mission_num = top_place - 1;
535 promote("d2x", &top_place, count); // vertigo
537 if (count > top_place)
538 qsort(&Mission_list[top_place],
540 sizeof(*Mission_list),
541 (int (*)( const void *, const void * ))ml_sort_func);
544 if (count > top_place)
545 qsort(&Mission_list[top_place],
547 sizeof(*Mission_list),
548 (int (*)( const void *, const void * ))ml_sort_func);
550 //load_mission(0); //set built-in mission as default
552 num_missions = count;
557 void init_extra_robot_movie(char *filename);
559 //values for built-in mission
561 //loads the specfied mission from the mission list.
562 //build_mission_list() must have been called.
563 //Returns true if mission loaded ok, else false.
564 int load_mission(int mission_num)
569 int enhanced_mission = 0;
571 if (mission_num == D1_Builtin_mission_num) {
572 cfile_use_descent1_hogfile("descent.hog");
573 switch (D1_Builtin_mission_hogsize) {
575 Int3(); // fall through
576 case D1_MISSION_HOGSIZE:
577 case D1_10_MISSION_HOGSIZE:
578 case D1_MAC_MISSION_HOGSIZE:
579 case D1_OEM_MISSION_HOGSIZE:
580 case D1_OEM_10_MISSION_HOGSIZE:
581 case D1_SHAREWARE_MISSION_HOGSIZE:
582 case D1_SHAREWARE_10_MISSION_HOGSIZE:
583 case D1_MAC_SHARE_MISSION_HOGSIZE:
584 return load_mission_d1(mission_num);
589 if (mission_num == Builtin_mission_num) {
590 switch (Builtin_mission_hogsize) {
591 case SHAREWARE_MISSION_HOGSIZE:
592 case MAC_SHARE_MISSION_HOGSIZE:
593 return load_mission_shareware(mission_num);
595 case OEM_MISSION_HOGSIZE:
596 return load_mission_oem(mission_num);
599 Int3(); // fall through
600 case FULL_MISSION_HOGSIZE:
601 case FULL_10_MISSION_HOGSIZE:
602 case MAC_FULL_MISSION_HOGSIZE:
603 // continue on... (use d2.mn2 from hogfile)
608 Current_mission_num = mission_num;
610 mprintf(( 0, "Loading mission %d\n", mission_num ));
612 //read mission from file
614 switch (Mission_list[mission_num].location) {
616 strcpy(buf,MISSION_DIR);
619 strcpy(buf,CDROM_dir);
622 Int3(); //fall through
627 strcat(buf,Mission_list[mission_num].filename);
628 if (Mission_list[mission_num].descent_version == 2)
633 mfile = cfopen(buf,"rb");
635 Current_mission_num = -1;
639 //for non-builtin missions, load HOG
640 if (strcmp(Mission_list[mission_num].filename, Builtin_mission_filename)) {
642 strcpy(buf+strlen(buf)-4,".hog"); //change extension
644 found_hogfile = cfile_use_alternate_hogfile(buf);
646 #ifdef RELEASE //for release, require mission to be in hogfile
647 if (! found_hogfile) {
649 Current_mission_num = -1;
654 // for Descent 1 missions, load descent.hog
655 if (Mission_list[mission_num].descent_version == 1 && strcmp(buf, "descent.hog"))
656 if (!cfile_use_descent1_hogfile("descent.hog"))
657 Warning("descent.hog not available, this mission may be missing some files required for briefings and exit sequence\n");
662 Last_secret_level = 0;
663 Briefing_text_filename[0] = 0;
664 Ending_text_filename[0] = 0;
666 while (cfgets(buf,80,mfile)) {
668 if (istok(buf,"name"))
669 continue; //already have name, go to next line
670 if (istok(buf,"xname")) {
671 enhanced_mission = 1;
672 continue; //already have name, go to next line
674 if (istok(buf,"zname")) {
675 enhanced_mission = 2;
676 continue; //already have name, go to next line
678 else if (istok(buf,"type"))
679 continue; //already have name, go to next line
680 else if (istok(buf,"hog")) {
683 while (*(bufp++) != '=')
687 while (*(++bufp) == ' ')
690 cfile_use_alternate_hogfile(bufp);
691 mprintf((0, "Hog file override = [%s]\n", bufp));
693 else if (istok(buf,"briefing")) {
694 if ((v = get_value(buf)) != NULL) {
697 strcpy(Briefing_text_filename,v);
700 else if (istok(buf,"ending")) {
701 if ((v = get_value(buf)) != NULL) {
704 strcpy(Ending_text_filename,v);
707 else if (istok(buf,"num_levels")) {
709 if ((v=get_value(buf))!=NULL) {
714 for (i=0;i<n_levels && cfgets(buf,80,mfile);i++) {
717 if (strlen(buf) <= 12) {
718 strcpy(Level_names[i],buf);
727 else if (istok(buf,"num_secrets")) {
728 if ((v=get_value(buf))!=NULL) {
731 N_secret_levels = atoi(v);
733 Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
735 for (i=0;i<N_secret_levels && cfgets(buf,80,mfile);i++) {
739 if ((t=strchr(buf,','))!=NULL) *t++=0;
744 if (strlen(buf) <= 12) {
745 strcpy(Secret_level_names[i],buf);
746 Secret_level_table[i] = atoi(t);
747 if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
762 if (Last_level <= 0) {
763 Current_mission_num = -1; //no valid mission loaded
767 Current_mission_filename = Mission_list[Current_mission_num].filename;
768 Current_mission_longname = Mission_list[Current_mission_num].mission_name;
770 if (enhanced_mission) {
772 extern void bm_read_extra_robots();
773 sprintf(t,"%s.ham",Current_mission_filename);
774 bm_read_extra_robots(t,enhanced_mission);
775 strncpy(t,Current_mission_filename,6);
777 init_extra_robot_movie(t);
783 //loads the named mission if exists.
784 //Returns true if mission loaded ok, else false.
785 int load_mission_by_name(char *mission_name)
789 n = build_mission_list(1);
792 if (!stricmp(mission_name,Mission_list[i].filename))
793 return load_mission(i);
795 return 0; //couldn't find mission