1 /* $Id: mission.c,v 1.16 2003-01-06 23:06:18 btb Exp $ */
3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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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"
137 mle Mission_list[MAX_MISSIONS];
139 int Current_mission_num, Builtin_mission_num;
140 int N_secret_levels; // Made a global by MK for scoring purposes. August 1, 1995.
141 char *Current_mission_filename,*Current_mission_longname;
143 char Builtin_mission_filename[9];
144 int Builtin_mission_hogsize;
146 //this stuff should get defined elsewhere
148 char Level_names[MAX_LEVELS_PER_MISSION][FILENAME_LEN];
149 char Secret_level_names[MAX_SECRET_LEVELS_PER_MISSION][FILENAME_LEN];
151 //where the missions go
153 #define MISSION_DIR "missions/"
155 #define MISSION_DIR "./"
159 // Special versions of mission routines for shareware
162 int load_mission_shareware(int mission_num)
164 Current_mission_num = mission_num;
165 Current_mission_filename = Mission_list[mission_num].filename;
166 Current_mission_longname = Mission_list[mission_num].mission_name;
171 Last_secret_level = 0;
173 switch (Builtin_mission_hogsize) {
174 case MAC_SHARE_MISSION_HOGSIZE:
175 // mac demo is using the regular hog and rl2 files
176 strcpy(Level_names[0],"d2leva-1.rl2");
177 strcpy(Level_names[1],"d2leva-2.rl2");
178 strcpy(Level_names[2],"d2leva-3.rl2");
181 Int3(); // fall through
182 case SHAREWARE_MISSION_HOGSIZE:
183 strcpy(Level_names[0],"d2leva-1.sl2");
184 strcpy(Level_names[1],"d2leva-2.sl2");
185 strcpy(Level_names[2],"d2leva-3.sl2");
193 // Special versions of mission routines for Diamond/S3 version
196 int load_mission_oem(int mission_num)
198 Current_mission_num = mission_num;
199 Current_mission_filename = Mission_list[mission_num].filename;
200 Current_mission_longname = Mission_list[mission_num].mission_name;
205 Last_secret_level = -2;
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");
212 strcpy(Secret_level_names[0],"d2leva-s.rl2");
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");
219 strcpy(Secret_level_names[1],"d2levb-s.rl2");
221 Secret_level_table[0] = 1;
222 Secret_level_table[1] = 5;
228 //strips damn newline from end of line
229 char *mfgets(char *s,int n,CFILE *f)
234 if (r && s[strlen(s)-1] == '\n')
240 //compare a string for a token. returns true if match
241 int istok(char *buf,char *tok)
243 return strnicmp(buf,tok,strlen(tok)) == 0;
247 //adds a terminating 0 after a string at the first white space
248 void add_term(char *s)
250 while (*s && !isspace(*s)) s++;
255 //returns ptr to string after '=' & white space, or NULL if no '='
256 //adds 0 after parm at first white space
257 char *get_value(char *buf)
261 t = strchr(buf,'=')+1;
264 while (*t && isspace(*t)) t++;
270 return NULL; //error!
273 //reads a line, returns ptr to value of passed parm. returns NULL if none
274 char *get_parm_value(char *parm,CFILE *f)
278 if (!mfgets(buf,80,f))
282 return get_value(buf);
287 int ml_sort_func(mle *e0,mle *e1)
289 return stricmp(e0->mission_name,e1->mission_name);
293 extern char CDROM_dir[];
295 //returns 1 if file read ok, else 0
296 int read_mission_file(char *filename,int count,int location)
301 //printf("reading: %s\n", filename);
305 strcpy(filename2,MISSION_DIR);
309 songs_stop_redbook(); //so we can read from the CD
310 strcpy(filename2,CDROM_dir);
314 Int3(); //fall through
317 strcpy(filename2,"");
320 strcat(filename2,filename);
322 mfile = cfopen(filename2,"rb");
326 char temp[FILENAME_LEN],*t;
328 strcpy(temp,filename);
329 if ((t = strchr(temp,'.')) == NULL)
330 return 0; //missing extension
331 // look if it's .mn2 or .msn
332 Mission_list[count].descent_version = (t[3] == '2') ? 2 : 1;
333 *t = 0; //kill extension
335 strncpy( Mission_list[count].filename, temp, 9 );
336 Mission_list[count].anarchy_only_flag = 0;
337 Mission_list[count].location = location;
339 p = get_parm_value("name",mfile);
341 if (!p) { //try enhanced mission
342 cfseek(mfile,0,SEEK_SET);
343 p = get_parm_value("xname",mfile);
348 if (!p) { //try super-enhanced mission!
349 cfseek(mfile,0,SEEK_SET);
350 p = get_parm_value("zname",mfile);
356 if ((t=strchr(p,';'))!=NULL)
359 while (isspace(*t)) t--;
360 strncpy(Mission_list[count].mission_name,p,MISSION_NAME_LEN);
367 p = get_parm_value("type",mfile);
371 Mission_list[count].anarchy_only_flag = istok(p,"anarchy");
381 void add_builtin_mission_to_list(int *count)
383 Builtin_mission_hogsize = cfile_size("descent2.hog");
384 if (Builtin_mission_hogsize == -1)
385 Builtin_mission_hogsize = cfile_size("d2demo.hog");
387 switch (Builtin_mission_hogsize) {
388 case SHAREWARE_MISSION_HOGSIZE:
389 case MAC_SHARE_MISSION_HOGSIZE:
390 strcpy(Mission_list[*count].filename,SHAREWARE_MISSION_FILENAME);
391 strcpy(Mission_list[*count].mission_name,SHAREWARE_MISSION_NAME);
392 Mission_list[*count].anarchy_only_flag = 0;
394 case OEM_MISSION_HOGSIZE:
395 strcpy(Mission_list[*count].filename,OEM_MISSION_FILENAME);
396 strcpy(Mission_list[*count].mission_name,OEM_MISSION_NAME);
397 Mission_list[*count].anarchy_only_flag = 0;
400 Warning("Unknown hogsize %d, trying %s\n", Builtin_mission_hogsize, FULL_MISSION_FILENAME ".mn2");
401 Int3(); //fall through
402 case FULL_MISSION_HOGSIZE:
403 if (!read_mission_file(FULL_MISSION_FILENAME ".mn2", 0, ML_CURDIR))
404 Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
407 strcpy(Builtin_mission_filename, Mission_list[*count].filename);
408 Mission_list[*count].descent_version = 2;
409 Mission_list[*count].anarchy_only_flag = 0;
414 void add_missions_to_list(char *search_name, int *count, int anarchy_mode)
417 if( !FileFindFirst( search_name, &find ) ) {
419 if (read_mission_file( find.name, *count, ML_MISSIONDIR )) {
421 if (anarchy_mode || !Mission_list[*count].anarchy_only_flag)
425 } while( !FileFindNext( &find ) && *count < MAX_MISSIONS);
427 if (*count >= MAX_MISSIONS)
428 mprintf((0, "Warning: more missions than d2x can handle\n"));
432 /* move <mission_name> to <place> on mission list, increment <place> */
433 void promote (char * mission_name, int * top_place, int num_missions)
436 char name[FILENAME_LEN], * t;
437 strcpy(name, mission_name);
438 if ((t = strchr(name,'.')) != NULL)
439 *t = 0; //kill extension
440 //printf("promoting: %s\n", name);
441 for (i = *top_place; i < num_missions; i++)
442 if (!stricmp(Mission_list[i].filename, name)) {
443 //swap mission positions
446 temp = Mission_list[*top_place];
447 Mission_list[*top_place] = Mission_list[i];
448 Mission_list[i] = temp;
456 //fills in the global list of missions. Returns the number of missions
457 //in the list. If anarchy_mode set, don't include non-anarchy levels.
459 extern char CDROM_dir[];
460 extern char AltHogDir[];
461 extern char AltHogdir_initialized;
463 int build_mission_list(int anarchy_mode)
465 static int num_missions=-1;
469 //now search for levels on disk
471 //@@Took out this code because after this routine was called once for
472 //@@a list of single-player missions, a subsequent call for a list of
473 //@@anarchy missions would not scan again, and thus would not find the
474 //@@anarchy-only missions. If we retain the minimum level of install,
475 //@@we may want to put the code back in, having it always scan for all
476 //@@missions, and have the code that uses it sort out the ones it wants.
477 //@@ if (num_missions != -1) {
478 //@@ if (Current_mission_num != 0)
479 //@@ load_mission(0); //set built-in mission as default
480 //@@ return num_missions;
483 add_builtin_mission_to_list(&count); //read built-in first
484 add_missions_to_list(MISSION_DIR "*.mn2", &count, anarchy_mode);
485 add_missions_to_list(MISSION_DIR "*.msn", &count, anarchy_mode);
487 if (AltHogdir_initialized) {
488 char search_name[PATH_MAX + 5];
489 strcpy(search_name, AltHogDir);
490 strcat(search_name, "/" MISSION_DIR "*.mn2");
491 add_missions_to_list(search_name, &count, anarchy_mode);
492 strcpy(search_name, AltHogDir);
493 strcat(search_name, "/" MISSION_DIR "*.msn");
494 add_missions_to_list(search_name, &count, anarchy_mode);
497 // move original missions (in story-chronological order)
498 // to top of mission list
500 promote("descent", &top_place, count); // original descent 1 mission
501 promote(Builtin_mission_filename, &top_place, count); // d2 or d2demo
502 Builtin_mission_num = top_place - 1;
503 promote("d2x", &top_place, count); // vertigo
505 if (count > top_place)
506 qsort(&Mission_list[top_place],
508 sizeof(*Mission_list),
509 (int (*)( const void *, const void * ))ml_sort_func);
512 if (count > top_place)
513 qsort(&Mission_list[top_place],
515 sizeof(*Mission_list),
516 (int (*)( const void *, const void * ))ml_sort_func);
518 //load_mission(0); //set built-in mission as default
520 num_missions = count;
525 void init_extra_robot_movie(char *filename);
527 //values for built-in mission
529 //loads the specfied mission from the mission list.
530 //build_mission_list() must have been called.
531 //Returns true if mission loaded ok, else false.
532 int load_mission(int mission_num)
537 int enhanced_mission = 0;
539 if (mission_num == Builtin_mission_num) {
540 switch (Builtin_mission_hogsize) {
541 case SHAREWARE_MISSION_HOGSIZE:
542 case MAC_SHARE_MISSION_HOGSIZE:
543 return load_mission_shareware(mission_num);
545 case OEM_MISSION_HOGSIZE:
546 return load_mission_oem(mission_num);
548 case FULL_MISSION_HOGSIZE:
554 Current_mission_num = mission_num;
556 mprintf(( 0, "Loading mission %d\n", mission_num ));
558 //read mission from file
560 switch (Mission_list[mission_num].location) {
562 strcpy(buf,MISSION_DIR);
565 strcpy(buf,CDROM_dir);
568 Int3(); //fall through
573 strcat(buf,Mission_list[mission_num].filename);
574 if (Mission_list[mission_num].descent_version == 2)
579 mfile = cfopen(buf,"rb");
581 Current_mission_num = -1;
585 //for non-builtin missions, load HOG
586 if (strcmp(Mission_list[mission_num].filename, Builtin_mission_filename)) {
588 strcpy(buf+strlen(buf)-4,".hog"); //change extension
590 found_hogfile = cfile_use_alternate_hogfile(buf);
592 #ifdef RELEASE //for release, require mission to be in hogfile
593 if (! found_hogfile) {
595 Current_mission_num = -1;
600 // for Descent 1 missions, load descent.hog
601 if (Mission_list[mission_num].descent_version == 1 && strcmp(buf, "descent.hog"))
602 if (!cfile_use_descent1_hogfile("descent.hog"))
603 Warning("descent.hog not available, this mission may be missing some files required for briefings\n");
608 Last_secret_level = 0;
609 Briefing_text_filename[0] = 0;
610 Ending_text_filename[0] = 0;
612 while (mfgets(buf,80,mfile)) {
614 if (istok(buf,"name"))
615 continue; //already have name, go to next line
616 if (istok(buf,"xname")) {
617 enhanced_mission = 1;
618 continue; //already have name, go to next line
620 if (istok(buf,"zname")) {
621 enhanced_mission = 2;
622 continue; //already have name, go to next line
624 else if (istok(buf,"type"))
625 continue; //already have name, go to next line
626 else if (istok(buf,"hog")) {
629 while (*(bufp++) != '=')
633 while (*(++bufp) == ' ')
636 cfile_use_alternate_hogfile(bufp);
637 mprintf((0, "Hog file override = [%s]\n", bufp));
639 else if (istok(buf,"briefing")) {
640 if ((v = get_value(buf)) != NULL) {
643 strcpy(Briefing_text_filename,v);
646 else if (istok(buf,"ending")) {
647 if ((v = get_value(buf)) != NULL) {
650 strcpy(Ending_text_filename,v);
653 else if (istok(buf,"num_levels")) {
655 if ((v=get_value(buf))!=NULL) {
660 for (i=0;i<n_levels && mfgets(buf,80,mfile);i++) {
663 if (strlen(buf) <= 12) {
664 strcpy(Level_names[i],buf);
673 else if (istok(buf,"num_secrets")) {
674 if ((v=get_value(buf))!=NULL) {
677 N_secret_levels = atoi(v);
679 Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
681 for (i=0;i<N_secret_levels && mfgets(buf,80,mfile);i++) {
685 if ((t=strchr(buf,','))!=NULL) *t++=0;
690 if (strlen(buf) <= 12) {
691 strcpy(Secret_level_names[i],buf);
692 Secret_level_table[i] = atoi(t);
693 if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
708 if (Last_level <= 0) {
709 Current_mission_num = -1; //no valid mission loaded
713 Current_mission_filename = Mission_list[Current_mission_num].filename;
714 Current_mission_longname = Mission_list[Current_mission_num].mission_name;
716 if (enhanced_mission) {
718 extern void bm_read_extra_robots();
719 sprintf(t,"%s.ham",Current_mission_filename);
720 bm_read_extra_robots(t,enhanced_mission);
721 strncpy(t,Current_mission_filename,6);
723 init_extra_robot_movie(t);
729 //loads the named mission if exists.
730 //Returns true if mission loaded ok, else false.
731 int load_mission_by_name(char *mission_name)
735 n = build_mission_list(1);
738 if (!stricmp(mission_name,Mission_list[i].filename))
739 return load_mission(i);
741 return 0; //couldn't find mission