1 /* $Id: mission.c,v 1.42 2005-02-25 12:46:24 chris 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
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.
17 * Code to handle multiple missions
46 #include "ignorecase.h"
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"
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 char *path; // relative file path
62 int location; // see defines below
65 //values that describe where a mission is located
67 #define ML_MISSIONDIR 1
70 int num_missions = -1;
72 Mission *Current_mission = NULL; // currently loaded mission
75 // Special versions of mission routines for d1 builtins
78 int load_mission_d1(void)
82 switch (cfile_size("descent.hog")) {
83 case D1_SHAREWARE_MISSION_HOGSIZE:
84 case D1_SHAREWARE_10_MISSION_HOGSIZE:
88 Last_secret_level = 0;
91 for (i=0;i<Last_level;i++)
92 sprintf(Level_names[i], "level%02d.sdl", i+1);
95 case D1_MAC_SHARE_MISSION_HOGSIZE:
99 Last_secret_level = 0;
102 for (i=0;i<Last_level;i++)
103 sprintf(Level_names[i], "level%02d.sdl", i+1);
106 case D1_OEM_MISSION_HOGSIZE:
107 case D1_OEM_10_MISSION_HOGSIZE:
111 Last_secret_level = -1;
114 for (i=0; i < Last_level - 1; i++)
115 sprintf(Level_names[i], "level%02d.rdl", i+1);
116 sprintf(Level_names[i], "saturn%02d.rdl", i+1);
117 for (i=0; i < -Last_secret_level; i++)
118 sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
120 Secret_level_table[0] = 10;
124 Int3(); // fall through
125 case D1_MISSION_HOGSIZE:
126 case D1_10_MISSION_HOGSIZE:
127 case D1_MAC_MISSION_HOGSIZE:
130 Last_level = BIM_LAST_LEVEL;
131 Last_secret_level = BIM_LAST_SECRET_LEVEL;
134 for (i=0;i<Last_level;i++)
135 sprintf(Level_names[i], "level%02d.rdl", i+1);
136 for (i=0;i<-Last_secret_level;i++)
137 sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
139 Secret_level_table[0] = 10;
140 Secret_level_table[1] = 21;
141 Secret_level_table[2] = 24;
145 strcpy(Briefing_text_filename,BIM_BRIEFING_FILE);
146 strcpy(Ending_text_filename,BIM_ENDING_FILE);
153 // Special versions of mission routines for shareware
156 int load_mission_shareware(void)
158 strcpy(Current_mission->mission_name, SHAREWARE_MISSION_NAME);
159 Current_mission->descent_version = 2;
160 Current_mission->anarchy_only_flag = 0;
162 switch (Current_mission->builtin_hogsize) {
163 case MAC_SHARE_MISSION_HOGSIZE:
167 Last_secret_level = -1;
169 // mac demo is using the regular hog and rl2 files
170 strcpy(Level_names[0],"d2leva-1.rl2");
171 strcpy(Level_names[1],"d2leva-2.rl2");
172 strcpy(Level_names[2],"d2leva-3.rl2");
173 strcpy(Level_names[3],"d2leva-4.rl2");
174 strcpy(Secret_level_names[0],"d2leva-s.rl2");
177 Int3(); // fall through
178 case SHAREWARE_MISSION_HOGSIZE:
182 Last_secret_level = 0;
184 strcpy(Level_names[0],"d2leva-1.sl2");
185 strcpy(Level_names[1],"d2leva-2.sl2");
186 strcpy(Level_names[2],"d2leva-3.sl2");
194 // Special versions of mission routines for Diamond/S3 version
197 int load_mission_oem(void)
199 strcpy(Current_mission->mission_name, OEM_MISSION_NAME);
200 Current_mission->descent_version = 2;
201 Current_mission->anarchy_only_flag = 0;
206 Last_secret_level = -2;
208 strcpy(Level_names[0],"d2leva-1.rl2");
209 strcpy(Level_names[1],"d2leva-2.rl2");
210 strcpy(Level_names[2],"d2leva-3.rl2");
211 strcpy(Level_names[3],"d2leva-4.rl2");
213 strcpy(Secret_level_names[0],"d2leva-s.rl2");
215 strcpy(Level_names[4],"d2levb-1.rl2");
216 strcpy(Level_names[5],"d2levb-2.rl2");
217 strcpy(Level_names[6],"d2levb-3.rl2");
218 strcpy(Level_names[7],"d2levb-4.rl2");
220 strcpy(Secret_level_names[1],"d2levb-s.rl2");
222 Secret_level_table[0] = 1;
223 Secret_level_table[1] = 5;
229 //compare a string for a token. returns true if match
230 int istok(char *buf,char *tok)
232 return strnicmp(buf,tok,strlen(tok)) == 0;
236 //adds a terminating 0 after a string at the first white space
237 void add_term(char *s)
239 while (*s && !isspace(*s)) s++;
244 //returns ptr to string after '=' & white space, or NULL if no '='
245 //adds 0 after parm at first white space
246 char *get_value(char *buf)
250 t = strchr(buf,'=')+1;
253 while (*t && isspace(*t)) t++;
259 return NULL; //error!
262 //reads a line, returns ptr to value of passed parm. returns NULL if none
263 char *get_parm_value(char *parm,CFILE *f)
267 if (!cfgets(buf,80,f))
271 return get_value(buf);
276 int ml_sort_func(mle *e0,mle *e1)
278 return stricmp(e0->mission_name,e1->mission_name);
282 extern char CDROM_dir[];
284 //returns 1 if file read ok, else 0
285 int read_mission_file(mle *mission, char *filename, int location)
290 //printf("reading: %s\n", filename);
294 strcpy(filename2,MISSION_DIR);
298 songs_stop_redbook(); //so we can read from the CD
299 strcpy(filename2,CDROM_dir);
303 Int3(); //fall through
306 strcpy(filename2,"");
309 strcat(filename2,filename);
311 mfile = cfopen(filename2,"rb");
315 char temp[PATH_MAX], *ext;
317 strcpy(temp,filename);
318 p = strrchr(temp, '/'); // get the filename at the end of the path
323 if ((ext = strchr(p, '.')) == NULL)
324 return 0; //missing extension
325 // look if it's .mn2 or .msn
326 mission->descent_version = (ext[3] == '2') ? 2 : 1;
327 *ext = 0; //kill extension
329 mission->path = d_strdup(temp);
330 mission->anarchy_only_flag = 0;
331 mission->filename = mission->path + (p - temp);
332 mission->location = location;
334 p = get_parm_value("name",mfile);
336 if (!p) { //try enhanced mission
337 cfseek(mfile,0,SEEK_SET);
338 p = get_parm_value("xname",mfile);
341 if (!p) { //try super-enhanced mission!
342 cfseek(mfile,0,SEEK_SET);
343 p = get_parm_value("zname",mfile);
348 if ((t=strchr(p,';'))!=NULL)
352 *t-- = 0; // remove trailing whitespace
353 if (strlen(p) > MISSION_NAME_LEN)
354 p[MISSION_NAME_LEN] = 0;
355 strncpy(mission->mission_name, p, MISSION_NAME_LEN + 1);
359 d_free(mission->path);
363 p = get_parm_value("type",mfile);
367 mission->anarchy_only_flag = istok(p,"anarchy");
377 void add_d1_builtin_mission_to_list(mle *mission)
381 if (!cfexist("descent.hog"))
384 size = cfile_size("descent.hog");
387 case D1_SHAREWARE_MISSION_HOGSIZE:
388 case D1_SHAREWARE_10_MISSION_HOGSIZE:
389 case D1_MAC_SHARE_MISSION_HOGSIZE:
390 mission->filename = d_strdup(D1_MISSION_FILENAME);
391 strcpy(mission->mission_name, D1_SHAREWARE_MISSION_NAME);
392 mission->anarchy_only_flag = 0;
394 case D1_OEM_MISSION_HOGSIZE:
395 case D1_OEM_10_MISSION_HOGSIZE:
396 mission->filename = d_strdup(D1_MISSION_FILENAME);
397 strcpy(mission->mission_name, D1_OEM_MISSION_NAME);
398 mission->anarchy_only_flag = 0;
401 Warning("Unknown D1 hogsize %d\n", size);
404 case D1_MISSION_HOGSIZE:
405 case D1_10_MISSION_HOGSIZE:
406 case D1_MAC_MISSION_HOGSIZE:
407 mission->filename = d_strdup(D1_MISSION_FILENAME);
408 strcpy(mission->mission_name, D1_MISSION_NAME);
409 mission->anarchy_only_flag = 0;
413 mission->descent_version = 1;
414 mission->anarchy_only_flag = 0;
415 mission->builtin_hogsize = 0;
416 mission->path = mission->filename;
421 void add_builtin_mission_to_list(mle *mission, char *name)
423 int size = cfile_size("descent2.hog");
426 size = cfile_size("d2demo.hog");
429 case SHAREWARE_MISSION_HOGSIZE:
430 case MAC_SHARE_MISSION_HOGSIZE:
431 mission->filename = d_strdup(SHAREWARE_MISSION_FILENAME);
432 strcpy(mission->mission_name,SHAREWARE_MISSION_NAME);
433 mission->anarchy_only_flag = 0;
435 case OEM_MISSION_HOGSIZE:
436 mission->filename = d_strdup(OEM_MISSION_FILENAME);
437 strcpy(mission->mission_name,OEM_MISSION_NAME);
438 mission->anarchy_only_flag = 0;
441 Warning("Unknown hogsize %d, trying %s\n", size, FULL_MISSION_FILENAME ".mn2");
442 Int3(); //fall through
443 case FULL_MISSION_HOGSIZE:
444 case FULL_10_MISSION_HOGSIZE:
445 case MAC_FULL_MISSION_HOGSIZE:
446 if (!read_mission_file(mission, FULL_MISSION_FILENAME ".mn2", ML_CURDIR))
447 Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
450 strcpy(name, mission->filename);
451 mission->builtin_hogsize = size;
452 mission->descent_version = 2;
453 mission->anarchy_only_flag = 0;
458 void add_missions_to_list(mle *mission_list, char *path, char *rel_path, int anarchy_mode)
460 char **find, **i, *ext;
462 find = PHYSFS_enumerateFiles(path);
464 for (i = find; *i != NULL; i++)
466 if (strlen(path) + strlen(*i) + 1 >= PATH_MAX)
467 continue; // path is too long
469 strcat(rel_path, *i);
470 if (PHYSFS_isDirectory(path))
472 strcat(rel_path, "/");
473 add_missions_to_list(mission_list, path, rel_path, anarchy_mode);
474 *(strrchr(path, '/')) = 0;
476 else if ((ext = strrchr(*i, '.')) && (!strnicmp(ext, ".msn", 4) || !strnicmp(ext, ".mn2", 4)))
477 if (read_mission_file(&mission_list[num_missions], rel_path, ML_MISSIONDIR))
479 if (anarchy_mode || !mission_list[num_missions].anarchy_only_flag)
481 mission_list[num_missions].builtin_hogsize = 0;
485 d_free(mission_list[num_missions].path);
488 if (num_missions >= MAX_MISSIONS)
490 mprintf((0, "Warning: more missions than d2x can handle\n"));
494 (strrchr(path, '/'))[1] = 0; // chop off the entry
497 PHYSFS_freeList(find);
500 /* move <mission_name> to <place> on mission list, increment <place> */
501 void promote (mle *mission_list, char * mission_name, int * top_place)
504 char name[FILENAME_LEN], * t;
505 strcpy(name, mission_name);
506 if ((t = strchr(name,'.')) != NULL)
507 *t = 0; //kill extension
508 //printf("promoting: %s\n", name);
509 for (i = *top_place; i < num_missions; i++)
510 if (!stricmp(mission_list[i].filename, name)) {
511 //swap mission positions
514 temp = mission_list[*top_place];
515 mission_list[*top_place] = mission_list[i];
516 mission_list[i] = temp;
522 void free_mission(void)
524 // May become more complex with the editor
525 if (Current_mission) {
526 d_free(Current_mission->filename);
527 d_free(Current_mission);
533 //fills in the global list of missions. Returns the number of missions
534 //in the list. If anarchy_mode is set, then also add anarchy-only missions.
536 extern char CDROM_dir[];
538 extern char AltHogDir[];
539 extern char AltHogdir_initialized;
542 mle *build_mission_list(int anarchy_mode)
546 char builtin_mission_filename[FILENAME_LEN];
547 char search_str[PATH_MAX] = MISSION_DIR;
549 //now search for levels on disk
551 //@@Took out this code because after this routine was called once for
552 //@@a list of single-player missions, a subsequent call for a list of
553 //@@anarchy missions would not scan again, and thus would not find the
554 //@@anarchy-only missions. If we retain the minimum level of install,
555 //@@we may want to put the code back in, having it always scan for all
556 //@@missions, and have the code that uses it sort out the ones it wants.
557 //@@ if (num_missions != -1) {
558 //@@ if (Current_mission_num != 0)
559 //@@ load_mission(0); //set built-in mission as default
560 //@@ return num_missions;
563 MALLOC(mission_list, mle, MAX_MISSIONS);
566 add_builtin_mission_to_list(mission_list + num_missions, builtin_mission_filename); //read built-in first
567 add_d1_builtin_mission_to_list(mission_list + num_missions);
568 add_missions_to_list(mission_list, search_str, search_str + strlen(search_str), anarchy_mode);
570 // move original missions (in story-chronological order)
571 // to top of mission list
573 promote(mission_list, "descent", &top_place); // original descent 1 mission
574 promote(mission_list, builtin_mission_filename, &top_place); // d2 or d2demo
575 promote(mission_list, "d2x", &top_place); // vertigo
577 if (num_missions > top_place)
578 qsort(&mission_list[top_place],
579 num_missions - top_place,
580 sizeof(*mission_list),
581 (int (*)( const void *, const void * ))ml_sort_func);
584 if (num_missions > top_place)
585 qsort(&mission_list[top_place],
586 num_missions - top_place,
587 sizeof(*mission_list),
588 (int (*)( const void *, const void * ))ml_sort_func);
590 //load_mission(0); //set built-in mission as default
592 atexit(free_mission);
597 void free_mission_list(mle *mission_list)
601 for (i = 0; i < num_missions; i++)
602 d_free(mission_list[i].path);
604 d_free(mission_list);
608 void init_extra_robot_movie(char *filename);
610 //values for built-in mission
612 //loads the specfied mission from the mission list.
613 //build_mission_list() must have been called.
614 //Returns true if mission loaded ok, else false.
615 int load_mission(mle *mission)
618 char buf[PATH_MAX], *v;
623 Current_mission = d_malloc(sizeof(Mission));
624 if (!Current_mission) return 0;
625 *(mle *) Current_mission = *mission;
626 Current_mission->filename = d_strdup(mission->filename); // don't want to lose it
628 // for Descent 1 missions, load descent.hog
630 if (!cfile_init("descent.hog"))
631 Warning("descent.hog not available, this mission may be missing some files required for briefings and exit sequence\n");
632 if (!stricmp(Current_mission_filename, D1_MISSION_FILENAME))
633 return load_mission_d1();
636 if (PLAYING_BUILTIN_MISSION) {
637 switch (Current_mission->builtin_hogsize) {
638 case SHAREWARE_MISSION_HOGSIZE:
639 case MAC_SHARE_MISSION_HOGSIZE:
640 return load_mission_shareware();
642 case OEM_MISSION_HOGSIZE:
643 return load_mission_oem();
646 Int3(); // fall through
647 case FULL_MISSION_HOGSIZE:
648 case FULL_10_MISSION_HOGSIZE:
649 case MAC_FULL_MISSION_HOGSIZE:
650 // continue on... (use d2.mn2 from hogfile)
655 mprintf(( 0, "Loading mission %s\n", Current_mission_filename ));
657 //read mission from file
659 switch (mission->location) {
661 strcpy(buf,MISSION_DIR);
664 strcpy(buf,CDROM_dir);
667 Int3(); //fall through
672 strcat(buf, mission->path);
673 if (mission->descent_version == 2)
678 PHYSFSEXT_locateCorrectCase(buf);
680 mfile = cfopen(buf,"rb");
686 //for non-builtin missions, load HOG
687 if (!PLAYING_BUILTIN_MISSION) {
689 strcpy(buf+strlen(buf)-4,".hog"); //change extension
691 PHYSFSEXT_locateCorrectCase(buf);
693 found_hogfile = cfile_init(buf);
695 #ifdef RELEASE //for release, require mission to be in hogfile
696 if (! found_hogfile) {
706 Last_secret_level = 0;
707 Briefing_text_filename[0] = 0;
708 Ending_text_filename[0] = 0;
710 while (cfgets(buf,80,mfile)) {
712 if (istok(buf,"name")) {
713 Current_mission->enhanced = 0;
714 continue; //already have name, go to next line
716 if (istok(buf,"xname")) {
717 Current_mission->enhanced = 1;
718 continue; //already have name, go to next line
720 if (istok(buf,"zname")) {
721 Current_mission->enhanced = 2;
722 continue; //already have name, go to next line
724 else if (istok(buf,"type"))
725 continue; //already have name, go to next line
726 else if (istok(buf,"hog")) {
729 while (*(bufp++) != '=')
733 while (*(++bufp) == ' ')
737 mprintf((0, "Hog file override = [%s]\n", bufp));
739 else if (istok(buf,"briefing")) {
740 if ((v = get_value(buf)) != NULL) {
743 strcpy(Briefing_text_filename,v);
746 else if (istok(buf,"ending")) {
747 if ((v = get_value(buf)) != NULL) {
750 strcpy(Ending_text_filename,v);
753 else if (istok(buf,"num_levels")) {
755 if ((v=get_value(buf))!=NULL) {
760 for (i=0;i<n_levels && cfgets(buf,80,mfile);i++) {
763 if (strlen(buf) <= 12) {
764 strcpy(Level_names[i],buf);
773 else if (istok(buf,"num_secrets")) {
774 if ((v=get_value(buf))!=NULL) {
777 N_secret_levels = atoi(v);
779 Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
781 for (i=0;i<N_secret_levels && cfgets(buf,80,mfile);i++) {
785 if ((t=strchr(buf,','))!=NULL) *t++=0;
790 if (strlen(buf) <= 12) {
791 strcpy(Secret_level_names[i],buf);
792 Secret_level_table[i] = atoi(t);
793 if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
808 if (Last_level <= 0) {
809 free_mission(); //no valid mission loaded
813 if (Current_mission->enhanced) {
815 extern void bm_read_extra_robots();
816 sprintf(t,"%s.ham",Current_mission_filename);
817 bm_read_extra_robots(t, Current_mission->enhanced);
818 strncpy(t,Current_mission_filename,6);
819 init_extra_robot_movie(t);
825 //loads the named mission if exists.
826 //Returns true if mission loaded ok, else false.
827 int load_mission_by_name(char *mission_name)
830 mle *mission_list = build_mission_list(1);
833 for (i = 0; i < num_missions; i++)
834 if (!stricmp(mission_name, mission_list[i].filename))
835 found = load_mission(mission_list + i);
837 free_mission_list(mission_list);
841 int select_mission(int anarchy_mode, char *message)
843 mle *mission_list = build_mission_list(anarchy_mode);
846 if (num_missions <= 1) {
847 new_mission_num = load_mission(mission_list) ? 0 : -1;
849 int i, default_mission;
850 char * m[MAX_MISSIONS];
853 for (i = 0; i < num_missions; i++) {
854 m[i] = mission_list[i].mission_name;
855 if ( !stricmp( m[i], config_last_mission ) )
859 new_mission_num = newmenu_listbox1( message, num_missions, m, 1, default_mission, NULL );
861 if (new_mission_num >= 0) {
863 strcpy(config_last_mission, m[new_mission_num] );
865 if (!load_mission(mission_list + new_mission_num)) {
866 nm_messagebox( NULL, 1, TXT_OK, TXT_MISSION_ERROR);
867 new_mission_num = -1;
872 free_mission_list(mission_list);
873 return (new_mission_num >= 0);