1 /* $Id: mission.c,v 1.5 2002-08-06 05:12:09 btb Exp $ */
3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
17 * Stuff for loading missions
45 mle Mission_list[MAX_MISSIONS];
47 int Current_mission_num;
48 int N_secret_levels; // Made a global by MK for scoring purposes. August 1, 1995.
49 char *Current_mission_filename,*Current_mission_longname;
51 //this stuff should get defined elsewhere
53 char Level_names[MAX_LEVELS_PER_MISSION][FILENAME_LEN];
54 char Secret_level_names[MAX_SECRET_LEVELS_PER_MISSION][FILENAME_LEN];
56 //where the missions go
58 #define MISSION_DIR "missions/"
60 #define MISSION_DIR "./"
66 // Special versions of mission routines for shareware
69 #define SHAREWARE_MISSION_FILENAME "d2demo"
70 #define SHAREWARE_MISSION_NAME "Descent 2 Demo"
72 int build_mission_list(int anarchy_mode)
74 anarchy_mode++; //kill warning
76 strcpy(Mission_list[0].filename,SHAREWARE_MISSION_FILENAME);
77 strcpy(Mission_list[0].mission_name,SHAREWARE_MISSION_NAME);
78 Mission_list[0].anarchy_only_flag = 0;
80 return load_mission(0);
83 int load_mission(int mission_num)
85 Assert(mission_num == 0);
87 Current_mission_num = 0;
88 Current_mission_filename = Mission_list[0].filename;
89 Current_mission_longname = Mission_list[0].mission_name;
93 Assert(Last_level == 3);
95 #ifdef MACINTOSH // mac demo is using the regular hog and rl2 files
96 strcpy(Level_names[0],"d2leva-1.rl2");
97 strcpy(Level_names[1],"d2leva-2.rl2");
98 strcpy(Level_names[2],"d2leva-3.rl2");
100 strcpy(Level_names[0],"d2leva-1.sl2");
101 strcpy(Level_names[1],"d2leva-2.sl2");
102 strcpy(Level_names[2],"d2leva-3.sl2");
103 #endif // end of ifdef macintosh
108 int load_mission_by_name(char *mission_name)
110 if (strcmp(mission_name,SHAREWARE_MISSION_FILENAME))
111 return 0; //cannot load requested mission
113 return load_mission(0);
124 // Special versions of mission routines for Diamond/S3 version
127 #define OEM_MISSION_FILENAME "d2"
128 #define OEM_MISSION_NAME "D2 Destination:Quartzon"
130 int build_mission_list(int anarchy_mode)
132 anarchy_mode++; //kill warning
134 strcpy(Mission_list[0].filename,OEM_MISSION_FILENAME);
135 strcpy(Mission_list[0].mission_name,OEM_MISSION_NAME);
136 Mission_list[0].anarchy_only_flag = 0;
138 return load_mission(0);
141 int load_mission(int mission_num)
143 Assert(mission_num == 0);
145 Current_mission_num = 0;
146 Current_mission_filename = Mission_list[0].filename;
147 Current_mission_longname = Mission_list[0].mission_name;
151 Assert(Last_level == 8);
153 strcpy(Level_names[0],"d2leva-1.rl2");
154 strcpy(Level_names[1],"d2leva-2.rl2");
155 strcpy(Level_names[2],"d2leva-3.rl2");
156 strcpy(Level_names[3],"d2leva-4.rl2");
158 strcpy(Secret_level_names[0],"d2leva-s.rl2");
160 strcpy(Level_names[4],"d2levb-1.rl2");
161 strcpy(Level_names[5],"d2levb-2.rl2");
162 strcpy(Level_names[6],"d2levb-3.rl2");
163 strcpy(Level_names[7],"d2levb-4.rl2");
165 strcpy(Secret_level_names[1],"d2levb-s.rl2");
167 Secret_level_table[0] = 1;
168 Secret_level_table[1] = 5;
173 int load_mission_by_name(char *mission_name)
175 if (strcmp(mission_name,OEM_MISSION_FILENAME))
176 return 0; //cannot load requested mission
178 return load_mission(0);
184 //strips damn newline from end of line
185 char *mfgets(char *s,int n,CFILE *f)
190 if (r && s[strlen(s)-1] == '\n')
196 //compare a string for a token. returns true if match
197 int istok(char *buf,char *tok)
199 return strnicmp(buf,tok,strlen(tok)) == 0;
203 //adds a terminating 0 after a string at the first white space
204 void add_term(char *s)
206 while (*s && !isspace(*s)) s++;
211 //returns ptr to string after '=' & white space, or NULL if no '='
212 //adds 0 after parm at first white space
213 char *get_value(char *buf)
217 t = strchr(buf,'=')+1;
220 while (*t && isspace(*t)) t++;
226 return NULL; //error!
229 //reads a line, returns ptr to value of passed parm. returns NULL if none
230 char *get_parm_value(char *parm,CFILE *f)
234 if (!mfgets(buf,80,f))
238 return get_value(buf);
243 int ml_sort_func(mle *e0,mle *e1)
245 return stricmp(e0->mission_name,e1->mission_name);
249 extern char CDROM_dir[];
250 extern int HoardEquipped();
252 #define BUILTIN_MISSION (cfexist("d2.mn2")?"d2.mn2":"d2demo.mn2")
254 //returns 1 if file read ok, else 0
255 int read_mission_file(char *filename,int count,int location)
262 strcpy(filename2,MISSION_DIR);
266 songs_stop_redbook(); //so we can read from the CD
267 strcpy(filename2,CDROM_dir);
271 Int3(); //fall through
274 strcpy(filename2,"");
277 strcat(filename2,filename);
279 mfile = cfopen(filename2,"rb");
283 char temp[FILENAME_LEN],*t;
285 strcpy(temp,filename);
286 if ((t = strchr(temp,'.')) == NULL)
287 return 0; //missing extension
288 *t = 0; //kill extension
290 strncpy( Mission_list[count].filename, temp, 9 );
291 Mission_list[count].anarchy_only_flag = 0;
292 Mission_list[count].location = location;
294 p = get_parm_value("name",mfile);
296 if (!p) { //try enhanced mission
297 cfseek(mfile,0,SEEK_SET);
298 p = get_parm_value("xname",mfile);
304 if (!p) { //try super-enhanced mission!
305 cfseek(mfile,0,SEEK_SET);
306 p = get_parm_value("zname",mfile);
313 if ((t=strchr(p,';'))!=NULL)
316 while (isspace(*t)) t--;
317 strncpy(Mission_list[count].mission_name,p,MISSION_NAME_LEN);
324 p = get_parm_value("type",mfile);
328 Mission_list[count].anarchy_only_flag = istok(p,"anarchy");
339 //fills in the global list of missions. Returns the number of missions
340 //in the list. If anarchy_mode set, don't include non-anarchy levels.
341 //if there is only one mission, this function will call load_mission on it.
343 extern char CDROM_dir[];
344 extern char AltHogDir[];
345 extern char AltHogdir_initialized;
347 int build_mission_list(int anarchy_mode)
349 static int num_missions=-1;
350 int count=0,special_count=0;
352 char search_name[PATH_MAX + 5] = MISSION_DIR "*.mn2";
354 //now search for levels on disk
356 //@@Took out this code because after this routine was called once for
357 //@@a list of single-player missions, a subsequent call for a list of
358 //@@anarchy missions would not scan again, and thus would not find the
359 //@@anarchy-only missions. If we retain the minimum level of install,
360 //@@we may want to put the code back in, having it always scan for all
361 //@@missions, and have the code that uses it sort out the ones it wants.
362 //@@ if (num_missions != -1) {
363 //@@ if (Current_mission_num != 0)
364 //@@ load_mission(0); //set built-in mission as default
365 //@@ return num_missions;
368 if (!read_mission_file(BUILTIN_MISSION,0,ML_CURDIR)) //read built-in first
369 Error("Could not find required mission file <%s>",BUILTIN_MISSION);
371 special_count = count=1;
373 if( !FileFindFirst( search_name, &find ) ) {
375 if (stricmp(find.name,BUILTIN_MISSION)==0)
376 continue; //skip the built-in
378 if (read_mission_file(find.name,count,ML_MISSIONDIR)) {
380 if (anarchy_mode || !Mission_list[count].anarchy_only_flag)
384 } while( !FileFindNext( &find ) && count<MAX_MISSIONS);
388 if (AltHogdir_initialized) {
389 strcpy(search_name, AltHogDir);
390 strcat(search_name, "/" MISSION_DIR "*.mn2");
391 if( !FileFindFirst( search_name, &find ) ) {
393 if (stricmp(find.name,BUILTIN_MISSION)==0)
394 continue; //skip the built-in
396 if (read_mission_file(find.name,count,ML_MISSIONDIR)) {
398 if (anarchy_mode || !Mission_list[count].anarchy_only_flag)
402 } while( !FileFindNext( &find ) && count<MAX_MISSIONS);
407 //move vertigo to top of mission list
411 for (i=special_count;i<count;i++)
412 if (!stricmp(Mission_list[i].filename,"D2X")) { //swap!
415 temp = Mission_list[special_count];
416 Mission_list[special_count] = Mission_list[i];
417 Mission_list[i] = temp;
426 if (count>special_count)
427 qsort(&Mission_list[special_count],count-special_count,sizeof(*Mission_list),
428 (int (*)( const void *, const void * ))ml_sort_func);
430 load_mission(0); //set built-in mission as default
432 num_missions = count;
437 void init_extra_robot_movie(char *filename);
439 //values for built-in mission
441 //loads the specfied mission from the mission list. build_mission_list()
442 //must have been called. If build_mission_list() returns 0, this function
443 //does not need to be called. Returns true if mission loaded ok, else false.
444 int load_mission(int mission_num)
449 int enhanced_mission = 0;
451 Current_mission_num = mission_num;
453 mprintf(( 0, "Loading mission %d\n", mission_num ));
455 //read mission from file
457 switch (Mission_list[mission_num].location) {
458 case ML_MISSIONDIR: strcpy(buf,MISSION_DIR); break;
459 case ML_CDROM: strcpy(buf,CDROM_dir); break;
460 default: Int3(); //fall through
461 case ML_CURDIR: strcpy(buf,""); break;
463 strcat(buf,Mission_list[mission_num].filename);
466 mfile = cfopen(buf,"rb");
468 Current_mission_num = -1;
472 if (mission_num != 0) { //for non-builtin missions, load HOG
474 strcpy(buf+strlen(buf)-4,".hog"); //change extension
476 found_hogfile = cfile_use_alternate_hogfile(buf);
478 #ifdef RELEASE //for release, require mission to be in hogfile
479 if (! found_hogfile) {
481 Current_mission_num = -1;
489 Last_secret_level = 0;
491 while (mfgets(buf,80,mfile)) {
493 if (istok(buf,"name"))
494 continue; //already have name, go to next line
495 if (istok(buf,"xname")) {
496 enhanced_mission = 1;
497 continue; //already have name, go to next line
499 if (istok(buf,"zname")) {
500 enhanced_mission = 2;
501 continue; //already have name, go to next line
503 else if (istok(buf,"type"))
504 continue; //already have name, go to next line
505 else if (istok(buf,"hog")) {
508 while (*(bufp++) != '=')
512 while (*(++bufp) == ' ')
515 cfile_use_alternate_hogfile(bufp);
516 mprintf((0, "Hog file override = [%s]\n", bufp));
518 else if (istok(buf,"num_levels")) {
520 if ((v=get_value(buf))!=NULL) {
525 for (i=0;i<n_levels && mfgets(buf,80,mfile);i++) {
528 if (strlen(buf) <= 12) {
529 strcpy(Level_names[i],buf);
538 else if (istok(buf,"num_secrets")) {
539 if ((v=get_value(buf))!=NULL) {
542 N_secret_levels = atoi(v);
544 Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
546 for (i=0;i<N_secret_levels && mfgets(buf,80,mfile);i++) {
550 if ((t=strchr(buf,','))!=NULL) *t++=0;
555 if (strlen(buf) <= 12) {
556 strcpy(Secret_level_names[i],buf);
557 Secret_level_table[i] = atoi(t);
558 if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
573 if (Last_level <= 0) {
574 Current_mission_num = -1; //no valid mission loaded
578 Current_mission_filename = Mission_list[Current_mission_num].filename;
579 Current_mission_longname = Mission_list[Current_mission_num].mission_name;
581 if (enhanced_mission) {
583 extern void bm_read_extra_robots();
584 sprintf(t,"%s.ham",Current_mission_filename);
585 bm_read_extra_robots(t,enhanced_mission);
586 strncpy(t,Current_mission_filename,6);
588 init_extra_robot_movie(t);
594 //loads the named mission if exists.
595 //Returns true if mission loaded ok, else false.
596 int load_mission_by_name(char *mission_name)
600 n = build_mission_list(1);
603 if (!stricmp(mission_name,Mission_list[i].filename))
604 return load_mission(i);
606 return 0; //couldn't find mission