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dxx-rebirth/main/mission.c
Chris Taylor 988e188fb1 make add_missions_to_list recursive
2005-02-25 12:46:24 +00:00

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/* $Id: mission.c,v 1.42 2005-02-25 12:46:24 chris Exp $ */
/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
/*
*
* Code to handle multiple missions
*
*/
#ifdef HAVE_CONFIG_H
#include <conf.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#include "pstypes.h"
#include "cfile.h"
#include "strutil.h"
#include "inferno.h"
#include "mission.h"
#include "gameseq.h"
#include "titles.h"
#include "songs.h"
#include "mono.h"
#include "error.h"
#include "config.h"
#include "newmenu.h"
#include "text.h"
#include "u_mem.h"
#include "ignorecase.h"
//values for d1 built-in mission
#define BIM_LAST_LEVEL 27
#define BIM_LAST_SECRET_LEVEL -3
#define BIM_BRIEFING_FILE "briefing.tex"
#define BIM_ENDING_FILE "endreg.tex"
//mission list entry
typedef struct mle {
char *filename; // filename without extension
int builtin_hogsize; // if it's the built-in mission, used for determining the version
char mission_name[MISSION_NAME_LEN+1];
ubyte descent_version; // descent 1 or descent 2?
ubyte anarchy_only_flag; // if true, mission is anarchy only
char *path; // relative file path
int location; // see defines below
} mle;
//values that describe where a mission is located
#define ML_CURDIR 0
#define ML_MISSIONDIR 1
#define ML_CDROM 2
int num_missions = -1;
Mission *Current_mission = NULL; // currently loaded mission
//
// Special versions of mission routines for d1 builtins
//
int load_mission_d1(void)
{
int i;
switch (cfile_size("descent.hog")) {
case D1_SHAREWARE_MISSION_HOGSIZE:
case D1_SHAREWARE_10_MISSION_HOGSIZE:
N_secret_levels = 0;
Last_level = 7;
Last_secret_level = 0;
//build level names
for (i=0;i<Last_level;i++)
sprintf(Level_names[i], "level%02d.sdl", i+1);
break;
case D1_MAC_SHARE_MISSION_HOGSIZE:
N_secret_levels = 0;
Last_level = 3;
Last_secret_level = 0;
//build level names
for (i=0;i<Last_level;i++)
sprintf(Level_names[i], "level%02d.sdl", i+1);
break;
case D1_OEM_MISSION_HOGSIZE:
case D1_OEM_10_MISSION_HOGSIZE:
N_secret_levels = 1;
Last_level = 15;
Last_secret_level = -1;
//build level names
for (i=0; i < Last_level - 1; i++)
sprintf(Level_names[i], "level%02d.rdl", i+1);
sprintf(Level_names[i], "saturn%02d.rdl", i+1);
for (i=0; i < -Last_secret_level; i++)
sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
Secret_level_table[0] = 10;
break;
default:
Int3(); // fall through
case D1_MISSION_HOGSIZE:
case D1_10_MISSION_HOGSIZE:
case D1_MAC_MISSION_HOGSIZE:
N_secret_levels = 3;
Last_level = BIM_LAST_LEVEL;
Last_secret_level = BIM_LAST_SECRET_LEVEL;
//build level names
for (i=0;i<Last_level;i++)
sprintf(Level_names[i], "level%02d.rdl", i+1);
for (i=0;i<-Last_secret_level;i++)
sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
Secret_level_table[0] = 10;
Secret_level_table[1] = 21;
Secret_level_table[2] = 24;
break;
}
strcpy(Briefing_text_filename,BIM_BRIEFING_FILE);
strcpy(Ending_text_filename,BIM_ENDING_FILE);
return 1;
}
//
// Special versions of mission routines for shareware
//
int load_mission_shareware(void)
{
strcpy(Current_mission->mission_name, SHAREWARE_MISSION_NAME);
Current_mission->descent_version = 2;
Current_mission->anarchy_only_flag = 0;
switch (Current_mission->builtin_hogsize) {
case MAC_SHARE_MISSION_HOGSIZE:
N_secret_levels = 1;
Last_level = 4;
Last_secret_level = -1;
// mac demo is using the regular hog and rl2 files
strcpy(Level_names[0],"d2leva-1.rl2");
strcpy(Level_names[1],"d2leva-2.rl2");
strcpy(Level_names[2],"d2leva-3.rl2");
strcpy(Level_names[3],"d2leva-4.rl2");
strcpy(Secret_level_names[0],"d2leva-s.rl2");
break;
default:
Int3(); // fall through
case SHAREWARE_MISSION_HOGSIZE:
N_secret_levels = 0;
Last_level = 3;
Last_secret_level = 0;
strcpy(Level_names[0],"d2leva-1.sl2");
strcpy(Level_names[1],"d2leva-2.sl2");
strcpy(Level_names[2],"d2leva-3.sl2");
}
return 1;
}
//
// Special versions of mission routines for Diamond/S3 version
//
int load_mission_oem(void)
{
strcpy(Current_mission->mission_name, OEM_MISSION_NAME);
Current_mission->descent_version = 2;
Current_mission->anarchy_only_flag = 0;
N_secret_levels = 2;
Last_level = 8;
Last_secret_level = -2;
strcpy(Level_names[0],"d2leva-1.rl2");
strcpy(Level_names[1],"d2leva-2.rl2");
strcpy(Level_names[2],"d2leva-3.rl2");
strcpy(Level_names[3],"d2leva-4.rl2");
strcpy(Secret_level_names[0],"d2leva-s.rl2");
strcpy(Level_names[4],"d2levb-1.rl2");
strcpy(Level_names[5],"d2levb-2.rl2");
strcpy(Level_names[6],"d2levb-3.rl2");
strcpy(Level_names[7],"d2levb-4.rl2");
strcpy(Secret_level_names[1],"d2levb-s.rl2");
Secret_level_table[0] = 1;
Secret_level_table[1] = 5;
return 1;
}
//compare a string for a token. returns true if match
int istok(char *buf,char *tok)
{
return strnicmp(buf,tok,strlen(tok)) == 0;
}
//adds a terminating 0 after a string at the first white space
void add_term(char *s)
{
while (*s && !isspace(*s)) s++;
*s = 0; //terminate!
}
//returns ptr to string after '=' & white space, or NULL if no '='
//adds 0 after parm at first white space
char *get_value(char *buf)
{
char *t;
t = strchr(buf,'=')+1;
if (t) {
while (*t && isspace(*t)) t++;
if (*t)
return t;
}
return NULL; //error!
}
//reads a line, returns ptr to value of passed parm. returns NULL if none
char *get_parm_value(char *parm,CFILE *f)
{
static char buf[80];
if (!cfgets(buf,80,f))
return NULL;
if (istok(buf,parm))
return get_value(buf);
else
return NULL;
}
int ml_sort_func(mle *e0,mle *e1)
{
return stricmp(e0->mission_name,e1->mission_name);
}
extern char CDROM_dir[];
//returns 1 if file read ok, else 0
int read_mission_file(mle *mission, char *filename, int location)
{
char filename2[100];
CFILE *mfile;
//printf("reading: %s\n", filename);
switch (location) {
case ML_MISSIONDIR:
strcpy(filename2,MISSION_DIR);
break;
case ML_CDROM:
songs_stop_redbook(); //so we can read from the CD
strcpy(filename2,CDROM_dir);
break;
default:
Int3(); //fall through
case ML_CURDIR:
strcpy(filename2,"");
break;
}
strcat(filename2,filename);
mfile = cfopen(filename2,"rb");
if (mfile) {
char *p;
char temp[PATH_MAX], *ext;
strcpy(temp,filename);
p = strrchr(temp, '/'); // get the filename at the end of the path
if (!p)
p = temp;
else p++;
if ((ext = strchr(p, '.')) == NULL)
return 0; //missing extension
// look if it's .mn2 or .msn
mission->descent_version = (ext[3] == '2') ? 2 : 1;
*ext = 0; //kill extension
mission->path = d_strdup(temp);
mission->anarchy_only_flag = 0;
mission->filename = mission->path + (p - temp);
mission->location = location;
p = get_parm_value("name",mfile);
if (!p) { //try enhanced mission
cfseek(mfile,0,SEEK_SET);
p = get_parm_value("xname",mfile);
}
if (!p) { //try super-enhanced mission!
cfseek(mfile,0,SEEK_SET);
p = get_parm_value("zname",mfile);
}
if (p) {
char *t;
if ((t=strchr(p,';'))!=NULL)
*t=0;
t = p + strlen(p)-1;
while (isspace(*t))
*t-- = 0; // remove trailing whitespace
if (strlen(p) > MISSION_NAME_LEN)
p[MISSION_NAME_LEN] = 0;
strncpy(mission->mission_name, p, MISSION_NAME_LEN + 1);
}
else {
cfclose(mfile);
d_free(mission->path);
return 0;
}
p = get_parm_value("type",mfile);
//get mission type
if (p)
mission->anarchy_only_flag = istok(p,"anarchy");
cfclose(mfile);
return 1;
}
return 0;
}
void add_d1_builtin_mission_to_list(mle *mission)
{
int size;
if (!cfexist("descent.hog"))
return;
size = cfile_size("descent.hog");
switch (size) {
case D1_SHAREWARE_MISSION_HOGSIZE:
case D1_SHAREWARE_10_MISSION_HOGSIZE:
case D1_MAC_SHARE_MISSION_HOGSIZE:
mission->filename = d_strdup(D1_MISSION_FILENAME);
strcpy(mission->mission_name, D1_SHAREWARE_MISSION_NAME);
mission->anarchy_only_flag = 0;
break;
case D1_OEM_MISSION_HOGSIZE:
case D1_OEM_10_MISSION_HOGSIZE:
mission->filename = d_strdup(D1_MISSION_FILENAME);
strcpy(mission->mission_name, D1_OEM_MISSION_NAME);
mission->anarchy_only_flag = 0;
break;
default:
Warning("Unknown D1 hogsize %d\n", size);
Int3();
// fall through
case D1_MISSION_HOGSIZE:
case D1_10_MISSION_HOGSIZE:
case D1_MAC_MISSION_HOGSIZE:
mission->filename = d_strdup(D1_MISSION_FILENAME);
strcpy(mission->mission_name, D1_MISSION_NAME);
mission->anarchy_only_flag = 0;
break;
}
mission->descent_version = 1;
mission->anarchy_only_flag = 0;
mission->builtin_hogsize = 0;
mission->path = mission->filename;
num_missions++;
}
void add_builtin_mission_to_list(mle *mission, char *name)
{
int size = cfile_size("descent2.hog");
if (size == -1)
size = cfile_size("d2demo.hog");
switch (size) {
case SHAREWARE_MISSION_HOGSIZE:
case MAC_SHARE_MISSION_HOGSIZE:
mission->filename = d_strdup(SHAREWARE_MISSION_FILENAME);
strcpy(mission->mission_name,SHAREWARE_MISSION_NAME);
mission->anarchy_only_flag = 0;
break;
case OEM_MISSION_HOGSIZE:
mission->filename = d_strdup(OEM_MISSION_FILENAME);
strcpy(mission->mission_name,OEM_MISSION_NAME);
mission->anarchy_only_flag = 0;
break;
default:
Warning("Unknown hogsize %d, trying %s\n", size, FULL_MISSION_FILENAME ".mn2");
Int3(); //fall through
case FULL_MISSION_HOGSIZE:
case FULL_10_MISSION_HOGSIZE:
case MAC_FULL_MISSION_HOGSIZE:
if (!read_mission_file(mission, FULL_MISSION_FILENAME ".mn2", ML_CURDIR))
Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
}
strcpy(name, mission->filename);
mission->builtin_hogsize = size;
mission->descent_version = 2;
mission->anarchy_only_flag = 0;
num_missions++;
}
void add_missions_to_list(mle *mission_list, char *path, char *rel_path, int anarchy_mode)
{
char **find, **i, *ext;
find = PHYSFS_enumerateFiles(path);
for (i = find; *i != NULL; i++)
{
if (strlen(path) + strlen(*i) + 1 >= PATH_MAX)
continue; // path is too long
strcat(rel_path, *i);
if (PHYSFS_isDirectory(path))
{
strcat(rel_path, "/");
add_missions_to_list(mission_list, path, rel_path, anarchy_mode);
*(strrchr(path, '/')) = 0;
}
else if ((ext = strrchr(*i, '.')) && (!strnicmp(ext, ".msn", 4) || !strnicmp(ext, ".mn2", 4)))
if (read_mission_file(&mission_list[num_missions], rel_path, ML_MISSIONDIR))
{
if (anarchy_mode || !mission_list[num_missions].anarchy_only_flag)
{
mission_list[num_missions].builtin_hogsize = 0;
num_missions++;
}
else
d_free(mission_list[num_missions].path);
}
if (num_missions >= MAX_MISSIONS)
{
mprintf((0, "Warning: more missions than d2x can handle\n"));
break;
}
(strrchr(path, '/'))[1] = 0; // chop off the entry
}
PHYSFS_freeList(find);
}
/* move <mission_name> to <place> on mission list, increment <place> */
void promote (mle *mission_list, char * mission_name, int * top_place)
{
int i;
char name[FILENAME_LEN], * t;
strcpy(name, mission_name);
if ((t = strchr(name,'.')) != NULL)
*t = 0; //kill extension
//printf("promoting: %s\n", name);
for (i = *top_place; i < num_missions; i++)
if (!stricmp(mission_list[i].filename, name)) {
//swap mission positions
mle temp;
temp = mission_list[*top_place];
mission_list[*top_place] = mission_list[i];
mission_list[i] = temp;
++(*top_place);
break;
}
}
void free_mission(void)
{
// May become more complex with the editor
if (Current_mission) {
d_free(Current_mission->filename);
d_free(Current_mission);
}
}
//fills in the global list of missions. Returns the number of missions
//in the list. If anarchy_mode is set, then also add anarchy-only missions.
extern char CDROM_dir[];
#if 0
extern char AltHogDir[];
extern char AltHogdir_initialized;
#endif
mle *build_mission_list(int anarchy_mode)
{
mle *mission_list;
int top_place;
char builtin_mission_filename[FILENAME_LEN];
char search_str[PATH_MAX] = MISSION_DIR;
//now search for levels on disk
//@@Took out this code because after this routine was called once for
//@@a list of single-player missions, a subsequent call for a list of
//@@anarchy missions would not scan again, and thus would not find the
//@@anarchy-only missions. If we retain the minimum level of install,
//@@we may want to put the code back in, having it always scan for all
//@@missions, and have the code that uses it sort out the ones it wants.
//@@ if (num_missions != -1) {
//@@ if (Current_mission_num != 0)
//@@ load_mission(0); //set built-in mission as default
//@@ return num_missions;
//@@ }
MALLOC(mission_list, mle, MAX_MISSIONS);
num_missions = 0;
add_builtin_mission_to_list(mission_list + num_missions, builtin_mission_filename); //read built-in first
add_d1_builtin_mission_to_list(mission_list + num_missions);
add_missions_to_list(mission_list, search_str, search_str + strlen(search_str), anarchy_mode);
// move original missions (in story-chronological order)
// to top of mission list
top_place = 0;
promote(mission_list, "descent", &top_place); // original descent 1 mission
promote(mission_list, builtin_mission_filename, &top_place); // d2 or d2demo
promote(mission_list, "d2x", &top_place); // vertigo
if (num_missions > top_place)
qsort(&mission_list[top_place],
num_missions - top_place,
sizeof(*mission_list),
(int (*)( const void *, const void * ))ml_sort_func);
if (num_missions > top_place)
qsort(&mission_list[top_place],
num_missions - top_place,
sizeof(*mission_list),
(int (*)( const void *, const void * ))ml_sort_func);
//load_mission(0); //set built-in mission as default
atexit(free_mission);
return mission_list;
}
void free_mission_list(mle *mission_list)
{
int i;
for (i = 0; i < num_missions; i++)
d_free(mission_list[i].path);
d_free(mission_list);
num_missions = 0;
}
void init_extra_robot_movie(char *filename);
//values for built-in mission
//loads the specfied mission from the mission list.
//build_mission_list() must have been called.
//Returns true if mission loaded ok, else false.
int load_mission(mle *mission)
{
CFILE *mfile;
char buf[PATH_MAX], *v;
int found_hogfile;
if (Current_mission)
free_mission();
Current_mission = d_malloc(sizeof(Mission));
if (!Current_mission) return 0;
*(mle *) Current_mission = *mission;
Current_mission->filename = d_strdup(mission->filename); // don't want to lose it
// for Descent 1 missions, load descent.hog
if (EMULATING_D1) {
if (!cfile_init("descent.hog"))
Warning("descent.hog not available, this mission may be missing some files required for briefings and exit sequence\n");
if (!stricmp(Current_mission_filename, D1_MISSION_FILENAME))
return load_mission_d1();
}
if (PLAYING_BUILTIN_MISSION) {
switch (Current_mission->builtin_hogsize) {
case SHAREWARE_MISSION_HOGSIZE:
case MAC_SHARE_MISSION_HOGSIZE:
return load_mission_shareware();
break;
case OEM_MISSION_HOGSIZE:
return load_mission_oem();
break;
default:
Int3(); // fall through
case FULL_MISSION_HOGSIZE:
case FULL_10_MISSION_HOGSIZE:
case MAC_FULL_MISSION_HOGSIZE:
// continue on... (use d2.mn2 from hogfile)
break;
}
}
mprintf(( 0, "Loading mission %s\n", Current_mission_filename ));
//read mission from file
switch (mission->location) {
case ML_MISSIONDIR:
strcpy(buf,MISSION_DIR);
break;
case ML_CDROM:
strcpy(buf,CDROM_dir);
break;
default:
Int3(); //fall through
case ML_CURDIR:
strcpy(buf,"");
break;
}
strcat(buf, mission->path);
if (mission->descent_version == 2)
strcat(buf,".mn2");
else
strcat(buf,".msn");
PHYSFSEXT_locateCorrectCase(buf);
mfile = cfopen(buf,"rb");
if (mfile == NULL) {
free_mission();
return 0; //error!
}
//for non-builtin missions, load HOG
if (!PLAYING_BUILTIN_MISSION) {
strcpy(buf+strlen(buf)-4,".hog"); //change extension
PHYSFSEXT_locateCorrectCase(buf);
found_hogfile = cfile_init(buf);
#ifdef RELEASE //for release, require mission to be in hogfile
if (! found_hogfile) {
cfclose(mfile);
free_mission();
return 0;
}
#endif
}
//init vars
Last_level = 0;
Last_secret_level = 0;
Briefing_text_filename[0] = 0;
Ending_text_filename[0] = 0;
while (cfgets(buf,80,mfile)) {
if (istok(buf,"name")) {
Current_mission->enhanced = 0;
continue; //already have name, go to next line
}
if (istok(buf,"xname")) {
Current_mission->enhanced = 1;
continue; //already have name, go to next line
}
if (istok(buf,"zname")) {
Current_mission->enhanced = 2;
continue; //already have name, go to next line
}
else if (istok(buf,"type"))
continue; //already have name, go to next line
else if (istok(buf,"hog")) {
char *bufp = buf;
while (*(bufp++) != '=')
;
if (*bufp == ' ')
while (*(++bufp) == ' ')
;
cfile_init(bufp);
mprintf((0, "Hog file override = [%s]\n", bufp));
}
else if (istok(buf,"briefing")) {
if ((v = get_value(buf)) != NULL) {
add_term(v);
if (strlen(v) < 13)
strcpy(Briefing_text_filename,v);
}
}
else if (istok(buf,"ending")) {
if ((v = get_value(buf)) != NULL) {
add_term(v);
if (strlen(v) < 13)
strcpy(Ending_text_filename,v);
}
}
else if (istok(buf,"num_levels")) {
if ((v=get_value(buf))!=NULL) {
int n_levels,i;
n_levels = atoi(v);
for (i=0;i<n_levels && cfgets(buf,80,mfile);i++) {
add_term(buf);
if (strlen(buf) <= 12) {
strcpy(Level_names[i],buf);
Last_level++;
}
else
break;
}
}
}
else if (istok(buf,"num_secrets")) {
if ((v=get_value(buf))!=NULL) {
int i;
N_secret_levels = atoi(v);
Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
for (i=0;i<N_secret_levels && cfgets(buf,80,mfile);i++) {
char *t;
if ((t=strchr(buf,','))!=NULL) *t++=0;
else
break;
add_term(buf);
if (strlen(buf) <= 12) {
strcpy(Secret_level_names[i],buf);
Secret_level_table[i] = atoi(t);
if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
break;
Last_secret_level--;
}
else
break;
}
}
}
}
cfclose(mfile);
if (Last_level <= 0) {
free_mission(); //no valid mission loaded
return 0;
}
if (Current_mission->enhanced) {
char t[50];
extern void bm_read_extra_robots();
sprintf(t,"%s.ham",Current_mission_filename);
bm_read_extra_robots(t, Current_mission->enhanced);
strncpy(t,Current_mission_filename,6);
init_extra_robot_movie(t);
}
return 1;
}
//loads the named mission if exists.
//Returns true if mission loaded ok, else false.
int load_mission_by_name(char *mission_name)
{
int i;
mle *mission_list = build_mission_list(1);
bool found = 0;
for (i = 0; i < num_missions; i++)
if (!stricmp(mission_name, mission_list[i].filename))
found = load_mission(mission_list + i);
free_mission_list(mission_list);
return found;
}
int select_mission(int anarchy_mode, char *message)
{
mle *mission_list = build_mission_list(anarchy_mode);
int new_mission_num;
if (num_missions <= 1) {
new_mission_num = load_mission(mission_list) ? 0 : -1;
} else {
int i, default_mission;
char * m[MAX_MISSIONS];
default_mission = 0;
for (i = 0; i < num_missions; i++) {
m[i] = mission_list[i].mission_name;
if ( !stricmp( m[i], config_last_mission ) )
default_mission = i;
}
new_mission_num = newmenu_listbox1( message, num_missions, m, 1, default_mission, NULL );
if (new_mission_num >= 0) {
// Chose a mission
strcpy(config_last_mission, m[new_mission_num] );
if (!load_mission(mission_list + new_mission_num)) {
nm_messagebox( NULL, 1, TXT_OK, TXT_MISSION_ERROR);
new_mission_num = -1;
}
}
}
free_mission_list(mission_list);
return (new_mission_num >= 0);
}
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