831 lines
20 KiB
C
831 lines
20 KiB
C
/* $Id: mission.c,v 1.30 2004-11-19 18:42:48 schaffner Exp $ */
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/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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/*
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*
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* Code to handle multiple missions
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <conf.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <limits.h>
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#include "pstypes.h"
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#include "cfile.h"
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#include "strutil.h"
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#include "inferno.h"
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#include "mission.h"
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#include "gameseq.h"
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#include "titles.h"
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#include "songs.h"
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#include "mono.h"
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#include "error.h"
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#include "findfile.h"
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#include "config.h"
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#include "newmenu.h"
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#include "text.h"
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#include "u_mem.h"
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//values for d1 built-in mission
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#define BIM_LAST_LEVEL 27
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#define BIM_LAST_SECRET_LEVEL -3
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#define BIM_BRIEFING_FILE "briefing.tex"
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#define BIM_ENDING_FILE "endreg.tex"
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//mission list entry
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typedef struct mle {
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char mission_name[MISSION_NAME_LEN+1];
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char filename[9]; // filename without extension
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ubyte descent_version; // descent 1 or descent 2?
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bool anarchy_only_flag; // if true, mission is anarchy only
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int builtin_hogsize; // This is used to determine the version. Only for the built in mission.
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ubyte location; // see defines below
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} mle;
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//values that describe where a mission is located
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#define ML_CURDIR 0
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#define ML_MISSIONDIR 1
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#define ML_CDROM 2
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mle Mission_list[MAX_MISSIONS];
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int num_missions = -1;
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Mission *Current_mission = NULL; // currently loaded mission
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//
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// Special versions of mission routines for d1 builtins
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//
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int load_mission_d1(void)
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{
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int i;
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switch (cfile_size("descent.hog")) {
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case D1_SHAREWARE_MISSION_HOGSIZE:
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case D1_SHAREWARE_10_MISSION_HOGSIZE:
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N_secret_levels = 0;
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Last_level = 7;
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Last_secret_level = 0;
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//build level names
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for (i=0;i<Last_level;i++)
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sprintf(Level_names[i], "level%02d.sdl", i+1);
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break;
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case D1_MAC_SHARE_MISSION_HOGSIZE:
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N_secret_levels = 0;
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Last_level = 3;
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Last_secret_level = 0;
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//build level names
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for (i=0;i<Last_level;i++)
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sprintf(Level_names[i], "level%02d.sdl", i+1);
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break;
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case D1_OEM_MISSION_HOGSIZE:
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case D1_OEM_10_MISSION_HOGSIZE:
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N_secret_levels = 1;
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Last_level = 15;
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Last_secret_level = -1;
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//build level names
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for (i=0; i < Last_level - 1; i++)
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sprintf(Level_names[i], "level%02d.rdl", i+1);
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sprintf(Level_names[i], "saturn%02d.rdl", i+1);
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for (i=0; i < -Last_secret_level; i++)
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sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
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Secret_level_table[0] = 10;
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break;
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default:
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Int3(); // fall through
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case D1_MISSION_HOGSIZE:
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case D1_10_MISSION_HOGSIZE:
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case D1_MAC_MISSION_HOGSIZE:
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N_secret_levels = 3;
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Last_level = BIM_LAST_LEVEL;
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Last_secret_level = BIM_LAST_SECRET_LEVEL;
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//build level names
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for (i=0;i<Last_level;i++)
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sprintf(Level_names[i], "level%02d.rdl", i+1);
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for (i=0;i<-Last_secret_level;i++)
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sprintf(Secret_level_names[i], "levels%1d.rdl", i+1);
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Secret_level_table[0] = 10;
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Secret_level_table[1] = 21;
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Secret_level_table[2] = 24;
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break;
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}
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strcpy(Briefing_text_filename,BIM_BRIEFING_FILE);
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strcpy(Ending_text_filename,BIM_ENDING_FILE);
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return 1;
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}
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//
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// Special versions of mission routines for shareware
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//
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int load_mission_shareware(void)
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{
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strcpy(Current_mission->mission_name, SHAREWARE_MISSION_NAME);
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Current_mission->descent_version = 2;
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Current_mission->anarchy_only_flag = 0;
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switch (Current_mission->builtin_hogsize) {
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case MAC_SHARE_MISSION_HOGSIZE:
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N_secret_levels = 1;
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Last_level = 4;
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Last_secret_level = -1;
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// mac demo is using the regular hog and rl2 files
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strcpy(Level_names[0],"d2leva-1.rl2");
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strcpy(Level_names[1],"d2leva-2.rl2");
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strcpy(Level_names[2],"d2leva-3.rl2");
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strcpy(Level_names[3],"d2leva-4.rl2");
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strcpy(Secret_level_names[0],"d2leva-s.rl2");
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break;
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default:
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Int3(); // fall through
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case SHAREWARE_MISSION_HOGSIZE:
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N_secret_levels = 0;
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Last_level = 3;
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Last_secret_level = 0;
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strcpy(Level_names[0],"d2leva-1.sl2");
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strcpy(Level_names[1],"d2leva-2.sl2");
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strcpy(Level_names[2],"d2leva-3.sl2");
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}
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return 1;
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}
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//
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// Special versions of mission routines for Diamond/S3 version
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//
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int load_mission_oem(void)
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{
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strcpy(Current_mission->mission_name, OEM_MISSION_NAME);
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Current_mission->descent_version = 2;
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Current_mission->anarchy_only_flag = 0;
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N_secret_levels = 2;
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Last_level = 8;
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Last_secret_level = -2;
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strcpy(Level_names[0],"d2leva-1.rl2");
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strcpy(Level_names[1],"d2leva-2.rl2");
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strcpy(Level_names[2],"d2leva-3.rl2");
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strcpy(Level_names[3],"d2leva-4.rl2");
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strcpy(Secret_level_names[0],"d2leva-s.rl2");
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strcpy(Level_names[4],"d2levb-1.rl2");
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strcpy(Level_names[5],"d2levb-2.rl2");
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strcpy(Level_names[6],"d2levb-3.rl2");
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strcpy(Level_names[7],"d2levb-4.rl2");
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strcpy(Secret_level_names[1],"d2levb-s.rl2");
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Secret_level_table[0] = 1;
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Secret_level_table[1] = 5;
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return 1;
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}
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//compare a string for a token. returns true if match
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int istok(char *buf,char *tok)
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{
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return strnicmp(buf,tok,strlen(tok)) == 0;
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}
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//adds a terminating 0 after a string at the first white space
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void add_term(char *s)
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{
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while (*s && !isspace(*s)) s++;
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*s = 0; //terminate!
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}
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//returns ptr to string after '=' & white space, or NULL if no '='
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//adds 0 after parm at first white space
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char *get_value(char *buf)
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{
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char *t;
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t = strchr(buf,'=')+1;
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if (t) {
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while (*t && isspace(*t)) t++;
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if (*t)
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return t;
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}
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return NULL; //error!
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}
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//reads a line, returns ptr to value of passed parm. returns NULL if none
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char *get_parm_value(char *parm,CFILE *f)
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{
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static char buf[80];
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if (!cfgets(buf,80,f))
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return NULL;
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if (istok(buf,parm))
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return get_value(buf);
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else
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return NULL;
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}
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int ml_sort_func(mle *e0,mle *e1)
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{
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return stricmp(e0->mission_name,e1->mission_name);
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}
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extern char CDROM_dir[];
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//returns 1 if file read ok, else 0
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int read_mission_file(char *filename,int count,int location)
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{
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char filename2[100];
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CFILE *mfile;
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//printf("reading: %s\n", filename);
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switch (location) {
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case ML_MISSIONDIR:
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strcpy(filename2,MISSION_DIR);
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break;
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case ML_CDROM:
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songs_stop_redbook(); //so we can read from the CD
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strcpy(filename2,CDROM_dir);
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break;
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default:
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Int3(); //fall through
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case ML_CURDIR:
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strcpy(filename2,"");
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break;
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}
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strcat(filename2,filename);
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mfile = cfopen(filename2,"rb");
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if (mfile) {
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char *p;
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char temp[FILENAME_LEN],*t;
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strcpy(temp,filename);
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if ((t = strchr(temp,'.')) == NULL)
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return 0; //missing extension
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// look if it's .mn2 or .msn
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Mission_list[count].descent_version = (t[3] == '2') ? 2 : 1;
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*t = 0; //kill extension
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strncpy( Mission_list[count].filename, temp, 9 );
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Mission_list[count].anarchy_only_flag = 0;
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Mission_list[count].location = location;
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p = get_parm_value("name",mfile);
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if (!p) { //try enhanced mission
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cfseek(mfile,0,SEEK_SET);
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p = get_parm_value("xname",mfile);
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}
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if (!p) { //try super-enhanced mission!
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cfseek(mfile,0,SEEK_SET);
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p = get_parm_value("zname",mfile);
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}
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if (p) {
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char *t;
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if ((t=strchr(p,';'))!=NULL)
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*t=0;
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t = p + strlen(p)-1;
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while (isspace(*t)) t--;
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strncpy(Mission_list[count].mission_name,p,MISSION_NAME_LEN);
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}
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else {
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cfclose(mfile);
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return 0;
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}
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p = get_parm_value("type",mfile);
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//get mission type
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if (p)
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Mission_list[count].anarchy_only_flag = istok(p,"anarchy");
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cfclose(mfile);
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return 1;
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}
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return 0;
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}
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void add_d1_builtin_mission_to_list(int *count)
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{
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int size;
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if (!cfexist("descent.hog"))
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return;
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size = cfile_size("descent.hog");
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switch (size) {
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case D1_SHAREWARE_MISSION_HOGSIZE:
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case D1_SHAREWARE_10_MISSION_HOGSIZE:
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case D1_MAC_SHARE_MISSION_HOGSIZE:
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strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
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strcpy(Mission_list[*count].mission_name, D1_SHAREWARE_MISSION_NAME);
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Mission_list[*count].anarchy_only_flag = 0;
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break;
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case D1_OEM_MISSION_HOGSIZE:
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case D1_OEM_10_MISSION_HOGSIZE:
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strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
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strcpy(Mission_list[*count].mission_name, D1_OEM_MISSION_NAME);
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Mission_list[*count].anarchy_only_flag = 0;
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break;
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default:
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Warning("Unknown D1 hogsize %d\n", size);
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Int3();
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// fall through
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case D1_MISSION_HOGSIZE:
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case D1_10_MISSION_HOGSIZE:
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case D1_MAC_MISSION_HOGSIZE:
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strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
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strcpy(Mission_list[*count].mission_name, D1_MISSION_NAME);
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Mission_list[*count].anarchy_only_flag = 0;
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break;
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}
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Mission_list[*count].descent_version = 1;
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Mission_list[*count].anarchy_only_flag = 0;
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++(*count);
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}
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void add_builtin_mission_to_list(int *count, char *name)
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{
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int size = cfile_size("descent2.hog");
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if (size == -1)
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size = cfile_size("d2demo.hog");
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switch (size) {
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case SHAREWARE_MISSION_HOGSIZE:
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case MAC_SHARE_MISSION_HOGSIZE:
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strcpy(Mission_list[*count].filename,SHAREWARE_MISSION_FILENAME);
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strcpy(Mission_list[*count].mission_name,SHAREWARE_MISSION_NAME);
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Mission_list[*count].anarchy_only_flag = 0;
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break;
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case OEM_MISSION_HOGSIZE:
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strcpy(Mission_list[*count].filename,OEM_MISSION_FILENAME);
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strcpy(Mission_list[*count].mission_name,OEM_MISSION_NAME);
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Mission_list[*count].anarchy_only_flag = 0;
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break;
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default:
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Warning("Unknown hogsize %d, trying %s\n", size, FULL_MISSION_FILENAME ".mn2");
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Int3(); //fall through
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case FULL_MISSION_HOGSIZE:
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case FULL_10_MISSION_HOGSIZE:
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case MAC_FULL_MISSION_HOGSIZE:
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if (!read_mission_file(FULL_MISSION_FILENAME ".mn2", 0, ML_CURDIR))
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Error("Could not find required mission file <%s>", FULL_MISSION_FILENAME ".mn2");
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}
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strcpy(name, Mission_list[*count].filename);
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Mission_list[*count].builtin_hogsize = size;
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Mission_list[*count].descent_version = 2;
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Mission_list[*count].anarchy_only_flag = 0;
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++(*count);
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}
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void add_missions_to_list(char *search_name, int *count, int anarchy_mode)
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{
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FILEFINDSTRUCT find;
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if( !FileFindFirst( search_name, &find ) ) {
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do {
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if (read_mission_file( find.name, *count, ML_MISSIONDIR )) {
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if (anarchy_mode || !Mission_list[*count].anarchy_only_flag)
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++(*count);
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}
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} while( !FileFindNext( &find ) && *count < MAX_MISSIONS);
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FileFindClose();
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if (*count >= MAX_MISSIONS)
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mprintf((0, "Warning: more missions than d2x can handle\n"));
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}
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}
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/* move <mission_name> to <place> on mission list, increment <place> */
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void promote (char * mission_name, int * top_place, int num_missions)
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{
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int i;
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char name[FILENAME_LEN], * t;
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strcpy(name, mission_name);
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if ((t = strchr(name,'.')) != NULL)
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*t = 0; //kill extension
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//printf("promoting: %s\n", name);
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for (i = *top_place; i < num_missions; i++)
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if (!stricmp(Mission_list[i].filename, name)) {
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//swap mission positions
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mle temp;
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temp = Mission_list[*top_place];
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Mission_list[*top_place] = Mission_list[i];
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Mission_list[i] = temp;
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++(*top_place);
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break;
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}
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}
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void free_mission(void)
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{
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// May become more complex with the editor
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if (Current_mission) {
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d_free(Current_mission);
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}
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}
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//fills in the global list of missions. Returns the number of missions
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//in the list. If anarchy_mode is set, then also add anarchy-only missions.
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extern char CDROM_dir[];
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extern char AltHogDir[];
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extern char AltHogdir_initialized;
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int build_mission_list(int anarchy_mode)
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{
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static int num_missions=-1;
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int count = 0;
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int top_place;
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char builtin_mission_filename[FILENAME_LEN];
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//now search for levels on disk
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//@@Took out this code because after this routine was called once for
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//@@a list of single-player missions, a subsequent call for a list of
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//@@anarchy missions would not scan again, and thus would not find the
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//@@anarchy-only missions. If we retain the minimum level of install,
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//@@we may want to put the code back in, having it always scan for all
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//@@missions, and have the code that uses it sort out the ones it wants.
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//@@ if (num_missions != -1) {
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//@@ if (Current_mission_num != 0)
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//@@ load_mission(0); //set built-in mission as default
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//@@ return num_missions;
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//@@ }
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add_builtin_mission_to_list(&count, builtin_mission_filename); //read built-in first
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add_d1_builtin_mission_to_list(&count);
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add_missions_to_list(MISSION_DIR "*.mn2", &count, anarchy_mode);
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add_missions_to_list(MISSION_DIR "*.msn", &count, anarchy_mode);
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if (AltHogdir_initialized) {
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char search_name[PATH_MAX + 5];
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strcpy(search_name, AltHogDir);
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strcat(search_name, "/" MISSION_DIR "*.mn2");
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add_missions_to_list(search_name, &count, anarchy_mode);
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strcpy(search_name, AltHogDir);
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strcat(search_name, "/" MISSION_DIR "*.msn");
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add_missions_to_list(search_name, &count, anarchy_mode);
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}
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// move original missions (in story-chronological order)
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// to top of mission list
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top_place = 0;
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promote("descent", &top_place, count); // original descent 1 mission
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promote(builtin_mission_filename, &top_place, count); // d2 or d2demo
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promote("d2x", &top_place, count); // vertigo
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if (count > top_place)
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qsort(&Mission_list[top_place],
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count - top_place,
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sizeof(*Mission_list),
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(int (*)( const void *, const void * ))ml_sort_func);
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if (count > top_place)
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qsort(&Mission_list[top_place],
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count - top_place,
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sizeof(*Mission_list),
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(int (*)( const void *, const void * ))ml_sort_func);
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//load_mission(0); //set built-in mission as default
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num_missions = count;
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atexit(free_mission);
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return count;
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}
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void init_extra_robot_movie(char *filename);
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//values for built-in mission
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//loads the specfied mission from the mission list.
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//build_mission_list() must have been called.
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//Returns true if mission loaded ok, else false.
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int load_mission(int mission_num)
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{
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CFILE *mfile;
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char buf[80], *v;
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int found_hogfile;
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if (Current_mission)
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free_mission();
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Current_mission = d_malloc(sizeof(Mission));
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if (!Current_mission) return 0;
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*(mle *) Current_mission = Mission_list[mission_num];
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// for Descent 1 missions, load descent.hog
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if (EMULATING_D1) {
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if (!cfile_use_descent1_hogfile("descent.hog"))
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Warning("descent.hog not available, this mission may be missing some files required for briefings and exit sequence\n");
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if (!stricmp(Current_mission_filename, D1_MISSION_FILENAME))
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return load_mission_d1();
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}
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if (PLAYING_BUILTIN_MISSION) {
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switch (Current_mission->builtin_hogsize) {
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case SHAREWARE_MISSION_HOGSIZE:
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case MAC_SHARE_MISSION_HOGSIZE:
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return load_mission_shareware();
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break;
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case OEM_MISSION_HOGSIZE:
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return load_mission_oem();
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break;
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default:
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Int3(); // fall through
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case FULL_MISSION_HOGSIZE:
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case FULL_10_MISSION_HOGSIZE:
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case MAC_FULL_MISSION_HOGSIZE:
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// continue on... (use d2.mn2 from hogfile)
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break;
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}
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}
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mprintf(( 0, "Loading mission %s\n", Current_mission_filename ));
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//read mission from file
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switch (Mission_list[mission_num].location) {
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case ML_MISSIONDIR:
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strcpy(buf,MISSION_DIR);
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break;
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case ML_CDROM:
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strcpy(buf,CDROM_dir);
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break;
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default:
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Int3(); //fall through
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case ML_CURDIR:
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strcpy(buf,"");
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break;
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}
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strcat(buf,Mission_list[mission_num].filename);
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if (Mission_list[mission_num].descent_version == 2)
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strcat(buf,".mn2");
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else
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strcat(buf,".msn");
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mfile = cfopen(buf,"rb");
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if (mfile == NULL) {
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free_mission();
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return 0; //error!
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}
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//for non-builtin missions, load HOG
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if (!PLAYING_BUILTIN_MISSION) {
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strcpy(buf+strlen(buf)-4,".hog"); //change extension
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found_hogfile = cfile_use_alternate_hogfile(buf);
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#ifdef RELEASE //for release, require mission to be in hogfile
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if (! found_hogfile) {
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cfclose(mfile);
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free_mission();
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return 0;
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}
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#endif
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}
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//init vars
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Last_level = 0;
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Last_secret_level = 0;
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Briefing_text_filename[0] = 0;
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Ending_text_filename[0] = 0;
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while (cfgets(buf,80,mfile)) {
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if (istok(buf,"name")) {
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Current_mission->enhanced = 0;
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continue; //already have name, go to next line
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}
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if (istok(buf,"xname")) {
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Current_mission->enhanced = 1;
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continue; //already have name, go to next line
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}
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if (istok(buf,"zname")) {
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Current_mission->enhanced = 2;
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continue; //already have name, go to next line
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}
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else if (istok(buf,"type"))
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continue; //already have name, go to next line
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else if (istok(buf,"hog")) {
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char *bufp = buf;
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while (*(bufp++) != '=')
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;
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if (*bufp == ' ')
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while (*(++bufp) == ' ')
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;
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cfile_use_alternate_hogfile(bufp);
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mprintf((0, "Hog file override = [%s]\n", bufp));
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}
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else if (istok(buf,"briefing")) {
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if ((v = get_value(buf)) != NULL) {
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add_term(v);
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if (strlen(v) < 13)
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strcpy(Briefing_text_filename,v);
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}
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}
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else if (istok(buf,"ending")) {
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if ((v = get_value(buf)) != NULL) {
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add_term(v);
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if (strlen(v) < 13)
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strcpy(Ending_text_filename,v);
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}
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}
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else if (istok(buf,"num_levels")) {
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if ((v=get_value(buf))!=NULL) {
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int n_levels,i;
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n_levels = atoi(v);
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for (i=0;i<n_levels && cfgets(buf,80,mfile);i++) {
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add_term(buf);
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if (strlen(buf) <= 12) {
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strcpy(Level_names[i],buf);
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Last_level++;
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}
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else
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break;
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}
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}
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}
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else if (istok(buf,"num_secrets")) {
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if ((v=get_value(buf))!=NULL) {
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int i;
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N_secret_levels = atoi(v);
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Assert(N_secret_levels <= MAX_SECRET_LEVELS_PER_MISSION);
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for (i=0;i<N_secret_levels && cfgets(buf,80,mfile);i++) {
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char *t;
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if ((t=strchr(buf,','))!=NULL) *t++=0;
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else
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break;
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add_term(buf);
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if (strlen(buf) <= 12) {
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strcpy(Secret_level_names[i],buf);
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Secret_level_table[i] = atoi(t);
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if (Secret_level_table[i]<1 || Secret_level_table[i]>Last_level)
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break;
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Last_secret_level--;
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}
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else
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break;
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}
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}
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}
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}
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cfclose(mfile);
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if (Last_level <= 0) {
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free_mission(); //no valid mission loaded
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return 0;
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}
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if (Current_mission->enhanced) {
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char t[50];
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extern void bm_read_extra_robots();
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sprintf(t,"%s.ham",Current_mission_filename);
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bm_read_extra_robots(t, Current_mission->enhanced);
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strncpy(t,Current_mission_filename,6);
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strcat(t,"-l.mvl");
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init_extra_robot_movie(t);
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}
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return 1;
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}
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//loads the named mission if exists.
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//Returns true if mission loaded ok, else false.
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int load_mission_by_name(char *mission_name)
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{
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int n,i;
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n = build_mission_list(1);
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for (i=0;i<n;i++)
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if (!stricmp(mission_name,Mission_list[i].filename))
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return load_mission(i);
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return 0; //couldn't find mission
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}
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int select_mission(int anarchy_mode, char *message)
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{
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int n_missions;
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n_missions = build_mission_list(anarchy_mode);
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if (n_missions <= 1) {
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load_mission(0);
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} else {
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int new_mission_num,i, default_mission;
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char * m[MAX_MISSIONS];
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default_mission = 0;
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for (i=0;i<n_missions;i++) {
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m[i] = Mission_list[i].mission_name;
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if ( !stricmp( m[i], config_last_mission ) )
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default_mission = i;
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}
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new_mission_num = newmenu_listbox1( message, n_missions, m, 1, default_mission, NULL );
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if (new_mission_num == -1)
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return 0; //abort!
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strcpy(config_last_mission, m[new_mission_num] );
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if (!load_mission(new_mission_num)) {
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nm_messagebox( NULL, 1, TXT_OK, TXT_MISSION_ERROR);
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return 0;
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}
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}
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return 1;
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}
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