From 66aaabfd22857fde85089523fb6b0340746abf4b Mon Sep 17 00:00:00 2001
From: Bradley Bell <btb@icculus.org>
Date: Tue, 7 Jan 2003 03:10:20 +0000
Subject: [PATCH] don't need .msn file for descent.hog anymore

---
 Makefile.am      |   2 -
 descent.msn      |  36 ---------------
 installation.txt |   6 +--
 main/mission.c   | 115 +++++++++++++++++++++++++++++++++++++++++++++--
 main/mission.h   |   8 +++-
 5 files changed, 121 insertions(+), 46 deletions(-)
 delete mode 100755 descent.msn

diff --git a/Makefile.am b/Makefile.am
index 091dd4b5..cd3389af 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -50,8 +50,6 @@ changelog::
 pkgdatadir = @sharepath@
 missiondir = ${pkgdatadir}/missions
 
-dist_mission_DATA = descent.msn
-
 EXTRA_DIST = ${EXTRA_SUBDIRS} \
 ChangeLog \
 djgpp.bat djgpp.sh \
diff --git a/descent.msn b/descent.msn
deleted file mode 100755
index 5c3a6acb..00000000
--- a/descent.msn
+++ /dev/null
@@ -1,36 +0,0 @@
-name = Descent: First Strike
-type = normal
-briefing = briefing.txb
-num_levels = 27
-level01.rdl
-level02.rdl
-level03.rdl
-level04.rdl
-level05.rdl
-level06.rdl
-level07.rdl
-level08.rdl
-level09.rdl
-level10.rdl
-level11.rdl
-level12.rdl
-level13.rdl
-level14.rdl
-level15.rdl
-level16.rdl
-level17.rdl
-level18.rdl
-level19.rdl
-level20.rdl
-level21.rdl
-level22.rdl
-level23.rdl
-level24.rdl
-level25.rdl
-level26.rdl
-level27.rdl
-num_secrets = 3
-levels1.rdl
-levels2.rdl
-levels3.rdl
-ending = endreg.txb
diff --git a/installation.txt b/installation.txt
index 8c8ad8eb..a4a6b466 100644
--- a/installation.txt
+++ b/installation.txt
@@ -61,10 +61,8 @@ To install an additional mission, just place the .hog and the .msn or
 inside the system-wide data dir, or your $HOME/.d2x dir.  d2x will
 look in both places.
 
-To install the mission from Descent 1:
-Place these files into your missions directory:
-descent.hog
-descent.msn (distributed with d2x)
+To install the original Descent 1 mission:
+Place descent.hog into your data dir.
 
 
 Vertigo Installation
diff --git a/main/mission.c b/main/mission.c
index f044861e..915a4610 100644
--- a/main/mission.c
+++ b/main/mission.c
@@ -1,4 +1,4 @@
-/* $Id: mission.c,v 1.16 2003-01-06 23:06:18 btb Exp $ */
+/* $Id: mission.c,v 1.17 2003-01-07 03:10:20 btb Exp $ */
 /*
 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
@@ -136,13 +136,18 @@ COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
 
 mle Mission_list[MAX_MISSIONS];
 
-int Current_mission_num, Builtin_mission_num;
-int	N_secret_levels;		//	Made a global by MK for scoring purposes.  August 1, 1995.
+int Current_mission_num;
+int N_secret_levels;    // Made a global by MK for scoring purposes.  August 1, 1995.
 char *Current_mission_filename,*Current_mission_longname;
 
+int Builtin_mission_num;
 char Builtin_mission_filename[9];
 int Builtin_mission_hogsize;
 
+int D1_Builtin_mission_num;
+char D1_Builtin_mission_filename[9];
+int D1_Builtin_mission_hogsize;
+
 //this stuff should get defined elsewhere
 
 char Level_names[MAX_LEVELS_PER_MISSION][FILENAME_LEN];
@@ -155,6 +160,65 @@ char Secret_level_names[MAX_SECRET_LEVELS_PER_MISSION][FILENAME_LEN];
 #define MISSION_DIR "./"
 #endif
 
+//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"
+
+//
+//  Special versions of mission routines for d1 builtins
+//
+
+int load_mission_d1(int mission_num)
+{
+	int i;
+
+	cfile_use_descent1_hogfile("descent.hog");
+
+	Current_mission_num = mission_num;
+	Current_mission_filename = Mission_list[mission_num].filename;
+	Current_mission_longname = Mission_list[mission_num].mission_name;
+
+	switch (D1_Builtin_mission_hogsize) {
+	case D1_SHAREWARE_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;
+	default:
+		Int3(); // fall through
+	case D1_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
 //
@@ -378,6 +442,37 @@ int read_mission_file(char *filename,int count,int location)
 	return 0;
 }
 
+void add_d1_builtin_mission_to_list(int *count)
+{
+	if (!cfexist("descent.hog"))
+		return;
+
+	D1_Builtin_mission_hogsize = cfile_size("descent.hog");
+
+	switch (D1_Builtin_mission_hogsize) {
+	default:
+		Warning("Unknown D1 hogsize %d\n", D1_Builtin_mission_hogsize);
+		Int3();
+		// fall through
+	case D1_SHAREWARE_MISSION_HOGSIZE:
+		strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
+		strcpy(Mission_list[*count].mission_name, D1_SHAREWARE_MISSION_NAME);
+		Mission_list[*count].anarchy_only_flag = 0;
+		break;
+	case D1_MISSION_HOGSIZE:
+		strcpy(Mission_list[*count].filename, D1_MISSION_FILENAME);
+		strcpy(Mission_list[*count].mission_name, D1_MISSION_NAME);
+		Mission_list[*count].anarchy_only_flag = 0;
+		break;
+	}
+
+	strcpy(D1_Builtin_mission_filename, Mission_list[*count].filename);
+	Mission_list[*count].descent_version = 1;
+	Mission_list[*count].anarchy_only_flag = 0;
+	++(*count);
+}
+
+
 void add_builtin_mission_to_list(int *count)
 {
 	Builtin_mission_hogsize = cfile_size("descent2.hog");
@@ -481,6 +576,7 @@ int build_mission_list(int anarchy_mode)
 //@@	}
 
 	add_builtin_mission_to_list(&count);  //read built-in first
+	add_d1_builtin_mission_to_list(&count);
 	add_missions_to_list(MISSION_DIR "*.mn2", &count, anarchy_mode);
 	add_missions_to_list(MISSION_DIR "*.msn", &count, anarchy_mode);
 
@@ -498,6 +594,7 @@ int build_mission_list(int anarchy_mode)
 	// to top of mission list
 	top_place = 0;
 	promote("descent", &top_place, count); // original descent 1 mission
+	D1_Builtin_mission_num = top_place - 1;
 	promote(Builtin_mission_filename, &top_place, count); // d2 or d2demo
 	Builtin_mission_num = top_place - 1;
 	promote("d2x", &top_place, count); // vertigo
@@ -536,6 +633,18 @@ int load_mission(int mission_num)
 	int found_hogfile;
 	int enhanced_mission = 0;
 
+	if (mission_num == D1_Builtin_mission_num) {
+		cfile_use_descent1_hogfile("descent.hog");
+		switch (D1_Builtin_mission_hogsize) {
+		case D1_MISSION_HOGSIZE:
+		case D1_SHAREWARE_MISSION_HOGSIZE:
+			return load_mission_d1(mission_num);
+			break;
+		default:
+			// continue on...
+		}
+	}
+
 	if (mission_num == Builtin_mission_num) {
 		switch (Builtin_mission_hogsize) {
 		case SHAREWARE_MISSION_HOGSIZE:
diff --git a/main/mission.h b/main/mission.h
index 98aed2d7..543cb85a 100644
--- a/main/mission.h
+++ b/main/mission.h
@@ -1,4 +1,4 @@
-/* $Id: mission.h,v 1.6 2003-01-06 23:10:19 btb Exp $ */
+/* $Id: mission.h,v 1.7 2003-01-07 03:10:20 btb Exp $ */
 /*
 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
@@ -56,6 +56,12 @@ COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
 #define MAX_SECRET_LEVELS_PER_MISSION   6
 #define MISSION_NAME_LEN                25
 
+#define D1_MISSION_FILENAME             "descent"
+#define D1_MISSION_NAME                 "Descent: First Strike"
+#define D1_MISSION_HOGSIZE              6856701
+#define D1_SHAREWARE_MISSION_NAME       "Descent Demo"
+#define D1_SHAREWARE_MISSION_HOGSIZE    2339773
+
 #define SHAREWARE_MISSION_FILENAME  "d2demo"
 #define SHAREWARE_MISSION_NAME      "Descent 2 Demo"
 #define SHAREWARE_MISSION_HOGSIZE   2292566
-- 
2.39.2