/*
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.
*/

#pragma off (unreferenced)
static char rcsid[] = "$Id: gamemine.c 2.21 1996/05/07 16:09:17 jeremy Exp $";
#pragma on (unreferenced)

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>

#include "mono.h"

#include "inferno.h"
#include "segment.h"
#include "textures.h"
#include "wall.h"
#include "object.h"
#include "gamemine.h"
#include "error.h"
#include "gameseg.h"
#include "switch.h"

#include "game.h"
#include "newmenu.h"

#ifdef EDITOR
#include "editor\editor.h"
#endif

#include "cfile.h"		
#include "fuelcen.h"

#include "hash.h"
#include "key.h"
#include "piggy.h"

#include "byteswap.h"

#define REMOVE_EXT(s)  (*(strchr( (s), '.' ))='\0')

fix	Level_shake_frequency = 0, Level_shake_duration = 0;
int	Secret_return_segment = 0;
vms_matrix	Secret_return_orient;

struct mtfi mine_top_fileinfo;    // Should be same as first two fields below...
struct mfi mine_fileinfo;
struct mh mine_header;
struct me mine_editor;

typedef struct v16_segment {
	#ifdef	EDITOR
	short		segnum;								// segment number, not sure what it means
	#endif
	side		sides[MAX_SIDES_PER_SEGMENT];	// 6 sides
	short		children[MAX_SIDES_PER_SEGMENT];	// indices of 6 children segments, front, left, top, right, bottom, back
	short		verts[MAX_VERTICES_PER_SEGMENT];	// vertex ids of 4 front and 4 back vertices
	#ifdef	EDITOR
	short		group;								// group number to which the segment belongs.
	#endif
	short		objects;								// pointer to objects in this segment
	ubyte		special;								// what type of center this is 
	byte		matcen_num;							//	which center segment is associated with.
	short		value;
	fix		static_light;						//average static light in segment
	#ifndef	EDITOR
	short		pad;			//make structure longword aligned
	#endif
} v16_segment;

struct mfi_v19 {
	ushort	fileinfo_signature;
	ushort	fileinfo_version;
	int		fileinfo_sizeof;
	int		header_offset;		// Stuff common to game & editor
	int		header_size;
	int		editor_offset;   // Editor specific stuff
	int		editor_size;
	int		segment_offset;
	int		segment_howmany;
	int		segment_sizeof;
	int		newseg_verts_offset;
	int		newseg_verts_howmany;
	int		newseg_verts_sizeof;
	int		group_offset;
	int		group_howmany;
	int		group_sizeof;
	int		vertex_offset;
	int		vertex_howmany;
	int		vertex_sizeof;
	int		texture_offset;
	int		texture_howmany;
	int		texture_sizeof;
	int		walls_offset;
	int		walls_howmany;
	int		walls_sizeof;
	int		triggers_offset;
	int		triggers_howmany;
	int		triggers_sizeof;
	int		links_offset;
	int		links_howmany;
	int		links_sizeof;
	int		object_offset;				// Object info
	int	  	object_howmany;    	
	int	  	object_sizeof;  
	int	  	unused_offset;			//was: doors_offset
	int		unused_howmamy;		//was: doors_howmany
	int		unused_sizeof;			//was: doors_sizeof
	short		level_shake_frequency, level_shake_duration;	//	Shakes every level_shake_frequency seconds
																			// for level_shake_duration seconds (on average, random).  In 16ths second.
	int		secret_return_segment;
	vms_matrix	secret_return_orient;

	int		dl_indices_offset;
	int		dl_indices_howmany;
	int		dl_indices_sizeof;

	int		delta_light_offset;
	int		delta_light_howmany;
	int		delta_light_sizeof;

};

int CreateDefaultNewSegment();

// hmm.. moved here by allender from gamesave.c -- We should really put these
// routines into the cfile library (i.e. cfile_read_int, etc....)
// This is yet another quick and dirty hack....yeech

static fix read_fix(CFILE *file)
{
	fix f;

	if (cfread( &f, sizeof(f), 1, file) != 1)
		Error( "Error reading fix in gamesave.c" );

	f = (fix)INTEL_INT((int)f);
	return f;
}

static void read_vector(vms_vector *v,CFILE *file)
{
	v->x = read_fix(file);
	v->y = read_fix(file);
	v->z = read_fix(file);
}

static short read_short(CFILE *file)
{
	short s;

	if (cfread( &s, sizeof(s), 1, file) != 1)
		Error( "Error reading short in gamesave.c" );

	s = INTEL_SHORT(s);
	return s;
}

static byte read_byte(CFILE *file)
{
	byte b;

	if (cfread( &b, sizeof(b), 1, file) != 1)
		Error( "Error reading byte in gamesave.c" );

	return b;
}

#ifdef EDITOR

static char old_tmap_list[MAX_TEXTURES][FILENAME_LEN];
short tmap_xlate_table[MAX_TEXTURES];
static short tmap_times_used[MAX_TEXTURES];

// -----------------------------------------------------------------------------
//loads from an already-open file
// returns 0=everything ok, 1=old version, -1=error
int load_mine_data(CFILE *LoadFile)
{
	int   i, j,oldsizeadjust;
	short tmap_xlate;
	int 	translate;
	char 	*temptr;
	int	mine_start = cftell(LoadFile);

	oldsizeadjust=(sizeof(int)*2)+sizeof (vms_matrix);
	fuelcen_reset();

	for (i=0; i<MAX_TEXTURES; i++ )
		tmap_times_used[i] = 0;
	
	#ifdef EDITOR
	// Create a new mine to initialize things.
	//texpage_goto_first();
	create_new_mine();
	#endif

	//===================== READ FILE INFO ========================

	// These are the default values... version and fileinfo_sizeof
	// don't have defaults.
	mine_fileinfo.header_offset     =   -1;
	mine_fileinfo.header_size       =   sizeof(mine_header);
	mine_fileinfo.editor_offset     =   -1;
	mine_fileinfo.editor_size       =   sizeof(mine_editor);
	mine_fileinfo.vertex_offset     =   -1;
	mine_fileinfo.vertex_howmany    =   0;
	mine_fileinfo.vertex_sizeof     =   sizeof(vms_vector);
	mine_fileinfo.segment_offset    =   -1;
	mine_fileinfo.segment_howmany   =   0;
	mine_fileinfo.segment_sizeof    =   sizeof(segment);
	mine_fileinfo.newseg_verts_offset     =   -1;
	mine_fileinfo.newseg_verts_howmany    =   0;
	mine_fileinfo.newseg_verts_sizeof     =   sizeof(vms_vector);
	mine_fileinfo.group_offset		  =	-1;
	mine_fileinfo.group_howmany	  =	0;
	mine_fileinfo.group_sizeof		  =	sizeof(group);
	mine_fileinfo.texture_offset    =   -1;
	mine_fileinfo.texture_howmany   =   0;
 	mine_fileinfo.texture_sizeof    =   FILENAME_LEN;  // num characters in a name
 	mine_fileinfo.walls_offset		  =	-1;
	mine_fileinfo.walls_howmany	  =	0;
	mine_fileinfo.walls_sizeof		  =	sizeof(wall);  
 	mine_fileinfo.triggers_offset	  =	-1;
	mine_fileinfo.triggers_howmany  =	0;
	mine_fileinfo.triggers_sizeof	  =	sizeof(trigger);  
	mine_fileinfo.object_offset		=	-1;
	mine_fileinfo.object_howmany		=	1;
	mine_fileinfo.object_sizeof		=	sizeof(object);  

	mine_fileinfo.level_shake_frequency		=	0;
	mine_fileinfo.level_shake_duration		=	0;

	//	Delta light stuff for blowing out light sources.
//	if (mine_top_fileinfo.fileinfo_version >= 19) {
		mine_fileinfo.dl_indices_offset		=	-1;
		mine_fileinfo.dl_indices_howmany		=	0;
		mine_fileinfo.dl_indices_sizeof		=	sizeof(dl_index);  

		mine_fileinfo.delta_light_offset		=	-1;
		mine_fileinfo.delta_light_howmany		=	0;
		mine_fileinfo.delta_light_sizeof		=	sizeof(delta_light);  

//	}

	mine_fileinfo.segment2_offset		= -1;
	mine_fileinfo.segment2_howmany	= 0;
	mine_fileinfo.segment2_sizeof    = sizeof(segment2);

	// Read in mine_top_fileinfo to get size of saved fileinfo.
	
	memset( &mine_top_fileinfo, 0, sizeof(mine_top_fileinfo) );

	if (cfseek( LoadFile, mine_start, SEEK_SET ))
		Error( "Error moving to top of file in gamemine.c" );

	if (cfread( &mine_top_fileinfo, sizeof(mine_top_fileinfo), 1, LoadFile )!=1)
		Error( "Error reading mine_top_fileinfo in gamemine.c" );

	if (mine_top_fileinfo.fileinfo_signature != 0x2884)
		return -1;

	// Check version number
	if (mine_top_fileinfo.fileinfo_version < COMPATIBLE_VERSION )
		return -1;

	// Now, Read in the fileinfo
	if (cfseek( LoadFile, mine_start, SEEK_SET ))
		Error( "Error seeking to top of file in gamemine.c" );

	if (cfread( &mine_fileinfo, mine_top_fileinfo.fileinfo_sizeof, 1, LoadFile )!=1)
		Error( "Error reading mine_fileinfo in gamemine.c" );

	if (mine_top_fileinfo.fileinfo_version < 18) {
		mprintf((1, "Old version, setting shake intensity to 0.\n"));
		Level_shake_frequency = 0;
		Level_shake_duration = 0;
		Secret_return_segment = 0;
		Secret_return_orient = vmd_identity_matrix;
	} else {
		Level_shake_frequency = mine_fileinfo.level_shake_frequency << 12;
		Level_shake_duration = mine_fileinfo.level_shake_duration << 12;
		Secret_return_segment = mine_fileinfo.secret_return_segment;
		Secret_return_orient = mine_fileinfo.secret_return_orient;
	}

	//===================== READ HEADER INFO ========================

	// Set default values.
	mine_header.num_vertices        =   0;
	mine_header.num_segments        =   0;

	if (mine_fileinfo.header_offset > -1 )
	{
		if (cfseek( LoadFile, mine_fileinfo.header_offset, SEEK_SET ))
			Error( "Error seeking to header_offset in gamemine.c" );
	
		if (cfread( &mine_header, mine_fileinfo.header_size, 1, LoadFile )!=1)
			Error( "Error reading mine_header in gamemine.c" );
	}

	//===================== READ EDITOR INFO ==========================

	// Set default values
	mine_editor.current_seg         =   0;
	mine_editor.newsegment_offset   =   -1; // To be written
	mine_editor.newsegment_size     =   sizeof(segment);
	mine_editor.Curside             =   0;
	mine_editor.Markedsegp          =   -1;
	mine_editor.Markedside          =   0;

	if (mine_fileinfo.editor_offset > -1 )
	{
		if (cfseek( LoadFile, mine_fileinfo.editor_offset, SEEK_SET ))
			Error( "Error seeking to editor_offset in gamemine.c" );
	
		if (cfread( &mine_editor, mine_fileinfo.editor_size, 1, LoadFile )!=1)
			Error( "Error reading mine_editor in gamemine.c" );
	}

	//===================== READ TEXTURE INFO ==========================

	if ( (mine_fileinfo.texture_offset > -1) && (mine_fileinfo.texture_howmany > 0))
	{
		if (cfseek( LoadFile, mine_fileinfo.texture_offset, SEEK_SET ))
			Error( "Error seeking to texture_offset in gamemine.c" );

		for (i=0; i< mine_fileinfo.texture_howmany; i++ )
		{
			if (cfread( &old_tmap_list[i], mine_fileinfo.texture_sizeof, 1, LoadFile )!=1)
				Error( "Error reading old_tmap_list[i] in gamemine.c" );
		}
	}

	//=============== GENERATE TEXTURE TRANSLATION TABLE ===============

	translate = 0;
	
	Assert (NumTextures < MAX_TEXTURES);

	{
		hashtable ht;
	
		hashtable_init( &ht, NumTextures );
	
		// Remove all the file extensions in the textures list
	
		for (i=0;i<NumTextures;i++)	{
			temptr = strchr(TmapInfo[i].filename, '.');
			if (temptr) *temptr = '\0';
			hashtable_insert( &ht, TmapInfo[i].filename, i );
		}
	
		// For every texture, search through the texture list
		// to find a matching name.
		for (j=0;j<mine_fileinfo.texture_howmany;j++) 	{
			// Remove this texture name's extension
			temptr = strchr(old_tmap_list[j], '.');
			if (temptr) *temptr = '\0';
	
			tmap_xlate_table[j] = hashtable_search( &ht,old_tmap_list[j]);
			if (tmap_xlate_table[j]	< 0 )	{
				//tmap_xlate_table[j] = 0;
				// mprintf( (0, "Couldn't find texture '%s'\n", old_tmap_list[j] ));
				;
			}
			if (tmap_xlate_table[j] != j ) translate = 1;
			if (tmap_xlate_table[j] >= 0)
				tmap_times_used[tmap_xlate_table[j]]++;
		}
	
		{
			int count = 0;
			for (i=0; i<MAX_TEXTURES; i++ )
				if (tmap_times_used[i])
					count++;
			mprintf( (0, "This mine has %d unique textures in it (~%d KB)\n", count, (count*4096) /1024 ));
		}
	
		// -- mprintf( (0, "Translate=%d\n", translate ));
	
		hashtable_free( &ht );
	}

	//====================== READ VERTEX INFO ==========================

	// New check added to make sure we don't read in too many vertices.
	if ( mine_fileinfo.vertex_howmany > MAX_VERTICES )
		{
		mprintf((0, "Num vertices exceeds maximum.  Loading MAX %d vertices\n", MAX_VERTICES));
		mine_fileinfo.vertex_howmany = MAX_VERTICES;
		}

	if ( (mine_fileinfo.vertex_offset > -1) && (mine_fileinfo.vertex_howmany > 0))
	{
		if (cfseek( LoadFile, mine_fileinfo.vertex_offset, SEEK_SET ))
			Error( "Error seeking to vertex_offset in gamemine.c" );

		for (i=0; i< mine_fileinfo.vertex_howmany; i++ )
		{
			// Set the default values for this vertex
			Vertices[i].x = 1;
			Vertices[i].y = 1;
			Vertices[i].z = 1;

			if (cfread( &Vertices[i], mine_fileinfo.vertex_sizeof, 1, LoadFile )!=1)
				Error( "Error reading Vertices[i] in gamemine.c" );
		}
	}

	//==================== READ SEGMENT INFO ===========================

	// New check added to make sure we don't read in too many segments.
	if ( mine_fileinfo.segment_howmany > MAX_SEGMENTS ) {
		mprintf((0, "Num segments exceeds maximum.  Loading MAX %d segments\n", MAX_SEGMENTS));
		mine_fileinfo.segment_howmany = MAX_SEGMENTS;
		mine_fileinfo.segment2_howmany = MAX_SEGMENTS;
	}

	// [commented out by mk on 11/20/94 (weren't we supposed to hit final in October?) because it looks redundant.  I think I'll test it now...]  fuelcen_reset();

	if ( (mine_fileinfo.segment_offset > -1) && (mine_fileinfo.segment_howmany > 0))	{

		if (cfseek( LoadFile, mine_fileinfo.segment_offset,SEEK_SET ))

			Error( "Error seeking to segment_offset in gamemine.c" );

		Highest_segment_index = mine_fileinfo.segment_howmany-1;

		for (i=0; i< mine_fileinfo.segment_howmany; i++ ) {

			// Set the default values for this segment (clear to zero )
			//memset( &Segments[i], 0, sizeof(segment) );

			if (mine_top_fileinfo.fileinfo_version < 20) {
				v16_segment v16_seg;

				Assert(mine_fileinfo.segment_sizeof == sizeof(v16_seg));

				if (cfread( &v16_seg, mine_fileinfo.segment_sizeof, 1, LoadFile )!=1)
					Error( "Error reading segments in gamemine.c" );

				#ifdef EDITOR
				Segments[i].segnum = v16_seg.segnum;
				// -- Segments[i].pad = v16_seg.pad;
				#endif

				for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
					Segments[i].sides[j] = v16_seg.sides[j];

				for (j=0; j<MAX_SIDES_PER_SEGMENT; j++)
					Segments[i].children[j] = v16_seg.children[j];

				for (j=0; j<MAX_VERTICES_PER_SEGMENT; j++)
					Segments[i].verts[j] = v16_seg.verts[j];

				Segment2s[i].special = v16_seg.special;
				Segment2s[i].value = v16_seg.value;
				Segment2s[i].s2_flags = 0;
				Segment2s[i].matcen_num = v16_seg.matcen_num;
				Segment2s[i].static_light = v16_seg.static_light;
				fuelcen_activate( &Segments[i], Segment2s[i].special );

			} else  {
				if (cfread( &Segments[i], mine_fileinfo.segment_sizeof, 1, LoadFile )!=1)
					Error("Unable to read segment %i\n", i);
			}

			Segments[i].objects = -1;
			#ifdef EDITOR
			Segments[i].group = -1;
			#endif

			if (mine_top_fileinfo.fileinfo_version < 15) {	//used old uvl ranges
				int sn,uvln;

				for (sn=0;sn<MAX_SIDES_PER_SEGMENT;sn++)
					for (uvln=0;uvln<4;uvln++) {
						Segments[i].sides[sn].uvls[uvln].u /= 64;
						Segments[i].sides[sn].uvls[uvln].v /= 64;
						Segments[i].sides[sn].uvls[uvln].l /= 32;
					}
			}

			if (translate == 1)
				for (j=0;j<MAX_SIDES_PER_SEGMENT;j++) {
					unsigned short orient;
					tmap_xlate = Segments[i].sides[j].tmap_num;
					Segments[i].sides[j].tmap_num = tmap_xlate_table[tmap_xlate];
					if ((WALL_IS_DOORWAY(&Segments[i],j) & WID_RENDER_FLAG))
						if (Segments[i].sides[j].tmap_num < 0)	{
							mprintf( (0, "Couldn't find texture '%s' for Segment %d, side %d\n", old_tmap_list[tmap_xlate],i,j));
							Int3();
							Segments[i].sides[j].tmap_num = NumTextures-1;
						}
					tmap_xlate = Segments[i].sides[j].tmap_num2 & 0x3FFF;
					orient = Segments[i].sides[j].tmap_num2 & (~0x3FFF);
					if (tmap_xlate != 0) {
						int xlated_tmap = tmap_xlate_table[tmap_xlate];

						if ((WALL_IS_DOORWAY(&Segments[i],j) & WID_RENDER_FLAG))
							if (xlated_tmap <= 0)	{
								mprintf( (0, "Couldn't find texture '%s' for Segment %d, side %d\n", old_tmap_list[tmap_xlate],i,j));
								Int3();
								Segments[i].sides[j].tmap_num2 = NumTextures-1;
							}
						Segments[i].sides[j].tmap_num2 = xlated_tmap | orient;
					}
				}
		}


		if (mine_top_fileinfo.fileinfo_version >= 20)
			for (i=0; i<=Highest_segment_index; i++) {
				cfread(&Segment2s[i], sizeof(segment2), 1, LoadFile);
				fuelcen_activate( &Segments[i], Segment2s[i].special );
			}
	}

	//===================== READ NEWSEGMENT INFO =====================

	#ifdef EDITOR

	{		// Default segment created.
		vms_vector	sizevec;
		med_create_new_segment(vm_vec_make(&sizevec,DEFAULT_X_SIZE,DEFAULT_Y_SIZE,DEFAULT_Z_SIZE));		// New_segment = Segments[0];
		//memset( &New_segment, 0, sizeof(segment) );
	}

	if (mine_editor.newsegment_offset > -1)
	{
		if (cfseek( LoadFile, mine_editor.newsegment_offset,SEEK_SET ))
			Error( "Error seeking to newsegment_offset in gamemine.c" );
		if (cfread( &New_segment, mine_editor.newsegment_size,1,LoadFile )!=1)
			Error( "Error reading new_segment in gamemine.c" );
	}

	if ( (mine_fileinfo.newseg_verts_offset > -1) && (mine_fileinfo.newseg_verts_howmany > 0))
	{
		if (cfseek( LoadFile, mine_fileinfo.newseg_verts_offset, SEEK_SET ))
			Error( "Error seeking to newseg_verts_offset in gamemine.c" );
		for (i=0; i< mine_fileinfo.newseg_verts_howmany; i++ )
		{
			// Set the default values for this vertex
			Vertices[NEW_SEGMENT_VERTICES+i].x = 1;
			Vertices[NEW_SEGMENT_VERTICES+i].y = 1;
			Vertices[NEW_SEGMENT_VERTICES+i].z = 1;
			
			if (cfread( &Vertices[NEW_SEGMENT_VERTICES+i], mine_fileinfo.newseg_verts_sizeof,1,LoadFile )!=1)
				Error( "Error reading Vertices[NEW_SEGMENT_VERTICES+i] in gamemine.c" );

			New_segment.verts[i] = NEW_SEGMENT_VERTICES+i;
		}
	}

	#endif
															
	//========================= UPDATE VARIABLES ======================

	#ifdef EDITOR

	// Setting to Markedsegp to NULL ignores Curside and Markedside, which
	// we want to do when reading in an old file.
	
 	Markedside = mine_editor.Markedside;
	Curside = mine_editor.Curside;
	for (i=0;i<10;i++)
		Groupside[i] = mine_editor.Groupside[i];

	if ( mine_editor.current_seg != -1 )
		Cursegp = mine_editor.current_seg + Segments;
	else
 		Cursegp = NULL;

	if (mine_editor.Markedsegp != -1 ) 
		Markedsegp = mine_editor.Markedsegp + Segments;
	else
		Markedsegp = NULL;

	num_groups = 0;
	current_group = -1;

	#endif

	Num_vertices = mine_fileinfo.vertex_howmany;
	Num_segments = mine_fileinfo.segment_howmany;
	Highest_vertex_index = Num_vertices-1;
	Highest_segment_index = Num_segments-1;

	reset_objects(1);		//one object, the player

	#ifdef EDITOR
	Highest_vertex_index = MAX_SEGMENT_VERTICES-1;
	Highest_segment_index = MAX_SEGMENTS-1;
	set_vertex_counts();
	Highest_vertex_index = Num_vertices-1;
	Highest_segment_index = Num_segments-1;

	warn_if_concave_segments();
	#endif

	#ifdef EDITOR
		validate_segment_all();
	#endif

	//create_local_segment_data();

	//gamemine_find_textures();

	if (mine_top_fileinfo.fileinfo_version < MINE_VERSION )
		return 1;		//old version
	else
		return 0;

}
#endif

#define COMPILED_MINE_VERSION 0

void read_children(int segnum,ubyte bit_mask,CFILE *LoadFile)
{
	int bit;

	for (bit=0; bit<MAX_SIDES_PER_SEGMENT; bit++) {
		if (bit_mask & (1 << bit)) {
			Segments[segnum].children[bit] = read_short(LoadFile);
//	 		cfread( &Segments[segnum].children[bit], sizeof(short), 1, LoadFile );
		} else
			Segments[segnum].children[bit] = -1;
	}
}

void read_verts(int segnum,CFILE *LoadFile)
{
	int i;
	// Read short Segments[segnum].verts[MAX_VERTICES_PER_SEGMENT]
//	cfread( Segments[segnum].verts, sizeof(short), MAX_VERTICES_PER_SEGMENT, LoadFile );
	for (i = 0; i < MAX_VERTICES_PER_SEGMENT; i++)
		Segments[segnum].verts[i] = read_short(LoadFile);
}

// -- void read_special(int segnum,ubyte bit_mask,CFILE *LoadFile)
// -- {
// -- 	if (bit_mask & (1 << MAX_SIDES_PER_SEGMENT)) {
// -- 		// Read ubyte	Segments[segnum].special
// -- //		cfread( &Segments[segnum].special, sizeof(ubyte), 1, LoadFile );
// -- 		Segment2s[segnum].special = read_byte(LoadFile);
// -- 		// Read byte	Segments[segnum].matcen_num
// -- //		cfread( &Segments[segnum].matcen_num, sizeof(ubyte), 1, LoadFile );
// -- 		Segment2s[segnum].matcen_num = read_byte(LoadFile);
// -- 		// Read short	Segments[segnum].value
// -- //		cfread( &Segments[segnum].value, sizeof(short), 1, LoadFile );
// -- 		Segment2s[segnum].value = read_short(LoadFile);
// -- 	} else {
// -- 		Segment2s[segnum].special = 0;
// -- 		Segment2s[segnum].matcen_num = -1;
// -- 		Segment2s[segnum].value = 0;
// -- 	}
// -- }

int load_mine_data_compiled(CFILE *LoadFile)
{
	int		i,segnum,sidenum;
	ubyte		version;
	short		temp_short;
	ushort	temp_ushort;
	ubyte		bit_mask;

	//	For compiled levels, textures map to themselves, prevent tmap_override always being gray,
	//	bug which Matt and John refused to acknowledge, so here is Mike, fixing it.
#ifdef EDITOR
	for (i=0; i<MAX_TEXTURES; i++)
		tmap_xlate_table[i] = i;
#endif

//	memset( Segments, 0, sizeof(segment)*MAX_SEGMENTS );
	fuelcen_reset();

	//=============================== Reading part ==============================
//	cfread( &version, sizeof(ubyte), 1, LoadFile );						// 1 byte = compiled version
	version = read_byte(LoadFile);
	Assert( version==COMPILED_MINE_VERSION );

//	cfread( &temp_ushort, sizeof(ushort), 1, LoadFile );					// 2 bytes = Num_vertices
//	Num_vertices = temp_ushort;
	Num_vertices = read_short(LoadFile);
	Assert( Num_vertices <= MAX_VERTICES );

//	cfread( &temp_ushort, sizeof(ushort), 1, LoadFile );					// 2 bytes = Num_segments
//	Num_segments = INTEL_SHORT(temp_ushort);
	Num_segments = read_short(LoadFile);
	Assert( Num_segments <= MAX_SEGMENTS );

//	cfread( Vertices, sizeof(vms_vector), Num_vertices, LoadFile );

	for (i = 0; i < Num_vertices; i++)
		read_vector( &(Vertices[i]), LoadFile);

	for (segnum=0; segnum<Num_segments; segnum++ )	{

		#ifdef EDITOR
		Segments[segnum].segnum = segnum;
		Segments[segnum].group = 0;
		#endif

 		cfread( &bit_mask, sizeof(ubyte), 1, LoadFile );

		#if defined(SHAREWARE) && !defined(MACINTOSH)
			// -- read_special(segnum,bit_mask,LoadFile);
			read_verts(segnum,LoadFile);
			read_children(segnum,bit_mask,LoadFile);
		#else
			read_children(segnum,bit_mask,LoadFile);
			read_verts(segnum,LoadFile);
			// --read_special(segnum,bit_mask,LoadFile);
		#endif

		Segments[segnum].objects = -1;

		// Read fix	Segments[segnum].static_light (shift down 5 bits, write as short)
//		cfread( &temp_ushort, sizeof(temp_ushort), 1, LoadFile );
//		temp_ushort = read_short(LoadFile);
//		Segment2s[segnum].static_light	= ((fix)temp_ushort) << 4;
		//cfread( &Segments[segnum].static_light, sizeof(fix), 1, LoadFile );
	
		// Read the walls as a 6 byte array
		for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++ )	{
			Segments[segnum].sides[sidenum].pad = 0;
		}

 		cfread( &bit_mask, sizeof(ubyte), 1, LoadFile );
		for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++) {
			ubyte byte_wallnum;

			if (bit_mask & (1 << sidenum)) {
				cfread( &byte_wallnum, sizeof(ubyte), 1, LoadFile );
				if ( byte_wallnum == 255 )			
					Segments[segnum].sides[sidenum].wall_num = -1;
				else		
					Segments[segnum].sides[sidenum].wall_num = byte_wallnum;
			} else
					Segments[segnum].sides[sidenum].wall_num = -1;
		}

		for (sidenum=0; sidenum<MAX_SIDES_PER_SEGMENT; sidenum++ )	{

			if ( (Segments[segnum].children[sidenum]==-1) || (Segments[segnum].sides[sidenum].wall_num!=-1) )	{
				// Read short Segments[segnum].sides[sidenum].tmap_num;
//				cfread( &temp_ushort, sizeof(ushort), 1, LoadFile );
				temp_ushort = read_short(LoadFile);
				Segments[segnum].sides[sidenum].tmap_num = temp_ushort & 0x7fff;

				if (!(temp_ushort & 0x8000))
					Segments[segnum].sides[sidenum].tmap_num2 = 0;
				else {
					// Read short Segments[segnum].sides[sidenum].tmap_num2;
//					cfread( &Segments[segnum].sides[sidenum].tmap_num2, sizeof(short), 1, LoadFile );
					Segments[segnum].sides[sidenum].tmap_num2 = read_short(LoadFile);
				}

				// Read uvl Segments[segnum].sides[sidenum].uvls[4] (u,v>>5, write as short, l>>1 write as short)
				for (i=0; i<4; i++ )	{
//					cfread( &temp_short, sizeof(short), 1, LoadFile );
					temp_short = read_short(LoadFile);
					Segments[segnum].sides[sidenum].uvls[i].u = ((fix)temp_short) << 5;
//					cfread( &temp_short, sizeof(short), 1, LoadFile );
					temp_short = read_short(LoadFile);
					Segments[segnum].sides[sidenum].uvls[i].v = ((fix)temp_short) << 5;
//					cfread( &temp_ushort, sizeof(temp_ushort), 1, LoadFile );
					temp_ushort = read_short(LoadFile);
					Segments[segnum].sides[sidenum].uvls[i].l = ((fix)temp_ushort) << 1;
					//cfread( &Segments[segnum].sides[sidenum].uvls[i].l, sizeof(fix), 1, LoadFile );
				}	
			} else {
				Segments[segnum].sides[sidenum].tmap_num = 0;
				Segments[segnum].sides[sidenum].tmap_num2 = 0;
				for (i=0; i<4; i++ )	{
					Segments[segnum].sides[sidenum].uvls[i].u = 0;
					Segments[segnum].sides[sidenum].uvls[i].v = 0;
					Segments[segnum].sides[sidenum].uvls[i].l = 0;
				}	
			}
		}
	}

#if 0	
	{
		FILE *fp;
		
		fp = fopen("segments.out", "wt");
		for (i = 0; i <= Highest_segment_index; i++) {

	side		sides[MAX_SIDES_PER_SEGMENT];	// 6 sides
	short		children[MAX_SIDES_PER_SEGMENT];	// indices of 6 children segments, front, left, top, right, bottom, back
	short		verts[MAX_VERTICES_PER_SEGMENT];	// vertex ids of 4 front and 4 back vertices
	int		objects;								// pointer to objects in this segment

			for (j = 0; j < MAX_SIDES_PER_SEGMENT; j++) {
	byte		type;									// replaces num_faces and tri_edge, 1 = quad, 2 = 0:2 triangulation, 3 = 1:3 triangulation
	ubyte		pad;									//keep us longword alligned
	short		wall_num;
	short		tmap_num;
	short		tmap_num2;
	uvl		uvls[4];
	vms_vector	normals[2];						// 2 normals, if quadrilateral, both the same.
				fprintf(fp, "%d\n", Segments[i].sides[j].type;
				fprintf(fp, "%d\n", Segments[i].sides[j].pad;
				fprintf(fp, "%d\n", Segments[i].sides[j].wall_num;
				fprintf(fp, "%d\n", Segments[i].tmap_num
			
		}
		fclose(fp);
	}
#endif	

	Highest_vertex_index = Num_vertices-1;
	Highest_segment_index = Num_segments-1;

	validate_segment_all();			// Fill in side type and normals.

// MIKE!!!!! You should know better than this when the mac is involved!!!!!!

	for (i=0; i<Num_segments; i++) {
// NO NO!!!!		cfread( &Segment2s[i], sizeof(segment2), 1, LoadFile );
		Segment2s[i].special = read_byte(LoadFile);
		Segment2s[i].matcen_num = read_byte(LoadFile);
		Segment2s[i].value = read_byte(LoadFile);
		Segment2s[i].s2_flags = read_byte(LoadFile);
		Segment2s[i].static_light = read_fix(LoadFile);
		fuelcen_activate( &Segments[i], Segment2s[i].special );
	}

	reset_objects(1);		//one object, the player

	return 0;
}