build.h

game duke3d source

//-------------------------------------------------------------------------
/*
Copyright (C) 1996, 2003 - 3D Realms Entertainment

This file is part of Duke Nukem 3D version 1.5 - Atomic Edition

Duke Nukem 3D is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

Original Source: 1996 - Todd Replogle
Prepared for public release: 03/21/2003 - Charlie Wiederhold, 3D Realms
*/
//-------------------------------------------------------------------------

#define MAXSECTORS 1024
#define MAXWALLS 8192
#define MAXSPRITES 4096

#define MAXTILES 6144
#define MAXSTATUS 1024
#define MAXPLAYERS 16
#define MAXXDIM 1600
#define MAXYDIM 1200
#define MAXPALOOKUPS 256
#define MAXPSKYTILES 256
#define MAXSPRITESONSCREEN 1024

#define CLIPMASK0 (((1L)<<16)+1L)
#define CLIPMASK1 (((256L)<<16)+64L)

	//Make all variables in BUILD.H defined in the ENGINE,
	//and externed in GAME
#ifdef ENGINE
	#define EXTERN
#else
	#define EXTERN extern
#endif

//ceilingstat/floorstat:
//   bit 0: 1 = parallaxing, 0 = not                                 "P"
//   bit 1: 1 = groudraw, 0 = not
//   bit 2: 1 = swap x&y, 0 = not                                    "F"
//   bit 3: 1 = double smooshiness                                   "E"
//   bit 4: 1 = x-flip                                               "F"
//   bit 5: 1 = y-flip                                               "F"
//   bit 6: 1 = Align texture to first wall of sector                "R"
//   bits 7-15: reserved

	//40 bytes
typedef struct
{
	short wallptr, wallnum;
	long ceilingz, floorz;
	short ceilingstat, floorstat;
	short ceilingpicnum, ceilingheinum;
	signed char ceilingshade;
	char ceilingpal, ceilingxpanning, ceilingypanning;
	short floorpicnum, floorheinum;
	signed char floorshade;
	char floorpal, floorxpanning, floorypanning;
	char visibility, filler;
	short lotag, hitag, extra;
} sectortype;

//cstat:
//   bit 0: 1 = Blocking wall (use with clipmove, getzrange)         "B"
//   bit 1: 1 = bottoms of invisible walls swapped, 0 = not          "2"
//   bit 2: 1 = align picture on bottom (for doors), 0 = top         "O"
//   bit 3: 1 = x-flipped, 0 = normal                                "F"
//   bit 4: 1 = masking wall, 0 = not                                "M"
//   bit 5: 1 = 1-way wall, 0 = not                                  "1"
//   bit 6: 1 = Blocking wall (use with hitscan / cliptype 1)        "H"
//   bit 7: 1 = Transluscence, 0 = not                               "T"
//   bit 8: 1 = y-flipped, 0 = normal                                "F"
//   bit 9: 1 = Transluscence reversing, 0 = normal                  "T"
//   bits 10-15: reserved

	//32 bytes
typedef struct
{
	long x, y;
	short point2, nextwall, nextsector, cstat;
	short picnum, overpicnum;
	signed char shade;
	char pal, xrepeat, yrepeat, xpanning, ypanning;
	short lotag, hitag, extra;
} walltype;

//cstat:
//   bit 0: 1 = Blocking sprite (use with clipmove, getzrange)       "B"
//   bit 1: 1 = transluscence, 0 = normal                            "T"
//   bit 2: 1 = x-flipped, 0 = normal                                "F"
//   bit 3: 1 = y-flipped, 0 = normal                                "F"
//   bits 5-4: 00 = FACE sprite (default)                            "R"
//             01 = WALL sprite (like masked walls)
//             10 = FLOOR sprite (parallel to ceilings&floors)
//   bit 6: 1 = 1-sided sprite, 0 = normal                           "1"
//   bit 7: 1 = Real centered centering, 0 = foot center             "C"
//   bit 8: 1 = Blocking sprite (use with hitscan / cliptype 1)      "H"
//   bit 9: 1 = Transluscence reversing, 0 = normal                  "T"
//   bits 10-14: reserved
//   bit 15: 1 = Invisible sprite, 0 = not invisible

	//44 bytes
typedef struct
{
	long x, y, z;
	short cstat, picnum;
	signed char shade;
	char pal, clipdist, filler;
	unsigned char xrepeat, yrepeat;
	signed char xoffset, yoffset;
	short sectnum, statnum;
	short ang, owner, xvel, yvel, zvel;
	short lotag, hitag, extra;
} spritetype;

EXTERN sectortype sector[MAXSECTORS];
EXTERN walltype wall[MAXWALLS];
EXTERN spritetype sprite[MAXSPRITES];

EXTERN long spritesortcnt;
EXTERN spritetype tsprite[MAXSPRITESONSCREEN];

EXTERN char vidoption;
EXTERN long xdim, ydim, ylookup[MAXYDIM+1], numpages;
EXTERN long yxaspect, viewingrange;

EXTERN short numsectors, numwalls;
EXTERN volatile long totalclock;
EXTERN long numframes, randomseed;
EXTERN short sintable[2048];
EXTERN char palette[768];
EXTERN short numpalookups;
EXTERN char *palookup[MAXPALOOKUPS];
EXTERN char parallaxtype, showinvisibility;
EXTERN long parallaxyoffs, parallaxyscale;
EXTERN long visibility, parallaxvisibility;

EXTERN long windowx1, windowy1, windowx2, windowy2;
EXTERN short startumost[MAXXDIM], startdmost[MAXXDIM];

EXTERN short pskyoff[MAXPSKYTILES], pskybits;

EXTERN short headspritesect[MAXSECTORS+1], headspritestat[MAXSTATUS+1];
EXTERN short prevspritesect[MAXSPRITES], prevspritestat[MAXSPRITES];
EXTERN short nextspritesect[MAXSPRITES], nextspritestat[MAXSPRITES];

EXTERN short tilesizx[MAXTILES], tilesizy[MAXTILES];
EXTERN char walock[MAXTILES];
EXTERN long numtiles, picanm[MAXTILES], waloff[MAXTILES];

	//These variables are for auto-mapping with the draw2dscreen function.
	//When you load a new board, these bits are all set to 0 - since
	//you haven't mapped out anything yet.  Note that these arrays are
	//bit-mapped.
	//If you want draw2dscreen() to show sprite #54 then you say:
	//   spritenum = 54;
	//   show2dsprite[spritenum>>3] |= (1<<(spritenum&7));
	//And if you want draw2dscreen() to not show sprite #54 then you say:
	//   spritenum = 54;
	//   show2dsprite[spritenum>>3] &= ~(1<<(spritenum&7));
	//Automapping defaults to 0 (do nothing).  If you set automapping to 1,
	//   then in 3D mode, the walls and sprites that you see will show up the
	//   next time you flip to 2D mode.

EXTERN char show2dsector[(MAXSECTORS+7)>>3];
EXTERN char show2dwall[(MAXWALLS+7)>>3];
EXTERN char show2dsprite[(MAXSPRITES+7)>>3];
EXTERN char automapping;

EXTERN char gotpic[(MAXTILES+7)>>3];
EXTERN char gotsector[(MAXSECTORS+7)>>3];

/*************************************************************************
POSITION VARIABLES:

		POSX is your x - position ranging from 0 to 65535
		POSY is your y - position ranging from 0 to 65535
			(the length of a side of the grid in EDITBORD would be 1024)
		POSZ is your z - position (height) ranging from 0 to 65535, 0 highest.
		ANG is your angle ranging from 0 to 2047.  Instead of 360 degrees, or
			 2 * PI radians, I use 2048 different angles, so 90 degrees would
			 be 512 in my system.

SPRITE VARIABLES:

	EXTERN short headspritesect[MAXSECTORS+1], headspritestat[MAXSTATUS+1];
	EXTERN short prevspritesect[MAXSPRITES], prevspritestat[MAXSPRITES];
	EXTERN short nextspritesect[MAXSPRITES], nextspritestat[MAXSPRITES];

	Example: if the linked lists look like the following:
		 谀哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪目