315 lines
11 KiB
C
Executable File
315 lines
11 KiB
C
Executable File
/*
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* "Build Engine & Tools" Copyright (c) 1993-1997 Ken Silverman
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* Ken Silverman's official web site: "http://www.advsys.net/ken"
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* See the included license file "BUILDLIC.TXT" for license info.
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* This file has been modified from Ken Silverman's original release
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*/
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#ifndef _INCLUDE_BUILD_H_
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#define _INCLUDE_BUILD_H_
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#define MAXSECTORS 1024
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#define MAXWALLS 8192
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#define MAXSPRITES 4096
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#define MAXTILES 9216
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#define MAXSTATUS 1024
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#define MAXPLAYERS 16
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#define MAXXDIM 1600
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#define MAXYDIM 1200
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#define MAXPALOOKUPS 256
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#define MAXPSKYTILES 256
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#define MAXSPRITESONSCREEN 1024
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#define CLIPMASK0 (((1L)<<16)+1L)
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#define CLIPMASK1 (((256L)<<16)+64L)
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/*
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* Make all variables in BUILD.H defined in the ENGINE,
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* and externed in GAME
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* (dear lord. --ryan.)
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*/
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#ifdef ENGINE
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#define EXTERN
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#else
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#define EXTERN extern
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#endif
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#ifdef PLATFORM_DOS
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#pragma pack(push,1);
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#else
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#pragma pack(1)
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#endif
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/*
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* ceilingstat/floorstat:
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* bit 0: 1 = parallaxing, 0 = not "P"
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* bit 1: 1 = groudraw, 0 = not
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* bit 2: 1 = swap x&y, 0 = not "F"
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* bit 3: 1 = double smooshiness "E"
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* bit 4: 1 = x-flip "F"
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* bit 5: 1 = y-flip "F"
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* bit 6: 1 = Align texture to first wall of sector "R"
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* bits 7-8: "T"
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* 00 = normal floors
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* 01 = masked floors
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* 10 = transluscent masked floors
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* 11 = reverse transluscent masked floors
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* bits 9-15: reserved
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*/
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/* 40 bytes */
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typedef struct
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{
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short wallptr, wallnum;
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long ceilingz, floorz;
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short ceilingstat, floorstat;
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short ceilingpicnum, ceilingheinum;
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signed char ceilingshade;
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unsigned char ceilingpal, ceilingxpanning, ceilingypanning;
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short floorpicnum, floorheinum;
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signed char floorshade;
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unsigned char floorpal, floorxpanning, floorypanning;
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unsigned char visibility, filler;
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short lotag, hitag, extra;
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} sectortype;
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/*
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* cstat:
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* bit 0: 1 = Blocking wall (use with clipmove, getzrange) "B"
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* bit 1: 1 = bottoms of invisible walls swapped, 0 = not "2"
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* bit 2: 1 = align picture on bottom (for doors), 0 = top "O"
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* bit 3: 1 = x-flipped, 0 = normal "F"
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* bit 4: 1 = masking wall, 0 = not "M"
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* bit 5: 1 = 1-way wall, 0 = not "1"
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* bit 6: 1 = Blocking wall (use with hitscan / cliptype 1) "H"
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* bit 7: 1 = Transluscence, 0 = not "T"
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* bit 8: 1 = y-flipped, 0 = normal "F"
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* bit 9: 1 = Transluscence reversing, 0 = normal "T"
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* bits 10-15: reserved
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*/
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/* 32 bytes */
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typedef struct
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{
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long x, y;
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short point2, nextwall, nextsector, cstat;
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short picnum, overpicnum;
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signed char shade;
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char pal, xrepeat, yrepeat, xpanning, ypanning;
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short lotag, hitag, extra;
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} walltype;
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/*
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* cstat:
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* bit 0: 1 = Blocking sprite (use with clipmove, getzrange) "B"
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* bit 1: 1 = transluscence, 0 = normal "T"
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* bit 2: 1 = x-flipped, 0 = normal "F"
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* bit 3: 1 = y-flipped, 0 = normal "F"
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* bits 5-4: 00 = FACE sprite (default) "R"
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* 01 = WALL sprite (like masked walls)
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* 10 = FLOOR sprite (parallel to ceilings&floors)
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* bit 6: 1 = 1-sided sprite, 0 = normal "1"
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* bit 7: 1 = Real centered centering, 0 = foot center "C"
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* bit 8: 1 = Blocking sprite (use with hitscan / cliptype 1) "H"
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* bit 9: 1 = Transluscence reversing, 0 = normal "T"
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* bits 10-14: reserved
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* bit 15: 1 = Invisible sprite, 0 = not invisible
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*/
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/* 44 bytes */
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typedef struct
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{
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long x, y, z;
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short cstat, picnum;
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signed char shade;
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unsigned char pal, clipdist, filler;
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unsigned char xrepeat, yrepeat;
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signed char xoffset, yoffset;
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short sectnum, statnum;
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short ang, owner, xvel, yvel, zvel;
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short lotag, hitag, extra;
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} spritetype;
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#ifdef PLATFORM_DOS
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#pragma pack(pop);
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#else
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#pragma pack()
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#endif
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EXTERN sectortype sector[MAXSECTORS];
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EXTERN walltype wall[MAXWALLS];
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EXTERN spritetype sprite[MAXSPRITES];
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EXTERN long spritesortcnt;
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EXTERN spritetype tsprite[MAXSPRITESONSCREEN];
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EXTERN char vidoption;
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EXTERN long xdim, ydim, ylookup[MAXYDIM+1], numpages;
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EXTERN long yxaspect, viewingrange;
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EXTERN long validmodecnt;
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EXTERN short validmode[256];
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EXTERN long validmodexdim[256], validmodeydim[256];
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EXTERN short numsectors, numwalls;
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EXTERN volatile long totalclock;
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EXTERN long numframes, randomseed;
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EXTERN short sintable[2048];
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EXTERN unsigned char palette[768];
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EXTERN short numpalookups;
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EXTERN char *palookup[MAXPALOOKUPS];
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EXTERN char parallaxtype, showinvisibility;
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EXTERN long parallaxyoffs, parallaxyscale;
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EXTERN long visibility, parallaxvisibility;
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EXTERN long windowx1, windowy1, windowx2, windowy2;
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EXTERN short startumost[MAXXDIM], startdmost[MAXXDIM];
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EXTERN short pskyoff[MAXPSKYTILES], pskybits;
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EXTERN short headspritesect[MAXSECTORS+1], headspritestat[MAXSTATUS+1];
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EXTERN short prevspritesect[MAXSPRITES], prevspritestat[MAXSPRITES];
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EXTERN short nextspritesect[MAXSPRITES], nextspritestat[MAXSPRITES];
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EXTERN short tilesizx[MAXTILES], tilesizy[MAXTILES];
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EXTERN char walock[MAXTILES];
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EXTERN long numtiles, picanm[MAXTILES], waloff[MAXTILES];
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/*
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* These variables are for auto-mapping with the draw2dscreen function.
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* When you load a new board, these bits are all set to 0 - since
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* you haven't mapped out anything yet. Note that these arrays are
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* bit-mapped.
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* If you want draw2dscreen() to show sprite #54 then you say:
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* spritenum = 54;
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* show2dsprite[spritenum>>3] |= (1<<(spritenum&7));
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* And if you want draw2dscreen() to not show sprite #54 then you say:
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* spritenum = 54;
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* show2dsprite[spritenum>>3] &= ~(1<<(spritenum&7));
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* Automapping defaults to 0 (do nothing). If you set automapping to 1,
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* then in 3D mode, the walls and sprites that you see will show up the
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* next time you flip to 2D mode.
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*/
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EXTERN char show2dsector[(MAXSECTORS+7)>>3];
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EXTERN char show2dwall[(MAXWALLS+7)>>3];
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EXTERN char show2dsprite[(MAXSPRITES+7)>>3];
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EXTERN char automapping;
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EXTERN char gotpic[(MAXTILES+7)>>3];
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EXTERN char gotsector[(MAXSECTORS+7)>>3];
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/*************************************************************************
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POSITION VARIABLES:
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POSX is your x - position ranging from 0 to 65535
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POSY is your y - position ranging from 0 to 65535
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(the length of a side of the grid in EDITBORD would be 1024)
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POSZ is your z - position (height) ranging from 0 to 65535, 0 highest.
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ANG is your angle ranging from 0 to 2047. Instead of 360 degrees, or
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2 * PI radians, I use 2048 different angles, so 90 degrees would
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be 512 in my system.
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SPRITE VARIABLES:
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EXTERN short headspritesect[MAXSECTORS+1], headspritestat[MAXSTATUS+1];
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EXTERN short prevspritesect[MAXSPRITES], prevspritestat[MAXSPRITES];
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EXTERN short nextspritesect[MAXSPRITES], nextspritestat[MAXSPRITES];
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Example: if the linked lists look like the following:
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<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ
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<20> Sector lists: Status lists: <20>
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<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ
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<20> Sector0: 4, 5, 8 Status0: 2, 0, 8 <20>
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<20> Sector1: 16, 2, 0, 7 Status1: 4, 5, 16, 7, 3, 9 <20>
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<20> Sector2: 3, 9 <20>
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<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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Notice that each number listed above is shown exactly once on both the
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left and right side. This is because any sprite that exists must
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be in some sector, and must have some kind of status that you define.
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Coding example #1:
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To go through all the sprites in sector 1, the code can look like this:
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sectnum = 1;
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i = headspritesect[sectnum];
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while (i != -1)
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{
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nexti = nextspritesect[i];
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//your code goes here
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//ex: printf("Sprite %d is in sector %d\n",i,sectnum);
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i = nexti;
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}
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Coding example #2:
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To go through all sprites with status = 1, the code can look like this:
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statnum = 1; //status 1
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i = headspritestat[statnum];
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while (i != -1)
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{
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nexti = nextspritestat[i];
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//your code goes here
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//ex: printf("Sprite %d has a status of 1 (active)\n",i,statnum);
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i = nexti;
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}
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insertsprite(short sectnum, short statnum);
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deletesprite(short spritenum);
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changespritesect(short spritenum, short newsectnum);
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changespritestat(short spritenum, short newstatnum);
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TILE VARIABLES:
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NUMTILES - the number of tiles found TILES.DAT.
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TILESIZX[MAXTILES] - simply the x-dimension of the tile number.
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TILESIZY[MAXTILES] - simply the y-dimension of the tile number.
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WALOFF[MAXTILES] - the actual 32-bit offset pointing to the top-left
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corner of the tile.
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PICANM[MAXTILES] - flags for animating the tile.
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TIMING VARIABLES:
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TOTALCLOCK - When the engine is initialized, TOTALCLOCK is set to zero.
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From then on, it is incremented 120 times a second by 1. That
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means that the number of seconds elapsed is totalclock / 120.
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NUMFRAMES - The number of times the draw3dscreen function was called
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since the engine was initialized. This helps to determine frame
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rate. (Frame rate = numframes * 120 / totalclock.)
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OTHER VARIABLES:
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STARTUMOST[320] is an array of the highest y-coordinates on each column
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that my engine is allowed to write to. You need to set it only
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once.
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STARTDMOST[320] is an array of the lowest y-coordinates on each column
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that my engine is allowed to write to. You need to set it only
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once.
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SINTABLE[2048] is a sin table with 2048 angles rather than the
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normal 360 angles for higher precision. Also since SINTABLE is in
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all integers, the range is multiplied by 16383, so instead of the
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normal -1<sin(x)<1, the range of sintable is -16383<sintable[]<16383
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If you use this sintable, you can possibly speed up your code as
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well as save space in memory. If you plan to use sintable, 2
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identities you may want to keep in mind are:
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sintable[ang&2047] = sin(ang * (3.141592/1024)) * 16383
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sintable[(ang+512)&2047] = cos(ang * (3.141592/1024)) * 16383
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NUMSECTORS - the total number of existing sectors. Modified every time
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you call the loadboard function.
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***************************************************************************/
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#define PORTSIG "Port by Ryan C. Gordon, Andrew Henderson, Dan Olson, and a cast of thousands."
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#endif /* defined _INCLUDE_BUILD_H_ */
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/* end of build.h ... */
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