// "Build Engine & Tools" Copyright (c) 1993-1997 Ken Silverman // Ken Silverman's official web site: "http://www.advsys.net/ken" // See the included license file "BUILDLIC.TXT" for license info. // // This file has been modified from Ken Silverman's original release // by Jonathon Fowler (jonof@edgenetwk.com) //#define POLYMOST //#define SUPERBUILD #define ENGINE #include "compat.h" #include "build.h" #include "pragmas.h" #include "cache1d.h" #include "a.h" #include "osd.h" #include "crc32.h" #include "baselayer.h" #ifdef POLYMOST # ifdef _WIN32 # define WIN32_LEAN_AND_MEAN # include # endif # ifdef USE_OPENGL # include "glbuild.h" # include "polymer.h" # endif #endif #include #define MAXCLIPNUM 1024 #define MAXPERMS 512 #define MAXTILEFILES 256 #define MAXYSAVES ((MAXXDIM*MAXSPRITES)>>7) #define MAXNODESPERLINE 42 //Warning: This depends on MAXYSAVES & MAXYDIM! #define MAXWALLSB 2048 #define MAXCLIPDIST 1024 void *kmalloc(bsize_t size) { return(Bmalloc(size)); } #define kkmalloc kmalloc void kfree(void *buffer) { Bfree(buffer); } #define kkfree kfree #ifdef SUPERBUILD void loadvoxel(long voxindex) { voxindex=0; } long tiletovox[MAXTILES]; long usevoxels = 1; #define kloadvoxel loadvoxel long novoxmips = 0; long editorgridextent = 131072; //These variables need to be copied into BUILD #define MAXXSIZ 256 #define MAXYSIZ 256 #define MAXZSIZ 255 #define MAXVOXMIPS 5 long voxoff[MAXVOXELS][MAXVOXMIPS]; char voxlock[MAXVOXELS][MAXVOXMIPS]; long voxscale[MAXVOXELS]; static long ggxinc[MAXXSIZ+1], ggyinc[MAXXSIZ+1]; static long lowrecip[1024], nytooclose, nytoofar; static unsigned long distrecip[65536]; #endif static long *lookups = NULL; static char lookupsalloctype = 255; long dommxoverlay = 1, beforedrawrooms = 1, indrawroomsandmasks = 0; static long oxdimen = -1, oviewingrange = -1, oxyaspect = -1; long curbrightness = 0, gammabrightness = 0; //Textured Map variables static char globalpolytype; static short *dotp1[MAXYDIM], *dotp2[MAXYDIM]; static unsigned char tempbuf[MAXWALLS]; long ebpbak, espbak; long slopalookup[16384]; // was 2048 #if defined(USE_OPENGL) static palette_t palookupfog[MAXPALOOKUPS]; #endif static char permanentlock = 255; long artversion, mapversion=7L; // JBF 20040211: default mapversion to 7 void *pic = NULL; char picsiz[MAXTILES], tilefilenum[MAXTILES]; long lastageclock; long tilefileoffs[MAXTILES]; long artsize = 0, cachesize = 0; static short radarang[1280], radarang2[MAXXDIM]; static unsigned short sqrtable[4096], shlookup[4096+256]; char pow2char[8] = {1,2,4,8,16,32,64,128}; long pow2long[32] = { 1L,2L,4L,8L, 16L,32L,64L,128L, 256L,512L,1024L,2048L, 4096L,8192L,16384L,32768L, 65536L,131072L,262144L,524288L, 1048576L,2097152L,4194304L,8388608L, 16777216L,33554432L,67108864L,134217728L, 268435456L,536870912L,1073741824L,2147483647L }; long reciptable[2048], fpuasm; char britable[16][256]; // JBF 20040207: full 8bit precision //char textfont[1024], smalltextfont[1024]; #include "textfont.c" #include "smalltextfont.c" static char kensmessage[128]; char *engineerrstr = "No error"; #if defined(__WATCOMC__) && !defined(NOASM) // // Watcom Inline Assembly Routines // #pragma aux nsqrtasm =\ "test eax, 0xff000000",\ "mov ebx, eax",\ "jnz short over24",\ "shr ebx, 12",\ "mov cx, word ptr shlookup[ebx*2]",\ "jmp short under24",\ "over24: shr ebx, 24",\ "mov cx, word ptr shlookup[ebx*2+8192]",\ "under24: shr eax, cl",\ "mov cl, ch",\ "mov ax, word ptr sqrtable[eax*2]",\ "shr eax, cl",\ parm nomemory [eax]\ modify exact [eax ebx ecx] unsigned long nsqrtasm(unsigned long); #pragma aux msqrtasm =\ "mov eax, 0x40000000",\ "mov ebx, 0x20000000",\ "begit: cmp ecx, eax",\ "jl skip",\ "sub ecx, eax",\ "lea eax, [eax+ebx*4]",\ "skip: sub eax, ebx",\ "shr eax, 1",\ "shr ebx, 2",\ "jnz begit",\ "cmp ecx, eax",\ "sbb eax, -1",\ "shr eax, 1",\ parm nomemory [ecx]\ modify exact [eax ebx ecx] long msqrtasm(unsigned long); //0x007ff000 is (11<<13), 0x3f800000 is (127<<23) #pragma aux krecipasm =\ "mov fpuasm, eax",\ "fild dword ptr fpuasm",\ "add eax, eax",\ "fstp dword ptr fpuasm",\ "sbb ebx, ebx",\ "mov eax, fpuasm",\ "mov ecx, eax",\ "and eax, 0x007ff000",\ "shr eax, 10",\ "sub ecx, 0x3f800000",\ "shr ecx, 23",\ "mov eax, dword ptr reciptable[eax]",\ "sar eax, cl",\ "xor eax, ebx",\ parm [eax]\ modify exact [eax ebx ecx] long krecipasm(long); #pragma aux setgotpic =\ "mov ebx, eax",\ "cmp byte ptr walock[eax], 200",\ "jae skipit",\ "mov byte ptr walock[eax], 199",\ "skipit: shr eax, 3",\ "and ebx, 7",\ "mov dl, byte ptr gotpic[eax]",\ "mov bl, byte ptr pow2char[ebx]",\ "or dl, bl",\ "mov byte ptr gotpic[eax], dl",\ parm [eax]\ modify exact [eax ebx ecx edx] void setgotpic(long); #pragma aux getclipmask =\ "sar eax, 31",\ "add ebx, ebx",\ "adc eax, eax",\ "add ecx, ecx",\ "adc eax, eax",\ "add edx, edx",\ "adc eax, eax",\ "mov ebx, eax",\ "shl ebx, 4",\ "or al, 0xf0",\ "xor eax, ebx",\ parm [eax][ebx][ecx][edx]\ modify exact [eax ebx ecx edx] long getclipmask(long,long,long,long); #pragma aux getkensmessagecrc =\ "xor eax, eax",\ "mov ecx, 32",\ "beg: mov edx, dword ptr [ebx+ecx*4-4]",\ "ror edx, cl",\ "adc eax, edx",\ "bswap eax",\ "loop short beg",\ parm [ebx]\ modify exact [eax ebx ecx edx] long getkensmessagecrc(long); #elif defined(_MSC_VER) && !defined(NOASM) // __WATCOMC__ // // Microsoft C Inline Assembly Routines // static inline long nsqrtasm(long a) { _asm { push ebx mov eax, a test eax, 0xff000000 mov ebx, eax jnz short over24 shr ebx, 12 mov cx, word ptr shlookup[ebx*2] jmp short under24 over24: shr ebx, 24 mov cx, word ptr shlookup[ebx*2+8192] under24: shr eax, cl mov cl, ch mov ax, word ptr sqrtable[eax*2] shr eax, cl pop ebx } } static inline long msqrtasm(long c) { _asm { push ebx mov ecx, c mov eax, 0x40000000 mov ebx, 0x20000000 begit: cmp ecx, eax jl skip sub ecx, eax lea eax, [eax+ebx*4] skip: sub eax, ebx shr eax, 1 shr ebx, 2 jnz begit cmp ecx, eax sbb eax, -1 shr eax, 1 pop ebx } } //0x007ff000 is (11<<13), 0x3f800000 is (127<<23) static inline long krecipasm(long a) { _asm { push ebx mov eax, a mov fpuasm, eax fild dword ptr fpuasm add eax, eax fstp dword ptr fpuasm sbb ebx, ebx mov eax, fpuasm mov ecx, eax and eax, 0x007ff000 shr eax, 10 sub ecx, 0x3f800000 shr ecx, 23 mov eax, dword ptr reciptable[eax] sar eax, cl xor eax, ebx pop ebx } } static inline void setgotpic(long a) { _asm { push ebx mov eax, a mov ebx, eax cmp byte ptr walock[eax], 200 jae skipit mov byte ptr walock[eax], 199 skipit: shr eax, 3 and ebx, 7 mov dl, byte ptr gotpic[eax] mov bl, byte ptr pow2char[ebx] or dl, bl mov byte ptr gotpic[eax], dl pop ebx } } static inline long getclipmask(long a, long b, long c, long d) { _asm { push ebx mov eax, a mov ebx, b mov ecx, c mov edx, d sar eax, 31 add ebx, ebx adc eax, eax add ecx, ecx adc eax, eax add edx, edx adc eax, eax mov ebx, eax shl ebx, 4 or al, 0xf0 xor eax, ebx pop ebx } } static inline long getkensmessagecrc(void *b) { _asm { push ebx mov ebx, b xor eax, eax mov ecx, 32 beg: mov edx, dword ptr [ebx+ecx*4-4] ror edx, cl adc eax, edx bswap eax loop short beg pop ebx } } #elif defined(__GNUC__) && defined(__i386__) && !defined(NOASM) // _MSC_VER // // GCC "Inline" Assembly Routines // #define nsqrtasm(a) \ ({ long __r, __a=(a); \ __asm__ __volatile__ ( \ "testl $0xff000000, %%eax\n\t" \ "movl %%eax, %%ebx\n\t" \ "jnz 0f\n\t" \ "shrl $12, %%ebx\n\t" \ "movw "ASMSYM("shlookup")"(,%%ebx,2), %%cx\n\t" \ "jmp 1f\n\t" \ "0:\n\t" \ "shrl $24, %%ebx\n\t" \ "movw ("ASMSYM("shlookup")"+8192)(,%%ebx,2), %%cx\n\t" \ "1:\n\t" \ "shrl %%cl, %%eax\n\t" \ "movb %%ch, %%cl\n\t" \ "movw "ASMSYM("sqrtable")"(,%%eax,2), %%ax\n\t" \ "shrl %%cl, %%eax" \ : "=a" (__r) : "a" (__a) : "ebx", "ecx", "cc"); \ __r; }) // edx is blown by this code somehow?! #define msqrtasm(c) \ ({ long __r, __c=(c); \ __asm__ __volatile__ ( \ "movl $0x40000000, %%eax\n\t" \ "movl $0x20000000, %%ebx\n\t" \ "0:\n\t" \ "cmpl %%eax, %%ecx\n\t" \ "jl 1f\n\t" \ "subl %%eax, %%ecx\n\t" \ "leal (%%eax,%%ebx,4), %%eax\n\t" \ "1:\n\t" \ "subl %%ebx, %%eax\n\t" \ "shrl $1, %%eax\n\t" \ "shrl $2, %%ebx\n\t" \ "jnz 0b\n\t" \ "cmpl %%eax, %%ecx\n\t" \ "sbbl $-1, %%eax\n\t" \ "shrl $1, %%eax" \ : "=a" (__r) : "c" (__c) : "edx","ebx", "cc"); \ __r; }) #define setgotpic(a) \ ({ long __a=(a); \ __asm__ __volatile__ ( \ "movl %%eax, %%ebx\n\t" \ "cmpb $200, "ASMSYM("walock")"(%%eax)\n\t" \ "jae 0f\n\t" \ "movb $199, "ASMSYM("walock")"(%%eax)\n\t" \ "0:\n\t" \ "shrl $3, %%eax\n\t" \ "andl $7, %%ebx\n\t" \ "movb "ASMSYM("gotpic")"(%%eax), %%dl\n\t" \ "movb "ASMSYM("pow2char")"(%%ebx), %%bl\n\t" \ "orb %%bl, %%dl\n\t" \ "movb %%dl, "ASMSYM("gotpic")"(%%eax)" \ : "=a" (__a) : "a" (__a) \ : "ebx", "edx", "memory", "cc"); \ __a; }) #define krecipasm(a) \ ({ long __a=(a); \ __asm__ __volatile__ ( \ "movl %%eax, ("ASMSYM("fpuasm")"); fildl ("ASMSYM("fpuasm")"); " \ "addl %%eax, %%eax; fstps ("ASMSYM("fpuasm")"); sbbl %%ebx, %%ebx; " \ "movl ("ASMSYM("fpuasm")"), %%eax; movl %%eax, %%ecx; " \ "andl $0x007ff000, %%eax; shrl $10, %%eax; subl $0x3f800000, %%ecx; " \ "shrl $23, %%ecx; movl "ASMSYM("reciptable")"(%%eax), %%eax; " \ "sarl %%cl, %%eax; xorl %%ebx, %%eax" \ : "=a" (__a) : "a" (__a) : "ebx", "ecx", "memory", "cc"); \ __a; }) #define getclipmask(a,b,c,d) \ ({ long __a=(a), __b=(b), __c=(c), __d=(d); \ __asm__ __volatile__ ("sarl $31, %%eax; addl %%ebx, %%ebx; adcl %%eax, %%eax; " \ "addl %%ecx, %%ecx; adcl %%eax, %%eax; addl %%edx, %%edx; " \ "adcl %%eax, %%eax; movl %%eax, %%ebx; shl $4, %%ebx; " \ "orb $0xf0, %%al; xorl %%ebx, %%eax" \ : "=a" (__a), "=b" (__b), "=c" (__c), "=d" (__d) \ : "a" (__a), "b" (__b), "c" (__c), "d" (__d) : "cc"); \ __a; }) #define getkensmessagecrc(b) \ ({ long __a, __b=(b); \ __asm__ __volatile__ ( \ "xorl %%eax, %%eax\n\t" \ "movl $32, %%ecx\n\t" \ "0:\n\t" \ "movl -4(%%ebx,%%ecx,4), %%edx\n\t" \ "rorl %%cl, %%edx\n\t" \ "adcl %%edx, %%eax\n\t" \ "bswapl %%eax\n\t" \ "loop 0b" \ : "=a" (__a) : "b" (__b) : "ecx", "edx" \ __a; }) #else // __GNUC__ && __i386__ static inline unsigned long nsqrtasm(unsigned long a) { // JBF 20030901: This was a damn lot simpler to reverse engineer than // msqrtasm was. Really, it was just like simplifying an algebra equation. unsigned short c; if (a & 0xff000000) { // test eax, 0xff000000 / jnz short over24 c = shlookup[(a >> 24) + 4096]; // mov ebx, eax // over24: shr ebx, 24 // mov cx, word ptr shlookup[ebx*2+8192] } else { c = shlookup[a >> 12]; // mov ebx, eax // shr ebx, 12 // mov cx, word ptr shlookup[ebx*2] // jmp short under24 } a >>= c&0xff; // under24: shr eax, cl a = (a&0xffff0000)|(sqrtable[a]); // mov ax, word ptr sqrtable[eax*2] a >>= ((c&0xff00) >> 8); // mov cl, ch // shr eax, cl return a; } static inline long msqrtasm(unsigned long c) { unsigned long a,b; a = 0x40000000l; // mov eax, 0x40000000 b = 0x20000000l; // mov ebx, 0x20000000 do { // begit: if (c >= a) { // cmp ecx, eax / jl skip c -= a; // sub ecx, eax a += b*4; // lea eax, [eax+ebx*4] } // skip: a -= b; // sub eax, ebx a >>= 1; // shr eax, 1 b >>= 2; // shr ebx, 2 } while (b); // jnz begit if (c >= a) // cmp ecx, eax a++; // sbb eax, -1 a >>= 1; // shr eax, 1 return a; } static inline void setgotpic(long tilenume) { if (walock[tilenume] < 200) walock[tilenume] = 199; gotpic[tilenume>>3] |= pow2char[tilenume&7]; } static inline long krecipasm(long i) { // Ken did this float f = (float)i; i = *(long *)&f; return((reciptable[(i>>12)&2047]>>(((i-0x3f800000)>>23)&31))^(i>>31)); } static inline long getclipmask(long a, long b, long c, long d) { // Ken did this d = ((a<0)*8) + ((b<0)*4) + ((c<0)*2) + (d<0); return(((d<<4)^0xf0)|d); } inline long getkensmessagecrc(long b) { return 0x56c764d4l; b=b; } #endif static long xb1[MAXWALLSB], yb1[MAXWALLSB], xb2[MAXWALLSB], yb2[MAXWALLSB]; static long rx1[MAXWALLSB], ry1[MAXWALLSB], rx2[MAXWALLSB], ry2[MAXWALLSB]; static short p2[MAXWALLSB], thesector[MAXWALLSB], thewall[MAXWALLSB]; static short bunchfirst[MAXWALLSB], bunchlast[MAXWALLSB]; static short smost[MAXYSAVES], smostcnt; static short smoststart[MAXWALLSB]; static char smostwalltype[MAXWALLSB]; static long smostwall[MAXWALLSB], smostwallcnt = -1L; static short maskwall[MAXWALLSB], maskwallcnt; static long spritesx[MAXSPRITESONSCREEN]; static long spritesy[MAXSPRITESONSCREEN+1]; static long spritesz[MAXSPRITESONSCREEN]; static spritetype *tspriteptr[MAXSPRITESONSCREEN]; short umost[MAXXDIM], dmost[MAXXDIM]; static short bakumost[MAXXDIM], bakdmost[MAXXDIM]; short uplc[MAXXDIM], dplc[MAXXDIM]; static short uwall[MAXXDIM], dwall[MAXXDIM]; static long swplc[MAXXDIM], lplc[MAXXDIM]; static long swall[MAXXDIM], lwall[MAXXDIM+4]; long xdimen = -1, xdimenrecip, halfxdimen, xdimenscale, xdimscale; long wx1, wy1, wx2, wy2, ydimen; long /*viewoffset,*/ frameoffset; static long nrx1[8], nry1[8], nrx2[8], nry2[8]; // JBF 20031206: Thanks Ken static long rxi[8], ryi[8], rzi[8], rxi2[8], ryi2[8], rzi2[8]; static long xsi[8], ysi[8], *horizlookup=0, *horizlookup2=0, horizycent; long globalposx, globalposy, globalposz, globalhoriz; short globalang, globalcursectnum; long globalpal, cosglobalang, singlobalang; long cosviewingrangeglobalang, sinviewingrangeglobalang; char *globalpalwritten; long globaluclip, globaldclip, globvis; long globalvisibility, globalhisibility, globalpisibility, globalcisibility; char globparaceilclip, globparaflorclip; long xyaspect, viewingrangerecip; long asm1, asm2, asm3, asm4; long vplce[4], vince[4], palookupoffse[4], bufplce[4]; char globalxshift, globalyshift; long globalxpanning, globalypanning, globalshade; short globalpicnum, globalshiftval; long globalzd, globalbufplc, globalyscale, globalorientation; long globalx1, globaly1, globalx2, globaly2, globalx3, globaly3, globalzx; long globalx, globaly, globalz; static short sectorborder[256], sectorbordercnt; static char tablesloaded = 0; long pageoffset, ydim16, qsetmode = 0; long startposx, startposy, startposz; short startang, startsectnum; short pointhighlight, linehighlight, highlightcnt; static long lastx[MAXYDIM]; char *transluc = NULL, paletteloaded = 0; long halfxdim16, midydim16; #define FASTPALGRIDSIZ 8 static long rdist[129], gdist[129], bdist[129]; static char colhere[((FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2))>>3]; static char colhead[(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)*(FASTPALGRIDSIZ+2)]; static long colnext[256]; static char coldist[8] = {0,1,2,3,4,3,2,1}; static long colscan[27]; static short clipnum, hitwalls[4]; long hitscangoalx = (1<<29)-1, hitscangoaly = (1<<29)-1; #ifdef POLYMOST static long hitallsprites = 0; #endif typedef struct { long x1, y1, x2, y2; } linetype; static linetype clipit[MAXCLIPNUM]; static short clipsectorlist[MAXCLIPNUM], clipsectnum; static short clipobjectval[MAXCLIPNUM]; typedef struct { long sx, sy, z; short a, picnum; signed char dashade; char dapalnum, dastat, pagesleft; long cx1, cy1, cx2, cy2; long uniqid; //JF extension } permfifotype; static permfifotype permfifo[MAXPERMS]; static long permhead = 0, permtail = 0; short numscans, numhits, numbunches; static short posfil, capturecount = 0, hitcnt; char vgapal16[4*256] = { 00,00,00,00, 42,00,00,00, 00,42,00,00, 42,42,00,00, 00,00,42,00, 42,00,42,00, 00,21,42,00, 42,42,42,00, 21,21,21,00, 63,21,21,00, 21,63,21,00, 63,63,21,00, 21,21,63,00, 63,21,63,00, 21,63,63,00, 63,63,63,00 }; short editstatus = 0; short searchit; long searchx = -1, searchy; //search input short searchsector, searchwall, searchstat; //search output double msens = 1.0; static char artfilename[20]; static long numtilefiles, artfil = -1, artfilnum, artfilplc; static char inpreparemirror = 0; static long mirrorsx1, mirrorsy1, mirrorsx2, mirrorsy2; static long setviewcnt = 0; // interface layers use this now static long bakframeplace[4], bakxsiz[4], bakysiz[4]; static long bakwindowx1[4], bakwindowy1[4]; static long bakwindowx2[4], bakwindowy2[4]; #ifdef POLYMOST static long bakrendmode,baktile; #endif long totalclocklock; char apptitle[256] = "Build Engine"; palette_t curpalette[256]; // the current palette, unadjusted for brightness or tint palette_t curpalettefaded[256]; // the current palette, adjusted for brightness and tint (ie. what gets sent to the card) palette_t palfadergb = { 0,0,0,0 }; char palfadedelta = 0; // // Internal Engine Functions // //long cacheresets = 0,cacheinvalidates = 0; //============================================================================= //POLYMOST BEGINS #ifdef POLYMOST static void scansector(short sectnum); #include "polymost.h" #include "hightile.c" #include "polymost.c" #else void hicsetpalettetint(long palnum, unsigned char r, unsigned char g, unsigned char b, unsigned char effect) { } int hicsetsubsttex(long picnum, long palnum, char *filen, float alphacut, float xscale, float yscale, char flags) { return 0; } int hicsetskybox(long picnum, long palnum, char *faces[6]) { return 0; } int hicclearsubst(long picnum, long palnum) { return 0; } long polymost_drawtilescreen (long tilex, long tiley, long wallnum, long dimen) { return -1; } #endif //============================================================================= //POLYMOST ENDS // // getpalookup (internal) // static inline long getpalookup(long davis, long dashade) { return(min(max(dashade+(davis>>8),0),numpalookups-1)); } // // scansector (internal) // static void scansector(short sectnum) { walltype *wal, *wal2; spritetype *spr; long xs, ys, x1, y1, x2, y2, xp1, yp1, xp2=0, yp2=0, templong; short z, zz, startwall, endwall, numscansbefore, scanfirst, bunchfrst; short nextsectnum; if (sectnum < 0) return; if (automapping) show2dsector[sectnum>>3] |= pow2char[sectnum&7]; sectorborder[0] = sectnum, sectorbordercnt = 1; do { sectnum = sectorborder[--sectorbordercnt]; for (z=headspritesect[sectnum];z>=0;z=nextspritesect[z]) { spr = &sprite[z]; if ((((spr->cstat&0x8000) == 0) || (showinvisibility)) && (spr->xrepeat > 0) && (spr->yrepeat > 0) && (spritesortcnt < MAXSPRITESONSCREEN)) { xs = spr->x-globalposx; ys = spr->y-globalposy; if ((spr->cstat&48) || (xs*cosglobalang+ys*singlobalang > 0)) { copybufbyte(spr,&tsprite[spritesortcnt],sizeof(spritetype)); tsprite[spritesortcnt++].owner = z; } } } gotsector[sectnum>>3] |= pow2char[sectnum&7]; bunchfrst = numbunches; numscansbefore = numscans; startwall = sector[sectnum].wallptr; endwall = startwall + sector[sectnum].wallnum; scanfirst = numscans; for (z=startwall,wal=&wall[z];znextsector; wal2 = &wall[wal->point2]; x1 = wal->x-globalposx; y1 = wal->y-globalposy; x2 = wal2->x-globalposx; y2 = wal2->y-globalposy; if ((nextsectnum >= 0) && ((wal->cstat&32) == 0)) if ((gotsector[nextsectnum>>3]&pow2char[nextsectnum&7]) == 0) { templong = x1*y2-x2*y1; if (((unsigned)templong+262144) < 524288) if (mulscale5(templong,templong) <= (x2-x1)*(x2-x1)+(y2-y1)*(y2-y1)) sectorborder[sectorbordercnt++] = nextsectnum; } if ((z == startwall) || (wall[z-1].point2 != z)) { xp1 = dmulscale6(y1,cosglobalang,-x1,singlobalang); yp1 = dmulscale6(x1,cosviewingrangeglobalang,y1,sinviewingrangeglobalang); } else { xp1 = xp2; yp1 = yp2; } xp2 = dmulscale6(y2,cosglobalang,-x2,singlobalang); yp2 = dmulscale6(x2,cosviewingrangeglobalang,y2,sinviewingrangeglobalang); if ((yp1 < 256) && (yp2 < 256)) goto skipitaddwall; //If wall's NOT facing you if (dmulscale32(xp1,yp2,-xp2,yp1) >= 0) goto skipitaddwall; if (xp1 >= -yp1) { if ((xp1 > yp1) || (yp1 == 0)) goto skipitaddwall; xb1[numscans] = halfxdimen + scale(xp1,halfxdimen,yp1); if (xp1 >= 0) xb1[numscans]++; //Fix for SIGNED divide if (xb1[numscans] >= xdimen) xb1[numscans] = xdimen-1; yb1[numscans] = yp1; } else { if (xp2 < -yp2) goto skipitaddwall; xb1[numscans] = 0; templong = yp1-yp2+xp1-xp2; if (templong == 0) goto skipitaddwall; yb1[numscans] = yp1 + scale(yp2-yp1,xp1+yp1,templong); } if (yb1[numscans] < 256) goto skipitaddwall; if (xp2 <= yp2) { if ((xp2 < -yp2) || (yp2 == 0)) goto skipitaddwall; xb2[numscans] = halfxdimen + scale(xp2,halfxdimen,yp2) - 1; if (xp2 >= 0) xb2[numscans]++; //Fix for SIGNED divide if (xb2[numscans] >= xdimen) xb2[numscans] = xdimen-1; yb2[numscans] = yp2; } else { if (xp1 > yp1) goto skipitaddwall; xb2[numscans] = xdimen-1; templong = xp2-xp1+yp1-yp2; if (templong == 0) goto skipitaddwall; yb2[numscans] = yp1 + scale(yp2-yp1,yp1-xp1,templong); } if ((yb2[numscans] < 256) || (xb1[numscans] > xb2[numscans])) goto skipitaddwall; //Made it all the way! thesector[numscans] = sectnum; thewall[numscans] = z; rx1[numscans] = xp1; ry1[numscans] = yp1; rx2[numscans] = xp2; ry2[numscans] = yp2; p2[numscans] = numscans+1; numscans++; skipitaddwall: if ((wall[z].point2 < z) && (scanfirst < numscans)) p2[numscans-1] = scanfirst, scanfirst = numscans; } for (z=numscansbefore;z= xb1[p2[z]])) bunchfirst[numbunches++] = p2[z], p2[z] = -1; for (z=bunchfrst;z=0;zz=p2[zz]); bunchlast[z] = zz; } } while (sectorbordercnt > 0); } // // maskwallscan (internal) // static void maskwallscan(long x1, long x2, short *uwal, short *dwal, long *swal, long *lwal) { long i, x, startx, xnice, ynice, fpalookup; long y1ve[4], y2ve[4], u4, d4, dax, z, p, tsizx, tsizy; char bad; tsizx = tilesizx[globalpicnum]; tsizy = tilesizy[globalpicnum]; setgotpic(globalpicnum); if ((tsizx <= 0) || (tsizy <= 0)) return; if ((uwal[x1] > ydimen) && (uwal[x2] > ydimen)) return; if ((dwal[x1] < 0) && (dwal[x2] < 0)) return; if (waloff[globalpicnum] == 0) loadtile(globalpicnum); startx = x1; xnice = (pow2long[picsiz[globalpicnum]&15] == tsizx); if (xnice) tsizx = (tsizx-1); ynice = (pow2long[picsiz[globalpicnum]>>4] == tsizy); if (ynice) tsizy = (picsiz[globalpicnum]>>4); if (palookup[globalpal] == NULL) globalpal = 0; fpalookup = FP_OFF(palookup[globalpal]); setupmvlineasm(globalshiftval); #ifndef ENGINE_USING_A_C x = startx; while ((startumost[x+windowx1] > startdmost[x+windowx1]) && (x <= x2)) x++; p = x+frameoffset; for (;(x<=x2)&&(p&3);x++,p++) { y1ve[0] = max(uwal[x],startumost[x+windowx1]-windowy1); y2ve[0] = min(dwal[x],startdmost[x+windowx1]-windowy1); if (y2ve[0] <= y1ve[0]) continue; palookupoffse[0] = fpalookup+(getpalookup((long)mulscale16(swal[x],globvis),globalshade)<<8); bufplce[0] = lwal[x] + globalxpanning; if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; } if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy; vince[0] = swal[x]*globalyscale; vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1); mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],p+ylookup[y1ve[0]]); } for (;x<=x2-3;x+=4,p+=4) { bad = 0; for (z=3,dax=x+3;z>=0;z--,dax--) { y1ve[z] = max(uwal[dax],startumost[dax+windowx1]-windowy1); y2ve[z] = min(dwal[dax],startdmost[dax+windowx1]-windowy1)-1; if (y2ve[z] < y1ve[z]) { bad += pow2char[z]; continue; } i = lwal[dax] + globalxpanning; if (i >= tsizx) { if (xnice == 0) i %= tsizx; else i &= tsizx; } if (ynice == 0) i *= tsizy; else i <<= tsizy; bufplce[z] = waloff[globalpicnum]+i; vince[z] = swal[dax]*globalyscale; vplce[z] = globalzd + vince[z]*(y1ve[z]-globalhoriz+1); } if (bad == 15) continue; palookupoffse[0] = fpalookup+(getpalookup((long)mulscale16(swal[x],globvis),globalshade)<<8); palookupoffse[3] = fpalookup+(getpalookup((long)mulscale16(swal[x+3],globvis),globalshade)<<8); if ((palookupoffse[0] == palookupoffse[3]) && ((bad&0x9) == 0)) { palookupoffse[1] = palookupoffse[0]; palookupoffse[2] = palookupoffse[0]; } else { palookupoffse[1] = fpalookup+(getpalookup((long)mulscale16(swal[x+1],globvis),globalshade)<<8); palookupoffse[2] = fpalookup+(getpalookup((long)mulscale16(swal[x+2],globvis),globalshade)<<8); } u4 = max(max(y1ve[0],y1ve[1]),max(y1ve[2],y1ve[3])); d4 = min(min(y2ve[0],y2ve[1]),min(y2ve[2],y2ve[3])); if ((bad > 0) || (u4 >= d4)) { if (!(bad&1)) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0],vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0); if (!(bad&2)) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-y1ve[1],vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1); if (!(bad&4)) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-y1ve[2],vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2); if (!(bad&8)) mvlineasm1(vince[3],palookupoffse[3],y2ve[3]-y1ve[3],vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3); continue; } if (u4 > y1ve[0]) vplce[0] = mvlineasm1(vince[0],palookupoffse[0],u4-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0); if (u4 > y1ve[1]) vplce[1] = mvlineasm1(vince[1],palookupoffse[1],u4-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1); if (u4 > y1ve[2]) vplce[2] = mvlineasm1(vince[2],palookupoffse[2],u4-y1ve[2]-1,vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2); if (u4 > y1ve[3]) vplce[3] = mvlineasm1(vince[3],palookupoffse[3],u4-y1ve[3]-1,vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3); if (d4 >= u4) mvlineasm4(d4-u4+1,ylookup[u4]+p); i = p+ylookup[d4+1]; if (y2ve[0] > d4) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0); if (y2ve[1] > d4) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1); if (y2ve[2] > d4) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2); if (y2ve[3] > d4) mvlineasm1(vince[3],palookupoffse[3],y2ve[3]-d4-1,vplce[3],bufplce[3],i+3); } for (;x<=x2;x++,p++) { y1ve[0] = max(uwal[x],startumost[x+windowx1]-windowy1); y2ve[0] = min(dwal[x],startdmost[x+windowx1]-windowy1); if (y2ve[0] <= y1ve[0]) continue; palookupoffse[0] = fpalookup+(getpalookup((long)mulscale16(swal[x],globvis),globalshade)<<8); bufplce[0] = lwal[x] + globalxpanning; if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; } if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy; vince[0] = swal[x]*globalyscale; vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1); mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],p+ylookup[y1ve[0]]); } #else // ENGINE_USING_A_C p = startx+frameoffset; for (x=startx;x<=x2;x++,p++) { y1ve[0] = max(uwal[x],startumost[x+windowx1]-windowy1); y2ve[0] = min(dwal[x],startdmost[x+windowx1]-windowy1); if (y2ve[0] <= y1ve[0]) continue; palookupoffse[0] = fpalookup+(getpalookup((long)mulscale16(swal[x],globvis),globalshade)<<8); bufplce[0] = lwal[x] + globalxpanning; if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; } if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy; vince[0] = swal[x]*globalyscale; vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1); mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],p+ylookup[y1ve[0]]); } #endif faketimerhandler(); } // // wallfront (internal) // static long wallfront(long l1, long l2) { walltype *wal; long x11, y11, x21, y21, x12, y12, x22, y22, dx, dy, t1, t2; wal = &wall[thewall[l1]]; x11 = wal->x; y11 = wal->y; wal = &wall[wal->point2]; x21 = wal->x; y21 = wal->y; wal = &wall[thewall[l2]]; x12 = wal->x; y12 = wal->y; wal = &wall[wal->point2]; x22 = wal->x; y22 = wal->y; dx = x21-x11; dy = y21-y11; t1 = dmulscale2(x12-x11,dy,-dx,y12-y11); //p1(l2) vs. l1 t2 = dmulscale2(x22-x11,dy,-dx,y22-y11); //p2(l2) vs. l1 if (t1 == 0) { t1 = t2; if (t1 == 0) return(-1); } if (t2 == 0) t2 = t1; if ((t1^t2) >= 0) { t2 = dmulscale2(globalposx-x11,dy,-dx,globalposy-y11); //pos vs. l1 return((t2^t1) >= 0); } dx = x22-x12; dy = y22-y12; t1 = dmulscale2(x11-x12,dy,-dx,y11-y12); //p1(l1) vs. l2 t2 = dmulscale2(x21-x12,dy,-dx,y21-y12); //p2(l1) vs. l2 if (t1 == 0) { t1 = t2; if (t1 == 0) return(-1); } if (t2 == 0) t2 = t1; if ((t1^t2) >= 0) { t2 = dmulscale2(globalposx-x12,dy,-dx,globalposy-y12); //pos vs. l2 return((t2^t1) < 0); } return(-2); } // // spritewallfront (internal) // static long spritewallfront(spritetype *s, long w) { walltype *wal; long x1, y1; wal = &wall[w]; x1 = wal->x; y1 = wal->y; wal = &wall[wal->point2]; return (dmulscale32(wal->x-x1,s->y-y1,-(s->x-x1),wal->y-y1) >= 0); } // // spritebehindwall(internal) // static long spriteobstructswall(spritetype *s, long w) { walltype *wal; long x, y; long x1, y1; long x2, y2; double a1, b1, c1; double a2, b2, c2; double d1, d2; // wall line equation wal = &wall[w]; x1 = wal->x - globalposx; y1 = wal->y - globalposy; wal = &wall[wal->point2]; x2 = wal->x - globalposx; y2 = wal->y - globalposy; if ((x2 - x1) != 0) a1 = (float)(y2 - y1)/(x2 - x1); else a1 = 1e+37; // not infinite, but almost ;) b1 = -1; c1 = (y1 - (a1 * x1)); // player to sprite line equation if ((s->x - globalposx) != 0) a2 = (float)(s->y - globalposy)/(s->x - globalposx); else a2 = 1e+37; b2 = -1; c2 = 0; // intersection point d1 = (float)(1) / (a1*b2 - a2*b1); x = ((b1*c2 - b2*c1) * d1); y = ((a2*c1 - a1*c2) * d1); // distance between the sprite and the player a1 = s->x - globalposx; b1 = s->y - globalposy; d1 = (a1 * a1 + b1 * b1); // distance between the intersection point and the player d2 = (x * x + y * y); // check if the sprite obstructs the wall if ((d1 < d2) && (min(x1, x2) <= x) && (x <= max(x1, x2)) && (min(y1, y2) <= y) && (y <= max(y1, y2))) return (1); else return (0); } // // bunchfront (internal) // static long bunchfront(long b1, long b2) { long x1b1, x2b1, x1b2, x2b2, b1f, b2f, i; b1f = bunchfirst[b1]; x1b1 = xb1[b1f]; x2b2 = xb2[bunchlast[b2]]+1; if (x1b1 >= x2b2) return(-1); b2f = bunchfirst[b2]; x1b2 = xb1[b2f]; x2b1 = xb2[bunchlast[b1]]+1; if (x1b2 >= x2b1) return(-1); if (x1b1 >= x1b2) { for (i=b2f;xb2[i] xr) return; r = horizlookup2[yp-globalhoriz+horizycent]; asm1 = globalx1*r; asm2 = globaly2*r; s = ((long)getpalookup((long)mulscale16(r,globvis),globalshade)<<8); hlineasm4(xr-xl,0L,s,globalx2*r+globalypanning,globaly1*r+globalxpanning, ylookup[yp]+xr+frameoffset); } // // slowhline (internal) // static void slowhline(long xr, long yp) { long xl, r; xl = lastx[yp]; if (xl > xr) return; r = horizlookup2[yp-globalhoriz+horizycent]; asm1 = globalx1*r; asm2 = globaly2*r; asm3 = (long)globalpalwritten + ((long)getpalookup((long)mulscale16(r,globvis),globalshade)<<8); if (!(globalorientation&256)) { mhline(globalbufplc,globaly1*r+globalxpanning-asm1*(xr-xl),(xr-xl)<<16,0L, globalx2*r+globalypanning-asm2*(xr-xl),ylookup[yp]+xl+frameoffset); return; } thline(globalbufplc,globaly1*r+globalxpanning-asm1*(xr-xl),(xr-xl)<<16,0L, globalx2*r+globalypanning-asm2*(xr-xl),ylookup[yp]+xl+frameoffset); } // // prepwall (internal) // static void prepwall(long z, walltype *wal) { long i, l=0, ol=0, splc, sinc, x, topinc, top, botinc, bot, walxrepeat; walxrepeat = (wal->xrepeat<<3); //lwall calculation i = xb1[z]-halfxdimen; topinc = -(ry1[z]>>2); botinc = ((ry2[z]-ry1[z])>>8); top = mulscale5(rx1[z],xdimen)+mulscale2(topinc,i); bot = mulscale11(rx1[z]-rx2[z],xdimen)+mulscale2(botinc,i); splc = mulscale19(ry1[z],xdimscale); sinc = mulscale16(ry2[z]-ry1[z],xdimscale); x = xb1[z]; if (bot != 0) { l = divscale12(top,bot); swall[x] = mulscale21(l,sinc)+splc; l *= walxrepeat; lwall[x] = (l>>18); } while (x+4 <= xb2[z]) { top += topinc; bot += botinc; if (bot != 0) { ol = l; l = divscale12(top,bot); swall[x+4] = mulscale21(l,sinc)+splc; l *= walxrepeat; lwall[x+4] = (l>>18); } i = ((ol+l)>>1); lwall[x+2] = (i>>18); lwall[x+1] = ((ol+i)>>19); lwall[x+3] = ((l+i)>>19); swall[x+2] = ((swall[x]+swall[x+4])>>1); swall[x+1] = ((swall[x]+swall[x+2])>>1); swall[x+3] = ((swall[x+4]+swall[x+2])>>1); x += 4; } if (x+2 <= xb2[z]) { top += (topinc>>1); bot += (botinc>>1); if (bot != 0) { ol = l; l = divscale12(top,bot); swall[x+2] = mulscale21(l,sinc)+splc; l *= walxrepeat; lwall[x+2] = (l>>18); } lwall[x+1] = ((l+ol)>>19); swall[x+1] = ((swall[x]+swall[x+2])>>1); x += 2; } if (x+1 <= xb2[z]) { bot += (botinc>>2); if (bot != 0) { l = divscale12(top+(topinc>>2),bot); swall[x+1] = mulscale21(l,sinc)+splc; lwall[x+1] = mulscale18(l,walxrepeat); } } if (lwall[xb1[z]] < 0) lwall[xb1[z]] = 0; if ((lwall[xb2[z]] >= walxrepeat) && (walxrepeat)) lwall[xb2[z]] = walxrepeat-1; if (wal->cstat&8) { walxrepeat--; for (x=xb1[z];x<=xb2[z];x++) lwall[x] = walxrepeat-lwall[x]; } } // // animateoffs (internal) // long animateoffs(short tilenum, short fakevar) { long i, k, offs; offs = 0; i = (totalclocklock>>((picanm[tilenum]>>24)&15)); if ((picanm[tilenum]&63) > 0) { switch (picanm[tilenum]&192) { case 64: k = (i%((picanm[tilenum]&63)<<1)); if (k < (picanm[tilenum]&63)) offs = k; else offs = (((picanm[tilenum]&63)<<1)-k); break; case 128: offs = (i%((picanm[tilenum]&63)+1)); break; case 192: offs = -(i%((picanm[tilenum]&63)+1)); } } return(offs); } // // owallmost (internal) // static long owallmost(short *mostbuf, long w, long z) { long bad, inty, xcross, y, yinc; long s1, s2, s3, s4, ix1, ix2, iy1, iy2, t; long i; z <<= 7; s1 = mulscale20(globaluclip,yb1[w]); s2 = mulscale20(globaluclip,yb2[w]); s3 = mulscale20(globaldclip,yb1[w]); s4 = mulscale20(globaldclip,yb2[w]); bad = (zs3)<<2)+((z>s4)<<3); ix1 = xb1[w]; iy1 = yb1[w]; ix2 = xb2[w]; iy2 = yb2[w]; if ((bad&3) == 3) { //clearbufbyte(&mostbuf[ix1],(ix2-ix1+1)*sizeof(mostbuf[0]),0L); for (i=ix1; i<=ix2; i++) mostbuf[i] = 0; return(bad); } if ((bad&12) == 12) { //clearbufbyte(&mostbuf[ix1],(ix2-ix1+1)*sizeof(mostbuf[0]),ydimen+(ydimen<<16)); for (i=ix1; i<=ix2; i++) mostbuf[i] = ydimen; return(bad); } if (bad&3) { t = divscale30(z-s1,s2-s1); inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t); xcross = xb1[w] + scale(mulscale30(yb2[w],t),xb2[w]-xb1[w],inty); if ((bad&3) == 2) { if (xb1[w] <= xcross) { iy2 = inty; ix2 = xcross; } //clearbufbyte(&mostbuf[xcross+1],(xb2[w]-xcross)*sizeof(mostbuf[0]),0L); for (i=xcross+1; i<=xb2[w]; i++) mostbuf[i] = 0; } else { if (xcross <= xb2[w]) { iy1 = inty; ix1 = xcross; } //clearbufbyte(&mostbuf[xb1[w]],(xcross-xb1[w]+1)*sizeof(mostbuf[0]),0L); for (i=xb1[w]; i<=xcross; i++) mostbuf[i] = 0; } } if (bad&12) { t = divscale30(z-s3,s4-s3); inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t); xcross = xb1[w] + scale(mulscale30(yb2[w],t),xb2[w]-xb1[w],inty); if ((bad&12) == 8) { if (xb1[w] <= xcross) { iy2 = inty; ix2 = xcross; } //clearbufbyte(&mostbuf[xcross+1],(xb2[w]-xcross)*sizeof(mostbuf[0]),ydimen+(ydimen<<16)); for (i=xcross+1; i<=xb2[w]; i++) mostbuf[i] = ydimen; } else { if (xcross <= xb2[w]) { iy1 = inty; ix1 = xcross; } //clearbufbyte(&mostbuf[xb1[w]],(xcross-xb1[w]+1)*sizeof(mostbuf[0]),ydimen+(ydimen<<16)); for (i=xb1[w]; i<=xcross; i++) mostbuf[i] = ydimen; } } y = (scale(z,xdimenscale,iy1)<<4); yinc = ((scale(z,xdimenscale,iy2)<<4)-y) / (ix2-ix1+1); qinterpolatedown16short((long)&mostbuf[ix1],ix2-ix1+1,y+(globalhoriz<<16),yinc); if (mostbuf[ix1] < 0) mostbuf[ix1] = 0; if (mostbuf[ix1] > ydimen) mostbuf[ix1] = ydimen; if (mostbuf[ix2] < 0) mostbuf[ix2] = 0; if (mostbuf[ix2] > ydimen) mostbuf[ix2] = ydimen; return(bad); } // // wallmost (internal) // static long wallmost(short *mostbuf, long w, long sectnum, char dastat) { long bad, i, j, t, y, z, inty, intz, xcross, yinc, fw; long x1, y1, z1, x2, y2, z2, xv, yv, dx, dy, dasqr, oz1, oz2; long s1, s2, s3, s4, ix1, ix2, iy1, iy2; //char datempbuf[256]; if (dastat == 0) { z = sector[sectnum].ceilingz-globalposz; if ((sector[sectnum].ceilingstat&2) == 0) return(owallmost(mostbuf,w,z)); } else { z = sector[sectnum].floorz-globalposz; if ((sector[sectnum].floorstat&2) == 0) return(owallmost(mostbuf,w,z)); } i = thewall[w]; if (i == sector[sectnum].wallptr) return(owallmost(mostbuf,w,z)); x1 = wall[i].x; x2 = wall[wall[i].point2].x-x1; y1 = wall[i].y; y2 = wall[wall[i].point2].y-y1; fw = sector[sectnum].wallptr; i = wall[fw].point2; dx = wall[i].x-wall[fw].x; dy = wall[i].y-wall[fw].y; dasqr = krecipasm(nsqrtasm(dx*dx+dy*dy)); if (xb1[w] == 0) { xv = cosglobalang+sinviewingrangeglobalang; yv = singlobalang-cosviewingrangeglobalang; } else { xv = x1-globalposx; yv = y1-globalposy; } i = xv*(y1-globalposy)-yv*(x1-globalposx); j = yv*x2-xv*y2; if (klabs(j) > klabs(i>>3)) i = divscale28(i,j); if (dastat == 0) { t = mulscale15(sector[sectnum].ceilingheinum,dasqr); z1 = sector[sectnum].ceilingz; } else { t = mulscale15(sector[sectnum].floorheinum,dasqr); z1 = sector[sectnum].floorz; } z1 = dmulscale24(dx*t,mulscale20(y2,i)+((y1-wall[fw].y)<<8), -dy*t,mulscale20(x2,i)+((x1-wall[fw].x)<<8))+((z1-globalposz)<<7); if (xb2[w] == xdimen-1) { xv = cosglobalang-sinviewingrangeglobalang; yv = singlobalang+cosviewingrangeglobalang; } else { xv = (x2+x1)-globalposx; yv = (y2+y1)-globalposy; } i = xv*(y1-globalposy)-yv*(x1-globalposx); j = yv*x2-xv*y2; if (klabs(j) > klabs(i>>3)) i = divscale28(i,j); if (dastat == 0) { t = mulscale15(sector[sectnum].ceilingheinum,dasqr); z2 = sector[sectnum].ceilingz; } else { t = mulscale15(sector[sectnum].floorheinum,dasqr); z2 = sector[sectnum].floorz; } z2 = dmulscale24(dx*t,mulscale20(y2,i)+((y1-wall[fw].y)<<8), -dy*t,mulscale20(x2,i)+((x1-wall[fw].x)<<8))+((z2-globalposz)<<7); s1 = mulscale20(globaluclip,yb1[w]); s2 = mulscale20(globaluclip,yb2[w]); s3 = mulscale20(globaldclip,yb1[w]); s4 = mulscale20(globaldclip,yb2[w]); bad = (z1s3)<<2)+((z2>s4)<<3); ix1 = xb1[w]; ix2 = xb2[w]; iy1 = yb1[w]; iy2 = yb2[w]; oz1 = z1; oz2 = z2; if ((bad&3) == 3) { //clearbufbyte(&mostbuf[ix1],(ix2-ix1+1)*sizeof(mostbuf[0]),0L); for (i=ix1; i<=ix2; i++) mostbuf[i] = 0; return(bad); } if ((bad&12) == 12) { //clearbufbyte(&mostbuf[ix1],(ix2-ix1+1)*sizeof(mostbuf[0]),ydimen+(ydimen<<16)); for (i=ix1; i<=ix2; i++) mostbuf[i] = ydimen; return(bad); } if (bad&3) { //inty = intz / (globaluclip>>16) t = divscale30(oz1-s1,s2-s1+oz1-oz2); inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t); intz = oz1 + mulscale30(oz2-oz1,t); xcross = xb1[w] + scale(mulscale30(yb2[w],t),xb2[w]-xb1[w],inty); //t = divscale30((x1<<4)-xcross*yb1[w],xcross*(yb2[w]-yb1[w])-((x2-x1)<<4)); //inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t); //intz = z1 + mulscale30(z2-z1,t); if ((bad&3) == 2) { if (xb1[w] <= xcross) { z2 = intz; iy2 = inty; ix2 = xcross; } //clearbufbyte(&mostbuf[xcross+1],(xb2[w]-xcross)*sizeof(mostbuf[0]),0L); for (i=xcross+1; i<=xb2[w]; i++) mostbuf[i] = 0; } else { if (xcross <= xb2[w]) { z1 = intz; iy1 = inty; ix1 = xcross; } //clearbufbyte(&mostbuf[xb1[w]],(xcross-xb1[w]+1)*sizeof(mostbuf[0]),0L); for (i=xb1[w]; i<=xcross; i++) mostbuf[i] = 0; } } if (bad&12) { //inty = intz / (globaldclip>>16) t = divscale30(oz1-s3,s4-s3+oz1-oz2); inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t); intz = oz1 + mulscale30(oz2-oz1,t); xcross = xb1[w] + scale(mulscale30(yb2[w],t),xb2[w]-xb1[w],inty); //t = divscale30((x1<<4)-xcross*yb1[w],xcross*(yb2[w]-yb1[w])-((x2-x1)<<4)); //inty = yb1[w] + mulscale30(yb2[w]-yb1[w],t); //intz = z1 + mulscale30(z2-z1,t); if ((bad&12) == 8) { if (xb1[w] <= xcross) { z2 = intz; iy2 = inty; ix2 = xcross; } //clearbufbyte(&mostbuf[xcross+1],(xb2[w]-xcross)*sizeof(mostbuf[0]),ydimen+(ydimen<<16)); for (i=xcross+1; i<=xb2[w]; i++) mostbuf[i] = ydimen; } else { if (xcross <= xb2[w]) { z1 = intz; iy1 = inty; ix1 = xcross; } //clearbufbyte(&mostbuf[xb1[w]],(xcross-xb1[w]+1)*sizeof(mostbuf[0]),ydimen+(ydimen<<16)); for (i=xb1[w]; i<=xcross; i++) mostbuf[i] = ydimen; } } y = (scale(z1,xdimenscale,iy1)<<4); yinc = ((scale(z2,xdimenscale,iy2)<<4)-y) / (ix2-ix1+1); qinterpolatedown16short((long)&mostbuf[ix1],ix2-ix1+1,y+(globalhoriz<<16),yinc); if (mostbuf[ix1] < 0) mostbuf[ix1] = 0; if (mostbuf[ix1] > ydimen) mostbuf[ix1] = ydimen; if (mostbuf[ix2] < 0) mostbuf[ix2] = 0; if (mostbuf[ix2] > ydimen) mostbuf[ix2] = ydimen; return(bad); } // // ceilscan (internal) // static void ceilscan(long x1, long x2, long sectnum) { long i, j, ox, oy, x, y1, y2, twall, bwall; sectortype *sec; sec = §or[sectnum]; if (palookup[sec->ceilingpal] != globalpalwritten) { globalpalwritten = palookup[sec->ceilingpal]; if (!globalpalwritten) globalpalwritten = palookup[globalpal]; // JBF: fixes null-pointer crash setpalookupaddress(globalpalwritten); } globalzd = sec->ceilingz-globalposz; if (globalzd > 0) return; globalpicnum = sec->ceilingpicnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; setgotpic(globalpicnum); if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) return; if (picanm[globalpicnum]&192) globalpicnum += animateoffs((short)globalpicnum,(short)sectnum); if (waloff[globalpicnum] == 0) loadtile(globalpicnum); globalbufplc = waloff[globalpicnum]; globalshade = (long)sec->ceilingshade; globvis = globalcisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalorientation = (long)sec->ceilingstat; if ((globalorientation&64) == 0) { globalx1 = singlobalang; globalx2 = singlobalang; globaly1 = cosglobalang; globaly2 = cosglobalang; globalxpanning = (globalposx<<20); globalypanning = -(globalposy<<20); } else { j = sec->wallptr; ox = wall[wall[j].point2].x - wall[j].x; oy = wall[wall[j].point2].y - wall[j].y; i = nsqrtasm(ox*ox+oy*oy); if (i == 0) i = 1024; else i = 1048576/i; globalx1 = mulscale10(dmulscale10(ox,singlobalang,-oy,cosglobalang),i); globaly1 = mulscale10(dmulscale10(ox,cosglobalang,oy,singlobalang),i); globalx2 = -globalx1; globaly2 = -globaly1; ox = ((wall[j].x-globalposx)<<6); oy = ((wall[j].y-globalposy)<<6); i = dmulscale14(oy,cosglobalang,-ox,singlobalang); j = dmulscale14(ox,cosglobalang,oy,singlobalang); ox = i; oy = j; globalxpanning = globalx1*ox - globaly1*oy; globalypanning = globaly2*ox + globalx2*oy; } globalx2 = mulscale16(globalx2,viewingrangerecip); globaly1 = mulscale16(globaly1,viewingrangerecip); globalxshift = (8-(picsiz[globalpicnum]&15)); globalyshift = (8-(picsiz[globalpicnum]>>4)); if (globalorientation&8) { globalxshift++; globalyshift++; } if ((globalorientation&0x4) > 0) { i = globalxpanning; globalxpanning = globalypanning; globalypanning = i; i = globalx2; globalx2 = -globaly1; globaly1 = -i; i = globalx1; globalx1 = globaly2; globaly2 = i; } if ((globalorientation&0x10) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalxpanning = -globalxpanning; if ((globalorientation&0x20) > 0) globalx2 = -globalx2, globaly2 = -globaly2, globalypanning = -globalypanning; globalx1 <<= globalxshift; globaly1 <<= globalxshift; globalx2 <<= globalyshift; globaly2 <<= globalyshift; globalxpanning <<= globalxshift; globalypanning <<= globalyshift; globalxpanning += (((long)sec->ceilingxpanning)<<24); globalypanning += (((long)sec->ceilingypanning)<<24); globaly1 = (-globalx1-globaly1)*halfxdimen; globalx2 = (globalx2-globaly2)*halfxdimen; sethlinesizes(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4,globalbufplc); globalx2 += globaly2*(x1-1); globaly1 += globalx1*(x1-1); globalx1 = mulscale16(globalx1,globalzd); globalx2 = mulscale16(globalx2,globalzd); globaly1 = mulscale16(globaly1,globalzd); globaly2 = mulscale16(globaly2,globalzd); globvis = klabs(mulscale10(globvis,globalzd)); if (!(globalorientation&0x180)) { y1 = umost[x1]; y2 = y1; for (x=x1;x<=x2;x++) { twall = umost[x]-1; bwall = min(uplc[x],dmost[x]); if (twall < bwall-1) { if (twall >= y2) { while (y1 < y2-1) hline(x-1,++y1); y1 = twall; } else { while (y1 < twall) hline(x-1,++y1); while (y1 > twall) lastx[y1--] = x; } while (y2 > bwall) hline(x-1,--y2); while (y2 < bwall) lastx[y2++] = x; } else { while (y1 < y2-1) hline(x-1,++y1); if (x == x2) { globalx2 += globaly2; globaly1 += globalx1; break; } y1 = umost[x+1]; y2 = y1; } globalx2 += globaly2; globaly1 += globalx1; } while (y1 < y2-1) hline(x2,++y1); faketimerhandler(); return; } switch (globalorientation&0x180) { case 128: msethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4); break; case 256: settransnormal(); tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4); break; case 384: settransreverse(); tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4); break; } y1 = umost[x1]; y2 = y1; for (x=x1;x<=x2;x++) { twall = umost[x]-1; bwall = min(uplc[x],dmost[x]); if (twall < bwall-1) { if (twall >= y2) { while (y1 < y2-1) slowhline(x-1,++y1); y1 = twall; } else { while (y1 < twall) slowhline(x-1,++y1); while (y1 > twall) lastx[y1--] = x; } while (y2 > bwall) slowhline(x-1,--y2); while (y2 < bwall) lastx[y2++] = x; } else { while (y1 < y2-1) slowhline(x-1,++y1); if (x == x2) { globalx2 += globaly2; globaly1 += globalx1; break; } y1 = umost[x+1]; y2 = y1; } globalx2 += globaly2; globaly1 += globalx1; } while (y1 < y2-1) slowhline(x2,++y1); faketimerhandler(); } // // florscan (internal) // static void florscan(long x1, long x2, long sectnum) { long i, j, ox, oy, x, y1, y2, twall, bwall; sectortype *sec; sec = §or[sectnum]; if (palookup[sec->floorpal] != globalpalwritten) { globalpalwritten = palookup[sec->floorpal]; if (!globalpalwritten) globalpalwritten = palookup[globalpal]; // JBF: fixes null-pointer crash setpalookupaddress(globalpalwritten); } globalzd = globalposz-sec->floorz; if (globalzd > 0) return; globalpicnum = sec->floorpicnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; setgotpic(globalpicnum); if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) return; if (picanm[globalpicnum]&192) globalpicnum += animateoffs((short)globalpicnum,(short)sectnum); if (waloff[globalpicnum] == 0) loadtile(globalpicnum); globalbufplc = waloff[globalpicnum]; globalshade = (long)sec->floorshade; globvis = globalcisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalorientation = (long)sec->floorstat; if ((globalorientation&64) == 0) { globalx1 = singlobalang; globalx2 = singlobalang; globaly1 = cosglobalang; globaly2 = cosglobalang; globalxpanning = (globalposx<<20); globalypanning = -(globalposy<<20); } else { j = sec->wallptr; ox = wall[wall[j].point2].x - wall[j].x; oy = wall[wall[j].point2].y - wall[j].y; i = nsqrtasm(ox*ox+oy*oy); if (i == 0) i = 1024; else i = 1048576/i; globalx1 = mulscale10(dmulscale10(ox,singlobalang,-oy,cosglobalang),i); globaly1 = mulscale10(dmulscale10(ox,cosglobalang,oy,singlobalang),i); globalx2 = -globalx1; globaly2 = -globaly1; ox = ((wall[j].x-globalposx)<<6); oy = ((wall[j].y-globalposy)<<6); i = dmulscale14(oy,cosglobalang,-ox,singlobalang); j = dmulscale14(ox,cosglobalang,oy,singlobalang); ox = i; oy = j; globalxpanning = globalx1*ox - globaly1*oy; globalypanning = globaly2*ox + globalx2*oy; } globalx2 = mulscale16(globalx2,viewingrangerecip); globaly1 = mulscale16(globaly1,viewingrangerecip); globalxshift = (8-(picsiz[globalpicnum]&15)); globalyshift = (8-(picsiz[globalpicnum]>>4)); if (globalorientation&8) { globalxshift++; globalyshift++; } if ((globalorientation&0x4) > 0) { i = globalxpanning; globalxpanning = globalypanning; globalypanning = i; i = globalx2; globalx2 = -globaly1; globaly1 = -i; i = globalx1; globalx1 = globaly2; globaly2 = i; } if ((globalorientation&0x10) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalxpanning = -globalxpanning; if ((globalorientation&0x20) > 0) globalx2 = -globalx2, globaly2 = -globaly2, globalypanning = -globalypanning; globalx1 <<= globalxshift; globaly1 <<= globalxshift; globalx2 <<= globalyshift; globaly2 <<= globalyshift; globalxpanning <<= globalxshift; globalypanning <<= globalyshift; globalxpanning += (((long)sec->floorxpanning)<<24); globalypanning += (((long)sec->floorypanning)<<24); globaly1 = (-globalx1-globaly1)*halfxdimen; globalx2 = (globalx2-globaly2)*halfxdimen; sethlinesizes(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4,globalbufplc); globalx2 += globaly2*(x1-1); globaly1 += globalx1*(x1-1); globalx1 = mulscale16(globalx1,globalzd); globalx2 = mulscale16(globalx2,globalzd); globaly1 = mulscale16(globaly1,globalzd); globaly2 = mulscale16(globaly2,globalzd); globvis = klabs(mulscale10(globvis,globalzd)); if (!(globalorientation&0x180)) { y1 = max(dplc[x1],umost[x1]); y2 = y1; for (x=x1;x<=x2;x++) { twall = max(dplc[x],umost[x])-1; bwall = dmost[x]; if (twall < bwall-1) { if (twall >= y2) { while (y1 < y2-1) hline(x-1,++y1); y1 = twall; } else { while (y1 < twall) hline(x-1,++y1); while (y1 > twall) lastx[y1--] = x; } while (y2 > bwall) hline(x-1,--y2); while (y2 < bwall) lastx[y2++] = x; } else { while (y1 < y2-1) hline(x-1,++y1); if (x == x2) { globalx2 += globaly2; globaly1 += globalx1; break; } y1 = max(dplc[x+1],umost[x+1]); y2 = y1; } globalx2 += globaly2; globaly1 += globalx1; } while (y1 < y2-1) hline(x2,++y1); faketimerhandler(); return; } switch (globalorientation&0x180) { case 128: msethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4); break; case 256: settransnormal(); tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4); break; case 384: settransreverse(); tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4); break; } y1 = max(dplc[x1],umost[x1]); y2 = y1; for (x=x1;x<=x2;x++) { twall = max(dplc[x],umost[x])-1; bwall = dmost[x]; if (twall < bwall-1) { if (twall >= y2) { while (y1 < y2-1) slowhline(x-1,++y1); y1 = twall; } else { while (y1 < twall) slowhline(x-1,++y1); while (y1 > twall) lastx[y1--] = x; } while (y2 > bwall) slowhline(x-1,--y2); while (y2 < bwall) lastx[y2++] = x; } else { while (y1 < y2-1) slowhline(x-1,++y1); if (x == x2) { globalx2 += globaly2; globaly1 += globalx1; break; } y1 = max(dplc[x+1],umost[x+1]); y2 = y1; } globalx2 += globaly2; globaly1 += globalx1; } while (y1 < y2-1) slowhline(x2,++y1); faketimerhandler(); } // // wallscan (internal) // static void wallscan(long x1, long x2, short *uwal, short *dwal, long *swal, long *lwal) { long i, x, xnice, ynice, fpalookup; long y1ve[4], y2ve[4], u4, d4, z, tsizx, tsizy; char bad; tsizx = tilesizx[globalpicnum]; tsizy = tilesizy[globalpicnum]; setgotpic(globalpicnum); if ((tsizx <= 0) || (tsizy <= 0)) return; if ((uwal[x1] > ydimen) && (uwal[x2] > ydimen)) return; if ((dwal[x1] < 0) && (dwal[x2] < 0)) return; if (waloff[globalpicnum] == 0) loadtile(globalpicnum); xnice = (pow2long[picsiz[globalpicnum]&15] == tsizx); if (xnice) tsizx--; ynice = (pow2long[picsiz[globalpicnum]>>4] == tsizy); if (ynice) tsizy = (picsiz[globalpicnum]>>4); fpalookup = FP_OFF(palookup[globalpal]); setupvlineasm(globalshiftval); #ifndef ENGINE_USING_A_C x = x1; while ((umost[x] > dmost[x]) && (x <= x2)) x++; for (;(x<=x2)&&((x+frameoffset)&3);x++) { y1ve[0] = max(uwal[x],umost[x]); y2ve[0] = min(dwal[x],dmost[x]); if (y2ve[0] <= y1ve[0]) continue; palookupoffse[0] = fpalookup+(getpalookup((long)mulscale16(swal[x],globvis),globalshade)<<8); bufplce[0] = lwal[x] + globalxpanning; if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; } if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy; vince[0] = swal[x]*globalyscale; vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1); vlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],x+frameoffset+ylookup[y1ve[0]]); } for (;x<=x2-3;x+=4) { bad = 0; for (z=3;z>=0;z--) { y1ve[z] = max(uwal[x+z],umost[x+z]); y2ve[z] = min(dwal[x+z],dmost[x+z])-1; if (y2ve[z] < y1ve[z]) { bad += pow2char[z]; continue; } i = lwal[x+z] + globalxpanning; if (i >= tsizx) { if (xnice == 0) i %= tsizx; else i &= tsizx; } if (ynice == 0) i *= tsizy; else i <<= tsizy; bufplce[z] = waloff[globalpicnum]+i; vince[z] = swal[x+z]*globalyscale; vplce[z] = globalzd + vince[z]*(y1ve[z]-globalhoriz+1); } if (bad == 15) continue; palookupoffse[0] = fpalookup+(getpalookup((long)mulscale16(swal[x],globvis),globalshade)<<8); palookupoffse[3] = fpalookup+(getpalookup((long)mulscale16(swal[x+3],globvis),globalshade)<<8); if ((palookupoffse[0] == palookupoffse[3]) && ((bad&0x9) == 0)) { palookupoffse[1] = palookupoffse[0]; palookupoffse[2] = palookupoffse[0]; } else { palookupoffse[1] = fpalookup+(getpalookup((long)mulscale16(swal[x+1],globvis),globalshade)<<8); palookupoffse[2] = fpalookup+(getpalookup((long)mulscale16(swal[x+2],globvis),globalshade)<<8); } u4 = max(max(y1ve[0],y1ve[1]),max(y1ve[2],y1ve[3])); d4 = min(min(y2ve[0],y2ve[1]),min(y2ve[2],y2ve[3])); if ((bad != 0) || (u4 >= d4)) { if (!(bad&1)) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0],vplce[0],bufplce[0],ylookup[y1ve[0]]+x+frameoffset+0); if (!(bad&2)) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-y1ve[1],vplce[1],bufplce[1],ylookup[y1ve[1]]+x+frameoffset+1); if (!(bad&4)) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-y1ve[2],vplce[2],bufplce[2],ylookup[y1ve[2]]+x+frameoffset+2); if (!(bad&8)) prevlineasm1(vince[3],palookupoffse[3],y2ve[3]-y1ve[3],vplce[3],bufplce[3],ylookup[y1ve[3]]+x+frameoffset+3); continue; } if (u4 > y1ve[0]) vplce[0] = prevlineasm1(vince[0],palookupoffse[0],u4-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+x+frameoffset+0); if (u4 > y1ve[1]) vplce[1] = prevlineasm1(vince[1],palookupoffse[1],u4-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+x+frameoffset+1); if (u4 > y1ve[2]) vplce[2] = prevlineasm1(vince[2],palookupoffse[2],u4-y1ve[2]-1,vplce[2],bufplce[2],ylookup[y1ve[2]]+x+frameoffset+2); if (u4 > y1ve[3]) vplce[3] = prevlineasm1(vince[3],palookupoffse[3],u4-y1ve[3]-1,vplce[3],bufplce[3],ylookup[y1ve[3]]+x+frameoffset+3); if (d4 >= u4) vlineasm4(d4-u4+1,ylookup[u4]+x+frameoffset); i = x+frameoffset+ylookup[d4+1]; if (y2ve[0] > d4) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0); if (y2ve[1] > d4) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1); if (y2ve[2] > d4) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2); if (y2ve[3] > d4) prevlineasm1(vince[3],palookupoffse[3],y2ve[3]-d4-1,vplce[3],bufplce[3],i+3); } for (;x<=x2;x++) { y1ve[0] = max(uwal[x],umost[x]); y2ve[0] = min(dwal[x],dmost[x]); if (y2ve[0] <= y1ve[0]) continue; palookupoffse[0] = fpalookup+(getpalookup((long)mulscale16(swal[x],globvis),globalshade)<<8); bufplce[0] = lwal[x] + globalxpanning; if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; } if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy; vince[0] = swal[x]*globalyscale; vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1); vlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],x+frameoffset+ylookup[y1ve[0]]); } #else // ENGINE_USING_A_C for (x=x1;x<=x2;x++) { y1ve[0] = max(uwal[x],umost[x]); y2ve[0] = min(dwal[x],dmost[x]); if (y2ve[0] <= y1ve[0]) continue; palookupoffse[0] = fpalookup+(getpalookup((long)mulscale16(swal[x],globvis),globalshade)<<8); bufplce[0] = lwal[x] + globalxpanning; if (bufplce[0] >= tsizx) { if (xnice == 0) bufplce[0] %= tsizx; else bufplce[0] &= tsizx; } if (ynice == 0) bufplce[0] *= tsizy; else bufplce[0] <<= tsizy; vince[0] = swal[x]*globalyscale; vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1); vlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0]-1,vplce[0],bufplce[0]+waloff[globalpicnum],x+frameoffset+ylookup[y1ve[0]]); } #endif faketimerhandler(); } // // transmaskvline (internal) // static void transmaskvline(long x) { long vplc, vinc, p, i, palookupoffs, bufplc; short y1v, y2v; if ((x < 0) || (x >= xdimen)) return; y1v = max(uwall[x],startumost[x+windowx1]-windowy1); y2v = min(dwall[x],startdmost[x+windowx1]-windowy1); y2v--; if (y2v < y1v) return; palookupoffs = FP_OFF(palookup[globalpal]) + (getpalookup((long)mulscale16(swall[x],globvis),globalshade)<<8); vinc = swall[x]*globalyscale; vplc = globalzd + vinc*(y1v-globalhoriz+1); i = lwall[x]+globalxpanning; if (i >= tilesizx[globalpicnum]) i %= tilesizx[globalpicnum]; bufplc = waloff[globalpicnum]+i*tilesizy[globalpicnum]; p = ylookup[y1v]+x+frameoffset; tvlineasm1(vinc,palookupoffs,y2v-y1v,vplc,bufplc,p); } // // transmaskvline2 (internal) // #ifndef ENGINE_USING_A_C static void transmaskvline2(long x) { long i, y1, y2, x2; short y1ve[2], y2ve[2]; if ((x < 0) || (x >= xdimen)) return; if (x == xdimen-1) { transmaskvline(x); return; } x2 = x+1; y1ve[0] = max(uwall[x],startumost[x+windowx1]-windowy1); y2ve[0] = min(dwall[x],startdmost[x+windowx1]-windowy1)-1; if (y2ve[0] < y1ve[0]) { transmaskvline(x2); return; } y1ve[1] = max(uwall[x2],startumost[x2+windowx1]-windowy1); y2ve[1] = min(dwall[x2],startdmost[x2+windowx1]-windowy1)-1; if (y2ve[1] < y1ve[1]) { transmaskvline(x); return; } palookupoffse[0] = FP_OFF(palookup[globalpal]) + (getpalookup((long)mulscale16(swall[x],globvis),globalshade)<<8); palookupoffse[1] = FP_OFF(palookup[globalpal]) + (getpalookup((long)mulscale16(swall[x2],globvis),globalshade)<<8); setuptvlineasm2(globalshiftval,palookupoffse[0],palookupoffse[1]); vince[0] = swall[x]*globalyscale; vince[1] = swall[x2]*globalyscale; vplce[0] = globalzd + vince[0]*(y1ve[0]-globalhoriz+1); vplce[1] = globalzd + vince[1]*(y1ve[1]-globalhoriz+1); i = lwall[x] + globalxpanning; if (i >= tilesizx[globalpicnum]) i %= tilesizx[globalpicnum]; bufplce[0] = waloff[globalpicnum]+i*tilesizy[globalpicnum]; i = lwall[x2] + globalxpanning; if (i >= tilesizx[globalpicnum]) i %= tilesizx[globalpicnum]; bufplce[1] = waloff[globalpicnum]+i*tilesizy[globalpicnum]; y1 = max(y1ve[0],y1ve[1]); y2 = min(y2ve[0],y2ve[1]); i = x+frameoffset; if (y1ve[0] != y1ve[1]) { if (y1ve[0] < y1) vplce[0] = tvlineasm1(vince[0],palookupoffse[0],y1-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+i); else vplce[1] = tvlineasm1(vince[1],palookupoffse[1],y1-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+i+1); } if (y2 > y1) { asm1 = vince[1]; asm2 = ylookup[y2]+i+1; tvlineasm2(vplce[1],vince[0],bufplce[0],bufplce[1],vplce[0],ylookup[y1]+i); } else { asm1 = vplce[0]; asm2 = vplce[1]; } if (y2ve[0] > y2ve[1]) tvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y2-1,asm1,bufplce[0],ylookup[y2+1]+i); else if (y2ve[0] < y2ve[1]) tvlineasm1(vince[1],palookupoffse[1],y2ve[1]-y2-1,asm2,bufplce[1],ylookup[y2+1]+i+1); faketimerhandler(); } #endif // // transmaskwallscan (internal) // static void transmaskwallscan(long x1, long x2) { long x; setgotpic(globalpicnum); if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) return; if (waloff[globalpicnum] == 0) loadtile(globalpicnum); setuptvlineasm(globalshiftval); x = x1; while ((startumost[x+windowx1] > startdmost[x+windowx1]) && (x <= x2)) x++; #ifndef ENGINE_USING_A_C if ((x <= x2) && (x&1)) transmaskvline(x), x++; while (x < x2) transmaskvline2(x), x += 2; #endif while (x <= x2) transmaskvline(x), x++; faketimerhandler(); } // // ceilspritehline (internal) // static void ceilspritehline(long x2, long y) { long x1, v, bx, by; //x = x1 + (x2-x1)t + (y1-y2)u ~ x = 160v //y = y1 + (y2-y1)t + (x2-x1)u ~ y = (scrx-160)v //z = z1 = z2 ~ z = posz + (scry-horiz)v x1 = lastx[y]; if (x2 < x1) return; v = mulscale20(globalzd,horizlookup[y-globalhoriz+horizycent]); bx = mulscale14(globalx2*x1+globalx1,v) + globalxpanning; by = mulscale14(globaly2*x1+globaly1,v) + globalypanning; asm1 = mulscale14(globalx2,v); asm2 = mulscale14(globaly2,v); asm3 = FP_OFF(palookup[globalpal]) + (getpalookup((long)mulscale28(klabs(v),globvis),globalshade)<<8); if ((globalorientation&2) == 0) mhline(globalbufplc,bx,(x2-x1)<<16,0L,by,ylookup[y]+x1+frameoffset); else { thline(globalbufplc,bx,(x2-x1)<<16,0L,by,ylookup[y]+x1+frameoffset); } } // // ceilspritescan (internal) // static void ceilspritescan(long x1, long x2) { long x, y1, y2, twall, bwall; y1 = uwall[x1]; y2 = y1; for (x=x1;x<=x2;x++) { twall = uwall[x]-1; bwall = dwall[x]; if (twall < bwall-1) { if (twall >= y2) { while (y1 < y2-1) ceilspritehline(x-1,++y1); y1 = twall; } else { while (y1 < twall) ceilspritehline(x-1,++y1); while (y1 > twall) lastx[y1--] = x; } while (y2 > bwall) ceilspritehline(x-1,--y2); while (y2 < bwall) lastx[y2++] = x; } else { while (y1 < y2-1) ceilspritehline(x-1,++y1); if (x == x2) break; y1 = uwall[x+1]; y2 = y1; } } while (y1 < y2-1) ceilspritehline(x2,++y1); faketimerhandler(); } // // grouscan (internal) // #define BITSOFPRECISION 3 //Don't forget to change this in A.ASM also! static void grouscan(long dax1, long dax2, long sectnum, char dastat) { long i, j, l, x, y, dx, dy, wx, wy, y1, y2, daz; long daslope, dasqr; long shoffs, shinc, m1, m2, *mptr1, *mptr2, *nptr1, *nptr2; walltype *wal; sectortype *sec; sec = §or[sectnum]; if (dastat == 0) { if (globalposz <= getceilzofslope(sectnum,globalposx,globalposy)) return; //Back-face culling globalorientation = sec->ceilingstat; globalpicnum = sec->ceilingpicnum; globalshade = sec->ceilingshade; globalpal = sec->ceilingpal; daslope = sec->ceilingheinum; daz = sec->ceilingz; } else { if (globalposz >= getflorzofslope(sectnum,globalposx,globalposy)) return; //Back-face culling globalorientation = sec->floorstat; globalpicnum = sec->floorpicnum; globalshade = sec->floorshade; globalpal = sec->floorpal; daslope = sec->floorheinum; daz = sec->floorz; } if ((picanm[globalpicnum]&192) != 0) globalpicnum += animateoffs(globalpicnum,sectnum); setgotpic(globalpicnum); if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) return; if (waloff[globalpicnum] == 0) loadtile(globalpicnum); wal = &wall[sec->wallptr]; wx = wall[wal->point2].x - wal->x; wy = wall[wal->point2].y - wal->y; dasqr = krecipasm(nsqrtasm(wx*wx+wy*wy)); i = mulscale21(daslope,dasqr); wx *= i; wy *= i; globalx = -mulscale19(singlobalang,xdimenrecip); globaly = mulscale19(cosglobalang,xdimenrecip); globalx1 = (globalposx<<8); globaly1 = -(globalposy<<8); i = (dax1-halfxdimen)*xdimenrecip; globalx2 = mulscale16(cosglobalang<<4,viewingrangerecip) - mulscale27(singlobalang,i); globaly2 = mulscale16(singlobalang<<4,viewingrangerecip) + mulscale27(cosglobalang,i); globalzd = (xdimscale<<9); globalzx = -dmulscale17(wx,globaly2,-wy,globalx2) + mulscale10(1-globalhoriz,globalzd); globalz = -dmulscale25(wx,globaly,-wy,globalx); if (globalorientation&64) //Relative alignment { dx = mulscale14(wall[wal->point2].x-wal->x,dasqr); dy = mulscale14(wall[wal->point2].y-wal->y,dasqr); i = nsqrtasm(daslope*daslope+16777216); x = globalx; y = globaly; globalx = dmulscale16(x,dx,y,dy); globaly = mulscale12(dmulscale16(-y,dx,x,dy),i); x = ((wal->x-globalposx)<<8); y = ((wal->y-globalposy)<<8); globalx1 = dmulscale16(-x,dx,-y,dy); globaly1 = mulscale12(dmulscale16(-y,dx,x,dy),i); x = globalx2; y = globaly2; globalx2 = dmulscale16(x,dx,y,dy); globaly2 = mulscale12(dmulscale16(-y,dx,x,dy),i); } if (globalorientation&0x4) { i = globalx; globalx = -globaly; globaly = -i; i = globalx1; globalx1 = globaly1; globaly1 = i; i = globalx2; globalx2 = -globaly2; globaly2 = -i; } if (globalorientation&0x10) { globalx1 = -globalx1, globalx2 = -globalx2, globalx = -globalx; } if (globalorientation&0x20) { globaly1 = -globaly1, globaly2 = -globaly2, globaly = -globaly; } daz = dmulscale9(wx,globalposy-wal->y,-wy,globalposx-wal->x) + ((daz-globalposz)<<8); globalx2 = mulscale20(globalx2,daz); globalx = mulscale28(globalx,daz); globaly2 = mulscale20(globaly2,-daz); globaly = mulscale28(globaly,-daz); i = 8-(picsiz[globalpicnum]&15); j = 8-(picsiz[globalpicnum]>>4); if (globalorientation&8) { i++; j++; } globalx1 <<= (i+12); globalx2 <<= i; globalx <<= i; globaly1 <<= (j+12); globaly2 <<= j; globaly <<= j; if (dastat == 0) { globalx1 += (((long)sec->ceilingxpanning)<<24); globaly1 += (((long)sec->ceilingypanning)<<24); } else { globalx1 += (((long)sec->floorxpanning)<<24); globaly1 += (((long)sec->floorypanning)<<24); } asm1 = -(globalzd>>(16-BITSOFPRECISION)); globvis = globalvisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globvis = mulscale13(globvis,daz); globvis = mulscale16(globvis,xdimscale); j = FP_OFF(palookup[globalpal]); setupslopevlin(((long)(picsiz[globalpicnum]&15))+(((long)(picsiz[globalpicnum]>>4))<<8),waloff[globalpicnum],-ylookup[1]); l = (globalzd>>16); shinc = mulscale16(globalz,xdimenscale); if (shinc > 0) shoffs = (4<<15); else shoffs = ((16380-ydimen)<<15); // JBF: was 2044 if (dastat == 0) y1 = umost[dax1]; else y1 = max(umost[dax1],dplc[dax1]); m1 = mulscale16(y1,globalzd) + (globalzx>>6); //Avoid visibility overflow by crossing horizon if (globalzd > 0) m1 += (globalzd>>16); else m1 -= (globalzd>>16); m2 = m1+l; mptr1 = (long *)&slopalookup[y1+(shoffs>>15)]; mptr2 = mptr1+1; for (x=dax1;x<=dax2;x++) { if (dastat == 0) { y1 = umost[x]; y2 = min(dmost[x],uplc[x])-1; } else { y1 = max(umost[x],dplc[x]); y2 = dmost[x]-1; } if (y1 <= y2) { nptr1 = (long *)&slopalookup[y1+(shoffs>>15)]; nptr2 = (long *)&slopalookup[y2+(shoffs>>15)]; while (nptr1 <= mptr1) { *mptr1-- = j + (getpalookup((long)mulscale24(krecipasm(m1),globvis),globalshade)<<8); m1 -= l; } while (nptr2 >= mptr2) { *mptr2++ = j + (getpalookup((long)mulscale24(krecipasm(m2),globvis),globalshade)<<8); m2 += l; } globalx3 = (globalx2>>10); globaly3 = (globaly2>>10); asm3 = mulscale16(y2,globalzd) + (globalzx>>6); slopevlin(ylookup[y2]+x+frameoffset,krecipasm(asm3>>3),(long)nptr2,y2-y1+1,globalx1,globaly1); if ((x&15) == 0) faketimerhandler(); } globalx2 += globalx; globaly2 += globaly; globalzx += globalz; shoffs += shinc; } } // // parascan (internal) // static void parascan(long dax1, long dax2, long sectnum, char dastat, long bunch) { sectortype *sec; long j, k, l, m, n, x, z, wallnum, nextsectnum, globalhorizbak; short *topptr, *botptr; sectnum = thesector[bunchfirst[bunch]]; sec = §or[sectnum]; globalhorizbak = globalhoriz; if (parallaxyscale != 65536) globalhoriz = mulscale16(globalhoriz-(ydimen>>1),parallaxyscale) + (ydimen>>1); globvis = globalpisibility; //globalorientation = 0L; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); if (dastat == 0) { globalpal = sec->ceilingpal; globalpicnum = sec->ceilingpicnum; globalshade = (long)sec->ceilingshade; globalxpanning = (long)sec->ceilingxpanning; globalypanning = (long)sec->ceilingypanning; topptr = umost; botptr = uplc; } else { globalpal = sec->floorpal; globalpicnum = sec->floorpicnum; globalshade = (long)sec->floorshade; globalxpanning = (long)sec->floorxpanning; globalypanning = (long)sec->floorypanning; topptr = dplc; botptr = dmost; } if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(short)sectnum); globalshiftval = (picsiz[globalpicnum]>>4); if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++; globalshiftval = 32-globalshiftval; globalzd = (((tilesizy[globalpicnum]>>1)+parallaxyoffs)<=0;z=p2[z]) { wallnum = thewall[z]; nextsectnum = wall[wallnum].nextsector; if (dastat == 0) j = sector[nextsectnum].ceilingstat; else j = sector[nextsectnum].floorstat; if ((nextsectnum < 0) || (wall[wallnum].cstat&32) || ((j&1) == 0)) { if (x == -1) x = xb1[z]; if (parallaxtype == 0) { n = mulscale16(xdimenrecip,viewingrange); for (j=xb1[z];j<=xb2[z];j++) lplc[j] = (((mulscale23(j-halfxdimen,n)+globalang)&2047)>>k); } else { for (j=xb1[z];j<=xb2[z];j++) lplc[j] = ((((long)radarang2[j]+globalang)&2047)>>k); } if (parallaxtype == 2) { n = mulscale16(xdimscale,viewingrange); for (j=xb1[z];j<=xb2[z];j++) swplc[j] = mulscale14(sintable[((long)radarang2[j]+512)&2047],n); } else clearbuf(&swplc[xb1[z]],xb2[z]-xb1[z]+1,mulscale16(xdimscale,viewingrange)); } else if (x >= 0) { l = globalpicnum; m = (picsiz[globalpicnum]&15); globalpicnum = l+pskyoff[lplc[x]>>m]; if (((lplc[x]^lplc[xb1[z]-1])>>m) == 0) wallscan(x,xb1[z]-1,topptr,botptr,swplc,lplc); else { j = x; while (x < xb1[z]) { n = l+pskyoff[lplc[x]>>m]; if (n != globalpicnum) { wallscan(j,x-1,topptr,botptr,swplc,lplc); j = x; globalpicnum = n; } x++; } if (j < x) wallscan(j,x-1,topptr,botptr,swplc,lplc); } globalpicnum = l; x = -1; } } if (x >= 0) { l = globalpicnum; m = (picsiz[globalpicnum]&15); globalpicnum = l+pskyoff[lplc[x]>>m]; if (((lplc[x]^lplc[xb2[bunchlast[bunch]]])>>m) == 0) wallscan(x,xb2[bunchlast[bunch]],topptr,botptr,swplc,lplc); else { j = x; while (x <= xb2[bunchlast[bunch]]) { n = l+pskyoff[lplc[x]>>m]; if (n != globalpicnum) { wallscan(j,x-1,topptr,botptr,swplc,lplc); j = x; globalpicnum = n; } x++; } if (j <= x) wallscan(j,x-1,topptr,botptr,swplc,lplc); } globalpicnum = l; } globalhoriz = globalhorizbak; } // // drawalls (internal) // static void drawalls(long bunch) { sectortype *sec, *nextsec; walltype *wal; long i, x, x1, x2, cz[5], fz[5]; long z, wallnum, sectnum, nextsectnum; long startsmostwallcnt, startsmostcnt, gotswall; char andwstat1, andwstat2; z = bunchfirst[bunch]; sectnum = thesector[z]; sec = §or[sectnum]; andwstat1 = 0xff; andwstat2 = 0xff; for (;z>=0;z=p2[z]) //uplc/dplc calculation { andwstat1 &= wallmost(uplc,z,sectnum,(char)0); andwstat2 &= wallmost(dplc,z,sectnum,(char)1); } if ((andwstat1&3) != 3) //draw ceilings { if ((sec->ceilingstat&3) == 2) grouscan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum,0); else if ((sec->ceilingstat&1) == 0) ceilscan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum); else parascan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum,0,bunch); } if ((andwstat2&12) != 12) //draw floors { if ((sec->floorstat&3) == 2) grouscan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum,1); else if ((sec->floorstat&1) == 0) florscan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum); else parascan(xb1[bunchfirst[bunch]],xb2[bunchlast[bunch]],sectnum,1,bunch); } //DRAW WALLS SECTION! for (z=bunchfirst[bunch];z>=0;z=p2[z]) { x1 = xb1[z]; x2 = xb2[z]; if (umost[x2] >= dmost[x2]) { for (x=x1;x= x2) { smostwall[smostwallcnt] = z; smostwalltype[smostwallcnt] = 0; smostwallcnt++; continue; } } wallnum = thewall[z]; wal = &wall[wallnum]; nextsectnum = wal->nextsector; nextsec = §or[nextsectnum]; gotswall = 0; startsmostwallcnt = smostwallcnt; startsmostcnt = smostcnt; if ((searchit == 2) && (searchx >= x1) && (searchx <= x2)) { if (searchy <= uplc[searchx]) //ceiling { searchsector = sectnum; searchwall = wallnum; searchstat = 1; searchit = 1; } else if (searchy >= dplc[searchx]) //floor { searchsector = sectnum; searchwall = wallnum; searchstat = 2; searchit = 1; } } if (nextsectnum >= 0) { getzsofslope((short)sectnum,wal->x,wal->y,&cz[0],&fz[0]); getzsofslope((short)sectnum,wall[wal->point2].x,wall[wal->point2].y,&cz[1],&fz[1]); getzsofslope((short)nextsectnum,wal->x,wal->y,&cz[2],&fz[2]); getzsofslope((short)nextsectnum,wall[wal->point2].x,wall[wal->point2].y,&cz[3],&fz[3]); getzsofslope((short)nextsectnum,globalposx,globalposy,&cz[4],&fz[4]); if ((wal->cstat&48) == 16) maskwall[maskwallcnt++] = z; if (((sec->ceilingstat&1) == 0) || ((nextsec->ceilingstat&1) == 0)) { if ((cz[2] <= cz[0]) && (cz[3] <= cz[1])) { if (globparaceilclip) for (x=x1;x<=x2;x++) if (uplc[x] > umost[x]) if (umost[x] <= dmost[x]) { umost[x] = uplc[x]; if (umost[x] > dmost[x]) numhits--; } } else { wallmost(dwall,z,nextsectnum,(char)0); if ((cz[2] > fz[0]) || (cz[3] > fz[1])) for (i=x1;i<=x2;i++) if (dwall[i] > dplc[i]) dwall[i] = dplc[i]; if ((searchit == 2) && (searchx >= x1) && (searchx <= x2)) if (searchy <= dwall[searchx]) //wall { searchsector = sectnum; searchwall = wallnum; searchstat = 0; searchit = 1; } globalorientation = (long)wal->cstat; globalpicnum = wal->picnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; globalxpanning = (long)wal->xpanning; globalypanning = (long)wal->ypanning; globalshiftval = (picsiz[globalpicnum]>>4); if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++; globalshiftval = 32-globalshiftval; if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(short)wallnum+16384); globalshade = (long)wal->shade; globvis = globalvisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalpal = (long)wal->pal; if (palookup[globalpal] == NULL) globalpal = 0; // JBF: fixes crash globalyscale = (wal->yrepeat<<(globalshiftval-19)); if ((globalorientation&4) == 0) globalzd = (((globalposz-nextsec->ceilingz)*globalyscale)<<8); else globalzd = (((globalposz-sec->ceilingz)*globalyscale)<<8); globalzd += (globalypanning<<24); if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd; if (gotswall == 0) { gotswall = 1; prepwall(z,wal); } wallscan(x1,x2,uplc,dwall,swall,lwall); if ((cz[2] >= cz[0]) && (cz[3] >= cz[1])) { for (x=x1;x<=x2;x++) if (dwall[x] > umost[x]) if (umost[x] <= dmost[x]) { umost[x] = dwall[x]; if (umost[x] > dmost[x]) numhits--; } } else { for (x=x1;x<=x2;x++) if (umost[x] <= dmost[x]) { i = max(uplc[x],dwall[x]); if (i > umost[x]) { umost[x] = i; if (umost[x] > dmost[x]) numhits--; } } } } if ((cz[2] < cz[0]) || (cz[3] < cz[1]) || (globalposz < cz[4])) { i = x2-x1+1; if (smostcnt+i < MAXYSAVES) { smoststart[smostwallcnt] = smostcnt; smostwall[smostwallcnt] = z; smostwalltype[smostwallcnt] = 1; //1 for umost smostwallcnt++; copybufbyte(&umost[x1],&smost[smostcnt],i*sizeof(smost[0])); smostcnt += i; } } } if (((sec->floorstat&1) == 0) || ((nextsec->floorstat&1) == 0)) { if ((fz[2] >= fz[0]) && (fz[3] >= fz[1])) { if (globparaflorclip) for (x=x1;x<=x2;x++) if (dplc[x] < dmost[x]) if (umost[x] <= dmost[x]) { dmost[x] = dplc[x]; if (umost[x] > dmost[x]) numhits--; } } else { wallmost(uwall,z,nextsectnum,(char)1); if ((fz[2] < cz[0]) || (fz[3] < cz[1])) for (i=x1;i<=x2;i++) if (uwall[i] < uplc[i]) uwall[i] = uplc[i]; if ((searchit == 2) && (searchx >= x1) && (searchx <= x2)) if (searchy >= uwall[searchx]) //wall { searchsector = sectnum; searchwall = wallnum; if ((wal->cstat&2) > 0) searchwall = wal->nextwall; searchstat = 0; searchit = 1; } if ((wal->cstat&2) > 0) { wallnum = wal->nextwall; wal = &wall[wallnum]; globalorientation = (long)wal->cstat; globalpicnum = wal->picnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; globalxpanning = (long)wal->xpanning; globalypanning = (long)wal->ypanning; if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(short)wallnum+16384); globalshade = (long)wal->shade; globalpal = (long)wal->pal; wallnum = thewall[z]; wal = &wall[wallnum]; } else { globalorientation = (long)wal->cstat; globalpicnum = wal->picnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; globalxpanning = (long)wal->xpanning; globalypanning = (long)wal->ypanning; if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(short)wallnum+16384); globalshade = (long)wal->shade; globalpal = (long)wal->pal; } if (palookup[globalpal] == NULL) globalpal = 0; // JBF: fixes crash globvis = globalvisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalshiftval = (picsiz[globalpicnum]>>4); if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++; globalshiftval = 32-globalshiftval; globalyscale = (wal->yrepeat<<(globalshiftval-19)); if ((globalorientation&4) == 0) globalzd = (((globalposz-nextsec->floorz)*globalyscale)<<8); else globalzd = (((globalposz-sec->ceilingz)*globalyscale)<<8); globalzd += (globalypanning<<24); if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd; if (gotswall == 0) { gotswall = 1; prepwall(z,wal); } wallscan(x1,x2,uwall,dplc,swall,lwall); if ((fz[2] <= fz[0]) && (fz[3] <= fz[1])) { for (x=x1;x<=x2;x++) if (uwall[x] < dmost[x]) if (umost[x] <= dmost[x]) { dmost[x] = uwall[x]; if (umost[x] > dmost[x]) numhits--; } } else { for (x=x1;x<=x2;x++) if (umost[x] <= dmost[x]) { i = min(dplc[x],uwall[x]); if (i < dmost[x]) { dmost[x] = i; if (umost[x] > dmost[x]) numhits--; } } } } if ((fz[2] > fz[0]) || (fz[3] > fz[1]) || (globalposz > fz[4])) { i = x2-x1+1; if (smostcnt+i < MAXYSAVES) { smoststart[smostwallcnt] = smostcnt; smostwall[smostwallcnt] = z; smostwalltype[smostwallcnt] = 2; //2 for dmost smostwallcnt++; copybufbyte(&dmost[x1],&smost[smostcnt],i*sizeof(smost[0])); smostcnt += i; } } } if (numhits < 0) return; if ((!(wal->cstat&32)) && ((gotsector[nextsectnum>>3]&pow2char[nextsectnum&7]) == 0)) { if (umost[x2] < dmost[x2]) scansector(nextsectnum); else { for (x=x1;xcstat&32)) //White/1-way wall { globalorientation = (long)wal->cstat; if (nextsectnum < 0) globalpicnum = wal->picnum; else globalpicnum = wal->overpicnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; globalxpanning = (long)wal->xpanning; globalypanning = (long)wal->ypanning; if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(short)wallnum+16384); globalshade = (long)wal->shade; globvis = globalvisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalpal = (long)wal->pal; if (palookup[globalpal] == NULL) globalpal = 0; // JBF: fixes crash globalshiftval = (picsiz[globalpicnum]>>4); if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++; globalshiftval = 32-globalshiftval; globalyscale = (wal->yrepeat<<(globalshiftval-19)); if (nextsectnum >= 0) { if ((globalorientation&4) == 0) globalzd = globalposz-nextsec->ceilingz; else globalzd = globalposz-sec->ceilingz; } else { if ((globalorientation&4) == 0) globalzd = globalposz-sec->ceilingz; else globalzd = globalposz-sec->floorz; } globalzd = ((globalzd*globalyscale)<<8) + (globalypanning<<24); if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd; if (gotswall == 0) { gotswall = 1; prepwall(z,wal); } wallscan(x1,x2,uplc,dplc,swall,lwall); for (x=x1;x<=x2;x++) if (umost[x] <= dmost[x]) { umost[x] = 1; dmost[x] = 0; numhits--; } smostwall[smostwallcnt] = z; smostwalltype[smostwallcnt] = 0; smostwallcnt++; if ((searchit == 2) && (searchx >= x1) && (searchx <= x2)) { searchit = 1; searchsector = sectnum; searchwall = wallnum; if (nextsectnum < 0) searchstat = 0; else searchstat = 4; } } } } // // drawvox // #ifdef SUPERBUILD static void drawvox(long dasprx, long daspry, long dasprz, long dasprang, long daxscale, long dayscale, char daindex, signed char dashade, char dapal, long *daumost, long *dadmost) { long i, j, k, x, y, syoff, ggxstart, ggystart, nxoff; long cosang, sinang, sprcosang, sprsinang, backx, backy, gxinc, gyinc; long daxsiz, daysiz, dazsiz, daxpivot, daypivot, dazpivot; long daxscalerecip, dayscalerecip, cnt, gxstart, gystart, odayscale; long l1, l2, slabxoffs, xyvoxoffs, *longptr; long lx, rx, nx, ny, x1=0, y1=0, z1, x2=0, y2=0, z2, yplc, yinc=0; long yoff, xs=0, ys=0, xe, ye, xi=0, yi=0, cbackx, cbacky, dagxinc, dagyinc; short *shortptr; char *voxptr, *voxend, *davoxptr, oand, oand16, oand32; cosang = sintable[(globalang+512)&2047]; sinang = sintable[globalang&2047]; sprcosang = sintable[(dasprang+512)&2047]; sprsinang = sintable[dasprang&2047]; i = klabs(dmulscale6(dasprx-globalposx,cosang,daspry-globalposy,sinang)); j = (long)(getpalookup((long)mulscale21(globvis,i),(long)dashade)<<8); setupdrawslab(ylookup[1],FP_OFF(palookup[dapal])+j); j = 1310720; j *= min(daxscale,dayscale); j >>= 6; //New hacks (for sized-down voxels) for (k=0;k= MAXVOXMIPS) i = MAXVOXMIPS-1; if (novoxmips) i = 0; davoxptr = (char *)voxoff[daindex][i]; if (!davoxptr && i > 0) { davoxptr = (char *)voxoff[daindex][0]; i = 0; } if (!davoxptr) return; if (voxscale[daindex] == 65536) { daxscale <<= (i+8); dayscale <<= (i+8); } else { daxscale = mulscale8(daxscale<>8); backy = ((dmulscale10(y,sprcosang,x,-sprsinang)+daypivot)>>8); cbackx = min(max(backx,0),daxsiz-1); cbacky = min(max(backy,0),daysiz-1); sprcosang = mulscale14(daxscale,sprcosang); sprsinang = mulscale14(daxscale,sprsinang); x = (dasprx-globalposx) - dmulscale18(daxpivot,sprcosang,daypivot,-sprsinang); y = (daspry-globalposy) - dmulscale18(daypivot,sprcosang,daxpivot,sprsinang); cosang = mulscale16(cosang,dayscalerecip); sinang = mulscale16(sinang,dayscalerecip); gxstart = y*cosang - x*sinang; gystart = x*cosang + y*sinang; gxinc = dmulscale10(sprsinang,cosang,sprcosang,-sinang); gyinc = dmulscale10(sprcosang,cosang,sprsinang,sinang); x = 0; y = 0; j = max(daxsiz,daysiz); for (i=0;i<=j;i++) { ggxinc[i] = x; x += gxinc; ggyinc[i] = y; y += gyinc; } if ((klabs(globalposz-dasprz)>>10) >= klabs(odayscale)) return; syoff = divscale21(globalposz-dasprz,odayscale) + (dazpivot<<7); yoff = ((klabs(gxinc)+klabs(gyinc))>>1); longptr = (long *)davoxptr; xyvoxoffs = ((daxsiz+1)<<2); begindrawing(); //{{{ for (cnt=0;cnt<8;cnt++) { switch (cnt) { case 0: xs = 0; ys = 0; xi = 1; yi = 1; break; case 1: xs = daxsiz-1; ys = 0; xi = -1; yi = 1; break; case 2: xs = 0; ys = daysiz-1; xi = 1; yi = -1; break; case 3: xs = daxsiz-1; ys = daysiz-1; xi = -1; yi = -1; break; case 4: xs = 0; ys = cbacky; xi = 1; yi = 2; break; case 5: xs = daxsiz-1; ys = cbacky; xi = -1; yi = 2; break; case 6: xs = cbackx; ys = 0; xi = 2; yi = 1; break; case 7: xs = cbackx; ys = daysiz-1; xi = 2; yi = -1; break; } xe = cbackx; ye = cbacky; if (cnt < 4) { if ((xi < 0) && (xe >= xs)) continue; if ((xi > 0) && (xe <= xs)) continue; if ((yi < 0) && (ye >= ys)) continue; if ((yi > 0) && (ye <= ys)) continue; } else { if ((xi < 0) && (xe > xs)) continue; if ((xi > 0) && (xe < xs)) continue; if ((yi < 0) && (ye > ys)) continue; if ((yi > 0) && (ye < ys)) continue; xe += xi; ye += yi; } i = ksgn(ys-backy)+ksgn(xs-backx)*3+4; switch (i) { case 6: case 7: x1 = 0; y1 = 0; break; case 8: case 5: x1 = gxinc; y1 = gyinc; break; case 0: case 3: x1 = gyinc; y1 = -gxinc; break; case 2: case 1: x1 = gxinc+gyinc; y1 = gyinc-gxinc; break; } switch (i) { case 2: case 5: x2 = 0; y2 = 0; break; case 0: case 1: x2 = gxinc; y2 = gyinc; break; case 8: case 7: x2 = gyinc; y2 = -gxinc; break; case 6: case 3: x2 = gxinc+gyinc; y2 = gyinc-gxinc; break; } oand = pow2char[(xs 0) { dagxinc = gxinc; dagyinc = mulscale16(gyinc,viewingrangerecip); } else { dagxinc = -gxinc; dagyinc = -mulscale16(gyinc,viewingrangerecip); } //Fix for non 90 degree viewing ranges nxoff = mulscale16(x2-x1,viewingrangerecip); x1 = mulscale16(x1,viewingrangerecip); ggxstart = gxstart+ggyinc[ys]; ggystart = gystart-ggxinc[ys]; for (x=xs;x!=xe;x+=xi) { slabxoffs = (long)&davoxptr[B_LITTLE32(longptr[x])]; shortptr = (short *)&davoxptr[((x*(daysiz+1))<<1)+xyvoxoffs]; nx = mulscale16(ggxstart+ggxinc[x],viewingrangerecip)+x1; ny = ggystart+ggyinc[x]; for (y=ys;y!=ye;y+=yi,nx+=dagyinc,ny-=dagxinc) { if ((ny <= nytooclose) || (ny >= nytoofar)) continue; voxptr = (char *)(B_LITTLE16(shortptr[y])+slabxoffs); voxend = (char *)(B_LITTLE16(shortptr[y+1])+slabxoffs); if (voxptr == voxend) continue; lx = mulscale32(nx>>3,distrecip[(ny+y1)>>14])+halfxdimen; if (lx < 0) lx = 0; rx = mulscale32((nx+nxoff)>>3,distrecip[(ny+y2)>>14])+halfxdimen; if (rx > xdimen) rx = xdimen; if (rx <= lx) continue; rx -= lx; l1 = distrecip[(ny-yoff)>>14]; l2 = distrecip[(ny+yoff)>>14]; for (;voxptr= 1024) yinc = divscale16(voxptr[1],z2-z1); else if (z2 > z1) yinc = (lowrecip[z2-z1]*voxptr[1]>>8); if (z1 < daumost[lx]) { yplc = yinc*(daumost[lx]-z1); z1 = daumost[lx]; } else yplc = 0; } if (z2 > dadmost[lx]) z2 = dadmost[lx]; z2 -= z1; if (z2 <= 0) continue; drawslab(rx,yplc,z2,yinc,(long)&voxptr[3],ylookup[z1]+lx+frameoffset); } } } } enddrawing(); //}}} } #endif // // drawsprite (internal) // static void drawsprite(long snum) { spritetype *tspr; sectortype *sec; long startum, startdm, sectnum, xb, yp, cstat; long siz, xsiz, ysiz, xoff, yoff, xspan, yspan; long x1, y1, x2, y2, lx, rx, dalx2, darx2, i, j, k, x, linum, linuminc; long yinc, z, z1, z2, xp1, yp1, xp2, yp2; long xv, yv, top, topinc, bot, botinc, hplc, hinc; long cosang, sinang, dax, day, lpoint, lmax, rpoint, rmax, dax1, dax2, y; long npoints, npoints2, zz, t, zsgn, zzsgn, *longptr; long tilenum, vtilenum = 0, spritenum; char swapped, daclip; //============================================================================= //POLYMOST BEGINS #ifdef POLYMOST if (rendmode == 3) { polymost_drawsprite(snum); # ifdef USE_OPENGL bglDisable(GL_POLYGON_OFFSET_FILL); # endif return; } if (rendmode == 4) { polymer_drawsprite(snum); return; } #endif //============================================================================= //POLYMOST ENDS tspr = tspriteptr[snum]; xb = spritesx[snum]; yp = spritesy[snum]; tilenum = tspr->picnum; spritenum = tspr->owner; cstat = tspr->cstat; #ifdef SUPERBUILD if ((cstat&48)==48) vtilenum = tilenum; // if the game wants voxels, it gets voxels else if ((cstat&48)!=48 && (usevoxels) && (tiletovox[tilenum] != -1) #if defined(POLYMOST) && defined(USE_OPENGL) && (!(spriteext[tspr->owner].flags&SPREXT_NOTMD)) #endif ) { vtilenum = tiletovox[tilenum]; cstat |= 48; } #endif if ((cstat&48) != 48) { if (picanm[tilenum]&192) tilenum += animateoffs(tilenum,spritenum+32768); if ((tilesizx[tilenum] <= 0) || (tilesizy[tilenum] <= 0) || (spritenum < 0)) return; } if ((tspr->xrepeat <= 0) || (tspr->yrepeat <= 0)) return; sectnum = tspr->sectnum; sec = §or[sectnum]; globalpal = tspr->pal; if (palookup[globalpal] == NULL) globalpal = 0; // JBF: fixes null-pointer crash globalshade = tspr->shade; if (cstat&2) { if (cstat&512) settransreverse(); else settransnormal(); } xoff = (long)((signed char)((picanm[tilenum]>>8)&255))+((long)tspr->xoffset); yoff = (long)((signed char)((picanm[tilenum]>>16)&255))+((long)tspr->yoffset); if ((cstat&48) == 0) { if (yp <= (4<<8)) return; siz = divscale19(xdimenscale,yp); xv = mulscale16(((long)tspr->xrepeat)<<16,xyaspect); xspan = tilesizx[tilenum]; yspan = tilesizy[tilenum]; xsiz = mulscale30(siz,xv*xspan); ysiz = mulscale14(siz,tspr->yrepeat*yspan); if (((tilesizx[tilenum]>>11) >= xsiz) || (yspan >= (ysiz>>1))) return; //Watch out for divscale overflow x1 = xb-(xsiz>>1); if (xspan&1) x1 += mulscale31(siz,xv); //Odd xspans i = mulscale30(siz,xv*xoff); if ((cstat&4) == 0) x1 -= i; else x1 += i; y1 = mulscale16(tspr->z-globalposz,siz); y1 -= mulscale14(siz,tspr->yrepeat*yoff); y1 += (globalhoriz<<8)-ysiz; if (cstat&128) { y1 += (ysiz>>1); if (yspan&1) y1 += mulscale15(siz,tspr->yrepeat); //Odd yspans } x2 = x1+xsiz-1; y2 = y1+ysiz-1; if ((y1|255) >= (y2|255)) return; lx = (x1>>8)+1; if (lx < 0) lx = 0; rx = (x2>>8); if (rx >= xdimen) rx = xdimen-1; if (lx > rx) return; yinc = divscale32(yspan,ysiz); if ((sec->ceilingstat&3) == 0) startum = globalhoriz+mulscale24(siz,sec->ceilingz-globalposz)-1; else startum = 0; if ((sec->floorstat&3) == 0) startdm = globalhoriz+mulscale24(siz,sec->floorz-globalposz)+1; else startdm = 0x7fffffff; if ((y1>>8) > startum) startum = (y1>>8); if ((y2>>8) < startdm) startdm = (y2>>8); if (startum < -32768) startum = -32768; if (startdm > 32767) startdm = 32767; if (startum >= startdm) return; if ((cstat&4) == 0) { linuminc = divscale24(xspan,xsiz); linum = mulscale8((lx<<8)-x1,linuminc); } else { linuminc = -divscale24(xspan,xsiz); linum = mulscale8((lx<<8)-x2,linuminc); } if ((cstat&8) > 0) { yinc = -yinc; i = y1; y1 = y2; y2 = i; } for (x=lx;x<=rx;x++) { uwall[x] = max(startumost[x+windowx1]-windowy1,(short)startum); dwall[x] = min(startdmost[x+windowx1]-windowy1,(short)startdm); } daclip = 0; for (i=smostwallcnt-1;i>=0;i--) { if (smostwalltype[i]&daclip) continue; j = smostwall[i]; if ((xb1[j] > rx) || (xb2[j] < lx)) continue; if ((yp <= yb1[j]) && (yp <= yb2[j])) continue; if (spritewallfront(tspr,(long)thewall[j]) && ((yp <= yb1[j]) || (yp <= yb2[j]))) continue; dalx2 = max(xb1[j],lx); darx2 = min(xb2[j],rx); switch (smostwalltype[i]) { case 0: if (dalx2 <= darx2) { if ((dalx2 == lx) && (darx2 == rx)) return; //clearbufbyte(&dwall[dalx2],(darx2-dalx2+1)*sizeof(dwall[0]),0L); for (k=dalx2; k<=darx2; k++) dwall[k] = 0; } break; case 1: k = smoststart[i] - xb1[j]; for (x=dalx2;x<=darx2;x++) if (smost[k+x] > uwall[x]) uwall[x] = smost[k+x]; if ((dalx2 == lx) && (darx2 == rx)) daclip |= 1; break; case 2: k = smoststart[i] - xb1[j]; for (x=dalx2;x<=darx2;x++) if (smost[k+x] < dwall[x]) dwall[x] = smost[k+x]; if ((dalx2 == lx) && (darx2 == rx)) daclip |= 2; break; } } if (uwall[rx] >= dwall[rx]) { for (x=lx;x= 1) && (searchx >= lx) && (searchx <= rx)) if ((searchy >= uwall[searchx]) && (searchy < dwall[searchx])) { searchsector = sectnum; searchwall = spritenum; searchstat = 3; searchit = 1; } z2 = tspr->z - ((yoff*tspr->yrepeat)<<2); if (cstat&128) { z2 += ((yspan*tspr->yrepeat)<<1); if (yspan&1) z2 += (tspr->yrepeat<<1); //Odd yspans } z1 = z2 - ((yspan*tspr->yrepeat)<<2); globalorientation = 0; globalpicnum = tilenum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; globalxpanning = 0L; globalypanning = 0L; globvis = globalvisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalshiftval = (picsiz[globalpicnum]>>4); if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++; globalshiftval = 32-globalshiftval; globalyscale = divscale(512,tspr->yrepeat,globalshiftval-19); globalzd = (((globalposz-z1)*globalyscale)<<8); if ((cstat&8) > 0) { globalyscale = -globalyscale; globalzd = (((globalposz-z2)*globalyscale)<<8); } qinterpolatedown16((long)&lwall[lx],rx-lx+1,linum,linuminc); clearbuf(&swall[lx],rx-lx+1,mulscale19(yp,xdimscale)); if ((cstat&2) == 0) maskwallscan(lx,rx,uwall,dwall,swall,lwall); else transmaskwallscan(lx,rx); } else if ((cstat&48) == 16) { if ((cstat&4) > 0) xoff = -xoff; if ((cstat&8) > 0) yoff = -yoff; xspan = tilesizx[tilenum]; yspan = tilesizy[tilenum]; xv = tspr->xrepeat*sintable[(tspr->ang+2560+1536)&2047]; yv = tspr->xrepeat*sintable[(tspr->ang+2048+1536)&2047]; i = (xspan>>1)+xoff; x1 = tspr->x-globalposx-mulscale16(xv,i); x2 = x1+mulscale16(xv,xspan); y1 = tspr->y-globalposy-mulscale16(yv,i); y2 = y1+mulscale16(yv,xspan); yp1 = dmulscale6(x1,cosviewingrangeglobalang,y1,sinviewingrangeglobalang); yp2 = dmulscale6(x2,cosviewingrangeglobalang,y2,sinviewingrangeglobalang); if ((yp1 <= 0) && (yp2 <= 0)) return; xp1 = dmulscale6(y1,cosglobalang,-x1,singlobalang); xp2 = dmulscale6(y2,cosglobalang,-x2,singlobalang); x1 += globalposx; y1 += globalposy; x2 += globalposx; y2 += globalposy; swapped = 0; if (dmulscale32(xp1,yp2,-xp2,yp1) >= 0) //If wall's NOT facing you { if ((cstat&64) != 0) return; i = xp1, xp1 = xp2, xp2 = i; i = yp1, yp1 = yp2, yp2 = i; i = x1, x1 = x2, x2 = i; i = y1, y1 = y2, y2 = i; swapped = 1; } if (xp1 >= -yp1) { if (xp1 > yp1) return; if (yp1 == 0) return; xb1[MAXWALLSB-1] = halfxdimen + scale(xp1,halfxdimen,yp1); if (xp1 >= 0) xb1[MAXWALLSB-1]++; //Fix for SIGNED divide if (xb1[MAXWALLSB-1] >= xdimen) xb1[MAXWALLSB-1] = xdimen-1; yb1[MAXWALLSB-1] = yp1; } else { if (xp2 < -yp2) return; xb1[MAXWALLSB-1] = 0; i = yp1-yp2+xp1-xp2; if (i == 0) return; yb1[MAXWALLSB-1] = yp1 + scale(yp2-yp1,xp1+yp1,i); } if (xp2 <= yp2) { if (xp2 < -yp2) return; if (yp2 == 0) return; xb2[MAXWALLSB-1] = halfxdimen + scale(xp2,halfxdimen,yp2) - 1; if (xp2 >= 0) xb2[MAXWALLSB-1]++; //Fix for SIGNED divide if (xb2[MAXWALLSB-1] >= xdimen) xb2[MAXWALLSB-1] = xdimen-1; yb2[MAXWALLSB-1] = yp2; } else { if (xp1 > yp1) return; xb2[MAXWALLSB-1] = xdimen-1; i = xp2-xp1+yp1-yp2; if (i == 0) return; yb2[MAXWALLSB-1] = yp1 + scale(yp2-yp1,yp1-xp1,i); } if ((yb1[MAXWALLSB-1] < 256) || (yb2[MAXWALLSB-1] < 256) || (xb1[MAXWALLSB-1] > xb2[MAXWALLSB-1])) return; topinc = -mulscale10(yp1,xspan); top = (((mulscale10(xp1,xdimen) - mulscale9(xb1[MAXWALLSB-1]-halfxdimen,yp1))*xspan)>>3); botinc = ((yp2-yp1)>>8); bot = mulscale11(xp1-xp2,xdimen) + mulscale2(xb1[MAXWALLSB-1]-halfxdimen,botinc); j = xb2[MAXWALLSB-1]+3; z = mulscale20(top,krecipasm(bot)); lwall[xb1[MAXWALLSB-1]] = (z>>8); for (x=xb1[MAXWALLSB-1]+4;x<=j;x+=4) { top += topinc; bot += botinc; zz = z; z = mulscale20(top,krecipasm(bot)); lwall[x] = (z>>8); i = ((z+zz)>>1); lwall[x-2] = (i>>8); lwall[x-3] = ((i+zz)>>9); lwall[x-1] = ((i+z)>>9); } if (lwall[xb1[MAXWALLSB-1]] < 0) lwall[xb1[MAXWALLSB-1]] = 0; if (lwall[xb2[MAXWALLSB-1]] >= xspan) lwall[xb2[MAXWALLSB-1]] = xspan-1; if ((swapped^((cstat&4)>0)) > 0) { j = xspan-1; for (x=xb1[MAXWALLSB-1];x<=xb2[MAXWALLSB-1];x++) lwall[x] = j-lwall[x]; } rx1[MAXWALLSB-1] = xp1; ry1[MAXWALLSB-1] = yp1; rx2[MAXWALLSB-1] = xp2; ry2[MAXWALLSB-1] = yp2; hplc = divscale19(xdimenscale,yb1[MAXWALLSB-1]); hinc = divscale19(xdimenscale,yb2[MAXWALLSB-1]); hinc = (hinc-hplc)/(xb2[MAXWALLSB-1]-xb1[MAXWALLSB-1]+1); z2 = tspr->z - ((yoff*tspr->yrepeat)<<2); if (cstat&128) { z2 += ((yspan*tspr->yrepeat)<<1); if (yspan&1) z2 += (tspr->yrepeat<<1); //Odd yspans } z1 = z2 - ((yspan*tspr->yrepeat)<<2); globalorientation = 0; globalpicnum = tilenum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; globalxpanning = 0L; globalypanning = 0L; globvis = globalvisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalshiftval = (picsiz[globalpicnum]>>4); if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++; globalshiftval = 32-globalshiftval; globalyscale = divscale(512,tspr->yrepeat,globalshiftval-19); globalzd = (((globalposz-z1)*globalyscale)<<8); if ((cstat&8) > 0) { globalyscale = -globalyscale; globalzd = (((globalposz-z2)*globalyscale)<<8); } if (((sec->ceilingstat&1) == 0) && (z1 < sec->ceilingz)) z1 = sec->ceilingz; if (((sec->floorstat&1) == 0) && (z2 > sec->floorz)) z2 = sec->floorz; owallmost(uwall,(long)(MAXWALLSB-1),z1-globalposz); owallmost(dwall,(long)(MAXWALLSB-1),z2-globalposz); for (i=xb1[MAXWALLSB-1];i<=xb2[MAXWALLSB-1];i++) { swall[i] = (krecipasm(hplc)<<2); hplc += hinc; } for (i=smostwallcnt-1;i>=0;i--) { j = smostwall[i]; if ((xb1[j] > xb2[MAXWALLSB-1]) || (xb2[j] < xb1[MAXWALLSB-1])) continue; dalx2 = xb1[j]; darx2 = xb2[j]; if (max(yb1[MAXWALLSB-1],yb2[MAXWALLSB-1]) > min(yb1[j],yb2[j])) { if (min(yb1[MAXWALLSB-1],yb2[MAXWALLSB-1]) > max(yb1[j],yb2[j])) { x = 0x80000000; } else { x = thewall[j]; xp1 = wall[x].x; yp1 = wall[x].y; x = wall[x].point2; xp2 = wall[x].x; yp2 = wall[x].y; z1 = (xp2-xp1)*(y1-yp1) - (yp2-yp1)*(x1-xp1); z2 = (xp2-xp1)*(y2-yp1) - (yp2-yp1)*(x2-xp1); if ((z1^z2) >= 0) x = (z1+z2); else { z1 = (x2-x1)*(yp1-y1) - (y2-y1)*(xp1-x1); z2 = (x2-x1)*(yp2-y1) - (y2-y1)*(xp2-x1); if ((z1^z2) >= 0) x = -(z1+z2); else { if ((xp2-xp1)*(tspr->y-yp1) == (tspr->x-xp1)*(yp2-yp1)) { if (wall[thewall[j]].nextsector == tspr->sectnum) x = 0x80000000; else x = 0x7fffffff; } else { //INTERSECTION! x = (xp1-globalposx) + scale(xp2-xp1,z1,z1-z2); y = (yp1-globalposy) + scale(yp2-yp1,z1,z1-z2); yp1 = dmulscale14(x,cosglobalang,y,singlobalang); if (yp1 > 0) { xp1 = dmulscale14(y,cosglobalang,-x,singlobalang); x = halfxdimen + scale(xp1,halfxdimen,yp1); if (xp1 >= 0) x++; //Fix for SIGNED divide if (z1 < 0) { if (dalx2 < x) dalx2 = x; } else { if (darx2 > x) darx2 = x; } x = 0x80000001; } else x = 0x7fffffff; } } } } if (x < 0) { if (dalx2 < xb1[MAXWALLSB-1]) dalx2 = xb1[MAXWALLSB-1]; if (darx2 > xb2[MAXWALLSB-1]) darx2 = xb2[MAXWALLSB-1]; switch (smostwalltype[i]) { case 0: if (dalx2 <= darx2) { if ((dalx2 == xb1[MAXWALLSB-1]) && (darx2 == xb2[MAXWALLSB-1])) return; //clearbufbyte(&dwall[dalx2],(darx2-dalx2+1)*sizeof(dwall[0]),0L); for (k=dalx2; k<=darx2; k++) dwall[k] = 0; } break; case 1: k = smoststart[i] - xb1[j]; for (x=dalx2;x<=darx2;x++) if (smost[k+x] > uwall[x]) uwall[x] = smost[k+x]; break; case 2: k = smoststart[i] - xb1[j]; for (x=dalx2;x<=darx2;x++) if (smost[k+x] < dwall[x]) dwall[x] = smost[k+x]; break; } } } } //sprite if ((searchit >= 1) && (searchx >= xb1[MAXWALLSB-1]) && (searchx <= xb2[MAXWALLSB-1])) if ((searchy >= uwall[searchx]) && (searchy <= dwall[searchx])) { searchsector = sectnum; searchwall = spritenum; searchstat = 3; searchit = 1; } if ((cstat&2) == 0) { maskwallscan(xb1[MAXWALLSB-1],xb2[MAXWALLSB-1],uwall,dwall,swall,lwall); } else { transmaskwallscan(xb1[MAXWALLSB-1],xb2[MAXWALLSB-1]); } } else if ((cstat&48) == 32) { if ((cstat&64) != 0) if ((globalposz > tspr->z) == ((cstat&8)==0)) return; if ((cstat&4) > 0) xoff = -xoff; if ((cstat&8) > 0) yoff = -yoff; xspan = tilesizx[tilenum]; yspan = tilesizy[tilenum]; //Rotate center point dax = tspr->x-globalposx; day = tspr->y-globalposy; rzi[0] = dmulscale10(cosglobalang,dax,singlobalang,day); rxi[0] = dmulscale10(cosglobalang,day,-singlobalang,dax); //Get top-left corner i = ((tspr->ang+2048-globalang)&2047); cosang = sintable[(i+512)&2047]; sinang = sintable[i]; dax = ((xspan>>1)+xoff)*tspr->xrepeat; day = ((yspan>>1)+yoff)*tspr->yrepeat; rzi[0] += dmulscale12(sinang,dax,cosang,day); rxi[0] += dmulscale12(sinang,day,-cosang,dax); //Get other 3 corners dax = xspan*tspr->xrepeat; day = yspan*tspr->yrepeat; rzi[1] = rzi[0]-mulscale12(sinang,dax); rxi[1] = rxi[0]+mulscale12(cosang,dax); dax = -mulscale12(cosang,day); day = -mulscale12(sinang,day); rzi[2] = rzi[1]+dax; rxi[2] = rxi[1]+day; rzi[3] = rzi[0]+dax; rxi[3] = rxi[0]+day; //Put all points on same z ryi[0] = scale((tspr->z-globalposz),yxaspect,320<<8); if (ryi[0] == 0) return; ryi[1] = ryi[2] = ryi[3] = ryi[0]; if ((cstat&4) == 0) { z = 0; z1 = 1; z2 = 3; } else { z = 1; z1 = 0; z2 = 2; } dax = rzi[z1]-rzi[z]; day = rxi[z1]-rxi[z]; bot = dmulscale8(dax,dax,day,day); if (((klabs(dax)>>13) >= bot) || ((klabs(day)>>13) >= bot)) return; globalx1 = divscale18(dax,bot); globalx2 = divscale18(day,bot); dax = rzi[z2]-rzi[z]; day = rxi[z2]-rxi[z]; bot = dmulscale8(dax,dax,day,day); if (((klabs(dax)>>13) >= bot) || ((klabs(day)>>13) >= bot)) return; globaly1 = divscale18(dax,bot); globaly2 = divscale18(day,bot); //Calculate globals for hline texture mapping function globalxpanning = (rxi[z]<<12); globalypanning = (rzi[z]<<12); globalzd = (ryi[z]<<12); rzi[0] = mulscale16(rzi[0],viewingrange); rzi[1] = mulscale16(rzi[1],viewingrange); rzi[2] = mulscale16(rzi[2],viewingrange); rzi[3] = mulscale16(rzi[3],viewingrange); if (ryi[0] < 0) //If ceilsprite is above you, reverse order of points { i = rxi[1]; rxi[1] = rxi[3]; rxi[3] = i; i = rzi[1]; rzi[1] = rzi[3]; rzi[3] = i; } //Clip polygon in 3-space npoints = 4; //Clip edge 1 npoints2 = 0; zzsgn = rxi[0]+rzi[0]; for (z=0;z= 0) { rxi2[npoints2] = rxi[z]; ryi2[npoints2] = ryi[z]; rzi2[npoints2] = rzi[z]; npoints2++; } if ((zsgn^zzsgn) < 0) { t = divscale30(zsgn,zsgn-zzsgn); rxi2[npoints2] = rxi[z] + mulscale30(t,rxi[zz]-rxi[z]); ryi2[npoints2] = ryi[z] + mulscale30(t,ryi[zz]-ryi[z]); rzi2[npoints2] = rzi[z] + mulscale30(t,rzi[zz]-rzi[z]); npoints2++; } } if (npoints2 <= 2) return; //Clip edge 2 npoints = 0; zzsgn = rxi2[0]-rzi2[0]; for (z=0;z= 0) { rxi2[npoints2] = rxi[z]; ryi2[npoints2] = ryi[z]; rzi2[npoints2] = rzi[z]; npoints2++; } if ((zsgn^zzsgn) < 0) { t = divscale30(zsgn,zsgn-zzsgn); rxi2[npoints2] = rxi[z] + mulscale30(t,rxi[zz]-rxi[z]); ryi2[npoints2] = ryi[z] + mulscale30(t,ryi[zz]-ryi[z]); rzi2[npoints2] = rzi[z] + mulscale30(t,rzi[zz]-rzi[z]); npoints2++; } } if (npoints2 <= 2) return; //Clip edge 4 npoints = 0; zzsgn = ryi2[0]*halfxdimen + (rzi2[0]*(globalhoriz-ydimen)); for (z=0;z (xdimen<<16)) xsi[z] = (xdimen<<16); if (ysi[z] < ((long)0<<16)) ysi[z] = ((long)0<<16); if (ysi[z] > ((long)ydimen<<16)) ysi[z] = ((long)ydimen<<16); if (xsi[z] < lmax) lmax = xsi[z], lpoint = z; if (xsi[z] > rmax) rmax = xsi[z], rpoint = z; } //Get uwall arrays for (z=lpoint;z!=rpoint;z=zz) { zz = z+1; if (zz == npoints) zz = 0; dax1 = ((xsi[z]+65535)>>16); dax2 = ((xsi[zz]+65535)>>16); if (dax2 > dax1) { yinc = divscale16(ysi[zz]-ysi[z],xsi[zz]-xsi[z]); y = ysi[z] + mulscale16((dax1<<16)-xsi[z],yinc); qinterpolatedown16short((long)(&uwall[dax1]),dax2-dax1,y,yinc); } } //Get dwall arrays for (;z!=lpoint;z=zz) { zz = z+1; if (zz == npoints) zz = 0; dax1 = ((xsi[zz]+65535)>>16); dax2 = ((xsi[z]+65535)>>16); if (dax2 > dax1) { yinc = divscale16(ysi[zz]-ysi[z],xsi[zz]-xsi[z]); y = ysi[zz] + mulscale16((dax1<<16)-xsi[zz],yinc); qinterpolatedown16short((long)(&dwall[dax1]),dax2-dax1,y,yinc); } } lx = ((lmax+65535)>>16); rx = ((rmax+65535)>>16); for (x=lx;x<=rx;x++) { uwall[x] = max(uwall[x],startumost[x+windowx1]-windowy1); dwall[x] = min(dwall[x],startdmost[x+windowx1]-windowy1); } //Additional uwall/dwall clipping goes here for (i=smostwallcnt-1;i>=0;i--) { j = smostwall[i]; if ((xb1[j] > rx) || (xb2[j] < lx)) continue; if ((yp <= yb1[j]) && (yp <= yb2[j])) continue; //if (spritewallfront(tspr,thewall[j]) == 0) x = thewall[j]; xp1 = wall[x].x; yp1 = wall[x].y; x = wall[x].point2; xp2 = wall[x].x; yp2 = wall[x].y; x = (xp2-xp1)*(tspr->y-yp1)-(tspr->x-xp1)*(yp2-yp1); if ((yp > yb1[j]) && (yp > yb2[j])) x = -1; if ((x >= 0) && ((x != 0) || (wall[thewall[j]].nextsector != tspr->sectnum))) continue; dalx2 = max(xb1[j],lx); darx2 = min(xb2[j],rx); switch (smostwalltype[i]) { case 0: if (dalx2 <= darx2) { if ((dalx2 == lx) && (darx2 == rx)) return; //clearbufbyte(&dwall[dalx2],(darx2-dalx2+1)*sizeof(dwall[0]),0L); for (x=dalx2; x<=darx2; x++) dwall[x] = 0; } break; case 1: k = smoststart[i] - xb1[j]; for (x=dalx2;x<=darx2;x++) if (smost[k+x] > uwall[x]) uwall[x] = smost[k+x]; break; case 2: k = smoststart[i] - xb1[j]; for (x=dalx2;x<=darx2;x++) if (smost[k+x] < dwall[x]) dwall[x] = smost[k+x]; break; } } //sprite if ((searchit >= 1) && (searchx >= lx) && (searchx <= rx)) if ((searchy >= uwall[searchx]) && (searchy <= dwall[searchx])) { searchsector = sectnum; searchwall = spritenum; searchstat = 3; searchit = 1; } globalorientation = cstat; globalpicnum = tilenum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; //if (picanm[globalpicnum]&192) globalpicnum += animateoffs((short)globalpicnum,spritenum+32768); if (waloff[globalpicnum] == 0) loadtile(globalpicnum); setgotpic(globalpicnum); globalbufplc = waloff[globalpicnum]; globvis = mulscale16(globalhisibility,viewingrange); if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); x = picsiz[globalpicnum]; y = ((x>>4)&15); x &= 15; if (pow2long[x] != xspan) { x++; globalx1 = mulscale(globalx1,xspan,x); globalx2 = mulscale(globalx2,xspan,x); } dax = globalxpanning; day = globalypanning; globalxpanning = -dmulscale6(globalx1,day,globalx2,dax); globalypanning = -dmulscale6(globaly1,day,globaly2,dax); globalx2 = mulscale16(globalx2,viewingrange); globaly2 = mulscale16(globaly2,viewingrange); globalzd = mulscale16(globalzd,viewingrangerecip); globalx1 = (globalx1-globalx2)*halfxdimen; globaly1 = (globaly1-globaly2)*halfxdimen; if ((cstat&2) == 0) msethlineshift(x,y); else tsethlineshift(x,y); //Draw it! ceilspritescan(lx,rx-1); } #ifdef SUPERBUILD else if ((cstat&48) == 48) { long nxrepeat, nyrepeat; lx = 0; rx = xdim-1; for (x=lx;x<=rx;x++) { lwall[x] = (long)startumost[x+windowx1]-windowy1; swall[x] = (long)startdmost[x+windowx1]-windowy1; } for (i=smostwallcnt-1;i>=0;i--) { j = smostwall[i]; if ((xb1[j] > rx) || (xb2[j] < lx)) continue; if ((yp <= yb1[j]) && (yp <= yb2[j])) continue; if (spritewallfront(tspr,(long)thewall[j]) && ((yp <= yb1[j]) || (yp <= yb2[j]))) continue; dalx2 = max(xb1[j],lx); darx2 = min(xb2[j],rx); switch (smostwalltype[i]) { case 0: if (dalx2 <= darx2) { if ((dalx2 == lx) && (darx2 == rx)) return; //clearbufbyte(&swall[dalx2],(darx2-dalx2+1)*sizeof(swall[0]),0L); for (x=dalx2; x<=darx2; x++) swall[x] = 0; } break; case 1: k = smoststart[i] - xb1[j]; for (x=dalx2;x<=darx2;x++) if (smost[k+x] > lwall[x]) lwall[x] = smost[k+x]; break; case 2: k = smoststart[i] - xb1[j]; for (x=dalx2;x<=darx2;x++) if (smost[k+x] < swall[x]) swall[x] = smost[k+x]; break; } } if (lwall[rx] >= swall[rx]) { for (x=lx;xxrepeat)<<16); nyrepeat = (((long)tspr->yrepeat)<<16); } else { nxrepeat = ((long)tspr->xrepeat)*voxscale[vtilenum]; nyrepeat = ((long)tspr->yrepeat)*voxscale[vtilenum]; } if (!(cstat&128)) tspr->z -= mulscale22(B_LITTLE32(longptr[5]),nyrepeat); yoff = (long)((signed char)((picanm[sprite[tspr->owner].picnum]>>16)&255))+((long)tspr->yoffset); tspr->z -= mulscale14(yoff,nyrepeat); globvis = globalvisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); if ((searchit >= 1) && (yp > (4<<8)) && (searchy >= lwall[searchx]) && (searchy < swall[searchx])) { siz = divscale19(xdimenscale,yp); xv = mulscale16(nxrepeat,xyaspect); xspan = ((B_LITTLE32(longptr[0])+B_LITTLE32(longptr[1]))>>1); yspan = B_LITTLE32(longptr[2]); xsiz = mulscale30(siz,xv*xspan); ysiz = mulscale30(siz,nyrepeat*yspan); //Watch out for divscale overflow if (((xspan>>11) < xsiz) && (yspan < (ysiz>>1))) { x1 = xb-(xsiz>>1); if (xspan&1) x1 += mulscale31(siz,xv); //Odd xspans i = mulscale30(siz,xv*xoff); if ((cstat&4) == 0) x1 -= i; else x1 += i; y1 = mulscale16(tspr->z-globalposz,siz); //y1 -= mulscale30(siz,nyrepeat*yoff); y1 += (globalhoriz<<8)-ysiz; //if (cstat&128) //Already fixed up above y1 += (ysiz>>1); x2 = x1+xsiz-1; y2 = y1+ysiz-1; if (((y1|255) < (y2|255)) && (searchx >= (x1>>8)+1) && (searchx <= (x2>>8))) { if ((sec->ceilingstat&3) == 0) startum = globalhoriz+mulscale24(siz,sec->ceilingz-globalposz)-1; else startum = 0; if ((sec->floorstat&3) == 0) startdm = globalhoriz+mulscale24(siz,sec->floorz-globalposz)+1; else startdm = 0x7fffffff; //sprite if ((searchy >= max(startum,(y1>>8))) && (searchy < min(startdm,(y2>>8)))) { searchsector = sectnum; searchwall = spritenum; searchstat = 3; searchit = 1; } } } } i = (long)tspr->ang+1536; #if defined(POLYMOST) && defined(USE_OPENGL) i += spriteext[tspr->owner].angoff; #endif drawvox(tspr->x,tspr->y,tspr->z,i,(long)tspr->xrepeat,(long)tspr->yrepeat,vtilenum,tspr->shade,tspr->pal,lwall,swall); } #endif if (automapping == 1) show2dsprite[spritenum>>3] |= pow2char[spritenum&7]; } // // drawmaskwall (internal) // static void drawmaskwall(short damaskwallcnt) { long i, j, k, x, z, sectnum, z1, z2, lx, rx; sectortype *sec, *nsec; walltype *wal; //============================================================================= //POLYMOST BEGINS #ifdef POLYMOST if (rendmode == 3) { polymost_drawmaskwall(damaskwallcnt); return; } if (rendmode == 4) { polymer_drawmaskwall(damaskwallcnt); return; } #endif //============================================================================= //POLYMOST ENDS z = maskwall[damaskwallcnt]; wal = &wall[thewall[z]]; sectnum = thesector[z]; sec = §or[sectnum]; nsec = §or[wal->nextsector]; z1 = max(nsec->ceilingz,sec->ceilingz); z2 = min(nsec->floorz,sec->floorz); wallmost(uwall,z,sectnum,(char)0); wallmost(uplc,z,(long)wal->nextsector,(char)0); for (x=xb1[z];x<=xb2[z];x++) if (uplc[x] > uwall[x]) uwall[x] = uplc[x]; wallmost(dwall,z,sectnum,(char)1); wallmost(dplc,z,(long)wal->nextsector,(char)1); for (x=xb1[z];x<=xb2[z];x++) if (dplc[x] < dwall[x]) dwall[x] = dplc[x]; prepwall(z,wal); globalorientation = (long)wal->cstat; globalpicnum = wal->overpicnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; globalxpanning = (long)wal->xpanning; globalypanning = (long)wal->ypanning; if (picanm[globalpicnum]&192) globalpicnum += animateoffs(globalpicnum,(short)thewall[z]+16384); globalshade = (long)wal->shade; globvis = globalvisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalpal = (long)wal->pal; globalshiftval = (picsiz[globalpicnum]>>4); if (pow2long[globalshiftval] != tilesizy[globalpicnum]) globalshiftval++; globalshiftval = 32-globalshiftval; globalyscale = (wal->yrepeat<<(globalshiftval-19)); if ((globalorientation&4) == 0) globalzd = (((globalposz-z1)*globalyscale)<<8); else globalzd = (((globalposz-z2)*globalyscale)<<8); globalzd += (globalypanning<<24); if (globalorientation&256) globalyscale = -globalyscale, globalzd = -globalzd; for (i=smostwallcnt-1;i>=0;i--) { j = smostwall[i]; if ((xb1[j] > xb2[z]) || (xb2[j] < xb1[z])) continue; if (wallfront(j,z)) continue; lx = max(xb1[j],xb1[z]); rx = min(xb2[j],xb2[z]); switch (smostwalltype[i]) { case 0: if (lx <= rx) { if ((lx == xb1[z]) && (rx == xb2[z])) return; //clearbufbyte(&dwall[lx],(rx-lx+1)*sizeof(dwall[0]),0L); for (x=lx; x<=rx; x++) dwall[x] = 0; } break; case 1: k = smoststart[i] - xb1[j]; for (x=lx;x<=rx;x++) if (smost[k+x] > uwall[x]) uwall[x] = smost[k+x]; break; case 2: k = smoststart[i] - xb1[j]; for (x=lx;x<=rx;x++) if (smost[k+x] < dwall[x]) dwall[x] = smost[k+x]; break; } } //maskwall if ((searchit >= 1) && (searchx >= xb1[z]) && (searchx <= xb2[z])) if ((searchy >= uwall[searchx]) && (searchy <= dwall[searchx])) { searchsector = sectnum; searchwall = thewall[z]; searchstat = 4; searchit = 1; } if ((globalorientation&128) == 0) maskwallscan(xb1[z],xb2[z],uwall,dwall,swall,lwall); else { if (globalorientation&128) { if (globalorientation&512) settransreverse(); else settransnormal(); } transmaskwallscan(xb1[z],xb2[z]); } } // // fillpolygon (internal) // static void fillpolygon(long npoints) { long z, zz, x1, y1, x2, y2, miny, maxy, y, xinc, cnt; long ox, oy, bx, by, p, day1, day2; short *ptr, *ptr2; #if defined POLYMOST && defined USE_OPENGL if (rendmode >= 3) { polymost_fillpolygon(npoints); return; } #endif miny = 0x7fffffff; maxy = 0x80000000; for (z=npoints-1;z>=0;z--) { y = ry1[z]; miny = min(miny,y); maxy = max(maxy,y); } miny = (miny>>12); maxy = (maxy>>12); if (miny < 0) miny = 0; if (maxy >= ydim) maxy = ydim-1; ptr = smost; //They're pointers! - watch how you optimize this thing for (y=miny;y<=maxy;y++) { dotp1[y] = ptr; dotp2[y] = ptr+(MAXNODESPERLINE>>1); ptr += MAXNODESPERLINE; } for (z=npoints-1;z>=0;z--) { zz = xb1[z]; y1 = ry1[z]; day1 = (y1>>12); y2 = ry1[zz]; day2 = (y2>>12); if (day1 != day2) { x1 = rx1[z]; x2 = rx1[zz]; xinc = divscale12(x2-x1,y2-y1); if (day2 > day1) { x1 += mulscale12((day1<<12)+4095-y1,xinc); for (y=day1;y>12); x1 += xinc; } } else { x2 += mulscale12((day2<<12)+4095-y2,xinc); for (y=day2;y>12); x2 += xinc; } } } } globalx1 = mulscale16(globalx1,xyaspect); globaly2 = mulscale16(globaly2,xyaspect); oy = miny+1-(ydim>>1); globalposx += oy*globalx1; globalposy += oy*globaly2; setuphlineasm4(asm1,asm2); ptr = smost; for (y=miny;y<=maxy;y++) { cnt = dotp1[y]-ptr; ptr2 = ptr+(MAXNODESPERLINE>>1); for (z=cnt-1;z>=0;z--) { day1 = 0; day2 = 0; for (zz=z;zz>0;zz--) { if (ptr[zz] < ptr[day1]) day1 = zz; if (ptr2[zz] < ptr2[day2]) day2 = zz; } x1 = ptr[day1]; ptr[day1] = ptr[z]; x2 = ptr2[day2]-1; ptr2[day2] = ptr2[z]; if (x1 > x2) continue; if (globalpolytype < 1) { //maphline ox = x2+1-(xdim>>1); bx = ox*asm1 + globalposx; by = ox*asm2 - globalposy; p = ylookup[y]+x2+frameplace; hlineasm4(x2-x1,-1L,globalshade<<8,by,bx,p); } else { //maphline ox = x1+1-(xdim>>1); bx = ox*asm1 + globalposx; by = ox*asm2 - globalposy; p = ylookup[y]+x1+frameplace; if (globalpolytype == 1) mhline(globalbufplc,bx,(x2-x1)<<16,0L,by,p); else { thline(globalbufplc,bx,(x2-x1)<<16,0L,by,p); } } } globalposx += globalx1; globalposy += globaly2; ptr += MAXNODESPERLINE; } faketimerhandler(); } // // clippoly (internal) // static long clippoly(long npoints, long clipstat) { long z, zz, s1, s2, t, npoints2, start2, z1, z2, z3, z4, splitcnt; long cx1, cy1, cx2, cy2; cx1 = windowx1; cy1 = windowy1; cx2 = windowx2+1; cy2 = windowy2+1; cx1 <<= 12; cy1 <<= 12; cx2 <<= 12; cy2 <<= 12; if (clipstat&0xa) //Need to clip top or left { npoints2 = 0; start2 = 0; z = 0; splitcnt = 0; do { s2 = cx1-rx1[z]; do { zz = xb1[z]; xb1[z] = -1; s1 = s2; s2 = cx1-rx1[zz]; if (s1 < 0) { rx2[npoints2] = rx1[z]; ry2[npoints2] = ry1[z]; xb2[npoints2] = npoints2+1; npoints2++; } if ((s1^s2) < 0) { rx2[npoints2] = rx1[z]+scale(rx1[zz]-rx1[z],s1,s1-s2); ry2[npoints2] = ry1[z]+scale(ry1[zz]-ry1[z],s1,s1-s2); if (s1 < 0) p2[splitcnt++] = npoints2; xb2[npoints2] = npoints2+1; npoints2++; } z = zz; } while (xb1[z] >= 0); if (npoints2 >= start2+3) xb2[npoints2-1] = start2, start2 = npoints2; else npoints2 = start2; z = 1; while ((z < npoints) && (xb1[z] < 0)) z++; } while (z < npoints); if (npoints2 <= 2) return(0); for (z=1;z= 0); if (npoints >= start2+3) xb1[npoints-1] = start2, start2 = npoints; else npoints = start2; z = 1; while ((z < npoints2) && (xb2[z] < 0)) z++; } while (z < npoints2); if (npoints <= 2) return(0); for (z=1;z= 0); if (npoints2 >= start2+3) xb2[npoints2-1] = start2, start2 = npoints2; else npoints2 = start2; z = 1; while ((z < npoints) && (xb1[z] < 0)) z++; } while (z < npoints); if (npoints2 <= 2) return(0); for (z=1;z= 0); if (npoints >= start2+3) xb1[npoints-1] = start2, start2 = npoints; else npoints = start2; z = 1; while ((z < npoints2) && (xb2[z] < 0)) z++; } while (z < npoints2); if (npoints <= 2) return(0); for (z=1;z= 3) { polymost_dorotatesprite(sx,sy,z,a,picnum,dashade,dapalnum,dastat,cx1,cy1,cx2,cy2,uniqid); return; } if (rendmode == 4) { polymer_rotatesprite(sx,sy,z,a,picnum,dashade,dapalnum,dastat,cx1,cy1,cx2,cy2); return; } #endif //============================================================================= //POLYMOST ENDS if (cx1 < 0) cx1 = 0; if (cy1 < 0) cy1 = 0; if (cx2 > xres-1) cx2 = xres-1; if (cy2 > yres-1) cy2 = yres-1; xsiz = tilesizx[picnum]; ysiz = tilesizy[picnum]; if (dastat&16) { xoff = 0; yoff = 0; } else { xoff = (long)((signed char)((picanm[picnum]>>8)&255))+(xsiz>>1); yoff = (long)((signed char)((picanm[picnum]>>16)&255))+(ysiz>>1); } if (dastat&4) yoff = ysiz-yoff; cosang = sintable[(a+512)&2047]; sinang = sintable[a&2047]; if ((dastat&2) != 0) //Auto window size scaling { if ((dastat&8) == 0) { x = xdimenscale; //= scale(xdimen,yxaspect,320); sx = ((cx1+cx2+2)<<15)+scale(sx-(320<<15),xdimen,320); sy = ((cy1+cy2+2)<<15)+mulscale16(sy-(200<<15),x); } else { //If not clipping to startmosts, & auto-scaling on, as a //hard-coded bonus, scale to full screen instead x = scale(xdim,yxaspect,320); sx = (xdim<<15)+32768+scale(sx-(320<<15),xdim,320); sy = (ydim<<15)+32768+mulscale16(sy-(200<<15),x); } z = mulscale16(z,x); } xv = mulscale14(cosang,z); yv = mulscale14(sinang,z); if (((dastat&2) != 0) || ((dastat&8) == 0)) //Don't aspect unscaled perms { xv2 = mulscale16(xv,xyaspect); yv2 = mulscale16(yv,xyaspect); } else { xv2 = xv; yv2 = yv; } nry1[0] = sy - (yv*xoff + xv*yoff); nry1[1] = nry1[0] + yv*xsiz; nry1[3] = nry1[0] + xv*ysiz; nry1[2] = nry1[1]+nry1[3]-nry1[0]; i = (cy1<<16); if ((nry1[0]i) && (nry1[1]>i) && (nry1[2]>i) && (nry1[3]>i)) return; nrx1[0] = sx - (xv2*xoff - yv2*yoff); nrx1[1] = nrx1[0] + xv2*xsiz; nrx1[3] = nrx1[0] - yv2*ysiz; nrx1[2] = nrx1[1]+nrx1[3]-nrx1[0]; i = (cx1<<16); if ((nrx1[0]i) && (nrx1[1]>i) && (nrx1[2]>i) && (nrx1[3]>i)) return; gx1 = nrx1[0]; gy1 = nry1[0]; //back up these before clipping if ((npoints = clippoly4(cx1<<16,cy1<<16,(cx2+1)<<16,(cy2+1)<<16)) < 3) return; lx = nrx1[0]; rx = nrx1[0]; nextv = 0; for (v=npoints-1;v>=0;v--) { x1 = nrx1[v]; x2 = nrx1[nextv]; dax1 = (x1>>16); if (x1 < lx) lx = x1; dax2 = (x2>>16); if (x1 > rx) rx = x1; if (dax1 != dax2) { y1 = nry1[v]; y2 = nry1[nextv]; yinc = divscale16(y2-y1,x2-x1); if (dax2 > dax1) { yplc = y1 + mulscale16((dax1<<16)+65535-x1,yinc); qinterpolatedown16short((long)(&uplc[dax1]),dax2-dax1,yplc,yinc); } else { yplc = y2 + mulscale16((dax2<<16)+65535-x2,yinc); qinterpolatedown16short((long)(&dplc[dax2]),dax1-dax2,yplc,yinc); } } nextv = v; } if (waloff[picnum] == 0) loadtile(picnum); setgotpic(picnum); bufplc = waloff[picnum]; if (palookup[dapalnum] == NULL) dapalnum = 0; palookupoffs = FP_OFF(palookup[dapalnum]) + (getpalookup(0L,(long)dashade)<<8); i = divscale32(1L,z); xv = mulscale14(sinang,i); yv = mulscale14(cosang,i); if (((dastat&2) != 0) || ((dastat&8) == 0)) //Don't aspect unscaled perms { yv2 = mulscale16(-xv,yxaspect); xv2 = mulscale16(yv,yxaspect); } else { yv2 = -xv; xv2 = yv; } x1 = (lx>>16); x2 = (rx>>16); oy = 0; x = (x1<<16)-1-gx1; y = (oy<<16)+65535-gy1; bx = dmulscale16(x,xv2,y,xv); by = dmulscale16(x,yv2,y,yv); if (dastat&4) { yv = -yv; yv2 = -yv2; by = (ysiz<<16)-1-by; } /* if (origbuffermode == 0) { if (dastat&128) { obuffermode = buffermode; buffermode = 0; setactivepage(activepage); } } else if (dastat&8) permanentupdate = 1; */ #ifndef ENGINE_USING_A_C if ((dastat&1) == 0) { if (((a&1023) == 0) && (ysiz <= 256)) //vlineasm4 has 256 high limit! { if (dastat&64) setupvlineasm(24L); else setupmvlineasm(24L); by <<= 8; yv <<= 8; yv2 <<= 8; palookupoffse[0] = palookupoffse[1] = palookupoffse[2] = palookupoffse[3] = palookupoffs; vince[0] = vince[1] = vince[2] = vince[3] = yv; for (x=x1;x y1) y1 = startumost[x+xx]; if (startdmost[x+xx] < y2) y2 = startdmost[x+xx]; } if (y2 <= y1) continue; by += yv*(y1-oy); oy = y1; bufplce[xx] = (bx>>16)*ysiz+bufplc; vplce[xx] = by; y1ve[xx] = y1; y2ve[xx] = y2-1; bad &= ~pow2char[xx]; } p = x+frameplace; u4 = max(max(y1ve[0],y1ve[1]),max(y1ve[2],y1ve[3])); d4 = min(min(y2ve[0],y2ve[1]),min(y2ve[2],y2ve[3])); if (dastat&64) { if ((bad != 0) || (u4 >= d4)) { if (!(bad&1)) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0],vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0); if (!(bad&2)) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-y1ve[1],vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1); if (!(bad&4)) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-y1ve[2],vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2); if (!(bad&8)) prevlineasm1(vince[3],palookupoffse[3],y2ve[3]-y1ve[3],vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3); continue; } if (u4 > y1ve[0]) vplce[0] = prevlineasm1(vince[0],palookupoffse[0],u4-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0); if (u4 > y1ve[1]) vplce[1] = prevlineasm1(vince[1],palookupoffse[1],u4-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1); if (u4 > y1ve[2]) vplce[2] = prevlineasm1(vince[2],palookupoffse[2],u4-y1ve[2]-1,vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2); if (u4 > y1ve[3]) vplce[3] = prevlineasm1(vince[3],palookupoffse[3],u4-y1ve[3]-1,vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3); if (d4 >= u4) vlineasm4(d4-u4+1,ylookup[u4]+p); i = p+ylookup[d4+1]; if (y2ve[0] > d4) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0); if (y2ve[1] > d4) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1); if (y2ve[2] > d4) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2); if (y2ve[3] > d4) prevlineasm1(vince[3],palookupoffse[3],y2ve[3]-d4-1,vplce[3],bufplce[3],i+3); } else { if ((bad != 0) || (u4 >= d4)) { if (!(bad&1)) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-y1ve[0],vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0); if (!(bad&2)) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-y1ve[1],vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1); if (!(bad&4)) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-y1ve[2],vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2); if (!(bad&8)) mvlineasm1(vince[3],palookupoffse[3],y2ve[3]-y1ve[3],vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3); continue; } if (u4 > y1ve[0]) vplce[0] = mvlineasm1(vince[0],palookupoffse[0],u4-y1ve[0]-1,vplce[0],bufplce[0],ylookup[y1ve[0]]+p+0); if (u4 > y1ve[1]) vplce[1] = mvlineasm1(vince[1],palookupoffse[1],u4-y1ve[1]-1,vplce[1],bufplce[1],ylookup[y1ve[1]]+p+1); if (u4 > y1ve[2]) vplce[2] = mvlineasm1(vince[2],palookupoffse[2],u4-y1ve[2]-1,vplce[2],bufplce[2],ylookup[y1ve[2]]+p+2); if (u4 > y1ve[3]) vplce[3] = mvlineasm1(vince[3],palookupoffse[3],u4-y1ve[3]-1,vplce[3],bufplce[3],ylookup[y1ve[3]]+p+3); if (d4 >= u4) mvlineasm4(d4-u4+1,ylookup[u4]+p); i = p+ylookup[d4+1]; if (y2ve[0] > d4) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0); if (y2ve[1] > d4) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1); if (y2ve[2] > d4) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2); if (y2ve[3] > d4) mvlineasm1(vince[3],palookupoffse[3],y2ve[3]-d4-1,vplce[3],bufplce[3],i+3); } faketimerhandler(); } } else { if (dastat&64) { if ((xv2&0x0000ffff) == 0) { qlinemode = 1; setupqrhlineasm4(0L,yv2<<16,(xv2>>16)*ysiz+(yv2>>16),palookupoffs,0L,0L); } else { qlinemode = 0; setuprhlineasm4(xv2<<16,yv2<<16,(xv2>>16)*ysiz+(yv2>>16),palookupoffs,ysiz,0L); } } else setuprmhlineasm4(xv2<<16,yv2<<16,(xv2>>16)*ysiz+(yv2>>16),palookupoffs,ysiz,0L); y1 = uplc[x1]; if (((dastat&8) == 0) && (startumost[x1] > y1)) y1 = startumost[x1]; y2 = y1; for (x=x1;x ny1) ny1 = startumost[x]-1; if (startdmost[x] < ny2) ny2 = startdmost[x]; } if (ny1 < ny2-1) { if (ny1 >= y2) { while (y1 < y2-1) { y1++; if ((y1&31) == 0) faketimerhandler(); //x,y1 bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1; if (dastat&64) { if (qlinemode) qrhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L ,by<<16,ylookup[y1]+x+frameplace); else rhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace); } else rmhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace); } y1 = ny1; } else { while (y1 < ny1) { y1++; if ((y1&31) == 0) faketimerhandler(); //x,y1 bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1; if (dastat&64) { if (qlinemode) qrhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L ,by<<16,ylookup[y1]+x+frameplace); else rhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace); } else rmhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace); } while (y1 > ny1) lastx[y1--] = x; } while (y2 > ny2) { y2--; if ((y2&31) == 0) faketimerhandler(); //x,y2 bx += xv*(y2-oy); by += yv*(y2-oy); oy = y2; if (dastat&64) { if (qlinemode) qrhlineasm4(x-lastx[y2],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L ,by<<16,ylookup[y2]+x+frameplace); else rhlineasm4(x-lastx[y2],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y2]+x+frameplace); } else rmhlineasm4(x-lastx[y2],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y2]+x+frameplace); } while (y2 < ny2) lastx[y2++] = x; } else { while (y1 < y2-1) { y1++; if ((y1&31) == 0) faketimerhandler(); //x,y1 bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1; if (dastat&64) { if (qlinemode) qrhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L ,by<<16,ylookup[y1]+x+frameplace); else rhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace); } else rmhlineasm4(x-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x+frameplace); } if (x == x2-1) { bx += xv2; by += yv2; break; } y1 = uplc[x+1]; if (((dastat&8) == 0) && (startumost[x+1] > y1)) y1 = startumost[x+1]; y2 = y1; } bx += xv2; by += yv2; } while (y1 < y2-1) { y1++; if ((y1&31) == 0) faketimerhandler(); //x2,y1 bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1; if (dastat&64) { if (qlinemode) qrhlineasm4(x2-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,0L,by<<16,ylookup[y1]+x2+frameplace); else rhlineasm4(x2-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x2+frameplace); } else rmhlineasm4(x2-lastx[y1],(bx>>16)*ysiz+(by>>16)+bufplc,0L,bx<<16,by<<16,ylookup[y1]+x2+frameplace); } } } else { if ((dastat&1) == 0) { if (dastat&64) setupspritevline(palookupoffs,(xv>>16)*ysiz,xv<<16,ysiz,yv,0L); else msetupspritevline(palookupoffs,(xv>>16)*ysiz,xv<<16,ysiz,yv,0L); } else { tsetupspritevline(palookupoffs,(xv>>16)*ysiz,xv<<16,ysiz,yv,0L); if (dastat&32) settransreverse(); else settransnormal(); } for (x=x1;x y1) y1 = startumost[x]; if (startdmost[x] < y2) y2 = startdmost[x]; } if (y2 <= y1) continue; switch (y1-oy) { case -1: bx -= xv; by -= yv; oy = y1; break; case 0: break; case 1: bx += xv; by += yv; oy = y1; break; default: bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1; break; } p = ylookup[y1]+x+frameplace; if ((dastat&1) == 0) { if (dastat&64) spritevline(0L,by<<16,y2-y1+1,bx<<16,(bx>>16)*ysiz+(by>>16)+bufplc,p); else mspritevline(0L,by<<16,y2-y1+1,bx<<16,(bx>>16)*ysiz+(by>>16)+bufplc,p); } else { tspritevline(0L,by<<16,y2-y1+1,bx<<16,(bx>>16)*ysiz+(by>>16)+bufplc,p); } faketimerhandler(); } } #else // ENGINE_USING_A_C if ((dastat&1) == 0) { if (dastat&64) setupspritevline(palookupoffs,xv,yv,ysiz); else msetupspritevline(palookupoffs,xv,yv,ysiz); } else { tsetupspritevline(palookupoffs,xv,yv,ysiz); if (dastat&32) settransreverse(); else settransnormal(); } for (x=x1;x y1) y1 = startumost[x]; if (startdmost[x] < y2) y2 = startdmost[x]; } if (y2 <= y1) continue; switch (y1-oy) { case -1: bx -= xv; by -= yv; oy = y1; break; case 0: break; case 1: bx += xv; by += yv; oy = y1; break; default: bx += xv*(y1-oy); by += yv*(y1-oy); oy = y1; break; } p = ylookup[y1]+x+frameplace; if ((dastat&1) == 0) { if (dastat&64) spritevline(bx&65535,by&65535,y2-y1+1,(bx>>16)*ysiz+(by>>16)+bufplc,p); else mspritevline(bx&65535,by&65535,y2-y1+1,(bx>>16)*ysiz+(by>>16)+bufplc,p); } else { tspritevline(bx&65535,by&65535,y2-y1+1,(bx>>16)*ysiz+(by>>16)+bufplc,p); //transarea += (y2-y1); } faketimerhandler(); } #endif /* if ((dastat&128) && (origbuffermode == 0)) { buffermode = obuffermode; setactivepage(activepage); }*/ } // // initksqrt (internal) // static void initksqrt(void) { long i, j, k; j = 1; k = 0; for (i=0;i<4096;i++) { if (i >= j) { j <<= 2; k++; } sqrtable[i] = (unsigned short)(msqrtasm((i<<18)+131072)<<1); shlookup[i] = (k<<1)+((10-k)<<8); if (i < 256) shlookup[i+4096] = ((k+6)<<1)+((10-(k+6))<<8); } } // // dosetaspect // static void dosetaspect(void) { long i, j, k, x, xinc,a; if (xyaspect != oxyaspect) { oxyaspect = xyaspect; j = xyaspect*320; horizlookup2[horizycent-1] = divscale26(131072,j); for (i=ydim*4-1;i>=0;i--) if (i != (horizycent-1)) { horizlookup[i] = divscale28(1,i-(horizycent-1)); horizlookup2[i] = divscale14(klabs(horizlookup[i]),j); } } if ((xdimen != oxdimen) || (viewingrange != oviewingrange)) { oxdimen = xdimen; oviewingrange = viewingrange; xinc = mulscale32(viewingrange*320,xdimenrecip); x = (640<<16)-mulscale1(xinc,xdimen); for (i=0;i>16); x += xinc; if (j != 0) j = mulscale16((long)radarang[k+1]-(long)radarang[k],j); radarang2[i] = (short)(((long)radarang[k]+j)>>6); } #ifdef SUPERBUILD for (i=1;i<65536;i++) distrecip[i] = divscale20(xdimen,i); nytooclose = xdimen*2100; nytoofar = 65536*16384-1048576; #endif } } // // loadtables (internal) // static void calcbritable(void) { int i,j; double a,b; for (i=0;i<16;i++) { a = (double)8 / ((double)i+8); b = (double)255 / pow((double)255,a); for (j=0;j<256;j++) // JBF 20040207: full 8bit precision britable[i][j] = (char)(pow((double)j,a)*b); } } static int loadtables(void) { long i, fil; if (tablesloaded == 0) { initksqrt(); for (i=0;i<2048;i++) reciptable[i] = divscale30(2048L,i+2048); if ((fil = kopen4load("tables.dat",0)) != -1) { kread(fil,sintable,2048*2); for (i=2048-1; i>=0; i--) sintable[i] = B_LITTLE16(sintable[i]); kread(fil,radarang,640*2); for (i=640-1; i>=0; i--) radarang[i] = B_LITTLE16(radarang[i]); for (i=0;i<640;i++) radarang[1279-i] = -radarang[i]; //kread(fil,textfont,1024); //kread(fil,smalltextfont,1024); //kread(fil,britable,1024); calcbritable(); kclose(fil); } else { engineerrstr = "Failed to load TABLES.DAT!"; initprintf("ERROR: %s\n", engineerrstr); return 1; } tablesloaded = 1; } return 0; } // // initfastcolorlookup (internal) // static void initfastcolorlookup(long rscale, long gscale, long bscale) { long i, j, x, y, z; char *pal1; j = 0; for (i=64;i>=0;i--) { //j = (i-64)*(i-64); rdist[i] = rdist[128-i] = j*rscale; gdist[i] = gdist[128-i] = j*gscale; bdist[i] = bdist[128-i] = j*bscale; j += 129-(i<<1); } //clearbufbyte(colhere,sizeof(colhere),0L); //clearbufbyte(colhead,sizeof(colhead),0L); Bmemset(colhere,0,sizeof(colhere)); Bmemset(colhead,0,sizeof(colhead)); pal1 = (char *)&palette[768-3]; for (i=255;i>=0;i--,pal1-=3) { j = (pal1[0]>>3)*FASTPALGRIDSIZ*FASTPALGRIDSIZ+(pal1[1]>>3)*FASTPALGRIDSIZ+(pal1[2]>>3)+FASTPALGRIDSIZ*FASTPALGRIDSIZ+FASTPALGRIDSIZ+1; if (colhere[j>>3]&pow2char[j&7]) colnext[i] = colhead[j]; else colnext[i] = -1; colhead[j] = i; colhere[j>>3] |= pow2char[j&7]; } i = 0; for (x=-FASTPALGRIDSIZ*FASTPALGRIDSIZ;x<=FASTPALGRIDSIZ*FASTPALGRIDSIZ;x+=FASTPALGRIDSIZ*FASTPALGRIDSIZ) for (y=-FASTPALGRIDSIZ;y<=FASTPALGRIDSIZ;y+=FASTPALGRIDSIZ) for (z=-1;z<=1;z++) colscan[i++] = x+y+z; i = colscan[13]; colscan[13] = colscan[26]; colscan[26] = i; } // // loadpalette (internal) // static void loadpalette(void) { long fil,i; if (paletteloaded != 0) return; if ((fil = kopen4load("palette.dat",0)) == -1) return; kread(fil,palette,768); kread(fil,&numpalookups,2); numpalookups = B_LITTLE16(numpalookups); if ((palookup[0] = (char *)kkmalloc(numpalookups<<8)) == NULL) allocache((long*)&palookup[0],numpalookups<<8,&permanentlock); if ((transluc = (char *)kkmalloc(65536L)) == NULL) allocache((long*)&transluc,65536,&permanentlock); globalpalwritten = palookup[0]; globalpal = 0; setpalookupaddress(globalpalwritten); fixtransluscence(FP_OFF(transluc)); kread(fil,palookup[globalpal],numpalookups<<8); kread(fil,transluc,65536); kclose(fil); initfastcolorlookup(30L,59L,11L); paletteloaded = 1; } // // getclosestcol (internal) // static long getclosestcol(long r, long g, long b) { long i, j, k, dist, mindist, retcol; char *pal1; j = (r>>3)*FASTPALGRIDSIZ*FASTPALGRIDSIZ+(g>>3)*FASTPALGRIDSIZ+(b>>3)+FASTPALGRIDSIZ*FASTPALGRIDSIZ+FASTPALGRIDSIZ+1; mindist = min(rdist[coldist[r&7]+64+8],gdist[coldist[g&7]+64+8]); mindist = min(mindist,bdist[coldist[b&7]+64+8]); mindist++; r = 64-r; g = 64-g; b = 64-b; retcol = -1; for (k=26;k>=0;k--) { i = colscan[k]+j; if ((colhere[i>>3]&pow2char[i&7]) == 0) continue; i = colhead[i]; do { pal1 = (char *)&palette[i*3]; dist = gdist[pal1[1]+g]; if (dist < mindist) { dist += rdist[pal1[0]+r]; if (dist < mindist) { dist += bdist[pal1[2]+b]; if (dist < mindist) { mindist = dist; retcol = i; } } } i = colnext[i]; } while (i >= 0); } if (retcol >= 0) return(retcol); mindist = 0x7fffffff; pal1 = (char *)&palette[768-3]; for (i=255;i>=0;i--,pal1-=3) { dist = gdist[pal1[1]+g]; if (dist >= mindist) continue; dist += rdist[pal1[0]+r]; if (dist >= mindist) continue; dist += bdist[pal1[2]+b]; if (dist >= mindist) continue; mindist = dist; retcol = i; } return(retcol); } // // insertspritesect (internal) // static long insertspritesect(short sectnum) { short blanktouse; if ((sectnum >= MAXSECTORS) || (headspritesect[MAXSECTORS] == -1)) return(-1); //list full blanktouse = headspritesect[MAXSECTORS]; headspritesect[MAXSECTORS] = nextspritesect[blanktouse]; if (headspritesect[MAXSECTORS] >= 0) prevspritesect[headspritesect[MAXSECTORS]] = -1; prevspritesect[blanktouse] = -1; nextspritesect[blanktouse] = headspritesect[sectnum]; if (headspritesect[sectnum] >= 0) prevspritesect[headspritesect[sectnum]] = blanktouse; headspritesect[sectnum] = blanktouse; sprite[blanktouse].sectnum = sectnum; return(blanktouse); } // // insertspritestat (internal) // static long insertspritestat(short statnum) { short blanktouse; if ((statnum >= MAXSTATUS) || (headspritestat[MAXSTATUS] == -1)) return(-1); //list full blanktouse = headspritestat[MAXSTATUS]; headspritestat[MAXSTATUS] = nextspritestat[blanktouse]; if (headspritestat[MAXSTATUS] >= 0) prevspritestat[headspritestat[MAXSTATUS]] = -1; prevspritestat[blanktouse] = -1; nextspritestat[blanktouse] = headspritestat[statnum]; if (headspritestat[statnum] >= 0) prevspritestat[headspritestat[statnum]] = blanktouse; headspritestat[statnum] = blanktouse; sprite[blanktouse].statnum = statnum; return(blanktouse); } // // deletespritesect (internal) // static long deletespritesect(short deleteme) { if (sprite[deleteme].sectnum == MAXSECTORS) return(-1); if (headspritesect[sprite[deleteme].sectnum] == deleteme) headspritesect[sprite[deleteme].sectnum] = nextspritesect[deleteme]; if (prevspritesect[deleteme] >= 0) nextspritesect[prevspritesect[deleteme]] = nextspritesect[deleteme]; if (nextspritesect[deleteme] >= 0) prevspritesect[nextspritesect[deleteme]] = prevspritesect[deleteme]; if (headspritesect[MAXSECTORS] >= 0) prevspritesect[headspritesect[MAXSECTORS]] = deleteme; prevspritesect[deleteme] = -1; nextspritesect[deleteme] = headspritesect[MAXSECTORS]; headspritesect[MAXSECTORS] = deleteme; sprite[deleteme].sectnum = MAXSECTORS; return(0); } // // deletespritestat (internal) // static long deletespritestat(short deleteme) { if (sprite[deleteme].statnum == MAXSTATUS) return(-1); if (headspritestat[sprite[deleteme].statnum] == deleteme) headspritestat[sprite[deleteme].statnum] = nextspritestat[deleteme]; if (prevspritestat[deleteme] >= 0) nextspritestat[prevspritestat[deleteme]] = nextspritestat[deleteme]; if (nextspritestat[deleteme] >= 0) prevspritestat[nextspritestat[deleteme]] = prevspritestat[deleteme]; if (headspritestat[MAXSTATUS] >= 0) prevspritestat[headspritestat[MAXSTATUS]] = deleteme; prevspritestat[deleteme] = -1; nextspritestat[deleteme] = headspritestat[MAXSTATUS]; headspritestat[MAXSTATUS] = deleteme; sprite[deleteme].statnum = MAXSTATUS; return(0); } // // lintersect (internal) // static long lintersect(long x1, long y1, long z1, long x2, long y2, long z2, long x3, long y3, long x4, long y4, long *intx, long *inty, long *intz) { //p1 to p2 is a line segment long x21, y21, x34, y34, x31, y31, bot, topt, topu, t; x21 = x2-x1; x34 = x3-x4; y21 = y2-y1; y34 = y3-y4; bot = x21*y34 - y21*x34; if (bot >= 0) { if (bot == 0) return(0); x31 = x3-x1; y31 = y3-y1; topt = x31*y34 - y31*x34; if ((topt < 0) || (topt >= bot)) return(0); topu = x21*y31 - y21*x31; if ((topu < 0) || (topu >= bot)) return(0); } else { x31 = x3-x1; y31 = y3-y1; topt = x31*y34 - y31*x34; if ((topt > 0) || (topt <= bot)) return(0); topu = x21*y31 - y21*x31; if ((topu > 0) || (topu <= bot)) return(0); } t = divscale24(topt,bot); *intx = x1 + mulscale24(x21,t); *inty = y1 + mulscale24(y21,t); *intz = z1 + mulscale24(z2-z1,t); return(1); } // // rintersect (internal) // static long rintersect(long x1, long y1, long z1, long vx, long vy, long vz, long x3, long y3, long x4, long y4, long *intx, long *inty, long *intz) { //p1 towards p2 is a ray long x34, y34, x31, y31, bot, topt, topu, t; x34 = x3-x4; y34 = y3-y4; bot = vx*y34 - vy*x34; if (bot >= 0) { if (bot == 0) return(0); x31 = x3-x1; y31 = y3-y1; topt = x31*y34 - y31*x34; if (topt < 0) return(0); topu = vx*y31 - vy*x31; if ((topu < 0) || (topu >= bot)) return(0); } else { x31 = x3-x1; y31 = y3-y1; topt = x31*y34 - y31*x34; if (topt > 0) return(0); topu = vx*y31 - vy*x31; if ((topu > 0) || (topu <= bot)) return(0); } t = divscale16(topt,bot); *intx = x1 + mulscale16(vx,t); *inty = y1 + mulscale16(vy,t); *intz = z1 + mulscale16(vz,t); return(1); } // // keepaway (internal) // static void keepaway (long *x, long *y, long w) { long dx, dy, ox, oy, x1, y1; char first; x1 = clipit[w].x1; dx = clipit[w].x2-x1; y1 = clipit[w].y1; dy = clipit[w].y2-y1; ox = ksgn(-dy); oy = ksgn(dx); first = (klabs(dx) <= klabs(dy)); while (1) { if (dx*(*y-y1) > (*x-x1)*dy) return; if (first == 0) *x += ox; else *y += oy; first ^= 1; } } // // raytrace (internal) // static long raytrace(long x3, long y3, long *x4, long *y4) { long x1, y1, x2, y2, bot, topu, nintx, ninty, cnt, z, hitwall; long x21, y21, x43, y43; hitwall = -1; for (z=clipnum-1;z>=0;z--) { x1 = clipit[z].x1; x2 = clipit[z].x2; x21 = x2-x1; y1 = clipit[z].y1; y2 = clipit[z].y2; y21 = y2-y1; topu = x21*(y3-y1) - (x3-x1)*y21; if (topu <= 0) continue; if (x21*(*y4-y1) > (*x4-x1)*y21) continue; x43 = *x4-x3; y43 = *y4-y3; if (x43*(y1-y3) > (x1-x3)*y43) continue; if (x43*(y2-y3) <= (x2-x3)*y43) continue; bot = x43*y21 - x21*y43; if (bot == 0) continue; cnt = 256; do { cnt--; if (cnt < 0) { *x4 = x3; *y4 = y3; return(z); } nintx = x3 + scale(x43,topu,bot); ninty = y3 + scale(y43,topu,bot); topu--; } while (x21*(ninty-y1) <= (nintx-x1)*y21); if (klabs(x3-nintx)+klabs(y3-ninty) < klabs(x3-*x4)+klabs(y3-*y4)) { *x4 = nintx; *y4 = ninty; hitwall = z; } } return(hitwall); } // // Exported Engine Functions // #if !defined _WIN32 && defined DEBUGGINGAIDS #include static void sighandler(int sig, const siginfo_t *info, void *ctx) { const char *s; switch (sig) { case SIGFPE: switch (info->si_code) { case FPE_INTDIV: s = "FPE_INTDIV (integer divide by zero)"; break; case FPE_INTOVF: s = "FPE_INTOVF (integer overflow)"; break; case FPE_FLTDIV: s = "FPE_FLTDIV (floating-point divide by zero)"; break; case FPE_FLTOVF: s = "FPE_FLTOVF (floating-point overflow)"; break; case FPE_FLTUND: s = "FPE_FLTUND (floating-point underflow)"; break; case FPE_FLTRES: s = "FPE_FLTRES (floating-point inexact result)"; break; case FPE_FLTINV: s = "FPE_FLTINV (floating-point invalid operation)"; break; case FPE_FLTSUB: s = "FPE_FLTSUB (floating-point subscript out of range)"; break; default: s = "?! (unknown)"; break; } fprintf(stderr, "Caught SIGFPE at address %p, code %s. Aborting.\n", info->si_addr, s); break; default: break; } abort(); } #endif // // preinitengine // static int preinitcalled = 0; int preinitengine(void) { char *e; if (initsystem()) exit(1); if ((e = Bgetenv("BUILD_NOP6")) != NULL) if (!Bstrcasecmp(e, "TRUE")) { Bprintf("Disabling P6 optimizations.\n"); dommxoverlay = 0; } if (dommxoverlay) mmxoverlay(); validmodecnt = 0; getvalidmodes(); initcrc32table(); preinitcalled = 1; return 0; } // // initengine // int initengine(void) { long i, j; #if !defined _WIN32 && defined DEBUGGINGAIDS struct sigaction sigact, oldact; memset(&sigact, 0, sizeof(sigact)); sigact.sa_sigaction = (void *)sighandler; sigact.sa_flags = SA_SIGINFO; sigaction(SIGFPE, &sigact, &oldact); #endif if (!preinitcalled) { i = preinitengine(); if (i) return i; } if (loadtables()) return 1; xyaspect = -1; pskyoff[0] = 0; pskybits = 0; parallaxtype = 2; parallaxyoffs = 0L; parallaxyscale = 65536; showinvisibility = 0; #ifdef SUPERBUILD for (i=1;i<1024;i++) lowrecip[i] = ((1<<24)-1)/i; for (i=0;i>2,65536L); #endif #ifdef POLYMOST polymost_initosdfuncs(); #endif paletteloaded = 0; searchit = 0; searchstat = -1; for (i=0;i>5),0L); clearbuf(&show2dsprite[0],(long)((MAXSPRITES+3)>>5),0L); clearbuf(&show2dwall[0],(long)((MAXWALLS+3)>>5),0L); automapping = 0; pointhighlight = -1; linehighlight = -1; highlightcnt = 0; totalclock = 0; visibility = 512; parallaxvisibility = 512; captureformat = 0; loadpalette(); #if defined(POLYMOST) && defined(USE_OPENGL) if (!hicfirstinit) hicinit(); if (!mdinited) mdinit(); #endif return 0; } // // uninitengine // void uninitengine(void) { long i; //OSD_Printf("cacheresets = %d, cacheinvalidates = %d\n", cacheresets, cacheinvalidates); #if defined(POLYMOST) && defined(USE_OPENGL) polymost_glreset(); hicinit(); freeallmodels(); #endif uninitsystem(); if (artfil != -1) kclose(artfil); if (transluc != NULL) { kkfree(transluc); transluc = NULL; } if (pic != NULL) { kkfree(pic); pic = NULL; } if (lookups != NULL) { if (lookupsalloctype == 0) kkfree((void *)lookups); //if (lookupsalloctype == 1) suckcache(lookups); //Cache already gone lookups = NULL; } for (i=0;i>1); globaluclip = (0-globalhoriz)*xdimscale; globaldclip = (ydimen-globalhoriz)*xdimscale; i = mulscale16(xdimenscale,viewingrangerecip); globalpisibility = mulscale16(parallaxvisibility,i); globalvisibility = mulscale16(visibility,i); globalhisibility = mulscale16(globalvisibility,xyaspect); globalcisibility = mulscale8(globalhisibility,320); globalcursectnum = dacursectnum; totalclocklock = totalclock; cosglobalang = sintable[(globalang+512)&2047]; singlobalang = sintable[globalang&2047]; cosviewingrangeglobalang = mulscale16(cosglobalang,viewingrange); sinviewingrangeglobalang = mulscale16(singlobalang,viewingrange); if ((xyaspect != oxyaspect) || (xdimen != oxdimen) || (viewingrange != oviewingrange)) dosetaspect(); //clearbufbyte(&gotsector[0],(long)((numsectors+7)>>3),0L); Bmemset(&gotsector[0],0,(long)((numsectors+7)>>3)); shortptr1 = (short *)&startumost[windowx1]; shortptr2 = (short *)&startdmost[windowx1]; i = xdimen-1; do { umost[i] = shortptr1[i]-windowy1; dmost[i] = shortptr2[i]-windowy1; i--; } while (i != 0); umost[0] = shortptr1[0]-windowy1; dmost[0] = shortptr2[0]-windowy1; #ifdef POLYMOST if (rendmode == 4) { polymer_glinit(); polymer_drawrooms(daposx, daposy, daposz, daang, dahoriz, dacursectnum, 1); bglDisable(GL_CULL_FACE); return; } //============================================================================= //POLYMOST BEGINS polymost_drawrooms(); if (rendmode) return; #endif //============================================================================= //POLYMOST ENDS begindrawing(); //{{{ //frameoffset = frameplace + viewoffset; frameoffset = frameplace + windowy1*bytesperline + windowx1; //if (smostwallcnt < 0) // if (getkensmessagecrc(FP_OFF(kensmessage)) != 0x56c764d4) // { /* setvmode(0x3);*/ printOSD("Nice try.\n"); exit(0); } numhits = xdimen; numscans = 0; numbunches = 0; maskwallcnt = 0; smostwallcnt = 0; smostcnt = 0; spritesortcnt = 0; if (globalcursectnum >= MAXSECTORS) globalcursectnum -= MAXSECTORS; else { i = globalcursectnum; updatesector(globalposx,globalposy,&globalcursectnum); if (globalcursectnum < 0) globalcursectnum = i; } globparaceilclip = 1; globparaflorclip = 1; getzsofslope(globalcursectnum,globalposx,globalposy,&cz,&fz); if (globalposz < cz) globparaceilclip = 0; if (globalposz > fz) globparaflorclip = 0; scansector(globalcursectnum); if (inpreparemirror) { inpreparemirror = 0; mirrorsx1 = xdimen-1; mirrorsx2 = 0; for (i=numscans-1;i>=0;i--) { if (wall[thewall[i]].nextsector < 0) continue; if (xb1[i] < mirrorsx1) mirrorsx1 = xb1[i]; if (xb2[i] > mirrorsx2) mirrorsx2 = xb2[i]; } for (i=0;i 0) && (numhits > 0)) { clearbuf(&tempbuf[0],(long)((numbunches+3)>>2),0L); tempbuf[0] = 1; closest = 0; //Almost works, but not quite :( for (i=1;i=0;z=p2[z]) show2dwall[thewall[z]>>3] |= pow2char[thewall[z]&7]; } numbunches--; bunchfirst[closest] = bunchfirst[numbunches]; bunchlast[closest] = bunchlast[numbunches]; } enddrawing(); //}}} } // UTILITY TYPES AND FUNCTIONS FOR DRAWMASKS OCCLUSION TREE typedef struct s_maskleaf { long index; _point2d p1, p2; _equation maskeq, p1eq, p2eq; struct s_maskleaf* branch[MAXWALLSB]; int drawing; } _maskleaf; _maskleaf maskleaves[MAXWALLSB]; // returns equation of a line given two points _equation equation(long x1, long y1, long x2, long y2) { _equation ret; if ((x2 - x1) != 0) { ret.a = (float)(y2 - y1)/(float)(x2 - x1); ret.b = -1; ret.c = (y1 - (ret.a * x1)); } else // vertical { ret.a = 1; ret.b = 0; ret.c = -x1; } return (ret); } // returns the intersection point between two lines _point2d intersection(_equation eq1, _equation eq2) { _point2d ret; float det; det = (float)(1) / (eq1.a*eq2.b - eq2.a*eq1.b); ret.x = ((eq1.b*eq2.c - eq2.b*eq1.c) * det); ret.y = ((eq2.a*eq1.c - eq1.a*eq2.c) * det); return (ret); } // check if a point that's on the line is within the segment boundaries int pointonmask(_point2d point, _maskleaf* wall) { if ((min(wall->p1.x, wall->p2.x) <= point.x) && (point.x <= max(wall->p1.x, wall->p2.x)) && (min(wall->p1.y, wall->p2.y) <= point.y) && (point.y <= max(wall->p1.y, wall->p2.y))) return (1); return (0); } // returns 1 if wall2 is hidden by wall1 int wallobstructswall(_maskleaf* wall1, _maskleaf* wall2) { _point2d cross; cross = intersection(wall2->p1eq, wall1->maskeq); if (pointonmask(cross, wall1)) return (1); cross = intersection(wall2->p2eq, wall1->maskeq); if (pointonmask(cross, wall1)) return (1); cross = intersection(wall1->p1eq, wall2->maskeq); if (pointonmask(cross, wall2)) return (1); cross = intersection(wall1->p2eq, wall2->maskeq); if (pointonmask(cross, wall2)) return (1); return (0); } // recursive mask drawing function void drawmaskleaf(_maskleaf* wall) { int i; wall->drawing = 1; i = 0; while (wall->branch[i] != NULL) { if (wall->branch[i]->drawing == 0) { //OSD_Printf("Drawing parent of %i : mask %i\n", wall->index, wall->branch[i]->index); drawmaskleaf(wall->branch[i]); } i++; } //OSD_Printf("Drawing mask %i\n", wall->index); drawmaskwall(wall->index); } int sameside(_equation* eq, _point2d* p1, _point2d* p2) { float sign1, sign2; sign1 = eq->a * p1->x + eq->b * p1->y + eq->c; sign2 = eq->a * p2->x + eq->b * p2->y + eq->c; sign1 = sign1 * sign2; if (sign1 > 0) { //OSD_Printf("SAME SIDE !\n"); return (1); } //OSD_Printf("OPPOSITE SIDE !\n"); return (0); } #ifdef USE_OPENGL void drawpeel(int peel) { bglBindTexture(GL_TEXTURE_RECTANGLE, peels[peel]); bglBegin(GL_QUADS); bglTexCoord2f(0.0f, 0.0f); bglVertex2f(-1.0f, -1.0f); bglTexCoord2f(xdim, 0.0f); bglVertex2f(1.0f, -1.0f); bglTexCoord2f(xdim, ydim); bglVertex2f(1.0f, 1.0f); bglTexCoord2f(0.0f, ydim); bglVertex2f(-1.0f, 1.0f); bglEnd(); } #endif // // drawmasks // void drawmasks(void) { long i, j, k, l, m, gap, xs, ys, xp, yp, yoff, yspan; // PLAG: sorting stuff _equation maskeq, p1eq, p2eq; _point2d dot, dot2, middle, pos, spr; for (i=spritesortcnt-1;i>=0;i--) tspriteptr[i] = &tsprite[i]; for (i=spritesortcnt-1;i>=0;i--) { xs = tspriteptr[i]->x-globalposx; ys = tspriteptr[i]->y-globalposy; yp = dmulscale6(xs,cosviewingrangeglobalang,ys,sinviewingrangeglobalang); if (yp > (4<<8)) { xp = dmulscale6(ys,cosglobalang,-xs,singlobalang); if (mulscale24(labs(xp+yp),xdimen) >= yp) goto killsprite; spritesx[i] = scale(xp+yp,xdimen<<7,yp); } else if ((tspriteptr[i]->cstat&48) == 0) { killsprite: spritesortcnt--; //Delete face sprite if on wrong side! if (i != spritesortcnt) { tspriteptr[i] = tspriteptr[spritesortcnt]; spritesx[i] = spritesx[spritesortcnt]; spritesy[i] = spritesy[spritesortcnt]; } continue; } spritesy[i] = yp; } #ifdef USE_OPENGL if ((!r_depthpeeling) || (rendmode < 3)) #endif { gap = 1; while (gap < spritesortcnt) gap = (gap<<1)+1; for (gap>>=1;gap>0;gap>>=1) //Sort sprite list for (i=0;i=0;l-=gap) { if (spritesy[l] <= spritesy[l+gap]) break; swaplong(&tspriteptr[l],&tspriteptr[l+gap]); swaplong(&spritesx[l],&spritesx[l+gap]); swaplong(&spritesy[l],&spritesy[l+gap]); } if (spritesortcnt > 0) spritesy[spritesortcnt] = (spritesy[spritesortcnt-1]^1); ys = spritesy[0]; i = 0; for (j=1;j<=spritesortcnt;j++) { if (spritesy[j] == ys) continue; ys = spritesy[j]; if (j > i+1) { for (k=i;kz; if ((tspriteptr[k]->cstat&48) != 32) { yoff = (long)((signed char)((picanm[tspriteptr[k]->picnum]>>16)&255))+((long)tspriteptr[k]->yoffset); spritesz[k] -= ((yoff*tspriteptr[k]->yrepeat)<<2); yspan = (tilesizy[tspriteptr[k]->picnum]*tspriteptr[k]->yrepeat<<2); if (!(tspriteptr[k]->cstat&128)) spritesz[k] -= (yspan>>1); if (klabs(spritesz[k]-globalposz) < (yspan>>1)) spritesz[k] = globalposz; } } for (k=i+1;kstatnum < tspriteptr[l]->statnum) { swaplong(&tspriteptr[k],&tspriteptr[l]); swaplong(&spritesx[k],&spritesx[l]); swaplong(&spritesy[k],&spritesy[l]); } } i = j; } } begindrawing(); //{{{ /*for(i=spritesortcnt-1;i>=0;i--) { xs = tspriteptr[i].x-globalposx; ys = tspriteptr[i].y-globalposy; zs = tspriteptr[i].z-globalposz; xp = ys*cosglobalang-xs*singlobalang; yp = (zs<<1); zp = xs*cosglobalang+ys*singlobalang; xs = scale(xp,halfxdimen<<12,zp)+((halfxdimen+windowx1)<<12); ys = scale(yp,xdimenscale<<12,zp)+((globalhoriz+windowy1)<<12); drawline256(xs-65536,ys-65536,xs+65536,ys+65536,31); drawline256(xs+65536,ys-65536,xs-65536,ys+65536,31); }*/ #ifdef USE_OPENGL if ((!r_depthpeeling) || (rendmode < 3)) #endif { curpolygonoffset = 0; pos.x = globalposx; pos.y = globalposy; while (maskwallcnt) { maskwallcnt--; dot.x = wall[thewall[maskwall[maskwallcnt]]].x; dot.y = wall[thewall[maskwall[maskwallcnt]]].y; dot2.x = wall[wall[thewall[maskwall[maskwallcnt]]].point2].x; dot2.y = wall[wall[thewall[maskwall[maskwallcnt]]].point2].y; maskeq = equation(dot.x, dot.y, dot2.x, dot2.y); p1eq = equation(pos.x, pos.y, dot.x, dot.y); p2eq = equation(pos.x, pos.y, dot2.x, dot2.y); middle.x = (dot.x + dot2.x) / 2; middle.y = (dot.y + dot2.y) / 2; i = spritesortcnt; while (i) { i--; if (tspriteptr[i] != NULL) { spr.x = tspriteptr[i]->x; spr.y = tspriteptr[i]->y; if ((sameside(&maskeq, &spr, &pos) == 0) && sameside(&p1eq, &middle, &spr) && sameside(&p2eq, &middle, &spr)) { drawsprite(i); tspriteptr[i] = NULL; } } } drawmaskwall(maskwallcnt); } while (spritesortcnt) { spritesortcnt--; if (tspriteptr[spritesortcnt] != NULL) drawsprite(spritesortcnt); } } /* depthpeeling */ #ifdef USE_OPENGL else { curpolygonoffset = 0; j = spritesortcnt; k = maskwallcnt; while (j > 0) drawsprite(--j); while (k > 0) drawmaskwall(--k); } #endif #ifdef USE_OPENGL if ((r_depthpeeling) && (rendmode >= 3)) { bglPopAttrib(); bglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); bglNewList(1, GL_COMPILE); peelcompiling = 1; curpolygonoffset = 0; while (spritesortcnt > 0) drawsprite(--spritesortcnt); while (maskwallcnt > 0) drawmaskwall(--maskwallcnt); peelcompiling = 0; bglEndList(); bglDisable(GL_BLEND); bglEnable(GL_ALPHA_TEST); bglAlphaFunc(GL_GREATER, 0.0f); bglEnable(GL_FRAGMENT_PROGRAM_ARB); i = 0; while (i < r_peelscount) { if (i > 0) { bglBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, peelprogram[1]); bglActiveTextureARB(GL_TEXTURE1_ARB); bglBindTexture(GL_TEXTURE_RECTANGLE, ztexture[(i - 1) % 2]); bglActiveTextureARB(GL_TEXTURE2_ARB); bglBindTexture(GL_TEXTURE_RECTANGLE, ztexture[2]); bglActiveTextureARB(GL_TEXTURE0_ARB); } else { bglBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, peelprogram[0]); bglActiveTextureARB(GL_TEXTURE1_ARB); bglBindTexture(GL_TEXTURE_RECTANGLE, ztexture[2]); bglActiveTextureARB(GL_TEXTURE0_ARB); } if (i == (r_peelscount - 1)) bglEnable(GL_BLEND); bglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, peelfbos[i]); bglPushAttrib(GL_VIEWPORT_BIT); bglViewport(0, 0, xdim, ydim); bglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); bglCallList(1); bglPopAttrib(); bglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); i++; } bglDisable(GL_FRAGMENT_PROGRAM_ARB); bglEnable(GL_BLEND); bglDisable(GL_DEPTH_TEST); bglColor4f(1.0f, 1.0f, 1.0f, 1.0f); // identity for screen aligned quads bglMatrixMode(GL_PROJECTION); bglPushMatrix(); bglLoadIdentity(); bglMatrixMode(GL_MODELVIEW); bglPushMatrix(); bglLoadIdentity(); bglEnable(GL_TEXTURE_RECTANGLE); // backbuffer drawpeel(r_peelscount); if (r_curpeel == -1) { i = r_peelscount - 1; while (i >= 0) drawpeel(i--); } else drawpeel(r_curpeel); bglDisable(GL_TEXTURE_RECTANGLE); bglEnable(GL_TEXTURE_2D); // restore the polymost projection bglMatrixMode(GL_PROJECTION); bglPopMatrix(); bglMatrixMode(GL_MODELVIEW); bglPopMatrix(); bglEnable(GL_DEPTH_TEST); bglDeleteLists(1, 1); } #endif indrawroomsandmasks = 0; enddrawing(); //}}} } // // drawmapview // void drawmapview(long dax, long day, long zoome, short ang) { walltype *wal; sectortype *sec; spritetype *spr; long tilenum, xoff, yoff, i, j, k, l, cosang, sinang, xspan, yspan; long xrepeat, yrepeat, x, y, x1, y1, x2, y2, x3, y3, x4, y4, bakx1, baky1; long s, w, ox, oy, startwall, cx1, cy1, cx2, cy2; long bakgxvect, bakgyvect, sortnum, gap, npoints; long xvect, yvect, xvect2, yvect2, daslope; beforedrawrooms = 0; clearbuf(&gotsector[0],(long)((numsectors+31)>>5),0L); cx1 = (windowx1<<12); cy1 = (windowy1<<12); cx2 = ((windowx2+1)<<12)-1; cy2 = ((windowy2+1)<<12)-1; zoome <<= 8; bakgxvect = divscale28(sintable[(1536-ang)&2047],zoome); bakgyvect = divscale28(sintable[(2048-ang)&2047],zoome); xvect = mulscale8(sintable[(2048-ang)&2047],zoome); yvect = mulscale8(sintable[(1536-ang)&2047],zoome); xvect2 = mulscale16(xvect,yxaspect); yvect2 = mulscale16(yvect,yxaspect); sortnum = 0; begindrawing(); //{{{ for (s=0,sec=§or[s];s>3]&pow2char[s&7]) { npoints = 0; i = 0; startwall = sec->wallptr; #if 0 for (w=sec->wallnum,wal=&wall[startwall];w>0;w--,wal++) { ox = wal->x - dax; oy = wal->y - day; x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11); y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11); i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y); rx1[npoints] = x; ry1[npoints] = y; xb1[npoints] = wal->point2 - startwall; npoints++; } #else j = startwall; l = 0; for (w=sec->wallnum,wal=&wall[startwall];w>0;w--,wal++,j++) { k = lastwall(j); if ((k > j) && (npoints > 0)) { xb1[npoints-1] = l; l = npoints; } //overwrite point2 //wall[k].x wal->x wall[wal->point2].x //wall[k].y wal->y wall[wal->point2].y if (!dmulscale1(wal->x-wall[k].x,wall[wal->point2].y-wal->y,-(wal->y-wall[k].y),wall[wal->point2].x-wal->x)) continue; ox = wal->x - dax; oy = wal->y - day; x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11); y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11); i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y); rx1[npoints] = x; ry1[npoints] = y; xb1[npoints] = npoints+1; npoints++; } if (npoints > 0) xb1[npoints-1] = l; //overwrite point2 #endif if ((i&0xf0) != 0xf0) continue; bakx1 = rx1[0]; baky1 = mulscale16(ry1[0]-(ydim<<11),xyaspect)+(ydim<<11); if (i&0x0f) { npoints = clippoly(npoints,i); if (npoints < 3) continue; } //Collect floor sprites to draw for (i=headspritesect[s];i>=0;i=nextspritesect[i]) if ((sprite[i].cstat&48) == 32) { if ((sprite[i].cstat&(64+8)) == (64+8)) continue; tsprite[sortnum++].owner = i; } gotsector[s>>3] |= pow2char[s&7]; globalorientation = (long)sec->floorstat; if ((globalorientation&1) != 0) continue; globalpal = sec->floorpal; if (palookup[sec->floorpal] != globalpalwritten) { globalpalwritten = palookup[sec->floorpal]; if (!globalpalwritten) globalpalwritten = palookup[0]; // JBF: fixes null-pointer crash setpalookupaddress(globalpalwritten); } globalpicnum = sec->floorpicnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; setgotpic(globalpicnum); if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) continue; if ((picanm[globalpicnum]&192) != 0) globalpicnum += animateoffs((short)globalpicnum,s); if (waloff[globalpicnum] == 0) loadtile(globalpicnum); globalbufplc = waloff[globalpicnum]; globalshade = max(min(sec->floorshade,numpalookups-1),0); globvis = globalhisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalpolytype = 0; if ((globalorientation&64) == 0) { globalposx = dax; globalx1 = bakgxvect; globaly1 = bakgyvect; globalposy = day; globalx2 = bakgxvect; globaly2 = bakgyvect; } else { ox = wall[wall[startwall].point2].x - wall[startwall].x; oy = wall[wall[startwall].point2].y - wall[startwall].y; i = nsqrtasm(ox*ox+oy*oy); if (i == 0) continue; i = 1048576/i; globalx1 = mulscale10(dmulscale10(ox,bakgxvect,oy,bakgyvect),i); globaly1 = mulscale10(dmulscale10(ox,bakgyvect,-oy,bakgxvect),i); ox = (bakx1>>4)-(xdim<<7); oy = (baky1>>4)-(ydim<<7); globalposx = dmulscale28(-oy,globalx1,-ox,globaly1); globalposy = dmulscale28(-ox,globalx1,oy,globaly1); globalx2 = -globalx1; globaly2 = -globaly1; daslope = sector[s].floorheinum; i = nsqrtasm(daslope*daslope+16777216); globalposy = mulscale12(globalposy,i); globalx2 = mulscale12(globalx2,i); globaly2 = mulscale12(globaly2,i); } globalxshift = (8-(picsiz[globalpicnum]&15)); globalyshift = (8-(picsiz[globalpicnum]>>4)); if (globalorientation&8) {globalxshift++; globalyshift++; } sethlinesizes(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4,globalbufplc); if ((globalorientation&0x4) > 0) { i = globalposx; globalposx = -globalposy; globalposy = -i; i = globalx2; globalx2 = globaly1; globaly1 = i; i = globalx1; globalx1 = -globaly2; globaly2 = -i; } if ((globalorientation&0x10) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalposx = -globalposx; if ((globalorientation&0x20) > 0) globalx2 = -globalx2, globaly2 = -globaly2, globalposy = -globalposy; asm1 = (globaly1<floorxpanning)<<24); globalposy = (globalposy<<(20+globalyshift))-(((long)sec->floorypanning)<<24); fillpolygon(npoints); } //Sort sprite list gap = 1; while (gap < sortnum) gap = (gap<<1)+1; for (gap>>=1;gap>0;gap>>=1) for (i=0;i=0;j-=gap) { if (sprite[tsprite[j].owner].z <= sprite[tsprite[j+gap].owner].z) break; swapshort(&tsprite[j].owner,&tsprite[j+gap].owner); } for (s=sortnum-1;s>=0;s--) { spr = &sprite[tsprite[s].owner]; if ((spr->cstat&48) == 32) { npoints = 0; tilenum = spr->picnum; xoff = (long)((signed char)((picanm[tilenum]>>8)&255))+((long)spr->xoffset); yoff = (long)((signed char)((picanm[tilenum]>>16)&255))+((long)spr->yoffset); if ((spr->cstat&4) > 0) xoff = -xoff; if ((spr->cstat&8) > 0) yoff = -yoff; k = spr->ang; cosang = sintable[(k+512)&2047]; sinang = sintable[k]; xspan = tilesizx[tilenum]; xrepeat = spr->xrepeat; yspan = tilesizy[tilenum]; yrepeat = spr->yrepeat; ox = ((xspan>>1)+xoff)*xrepeat; oy = ((yspan>>1)+yoff)*yrepeat; x1 = spr->x + mulscale(sinang,ox,16) + mulscale(cosang,oy,16); y1 = spr->y + mulscale(sinang,oy,16) - mulscale(cosang,ox,16); l = xspan*xrepeat; x2 = x1 - mulscale(sinang,l,16); y2 = y1 + mulscale(cosang,l,16); l = yspan*yrepeat; k = -mulscale(cosang,l,16); x3 = x2+k; x4 = x1+k; k = -mulscale(sinang,l,16); y3 = y2+k; y4 = y1+k; xb1[0] = 1; xb1[1] = 2; xb1[2] = 3; xb1[3] = 0; npoints = 4; i = 0; ox = x1 - dax; oy = y1 - day; x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11); y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11); i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y); rx1[0] = x; ry1[0] = y; ox = x2 - dax; oy = y2 - day; x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11); y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11); i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y); rx1[1] = x; ry1[1] = y; ox = x3 - dax; oy = y3 - day; x = dmulscale16(ox,xvect,-oy,yvect) + (xdim<<11); y = dmulscale16(oy,xvect2,ox,yvect2) + (ydim<<11); i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y); rx1[2] = x; ry1[2] = y; x = rx1[0]+rx1[2]-rx1[1]; y = ry1[0]+ry1[2]-ry1[1]; i |= getclipmask(x-cx1,cx2-x,y-cy1,cy2-y); rx1[3] = x; ry1[3] = y; if ((i&0xf0) != 0xf0) continue; bakx1 = rx1[0]; baky1 = mulscale16(ry1[0]-(ydim<<11),xyaspect)+(ydim<<11); if (i&0x0f) { npoints = clippoly(npoints,i); if (npoints < 3) continue; } globalpicnum = spr->picnum; if ((unsigned)globalpicnum >= (unsigned)MAXTILES) globalpicnum = 0; setgotpic(globalpicnum); if ((tilesizx[globalpicnum] <= 0) || (tilesizy[globalpicnum] <= 0)) continue; if ((picanm[globalpicnum]&192) != 0) globalpicnum += animateoffs((short)globalpicnum,s); if (waloff[globalpicnum] == 0) loadtile(globalpicnum); globalbufplc = waloff[globalpicnum]; if ((sector[spr->sectnum].ceilingstat&1) > 0) globalshade = ((long)sector[spr->sectnum].ceilingshade); else globalshade = ((long)sector[spr->sectnum].floorshade); globalshade = max(min(globalshade+spr->shade+6,numpalookups-1),0); asm3 = FP_OFF(palookup[spr->pal]+(globalshade<<8)); globvis = globalhisibility; if (sec->visibility != 0) globvis = mulscale4(globvis,(long)((unsigned char)(sec->visibility+16))); globalpolytype = ((spr->cstat&2)>>1)+1; //relative alignment stuff ox = x2-x1; oy = y2-y1; i = ox*ox+oy*oy; if (i == 0) continue; i = (65536*16384)/i; globalx1 = mulscale10(dmulscale10(ox,bakgxvect,oy,bakgyvect),i); globaly1 = mulscale10(dmulscale10(ox,bakgyvect,-oy,bakgxvect),i); ox = y1-y4; oy = x4-x1; i = ox*ox+oy*oy; if (i == 0) continue; i = (65536*16384)/i; globalx2 = mulscale10(dmulscale10(ox,bakgxvect,oy,bakgyvect),i); globaly2 = mulscale10(dmulscale10(ox,bakgyvect,-oy,bakgxvect),i); ox = picsiz[globalpicnum]; oy = ((ox>>4)&15); ox &= 15; if (pow2long[ox] != xspan) { ox++; globalx1 = mulscale(globalx1,xspan,ox); globaly1 = mulscale(globaly1,xspan,ox); } bakx1 = (bakx1>>4)-(xdim<<7); baky1 = (baky1>>4)-(ydim<<7); globalposx = dmulscale28(-baky1,globalx1,-bakx1,globaly1); globalposy = dmulscale28(bakx1,globalx2,-baky1,globaly2); if ((spr->cstat&2) == 0) msethlineshift(ox,oy); else { if (spr->cstat&512) settransreverse(); else settransnormal(); tsethlineshift(ox,oy); } if ((spr->cstat&0x4) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalposx = -globalposx; asm1 = (globaly1<<2); globalx1 <<= 2; globalposx <<= (20+2); asm2 = (globalx2<<2); globaly2 <<= 2; globalposy <<= (20+2); globalorientation = ((spr->cstat&2)<<7) | ((spr->cstat&512)>>2); // so polymost can get the translucency. ignored in software mode. fillpolygon(npoints); } } enddrawing(); //}}} } // // loadboard // long loadboard(char *filename, char fromwhere, long *daposx, long *daposy, long *daposz, short *daang, short *dacursectnum) { short fil, i, numsprites; i = strlen(filename)-1; if (filename[i] == 255) { filename[i] = 0; fromwhere = 1; } // JBF 20040119: "compatibility" if ((fil = kopen4load(filename,fromwhere)) == -1) { mapversion = 7L; return(-1); } kread(fil,&mapversion,4); mapversion = B_LITTLE32(mapversion); if (mapversion != 7L && mapversion != 8L) { kclose(fil); return(-2); } /* // Enable this for doing map checksum tests clearbufbyte(&wall, sizeof(wall), 0); clearbufbyte(§or, sizeof(sector), 0); clearbufbyte(&sprite, sizeof(sprite), 0); */ initspritelists(); #define MYMAXSECTORS (mapversion==7l?MAXSECTORSV7:MAXSECTORSV8) #define MYMAXWALLS (mapversion==7l?MAXWALLSV7:MAXWALLSV8) #define MYMAXSPRITES (mapversion==7l?MAXSPRITESV7:MAXSPRITESV8) clearbuf(&show2dsector[0],(long)((MYMAXSECTORS+3)>>5),0L); clearbuf(&show2dsprite[0],(long)((MYMAXSPRITES+3)>>5),0L); clearbuf(&show2dwall[0],(long)((MYMAXWALLS+3)>>5),0L); kread(fil,daposx,4); *daposx = B_LITTLE32(*daposx); kread(fil,daposy,4); *daposy = B_LITTLE32(*daposy); kread(fil,daposz,4); *daposz = B_LITTLE32(*daposz); kread(fil,daang,2); *daang = B_LITTLE16(*daang); kread(fil,dacursectnum,2); *dacursectnum = B_LITTLE16(*dacursectnum); kread(fil,&numsectors,2); numsectors = B_LITTLE16(numsectors); if (numsectors > MYMAXSECTORS) { kclose(fil); return(-1); } kread(fil,§or[0],sizeof(sectortype)*numsectors); for (i=numsectors-1; i>=0; i--) { sector[i].wallptr = B_LITTLE16(sector[i].wallptr); sector[i].wallnum = B_LITTLE16(sector[i].wallnum); sector[i].ceilingz = B_LITTLE32(sector[i].ceilingz); sector[i].floorz = B_LITTLE32(sector[i].floorz); sector[i].ceilingstat = B_LITTLE16(sector[i].ceilingstat); sector[i].floorstat = B_LITTLE16(sector[i].floorstat); sector[i].ceilingpicnum = B_LITTLE16(sector[i].ceilingpicnum); sector[i].ceilingheinum = B_LITTLE16(sector[i].ceilingheinum); sector[i].floorpicnum = B_LITTLE16(sector[i].floorpicnum); sector[i].floorheinum = B_LITTLE16(sector[i].floorheinum); sector[i].lotag = B_LITTLE16(sector[i].lotag); sector[i].hitag = B_LITTLE16(sector[i].hitag); sector[i].extra = B_LITTLE16(sector[i].extra); } kread(fil,&numwalls,2); numwalls = B_LITTLE16(numwalls); if (numwalls > MYMAXWALLS) { kclose(fil); return(-1); } kread(fil,&wall[0],sizeof(walltype)*numwalls); for (i=numwalls-1; i>=0; i--) { wall[i].x = B_LITTLE32(wall[i].x); wall[i].y = B_LITTLE32(wall[i].y); wall[i].point2 = B_LITTLE16(wall[i].point2); wall[i].nextwall = B_LITTLE16(wall[i].nextwall); wall[i].nextsector = B_LITTLE16(wall[i].nextsector); wall[i].cstat = B_LITTLE16(wall[i].cstat); wall[i].picnum = B_LITTLE16(wall[i].picnum); wall[i].overpicnum = B_LITTLE16(wall[i].overpicnum); wall[i].lotag = B_LITTLE16(wall[i].lotag); wall[i].hitag = B_LITTLE16(wall[i].hitag); wall[i].extra = B_LITTLE16(wall[i].extra); } kread(fil,&numsprites,2); numsprites = B_LITTLE16(numsprites); if (numsprites > MYMAXSPRITES) { kclose(fil); return(-1); } kread(fil,&sprite[0],sizeof(spritetype)*numsprites); for (i=numsprites-1; i>=0; i--) { sprite[i].x = B_LITTLE32(sprite[i].x); sprite[i].y = B_LITTLE32(sprite[i].y); sprite[i].z = B_LITTLE32(sprite[i].z); sprite[i].cstat = B_LITTLE16(sprite[i].cstat); sprite[i].picnum = B_LITTLE16(sprite[i].picnum); sprite[i].sectnum = B_LITTLE16(sprite[i].sectnum); sprite[i].statnum = B_LITTLE16(sprite[i].statnum); sprite[i].ang = B_LITTLE16(sprite[i].ang); sprite[i].owner = B_LITTLE16(sprite[i].owner); sprite[i].xvel = B_LITTLE16(sprite[i].xvel); sprite[i].yvel = B_LITTLE16(sprite[i].yvel); sprite[i].zvel = B_LITTLE16(sprite[i].zvel); sprite[i].lotag = B_LITTLE16(sprite[i].lotag); sprite[i].hitag = B_LITTLE16(sprite[i].hitag); sprite[i].extra = B_LITTLE16(sprite[i].extra); } for (i=0;i= startwall) && (theline <= endwall)) { sucksect = i; break; } } return(sucksect); } static void convertv5sectv6(struct sectortypev5 *from, struct sectortypev6 *to) { to->wallptr = from->wallptr; to->wallnum = from->wallnum; to->ceilingpicnum = from->ceilingpicnum; to->floorpicnum = from->floorpicnum; to->ceilingheinum = from->ceilingheinum; to->floorheinum = from->floorheinum; to->ceilingz = from->ceilingz; to->floorz = from->floorz; to->ceilingshade = from->ceilingshade; to->floorshade = from->floorshade; to->ceilingxpanning = from->ceilingxpanning; to->floorxpanning = from->floorxpanning; to->ceilingypanning = from->ceilingypanning; to->floorypanning = from->floorypanning; to->ceilingstat = from->ceilingstat; to->floorstat = from->floorstat; to->ceilingpal = from->ceilingpal; to->floorpal = from->floorpal; to->visibility = from->visibility; to->lotag = from->lotag; to->hitag = from->hitag; to->extra = from->extra; } static void convertv5wallv6(struct walltypev5 *from, struct walltypev6 *to, long i) { to->x = from->x; to->y = from->y; to->point2 = from->point2; to->nextsector = from->nextsector1; to->nextwall = from->nextwall1; to->picnum = from->picnum; to->overpicnum = from->overpicnum; to->shade = from->shade; to->pal = sector[sectorofwallv5((short)i)].floorpal; to->cstat = from->cstat; to->xrepeat = from->xrepeat; to->yrepeat = from->yrepeat; to->xpanning = from->xpanning; to->ypanning = from->ypanning; to->lotag = from->lotag; to->hitag = from->hitag; to->extra = from->extra; } static void convertv5sprv6(struct spritetypev5 *from, struct spritetypev6 *to) { short j; to->x = from->x; to->y = from->y; to->z = from->z; to->cstat = from->cstat; to->shade = from->shade; j = from->sectnum; if ((sector[j].ceilingstat&1) > 0) to->pal = sector[j].ceilingpal; else to->pal = sector[j].floorpal; to->clipdist = 32; to->xrepeat = from->xrepeat; to->yrepeat = from->yrepeat; to->xoffset = 0; to->yoffset = 0; to->picnum = from->picnum; to->ang = from->ang; to->xvel = from->xvel; to->yvel = from->yvel; to->zvel = from->zvel; to->owner = from->owner; to->sectnum = from->sectnum; to->statnum = from->statnum; to->lotag = from->lotag; to->hitag = from->hitag; to->extra = from->extra; } static void convertv6sectv7(struct sectortypev6 *from, sectortype *to) { to->ceilingz = from->ceilingz; to->floorz = from->floorz; to->wallptr = from->wallptr; to->wallnum = from->wallnum; to->ceilingpicnum = from->ceilingpicnum; to->ceilingheinum = max(min(((long)from->ceilingheinum)<<5,32767),-32768); if ((from->ceilingstat&2) == 0) to->ceilingheinum = 0; to->ceilingshade = from->ceilingshade; to->ceilingpal = from->ceilingpal; to->ceilingxpanning = from->ceilingxpanning; to->ceilingypanning = from->ceilingypanning; to->floorpicnum = from->floorpicnum; to->floorheinum = max(min(((long)from->floorheinum)<<5,32767),-32768); if ((from->floorstat&2) == 0) to->floorheinum = 0; to->floorshade = from->floorshade; to->floorpal = from->floorpal; to->floorxpanning = from->floorxpanning; to->floorypanning = from->floorypanning; to->ceilingstat = from->ceilingstat; to->floorstat = from->floorstat; to->visibility = from->visibility; to->filler = 0; to->lotag = from->lotag; to->hitag = from->hitag; to->extra = from->extra; } static void convertv6wallv7(struct walltypev6 *from, walltype *to) { to->x = from->x; to->y = from->y; to->point2 = from->point2; to->nextwall = from->nextwall; to->nextsector = from->nextsector; to->cstat = from->cstat; to->picnum = from->picnum; to->overpicnum = from->overpicnum; to->shade = from->shade; to->pal = from->pal; to->xrepeat = from->xrepeat; to->yrepeat = from->yrepeat; to->xpanning = from->xpanning; to->ypanning = from->ypanning; to->lotag = from->lotag; to->hitag = from->hitag; to->extra = from->extra; } static void convertv6sprv7(struct spritetypev6 *from, spritetype *to) { to->x = from->x; to->y = from->y; to->z = from->z; to->cstat = from->cstat; to->picnum = from->picnum; to->shade = from->shade; to->pal = from->pal; to->clipdist = from->clipdist; to->filler = 0; to->xrepeat = from->xrepeat; to->yrepeat = from->yrepeat; to->xoffset = from->xoffset; to->yoffset = from->yoffset; to->sectnum = from->sectnum; to->statnum = from->statnum; to->ang = from->ang; to->owner = from->owner; to->xvel = from->xvel; to->yvel = from->yvel; to->zvel = from->zvel; to->lotag = from->lotag; to->hitag = from->hitag; to->extra = from->extra; } // Powerslave uses v6 // Witchaven 1 and TekWar use v5 long loadoldboard(char *filename, char fromwhere, long *daposx, long *daposy, long *daposz, short *daang, short *dacursectnum) { short fil, i, numsprites; struct sectortypev5 v5sect; struct walltypev5 v5wall; struct spritetypev5 v5spr; struct sectortypev6 v6sect; struct walltypev6 v6wall; struct spritetypev6 v6spr; i = strlen(filename)-1; if (filename[i] == 255) { filename[i] = 0; fromwhere = 1; } // JBF 20040119: "compatibility" if ((fil = kopen4load(filename,fromwhere)) == -1) { mapversion = 5L; return(-1); } kread(fil,&mapversion,4); mapversion = B_LITTLE32(mapversion); if (mapversion != 5L && mapversion != 6L) { kclose(fil); return(-2); } initspritelists(); clearbuf(&show2dsector[0],(long)((MAXSECTORS+3)>>5),0L); clearbuf(&show2dsprite[0],(long)((MAXSPRITES+3)>>5),0L); clearbuf(&show2dwall[0],(long)((MAXWALLS+3)>>5),0L); kread(fil,daposx,4); *daposx = B_LITTLE32(*daposx); kread(fil,daposy,4); *daposy = B_LITTLE32(*daposy); kread(fil,daposz,4); *daposz = B_LITTLE32(*daposz); kread(fil,daang,2); *daang = B_LITTLE16(*daang); kread(fil,dacursectnum,2); *dacursectnum = B_LITTLE16(*dacursectnum); kread(fil,&numsectors,2); numsectors = B_LITTLE16(numsectors); if (numsectors > MAXSECTORS) { kclose(fil); return(-1); } for (i=0; i MAXWALLS) { kclose(fil); return(-1); } for (i=0; i MAXSPRITES) { kclose(fil); return(-1); } for (i=0; iltextptr; switch (legaltokens[i].tokenid) { case T_SPRITE: // sprite if (scriptfile_getnumber(script, &whichsprite)) break; if ((unsigned)whichsprite >= (unsigned)MAXSPRITES) { // sprite number out of range initprintf("Sprite number out of range 0-%d on line %s:%d\n", MAXSPRITES-1,script->filename, scriptfile_getlinum(script,cmdtokptr)); whichsprite = -1; break; } break; case T_ANGOFF: // angoff { int ang; if (scriptfile_getnumber(script, &ang)) break; if (whichsprite < 0) { // no sprite directive preceeding initprintf("Ignoring angle offset directive because of absent/invalid sprite number on line %s:%d\n", script->filename, scriptfile_getlinum(script,cmdtokptr)); break; } spriteext[whichsprite].angoff = (short)ang; } break; case T_NOMODEL: // notmd if (whichsprite < 0) { // no sprite directive preceeding initprintf("Ignoring not-MD2/MD3 directive because of absent/invalid sprite number on line %s:%d\n", script->filename, scriptfile_getlinum(script,cmdtokptr)); break; } spriteext[whichsprite].flags |= SPREXT_NOTMD; break; case T_NOANIM: // nomdanim if (whichsprite < 0) { // no sprite directive preceeding initprintf("Ignoring no-MD2/MD3-anim directive because of absent/invalid sprite number on line %s:%d\n", script->filename, scriptfile_getlinum(script,cmdtokptr)); break; } spriteext[whichsprite].flags |= SPREXT_NOMDANIM; break; case T_PITCH: // pitch { int pitch; if (scriptfile_getnumber(script, &pitch)) break; if (whichsprite < 0) { // no sprite directive preceeding initprintf("Ignoring pitch directive because of absent/invalid sprite number on line %s:%d\n", script->filename, scriptfile_getlinum(script,cmdtokptr)); break; } spriteext[whichsprite].pitch = (short)pitch; } case T_ROLL: // roll { int roll; if (scriptfile_getnumber(script, &roll)) break; if (whichsprite < 0) { // no sprite directive preceeding initprintf("Ignoring roll directive because of absent/invalid sprite number on line %s:%d\n", script->filename, scriptfile_getlinum(script,cmdtokptr)); break; } spriteext[whichsprite].roll = (short)roll; } break; default: // unrecognised token break; } } scriptfile_close(script); return 0; } #else long loadmaphack(char *filename) { return -1; } #endif // // saveboard // long saveboard(char *filename, long *daposx, long *daposy, long *daposz, short *daang, short *dacursectnum) { short fil, i, j, numsprites, ts; long tl; sectortype tsect; walltype twall; spritetype tspri; if ((fil = Bopen(filename,BO_BINARY|BO_TRUNC|BO_CREAT|BO_WRONLY,BS_IREAD|BS_IWRITE)) == -1) return(-1); numsprites = 0; for (j=0;j MAXSECTORSV7 || numwalls > MAXWALLSV7 || numsprites > MAXSPRITESV7) mapversion = 8; else mapversion = 7; tl = B_LITTLE32(mapversion); Bwrite(fil,&tl,4); tl = B_LITTLE32(*daposx); Bwrite(fil,&tl,4); tl = B_LITTLE32(*daposy); Bwrite(fil,&tl,4); tl = B_LITTLE32(*daposz); Bwrite(fil,&tl,4); ts = B_LITTLE16(*daang); Bwrite(fil,&ts,2); ts = B_LITTLE16(*dacursectnum); Bwrite(fil,&ts,2); ts = B_LITTLE16(numsectors); Bwrite(fil,&ts,2); for (i=0; i 8) rendmode = 3; // GL renderer else if (dabpp == 8 && j > 8) rendmode = 0; // going from GL to software activates softpolymost #endif xdim = daxdim; ydim = daydim; j = ydim*4*sizeof(long); //Leave room for horizlookup&horizlookup2 if (lookups != NULL) { if (lookupsalloctype == 0) kkfree((void *)lookups); if (lookupsalloctype == 1) suckcache((long *)lookups); lookups = NULL; } lookupsalloctype = 0; if ((lookups = (long *)kkmalloc(j<<1)) == NULL) { allocache((long *)&lookups,j<<1,&permanentlock); lookupsalloctype = 1; } horizlookup = (long *)(lookups); horizlookup2 = (long *)(FP_OFF(lookups)+j); horizycent = ((ydim*4)>>1); //Force drawrooms to call dosetaspect & recalculate stuff oxyaspect = oxdimen = oviewingrange = -1; setvlinebpl(bytesperline); j = 0; for (i=0;i<=ydim;i++) ylookup[i] = j, j += bytesperline; setview(0L,0L,xdim-1,ydim-1); clearallviews(0L); setbrightness(curbrightness,&palette[0],0); if (searchx < 0) { searchx = halfxdimen; searchy = (ydimen>>1); } #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode == 3) { polymost_glreset(); polymost_glinit(); } if (rendmode == 4) polymer_glinit(); #endif qsetmode = 200; return(0); } // // nextpage // void nextpage(void) { long i; permfifotype *per; //char snotbuf[32]; //j = 0; k = 0; //for(i=0;i<4096;i++) // if (waloff[i] != 0) // { // sprintf(snotbuf,"%ld-%ld",i,tilesizx[i]*tilesizy[i]); // printext256((j>>5)*40+32,(j&31)*6,walock[i]>>3,-1,snotbuf,1); // k += tilesizx[i]*tilesizy[i]; // j++; // } //sprintf(snotbuf,"Total: %ld",k); //printext256((j>>5)*40+32,(j&31)*6,31,-1,snotbuf,1); switch (qsetmode) { case 200: begindrawing(); //{{{ for (i=permtail;i!=permhead;i=((i+1)&(MAXPERMS-1))) { per = &permfifo[i]; if ((per->pagesleft > 0) && (per->pagesleft <= numpages)) dorotatesprite(per->sx,per->sy,per->z,per->a,per->picnum, per->dashade,per->dapalnum,per->dastat, per->cx1,per->cy1,per->cx2,per->cy2,per->uniqid); } enddrawing(); //}}} OSD_Draw(); showframe(0); begindrawing(); //{{{ for (i=permtail;i!=permhead;i=((i+1)&(MAXPERMS-1))) { per = &permfifo[i]; if (per->pagesleft >= 130) dorotatesprite(per->sx,per->sy,per->z,per->a,per->picnum, per->dashade,per->dapalnum,per->dastat, per->cx1,per->cy1,per->cx2,per->cy2,per->uniqid); if (per->pagesleft&127) per->pagesleft--; if (((per->pagesleft&127) == 0) && (i == permtail)) permtail = ((permtail+1)&(MAXPERMS-1)); } enddrawing(); //}}} break; case 350: case 480: break; } faketimerhandler(); if ((totalclock >= lastageclock+8) || (totalclock < lastageclock)) { lastageclock = totalclock; agecache(); } #ifdef USE_OPENGL omdtims = mdtims; mdtims = getticks(); if (((unsigned long)(mdtims-omdtims)) > 10000) omdtims = mdtims; #endif beforedrawrooms = 1; numframes++; } // // loadpics // long loadpics(char *filename, long askedsize) { long offscount, localtilestart, localtileend, dasiz; short fil, i, j, k; Bstrcpy(artfilename,filename); for (i=0;i>5),0L); //try dpmi_DETERMINEMAXREALALLOC! //cachesize = min((long)((Bgetsysmemsize()/100)*60),max(artsize,askedsize)); if (Bgetsysmemsize() <= (unsigned long)askedsize) cachesize = (Bgetsysmemsize()/100)*60; else cachesize = askedsize; while ((pic = kkmalloc(cachesize)) == NULL) { cachesize -= 65536L; if (cachesize < 65536) return(-1); } initcache((FP_OFF(pic)+15)&0xfffffff0,(cachesize-((-FP_OFF(pic))&15))&0xfffffff0); for (i=0;i 1) && (pow2long[j] > tilesizx[i])) j--; picsiz[i] = ((char)j); j = 15; while ((j > 1) && (pow2long[j] > tilesizy[i])) j--; picsiz[i] += ((char)(j<<4)); } artfil = -1; artfilnum = -1; artfilplc = 0L; return(0); } // // loadtile // char cachedebug = 0; char faketile[MAXTILES]; void loadtile(short tilenume) { char *ptr; long i, dasiz; if ((unsigned)tilenume >= (unsigned)MAXTILES) return; dasiz = tilesizx[tilenume]*tilesizy[tilenume]; if (dasiz <= 0) return; i = tilefilenum[tilenume]; if (i != artfilnum) { if (artfil != -1) kclose(artfil); artfilnum = i; artfilplc = 0L; artfilename[7] = (i%10)+48; artfilename[6] = ((i/10)%10)+48; artfilename[5] = ((i/100)%10)+48; artfil = kopen4load(artfilename,0); faketimerhandler(); } if (cachedebug) printOSD("Tile:%d\n",tilenume); if (waloff[tilenume] == 0) { walock[tilenume] = 199; allocache(&waloff[tilenume],dasiz,&walock[tilenume]); } if (!faketile[tilenume]) { if (artfilplc != tilefileoffs[tilenume]) { klseek(artfil,tilefileoffs[tilenume]-artfilplc,BSEEK_CUR); faketimerhandler(); } ptr = (char *)waloff[tilenume]; kread(artfil,ptr,dasiz); faketimerhandler(); artfilplc = tilefileoffs[tilenume]+dasiz; } else { Bmemset((char *)waloff[tilenume],0,dasiz); faketimerhandler(); } } void checktile(short tilenume) { if (!waloff[tilenume]) loadtile(tilenume); } // // allocatepermanenttile // long allocatepermanenttile(short tilenume, long xsiz, long ysiz) { long j, dasiz; if ((xsiz <= 0) || (ysiz <= 0) || ((unsigned)tilenume >= (unsigned)MAXTILES)) return(0); dasiz = xsiz*ysiz; walock[tilenume] = 255; allocache(&waloff[tilenume],dasiz,&walock[tilenume]); tilesizx[tilenume] = xsiz; tilesizy[tilenume] = ysiz; picanm[tilenume] = 0; j = 15; while ((j > 1) && (pow2long[j] > xsiz)) j--; picsiz[tilenume] = ((char)j); j = 15; while ((j > 1) && (pow2long[j] > ysiz)) j--; picsiz[tilenume] += ((char)(j<<4)); return(waloff[tilenume]); } // // copytilepiece // void copytilepiece(long tilenume1, long sx1, long sy1, long xsiz, long ysiz, long tilenume2, long sx2, long sy2) { char *ptr1, *ptr2, dat; long xsiz1, ysiz1, xsiz2, ysiz2, i, j, x1, y1, x2, y2; xsiz1 = tilesizx[tilenume1]; ysiz1 = tilesizy[tilenume1]; xsiz2 = tilesizx[tilenume2]; ysiz2 = tilesizy[tilenume2]; if ((xsiz1 > 0) && (ysiz1 > 0) && (xsiz2 > 0) && (ysiz2 > 0)) { if (waloff[tilenume1] == 0) loadtile(tilenume1); if (waloff[tilenume2] == 0) loadtile(tilenume2); x1 = sx1; for (i=0;i= 0) && (y2 >= 0) && (x2 < xsiz2) && (y2 < ysiz2)) { ptr1 = (char *)(waloff[tilenume1] + x1*ysiz1 + y1); ptr2 = (char *)(waloff[tilenume2] + x2*ysiz2 + y2); dat = *ptr1; if (dat != 255) *ptr2 = *ptr1; } y1++; if (y1 >= ysiz1) y1 = 0; } x1++; if (x1 >= xsiz1) x1 = 0; } } } // // qloadkvx // #ifdef SUPERBUILD long qloadkvx(long voxindex, char *filename) { long i, fil, dasiz, lengcnt, lengtot; char *ptr; if ((fil = kopen4load(filename,0)) == -1) return -1; lengcnt = 0; lengtot = kfilelength(fil); for (i=0;i= lengtot-768) break; } kclose(fil); #if defined POLYMOST && defined USE_OPENGL if (voxmodels[voxindex]) { voxfree(voxmodels[voxindex]); voxmodels[voxindex] = NULL; } voxmodels[voxindex] = voxload(filename); #endif return 0; } #endif // // clipinsidebox // long clipinsidebox(long x, long y, short wallnum, long walldist) { walltype *wal; long x1, y1, x2, y2, r; r = (walldist<<1); wal = &wall[wallnum]; x1 = wal->x+walldist-x; y1 = wal->y+walldist-y; wal = &wall[wal->point2]; x2 = wal->x+walldist-x; y2 = wal->y+walldist-y; if ((x1 < 0) && (x2 < 0)) return(0); if ((y1 < 0) && (y2 < 0)) return(0); if ((x1 >= r) && (x2 >= r)) return(0); if ((y1 >= r) && (y2 >= r)) return(0); x2 -= x1; y2 -= y1; if (x2*(walldist-y1) >= y2*(walldist-x1)) //Front { if (x2 > 0) x2 *= (0-y1); else x2 *= (r-y1); if (y2 > 0) y2 *= (r-x1); else y2 *= (0-x1); return(x2 < y2); } if (x2 > 0) x2 *= (r-y1); else x2 *= (0-y1); if (y2 > 0) y2 *= (0-x1); else y2 *= (r-x1); return((x2 >= y2)<<1); } // // clipinsideboxline // long clipinsideboxline(long x, long y, long x1, long y1, long x2, long y2, long walldist) { long r; r = (walldist<<1); x1 += walldist-x; x2 += walldist-x; if ((x1 < 0) && (x2 < 0)) return(0); if ((x1 >= r) && (x2 >= r)) return(0); y1 += walldist-y; y2 += walldist-y; if ((y1 < 0) && (y2 < 0)) return(0); if ((y1 >= r) && (y2 >= r)) return(0); x2 -= x1; y2 -= y1; if (x2*(walldist-y1) >= y2*(walldist-x1)) //Front { if (x2 > 0) x2 *= (0-y1); else x2 *= (r-y1); if (y2 > 0) y2 *= (r-x1); else y2 *= (0-x1); return(x2 < y2); } if (x2 > 0) x2 *= (r-y1); else x2 *= (0-y1); if (y2 > 0) y2 *= (0-x1); else y2 *= (r-x1); return((x2 >= y2)<<1); } // // inside // long inside(long x, long y, short sectnum) { walltype *wal; long i, x1, y1, x2, y2; unsigned long cnt; if ((sectnum < 0) || (sectnum >= numsectors)) return(-1); cnt = 0; wal = &wall[sector[sectnum].wallptr]; i = sector[sectnum].wallnum; do { y1 = wal->y-y; y2 = wall[wal->point2].y-y; if ((y1^y2) < 0) { x1 = wal->x-x; x2 = wall[wal->point2].x-x; if ((x1^x2) >= 0) cnt ^= x1; else cnt ^= (x1*y2-x2*y1)^y2; } wal++; i--; } while (i); return(cnt>>31); } // // getangle // long getangle(long xvect, long yvect) { if ((xvect|yvect) == 0) return(0); if (xvect == 0) return(512+((yvect<0)<<10)); if (yvect == 0) return(((xvect<0)<<10)); if (xvect == yvect) return(256+((xvect<0)<<10)); if (xvect == -yvect) return(768+((xvect>0)<<10)); if (klabs(xvect) > klabs(yvect)) return(((radarang[640+scale(160,yvect,xvect)]>>6)+((xvect<0)<<10))&2047); return(((radarang[640-scale(160,xvect,yvect)]>>6)+512+((yvect<0)<<10))&2047); } // // ksqrt // long ksqrt(long num) { return(nsqrtasm(num)); } // // krecip // long krecip(long num) { return(krecipasm(num)); } // // setsprite // long setsprite(short spritenum, long newx, long newy, long newz) { short tempsectnum; sprite[spritenum].x = newx; sprite[spritenum].y = newy; sprite[spritenum].z = newz; tempsectnum = sprite[spritenum].sectnum; #ifdef SETSPRITEZ updatesectorz(newx,newy,newz,&tempsectnum); #else updatesector(newx,newy,&tempsectnum); #endif if (tempsectnum < 0) return(-1); if (tempsectnum != sprite[spritenum].sectnum) changespritesect(spritenum,tempsectnum); return(0); } // // insertsprite // long insertsprite(short sectnum, short statnum) { insertspritestat(statnum); return(insertspritesect(sectnum)); } // // deletesprite // long deletesprite(short spritenum) { deletespritestat(spritenum); return(deletespritesect(spritenum)); } // // changespritesect // long changespritesect(short spritenum, short newsectnum) { if ((newsectnum < 0) || (newsectnum > MAXSECTORS)) return(-1); if (sprite[spritenum].sectnum == newsectnum) return(0); if (sprite[spritenum].sectnum == MAXSECTORS) return(-1); if (deletespritesect(spritenum) < 0) return(-1); insertspritesect(newsectnum); return(0); } // // changespritestat // long changespritestat(short spritenum, short newstatnum) { if ((newstatnum < 0) || (newstatnum > MAXSTATUS)) return(-1); if (sprite[spritenum].statnum == newstatnum) return(0); if (sprite[spritenum].statnum == MAXSTATUS) return(-1); if (deletespritestat(spritenum) < 0) return(-1); insertspritestat(newstatnum); return(0); } // // nextsectorneighborz // long nextsectorneighborz(short sectnum, long thez, short topbottom, short direction) { walltype *wal; long i, testz, nextz; short sectortouse; if (direction == 1) nextz = 0x7fffffff; else nextz = 0x80000000; sectortouse = -1; wal = &wall[sector[sectnum].wallptr]; i = sector[sectnum].wallnum; do { if (wal->nextsector >= 0) { if (topbottom == 1) { testz = sector[wal->nextsector].floorz; if (direction == 1) { if ((testz > thez) && (testz < nextz)) { nextz = testz; sectortouse = wal->nextsector; } } else { if ((testz < thez) && (testz > nextz)) { nextz = testz; sectortouse = wal->nextsector; } } } else { testz = sector[wal->nextsector].ceilingz; if (direction == 1) { if ((testz > thez) && (testz < nextz)) { nextz = testz; sectortouse = wal->nextsector; } } else { if ((testz < thez) && (testz > nextz)) { nextz = testz; sectortouse = wal->nextsector; } } } } wal++; i--; } while (i != 0); return(sectortouse); } // // cansee // long cansee(long x1, long y1, long z1, short sect1, long x2, long y2, long z2, short sect2) { sectortype *sec; walltype *wal, *wal2; long i, cnt, nexts, x, y, z, cz, fz, dasectnum, dacnt, danum; long x21, y21, z21, x31, y31, x34, y34, bot, t; if ((x1 == x2) && (y1 == y2)) return(sect1 == sect2); x21 = x2-x1; y21 = y2-y1; z21 = z2-z1; clipsectorlist[0] = sect1; danum = 1; for (dacnt=0;dacntwallnum,wal=&wall[sec->wallptr];cnt>0;cnt--,wal++) { wal2 = &wall[wal->point2]; x31 = wal->x-x1; x34 = wal->x-wal2->x; y31 = wal->y-y1; y34 = wal->y-wal2->y; bot = y21*x34-x21*y34; if (bot <= 0) continue; t = y21*x31-x21*y31; if ((unsigned)t >= (unsigned)bot) continue; t = y31*x34-x31*y34; if ((unsigned)t >= (unsigned)bot) continue; nexts = wal->nextsector; if ((nexts < 0) || (wal->cstat&32)) return(0); t = divscale24(t,bot); x = x1 + mulscale24(x21,t); y = y1 + mulscale24(y21,t); z = z1 + mulscale24(z21,t); getzsofslope((short)dasectnum,x,y,&cz,&fz); if ((z <= cz) || (z >= fz)) return(0); getzsofslope((short)nexts,x,y,&cz,&fz); if ((z <= cz) || (z >= fz)) return(0); for (i=danum-1;i>=0;i--) if (clipsectorlist[i] == nexts) break; if (i < 0) clipsectorlist[danum++] = nexts; } } for (i=danum-1;i>=0;i--) if (clipsectorlist[i] == sect2) return(1); return(0); } // // hitscan // long hitscan(long xs, long ys, long zs, short sectnum, long vx, long vy, long vz, short *hitsect, short *hitwall, short *hitsprite, long *hitx, long *hity, long *hitz, unsigned long cliptype) { sectortype *sec; walltype *wal, *wal2; spritetype *spr; long z, zz, x1, y1=0, z1=0, x2, y2, x3, y3, x4, y4, intx, inty, intz; long topt, topu, bot, dist, offx, offy, cstat; long i, j, k, l, tilenum, xoff, yoff, dax, day, daz, daz2; long ang, cosang, sinang, xspan, yspan, xrepeat, yrepeat; long dawalclipmask, dasprclipmask; short tempshortcnt, tempshortnum, dasector, startwall, endwall; short nextsector; char clipyou; *hitsect = -1; *hitwall = -1; *hitsprite = -1; if (sectnum < 0) return(-1); *hitx = hitscangoalx; *hity = hitscangoaly; dawalclipmask = (cliptype&65535); dasprclipmask = (cliptype>>16); clipsectorlist[0] = sectnum; tempshortcnt = 0; tempshortnum = 1; do { dasector = clipsectorlist[tempshortcnt]; sec = §or[dasector]; x1 = 0x7fffffff; if (sec->ceilingstat&2) { wal = &wall[sec->wallptr]; wal2 = &wall[wal->point2]; dax = wal2->x-wal->x; day = wal2->y-wal->y; i = nsqrtasm(dax*dax+day*day); if (i == 0) continue; i = divscale15(sec->ceilingheinum,i); dax *= i; day *= i; j = (vz<<8)-dmulscale15(dax,vy,-day,vx); if (j != 0) { i = ((sec->ceilingz-zs)<<8)+dmulscale15(dax,ys-wal->y,-day,xs-wal->x); if (((i^j) >= 0) && ((klabs(i)>>1) < klabs(j))) { i = divscale30(i,j); x1 = xs + mulscale30(vx,i); y1 = ys + mulscale30(vy,i); z1 = zs + mulscale30(vz,i); } } } else if ((vz < 0) && (zs >= sec->ceilingz)) { z1 = sec->ceilingz; i = z1-zs; if ((klabs(i)>>1) < -vz) { i = divscale30(i,vz); x1 = xs + mulscale30(vx,i); y1 = ys + mulscale30(vy,i); } } if ((x1 != 0x7fffffff) && (klabs(x1-xs)+klabs(y1-ys) < klabs((*hitx)-xs)+klabs((*hity)-ys))) if (inside(x1,y1,dasector) != 0) { *hitsect = dasector; *hitwall = -1; *hitsprite = -1; *hitx = x1; *hity = y1; *hitz = z1; } x1 = 0x7fffffff; if (sec->floorstat&2) { wal = &wall[sec->wallptr]; wal2 = &wall[wal->point2]; dax = wal2->x-wal->x; day = wal2->y-wal->y; i = nsqrtasm(dax*dax+day*day); if (i == 0) continue; i = divscale15(sec->floorheinum,i); dax *= i; day *= i; j = (vz<<8)-dmulscale15(dax,vy,-day,vx); if (j != 0) { i = ((sec->floorz-zs)<<8)+dmulscale15(dax,ys-wal->y,-day,xs-wal->x); if (((i^j) >= 0) && ((klabs(i)>>1) < klabs(j))) { i = divscale30(i,j); x1 = xs + mulscale30(vx,i); y1 = ys + mulscale30(vy,i); z1 = zs + mulscale30(vz,i); } } } else if ((vz > 0) && (zs <= sec->floorz)) { z1 = sec->floorz; i = z1-zs; if ((klabs(i)>>1) < vz) { i = divscale30(i,vz); x1 = xs + mulscale30(vx,i); y1 = ys + mulscale30(vy,i); } } if ((x1 != 0x7fffffff) && (klabs(x1-xs)+klabs(y1-ys) < klabs((*hitx)-xs)+klabs((*hity)-ys))) if (inside(x1,y1,dasector) != 0) { *hitsect = dasector; *hitwall = -1; *hitsprite = -1; *hitx = x1; *hity = y1; *hitz = z1; } startwall = sec->wallptr; endwall = startwall + sec->wallnum; for (z=startwall,wal=&wall[startwall];zpoint2]; x1 = wal->x; y1 = wal->y; x2 = wal2->x; y2 = wal2->y; if ((x1-xs)*(y2-ys) < (x2-xs)*(y1-ys)) continue; if (rintersect(xs,ys,zs,vx,vy,vz,x1,y1,x2,y2,&intx,&inty,&intz) == 0) continue; if (klabs(intx-xs)+klabs(inty-ys) >= klabs((*hitx)-xs)+klabs((*hity)-ys)) continue; nextsector = wal->nextsector; if ((nextsector < 0) || (wal->cstat&dawalclipmask)) { *hitsect = dasector; *hitwall = z; *hitsprite = -1; *hitx = intx; *hity = inty; *hitz = intz; continue; } getzsofslope(nextsector,intx,inty,&daz,&daz2); if ((intz <= daz) || (intz >= daz2)) { *hitsect = dasector; *hitwall = z; *hitsprite = -1; *hitx = intx; *hity = inty; *hitz = intz; continue; } for (zz=tempshortnum-1;zz>=0;zz--) if (clipsectorlist[zz] == nextsector) break; if (zz < 0) clipsectorlist[tempshortnum++] = nextsector; } for (z=headspritesect[dasector];z>=0;z=nextspritesect[z]) { spr = &sprite[z]; cstat = spr->cstat; #ifdef POLYMOST if (!hitallsprites) #endif if ((cstat&dasprclipmask) == 0) continue; x1 = spr->x; y1 = spr->y; z1 = spr->z; switch (cstat&48) { case 0: topt = vx*(x1-xs) + vy*(y1-ys); if (topt <= 0) continue; bot = vx*vx + vy*vy; if (bot == 0) continue; intz = zs+scale(vz,topt,bot); i = (tilesizy[spr->picnum]*spr->yrepeat<<2); if (cstat&128) z1 += (i>>1); if (picanm[spr->picnum]&0x00ff0000) z1 -= ((long)((signed char)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2); if ((intz > z1) || (intz < z1-i)) continue; topu = vx*(y1-ys) - vy*(x1-xs); offx = scale(vx,topu,bot); offy = scale(vy,topu,bot); dist = offx*offx + offy*offy; i = tilesizx[spr->picnum]*spr->xrepeat; i *= i; if (dist > (i>>7)) continue; intx = xs + scale(vx,topt,bot); inty = ys + scale(vy,topt,bot); if (klabs(intx-xs)+klabs(inty-ys) > klabs((*hitx)-xs)+klabs((*hity)-ys)) continue; *hitsect = dasector; *hitwall = -1; *hitsprite = z; *hitx = intx; *hity = inty; *hitz = intz; break; case 16: //These lines get the 2 points of the rotated sprite //Given: (x1, y1) starts out as the center point tilenum = spr->picnum; xoff = (long)((signed char)((picanm[tilenum]>>8)&255))+((long)spr->xoffset); if ((cstat&4) > 0) xoff = -xoff; k = spr->ang; l = spr->xrepeat; dax = sintable[k&2047]*l; day = sintable[(k+1536)&2047]*l; l = tilesizx[tilenum]; k = (l>>1)+xoff; x1 -= mulscale16(dax,k); x2 = x1+mulscale16(dax,l); y1 -= mulscale16(day,k); y2 = y1+mulscale16(day,l); if ((cstat&64) != 0) //back side of 1-way sprite if ((x1-xs)*(y2-ys) < (x2-xs)*(y1-ys)) continue; if (rintersect(xs,ys,zs,vx,vy,vz,x1,y1,x2,y2,&intx,&inty,&intz) == 0) continue; if (klabs(intx-xs)+klabs(inty-ys) > klabs((*hitx)-xs)+klabs((*hity)-ys)) continue; k = ((tilesizy[spr->picnum]*spr->yrepeat)<<2); if (cstat&128) daz = spr->z+(k>>1); else daz = spr->z; if (picanm[spr->picnum]&0x00ff0000) daz -= ((long)((signed char)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2); if ((intz < daz) && (intz > daz-k)) { *hitsect = dasector; *hitwall = -1; *hitsprite = z; *hitx = intx; *hity = inty; *hitz = intz; } break; case 32: if (vz == 0) continue; intz = z1; if (((intz-zs)^vz) < 0) continue; if ((cstat&64) != 0) if ((zs > intz) == ((cstat&8)==0)) continue; intx = xs+scale(intz-zs,vx,vz); inty = ys+scale(intz-zs,vy,vz); if (klabs(intx-xs)+klabs(inty-ys) > klabs((*hitx)-xs)+klabs((*hity)-ys)) continue; tilenum = spr->picnum; xoff = (long)((signed char)((picanm[tilenum]>>8)&255))+((long)spr->xoffset); yoff = (long)((signed char)((picanm[tilenum]>>16)&255))+((long)spr->yoffset); if ((cstat&4) > 0) xoff = -xoff; if ((cstat&8) > 0) yoff = -yoff; ang = spr->ang; cosang = sintable[(ang+512)&2047]; sinang = sintable[ang]; xspan = tilesizx[tilenum]; xrepeat = spr->xrepeat; yspan = tilesizy[tilenum]; yrepeat = spr->yrepeat; dax = ((xspan>>1)+xoff)*xrepeat; day = ((yspan>>1)+yoff)*yrepeat; x1 += dmulscale16(sinang,dax,cosang,day)-intx; y1 += dmulscale16(sinang,day,-cosang,dax)-inty; l = xspan*xrepeat; x2 = x1 - mulscale16(sinang,l); y2 = y1 + mulscale16(cosang,l); l = yspan*yrepeat; k = -mulscale16(cosang,l); x3 = x2+k; x4 = x1+k; k = -mulscale16(sinang,l); y3 = y2+k; y4 = y1+k; clipyou = 0; if ((y1^y2) < 0) { if ((x1^x2) < 0) clipyou ^= (x1*y2= 0) clipyou ^= 1; } if ((y2^y3) < 0) { if ((x2^x3) < 0) clipyou ^= (x2*y3= 0) clipyou ^= 1; } if ((y3^y4) < 0) { if ((x3^x4) < 0) clipyou ^= (x3*y4= 0) clipyou ^= 1; } if ((y4^y1) < 0) { if ((x4^x1) < 0) clipyou ^= (x4*y1= 0) clipyou ^= 1; } if (clipyou != 0) { *hitsect = dasector; *hitwall = -1; *hitsprite = z; *hitx = intx; *hity = inty; *hitz = intz; } break; } } tempshortcnt++; } while (tempshortcnt < tempshortnum); return(0); } // // neartag // long neartag(long xs, long ys, long zs, short sectnum, short ange, short *neartagsector, short *neartagwall, short *neartagsprite, long *neartaghitdist, long neartagrange, char tagsearch) { walltype *wal, *wal2; spritetype *spr; long i, z, zz, xe, ye, ze, x1, y1, z1, x2, y2, intx, inty, intz; long topt, topu, bot, dist, offx, offy, vx, vy, vz; short tempshortcnt, tempshortnum, dasector, startwall, endwall; short nextsector, good; *neartagsector = -1; *neartagwall = -1; *neartagsprite = -1; *neartaghitdist = 0; if (sectnum < 0) return(0); if ((tagsearch < 1) || (tagsearch > 3)) return(0); vx = mulscale14(sintable[(ange+2560)&2047],neartagrange); xe = xs+vx; vy = mulscale14(sintable[(ange+2048)&2047],neartagrange); ye = ys+vy; vz = 0; ze = 0; clipsectorlist[0] = sectnum; tempshortcnt = 0; tempshortnum = 1; do { dasector = clipsectorlist[tempshortcnt]; startwall = sector[dasector].wallptr; endwall = startwall + sector[dasector].wallnum - 1; for (z=startwall,wal=&wall[startwall];z<=endwall;z++,wal++) { wal2 = &wall[wal->point2]; x1 = wal->x; y1 = wal->y; x2 = wal2->x; y2 = wal2->y; nextsector = wal->nextsector; good = 0; if (nextsector >= 0) { if ((tagsearch&1) && sector[nextsector].lotag) good |= 1; if ((tagsearch&2) && sector[nextsector].hitag) good |= 1; } if ((tagsearch&1) && wal->lotag) good |= 2; if ((tagsearch&2) && wal->hitag) good |= 2; if ((good == 0) && (nextsector < 0)) continue; if ((x1-xs)*(y2-ys) < (x2-xs)*(y1-ys)) continue; if (lintersect(xs,ys,zs,xe,ye,ze,x1,y1,x2,y2,&intx,&inty,&intz) == 1) { if (good != 0) { if (good&1) *neartagsector = nextsector; if (good&2) *neartagwall = z; *neartaghitdist = dmulscale14(intx-xs,sintable[(ange+2560)&2047],inty-ys,sintable[(ange+2048)&2047]); xe = intx; ye = inty; ze = intz; } if (nextsector >= 0) { for (zz=tempshortnum-1;zz>=0;zz--) if (clipsectorlist[zz] == nextsector) break; if (zz < 0) clipsectorlist[tempshortnum++] = nextsector; } } } for (z=headspritesect[dasector];z>=0;z=nextspritesect[z]) { spr = &sprite[z]; good = 0; if ((tagsearch&1) && spr->lotag) good |= 1; if ((tagsearch&2) && spr->hitag) good |= 1; if (good != 0) { x1 = spr->x; y1 = spr->y; z1 = spr->z; topt = vx*(x1-xs) + vy*(y1-ys); if (topt > 0) { bot = vx*vx + vy*vy; if (bot != 0) { intz = zs+scale(vz,topt,bot); i = tilesizy[spr->picnum]*spr->yrepeat; if (spr->cstat&128) z1 += (i<<1); if (picanm[spr->picnum]&0x00ff0000) z1 -= ((long)((signed char)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2); if ((intz <= z1) && (intz >= z1-(i<<2))) { topu = vx*(y1-ys) - vy*(x1-xs); offx = scale(vx,topu,bot); offy = scale(vy,topu,bot); dist = offx*offx + offy*offy; i = (tilesizx[spr->picnum]*spr->xrepeat); i *= i; if (dist <= (i>>7)) { intx = xs + scale(vx,topt,bot); inty = ys + scale(vy,topt,bot); if (klabs(intx-xs)+klabs(inty-ys) < klabs(xe-xs)+klabs(ye-ys)) { *neartagsprite = z; *neartaghitdist = dmulscale14(intx-xs,sintable[(ange+2560)&2047],inty-ys,sintable[(ange+2048)&2047]); xe = intx; ye = inty; ze = intz; } } } } } } } tempshortcnt++; } while (tempshortcnt < tempshortnum); return(0); } // // dragpoint // void dragpoint(short pointhighlight, long dax, long day) { short cnt, tempshort; wall[pointhighlight].x = dax; wall[pointhighlight].y = day; cnt = MAXWALLS; tempshort = pointhighlight; //search points CCW do { if (wall[tempshort].nextwall >= 0) { tempshort = wall[wall[tempshort].nextwall].point2; wall[tempshort].x = dax; wall[tempshort].y = day; } else { tempshort = pointhighlight; //search points CW if not searched all the way around do { if (wall[lastwall(tempshort)].nextwall >= 0) { tempshort = wall[lastwall(tempshort)].nextwall; wall[tempshort].x = dax; wall[tempshort].y = day; } else { break; } cnt--; } while ((tempshort != pointhighlight) && (cnt > 0)); break; } cnt--; } while ((tempshort != pointhighlight) && (cnt > 0)); } // // lastwall // long lastwall(short point) { long i, j, cnt; if ((point > 0) && (wall[point-1].point2 == point)) return(point-1); i = point; cnt = MAXWALLS; do { j = wall[i].point2; if (j == point) return(i); i = j; cnt--; } while (cnt > 0); return(point); } #define addclipline(dax1, day1, dax2, day2, daoval) \ { \ if (clipnum < MAXCLIPNUM) { \ clipit[clipnum].x1 = dax1; clipit[clipnum].y1 = day1; \ clipit[clipnum].x2 = dax2; clipit[clipnum].y2 = day2; \ clipobjectval[clipnum] = daoval; \ clipnum++; \ } \ } \ long clipmoveboxtracenum = 3; // // clipmove // long clipmove (long *x, long *y, long *z, short *sectnum, long xvect, long yvect, long walldist, long ceildist, long flordist, unsigned long cliptype) { walltype *wal, *wal2; spritetype *spr; sectortype *sec, *sec2; long i, j, templong1, templong2; long oxvect, oyvect, goalx, goaly, intx, inty, lx, ly, retval; long k, l, clipsectcnt, startwall, endwall, cstat, dasect; long x1, y1, x2, y2, cx, cy, rad, xmin, ymin, xmax, ymax, daz, daz2; long bsz, dax, day, xoff, yoff, xspan, yspan, cosang, sinang, tilenum; long xrepeat, yrepeat, gx, gy, dx, dy, dasprclipmask, dawalclipmask; long hitwall, cnt, clipyou; if (((xvect|yvect) == 0) || (*sectnum < 0)) return(0); retval = 0; oxvect = xvect; oyvect = yvect; goalx = (*x) + (xvect>>14); goaly = (*y) + (yvect>>14); clipnum = 0; cx = (((*x)+goalx)>>1); cy = (((*y)+goaly)>>1); //Extra walldist for sprites on sector lines gx = goalx-(*x); gy = goaly-(*y); rad = nsqrtasm(gx*gx + gy*gy) + MAXCLIPDIST+walldist + 8; xmin = cx-rad; ymin = cy-rad; xmax = cx+rad; ymax = cy+rad; dawalclipmask = (cliptype&65535); //CLIPMASK0 = 0x00010001 dasprclipmask = (cliptype>>16); //CLIPMASK1 = 0x01000040 clipsectorlist[0] = (*sectnum); clipsectcnt = 0; clipsectnum = 1; do { dasect = clipsectorlist[clipsectcnt++]; sec = §or[dasect]; startwall = sec->wallptr; endwall = startwall + sec->wallnum; for (j=startwall,wal=&wall[startwall];jpoint2]; if ((wal->x < xmin) && (wal2->x < xmin)) continue; if ((wal->x > xmax) && (wal2->x > xmax)) continue; if ((wal->y < ymin) && (wal2->y < ymin)) continue; if ((wal->y > ymax) && (wal2->y > ymax)) continue; x1 = wal->x; y1 = wal->y; x2 = wal2->x; y2 = wal2->y; dx = x2-x1; dy = y2-y1; if (dx*((*y)-y1) < ((*x)-x1)*dy) continue; //If wall's not facing you if (dx > 0) dax = dx*(ymin-y1); else dax = dx*(ymax-y1); if (dy > 0) day = dy*(xmax-x1); else day = dy*(xmin-x1); if (dax >= day) continue; clipyou = 0; if ((wal->nextsector < 0) || (wal->cstat&dawalclipmask)) clipyou = 1; else if (editstatus == 0) { if (rintersect(*x,*y,0,gx,gy,0,x1,y1,x2,y2,&dax,&day,&daz) == 0) dax = *x, day = *y; daz = getflorzofslope((short)dasect,dax,day); daz2 = getflorzofslope(wal->nextsector,dax,day); sec2 = §or[wal->nextsector]; if (daz2 < daz-(1<<8)) if ((sec2->floorstat&1) == 0) if ((*z) >= daz2-(flordist-1)) clipyou = 1; if (clipyou == 0) { daz = getceilzofslope((short)dasect,dax,day); daz2 = getceilzofslope(wal->nextsector,dax,day); if (daz2 > daz+(1<<8)) if ((sec2->ceilingstat&1) == 0) if ((*z) <= daz2+(ceildist-1)) clipyou = 1; } } if (clipyou) { //Add 2 boxes at endpoints bsz = walldist; if (gx < 0) bsz = -bsz; addclipline(x1-bsz,y1-bsz,x1-bsz,y1+bsz,(short)j+32768); addclipline(x2-bsz,y2-bsz,x2-bsz,y2+bsz,(short)j+32768); bsz = walldist; if (gy < 0) bsz = -bsz; addclipline(x1+bsz,y1-bsz,x1-bsz,y1-bsz,(short)j+32768); addclipline(x2+bsz,y2-bsz,x2-bsz,y2-bsz,(short)j+32768); dax = walldist; if (dy > 0) dax = -dax; day = walldist; if (dx < 0) day = -day; addclipline(x1+dax,y1+day,x2+dax,y2+day,(short)j+32768); } else { for (i=clipsectnum-1;i>=0;i--) if (wal->nextsector == clipsectorlist[i]) break; if (i < 0) clipsectorlist[clipsectnum++] = wal->nextsector; } } for (j=headspritesect[dasect];j>=0;j=nextspritesect[j]) { spr = &sprite[j]; cstat = spr->cstat; if ((cstat&dasprclipmask) == 0) continue; x1 = spr->x; y1 = spr->y; switch (cstat&48) { case 0: if ((x1 >= xmin) && (x1 <= xmax) && (y1 >= ymin) && (y1 <= ymax)) { k = ((tilesizy[spr->picnum]*spr->yrepeat)<<2); if (cstat&128) daz = spr->z+(k>>1); else daz = spr->z; if (picanm[spr->picnum]&0x00ff0000) daz -= ((long)((signed char)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2); if (((*z) < daz+ceildist) && ((*z) > daz-k-flordist)) { bsz = (spr->clipdist<<2)+walldist; if (gx < 0) bsz = -bsz; addclipline(x1-bsz,y1-bsz,x1-bsz,y1+bsz,(short)j+49152); bsz = (spr->clipdist<<2)+walldist; if (gy < 0) bsz = -bsz; addclipline(x1+bsz,y1-bsz,x1-bsz,y1-bsz,(short)j+49152); } } break; case 16: k = ((tilesizy[spr->picnum]*spr->yrepeat)<<2); if (cstat&128) daz = spr->z+(k>>1); else daz = spr->z; if (picanm[spr->picnum]&0x00ff0000) daz -= ((long)((signed char)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2); daz2 = daz-k; daz += ceildist; daz2 -= flordist; if (((*z) < daz) && ((*z) > daz2)) { //These lines get the 2 points of the rotated sprite //Given: (x1, y1) starts out as the center point tilenum = spr->picnum; xoff = (long)((signed char)((picanm[tilenum]>>8)&255))+((long)spr->xoffset); if ((cstat&4) > 0) xoff = -xoff; k = spr->ang; l = spr->xrepeat; dax = sintable[k&2047]*l; day = sintable[(k+1536)&2047]*l; l = tilesizx[tilenum]; k = (l>>1)+xoff; x1 -= mulscale16(dax,k); x2 = x1+mulscale16(dax,l); y1 -= mulscale16(day,k); y2 = y1+mulscale16(day,l); if (clipinsideboxline(cx,cy,x1,y1,x2,y2,rad) != 0) { dax = mulscale14(sintable[(spr->ang+256+512)&2047],walldist); day = mulscale14(sintable[(spr->ang+256)&2047],walldist); if ((x1-(*x))*(y2-(*y)) >= (x2-(*x))*(y1-(*y))) //Front { addclipline(x1+dax,y1+day,x2+day,y2-dax,(short)j+49152); } else { if ((cstat&64) != 0) continue; addclipline(x2-dax,y2-day,x1-day,y1+dax,(short)j+49152); } //Side blocker if ((x2-x1)*((*x)-x1) + (y2-y1)*((*y)-y1) < 0) { addclipline(x1-day,y1+dax,x1+dax,y1+day,(short)j+49152); } else if ((x1-x2)*((*x)-x2) + (y1-y2)*((*y)-y2) < 0) { addclipline(x2+day,y2-dax,x2-dax,y2-day,(short)j+49152); } } } break; case 32: daz = spr->z+ceildist; daz2 = spr->z-flordist; if (((*z) < daz) && ((*z) > daz2)) { if ((cstat&64) != 0) if (((*z) > spr->z) == ((cstat&8)==0)) continue; tilenum = spr->picnum; xoff = (long)((signed char)((picanm[tilenum]>>8)&255))+((long)spr->xoffset); yoff = (long)((signed char)((picanm[tilenum]>>16)&255))+((long)spr->yoffset); if ((cstat&4) > 0) xoff = -xoff; if ((cstat&8) > 0) yoff = -yoff; k = spr->ang; cosang = sintable[(k+512)&2047]; sinang = sintable[k]; xspan = tilesizx[tilenum]; xrepeat = spr->xrepeat; yspan = tilesizy[tilenum]; yrepeat = spr->yrepeat; dax = ((xspan>>1)+xoff)*xrepeat; day = ((yspan>>1)+yoff)*yrepeat; rxi[0] = x1 + dmulscale16(sinang,dax,cosang,day); ryi[0] = y1 + dmulscale16(sinang,day,-cosang,dax); l = xspan*xrepeat; rxi[1] = rxi[0] - mulscale16(sinang,l); ryi[1] = ryi[0] + mulscale16(cosang,l); l = yspan*yrepeat; k = -mulscale16(cosang,l); rxi[2] = rxi[1]+k; rxi[3] = rxi[0]+k; k = -mulscale16(sinang,l); ryi[2] = ryi[1]+k; ryi[3] = ryi[0]+k; dax = mulscale14(sintable[(spr->ang-256+512)&2047],walldist); day = mulscale14(sintable[(spr->ang-256)&2047],walldist); if ((rxi[0]-(*x))*(ryi[1]-(*y)) < (rxi[1]-(*x))*(ryi[0]-(*y))) { if (clipinsideboxline(cx,cy,rxi[1],ryi[1],rxi[0],ryi[0],rad) != 0) addclipline(rxi[1]-day,ryi[1]+dax,rxi[0]+dax,ryi[0]+day,(short)j+49152); } else if ((rxi[2]-(*x))*(ryi[3]-(*y)) < (rxi[3]-(*x))*(ryi[2]-(*y))) { if (clipinsideboxline(cx,cy,rxi[3],ryi[3],rxi[2],ryi[2],rad) != 0) addclipline(rxi[3]+day,ryi[3]-dax,rxi[2]-dax,ryi[2]-day,(short)j+49152); } if ((rxi[1]-(*x))*(ryi[2]-(*y)) < (rxi[2]-(*x))*(ryi[1]-(*y))) { if (clipinsideboxline(cx,cy,rxi[2],ryi[2],rxi[1],ryi[1],rad) != 0) addclipline(rxi[2]-dax,ryi[2]-day,rxi[1]-day,ryi[1]+dax,(short)j+49152); } else if ((rxi[3]-(*x))*(ryi[0]-(*y)) < (rxi[0]-(*x))*(ryi[3]-(*y))) { if (clipinsideboxline(cx,cy,rxi[0],ryi[0],rxi[3],ryi[3],rad) != 0) addclipline(rxi[0]+dax,ryi[0]+day,rxi[3]+day,ryi[3]-dax,(short)j+49152); } } break; } } } while (clipsectcnt < clipsectnum); hitwall = 0; cnt = clipmoveboxtracenum; do { intx = goalx; inty = goaly; if ((hitwall = raytrace(*x, *y, &intx, &inty)) >= 0) { lx = clipit[hitwall].x2-clipit[hitwall].x1; ly = clipit[hitwall].y2-clipit[hitwall].y1; templong2 = lx*lx + ly*ly; if (templong2 > 0) { templong1 = (goalx-intx)*lx + (goaly-inty)*ly; if ((klabs(templong1)>>11) < templong2) i = divscale20(templong1,templong2); else i = 0; goalx = mulscale20(lx,i)+intx; goaly = mulscale20(ly,i)+inty; } templong1 = dmulscale6(lx,oxvect,ly,oyvect); for (i=cnt+1;i<=clipmoveboxtracenum;i++) { j = hitwalls[i]; templong2 = dmulscale6(clipit[j].x2-clipit[j].x1,oxvect,clipit[j].y2-clipit[j].y1,oyvect); if ((templong1^templong2) < 0) { updatesector(*x,*y,sectnum); return(retval); } } keepaway(&goalx, &goaly, hitwall); xvect = ((goalx-intx)<<14); yvect = ((goaly-inty)<<14); if (cnt == clipmoveboxtracenum) retval = clipobjectval[hitwall]; hitwalls[cnt] = hitwall; } cnt--; *x = intx; *y = inty; } while (((xvect|yvect) != 0) && (hitwall >= 0) && (cnt > 0)); for (j=0;j=0;j--) if (inside(*x,*y,j) == 1) { if (sector[j].ceilingstat&2) templong2 = (getceilzofslope((short)j,*x,*y)-(*z)); else templong2 = (sector[j].ceilingz-(*z)); if (templong2 > 0) { if (templong2 < templong1) { *sectnum = j; templong1 = templong2; } } else { if (sector[j].floorstat&2) templong2 = ((*z)-getflorzofslope((short)j,*x,*y)); else templong2 = ((*z)-sector[j].floorz); if (templong2 <= 0) { *sectnum = j; return(retval); } if (templong2 < templong1) { *sectnum = j; templong1 = templong2; } } } return(retval); } // // pushmove // long pushmove (long *x, long *y, long *z, short *sectnum, long walldist, long ceildist, long flordist, unsigned long cliptype) { sectortype *sec, *sec2; walltype *wal, *wal2; spritetype *spr; long i, j, k, t, dx, dy, dax, day, daz, daz2, bad, dir; long dasprclipmask, dawalclipmask; short startwall, endwall, clipsectcnt; char bad2; if ((*sectnum) < 0) return(-1); dawalclipmask = (cliptype&65535); dasprclipmask = (cliptype>>16); k = 32; dir = 1; do { bad = 0; clipsectorlist[0] = *sectnum; clipsectcnt = 0; clipsectnum = 1; do { /*Push FACE sprites for(i=headspritesect[clipsectorlist[clipsectcnt]];i>=0;i=nextspritesect[i]) { spr = &sprite[i]; if (((spr->cstat&48) != 0) && ((spr->cstat&48) != 48)) continue; if ((spr->cstat&dasprclipmask) == 0) continue; dax = (*x)-spr->x; day = (*y)-spr->y; t = (spr->clipdist<<2)+walldist; if ((klabs(dax) < t) && (klabs(day) < t)) { t = ((tilesizy[spr->picnum]*spr->yrepeat)<<2); if (spr->cstat&128) daz = spr->z+(t>>1); else daz = spr->z; if (picanm[spr->picnum]&0x00ff0000) daz -= ((long)((signed char)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2); if (((*z) < daz+ceildist) && ((*z) > daz-t-flordist)) { t = (spr->clipdist<<2)+walldist; j = getangle(dax,day); dx = (sintable[(j+512)&2047]>>11); dy = (sintable[(j)&2047]>>11); bad2 = 16; do { *x = (*x) + dx; *y = (*y) + dy; bad2--; if (bad2 == 0) break; } while ((klabs((*x)-spr->x) < t) && (klabs((*y)-spr->y) < t)); bad = -1; k--; if (k <= 0) return(bad); updatesector(*x,*y,sectnum); } } }*/ sec = §or[clipsectorlist[clipsectcnt]]; if (dir > 0) startwall = sec->wallptr, endwall = startwall + sec->wallnum; else endwall = sec->wallptr, startwall = endwall + sec->wallnum; for (i=startwall,wal=&wall[startwall];i!=endwall;i+=dir,wal+=dir) if (clipinsidebox(*x,*y,i,walldist-4) == 1) { j = 0; if (wal->nextsector < 0) j = 1; if (wal->cstat&dawalclipmask) j = 1; if (j == 0) { sec2 = §or[wal->nextsector]; //Find closest point on wall (dax, day) to (*x, *y) dax = wall[wal->point2].x-wal->x; day = wall[wal->point2].y-wal->y; daz = dax*((*x)-wal->x) + day*((*y)-wal->y); if (daz <= 0) t = 0; else { daz2 = dax*dax+day*day; if (daz >= daz2) t = (1<<30); else t = divscale30(daz,daz2); } dax = wal->x + mulscale30(dax,t); day = wal->y + mulscale30(day,t); daz = getflorzofslope(clipsectorlist[clipsectcnt],dax,day); daz2 = getflorzofslope(wal->nextsector,dax,day); if ((daz2 < daz-(1<<8)) && ((sec2->floorstat&1) == 0)) if (*z >= daz2-(flordist-1)) j = 1; daz = getceilzofslope(clipsectorlist[clipsectcnt],dax,day); daz2 = getceilzofslope(wal->nextsector,dax,day); if ((daz2 > daz+(1<<8)) && ((sec2->ceilingstat&1) == 0)) if (*z <= daz2+(ceildist-1)) j = 1; } if (j != 0) { j = getangle(wall[wal->point2].x-wal->x,wall[wal->point2].y-wal->y); dx = (sintable[(j+1024)&2047]>>11); dy = (sintable[(j+512)&2047]>>11); bad2 = 16; do { *x = (*x) + dx; *y = (*y) + dy; bad2--; if (bad2 == 0) break; } while (clipinsidebox(*x,*y,i,walldist-4) != 0); bad = -1; k--; if (k <= 0) return(bad); updatesector(*x,*y,sectnum); } else { for (j=clipsectnum-1;j>=0;j--) if (wal->nextsector == clipsectorlist[j]) break; if (j < 0) clipsectorlist[clipsectnum++] = wal->nextsector; } } clipsectcnt++; } while (clipsectcnt < clipsectnum); dir = -dir; } while (bad != 0); return(bad); } // // updatesector[z] // void updatesector(long x, long y, short *sectnum) { walltype *wal; long i, j; if (inside(x,y,*sectnum) == 1) return; if ((*sectnum >= 0) && (*sectnum < numsectors)) { wal = &wall[sector[*sectnum].wallptr]; j = sector[*sectnum].wallnum; do { i = wal->nextsector; if (i >= 0) if (inside(x,y,(short)i) == 1) { *sectnum = i; return; } wal++; j--; } while (j != 0); } for (i=numsectors-1;i>=0;i--) if (inside(x,y,(short)i) == 1) { *sectnum = i; return; } *sectnum = -1; } void updatesectorz(long x, long y, long z, short *sectnum) { walltype *wal; long i, j, cz, fz; getzsofslope(*sectnum, x, y, &cz, &fz); if ((z >= cz) && (z <= fz)) if (inside(x,y,*sectnum) != 0) return; if ((*sectnum >= 0) && (*sectnum < numsectors)) { wal = &wall[sector[*sectnum].wallptr]; j = sector[*sectnum].wallnum; do { i = wal->nextsector; if (i >= 0) { getzsofslope(i, x, y, &cz, &fz); if ((z >= cz) && (z <= fz)) if (inside(x,y,(short)i) == 1) { *sectnum = i; return; } } wal++; j--; } while (j != 0); } for (i=numsectors-1;i>=0;i--) { getzsofslope(i, x, y, &cz, &fz); if ((z >= cz) && (z <= fz)) if (inside(x,y,(short)i) == 1) { *sectnum = i; return; } } *sectnum = -1; } // // rotatepoint // void rotatepoint(long xpivot, long ypivot, long x, long y, short daang, long *x2, long *y2) { long dacos, dasin; dacos = sintable[(daang+2560)&2047]; dasin = sintable[(daang+2048)&2047]; x -= xpivot; y -= ypivot; *x2 = dmulscale14(x,dacos,-y,dasin) + xpivot; *y2 = dmulscale14(y,dacos,x,dasin) + ypivot; } // // getmousevalues // void getmousevalues(long *mousx, long *mousy, long *bstatus) { readmousexy(mousx,mousy); readmousebstatus(bstatus); } // // krand // long krand(void) { randomseed = (randomseed*27584621)+1; return(((unsigned long)randomseed)>>16); } // // getzrange // void getzrange(long x, long y, long z, short sectnum, long *ceilz, long *ceilhit, long *florz, long *florhit, long walldist, unsigned long cliptype) { sectortype *sec; walltype *wal, *wal2; spritetype *spr; long clipsectcnt, startwall, endwall, tilenum, xoff, yoff, dax, day; long xmin, ymin, xmax, ymax, i, j, k, l, daz, daz2, dx, dy; long x1, y1, x2, y2, x3, y3, x4, y4, ang, cosang, sinang; long xspan, yspan, xrepeat, yrepeat, dasprclipmask, dawalclipmask; short cstat; char clipyou; if (sectnum < 0) { *ceilz = 0x80000000; *ceilhit = -1; *florz = 0x7fffffff; *florhit = -1; return; } //Extra walldist for sprites on sector lines i = walldist+MAXCLIPDIST+1; xmin = x-i; ymin = y-i; xmax = x+i; ymax = y+i; getzsofslope(sectnum,x,y,ceilz,florz); *ceilhit = sectnum+16384; *florhit = sectnum+16384; dawalclipmask = (cliptype&65535); dasprclipmask = (cliptype>>16); clipsectorlist[0] = sectnum; clipsectcnt = 0; clipsectnum = 1; do //Collect sectors inside your square first { sec = §or[clipsectorlist[clipsectcnt]]; startwall = sec->wallptr; endwall = startwall + sec->wallnum; for (j=startwall,wal=&wall[startwall];jnextsector; if (k >= 0) { wal2 = &wall[wal->point2]; x1 = wal->x; x2 = wal2->x; if ((x1 < xmin) && (x2 < xmin)) continue; if ((x1 > xmax) && (x2 > xmax)) continue; y1 = wal->y; y2 = wal2->y; if ((y1 < ymin) && (y2 < ymin)) continue; if ((y1 > ymax) && (y2 > ymax)) continue; dx = x2-x1; dy = y2-y1; if (dx*(y-y1) < (x-x1)*dy) continue; //back if (dx > 0) dax = dx*(ymin-y1); else dax = dx*(ymax-y1); if (dy > 0) day = dy*(xmax-x1); else day = dy*(xmin-x1); if (dax >= day) continue; if (wal->cstat&dawalclipmask) continue; sec = §or[k]; if (editstatus == 0) { if (((sec->ceilingstat&1) == 0) && (z <= sec->ceilingz+(3<<8))) continue; if (((sec->floorstat&1) == 0) && (z >= sec->floorz-(3<<8))) continue; } for (i=clipsectnum-1;i>=0;i--) if (clipsectorlist[i] == k) break; if (i < 0) clipsectorlist[clipsectnum++] = k; if ((x1 < xmin+MAXCLIPDIST) && (x2 < xmin+MAXCLIPDIST)) continue; if ((x1 > xmax-MAXCLIPDIST) && (x2 > xmax-MAXCLIPDIST)) continue; if ((y1 < ymin+MAXCLIPDIST) && (y2 < ymin+MAXCLIPDIST)) continue; if ((y1 > ymax-MAXCLIPDIST) && (y2 > ymax-MAXCLIPDIST)) continue; if (dx > 0) dax += dx*MAXCLIPDIST; else dax -= dx*MAXCLIPDIST; if (dy > 0) day -= dy*MAXCLIPDIST; else day += dy*MAXCLIPDIST; if (dax >= day) continue; //It actually got here, through all the continue's!!! getzsofslope((short)k,x,y,&daz,&daz2); if (daz > *ceilz) { *ceilz = daz; *ceilhit = k+16384; } if (daz2 < *florz) { *florz = daz2; *florhit = k+16384; } } } clipsectcnt++; } while (clipsectcnt < clipsectnum); for (i=0;i=0;j=nextspritesect[j]) { spr = &sprite[j]; cstat = spr->cstat; if (cstat&dasprclipmask) { x1 = spr->x; y1 = spr->y; clipyou = 0; switch (cstat&48) { case 0: k = walldist+(spr->clipdist<<2)+1; if ((klabs(x1-x) <= k) && (klabs(y1-y) <= k)) { daz = spr->z; k = ((tilesizy[spr->picnum]*spr->yrepeat)<<1); if (cstat&128) daz += k; if (picanm[spr->picnum]&0x00ff0000) daz -= ((long)((signed char)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2); daz2 = daz - (k<<1); clipyou = 1; } break; case 16: tilenum = spr->picnum; xoff = (long)((signed char)((picanm[tilenum]>>8)&255))+((long)spr->xoffset); if ((cstat&4) > 0) xoff = -xoff; k = spr->ang; l = spr->xrepeat; dax = sintable[k&2047]*l; day = sintable[(k+1536)&2047]*l; l = tilesizx[tilenum]; k = (l>>1)+xoff; x1 -= mulscale16(dax,k); x2 = x1+mulscale16(dax,l); y1 -= mulscale16(day,k); y2 = y1+mulscale16(day,l); if (clipinsideboxline(x,y,x1,y1,x2,y2,walldist+1) != 0) { daz = spr->z; k = ((tilesizy[spr->picnum]*spr->yrepeat)<<1); if (cstat&128) daz += k; if (picanm[spr->picnum]&0x00ff0000) daz -= ((long)((signed char)((picanm[spr->picnum]>>16)&255))*spr->yrepeat<<2); daz2 = daz-(k<<1); clipyou = 1; } break; case 32: daz = spr->z; daz2 = daz; if ((cstat&64) != 0) if ((z > daz) == ((cstat&8)==0)) continue; tilenum = spr->picnum; xoff = (long)((signed char)((picanm[tilenum]>>8)&255))+((long)spr->xoffset); yoff = (long)((signed char)((picanm[tilenum]>>16)&255))+((long)spr->yoffset); if ((cstat&4) > 0) xoff = -xoff; if ((cstat&8) > 0) yoff = -yoff; ang = spr->ang; cosang = sintable[(ang+512)&2047]; sinang = sintable[ang]; xspan = tilesizx[tilenum]; xrepeat = spr->xrepeat; yspan = tilesizy[tilenum]; yrepeat = spr->yrepeat; dax = ((xspan>>1)+xoff)*xrepeat; day = ((yspan>>1)+yoff)*yrepeat; x1 += dmulscale16(sinang,dax,cosang,day)-x; y1 += dmulscale16(sinang,day,-cosang,dax)-y; l = xspan*xrepeat; x2 = x1 - mulscale16(sinang,l); y2 = y1 + mulscale16(cosang,l); l = yspan*yrepeat; k = -mulscale16(cosang,l); x3 = x2+k; x4 = x1+k; k = -mulscale16(sinang,l); y3 = y2+k; y4 = y1+k; dax = mulscale14(sintable[(spr->ang-256+512)&2047],walldist+4); day = mulscale14(sintable[(spr->ang-256)&2047],walldist+4); x1 += dax; x2 -= day; x3 -= dax; x4 += day; y1 += day; y2 += dax; y3 -= day; y4 -= dax; if ((y1^y2) < 0) { if ((x1^x2) < 0) clipyou ^= (x1*y2= 0) clipyou ^= 1; } if ((y2^y3) < 0) { if ((x2^x3) < 0) clipyou ^= (x2*y3= 0) clipyou ^= 1; } if ((y3^y4) < 0) { if ((x3^x4) < 0) clipyou ^= (x3*y4= 0) clipyou ^= 1; } if ((y4^y1) < 0) { if ((x4^x1) < 0) clipyou ^= (x4*y1= 0) clipyou ^= 1; } break; } if (clipyou != 0) { if ((z > daz) && (daz > *ceilz)) { *ceilz = daz; *ceilhit = j+49152; } if ((z < daz2) && (daz2 < *florz)) { *florz = daz2; *florhit = j+49152; } } } } } } // // setview // void setview(long x1, long y1, long x2, long y2) { long i; windowx1 = x1; wx1 = (x1<<12); windowy1 = y1; wy1 = (y1<<12); windowx2 = x2; wx2 = ((x2+1)<<12); windowy2 = y2; wy2 = ((y2+1)<<12); xdimen = (x2-x1)+1; halfxdimen = (xdimen>>1); xdimenrecip = divscale32(1L,xdimen); ydimen = (y2-y1)+1; setaspect(65536L,(long)divscale16(ydim*320L,xdim*200L)); for (i=0;i cx2) || (cy1 > cy2)) return; if (z <= 16) return; if (picanm[picnum]&192) picnum += animateoffs(picnum,(short)0xc000); if ((tilesizx[picnum] <= 0) || (tilesizy[picnum] <= 0)) return; if (((dastat&128) == 0) || (numpages < 2) || (beforedrawrooms != 0)) { begindrawing(); //{{{ dorotatesprite(sx,sy,z,a,picnum,dashade,dapalnum,dastat,cx1,cy1,cx2,cy2,guniqhudid); enddrawing(); //}}} } if ((dastat&64) && (cx1 <= 0) && (cy1 <= 0) && (cx2 >= xdim-1) && (cy2 >= ydim-1) && (sx == (160<<16)) && (sy == (100<<16)) && (z == 65536L) && (a == 0) && ((dastat&1) == 0)) permhead = permtail = 0; if ((dastat&128) == 0) return; if (numpages >= 2) { per = &permfifo[permhead]; per->sx = sx; per->sy = sy; per->z = z; per->a = a; per->picnum = picnum; per->dashade = dashade; per->dapalnum = dapalnum; per->dastat = dastat; per->pagesleft = numpages+((beforedrawrooms&1)<<7); per->cx1 = cx1; per->cy1 = cy1; per->cx2 = cx2; per->cy2 = cy2; per->uniqid = guniqhudid; //JF extension //Would be better to optimize out true bounding boxes if (dastat&64) //If non-masking write, checking for overlapping cases { for (i=permtail;i!=permhead;i=((i+1)&(MAXPERMS-1))) { per2 = &permfifo[i]; if ((per2->pagesleft&127) == 0) continue; if (per2->sx != per->sx) continue; if (per2->sy != per->sy) continue; if (per2->z != per->z) continue; if (per2->a != per->a) continue; if (tilesizx[per2->picnum] > tilesizx[per->picnum]) continue; if (tilesizy[per2->picnum] > tilesizy[per->picnum]) continue; if (per2->cx1 < per->cx1) continue; if (per2->cy1 < per->cy1) continue; if (per2->cx2 > per->cx2) continue; if (per2->cy2 > per->cy2) continue; per2->pagesleft = 0; } if ((per->z == 65536) && (per->a == 0)) for (i=permtail;i!=permhead;i=((i+1)&(MAXPERMS-1))) { per2 = &permfifo[i]; if ((per2->pagesleft&127) == 0) continue; if (per2->z != 65536) continue; if (per2->a != 0) continue; if (per2->cx1 < per->cx1) continue; if (per2->cy1 < per->cy1) continue; if (per2->cx2 > per->cx2) continue; if (per2->cy2 > per->cy2) continue; if ((per2->sx>>16) < (per->sx>>16)) continue; if ((per2->sy>>16) < (per->sy>>16)) continue; if ((per2->sx>>16)+tilesizx[per2->picnum] > (per->sx>>16)+tilesizx[per->picnum]) continue; if ((per2->sy>>16)+tilesizy[per2->picnum] > (per->sy>>16)+tilesizy[per->picnum]) continue; per2->pagesleft = 0; } } permhead = ((permhead+1)&(MAXPERMS-1)); } } // // makepalookup // void makepalookup(long palnum, char *remapbuf, signed char r, signed char g, signed char b, char dastat) { long i, j, palscale; char *ptr, *ptr2; if (paletteloaded == 0) return; if (palookup[palnum] == NULL) { //Allocate palookup buffer if ((palookup[palnum] = (char *)kkmalloc(numpalookups<<8)) == NULL) allocache((long*)&palookup[palnum],numpalookups<<8,&permanentlock); } if (dastat == 0) return; if ((r|g|b|63) != 63) return; if ((r|g|b) == 0) { for (i=0;i<256;i++) { ptr = (char *)(FP_OFF(palookup[0])+remapbuf[i]); ptr2 = (char *)(FP_OFF(palookup[palnum])+i); for (j=0;j= 3) { newpalettesum = crc32once((unsigned char *)curpalettefaded, sizeof(curpalettefaded)); // only reset the textures if the preserve flag (bit 1 of noapply) is clear and // either (a) the new palette is different to the last, or (b) the brightness // changed and we couldn't set it using hardware gamma if (!(noapply&2) && (newpalettesum != lastpalettesum)) gltexinvalidateall(); if (!(noapply&8) && (newpalettesum != lastpalettesum)) gltexinvalidate8(); lastpalettesum = newpalettesum; } #endif palfadergb.r = palfadergb.g = palfadergb.b = 0; palfadedelta = 0; } // // setpalettefade // void setpalettefade(char r, char g, char b, char offset) { int i,k; palette_t p; palfadergb.r = min(63,r) << 2; palfadergb.g = min(63,g) << 2; palfadergb.b = min(63,b) << 2; palfadedelta = min(63,offset) << 2; k = 0; for (i=0;i<256;i++) { if (gammabrightness) p = curpalette[i]; else { p.b = britable[curbrightness][ curpalette[i].b ]; p.g = britable[curbrightness][ curpalette[i].g ]; p.r = britable[curbrightness][ curpalette[i].r ]; } tempbuf[k++] = (curpalettefaded[i].b = p.b + ( ( ( (long)palfadergb.b - (long)p.b ) * (long)offset ) >> 6 ) ) >> 2; tempbuf[k++] = (curpalettefaded[i].g = p.g + ( ( ( (long)palfadergb.g - (long)p.g ) * (long)offset ) >> 6 ) ) >> 2; tempbuf[k++] = (curpalettefaded[i].r = p.r + ( ( ( (long)palfadergb.r - (long)p.r ) * (long)offset ) >> 6 ) ) >> 2; tempbuf[k++] = curpalettefaded[i].f = 0; } setpalette(0,256,(char*)tempbuf); } // // clearview // void clearview(long dacol) { long p, y, dx; if (qsetmode != 200) return; #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3) { palette_t p; if (gammabrightness) p = curpalette[dacol]; else { p.r = britable[curbrightness][ curpalette[dacol].r ]; p.g = britable[curbrightness][ curpalette[dacol].g ]; p.b = britable[curbrightness][ curpalette[dacol].b ]; } bglClearColor(((float)p.r)/255.0, ((float)p.g)/255.0, ((float)p.b)/255.0, 0); bglClear(GL_COLOR_BUFFER_BIT); return; } #endif begindrawing(); //{{{ dx = windowx2-windowx1+1; //dacol += (dacol<<8); dacol += (dacol<<16); p = frameplace+ylookup[windowy1]+windowx1; for (y=windowy1;y<=windowy2;y++) { //clearbufbyte((void*)p,dx,dacol); Bmemset((void*)p,dacol,dx); p += ylookup[1]; } enddrawing(); //}}} faketimerhandler(); } // // clearallviews // void clearallviews(long dacol) { if (qsetmode != 200) return; //dacol += (dacol<<8); dacol += (dacol<<16); #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3) { palette_t p; if (gammabrightness) p = curpalette[dacol]; else { p.r = britable[curbrightness][ curpalette[dacol].r ]; p.g = britable[curbrightness][ curpalette[dacol].g ]; p.b = britable[curbrightness][ curpalette[dacol].b ]; } bglViewport(0,0,xdim,ydim); glox1 = -1; bglClearColor(((float)p.r)/255.0, ((float)p.g)/255.0, ((float)p.b)/255.0, 0); bglClear(GL_COLOR_BUFFER_BIT); return; } #endif begindrawing(); //{{{ //clearbufbyte((void*)frameplace,imageSize,0L); Bmemset((void*)frameplace,dacol,imageSize); enddrawing(); //}}} //nextpage(); faketimerhandler(); } // // plotpixel // void plotpixel(long x, long y, char col) { #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3 && qsetmode == 200) { palette_t p; if (gammabrightness) p = curpalette[col]; else { p.r = britable[curbrightness][ curpalette[col].r ]; p.g = britable[curbrightness][ curpalette[col].g ]; p.b = britable[curbrightness][ curpalette[col].b ]; } setpolymost2dview(); // JBF 20040205: more efficient setup bglBegin(GL_POINTS); bglColor4ub(p.r,p.g,p.b,255); bglVertex2i(x,y); bglEnd(); return; } #endif begindrawing(); //{{{ drawpixel((void*)(ylookup[y]+x+frameplace),(long)col); enddrawing(); //}}} } // // getpixel // char getpixel(long x, long y) { char r; #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3 && qsetmode == 200) return 0; #endif begindrawing(); //{{{ r = readpixel((void*)(ylookup[y]+x+frameplace)); enddrawing(); //}}} return(r); } //MUST USE RESTOREFORDRAWROOMS AFTER DRAWING // // setviewtotile // void setviewtotile(short tilenume, long xsiz, long ysiz) { long i, j; //DRAWROOMS TO TILE BACKUP&SET CODE tilesizx[tilenume] = xsiz; tilesizy[tilenume] = ysiz; bakxsiz[setviewcnt] = xsiz; bakysiz[setviewcnt] = ysiz; bakframeplace[setviewcnt] = frameplace; frameplace = waloff[tilenume]; bakwindowx1[setviewcnt] = windowx1; bakwindowy1[setviewcnt] = windowy1; bakwindowx2[setviewcnt] = windowx2; bakwindowy2[setviewcnt] = windowy2; #ifdef POLYMOST if (setviewcnt == 0) { bakrendmode = rendmode; baktile = tilenume; } rendmode = 0;//2; #endif copybufbyte(&startumost[windowx1],&bakumost[windowx1],(windowx2-windowx1+1)*sizeof(bakumost[0])); copybufbyte(&startdmost[windowx1],&bakdmost[windowx1],(windowx2-windowx1+1)*sizeof(bakdmost[0])); setviewcnt++; offscreenrendering = 1; setview(0,0,ysiz-1,xsiz-1); setaspect(65536,65536); j = 0; for (i=0;i<=xsiz;i++) { ylookup[i] = j, j += ysiz; } setvlinebpl(ysiz); } // // setviewback // extern char modechange; void setviewback(void) { long i, j, k; if (setviewcnt <= 0) return; setviewcnt--; offscreenrendering = (setviewcnt>0); #ifdef POLYMOST if (setviewcnt == 0) { rendmode = bakrendmode; invalidatetile(baktile,-1,-1); } #endif setview(bakwindowx1[setviewcnt],bakwindowy1[setviewcnt], bakwindowx2[setviewcnt],bakwindowy2[setviewcnt]); copybufbyte(&bakumost[windowx1],&startumost[windowx1],(windowx2-windowx1+1)*sizeof(startumost[0])); copybufbyte(&bakdmost[windowx1],&startdmost[windowx1],(windowx2-windowx1+1)*sizeof(startdmost[0])); frameplace = bakframeplace[setviewcnt]; if (setviewcnt == 0) k = bakxsiz[0]; else k = max(bakxsiz[setviewcnt-1],bakxsiz[setviewcnt]); j = 0; for (i=0;i<=k;i++) ylookup[i] = j, j += bytesperline; setvlinebpl(bytesperline); modechange=1; } // // squarerotatetile // void squarerotatetile(short tilenume) { long i, j, k, xsiz, ysiz; char *ptr1, *ptr2; xsiz = tilesizx[tilenume]; ysiz = tilesizy[tilenume]; //supports square tiles only for rotation part if (xsiz == ysiz) { k = (xsiz<<1); for (i=xsiz-1;i>=0;i--) { ptr1 = (char *)(waloff[tilenume]+i*(xsiz+1)); ptr2 = ptr1; if ((i&1) != 0) { ptr1--; ptr2 -= xsiz; swapchar(ptr1,ptr2); } for (j=(i>>1)-1;j>=0;j--) { ptr1 -= 2; ptr2 -= k; swapchar2(ptr1,ptr2,xsiz); } } } } // // preparemirror // void preparemirror(long dax, long day, long daz, short daang, long dahoriz, short dawall, short dasector, long *tposx, long *tposy, short *tang) { long i, j, x, y, dx, dy; x = wall[dawall].x; dx = wall[wall[dawall].point2].x-x; y = wall[dawall].y; dy = wall[wall[dawall].point2].y-y; j = dx*dx + dy*dy; if (j == 0) return; i = (((dax-x)*dx + (day-y)*dy)<<1); *tposx = (x<<1) + scale(dx,i,j) - dax; *tposy = (y<<1) + scale(dy,i,j) - day; *tang = (((getangle(dx,dy)<<1)-daang)&2047); inpreparemirror = 1; } // // completemirror // void completemirror(void) { long i, dy, p; #ifdef POLYMOST if (rendmode) return; #endif //Can't reverse with uninitialized data if (inpreparemirror) { inpreparemirror = 0; return; } if (mirrorsx1 > 0) mirrorsx1--; if (mirrorsx2 < windowx2-windowx1-1) mirrorsx2++; if (mirrorsx2 < mirrorsx1) return; begindrawing(); p = frameplace+ylookup[windowy1+mirrorsy1]+windowx1+mirrorsx1; i = windowx2-windowx1-mirrorsx2-mirrorsx1; mirrorsx2 -= mirrorsx1; for (dy=mirrorsy2-mirrorsy1-1;dy>=0;dy--) { copybufbyte((void*)(p+1),tempbuf,mirrorsx2+1); tempbuf[mirrorsx2] = tempbuf[mirrorsx2-1]; copybufreverse(&tempbuf[mirrorsx2],(void*)(p+i),mirrorsx2+1); p += ylookup[1]; faketimerhandler(); } enddrawing(); } // // sectorofwall // long sectorofwall(short theline) { long i, gap; if ((theline < 0) || (theline >= numwalls)) return(-1); i = wall[theline].nextwall; if (i >= 0) return(wall[i].nextsector); gap = (numsectors>>1); i = gap; while (gap > 1) { gap >>= 1; if (sector[i].wallptr < theline) i += gap; else i -= gap; } while (sector[i].wallptr > theline) i--; while (sector[i].wallptr+sector[i].wallnum <= theline) i++; return(i); } // // getceilzofslope // long getceilzofslope(short sectnum, long dax, long day) { long dx, dy, i, j; walltype *wal; if (!(sector[sectnum].ceilingstat&2)) return(sector[sectnum].ceilingz); wal = &wall[sector[sectnum].wallptr]; dx = wall[wal->point2].x-wal->x; dy = wall[wal->point2].y-wal->y; i = (nsqrtasm(dx*dx+dy*dy)<<5); if (i == 0) return(sector[sectnum].ceilingz); j = dmulscale3(dx,day-wal->y,-dy,dax-wal->x); return(sector[sectnum].ceilingz+scale(sector[sectnum].ceilingheinum,j,i)); } // // getflorzofslope // long getflorzofslope(short sectnum, long dax, long day) { long dx, dy, i, j; walltype *wal; if (!(sector[sectnum].floorstat&2)) return(sector[sectnum].floorz); wal = &wall[sector[sectnum].wallptr]; dx = wall[wal->point2].x-wal->x; dy = wall[wal->point2].y-wal->y; i = (nsqrtasm(dx*dx+dy*dy)<<5); if (i == 0) return(sector[sectnum].floorz); j = dmulscale3(dx,day-wal->y,-dy,dax-wal->x); return(sector[sectnum].floorz+scale(sector[sectnum].floorheinum,j,i)); } // // getzsofslope // void getzsofslope(short sectnum, long dax, long day, long *ceilz, long *florz) { long dx, dy, i, j; walltype *wal, *wal2; sectortype *sec; sec = §or[sectnum]; *ceilz = sec->ceilingz; *florz = sec->floorz; if ((sec->ceilingstat|sec->floorstat)&2) { wal = &wall[sec->wallptr]; wal2 = &wall[wal->point2]; dx = wal2->x-wal->x; dy = wal2->y-wal->y; i = (nsqrtasm(dx*dx+dy*dy)<<5); if (i == 0) return; j = dmulscale3(dx,day-wal->y,-dy,dax-wal->x); if (sec->ceilingstat&2) *ceilz = (*ceilz)+scale(sec->ceilingheinum,j,i); if (sec->floorstat&2) *florz = (*florz)+scale(sec->floorheinum,j,i); } } // // alignceilslope // void alignceilslope(short dasect, long x, long y, long z) { long i, dax, day; walltype *wal; wal = &wall[sector[dasect].wallptr]; dax = wall[wal->point2].x-wal->x; day = wall[wal->point2].y-wal->y; i = (y-wal->y)*dax - (x-wal->x)*day; if (i == 0) return; sector[dasect].ceilingheinum = scale((z-sector[dasect].ceilingz)<<8, nsqrtasm(dax*dax+day*day),i); if (sector[dasect].ceilingheinum == 0) sector[dasect].ceilingstat &= ~2; else sector[dasect].ceilingstat |= 2; } // // alignflorslope // void alignflorslope(short dasect, long x, long y, long z) { long i, dax, day; walltype *wal; wal = &wall[sector[dasect].wallptr]; dax = wall[wal->point2].x-wal->x; day = wall[wal->point2].y-wal->y; i = (y-wal->y)*dax - (x-wal->x)*day; if (i == 0) return; sector[dasect].floorheinum = scale((z-sector[dasect].floorz)<<8, nsqrtasm(dax*dax+day*day),i); if (sector[dasect].floorheinum == 0) sector[dasect].floorstat &= ~2; else sector[dasect].floorstat |= 2; } // // loopnumofsector // long loopnumofsector(short sectnum, short wallnum) { long i, numloops, startwall, endwall; numloops = 0; startwall = sector[sectnum].wallptr; endwall = startwall + sector[sectnum].wallnum; for (i=startwall;i= startwall+danumwalls)) return; for (i=0;i 0) { j = 0; while (loopnumofsector(sectnum,j+startwall) != dagoalloop) j++; for (i=0;i= danumwalls) k -= danumwalls; Bmemcpy(&wall[startwall+i],&wall[numwalls+k],sizeof(walltype)); wall[startwall+i].point2 += danumwalls-startwall-j; if (wall[startwall+i].point2 >= danumwalls) wall[startwall+i].point2 -= danumwalls; wall[startwall+i].point2 += startwall; } newfirstwall += danumwalls-j; if (newfirstwall >= startwall+danumwalls) newfirstwall -= danumwalls; } for (i=0;i= numwallsofloop) k -= numwallsofloop; Bmemcpy(&wall[startwall+i],&wall[numwalls+k],sizeof(walltype)); wall[startwall+i].point2 += numwallsofloop-newfirstwall; if (wall[startwall+i].point2 >= numwallsofloop) wall[startwall+i].point2 -= numwallsofloop; wall[startwall+i].point2 += startwall; } for (i=startwall;i= 0) wall[wall[i].nextwall].nextwall = i; } // // drawline256 // void drawline256(long x1, long y1, long x2, long y2, char col) { long dx, dy, i, j, p, inc, plc, daend; col = palookup[0][col]; #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3) { palette_t p; if (gammabrightness) p = curpalette[col]; else { p.r = britable[curbrightness][ curpalette[col].r ]; p.g = britable[curbrightness][ curpalette[col].g ]; p.b = britable[curbrightness][ curpalette[col].b ]; } setpolymost2dview(); // JBF 20040205: more efficient setup //bglEnable(GL_BLEND); // When using line antialiasing, this is needed bglBegin(GL_LINES); bglColor4ub(p.r,p.g,p.b,255); bglVertex2f((float)x1/4096.0,(float)y1/4096.0); bglVertex2f((float)x2/4096.0,(float)y2/4096.0); bglEnd(); //bglDisable(GL_BLEND); return; } #endif dx = x2-x1; dy = y2-y1; if (dx >= 0) { if ((x1 >= wx2) || (x2 < wx1)) return; if (x1 < wx1) y1 += scale(wx1-x1,dy,dx), x1 = wx1; if (x2 > wx2) y2 += scale(wx2-x2,dy,dx), x2 = wx2; } else { if ((x2 >= wx2) || (x1 < wx1)) return; if (x2 < wx1) y2 += scale(wx1-x2,dy,dx), x2 = wx1; if (x1 > wx2) y1 += scale(wx2-x1,dy,dx), x1 = wx2; } if (dy >= 0) { if ((y1 >= wy2) || (y2 < wy1)) return; if (y1 < wy1) x1 += scale(wy1-y1,dx,dy), y1 = wy1; if (y2 > wy2) x2 += scale(wy2-y2,dx,dy), y2 = wy2; } else { if ((y2 >= wy2) || (y1 < wy1)) return; if (y2 < wy1) x2 += scale(wy1-y2,dx,dy), y2 = wy1; if (y1 > wy2) x1 += scale(wy2-y1,dx,dy), y1 = wy2; } if (klabs(dx) >= klabs(dy)) { if (dx == 0) return; if (dx < 0) { i = x1; x1 = x2; x2 = i; i = y1; y1 = y2; y2 = i; } inc = divscale12(dy,dx); plc = y1+mulscale12((2047-x1)&4095,inc); i = ((x1+2048)>>12); daend = ((x2+2048)>>12); begindrawing(); //{{{ for (;i>12); if ((j >= startumost[i]) && (j < startdmost[i])) drawpixel((void*)(frameplace+ylookup[j]+i),col); plc += inc; } enddrawing(); //}}} } else { if (dy < 0) { i = x1; x1 = x2; x2 = i; i = y1; y1 = y2; y2 = i; } inc = divscale12(dx,dy); plc = x1+mulscale12((2047-y1)&4095,inc); i = ((y1+2048)>>12); daend = ((y2+2048)>>12); begindrawing(); //{{{ p = ylookup[i]+frameplace; for (;i>12); if ((i >= startumost[j]) && (i < startdmost[j])) drawpixel((void*)(j+p),col); plc += inc; p += ylookup[1]; } enddrawing(); //}}} } } // // drawline16 // // JBF: Had to add extra tests to make sure x-coordinates weren't winding up -'ve // after clipping or crashes would ensue unsigned long drawlinepat = 0xffffffff; void drawline16(long x1, long y1, long x2, long y2, char col) { long i, dx, dy, p, pinc, d; unsigned long patc=0; dx = x2-x1; dy = y2-y1; if (dx >= 0) { if ((x1 >= xres) || (x2 < 0)) return; if (x1 < 0) { if (dy) y1 += scale(0-x1,dy,dx); x1 = 0; } if (x2 >= xres) { if (dy) y2 += scale(xres-1-x2,dy,dx); x2 = xres-1; } } else { if ((x2 >= xres) || (x1 < 0)) return; if (x2 < 0) { if (dy) y2 += scale(0-x2,dy,dx); x2 = 0; } if (x1 >= xres) { if (dy) y1 += scale(xres-1-x1,dy,dx); x1 = xres-1; } } if (dy >= 0) { if ((y1 >= ydim16) || (y2 < 0)) return; if (y1 < 0) { if (dx) x1 += scale(0-y1,dx,dy); y1 = 0; if (x1 < 0) x1 = 0; } if (y2 >= ydim16) { if (dx) x2 += scale(ydim16-1-y2,dx,dy); y2 = ydim16-1; if (x2 < 0) x2 = 0; } } else { if ((y2 >= ydim16) || (y1 < 0)) return; if (y2 < 0) { if (dx) x2 += scale(0-y2,dx,dy); y2 = 0; if (x2 < 0) x2 = 0; } if (y1 >= ydim16) { if (dx) x1 += scale(ydim16-1-y1,dx,dy); y1 = ydim16-1; if (x1 < 0) x1 = 0; } } dx = klabs(x2-x1)+1; dy = klabs(y2-y1)+1; if (dx >= dy) { if (x2 < x1) { i = x1; x1 = x2; x2 = i; i = y1; y1 = y2; y2 = i; } d = 0; if (y2 > y1) pinc = bytesperline; else pinc = -bytesperline; begindrawing(); //{{{ p = (y1*bytesperline)+x1+frameplace; if (dy == 0 && drawlinepat == 0xffffffff) { i = ((long)col<<24)|((long)col<<16)|((long)col<<8)|col; clearbufbyte((void *)p, dx, i); } else for (i=dx;i>0;i--) { if (drawlinepat & pow2long[(patc++)&31]) drawpixel((char *)p, col); d += dy; if (d >= dx) { d -= dx; p += pinc; } p++; } enddrawing(); //}}} return; } if (y2 < y1) { i = x1; x1 = x2; x2 = i; i = y1; y1 = y2; y2 = i; } d = 0; if (x2 > x1) pinc = 1; else pinc = -1; begindrawing(); //{{{ p = (y1*bytesperline)+x1+frameplace; for (i=dy;i>0;i--) { if (drawlinepat & pow2long[(patc++)&31]) drawpixel((char *)p, col); d += dx; if (d >= dy) { d -= dy; p += pinc; } p += bytesperline; } enddrawing(); //}}} } void drawcircle16(long x1, long y1, long r, char col) { #if 1 long p, xp, yp, xpbpl, ypbpl, d, de, dse, patc=0; if (r < 0) r = -r; if (x1+r < 0 || x1-r >= xres) return; if (y1+r < 0 || y1-r >= ydim16) return; /* * d * 6 | 7 * \ | / * 5 \|/ 8 * c----+----a * 4 /|\ 1 * / | \ * 3 | 2 * b */ xp = 0; yp = r; d = 1 - r; de = 2; dse = 5 - (r << 1); begindrawing(); p = (y1*bytesperline)+x1+frameplace; if (drawlinepat & pow2long[(patc++)&31]) { if ((unsigned long)y1 < (unsigned long)ydim16 && (unsigned long)(x1+r) < (unsigned long)xres ) drawpixel((char *)(p+r), col); // a if ((unsigned long)x1 < (unsigned long)xres && (unsigned long)(y1+r) < (unsigned long)ydim16) drawpixel((char *)(p+(r*bytesperline)), col); // b if ((unsigned long)y1 < (unsigned long)ydim16 && (unsigned long)(x1-r) < (unsigned long)xres ) drawpixel((char *)(p-r), col); // c if ((unsigned long)x1 < (unsigned long)xres && (unsigned long)(y1-r) < (unsigned long)ydim16) drawpixel((char *)(p-(r*bytesperline)), col); // d } while (yp > xp) { if (d < 0) { d += de; de += 2; dse += 2; xp++; } else { d += dse; de += 2; dse += 4; xp++; yp--; } ypbpl = yp*bytesperline; xpbpl = xp*bytesperline; if (drawlinepat & pow2long[(patc++)&31]) { if ((unsigned long)(x1+yp) < (unsigned long)xres && (unsigned long)(y1+xp) < (unsigned long)ydim16) drawpixel((char *)(p+yp+xpbpl), col); // 1 if ((unsigned long)(x1+xp) < (unsigned long)xres && (unsigned long)(y1+yp) < (unsigned long)ydim16) drawpixel((char *)(p+xp+ypbpl), col); // 2 if ((unsigned long)(x1-xp) < (unsigned long)xres && (unsigned long)(y1+yp) < (unsigned long)ydim16) drawpixel((char *)(p-xp+ypbpl), col); // 3 if ((unsigned long)(x1-yp) < (unsigned long)xres && (unsigned long)(y1+xp) < (unsigned long)ydim16) drawpixel((char *)(p-yp+xpbpl), col); // 4 if ((unsigned long)(x1-yp) < (unsigned long)xres && (unsigned long)(y1-xp) < (unsigned long)ydim16) drawpixel((char *)(p-yp-xpbpl), col); // 5 if ((unsigned long)(x1-xp) < (unsigned long)xres && (unsigned long)(y1-yp) < (unsigned long)ydim16) drawpixel((char *)(p-xp-ypbpl), col); // 6 if ((unsigned long)(x1+xp) < (unsigned long)xres && (unsigned long)(y1-yp) < (unsigned long)ydim16) drawpixel((char *)(p+xp-ypbpl), col); // 7 if ((unsigned long)(x1+yp) < (unsigned long)xres && (unsigned long)(y1-xp) < (unsigned long)ydim16) drawpixel((char *)(p+yp-xpbpl), col); // 8 } } enddrawing(); #else // JonoF's rough approximation of a circle long l,spx,spy,lpx,lpy,px,py; spx = lpx = x1+mulscale14(r,sintable[0]); spy = lpy = y1+mulscale14(r,sintable[512]); for (l=64;l<2048;l+=64) { px = x1+mulscale14(r,sintable[l]); py = y1+mulscale14(r,sintable[(l+512)&2047]); drawline16(lpx,lpy,px,py,col); lpx = px; lpy = py; } drawline16(lpx,lpy,spx,spy,col); #endif } // // qsetmode640350 // void qsetmode640350(void) { if (qsetmode != 350) { if (setvideomode(640, 350, 8, fullscreen) < 0) { //fprintf(stderr, "Couldn't set 640x350 video mode for some reason.\n"); return; } xdim = xres; ydim = yres; setvgapalette(); ydim16 = 350; halfxdim16 = 320; midydim16 = 146; begindrawing(); //{{{ clearbuf((char *)frameplace, (bytesperline*350L) >> 2, 0); enddrawing(); //}}} } qsetmode = 350; } // // qsetmode640480 // void qsetmode640480(void) { if (qsetmode != 480) { if (setvideomode(640, 480, 8, fullscreen) < 0) { //fprintf(stderr, "Couldn't set 640x480 video mode for some reason.\n"); return; } xdim = xres; ydim = yres; setvgapalette(); ydim16 = 336; halfxdim16 = 320; midydim16 = 200; begindrawing(); //{{{ clearbuf((char *)(frameplace + (336l*bytesperline)), (bytesperline*144L) >> 2, 0x08080808l); clearbuf((char *)frameplace, (bytesperline*336L) >> 2, 0L); enddrawing(); //}}} } qsetmode = 480; } // // qsetmodeany // void qsetmodeany(long daxdim, long daydim) { if (daxdim < 640) daxdim = 640; if (daydim < 480) daydim = 480; if (qsetmode != ((daxdim<<16)|(daydim&0xffff))) { if (setvideomode(daxdim, daydim, 8, fullscreen) < 0) return; xdim = xres; ydim = yres; setvgapalette(); ydim16 = yres - STATUS2DSIZ; halfxdim16 = xres >> 1; midydim16 = scale(200,yres,480); begindrawing(); //{{{ clearbuf((char *)(frameplace + (ydim16*bytesperline)), (bytesperline*STATUS2DSIZ) >> 2, 0x08080808l); clearbuf((char *)frameplace, (ydim16*bytesperline) >> 2, 0L); enddrawing(); //}}} } qsetmode = ((daxdim<<16)|(daydim&0xffff)); } // // clear2dscreen // void clear2dscreen(void) { int clearsz; begindrawing(); //{{{ if (qsetmode == 350) clearsz = 350; else { if (ydim16 <= yres-STATUS2DSIZ) clearsz = yres - STATUS2DSIZ; else clearsz = yres; } clearbuf((char *)frameplace, (bytesperline*clearsz) >> 2, 0); enddrawing(); //}}} } // // draw2dgrid // void draw2dgrid(long posxe, long posye, short ange, long zoome, short gride) { long i, xp1, yp1, xp2=0, yp2, tempy; if (gride > 0) { begindrawing(); //{{{ yp1 = midydim16-mulscale14(posye+editorgridextent,zoome); if (yp1 < 0) yp1 = 0; yp2 = midydim16-mulscale14(posye-editorgridextent,zoome); if (yp2 >= ydim16) yp2 = ydim16-1; if ((yp1 < ydim16) && (yp2 >= 0) && (yp2 >= yp1)) { xp1 = halfxdim16-mulscale14(posxe+editorgridextent,zoome); for (i=-editorgridextent;i<=editorgridextent;i+=(2048>>gride)) { xp2 = xp1; xp1 = halfxdim16-mulscale14(posxe-i,zoome); if (xp1 >= xdim) break; if (xp1 >= 0) { if (xp1 != xp2) { drawline16(xp1,yp1,xp1,yp2,8); } } } if ((i >= editorgridextent) && (xp1 < xdim)) xp2 = xp1; if ((xp2 >= 0) && (xp2 < xdim)) { drawline16(xp2,yp1,xp2,yp2,8); } } xp1 = mulscale14(posxe+editorgridextent,zoome); xp2 = mulscale14(posxe-editorgridextent,zoome); tempy = 0x80000000l; for (i=-editorgridextent;i<=editorgridextent;i+=(2048>>gride)) { yp1 = (((posye-i)*zoome)>>14); if (yp1 != tempy) { if ((yp1 > midydim16-ydim16) && (yp1 <= midydim16)) { drawline16(halfxdim16-xp1,midydim16-yp1,halfxdim16-xp2,midydim16-yp1,8); tempy = yp1; } } } enddrawing(); //}}} } } // // draw2dscreen // char spritecol2d[MAXTILES][2]; void draw2dscreen(long posxe, long posye, short ange, long zoome, short gride) { walltype *wal; long i, j, k, xp1, yp1, xp2, yp2, tempy, templong; char col, mask; if (qsetmode == 200) return; begindrawing(); //{{{ if (editstatus == 0) { faketimerhandler(); clear2dscreen(); faketimerhandler(); draw2dgrid(posxe,posye,ange,zoome,gride); } faketimerhandler(); for (i=numwalls-1,wal=&wall[i];i>=0;i--,wal--) { if (editstatus == 0) { if ((show2dwall[i>>3]&pow2char[i&7]) == 0) continue; j = wal->nextwall; if ((j >= 0) && (i > j)) if ((show2dwall[j>>3]&pow2char[j&7]) > 0) continue; } else { j = wal->nextwall; if ((j >= 0) && (i > j)) continue; } if (j < 0) { col = 7; if (i == linehighlight) if (totalclock & 16) col += (2<<2); } else { col = 4; if ((wal->cstat&1) != 0) col = 5; if ((i == linehighlight) || ((linehighlight >= 0) && (i == wall[linehighlight].nextwall))) if (totalclock & 16) col += (2<<2); } xp1 = mulscale14(wal->x-posxe,zoome); yp1 = mulscale14(wal->y-posye,zoome); xp2 = mulscale14(wall[wal->point2].x-posxe,zoome); yp2 = mulscale14(wall[wal->point2].y-posye,zoome); if ((wal->cstat&64) > 0) { if (klabs(xp2-xp1) >= klabs(yp2-yp1)) { drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp2,midydim16+yp2+1,col); drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp2,midydim16+yp2-1,col); } else { drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp2+1,midydim16+yp2,col); drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp2-1,midydim16+yp2,col); } col += 8; } drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp2,midydim16+yp2,col); if ((zoome >= 256) && (editstatus == 1)) if (((halfxdim16+xp1) >= 2) && ((halfxdim16+xp1) <= xdim-3)) if (((midydim16+yp1) >= 2) && ((midydim16+yp1) <= ydim16-3)) { char pointsize; col = 6; pointsize=2; if (i == pointhighlight || ((wall[i].x == wall[pointhighlight].x) && (wall[i].y == wall[pointhighlight].y))) { if (totalclock & 16) { col += (2<<2); // JBF 20040116: two braces is all this needed. man I'm a fool sometimes. pointsize += 1; } } else if ((highlightcnt > 0) && (editstatus == 1)) { if (show2dwall[i>>3]&pow2char[i&7]) if (totalclock & 16) { col += (2<<2); // JBF 20040116: two braces is all this needed. man I'm a fool sometimes. pointsize += 1; } } templong = ((midydim16+yp1)*bytesperline)+(halfxdim16+xp1)+frameplace; drawline16(halfxdim16+xp1-pointsize,midydim16+yp1+pointsize,halfxdim16+xp1+pointsize,midydim16+yp1+pointsize,col); drawline16(halfxdim16+xp1+pointsize,midydim16+yp1+pointsize,halfxdim16+xp1+pointsize,midydim16+yp1-pointsize,col); drawline16(halfxdim16+xp1+pointsize,midydim16+yp1-pointsize,halfxdim16+xp1-pointsize,midydim16+yp1-pointsize,col); drawline16(halfxdim16+xp1-pointsize,midydim16+yp1-pointsize,halfxdim16+xp1-pointsize,midydim16+yp1+pointsize,col); } } faketimerhandler(); if ((zoome >= 256) || (editstatus == 0)) for (i=0;i=0;j=nextspritesect[j]) if ((editstatus == 1) || (show2dsprite[j>>3]&pow2char[j&7])) { col = 3; if (spritecol2d[sprite[j].picnum][0]) col = spritecol2d[sprite[j].picnum][0]; if ((sprite[j].cstat&1) > 0) { col = 5; if (spritecol2d[sprite[j].picnum][1]) col = spritecol2d[sprite[j].picnum][1]; } if (editstatus == 1) { if (j+16384 == pointhighlight || ((sprite[j].x == sprite[pointhighlight-16384].x) && (sprite[j].y == sprite[pointhighlight-16384].y))) { if (totalclock & 32) col += (2<<2); } else if ((highlightcnt > 0) && (editstatus == 1)) { if (show2dsprite[j>>3]&pow2char[j&7]) if (totalclock & 32) col += (2<<2); } } xp1 = mulscale14(sprite[j].x-posxe,zoome); yp1 = mulscale14(sprite[j].y-posye,zoome); if (((halfxdim16+xp1) >= 4) && ((halfxdim16+xp1) <= xdim-6)) if (((midydim16+yp1) >= 4) && ((midydim16+yp1) <= ydim16-6)) { long temp; templong = ((midydim16+yp1)*bytesperline)+(halfxdim16+xp1)+frameplace; for (temp=0;temp<2;temp++) { drawpixel((char *)(templong+3+(bytesperline*temp)), col); drawpixel((char *)(templong-3-(bytesperline*temp)), col); drawpixel((char *)(templong-3+(bytesperline*temp)), col); drawpixel((char *)(templong+3-(bytesperline*temp)), col); } drawpixel((char *)(templong+2+(bytesperline*2)), col); drawpixel((char *)(templong-2-(bytesperline*2)), col); drawpixel((char *)(templong-2+(bytesperline*2)), col); drawpixel((char *)(templong+2-(bytesperline*2)), col); for (temp=0;temp<2;temp++) { drawpixel((char *)(templong+temp+(bytesperline*3)), col); drawpixel((char *)(templong-temp-(bytesperline*3)), col); drawpixel((char *)(templong-temp+(bytesperline*3)), col); drawpixel((char *)(templong+temp-(bytesperline*3)), col); } xp2 = mulscale11(sintable[(sprite[j].ang+2560)&2047],zoome) / 768; yp2 = mulscale11(sintable[(sprite[j].ang+2048)&2047],zoome) / 768; drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1+xp2,midydim16+yp1+yp2,col); if ((sprite[j].cstat&256) > 0) { if (((sprite[j].ang+256)&512) == 0) { drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp1+xp2,midydim16+yp1+yp2+1,col); drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp1+xp2,midydim16+yp1+yp2-1,col); drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp1+xp2-1,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp1+xp2+1,midydim16+yp1+yp2,col); } else { drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp1+xp2,midydim16+yp1+yp2+1,col); drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp1+xp2,midydim16+yp1+yp2-1,col); drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp1+xp2-1,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp1+xp2+1,midydim16+yp1+yp2,col); } if ((sprite[j].cstat&32) > 0) { long fx = mulscale6(tilesizx[sprite[j].picnum], sprite[j].xrepeat); long fy = mulscale6(tilesizy[sprite[j].picnum], sprite[j].yrepeat); long co[4][2], ii; long sinang = sintable[(sprite[j].ang+512+1024)&2047]; long cosang = sintable[(sprite[j].ang+1024)&2047]; long r,s; fx = mulscale10(fx,zoome) >> 1; fy = mulscale10(fy,zoome) >> 1; co[0][0] = -fx; co[0][1] = -fy; co[1][0] = fx; co[1][1] = -fy; co[2][0] = fx; co[2][1] = fy; co[3][0] = -fx; co[3][1] = fy; for (ii=0;ii<4;ii++) { r = mulscale14(cosang,co[ii][0]) - mulscale14(sinang,co[ii][1]); s = mulscale14(sinang,co[ii][0]) + mulscale14(cosang,co[ii][1]); co[ii][0] = r; co[ii][1] = s; } drawlinepat = 0xcfcfcfcf; for (ii=0;ii<4;ii++) { drawline16(halfxdim16 + xp1 + co[ii][0], midydim16 + yp1 - co[ii][1], halfxdim16 + xp1 + co[(ii+1)&3][0], midydim16 + yp1 - co[(ii+1)&3][1], col); drawline16(halfxdim16 + xp1 + co[ii][0], midydim16 + yp1 - co[ii][1] + 1, halfxdim16 + xp1 + co[(ii+1)&3][0], midydim16 + yp1 - co[(ii+1)&3][1] + 1, col); drawline16(halfxdim16 + xp1 + co[ii][0], midydim16 + yp1 - co[ii][1] - 1, halfxdim16 + xp1 + co[(ii+1)&3][0], midydim16 + yp1 - co[(ii+1)&3][1] - 1, col); drawline16(halfxdim16 + xp1 + co[ii][0] + 1, midydim16 + yp1 - co[ii][1], halfxdim16 + xp1 + co[(ii+1)&3][0] + 1, midydim16 + yp1 - co[(ii+1)&3][1], col); drawline16(halfxdim16 + xp1 + co[ii][0] - 1, midydim16 + yp1 - co[ii][1], halfxdim16 + xp1 + co[(ii+1)&3][0] - 1, midydim16 + yp1 - co[(ii+1)&3][1], col); drawline16(halfxdim16 + xp1, midydim16 + yp1, halfxdim16 + xp1 + co[(ii+1)&3][0], midydim16 + yp1 - co[(ii+1)&3][1], col); } drawlinepat = 0xffffffff; } else if ((sprite[j].cstat&16) > 0) { long fx = mulscale6(tilesizx[sprite[j].picnum], sprite[j].xrepeat); xp2 = mulscale11(sintable[(sprite[j].ang+2560)&2047],zoome) / 6144; yp2 = mulscale11(sintable[(sprite[j].ang+2048)&2047],zoome) / 6144; if (((sprite[j].ang+256)&512) == 0) { if (!(sprite[j].cstat&64)) { drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp1-xp2,midydim16+yp1-yp2-1,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1-xp2,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp1-xp2,midydim16+yp1-yp2+1,col); } drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp1+xp2,midydim16+yp1+yp2-1,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1+xp2,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp1+xp2,midydim16+yp1+yp2+1,col); xp2 = mulscale13(sintable[(sprite[j].ang+1024)&2047],zoome) * fx / 4096; yp2 = mulscale13(sintable[(sprite[j].ang+512)&2047],zoome) * fx / 4096; drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp1+xp2+1,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp1-xp2-1,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp1+xp2-1,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp1-xp2+1,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1-xp2,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1+xp2,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp1+xp2,midydim16+yp1+yp2-1,col); drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp1-xp2,midydim16+yp1-yp2+1,col); drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp1+xp2,midydim16+yp1+yp2+1,col); drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp1-xp2,midydim16+yp1-yp2-1,col); } else { if (!(sprite[j].cstat&64)) { drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp1-xp2-1,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1-xp2,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp1-xp2+1,midydim16+yp1-yp2,col); } drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp1+xp2-1,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1+xp2,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp1+xp2+1,midydim16+yp1+yp2,col); xp2 = mulscale13(sintable[(sprite[j].ang+1024)&2047],zoome) * fx / 4096; yp2 = mulscale13(sintable[(sprite[j].ang+512)&2047],zoome) * fx / 4096; drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp1+xp2+1,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp1-xp2-1,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1-1,midydim16+yp1,halfxdim16+xp1+xp2-1,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1+1,midydim16+yp1,halfxdim16+xp1-xp2+1,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1-xp2,midydim16+yp1-yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1+xp2,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp1+xp2,midydim16+yp1+yp2-1,col); drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp1-xp2,midydim16+yp1-yp2+1,col); drawline16(halfxdim16+xp1,midydim16+yp1+1,halfxdim16+xp1+xp2,midydim16+yp1+yp2+1,col); drawline16(halfxdim16+xp1,midydim16+yp1-1,halfxdim16+xp1-xp2,midydim16+yp1-yp2-1,col); } } col += 8; } else if ((sprite[j].cstat&16) > 0) { long fx = mulscale6(tilesizx[sprite[j].picnum], sprite[j].xrepeat); xp2 = mulscale11(sintable[(sprite[j].ang+2560)&2047],zoome) / 6144; yp2 = mulscale11(sintable[(sprite[j].ang+2048)&2047],zoome) / 6144; drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1+xp2,midydim16+yp1+yp2,col); if (!(sprite[j].cstat&64)) drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1-xp2,midydim16+yp1-yp2,col); xp2 = mulscale13(sintable[(sprite[j].ang+1024)&2047],zoome) * fx / 4096; yp2 = mulscale13(sintable[(sprite[j].ang+512)&2047],zoome) * fx / 4096; drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1+xp2,midydim16+yp1+yp2,col); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+xp1-xp2,midydim16+yp1-yp2,col); col += 8; } else if ((sprite[j].cstat&32) > 0) { long fx = mulscale6(tilesizx[sprite[j].picnum], sprite[j].xrepeat); long fy = mulscale6(tilesizy[sprite[j].picnum], sprite[j].yrepeat); long co[4][2], ii; long sinang = sintable[(sprite[j].ang+512+1024)&2047]; long cosang = sintable[(sprite[j].ang+1024)&2047]; long r,s; fx = mulscale10(fx,zoome) >> 1; fy = mulscale10(fy,zoome) >> 1; co[0][0] = -fx; co[0][1] = -fy; co[1][0] = fx; co[1][1] = -fy; co[2][0] = fx; co[2][1] = fy; co[3][0] = -fx; co[3][1] = fy; for (ii=0;ii<4;ii++) { r = mulscale14(cosang,co[ii][0]) - mulscale14(sinang,co[ii][1]); s = mulscale14(sinang,co[ii][0]) + mulscale14(cosang,co[ii][1]); co[ii][0] = r; co[ii][1] = s; } drawlinepat = 0xcfcfcfcf; for (ii=0;ii<4;ii++) { drawline16(halfxdim16 + xp1 + co[ii][0], midydim16 + yp1 - co[ii][1], halfxdim16 + xp1 + co[(ii+1)&3][0], midydim16 + yp1 - co[(ii+1)&3][1], col); drawline16(halfxdim16 + xp1, midydim16 + yp1, halfxdim16 + xp1 + co[(ii+1)&3][0], midydim16 + yp1 - co[(ii+1)&3][1], col); } drawlinepat = 0xffffffff; } } } faketimerhandler(); xp1 = mulscale11(sintable[(ange+2560)&2047],zoome) / 768; //Draw white arrow yp1 = mulscale11(sintable[(ange+2048)&2047],zoome) / 768; drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16-xp1,midydim16-yp1,15); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16+yp1,midydim16-xp1,15); drawline16(halfxdim16+xp1,midydim16+yp1,halfxdim16-yp1,midydim16+xp1,15); enddrawing(); //}}} } // // printext16 // void printext16(long xpos, long ypos, short col, short backcol, char *name, char fontsize) { long stx, i, x, y, charxsiz; char *fontptr, *letptr, *ptr; stx = xpos; if (fontsize) { fontptr = smalltextfont; charxsiz = 4; } else { fontptr = textfont; charxsiz = 8; } begindrawing(); //{{{ for (i=0;name[i];i++) { letptr = &fontptr[name[i]<<3]; ptr = (char *)(bytesperline*(ypos+7)+(stx-fontsize)+frameplace); for (y=7;y>=0;y--) { for (x=charxsiz-1;x>=0;x--) { if (letptr[y]&pow2char[7-fontsize-x]) ptr[x] = (char)col; else if (backcol >= 0) ptr[x] = (char)backcol; } ptr -= bytesperline; } stx += charxsiz; } enddrawing(); //}}} } // // printext256 // void printext256(long xpos, long ypos, short col, short backcol, char *name, char fontsize) { long stx, i, x, y, charxsiz; char *fontptr, *letptr, *ptr; stx = xpos; if (fontsize) { fontptr = smalltextfont; charxsiz = 4; } else { fontptr = textfont; charxsiz = 8; } #if defined(POLYMOST) && defined(USE_OPENGL) if (!polymost_printext256(xpos,ypos,col,backcol,name,fontsize)) return; if (rendmode >= 3 && qsetmode == 200) { long xx, yy; int lc=-1; palette_t p,b; if (gammabrightness) { p = curpalette[col]; b = curpalette[backcol]; } else { p.r = britable[curbrightness][ curpalette[col].r ]; p.g = britable[curbrightness][ curpalette[col].g ]; p.b = britable[curbrightness][ curpalette[col].b ]; b.r = britable[curbrightness][ curpalette[backcol].r ]; b.g = britable[curbrightness][ curpalette[backcol].g ]; b.b = britable[curbrightness][ curpalette[backcol].b ]; } setpolymost2dview(); bglDisable(GL_ALPHA_TEST); bglDepthMask(GL_FALSE); // disable writing to the z-buffer bglBegin(GL_POINTS); for (i=0;name[i];i++) { letptr = &fontptr[name[i]<<3]; xx = stx-fontsize; yy = ypos+7 + 2; //+1 is hack! for (y=7;y>=0;y--) { for (x=charxsiz-1;x>=0;x--) { if (letptr[y]&pow2char[7-fontsize-x]) { if (lc!=col) bglColor4ub(p.r,p.g,p.b,255); lc = col; bglVertex2i(xx+x,yy); } else if (backcol >= 0) { if (lc!=backcol) bglColor4ub(b.r,b.g,b.b,255); lc = backcol; bglVertex2i(xx+x,yy); } } yy--; } stx += charxsiz; } bglEnd(); bglDepthMask(GL_TRUE); // re-enable writing to the z-buffer return; } #endif begindrawing(); //{{{ for (i=0;name[i];i++) { letptr = &fontptr[name[i]<<3]; ptr = (char *)(ylookup[ypos+7]+(stx-fontsize)+frameplace); for (y=7;y>=0;y--) { for (x=charxsiz-1;x>=0;x--) { if (letptr[y]&pow2char[7-fontsize-x]) ptr[x] = (char)col; else if (backcol >= 0) ptr[x] = (char)backcol; } ptr -= ylookup[1]; } stx += charxsiz; } enddrawing(); //}}} } // // screencapture // long screencapture_tga(char *filename, char inverseit) { long i,j; char *ptr, head[18] = { 0,1,1,0,0,0,1,24,0,0,0,0,0/*wlo*/,0/*whi*/,0/*hlo*/,0/*hhi*/,8,0 }; //char palette[4*256]; char *fn = Bstrdup(filename), *inversebuf, c; BFILE *fil; do { // JBF 2004022: So we don't overwrite existing screenshots if (capturecount > 9999) return -1; i = Bstrrchr(fn,'.')-fn-4; fn[i++] = ((capturecount/1000)%10)+48; fn[i++] = ((capturecount/100)%10)+48; fn[i++] = ((capturecount/10)%10)+48; fn[i++] = (capturecount%10)+48; i++; fn[i++] = 't'; fn[i++] = 'g'; fn[i++] = 'a'; if ((fil = Bfopen(fn,"rb")) == NULL) break; Bfclose(fil); capturecount++; } while (1); fil = Bfopen(fn,"wb"); if (fil == NULL) { Bfree(fn); return -1; } #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3 && qsetmode == 200) { head[1] = 0; // no colourmap head[2] = 2; // uncompressed truecolour head[3] = 0; // (low) first colourmap index head[4] = 0; // (high) first colourmap index head[5] = 0; // (low) number colourmap entries head[6] = 0; // (high) number colourmap entries head[7] = 0; // colourmap entry size head[16] = 24; // 24 bits per pixel } #endif head[12] = xdim & 0xff; head[13] = (xdim >> 8) & 0xff; head[14] = ydim & 0xff; head[15] = (ydim >> 8) & 0xff; Bfwrite(head, 18, 1, fil); begindrawing(); //{{{ ptr = (char *)frameplace; // palette first #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode < 3 || (rendmode >= 3 && qsetmode != 200)) { #endif //getpalette(0,256,palette); for (i=0; i<256; i++) { Bfputc(curpalettefaded[i].b, fil); // b Bfputc(curpalettefaded[i].g, fil); // g Bfputc(curpalettefaded[i].r, fil); // r } #if defined(POLYMOST) && defined(USE_OPENGL) } #endif // targa renders bottom to top, from left to right if (inverseit && qsetmode != 200) { inversebuf = (char *)kmalloc(bytesperline); if (inversebuf) { for (i=ydim-1; i>=0; i--) { copybuf(ptr+i*bytesperline, inversebuf, xdim >> 2); for (j=0; j < (bytesperline>>2); j++) ((long *)inversebuf)[j] ^= 0x0f0f0f0fL; Bfwrite(inversebuf, xdim, 1, fil); } kfree(inversebuf); } } else { #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3 && qsetmode == 200) { // 24bit inversebuf = (char *)kmalloc(xdim*ydim*3); if (inversebuf) { bglReadPixels(0,0,xdim,ydim,GL_RGB,GL_UNSIGNED_BYTE,inversebuf); j = xdim*ydim*3; for (i=0; i=0; i--) Bfwrite(ptr+i*bytesperline, xdim, 1, fil); #if defined(POLYMOST) && defined(USE_OPENGL) } #endif } enddrawing(); //}}} Bfclose(fil); OSD_Printf("Saved screenshot to %s\n", fn); Bfree(fn); capturecount++; return(0); } // PCX is nasty, which is why I've lifted these functions from the PCX spec by ZSoft static int writepcxbyte(char colour, unsigned char count, BFILE *fp) { if (!count) return 0; if (count == 1 && (colour & 0xc0) != 0xc0) { Bfputc(colour, fp); return 1; } else { Bfputc(0xc0 | count, fp); Bfputc(colour, fp); return 2; } } static void writepcxline(char *buf, long bytes, long step, BFILE *fp) { char ths, last; int srcIndex, i; unsigned char runCount; runCount = 1; last = *buf; for (srcIndex=1; srcIndex 9999) return -1; i = Bstrrchr(fn,'.')-fn-4; fn[i++] = ((capturecount/1000)%10)+48; fn[i++] = ((capturecount/100)%10)+48; fn[i++] = ((capturecount/10)%10)+48; fn[i++] = (capturecount%10)+48; i++; fn[i++] = 'p'; fn[i++] = 'c'; fn[i++] = 'x'; if ((fil = Bfopen(fn,"rb")) == NULL) break; Bfclose(fil); capturecount++; } while (1); fil = Bfopen(fn,"wb"); if (fil == NULL) { Bfree(fn); return -1; } memset(head,0,128); head[0] = 10; head[1] = 5; head[2] = 1; head[3] = 8; head[12] = 72; head[13] = 0; head[14] = 72; head[15] = 0; head[65] = 1; // 8-bit head[68] = 1; #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3 && qsetmode == 200) { head[65] = 3; // 24-bit } #endif head[8] = (xdim-1) & 0xff; head[9] = ((xdim-1) >> 8) & 0xff; head[10] = (ydim-1) & 0xff; head[11] = ((ydim-1) >> 8) & 0xff; bpl = xdim + (xdim&1); head[66] = bpl & 0xff; head[67] = (bpl >> 8) & 0xff; Bfwrite(head, 128, 1, fil); begindrawing(); //{{{ ptr = (char *)frameplace; // targa renders bottom to top, from left to right if (inverseit && qsetmode != 200) { inversebuf = (char *)kmalloc(bytesperline); if (inversebuf) { for (i=0; i> 2); for (j=0; j < (bytesperline>>2); j++) ((long *)inversebuf)[j] ^= 0x0f0f0f0fL; writepcxline(inversebuf, xdim, 1, fil); } kfree(inversebuf); } } else { #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode >= 3 && qsetmode == 200) { // 24bit inversebuf = (char *)kmalloc(xdim*ydim*3); if (inversebuf) { bglReadPixels(0,0,xdim,ydim,GL_RGB,GL_UNSIGNED_BYTE,inversebuf); for (i=ydim-1; i>=0; i--) { writepcxline(inversebuf+i*xdim*3, xdim, 3, fil); writepcxline(inversebuf+i*xdim*3+1, xdim, 3, fil); writepcxline(inversebuf+i*xdim*3+2, xdim, 3, fil); } kfree(inversebuf); } } else { #endif for (i=0; i= 3 && qsetmode != 200)) { #endif //getpalette(0,256,palette); Bfputc(12,fil); for (i=0; i<256; i++) { Bfputc(curpalettefaded[i].r, fil); // b Bfputc(curpalettefaded[i].g, fil); // g Bfputc(curpalettefaded[i].b, fil); // r } #if defined(POLYMOST) && defined(USE_OPENGL) } #endif Bfclose(fil); OSD_Printf("Saved screenshot to %s\n", fn); Bfree(fn); capturecount++; return(0); } long screencapture(char *filename, char inverseit) { if (captureformat == 0) return screencapture_tga(filename,inverseit); else return screencapture_pcx(filename,inverseit); } // // setrendermode // int setrendermode(int renderer) { #ifdef POLYMOST int method; if (bpp == 8) { if (renderer < 0) renderer = 0; else if (renderer > 2) renderer = 2; } else { if (renderer < 3) renderer = 3; else if (renderer > 4) renderer = 4; } if (renderer == 4) polymer_init(); rendmode = renderer; #endif return 0; } // // getrendermode // int getrendermode(void) { #ifndef POLYMOST return 0; #else return rendmode; #endif } // // setrollangle // void setrollangle(long rolla) { #ifdef POLYMOST if (rolla == 0) gtang = 0.0; else gtang = PI * (double)rolla / 1024.0; #endif } // // invalidatetile // pal: pass -1 to invalidate all palettes for the tile, or >=0 for a particular palette // how: pass -1 to invalidate all instances of the tile in texture memory, or a bitfield // bit 0: opaque or masked (non-translucent) texture, using repeating // bit 1: ignored // bit 2: ignored (33% translucence, using repeating) // bit 3: ignored (67% translucence, using repeating) // bit 4: opaque or masked (non-translucent) texture, using clamping // bit 5: ignored // bit 6: ignored (33% translucence, using clamping) // bit 7: ignored (67% translucence, using clamping) // clamping is for sprites, repeating is for walls // void invalidatetile(short tilenume, long pal, long how) { #if defined(POLYMOST) && defined(USE_OPENGL) int numpal, firstpal, np; int hp; if (rendmode < 3) return; if (pal < 0) { numpal = MAXPALOOKUPS; firstpal = 0; } else { numpal = 1; firstpal = pal % MAXPALOOKUPS; } for (hp = 0; hp < 8; hp+=4) { if (!(how & pow2long[hp])) continue; for (np = firstpal; np < firstpal+numpal; np++) { gltexinvalidate(tilenume, np, hp); } } #endif } // // setpolymost2dview // Sets OpenGL for 2D drawing // void setpolymost2dview(void) { #if defined(POLYMOST) && defined(USE_OPENGL) if (rendmode < 3) return; if (gloy1 != -1) { bglViewport(0,0,xres,yres); bglMatrixMode(GL_PROJECTION); bglLoadIdentity(); bglOrtho(0,xres,yres,0,-1,1); bglMatrixMode(GL_MODELVIEW); bglLoadIdentity(); } gloy1 = -1; bglDisable(GL_DEPTH_TEST); bglDisable(GL_TEXTURE_2D); bglDisable(GL_BLEND); #endif } /* * vim:ts=8: */