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qzdoom-gpl/src/p_buildmap.cpp
Christoph Oelckers bf4e17703d - Fixed: Dehacked string replacement did not check the clusters' finaleflats. 
- Changed the definition of several typedef'd structs so that they are
  properly named.
- Limited DEHSUPP lump lookup to search zdoom.pk3 only. It will no longer
  be possible to load DEHSUPP lumps from user WADs.
- Brought back the text-based DEHSUPP parser and changed it to be able to 
  reference states by label. Also changed label names of 
  DoomUnusedStates and added proper labels to all states that were
  previously forced to be the first state of an actor so that the old
  (limited) method could access them. This was done to address the following
  bug:
- Fixed: The player's death states calling A_PlayerSkinCheck should not be
  part of the state set that is accessible by Dehacked. These will produce
  error messages when mapped to non-players.

SVN r1512 (trunk)
2009-03-28 11:49:44 +00:00

821 lines
24 KiB
C++
Raw Blame History

//**************************************************************************
//**
//** TEMPLATE.C
//**
//**************************************************************************
// HEADER FILES ------------------------------------------------------------
#include "p_local.h"
#include "m_swap.h"
#include "v_palette.h"
#include "w_wad.h"
#include "templates.h"
#include "r_sky.h"
#include "r_main.h"
#include "r_defs.h"
#include "p_setup.h"
#include "g_level.h"
// MACROS ------------------------------------------------------------------
//#define SHADE2LIGHT(s) (clamp (160-2*(s), 0, 255))
#define SHADE2LIGHT(s) (clamp (255-2*s, 0, 255))
// TYPES -------------------------------------------------------------------
//ceilingstat/floorstat:
// bit 0: 1 = parallaxing, 0 = not "P"
// bit 1: 1 = groudraw, 0 = not
// bit 2: 1 = swap x&y, 0 = not "F"
// bit 3: 1 = double smooshiness "E"
// bit 4: 1 = x-flip "F"
// bit 5: 1 = y-flip "F"
// bit 6: 1 = Align texture to first wall of sector "R"
// bits 7-8: "T"
// 00 = normal floors
// 01 = masked floors
// 10 = transluscent masked floors
// 11 = reverse transluscent masked floors
// bits 9-15: reserved
//40 bytes
struct sectortype
{
SWORD wallptr, wallnum;
SDWORD ceilingz, floorz;
SWORD ceilingstat, floorstat;
SWORD ceilingpicnum, ceilingheinum;
SBYTE ceilingshade;
BYTE ceilingpal, ceilingxpanning, ceilingypanning;
SWORD floorpicnum, floorheinum;
SBYTE floorshade;
BYTE floorpal, floorxpanning, floorypanning;
BYTE visibility, filler;
SWORD lotag, hitag, extra;
};
//cstat:
// bit 0: 1 = Blocking wall (use with clipmove, getzrange) "B"
// bit 1: 1 = bottoms of invisible walls swapped, 0 = not "2"
// bit 2: 1 = align picture on bottom (for doors), 0 = top "O"
// bit 3: 1 = x-flipped, 0 = normal "F"
// bit 4: 1 = masking wall, 0 = not "M"
// bit 5: 1 = 1-way wall, 0 = not "1"
// bit 6: 1 = Blocking wall (use with hitscan / cliptype 1) "H"
// bit 7: 1 = Transluscence, 0 = not "T"
// bit 8: 1 = y-flipped, 0 = normal "F"
// bit 9: 1 = Transluscence reversing, 0 = normal "T"
// bits 10-15: reserved
//32 bytes
struct walltype
{
SDWORD x, y;
SWORD point2, nextwall, nextsector, cstat;
SWORD picnum, overpicnum;
SBYTE shade;
BYTE pal, xrepeat, yrepeat, xpanning, ypanning;
SWORD lotag, hitag, extra;
};
//cstat:
// bit 0: 1 = Blocking sprite (use with clipmove, getzrange) "B"
// bit 1: 1 = transluscence, 0 = normal "T"
// bit 2: 1 = x-flipped, 0 = normal "F"
// bit 3: 1 = y-flipped, 0 = normal "F"
// bits 5-4: 00 = FACE sprite (default) "R"
// 01 = WALL sprite (like masked walls)
// 10 = FLOOR sprite (parallel to ceilings&floors)
// bit 6: 1 = 1-sided sprite, 0 = normal "1"
// bit 7: 1 = Real centered centering, 0 = foot center "C"
// bit 8: 1 = Blocking sprite (use with hitscan / cliptype 1) "H"
// bit 9: 1 = Transluscence reversing, 0 = normal "T"
// bits 10-14: reserved
// bit 15: 1 = Invisible sprite, 0 = not invisible
//44 bytes
struct spritetype
{
SDWORD x, y, z;
SWORD cstat, picnum;
SBYTE shade;
BYTE pal, clipdist, filler;
BYTE xrepeat, yrepeat;
SBYTE xoffset, yoffset;
SWORD sectnum, statnum;
SWORD ang, owner, xvel, yvel, zvel;
SWORD lotag, hitag, extra;
};
struct SlopeWork
{
walltype *wal;
walltype *wal2;
long dx, dy, i, x[3], y[3], z[3];
long heinum;
};
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
void P_AdjustLine (line_t *line);
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
static bool P_LoadBloodMap (BYTE *data, size_t len, FMapThing **sprites, int *numsprites);
static void LoadSectors (sectortype *bsectors);
static void LoadWalls (walltype *walls, int numwalls, sectortype *bsectors);
static int LoadSprites (spritetype *sprites, int numsprites, sectortype *bsectors, FMapThing *mapthings);
static vertex_t *FindVertex (fixed_t x, fixed_t y);
static void CreateStartSpot (fixed_t *pos, FMapThing *start);
static void CalcPlane (SlopeWork &slope, secplane_t &plane);
static void Decrypt (void *to, const void *from, int len, int key);
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
// PUBLIC DATA DEFINITIONS -------------------------------------------------
// PRIVATE DATA DEFINITIONS ------------------------------------------------
// CODE --------------------------------------------------------------------
bool P_IsBuildMap(MapData *map)
{
DWORD len = map->Size(ML_LABEL);
if (len < 4) return false;
BYTE *data = new BYTE[len];
map->Seek(ML_LABEL);
map->Read(ML_LABEL, data);
// Check for a Blood map.
if (*(DWORD *)data == MAKE_ID('B','L','M','\x1a'))
{
delete[] data;
return true;
}
numsectors = LittleShort(*(WORD *)(data + 20));
int numwalls;
if (len < 26 + numsectors*sizeof(sectortype) ||
(numwalls = LittleShort(*(WORD *)(data + 22 + numsectors*sizeof(sectortype))),
len < 24 + numsectors*sizeof(sectortype) + numwalls*sizeof(walltype)) ||
LittleLong(*(DWORD *)data) != 7 ||
LittleShort(*(WORD *)(data + 16)) >= 2048)
{ // Can't possibly be a version 7 BUILD map
delete[] data;
return false;
}
delete[] data;
return true;
}
//==========================================================================
//
// P_LoadBuildMap
//
//==========================================================================
bool P_LoadBuildMap (BYTE *data, size_t len, FMapThing **sprites, int *numspr)
{
if (len < 26)
{
return false;
}
// Check for a Blood map.
if (*(DWORD *)data == MAKE_ID('B','L','M','\x1a'))
{
return P_LoadBloodMap (data, len, sprites, numspr);
}
numsectors = LittleShort(*(WORD *)(data + 20));
int numwalls;
int numsprites;
if (len < 26 + numsectors*sizeof(sectortype) ||
(numwalls = LittleShort(*(WORD *)(data + 22 + numsectors*sizeof(sectortype))),
len < 24 + numsectors*sizeof(sectortype) + numwalls*sizeof(walltype)) ||
LittleLong(*(DWORD *)data) != 7 ||
LittleShort(*(WORD *)(data + 16)) >= 2048)
{ // Can't possibly be a version 7 BUILD map
return false;
}
LoadSectors ((sectortype *)(data + 22));
LoadWalls ((walltype *)(data + 24 + numsectors*sizeof(sectortype)), numwalls,
(sectortype *)(data + 22));
numsprites = *(WORD *)(data + 24 + numsectors*sizeof(sectortype) + numwalls*sizeof(walltype));
*sprites = new FMapThing[numsprites + 1];
CreateStartSpot ((fixed_t *)(data + 4), *sprites);
*numspr = 1 + LoadSprites ((spritetype *)(data + 26 + numsectors*sizeof(sectortype) + numwalls*sizeof(walltype)),
numsprites, (sectortype *)(data + 22), *sprites + 1);
return true;
}
//==========================================================================
//
// P_LoadBloodMap
//
//==========================================================================
static bool P_LoadBloodMap (BYTE *data, size_t len, FMapThing **mapthings, int *numspr)
{
BYTE infoBlock[37];
int mapver = data[5];
DWORD matt;
int numRevisions, numWalls, numsprites, skyLen;
int i;
int k;
if (mapver != 6 && mapver != 7)
{
return false;
}
matt = *(DWORD *)(data + 28);
if (matt != 0 &&
matt != MAKE_ID('M','a','t','t') &&
matt != MAKE_ID('t','t','a','M'))
{
Decrypt (infoBlock, data + 6, 37, 0x7474614d);
}
else
{
memcpy (infoBlock, data + 6, 37);
}
numRevisions = *(DWORD *)(infoBlock + 27);
numsectors = *(WORD *)(infoBlock + 31);
numWalls = *(WORD *)(infoBlock + 33);
numsprites = *(WORD *)(infoBlock + 35);
skyLen = 2 << *(WORD *)(infoBlock + 16);
if (mapver == 7)
{
// Version 7 has some extra stuff after the info block. This
// includes a copyright, and I have no idea what the rest of
// it is.
data += 171;
}
else
{
data += 43;
}
// Skip the sky info.
data += skyLen;
sectortype *bsec = new sectortype[numsectors];
walltype *bwal = new walltype[numWalls];
spritetype *bspr = new spritetype[numsprites];
// Read sectors
k = numRevisions * sizeof(sectortype);
for (i = 0; i < numsectors; ++i)
{
if (mapver == 7)
{
Decrypt (&bsec[i], data, sizeof(sectortype), k);
}
else
{
memcpy (&bsec[i], data, sizeof(sectortype));
}
data += sizeof(sectortype);
if (bsec[i].extra > 0) // skip Xsector
{
data += 60;
}
}
// Read walls
k |= 0x7474614d;
for (i = 0; i < numWalls; ++i)
{
if (mapver == 7)
{
Decrypt (&bwal[i], data, sizeof(walltype), k);
}
else
{
memcpy (&bwal[i], data, sizeof(walltype));
}
data += sizeof(walltype);
if (bwal[i].extra > 0) // skip Xwall
{
data += 24;
}
}
// Read sprites
k = (numRevisions * sizeof(spritetype)) | 0x7474614d;
for (i = 0; i < numsprites; ++i)
{
if (mapver == 7)
{
Decrypt (&bspr[i], data, sizeof(spritetype), k);
}
else
{
memcpy (&bspr[i], data, sizeof(spritetype));
}
data += sizeof(spritetype);
if (bspr[i].extra > 0) // skip Xsprite
{
data += 56;
}
}
// Now convert to Doom format, since we've extracted all the standard
// BUILD info from the map we need. (Sprites are ignored.)
LoadSectors (bsec);
LoadWalls (bwal, numWalls, bsec);
*mapthings = new FMapThing[numsprites + 1];
CreateStartSpot ((fixed_t *)infoBlock, *mapthings);
*numspr = 1 + LoadSprites (bspr, numsprites, bsec, *mapthings + 1);
delete[] bsec;
delete[] bwal;
delete[] bspr;
return true;
}
//==========================================================================
//
// LoadSectors
//
//==========================================================================
static void LoadSectors (sectortype *bsec)
{
FDynamicColormap *map = GetSpecialLights (PalEntry (255,255,255), level.fadeto, 0);
sector_t *sec;
char tnam[9];
sec = sectors = new sector_t[numsectors];
memset (sectors, 0, sizeof(sector_t)*numsectors);
for (int i = 0; i < numsectors; ++i, ++bsec, ++sec)
{
bsec->wallptr = WORD(bsec->wallptr);
bsec->wallnum = WORD(bsec->wallnum);
bsec->ceilingstat = WORD(bsec->ceilingstat);
bsec->floorstat = WORD(bsec->floorstat);
sec->SetPlaneTexZ(sector_t::floor, -(LittleLong(bsec->floorz) << 8));
sec->floorplane.d = -sec->GetPlaneTexZ(sector_t::floor);
sec->floorplane.c = FRACUNIT;
sec->floorplane.ic = FRACUNIT;
mysnprintf (tnam, countof(tnam), "BTIL%04d", LittleShort(bsec->floorpicnum));
sec->SetTexture(sector_t::floor, TexMan.GetTexture (tnam, FTexture::TEX_Build));
sec->SetXScale(sector_t::floor, (bsec->floorstat & 8) ? FRACUNIT*2 : FRACUNIT);
sec->SetYScale(sector_t::floor, (bsec->floorstat & 8) ? FRACUNIT*2 : FRACUNIT);
sec->SetXOffset(sector_t::floor, (bsec->floorxpanning << FRACBITS) + (32 << FRACBITS));
sec->SetYOffset(sector_t::floor, bsec->floorypanning << FRACBITS);
sec->SetPlaneLight(sector_t::floor, SHADE2LIGHT (bsec->floorshade));
sec->ChangeFlags(sector_t::floor, 0, SECF_ABSLIGHTING);
sec->SetPlaneTexZ(sector_t::ceiling, -(LittleLong(bsec->ceilingz) << 8));
sec->ceilingplane.d = sec->GetPlaneTexZ(sector_t::ceiling);
sec->ceilingplane.c = -FRACUNIT;
sec->ceilingplane.ic = -FRACUNIT;
mysnprintf (tnam, countof(tnam), "BTIL%04d", LittleShort(bsec->ceilingpicnum));
sec->SetTexture(sector_t::ceiling, TexMan.GetTexture (tnam, FTexture::TEX_Build));
if (bsec->ceilingstat & 1)
{
sky1texture = sky2texture = sec->GetTexture(sector_t::ceiling);
sec->SetTexture(sector_t::ceiling, skyflatnum);
}
sec->SetXScale(sector_t::ceiling, (bsec->ceilingstat & 8) ? FRACUNIT*2 : FRACUNIT);
sec->SetYScale(sector_t::ceiling, (bsec->ceilingstat & 8) ? FRACUNIT*2 : FRACUNIT);
sec->SetXOffset(sector_t::ceiling, (bsec->ceilingxpanning << FRACBITS) + (32 << FRACBITS));
sec->SetYOffset(sector_t::ceiling, bsec->ceilingypanning << FRACBITS);
sec->SetPlaneLight(sector_t::ceiling, SHADE2LIGHT (bsec->ceilingshade));
sec->ChangeFlags(sector_t::ceiling, 0, SECF_ABSLIGHTING);
sec->lightlevel = (sec->GetPlaneLight(sector_t::floor) + sec->GetPlaneLight(sector_t::ceiling)) / 2;
sec->seqType = -1;
sec->nextsec = -1;
sec->prevsec = -1;
sec->gravity = 1.f;
sec->friction = ORIG_FRICTION;
sec->movefactor = ORIG_FRICTION_FACTOR;
sec->ColorMap = map;
sec->ZoneNumber = 0xFFFF;
if (bsec->floorstat & 4)
{
sec->SetAngle(sector_t::floor, ANGLE_90);
sec->SetXScale(sector_t::floor, -sec->GetXScale(sector_t::floor));
}
if (bsec->floorstat & 16)
{
sec->SetXScale(sector_t::floor, -sec->GetXScale(sector_t::floor));
}
if (bsec->floorstat & 32)
{
sec->SetYScale(sector_t::floor, -sec->GetYScale(sector_t::floor));
}
if (bsec->ceilingstat & 4)
{
sec->SetAngle(sector_t::ceiling, ANGLE_90);
sec->SetYScale(sector_t::ceiling, -sec->GetYScale(sector_t::ceiling));
}
if (bsec->ceilingstat & 16)
{
sec->SetXScale(sector_t::ceiling, -sec->GetXScale(sector_t::ceiling));
}
if (bsec->ceilingstat & 32)
{
sec->SetYScale(sector_t::ceiling, -sec->GetYScale(sector_t::ceiling));
}
}
}
//==========================================================================
//
// LoadWalls
//
//==========================================================================
static void LoadWalls (walltype *walls, int numwalls, sectortype *bsec)
{
int i, j;
// Setting numvertexes to the same as numwalls is overly conservative,
// but the extra vertices will be removed during the BSP building pass.
numsides = numvertexes = numwalls;
numlines = 0;
sides = new side_t[numsides];
memset (sides, 0, numsides*sizeof(side_t));
vertexes = new vertex_t[numvertexes];
numvertexes = 0;
// First mark each sidedef with the sector it belongs to
for (i = 0; i < numsectors; ++i)
{
if (bsec[i].wallptr >= 0)
{
for (j = 0; j < bsec[i].wallnum; ++j)
{
sides[j + bsec[i].wallptr].sector = sectors + i;
}
}
}
// Now copy wall properties to their matching sidedefs
for (i = 0; i < numwalls; ++i)
{
char tnam[9];
FTextureID overpic, pic;
mysnprintf (tnam, countof(tnam), "BTIL%04d", LittleShort(walls[i].picnum));
pic = TexMan.GetTexture (tnam, FTexture::TEX_Build);
mysnprintf (tnam, countof(tnam), "BTIL%04d", LittleShort(walls[i].overpicnum));
overpic = TexMan.GetTexture (tnam, FTexture::TEX_Build);
walls[i].x = LittleLong(walls[i].x);
walls[i].y = LittleLong(walls[i].y);
walls[i].point2 = LittleShort(walls[i].point2);
walls[i].cstat = LittleShort(walls[i].cstat);
walls[i].nextwall = LittleShort(walls[i].nextwall);
walls[i].nextsector = LittleShort(walls[i].nextsector);
sides[i].SetTextureXOffset(walls[i].xpanning << FRACBITS);
sides[i].SetTextureYOffset(walls[i].ypanning << FRACBITS);
sides[i].SetTexture(side_t::top, pic);
sides[i].SetTexture(side_t::bottom, pic);
if (walls[i].nextsector < 0 || (walls[i].cstat & 32))
{
sides[i].SetTexture(side_t::mid, pic);
}
else if (walls[i].cstat & 16)
{
sides[i].SetTexture(side_t::mid, overpic);
}
else
{
sides[i].SetTexture(side_t::mid, FNullTextureID());
}
sides[i].TexelLength = walls[i].xrepeat * 8;
sides[i].SetLight(SHADE2LIGHT(walls[i].shade));
sides[i].Flags = WALLF_ABSLIGHTING;
sides[i].RightSide = walls[i].point2;
sides[walls[i].point2].LeftSide = i;
if (walls[i].nextwall >= 0 && walls[i].nextwall <= i)
{
sides[i].linenum = sides[walls[i].nextwall].linenum;
}
else
{
sides[i].linenum = numlines++;
}
}
// Set line properties that Doom doesn't store per-sidedef
lines = new line_t[numlines];
memset (lines, 0, numlines*sizeof(line_t));
for (i = 0, j = -1; i < numwalls; ++i)
{
if (walls[i].nextwall >= 0 && walls[i].nextwall <= i)
{
continue;
}
j = sides[i].linenum;
lines[j].sidenum[0] = i;
lines[j].sidenum[1] = walls[i].nextwall;
lines[j].v1 = FindVertex (walls[i].x, walls[i].y);
lines[j].v2 = FindVertex (walls[walls[i].point2].x, walls[walls[i].point2].y);
lines[j].frontsector = sides[i].sector;
lines[j].flags |= ML_WRAP_MIDTEX;
if (walls[i].nextsector >= 0)
{
lines[j].backsector = sectors + walls[i].nextsector;
lines[j].flags |= ML_TWOSIDED;
}
else
{
lines[j].backsector = NULL;
}
P_AdjustLine (&lines[j]);
if (walls[i].cstat & 128)
{
if (walls[i].cstat & 512)
{
lines[j].Alpha = FRACUNIT/3;
}
else
{
lines[j].Alpha = FRACUNIT*2/3;
}
}
if (walls[i].cstat & 1)
{
lines[j].flags |= ML_BLOCKING;
}
if (walls[i].nextwall < 0)
{
if (walls[i].cstat & 4)
{
lines[j].flags |= ML_DONTPEGBOTTOM;
}
}
else
{
if (walls[i].cstat & 4)
{
lines[j].flags |= ML_DONTPEGTOP;
}
else
{
lines[j].flags |= ML_DONTPEGBOTTOM;
}
}
if (walls[i].cstat & 64)
{
lines[j].flags |= ML_BLOCKEVERYTHING;
}
}
// Finish setting sector properties that depend on walls
for (i = 0; i < numsectors; ++i, ++bsec)
{
SlopeWork slope;
slope.wal = &walls[bsec->wallptr];
slope.wal2 = &walls[slope.wal->point2];
slope.dx = slope.wal2->x - slope.wal->x;
slope.dy = slope.wal2->y - slope.wal->y;
slope.i = long (sqrt ((double)(slope.dx*slope.dx+slope.dy*slope.dy))) << 5;
if (slope.i == 0)
{
continue;
}
if ((bsec->floorstat & 2) && (bsec->floorheinum != 0))
{ // floor is sloped
slope.heinum = -LittleShort(bsec->floorheinum);
slope.z[0] = slope.z[1] = slope.z[2] = -bsec->floorz;
CalcPlane (slope, sectors[i].floorplane);
}
if ((bsec->ceilingstat & 2) && (bsec->ceilingheinum != 0))
{ // ceiling is sloped
slope.heinum = -LittleShort(bsec->ceilingheinum);
slope.z[0] = slope.z[1] = slope.z[2] = -bsec->ceilingz;
CalcPlane (slope, sectors[i].ceilingplane);
}
if (bsec->floorstat & 64)
{ // floor is aligned to first wall
R_AlignFlat (sides[bsec->wallptr].linenum,
lines[sides[bsec->wallptr].linenum].sidenum[1] == (DWORD)bsec->wallptr, 0);
}
if (bsec->ceilingstat & 64)
{ // ceiling is aligned to first wall
R_AlignFlat (sides[bsec->wallptr].linenum,
lines[sides[bsec->wallptr].linenum].sidenum[1] == (DWORD)bsec->wallptr, 0);
}
}
}
//==========================================================================
//
// LoadSprites
//
//==========================================================================
static int LoadSprites (spritetype *sprites, int numsprites, sectortype *bsectors,
FMapThing *mapthings)
{
int count = 0;
for (int i = 0; i < numsprites; ++i)
{
if (sprites[i].cstat & (16|32|32768)) continue;
if (sprites[i].xrepeat == 0 || sprites[i].yrepeat == 0) continue;
mapthings[count].thingid = 0;
mapthings[count].x = (sprites[i].x << 12);
mapthings[count].y = -(sprites[i].y << 12);
mapthings[count].z = (bsectors[sprites[i].sectnum].floorz - sprites[i].z) << 8;
mapthings[count].angle = (((2048-sprites[i].ang) & 2047) * 360) >> 11;
mapthings[count].type = 9988;
mapthings[count].ClassFilter = 0xffff;
mapthings[count].SkillFilter = 0xffff;
mapthings[count].flags = MTF_SINGLE|MTF_COOPERATIVE|MTF_DEATHMATCH;
mapthings[count].special = 0;
mapthings[count].args[0] = sprites[i].picnum & 255;
mapthings[count].args[1] = sprites[i].picnum >> 8;
mapthings[count].args[2] = sprites[i].xrepeat;
mapthings[count].args[3] = sprites[i].yrepeat;
mapthings[count].args[4] = (sprites[i].cstat & 14) | ((sprites[i].cstat >> 9) & 1);
count++;
}
return count;
}
//==========================================================================
//
// FindVertex
//
//==========================================================================
vertex_t *FindVertex (fixed_t x, fixed_t y)
{
int i;
x <<= 12;
y = -(y << 12);
for (i = 0; i < numvertexes; ++i)
{
if (vertexes[i].x == x && vertexes[i].y == y)
{
return &vertexes[i];
}
}
vertexes[i].x = x;
vertexes[i].y = y;
numvertexes++;
return &vertexes[i];
}
//==========================================================================
//
// CreateStartSpot
//
//==========================================================================
static void CreateStartSpot (fixed_t *pos, FMapThing *start)
{
short angle = LittleShort(*(WORD *)(&pos[3]));
FMapThing mt =
{
0, (LittleLong(pos[0])<<12), ((-LittleLong(pos[1]))<<12), 0,// tid, x, y, z
short(Scale ((2048-angle)&2047, 360, 2048)), 1, // angle, type
7|MTF_SINGLE|224, // flags
// special and args are 0
};
*start = mt;
}
//==========================================================================
//
// CalcPlane
//
//==========================================================================
static void CalcPlane (SlopeWork &slope, secplane_t &plane)
{
FVector3 pt[3];
long j;
slope.x[0] = slope.wal->x; slope.y[0] = slope.wal->y;
slope.x[1] = slope.wal2->x; slope.y[1] = slope.wal2->y;
if (slope.dx == 0)
{
slope.x[2] = slope.x[0] + 64;
slope.y[2] = slope.y[0];
}
else
{
slope.x[2] = slope.x[0];
slope.y[2] = slope.y[0] + 64;
}
j = DMulScale3 (slope.dx, slope.y[2]-slope.wal->y,
-slope.dy, slope.x[2]-slope.wal->x);
slope.z[2] += Scale (slope.heinum, j, slope.i);
pt[0] = FVector3(slope.dx, -slope.dy, 0);
pt[1] = FVector3(slope.x[2] - slope.x[0], slope.y[0] - slope.y[2], (slope.z[2] - slope.z[0]) / 16);
pt[2] = (pt[0] ^ pt[1]).Unit();
if ((pt[2][2] < 0 && plane.c > 0) || (pt[2][2] > 0 && plane.c < 0))
{
pt[2] = -pt[2];
}
plane.a = fixed_t(pt[2][0]*65536.f);
plane.b = fixed_t(pt[2][1]*65536.f);
plane.c = fixed_t(pt[2][2]*65536.f);
plane.ic = fixed_t(65536.f/pt[2][2]);
plane.d = -TMulScale8
(plane.a, slope.x[0]<<4, plane.b, (-slope.y[0])<<4, plane.c, slope.z[0]);
}
//==========================================================================
//
// Decrypt
//
// Note that this is different from the general RFF encryption.
//
//==========================================================================
static void Decrypt (void *to_, const void *from_, int len, int key)
{
BYTE *to = (BYTE *)to_;
const BYTE *from = (const BYTE *)from_;
for (int i = 0; i < len; ++i, ++key)
{
to[i] = from[i] ^ key;
}
}
//==========================================================================
//
// Just an actor to make the Build sprites show up. It doesn't do anything
// with them other than display them.
//
//==========================================================================
class ACustomSprite : public AActor
{
DECLARE_CLASS (ACustomSprite, AActor);
public:
void BeginPlay ();
};
IMPLEMENT_CLASS (ACustomSprite)
void ACustomSprite::BeginPlay ()
{
char name[9];
Super::BeginPlay ();
mysnprintf (name, countof(name), "BTIL%04d", (args[0] + args[1]*256) & 0xffff);
picnum = TexMan.GetTexture (name, FTexture::TEX_Build);
scaleX = args[2] * (FRACUNIT/64);
scaleY = args[3] * (FRACUNIT/64);
if (args[4] & 2)
{
RenderStyle = STYLE_Translucent;
if (args[4] & 1)
alpha = TRANSLUC66;
else
alpha = TRANSLUC33;
}
if (args[4] & 4)
renderflags |= RF_XFLIP;
if (args[4] & 8)
renderflags |= RF_YFLIP;
}
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