mirror of
https://github.com/ZDoom/qzdoom-gpl.git
synced 2024-12-13 13:40:53 +00:00
e1ee80661e
because they're kind of a pain to type when all uppercase. - Also, make its sx1 and sx2 members shorts, so it takes less space, since it's getting crammed into a vissprite now.
1403 lines
40 KiB
C++
1403 lines
40 KiB
C++
// Emacs style mode select -*- C++ -*-
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// $Id:$
|
|
//
|
|
// Copyright (C) 1993-1996 by id Software, Inc.
|
|
//
|
|
// This source is available for distribution and/or modification
|
|
// only under the terms of the DOOM Source Code License as
|
|
// published by id Software. All rights reserved.
|
|
//
|
|
// The source is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
|
|
// for more details.
|
|
//
|
|
// DESCRIPTION:
|
|
// BSP traversal, handling of LineSegs for rendering.
|
|
//
|
|
// This file contains some code from the Build Engine.
|
|
//
|
|
// "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.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "templates.h"
|
|
|
|
#include "doomdef.h"
|
|
|
|
#include "m_bbox.h"
|
|
|
|
#include "i_system.h"
|
|
#include "p_lnspec.h"
|
|
#include "p_setup.h"
|
|
|
|
#include "r_main.h"
|
|
#include "r_plane.h"
|
|
#include "r_draw.h"
|
|
#include "r_things.h"
|
|
#include "r_3dfloors.h"
|
|
#include "a_sharedglobal.h"
|
|
#include "g_level.h"
|
|
#include "p_effect.h"
|
|
|
|
// State.
|
|
#include "doomstat.h"
|
|
#include "r_state.h"
|
|
#include "r_bsp.h"
|
|
#include "r_segs.h"
|
|
#include "v_palette.h"
|
|
#include "r_sky.h"
|
|
#include "po_man.h"
|
|
#include "r_data/colormaps.h"
|
|
|
|
seg_t* curline;
|
|
side_t* sidedef;
|
|
line_t* linedef;
|
|
sector_t* frontsector;
|
|
sector_t* backsector;
|
|
|
|
// killough 4/7/98: indicates doors closed wrt automap bugfix:
|
|
int doorclosed;
|
|
|
|
bool r_fakingunderwater;
|
|
|
|
extern bool rw_prepped;
|
|
extern bool rw_havehigh, rw_havelow;
|
|
extern int rw_floorstat, rw_ceilstat;
|
|
extern bool rw_mustmarkfloor, rw_mustmarkceiling;
|
|
extern short walltop[MAXWIDTH]; // [RH] record max extents of wall
|
|
extern short wallbottom[MAXWIDTH];
|
|
extern short wallupper[MAXWIDTH];
|
|
extern short walllower[MAXWIDTH];
|
|
|
|
fixed_t rw_backcz1, rw_backcz2;
|
|
fixed_t rw_backfz1, rw_backfz2;
|
|
fixed_t rw_frontcz1, rw_frontcz2;
|
|
fixed_t rw_frontfz1, rw_frontfz2;
|
|
|
|
|
|
size_t MaxDrawSegs;
|
|
drawseg_t *drawsegs;
|
|
drawseg_t* firstdrawseg;
|
|
drawseg_t* ds_p;
|
|
|
|
size_t FirstInterestingDrawseg;
|
|
TArray<size_t> InterestingDrawsegs;
|
|
|
|
FWallCoords WallC;
|
|
FWallTmapVals WallT;
|
|
|
|
static BYTE FakeSide;
|
|
|
|
int WindowLeft, WindowRight;
|
|
WORD MirrorFlags;
|
|
seg_t *ActiveWallMirror;
|
|
TArray<size_t> WallMirrors;
|
|
|
|
static subsector_t *InSubsector;
|
|
|
|
CVAR (Bool, r_drawflat, false, 0) // [RH] Don't texture segs?
|
|
|
|
|
|
void R_StoreWallRange (int start, int stop);
|
|
|
|
//
|
|
// R_ClearDrawSegs
|
|
//
|
|
void R_ClearDrawSegs (void)
|
|
{
|
|
if (drawsegs == NULL)
|
|
{
|
|
MaxDrawSegs = 256; // [RH] Default. Increased as needed.
|
|
firstdrawseg = drawsegs = (drawseg_t *)M_Malloc (MaxDrawSegs * sizeof(drawseg_t));
|
|
}
|
|
FirstInterestingDrawseg = 0;
|
|
InterestingDrawsegs.Clear ();
|
|
ds_p = drawsegs;
|
|
}
|
|
|
|
|
|
|
|
//
|
|
// ClipWallSegment
|
|
// Clips the given range of columns
|
|
// and includes it in the new clip list.
|
|
//
|
|
//
|
|
// 1/11/98 killough: Since a type "short" is sufficient, we
|
|
// should use it, since smaller arrays fit better in cache.
|
|
//
|
|
|
|
struct cliprange_t
|
|
{
|
|
short first, last; // killough
|
|
};
|
|
|
|
|
|
// newend is one past the last valid seg
|
|
static cliprange_t *newend;
|
|
static cliprange_t solidsegs[MAXWIDTH/2+2];
|
|
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// R_ClipWallSegment
|
|
//
|
|
// Clips the given range of columns, possibly including it in the clip list.
|
|
// Handles both windows (e.g. LineDefs with upper and lower textures) and
|
|
// solid walls (e.g. single sided LineDefs [middle texture]) that entirely
|
|
// block the view.
|
|
//
|
|
//==========================================================================
|
|
|
|
bool R_ClipWallSegment (int first, int last, bool solid)
|
|
{
|
|
cliprange_t *next, *start;
|
|
int i, j;
|
|
bool res = false;
|
|
|
|
// Find the first range that touches the range
|
|
// (adjacent pixels are touching).
|
|
start = solidsegs;
|
|
while (start->last < first)
|
|
start++;
|
|
|
|
if (first < start->first)
|
|
{
|
|
res = true;
|
|
if (last <= start->first)
|
|
{
|
|
// Post is entirely visible (above start).
|
|
R_StoreWallRange (first, last);
|
|
if (fake3D & FAKE3D_FAKEMASK)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Insert a new clippost for solid walls.
|
|
if (solid)
|
|
{
|
|
if (last == start->first)
|
|
{
|
|
start->first = first;
|
|
}
|
|
else
|
|
{
|
|
next = newend;
|
|
newend++;
|
|
while (next != start)
|
|
{
|
|
*next = *(next-1);
|
|
next--;
|
|
}
|
|
next->first = first;
|
|
next->last = last;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// There is a fragment above *start.
|
|
R_StoreWallRange (first, start->first);
|
|
|
|
// Adjust the clip size for solid walls
|
|
if (solid && !(fake3D & FAKE3D_FAKEMASK))
|
|
{
|
|
start->first = first;
|
|
}
|
|
}
|
|
|
|
// Bottom contained in start?
|
|
if (last <= start->last)
|
|
return res;
|
|
|
|
next = start;
|
|
while (last >= (next+1)->first)
|
|
{
|
|
// There is a fragment between two posts.
|
|
R_StoreWallRange (next->last, (next+1)->first);
|
|
next++;
|
|
|
|
if (last <= next->last)
|
|
{
|
|
// Bottom is contained in next.
|
|
last = next->last;
|
|
goto crunch;
|
|
}
|
|
}
|
|
|
|
// There is a fragment after *next.
|
|
R_StoreWallRange (next->last, last);
|
|
|
|
crunch:
|
|
if (fake3D & FAKE3D_FAKEMASK)
|
|
{
|
|
return true;
|
|
}
|
|
if (solid)
|
|
{
|
|
// Adjust the clip size.
|
|
start->last = last;
|
|
|
|
if (next != start)
|
|
{
|
|
// Remove start+1 to next from the clip list,
|
|
// because start now covers their area.
|
|
for (i = 1, j = (int)(newend - next); j > 0; i++, j--)
|
|
{
|
|
start[i] = next[i];
|
|
}
|
|
newend = start+i;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool R_CheckClipWallSegment (int first, int last)
|
|
{
|
|
cliprange_t *start;
|
|
|
|
// Find the first range that touches the range
|
|
// (adjacent pixels are touching).
|
|
start = solidsegs;
|
|
while (start->last < first)
|
|
start++;
|
|
|
|
if (first < start->first)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Bottom contained in start?
|
|
if (last > start->last)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
//
|
|
// R_ClearClipSegs
|
|
//
|
|
void R_ClearClipSegs (short left, short right)
|
|
{
|
|
solidsegs[0].first = -0x7fff; // new short limit -- killough
|
|
solidsegs[0].last = left;
|
|
solidsegs[1].first = right;
|
|
solidsegs[1].last = 0x7fff; // new short limit -- killough
|
|
newend = solidsegs+2;
|
|
}
|
|
|
|
|
|
//
|
|
// killough 3/7/98: Hack floor/ceiling heights for deep water etc.
|
|
//
|
|
// If player's view height is underneath fake floor, lower the
|
|
// drawn ceiling to be just under the floor height, and replace
|
|
// the drawn floor and ceiling textures, and light level, with
|
|
// the control sector's.
|
|
//
|
|
// Similar for ceiling, only reflected.
|
|
//
|
|
// killough 4/11/98, 4/13/98: fix bugs, add 'back' parameter
|
|
//
|
|
|
|
sector_t *R_FakeFlat(sector_t *sec, sector_t *tempsec,
|
|
int *floorlightlevel, int *ceilinglightlevel,
|
|
bool back)
|
|
{
|
|
// [RH] allow per-plane lighting
|
|
if (floorlightlevel != NULL)
|
|
{
|
|
*floorlightlevel = sec->GetFloorLight ();
|
|
}
|
|
|
|
if (ceilinglightlevel != NULL)
|
|
{
|
|
*ceilinglightlevel = sec->GetCeilingLight ();
|
|
}
|
|
|
|
FakeSide = FAKED_Center;
|
|
|
|
const sector_t *s = sec->GetHeightSec();
|
|
if (s != NULL)
|
|
{
|
|
sector_t *heightsec = viewsector->heightsec;
|
|
bool underwater = r_fakingunderwater ||
|
|
(heightsec && heightsec->floorplane.PointOnSide(viewx, viewy, viewz) <= 0);
|
|
bool doorunderwater = false;
|
|
int diffTex = (s->MoreFlags & SECF_CLIPFAKEPLANES);
|
|
|
|
// Replace sector being drawn with a copy to be hacked
|
|
*tempsec = *sec;
|
|
|
|
// Replace floor and ceiling height with control sector's heights.
|
|
if (diffTex)
|
|
{
|
|
if (s->floorplane.CopyPlaneIfValid (&tempsec->floorplane, &sec->ceilingplane))
|
|
{
|
|
tempsec->SetTexture(sector_t::floor, s->GetTexture(sector_t::floor), false);
|
|
}
|
|
else if (s->MoreFlags & SECF_FAKEFLOORONLY)
|
|
{
|
|
if (underwater)
|
|
{
|
|
tempsec->ColorMap = s->ColorMap;
|
|
if (!(s->MoreFlags & SECF_NOFAKELIGHT))
|
|
{
|
|
tempsec->lightlevel = s->lightlevel;
|
|
|
|
if (floorlightlevel != NULL)
|
|
{
|
|
*floorlightlevel = s->GetFloorLight ();
|
|
}
|
|
|
|
if (ceilinglightlevel != NULL)
|
|
{
|
|
*ceilinglightlevel = s->GetCeilingLight ();
|
|
}
|
|
}
|
|
FakeSide = FAKED_BelowFloor;
|
|
return tempsec;
|
|
}
|
|
return sec;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
tempsec->floorplane = s->floorplane;
|
|
}
|
|
|
|
if (!(s->MoreFlags & SECF_FAKEFLOORONLY))
|
|
{
|
|
if (diffTex)
|
|
{
|
|
if (s->ceilingplane.CopyPlaneIfValid (&tempsec->ceilingplane, &sec->floorplane))
|
|
{
|
|
tempsec->SetTexture(sector_t::ceiling, s->GetTexture(sector_t::ceiling), false);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
tempsec->ceilingplane = s->ceilingplane;
|
|
}
|
|
}
|
|
|
|
fixed_t refceilz = s->ceilingplane.ZatPoint (viewx, viewy);
|
|
fixed_t orgceilz = sec->ceilingplane.ZatPoint (viewx, viewy);
|
|
|
|
#if 1
|
|
// [RH] Allow viewing underwater areas through doors/windows that
|
|
// are underwater but not in a water sector themselves.
|
|
// Only works if you cannot see the top surface of any deep water
|
|
// sectors at the same time.
|
|
if (back && !r_fakingunderwater && curline->frontsector->heightsec == NULL)
|
|
{
|
|
if (rw_frontcz1 <= s->floorplane.ZatPoint (curline->v1->x, curline->v1->y) &&
|
|
rw_frontcz2 <= s->floorplane.ZatPoint (curline->v2->x, curline->v2->y))
|
|
{
|
|
// Check that the window is actually visible
|
|
for (int z = WallC.sx1; z < WallC.sx2; ++z)
|
|
{
|
|
if (floorclip[z] > ceilingclip[z])
|
|
{
|
|
doorunderwater = true;
|
|
r_fakingunderwater = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (underwater || doorunderwater)
|
|
{
|
|
tempsec->floorplane = sec->floorplane;
|
|
tempsec->ceilingplane = s->floorplane;
|
|
tempsec->ceilingplane.FlipVert ();
|
|
tempsec->ceilingplane.ChangeHeight (-1);
|
|
tempsec->ColorMap = s->ColorMap;
|
|
}
|
|
|
|
// killough 11/98: prevent sudden light changes from non-water sectors:
|
|
if ((underwater && !back) || doorunderwater)
|
|
{ // head-below-floor hack
|
|
tempsec->SetTexture(sector_t::floor, diffTex ? sec->GetTexture(sector_t::floor) : s->GetTexture(sector_t::floor), false);
|
|
tempsec->planes[sector_t::floor].xform = s->planes[sector_t::floor].xform;
|
|
|
|
tempsec->ceilingplane = s->floorplane;
|
|
tempsec->ceilingplane.FlipVert ();
|
|
tempsec->ceilingplane.ChangeHeight (-1);
|
|
if (s->GetTexture(sector_t::ceiling) == skyflatnum)
|
|
{
|
|
tempsec->floorplane = tempsec->ceilingplane;
|
|
tempsec->floorplane.FlipVert ();
|
|
tempsec->floorplane.ChangeHeight (+1);
|
|
tempsec->SetTexture(sector_t::ceiling, tempsec->GetTexture(sector_t::floor), false);
|
|
tempsec->planes[sector_t::ceiling].xform = tempsec->planes[sector_t::floor].xform;
|
|
}
|
|
else
|
|
{
|
|
tempsec->SetTexture(sector_t::ceiling, diffTex ? s->GetTexture(sector_t::floor) : s->GetTexture(sector_t::ceiling), false);
|
|
tempsec->planes[sector_t::ceiling].xform = s->planes[sector_t::ceiling].xform;
|
|
}
|
|
|
|
if (!(s->MoreFlags & SECF_NOFAKELIGHT))
|
|
{
|
|
tempsec->lightlevel = s->lightlevel;
|
|
|
|
if (floorlightlevel != NULL)
|
|
{
|
|
*floorlightlevel = s->GetFloorLight ();
|
|
}
|
|
|
|
if (ceilinglightlevel != NULL)
|
|
{
|
|
*ceilinglightlevel = s->GetCeilingLight ();
|
|
}
|
|
}
|
|
FakeSide = FAKED_BelowFloor;
|
|
}
|
|
else if (heightsec && heightsec->ceilingplane.PointOnSide(viewx, viewy, viewz) <= 0 &&
|
|
orgceilz > refceilz && !(s->MoreFlags & SECF_FAKEFLOORONLY))
|
|
{ // Above-ceiling hack
|
|
tempsec->ceilingplane = s->ceilingplane;
|
|
tempsec->floorplane = s->ceilingplane;
|
|
tempsec->floorplane.FlipVert ();
|
|
tempsec->floorplane.ChangeHeight (+1);
|
|
tempsec->ColorMap = s->ColorMap;
|
|
tempsec->ColorMap = s->ColorMap;
|
|
|
|
tempsec->SetTexture(sector_t::ceiling, diffTex ? sec->GetTexture(sector_t::ceiling) : s->GetTexture(sector_t::ceiling), false);
|
|
tempsec->SetTexture(sector_t::floor, s->GetTexture(sector_t::ceiling), false);
|
|
tempsec->planes[sector_t::ceiling].xform = tempsec->planes[sector_t::floor].xform = s->planes[sector_t::ceiling].xform;
|
|
|
|
if (s->GetTexture(sector_t::floor) != skyflatnum)
|
|
{
|
|
tempsec->ceilingplane = sec->ceilingplane;
|
|
tempsec->SetTexture(sector_t::floor, s->GetTexture(sector_t::floor), false);
|
|
tempsec->planes[sector_t::floor].xform = s->planes[sector_t::floor].xform;
|
|
}
|
|
|
|
if (!(s->MoreFlags & SECF_NOFAKELIGHT))
|
|
{
|
|
tempsec->lightlevel = s->lightlevel;
|
|
|
|
if (floorlightlevel != NULL)
|
|
{
|
|
*floorlightlevel = s->GetFloorLight ();
|
|
}
|
|
|
|
if (ceilinglightlevel != NULL)
|
|
{
|
|
*ceilinglightlevel = s->GetCeilingLight ();
|
|
}
|
|
}
|
|
FakeSide = FAKED_AboveCeiling;
|
|
}
|
|
sec = tempsec; // Use other sector
|
|
}
|
|
return sec;
|
|
}
|
|
|
|
|
|
//
|
|
// R_AddLine
|
|
// Clips the given segment
|
|
// and adds any visible pieces to the line list.
|
|
//
|
|
|
|
void R_AddLine (seg_t *line)
|
|
{
|
|
static sector_t tempsec; // killough 3/8/98: ceiling/water hack
|
|
bool solid;
|
|
fixed_t tx1, tx2, ty1, ty2;
|
|
|
|
curline = line;
|
|
|
|
// [RH] Color if not texturing line
|
|
dc_color = (((int)(line - segs) * 8) + 4) & 255;
|
|
|
|
tx1 = line->v1->x - viewx;
|
|
tx2 = line->v2->x - viewx;
|
|
ty1 = line->v1->y - viewy;
|
|
ty2 = line->v2->y - viewy;
|
|
|
|
// Reject lines not facing viewer
|
|
if (DMulScale32 (ty1, tx1-tx2, tx1, ty2-ty1) >= 0)
|
|
return;
|
|
|
|
if (WallC.Init(tx1, ty1, tx2, ty2, 32))
|
|
return;
|
|
|
|
if (WallC.sx1 > WindowRight || WallC.sx2 < WindowLeft)
|
|
return;
|
|
|
|
if (line->linedef == NULL)
|
|
{
|
|
if (R_CheckClipWallSegment (WallC.sx1, WallC.sx2))
|
|
{
|
|
InSubsector->flags |= SSECF_DRAWN;
|
|
}
|
|
return;
|
|
}
|
|
|
|
vertex_t *v1, *v2;
|
|
|
|
v1 = line->linedef->v1;
|
|
v2 = line->linedef->v2;
|
|
|
|
if ((v1 == line->v1 && v2 == line->v2) || (v2 == line->v1 && v1 == line->v2))
|
|
{ // The seg is the entire wall.
|
|
WallT.InitFromWallCoords(&WallC);
|
|
}
|
|
else
|
|
{ // The seg is only part of the wall.
|
|
if (line->linedef->sidedef[0] != line->sidedef)
|
|
{
|
|
swapvalues (v1, v2);
|
|
}
|
|
WallT.InitFromLine(v1->x - viewx, v1->y - viewy, v2->x - viewx, v2->y - viewy);
|
|
}
|
|
|
|
if (!(fake3D & FAKE3D_FAKEBACK))
|
|
{
|
|
backsector = line->backsector;
|
|
}
|
|
rw_frontcz1 = frontsector->ceilingplane.ZatPoint (line->v1->x, line->v1->y);
|
|
rw_frontfz1 = frontsector->floorplane.ZatPoint (line->v1->x, line->v1->y);
|
|
rw_frontcz2 = frontsector->ceilingplane.ZatPoint (line->v2->x, line->v2->y);
|
|
rw_frontfz2 = frontsector->floorplane.ZatPoint (line->v2->x, line->v2->y);
|
|
|
|
rw_mustmarkfloor = rw_mustmarkceiling = false;
|
|
rw_havehigh = rw_havelow = false;
|
|
|
|
// Single sided line?
|
|
if (backsector == NULL)
|
|
{
|
|
solid = true;
|
|
}
|
|
else
|
|
{
|
|
// kg3D - its fake, no transfer_heights
|
|
if (!(fake3D & FAKE3D_FAKEBACK))
|
|
{ // killough 3/8/98, 4/4/98: hack for invisible ceilings / deep water
|
|
backsector = R_FakeFlat (backsector, &tempsec, NULL, NULL, true);
|
|
}
|
|
doorclosed = 0; // killough 4/16/98
|
|
|
|
rw_backcz1 = backsector->ceilingplane.ZatPoint (line->v1->x, line->v1->y);
|
|
rw_backfz1 = backsector->floorplane.ZatPoint (line->v1->x, line->v1->y);
|
|
rw_backcz2 = backsector->ceilingplane.ZatPoint (line->v2->x, line->v2->y);
|
|
rw_backfz2 = backsector->floorplane.ZatPoint (line->v2->x, line->v2->y);
|
|
|
|
// Cannot make these walls solid, because it can result in
|
|
// sprite clipping problems for sprites near the wall
|
|
if (rw_frontcz1 > rw_backcz1 || rw_frontcz2 > rw_backcz2)
|
|
{
|
|
rw_havehigh = true;
|
|
WallMost (wallupper, backsector->ceilingplane, &WallC);
|
|
}
|
|
if (rw_frontfz1 < rw_backfz1 || rw_frontfz2 < rw_backfz2)
|
|
{
|
|
rw_havelow = true;
|
|
WallMost (walllower, backsector->floorplane, &WallC);
|
|
}
|
|
|
|
// Closed door.
|
|
if ((rw_backcz1 <= rw_frontfz1 && rw_backcz2 <= rw_frontfz2) ||
|
|
(rw_backfz1 >= rw_frontcz1 && rw_backfz2 >= rw_frontcz2))
|
|
{
|
|
solid = true;
|
|
}
|
|
else if (
|
|
// properly render skies (consider door "open" if both ceilings are sky):
|
|
(backsector->GetTexture(sector_t::ceiling) != skyflatnum || frontsector->GetTexture(sector_t::ceiling) != skyflatnum)
|
|
|
|
// if door is closed because back is shut:
|
|
&& rw_backcz1 <= rw_backfz1 && rw_backcz2 <= rw_backfz2
|
|
|
|
// preserve a kind of transparent door/lift special effect:
|
|
&& ((rw_backcz1 >= rw_frontcz1 && rw_backcz2 >= rw_frontcz2) || line->sidedef->GetTexture(side_t::top).isValid())
|
|
&& ((rw_backfz1 <= rw_frontfz1 && rw_backfz2 <= rw_frontfz2) || line->sidedef->GetTexture(side_t::bottom).isValid()))
|
|
{
|
|
// killough 1/18/98 -- This function is used to fix the automap bug which
|
|
// showed lines behind closed doors simply because the door had a dropoff.
|
|
//
|
|
// It assumes that Doom has already ruled out a door being closed because
|
|
// of front-back closure (e.g. front floor is taller than back ceiling).
|
|
|
|
// This fixes the automap floor height bug -- killough 1/18/98:
|
|
// killough 4/7/98: optimize: save result in doorclosed for use in r_segs.c
|
|
doorclosed = true;
|
|
solid = true;
|
|
}
|
|
else if (frontsector->ceilingplane != backsector->ceilingplane ||
|
|
frontsector->floorplane != backsector->floorplane)
|
|
{
|
|
// Window.
|
|
solid = false;
|
|
}
|
|
else if (backsector->lightlevel != frontsector->lightlevel
|
|
|| backsector->GetTexture(sector_t::floor) != frontsector->GetTexture(sector_t::floor)
|
|
|| backsector->GetTexture(sector_t::ceiling) != frontsector->GetTexture(sector_t::ceiling)
|
|
|| curline->sidedef->GetTexture(side_t::mid).isValid()
|
|
|
|
// killough 3/7/98: Take flats offsets into account:
|
|
|| backsector->GetXOffset(sector_t::floor) != frontsector->GetXOffset(sector_t::floor)
|
|
|| backsector->GetYOffset(sector_t::floor) != frontsector->GetYOffset(sector_t::floor)
|
|
|| backsector->GetXOffset(sector_t::ceiling) != frontsector->GetXOffset(sector_t::ceiling)
|
|
|| backsector->GetYOffset(sector_t::ceiling) != frontsector->GetYOffset(sector_t::ceiling)
|
|
|
|
|| backsector->GetPlaneLight(sector_t::floor) != frontsector->GetPlaneLight(sector_t::floor)
|
|
|| backsector->GetPlaneLight(sector_t::ceiling) != frontsector->GetPlaneLight(sector_t::ceiling)
|
|
|| backsector->GetFlags(sector_t::floor) != frontsector->GetFlags(sector_t::floor)
|
|
|| backsector->GetFlags(sector_t::ceiling) != frontsector->GetFlags(sector_t::ceiling)
|
|
|
|
// [RH] Also consider colormaps
|
|
|| backsector->ColorMap != frontsector->ColorMap
|
|
|
|
// [RH] and scaling
|
|
|| backsector->GetXScale(sector_t::floor) != frontsector->GetXScale(sector_t::floor)
|
|
|| backsector->GetYScale(sector_t::floor) != frontsector->GetYScale(sector_t::floor)
|
|
|| backsector->GetXScale(sector_t::ceiling) != frontsector->GetXScale(sector_t::ceiling)
|
|
|| backsector->GetYScale(sector_t::ceiling) != frontsector->GetYScale(sector_t::ceiling)
|
|
|
|
// [RH] and rotation
|
|
|| backsector->GetAngle(sector_t::floor) != frontsector->GetAngle(sector_t::floor)
|
|
|| backsector->GetAngle(sector_t::ceiling) != frontsector->GetAngle(sector_t::ceiling)
|
|
|
|
// kg3D - and fake lights
|
|
|| (frontsector->e && frontsector->e->XFloor.lightlist.Size())
|
|
|| (backsector->e && backsector->e->XFloor.lightlist.Size())
|
|
)
|
|
{
|
|
solid = false;
|
|
}
|
|
else
|
|
{
|
|
// Reject empty lines used for triggers and special events.
|
|
// Identical floor and ceiling on both sides, identical light levels
|
|
// on both sides, and no middle texture.
|
|
|
|
// When using GL nodes, do a clipping test for these lines so we can
|
|
// mark their subsectors as visible for automap texturing.
|
|
if (hasglnodes && !(InSubsector->flags & SSECF_DRAWN))
|
|
{
|
|
if (R_CheckClipWallSegment(WallC.sx1, WallC.sx2))
|
|
{
|
|
InSubsector->flags |= SSECF_DRAWN;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
rw_prepped = false;
|
|
|
|
if (line->linedef->special == Line_Horizon)
|
|
{
|
|
// Be aware: Line_Horizon does not work properly with sloped planes
|
|
clearbufshort (walltop+WallC.sx1, WallC.sx2 - WallC.sx1, centery);
|
|
clearbufshort (wallbottom+WallC.sx1, WallC.sx2 - WallC.sx1, centery);
|
|
}
|
|
else
|
|
{
|
|
rw_ceilstat = WallMost (walltop, frontsector->ceilingplane, &WallC);
|
|
rw_floorstat = WallMost (wallbottom, frontsector->floorplane, &WallC);
|
|
|
|
// [RH] treat off-screen walls as solid
|
|
#if 0 // Maybe later...
|
|
if (!solid)
|
|
{
|
|
if (rw_ceilstat == 12 && line->sidedef->GetTexture(side_t::top) != 0)
|
|
{
|
|
rw_mustmarkceiling = true;
|
|
solid = true;
|
|
}
|
|
if (rw_floorstat == 3 && line->sidedef->GetTexture(side_t::bottom) != 0)
|
|
{
|
|
rw_mustmarkfloor = true;
|
|
solid = true;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (R_ClipWallSegment (WallC.sx1, WallC.sx2, solid))
|
|
{
|
|
InSubsector->flags |= SSECF_DRAWN;
|
|
}
|
|
}
|
|
|
|
//
|
|
// FWallCoords :: Init
|
|
//
|
|
// Transform and clip coordinates. Returns true if it was clipped away
|
|
//
|
|
bool FWallCoords::Init(int x1, int y1, int x2, int y2, int too_close)
|
|
{
|
|
tx1 = DMulScale20(x1, viewsin, -y1, viewcos);
|
|
tx2 = DMulScale20(x2, viewsin, -y2, viewcos);
|
|
|
|
ty1 = DMulScale20(x1, viewtancos, y1, viewtansin);
|
|
ty2 = DMulScale20(x2, viewtancos, y2, viewtansin);
|
|
|
|
if (MirrorFlags & RF_XFLIP)
|
|
{
|
|
int t = 256 - tx1;
|
|
tx1 = 256 - tx2;
|
|
tx2 = t;
|
|
swapvalues(ty1, ty2);
|
|
}
|
|
|
|
if (tx1 >= -ty1)
|
|
{
|
|
if (tx1 > ty1) return true; // left edge is off the right side
|
|
if (ty1 == 0) return true;
|
|
sx1 = (centerxfrac + Scale(tx1, centerxfrac, ty1)) >> FRACBITS;
|
|
if (tx1 >= 0) sx1 = MIN(viewwidth, sx1+1); // fix for signed divide
|
|
sz1 = ty1;
|
|
}
|
|
else
|
|
{
|
|
if (tx2 < -ty2) return true; // wall is off the left side
|
|
fixed_t den = tx1 - tx2 - ty2 + ty1;
|
|
if (den == 0) return true;
|
|
sx1 = 0;
|
|
sz1 = ty1 + Scale(ty2 - ty1, tx1 + ty1, den);
|
|
}
|
|
|
|
if (sz1 < too_close)
|
|
return true;
|
|
|
|
if (tx2 <= ty2)
|
|
{
|
|
if (tx2 < -ty2) return true; // right edge is off the left side
|
|
if (ty2 == 0) return true;
|
|
sx2 = (centerxfrac + Scale(tx2, centerxfrac, ty2)) >> FRACBITS;
|
|
if (tx2 >= 0) sx2 = MIN(viewwidth, sx2+1); // fix for signed divide
|
|
sz2 = ty2;
|
|
}
|
|
else
|
|
{
|
|
if (tx1 > ty1) return true; // wall is off the right side
|
|
fixed_t den = ty2 - ty1 - tx2 + tx1;
|
|
if (den == 0) return true;
|
|
sx2 = viewwidth;
|
|
sz2 = ty1 + Scale(ty2 - ty1, tx1 - ty1, den);
|
|
}
|
|
|
|
if (sz2 < too_close || sx2 <= sx1)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
void FWallTmapVals::InitFromWallCoords(const FWallCoords *wallc)
|
|
{
|
|
if (MirrorFlags & RF_XFLIP)
|
|
{
|
|
UoverZorg = (float)wallc->tx2 * WallTMapScale;
|
|
UoverZstep = (float)(-wallc->ty2) * 32.f;
|
|
InvZorg = (float)(wallc->tx2 - wallc->tx1) * WallTMapScale;
|
|
InvZstep = (float)(wallc->ty1 - wallc->ty2) * 32.f;
|
|
}
|
|
else
|
|
{
|
|
UoverZorg = (float)wallc->tx1 * WallTMapScale;
|
|
UoverZstep = (float)(-wallc->ty1) * 32.f;
|
|
InvZorg = (float)(wallc->tx1 - wallc->tx2) * WallTMapScale;
|
|
InvZstep = (float)(wallc->ty2 - wallc->ty1) * 32.f;
|
|
}
|
|
InitDepth();
|
|
}
|
|
|
|
void FWallTmapVals::InitFromLine(int tx1, int ty1, int tx2, int ty2)
|
|
{ // Coordinates should have already had viewx,viewy subtracted
|
|
fixed_t fullx1 = DMulScale20 (tx1, viewsin, -ty1, viewcos);
|
|
fixed_t fullx2 = DMulScale20 (tx2, viewsin, -ty2, viewcos);
|
|
fixed_t fully1 = DMulScale20 (tx1, viewtancos, ty1, viewtansin);
|
|
fixed_t fully2 = DMulScale20 (tx2, viewtancos, ty2, viewtansin);
|
|
|
|
if (MirrorFlags & RF_XFLIP)
|
|
{
|
|
fullx1 = -fullx1;
|
|
fullx2 = -fullx2;
|
|
}
|
|
|
|
UoverZorg = (float)fullx1 * WallTMapScale;
|
|
UoverZstep = (float)(-fully1) * 32.f;
|
|
InvZorg = (float)(fullx1 - fullx2) * WallTMapScale;
|
|
InvZstep = (float)(fully2 - fully1) * 32.f;
|
|
InitDepth();
|
|
}
|
|
|
|
void FWallTmapVals::InitDepth()
|
|
{
|
|
DepthScale = InvZstep * WallTMapScale2;
|
|
DepthOrg = -UoverZstep * WallTMapScale2;
|
|
}
|
|
|
|
//
|
|
// R_CheckBBox
|
|
// Checks BSP node/subtree bounding box.
|
|
// Returns true if some part of the bbox might be visible.
|
|
//
|
|
extern "C" const int checkcoord[12][4] =
|
|
{
|
|
{3,0,2,1},
|
|
{3,0,2,0},
|
|
{3,1,2,0},
|
|
{0},
|
|
{2,0,2,1},
|
|
{0,0,0,0},
|
|
{3,1,3,0},
|
|
{0},
|
|
{2,0,3,1},
|
|
{2,1,3,1},
|
|
{2,1,3,0}
|
|
};
|
|
|
|
|
|
static bool R_CheckBBox (fixed_t *bspcoord) // killough 1/28/98: static
|
|
{
|
|
int boxx;
|
|
int boxy;
|
|
int boxpos;
|
|
|
|
fixed_t x1, y1, x2, y2;
|
|
fixed_t rx1, ry1, rx2, ry2;
|
|
int sx1, sx2;
|
|
|
|
cliprange_t* start;
|
|
|
|
// Find the corners of the box
|
|
// that define the edges from current viewpoint.
|
|
if (viewx <= bspcoord[BOXLEFT])
|
|
boxx = 0;
|
|
else if (viewx < bspcoord[BOXRIGHT])
|
|
boxx = 1;
|
|
else
|
|
boxx = 2;
|
|
|
|
if (viewy >= bspcoord[BOXTOP])
|
|
boxy = 0;
|
|
else if (viewy > bspcoord[BOXBOTTOM])
|
|
boxy = 1;
|
|
else
|
|
boxy = 2;
|
|
|
|
boxpos = (boxy<<2)+boxx;
|
|
if (boxpos == 5)
|
|
return true;
|
|
|
|
x1 = bspcoord[checkcoord[boxpos][0]] - viewx;
|
|
y1 = bspcoord[checkcoord[boxpos][1]] - viewy;
|
|
x2 = bspcoord[checkcoord[boxpos][2]] - viewx;
|
|
y2 = bspcoord[checkcoord[boxpos][3]] - viewy;
|
|
|
|
// check clip list for an open space
|
|
|
|
// Sitting on a line?
|
|
if (DMulScale32 (y1, x1-x2, x1, y2-y1) >= 0)
|
|
return true;
|
|
|
|
rx1 = DMulScale20 (x1, viewsin, -y1, viewcos);
|
|
rx2 = DMulScale20 (x2, viewsin, -y2, viewcos);
|
|
ry1 = DMulScale20 (x1, viewtancos, y1, viewtansin);
|
|
ry2 = DMulScale20 (x2, viewtancos, y2, viewtansin);
|
|
|
|
if (MirrorFlags & RF_XFLIP)
|
|
{
|
|
int t = 256-rx1;
|
|
rx1 = 256-rx2;
|
|
rx2 = t;
|
|
swapvalues (ry1, ry2);
|
|
}
|
|
|
|
if (rx1 >= -ry1)
|
|
{
|
|
if (rx1 > ry1) return false; // left edge is off the right side
|
|
if (ry1 == 0) return false;
|
|
sx1 = (centerxfrac + Scale (rx1, centerxfrac, ry1)) >> FRACBITS;
|
|
if (rx1 >= 0) sx1 = MIN<int> (viewwidth, sx1+1); // fix for signed divide
|
|
}
|
|
else
|
|
{
|
|
if (rx2 < -ry2) return false; // wall is off the left side
|
|
if (rx1 - rx2 - ry2 + ry1 == 0) return false; // wall does not intersect view volume
|
|
sx1 = 0;
|
|
}
|
|
|
|
if (rx2 <= ry2)
|
|
{
|
|
if (rx2 < -ry2) return false; // right edge is off the left side
|
|
if (ry2 == 0) return false;
|
|
sx2 = (centerxfrac + Scale (rx2, centerxfrac, ry2)) >> FRACBITS;
|
|
if (rx2 >= 0) sx2 = MIN<int> (viewwidth, sx2+1); // fix for signed divide
|
|
}
|
|
else
|
|
{
|
|
if (rx1 > ry1) return false; // wall is off the right side
|
|
if (ry2 - ry1 - rx2 + rx1 == 0) return false; // wall does not intersect view volume
|
|
sx2 = viewwidth;
|
|
}
|
|
|
|
// Find the first clippost that touches the source post
|
|
// (adjacent pixels are touching).
|
|
|
|
// Does not cross a pixel.
|
|
if (sx2 <= sx1)
|
|
return false;
|
|
|
|
start = solidsegs;
|
|
while (start->last < sx2)
|
|
start++;
|
|
|
|
if (sx1 >= start->first && sx2 <= start->last)
|
|
{
|
|
// The clippost contains the new span.
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void R_Subsector (subsector_t *sub);
|
|
static void R_AddPolyobjs(subsector_t *sub)
|
|
{
|
|
if (sub->BSP == NULL || sub->BSP->bDirty)
|
|
{
|
|
sub->BuildPolyBSP();
|
|
}
|
|
if (sub->BSP->Nodes.Size() == 0)
|
|
{
|
|
R_Subsector(&sub->BSP->Subsectors[0]);
|
|
}
|
|
else
|
|
{
|
|
R_RenderBSPNode(&sub->BSP->Nodes.Last());
|
|
}
|
|
}
|
|
|
|
// kg3D - add fake segs, never rendered
|
|
void R_FakeDrawLoop(subsector_t *sub)
|
|
{
|
|
int count;
|
|
seg_t* line;
|
|
|
|
count = sub->numlines;
|
|
line = sub->firstline;
|
|
|
|
while (count--)
|
|
{
|
|
if ((line->sidedef) && !(line->sidedef->Flags & WALLF_POLYOBJ))
|
|
{
|
|
R_AddLine (line);
|
|
}
|
|
line++;
|
|
}
|
|
}
|
|
|
|
//
|
|
// R_Subsector
|
|
// Determine floor/ceiling planes.
|
|
// Add sprites of things in sector.
|
|
// Draw one or more line segments.
|
|
//
|
|
void R_Subsector (subsector_t *sub)
|
|
{
|
|
int count;
|
|
seg_t* line;
|
|
sector_t tempsec; // killough 3/7/98: deep water hack
|
|
int floorlightlevel; // killough 3/16/98: set floor lightlevel
|
|
int ceilinglightlevel; // killough 4/11/98
|
|
bool outersubsector;
|
|
int fll, cll, position;
|
|
ASkyViewpoint *skybox;
|
|
|
|
// kg3D - fake floor stuff
|
|
visplane_t *backupfp;
|
|
visplane_t *backupcp;
|
|
//secplane_t templane;
|
|
lightlist_t *light;
|
|
|
|
if (InSubsector != NULL)
|
|
{ // InSubsector is not NULL. This means we are rendering from a mini-BSP.
|
|
outersubsector = false;
|
|
}
|
|
else
|
|
{
|
|
outersubsector = true;
|
|
InSubsector = sub;
|
|
}
|
|
|
|
#ifdef RANGECHECK
|
|
if (outersubsector && sub - subsectors >= (ptrdiff_t)numsubsectors)
|
|
I_Error ("R_Subsector: ss %ti with numss = %i", sub - subsectors, numsubsectors);
|
|
#endif
|
|
|
|
assert(sub->sector != NULL);
|
|
|
|
if (sub->polys)
|
|
{ // Render the polyobjs in the subsector first
|
|
R_AddPolyobjs(sub);
|
|
if (outersubsector)
|
|
{
|
|
InSubsector = NULL;
|
|
}
|
|
return;
|
|
}
|
|
|
|
frontsector = sub->sector;
|
|
frontsector->MoreFlags |= SECF_DRAWN;
|
|
count = sub->numlines;
|
|
line = sub->firstline;
|
|
|
|
// killough 3/8/98, 4/4/98: Deep water / fake ceiling effect
|
|
frontsector = R_FakeFlat(frontsector, &tempsec, &floorlightlevel,
|
|
&ceilinglightlevel, false); // killough 4/11/98
|
|
|
|
fll = floorlightlevel;
|
|
cll = ceilinglightlevel;
|
|
|
|
// [RH] set foggy flag
|
|
foggy = level.fadeto || frontsector->ColorMap->Fade || (level.flags & LEVEL_HASFADETABLE);
|
|
r_actualextralight = foggy ? 0 : extralight << 4;
|
|
|
|
// kg3D - fake lights
|
|
if (fixedlightlev < 0 && frontsector->e && frontsector->e->XFloor.lightlist.Size())
|
|
{
|
|
light = P_GetPlaneLight(frontsector, &frontsector->ceilingplane, false);
|
|
basecolormap = light->extra_colormap;
|
|
// If this is the real ceiling, don't discard plane lighting R_FakeFlat()
|
|
// accounted for.
|
|
if (light->p_lightlevel != &frontsector->lightlevel)
|
|
{
|
|
ceilinglightlevel = *light->p_lightlevel;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
basecolormap = frontsector->ColorMap;
|
|
}
|
|
|
|
skybox = frontsector->CeilingSkyBox != NULL ? frontsector->CeilingSkyBox : level.DefaultSkybox;
|
|
ceilingplane = frontsector->ceilingplane.PointOnSide(viewx, viewy, viewz) > 0 ||
|
|
frontsector->GetTexture(sector_t::ceiling) == skyflatnum ||
|
|
(skybox != NULL && skybox->bAlways) ||
|
|
(frontsector->heightsec &&
|
|
!(frontsector->heightsec->MoreFlags & SECF_IGNOREHEIGHTSEC) &&
|
|
frontsector->heightsec->GetTexture(sector_t::floor) == skyflatnum) ?
|
|
R_FindPlane(frontsector->ceilingplane, // killough 3/8/98
|
|
frontsector->GetTexture(sector_t::ceiling),
|
|
ceilinglightlevel + r_actualextralight, // killough 4/11/98
|
|
frontsector->GetAlpha(sector_t::ceiling),
|
|
!!(frontsector->GetFlags(sector_t::ceiling) & PLANEF_ADDITIVE),
|
|
frontsector->GetXOffset(sector_t::ceiling), // killough 3/7/98
|
|
frontsector->GetYOffset(sector_t::ceiling), // killough 3/7/98
|
|
frontsector->GetXScale(sector_t::ceiling),
|
|
frontsector->GetYScale(sector_t::ceiling),
|
|
frontsector->GetAngle(sector_t::ceiling),
|
|
frontsector->sky,
|
|
skybox
|
|
) : NULL;
|
|
|
|
if (fixedlightlev < 0 && frontsector->e && frontsector->e->XFloor.lightlist.Size())
|
|
{
|
|
light = P_GetPlaneLight(frontsector, &frontsector->floorplane, false);
|
|
basecolormap = light->extra_colormap;
|
|
// If this is the real floor, don't discard plane lighting R_FakeFlat()
|
|
// accounted for.
|
|
if (light->p_lightlevel != &frontsector->lightlevel)
|
|
{
|
|
floorlightlevel = *light->p_lightlevel;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
basecolormap = frontsector->ColorMap;
|
|
}
|
|
|
|
// killough 3/7/98: Add (x,y) offsets to flats, add deep water check
|
|
// killough 3/16/98: add floorlightlevel
|
|
// killough 10/98: add support for skies transferred from sidedefs
|
|
skybox = frontsector->FloorSkyBox != NULL ? frontsector->FloorSkyBox : level.DefaultSkybox;
|
|
floorplane = frontsector->floorplane.PointOnSide(viewx, viewy, viewz) > 0 || // killough 3/7/98
|
|
frontsector->GetTexture(sector_t::floor) == skyflatnum ||
|
|
(skybox != NULL && skybox->bAlways) ||
|
|
(frontsector->heightsec &&
|
|
!(frontsector->heightsec->MoreFlags & SECF_IGNOREHEIGHTSEC) &&
|
|
frontsector->heightsec->GetTexture(sector_t::ceiling) == skyflatnum) ?
|
|
R_FindPlane(frontsector->floorplane,
|
|
frontsector->GetTexture(sector_t::floor),
|
|
floorlightlevel + r_actualextralight, // killough 3/16/98
|
|
frontsector->GetAlpha(sector_t::floor),
|
|
!!(frontsector->GetFlags(sector_t::floor) & PLANEF_ADDITIVE),
|
|
frontsector->GetXOffset(sector_t::floor), // killough 3/7/98
|
|
frontsector->GetYOffset(sector_t::floor), // killough 3/7/98
|
|
frontsector->GetXScale(sector_t::floor),
|
|
frontsector->GetYScale(sector_t::floor),
|
|
frontsector->GetAngle(sector_t::floor),
|
|
frontsector->sky,
|
|
skybox
|
|
) : NULL;
|
|
|
|
// kg3D - fake planes rendering
|
|
if (r_3dfloors && frontsector->e && frontsector->e->XFloor.ffloors.Size())
|
|
{
|
|
backupfp = floorplane;
|
|
backupcp = ceilingplane;
|
|
// first check all floors
|
|
for (int i = 0; i < (int)frontsector->e->XFloor.ffloors.Size(); i++)
|
|
{
|
|
fakeFloor = frontsector->e->XFloor.ffloors[i];
|
|
if (!(fakeFloor->flags & FF_EXISTS)) continue;
|
|
if (!fakeFloor->model) continue;
|
|
if (fakeFloor->bottom.plane->a || fakeFloor->bottom.plane->b) continue;
|
|
if (!(fakeFloor->flags & FF_NOSHADE) || (fakeFloor->flags & (FF_RENDERPLANES|FF_RENDERSIDES)))
|
|
{
|
|
R_3D_AddHeight(fakeFloor->top.plane, frontsector);
|
|
}
|
|
if (!(fakeFloor->flags & FF_RENDERPLANES)) continue;
|
|
if (fakeFloor->alpha == 0) continue;
|
|
if (fakeFloor->flags & FF_THISINSIDE && fakeFloor->flags & FF_INVERTSECTOR) continue;
|
|
fakeAlpha = MIN(Scale(fakeFloor->alpha, OPAQUE, 255), OPAQUE);
|
|
if (fakeFloor->validcount != validcount)
|
|
{
|
|
fakeFloor->validcount = validcount;
|
|
R_3D_NewClip();
|
|
}
|
|
fakeHeight = fakeFloor->top.plane->ZatPoint(frontsector->soundorg[0], frontsector->soundorg[0]);
|
|
if (fakeHeight < viewz &&
|
|
fakeHeight > frontsector->floorplane.ZatPoint(frontsector->soundorg[0], frontsector->soundorg[1]))
|
|
{
|
|
fake3D = FAKE3D_FAKEFLOOR;
|
|
tempsec = *fakeFloor->model;
|
|
tempsec.floorplane = *fakeFloor->top.plane;
|
|
tempsec.ceilingplane = *fakeFloor->bottom.plane;
|
|
if (!(fakeFloor->flags & FF_THISINSIDE) && !(fakeFloor->flags & FF_INVERTSECTOR))
|
|
{
|
|
tempsec.SetTexture(sector_t::floor, tempsec.GetTexture(sector_t::ceiling));
|
|
position = sector_t::ceiling;
|
|
} else position = sector_t::floor;
|
|
frontsector = &tempsec;
|
|
|
|
if (fixedlightlev < 0 && sub->sector->e->XFloor.lightlist.Size())
|
|
{
|
|
light = P_GetPlaneLight(sub->sector, &frontsector->floorplane, false);
|
|
basecolormap = light->extra_colormap;
|
|
floorlightlevel = *light->p_lightlevel;
|
|
}
|
|
|
|
ceilingplane = NULL;
|
|
floorplane = R_FindPlane(frontsector->floorplane,
|
|
frontsector->GetTexture(sector_t::floor),
|
|
floorlightlevel + r_actualextralight, // killough 3/16/98
|
|
frontsector->GetAlpha(sector_t::floor),
|
|
!!(fakeFloor->flags & FF_ADDITIVETRANS),
|
|
frontsector->GetXOffset(position), // killough 3/7/98
|
|
frontsector->GetYOffset(position), // killough 3/7/98
|
|
frontsector->GetXScale(position),
|
|
frontsector->GetYScale(position),
|
|
frontsector->GetAngle(position),
|
|
frontsector->sky,
|
|
NULL);
|
|
|
|
R_FakeDrawLoop(sub);
|
|
fake3D = 0;
|
|
frontsector = sub->sector;
|
|
}
|
|
}
|
|
// and now ceilings
|
|
for (unsigned int i = 0; i < frontsector->e->XFloor.ffloors.Size(); i++)
|
|
{
|
|
fakeFloor = frontsector->e->XFloor.ffloors[i];
|
|
if (!(fakeFloor->flags & FF_EXISTS)) continue;
|
|
if (!fakeFloor->model) continue;
|
|
if (fakeFloor->top.plane->a || fakeFloor->top.plane->b) continue;
|
|
if (!(fakeFloor->flags & FF_NOSHADE) || (fakeFloor->flags & (FF_RENDERPLANES|FF_RENDERSIDES)))
|
|
{
|
|
R_3D_AddHeight(fakeFloor->bottom.plane, frontsector);
|
|
}
|
|
if (!(fakeFloor->flags & FF_RENDERPLANES)) continue;
|
|
if (fakeFloor->alpha == 0) continue;
|
|
if (!(fakeFloor->flags & FF_THISINSIDE) && (fakeFloor->flags & (FF_SWIMMABLE|FF_INVERTSECTOR)) == (FF_SWIMMABLE|FF_INVERTSECTOR)) continue;
|
|
fakeAlpha = MIN(Scale(fakeFloor->alpha, OPAQUE, 255), OPAQUE);
|
|
|
|
if (fakeFloor->validcount != validcount)
|
|
{
|
|
fakeFloor->validcount = validcount;
|
|
R_3D_NewClip();
|
|
}
|
|
fakeHeight = fakeFloor->bottom.plane->ZatPoint(frontsector->soundorg[0], frontsector->soundorg[1]);
|
|
if (fakeHeight > viewz &&
|
|
fakeHeight < frontsector->ceilingplane.ZatPoint(frontsector->soundorg[0], frontsector->soundorg[1]))
|
|
{
|
|
fake3D = FAKE3D_FAKECEILING;
|
|
tempsec = *fakeFloor->model;
|
|
tempsec.floorplane = *fakeFloor->top.plane;
|
|
tempsec.ceilingplane = *fakeFloor->bottom.plane;
|
|
if ((!(fakeFloor->flags & FF_THISINSIDE) && !(fakeFloor->flags & FF_INVERTSECTOR)) ||
|
|
(fakeFloor->flags & FF_THISINSIDE && fakeFloor->flags & FF_INVERTSECTOR))
|
|
{
|
|
tempsec.SetTexture(sector_t::ceiling, tempsec.GetTexture(sector_t::floor));
|
|
position = sector_t::floor;
|
|
} else position = sector_t::ceiling;
|
|
frontsector = &tempsec;
|
|
|
|
tempsec.ceilingplane.ChangeHeight(-1);
|
|
if (fixedlightlev < 0 && sub->sector->e->XFloor.lightlist.Size())
|
|
{
|
|
light = P_GetPlaneLight(sub->sector, &frontsector->ceilingplane, false);
|
|
basecolormap = light->extra_colormap;
|
|
ceilinglightlevel = *light->p_lightlevel;
|
|
}
|
|
tempsec.ceilingplane.ChangeHeight(1);
|
|
|
|
floorplane = NULL;
|
|
ceilingplane = R_FindPlane(frontsector->ceilingplane, // killough 3/8/98
|
|
frontsector->GetTexture(sector_t::ceiling),
|
|
ceilinglightlevel + r_actualextralight, // killough 4/11/98
|
|
frontsector->GetAlpha(sector_t::ceiling),
|
|
!!(fakeFloor->flags & FF_ADDITIVETRANS),
|
|
frontsector->GetXOffset(position), // killough 3/7/98
|
|
frontsector->GetYOffset(position), // killough 3/7/98
|
|
frontsector->GetXScale(position),
|
|
frontsector->GetYScale(position),
|
|
frontsector->GetAngle(position),
|
|
frontsector->sky,
|
|
NULL);
|
|
|
|
R_FakeDrawLoop(sub);
|
|
fake3D = 0;
|
|
frontsector = sub->sector;
|
|
}
|
|
}
|
|
fakeFloor = NULL;
|
|
floorplane = backupfp;
|
|
ceilingplane = backupcp;
|
|
}
|
|
|
|
basecolormap = frontsector->ColorMap;
|
|
floorlightlevel = fll;
|
|
ceilinglightlevel = cll;
|
|
|
|
// killough 9/18/98: Fix underwater slowdown, by passing real sector
|
|
// instead of fake one. Improve sprite lighting by basing sprite
|
|
// lightlevels on floor & ceiling lightlevels in the surrounding area.
|
|
// [RH] Handle sprite lighting like Duke 3D: If the ceiling is a sky, sprites are lit by
|
|
// it, otherwise they are lit by the floor.
|
|
R_AddSprites (sub->sector, frontsector->GetTexture(sector_t::ceiling) == skyflatnum ?
|
|
ceilinglightlevel : floorlightlevel, FakeSide);
|
|
|
|
// [RH] Add particles
|
|
if ((unsigned int)(sub - subsectors) < (unsigned int)numsubsectors)
|
|
{ // Only do it for the main BSP.
|
|
int shade = LIGHT2SHADE((floorlightlevel + ceilinglightlevel)/2 + r_actualextralight);
|
|
for (WORD i = ParticlesInSubsec[(unsigned int)(sub-subsectors)]; i != NO_PARTICLE; i = Particles[i].snext)
|
|
{
|
|
R_ProjectParticle (Particles + i, subsectors[sub-subsectors].sector, shade, FakeSide);
|
|
}
|
|
}
|
|
|
|
count = sub->numlines;
|
|
line = sub->firstline;
|
|
|
|
while (count--)
|
|
{
|
|
if (!outersubsector || line->sidedef == NULL || !(line->sidedef->Flags & WALLF_POLYOBJ))
|
|
{
|
|
// kg3D - fake planes bounding calculation
|
|
if (r_3dfloors && line->backsector && frontsector->e && line->backsector->e->XFloor.ffloors.Size())
|
|
{
|
|
backupfp = floorplane;
|
|
backupcp = ceilingplane;
|
|
floorplane = NULL;
|
|
ceilingplane = NULL;
|
|
for (unsigned int i = 0; i < line->backsector->e->XFloor.ffloors.Size(); i++)
|
|
{
|
|
fakeFloor = line->backsector->e->XFloor.ffloors[i];
|
|
if (!(fakeFloor->flags & FF_EXISTS)) continue;
|
|
if (!(fakeFloor->flags & FF_RENDERPLANES)) continue;
|
|
if (!fakeFloor->model) continue;
|
|
fake3D = FAKE3D_FAKEBACK;
|
|
tempsec = *fakeFloor->model;
|
|
tempsec.floorplane = *fakeFloor->top.plane;
|
|
tempsec.ceilingplane = *fakeFloor->bottom.plane;
|
|
backsector = &tempsec;
|
|
if (fakeFloor->validcount != validcount)
|
|
{
|
|
fakeFloor->validcount = validcount;
|
|
R_3D_NewClip();
|
|
}
|
|
if (frontsector->CenterFloor() >= backsector->CenterFloor())
|
|
{
|
|
fake3D |= FAKE3D_CLIPBOTFRONT;
|
|
}
|
|
if (frontsector->CenterCeiling() <= backsector->CenterCeiling())
|
|
{
|
|
fake3D |= FAKE3D_CLIPTOPFRONT;
|
|
}
|
|
R_AddLine(line); // fake
|
|
}
|
|
fakeFloor = NULL;
|
|
fake3D = 0;
|
|
floorplane = backupfp;
|
|
ceilingplane = backupcp;
|
|
}
|
|
R_AddLine (line); // now real
|
|
}
|
|
line++;
|
|
}
|
|
if (outersubsector)
|
|
{
|
|
InSubsector = NULL;
|
|
}
|
|
}
|
|
|
|
//
|
|
// RenderBSPNode
|
|
// Renders all subsectors below a given node, traversing subtree recursively.
|
|
// Just call with BSP root and -1.
|
|
// killough 5/2/98: reformatted, removed tail recursion
|
|
|
|
void R_RenderBSPNode (void *node)
|
|
{
|
|
if (numnodes == 0)
|
|
{
|
|
R_Subsector (subsectors);
|
|
return;
|
|
}
|
|
while (!((size_t)node & 1)) // Keep going until found a subsector
|
|
{
|
|
node_t *bsp = (node_t *)node;
|
|
|
|
// Decide which side the view point is on.
|
|
int side = R_PointOnSide (viewx, viewy, bsp);
|
|
|
|
// Recursively divide front space (toward the viewer).
|
|
R_RenderBSPNode (bsp->children[side]);
|
|
|
|
// Possibly divide back space (away from the viewer).
|
|
side ^= 1;
|
|
if (!R_CheckBBox (bsp->bbox[side]))
|
|
return;
|
|
|
|
node = bsp->children[side];
|
|
}
|
|
R_Subsector ((subsector_t *)((BYTE *)node - 1));
|
|
}
|