mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-08 22:11:09 +00:00
1074 lines
24 KiB
C++
1074 lines
24 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.
|
|
//
|
|
// $Log:$
|
|
//
|
|
// DESCRIPTION:
|
|
// Sector utility functions.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include "p_spec.h"
|
|
#include "c_cvars.h"
|
|
#include "doomstat.h"
|
|
#include "g_level.h"
|
|
#include "nodebuild.h"
|
|
#include "p_terrain.h"
|
|
#include "po_man.h"
|
|
#include "farchive.h"
|
|
#include "r_utility.h"
|
|
#include "a_sharedglobal.h"
|
|
#include "r_data/colormaps.h"
|
|
|
|
|
|
// [RH]
|
|
// P_NextSpecialSector()
|
|
//
|
|
// Returns the next special sector attached to this sector
|
|
// with a certain special.
|
|
sector_t *sector_t::NextSpecialSector (int type, sector_t *nogood) const
|
|
{
|
|
sector_t *tsec;
|
|
int i;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
line_t *ln = lines[i];
|
|
|
|
if (NULL != (tsec = getNextSector (ln, this)) &&
|
|
tsec != nogood &&
|
|
tsec->special == type)
|
|
{
|
|
return tsec;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
//
|
|
// P_FindLowestFloorSurrounding()
|
|
// FIND LOWEST FLOOR HEIGHT IN SURROUNDING SECTORS
|
|
//
|
|
fixed_t sector_t::FindLowestFloorSurrounding (vertex_t **v) const
|
|
{
|
|
int i;
|
|
sector_t *other;
|
|
line_t *check;
|
|
fixed_t floor;
|
|
fixed_t ofloor;
|
|
vertex_t *spot;
|
|
|
|
if (linecount == 0) return GetPlaneTexZ(sector_t::floor);
|
|
|
|
spot = lines[0]->v1;
|
|
floor = floorplane.ZatPoint (spot);
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
check = lines[i];
|
|
if (NULL != (other = getNextSector (check, this)))
|
|
{
|
|
ofloor = other->floorplane.ZatPoint (check->v1);
|
|
if (ofloor < floor && ofloor < floorplane.ZatPoint (check->v1))
|
|
{
|
|
floor = ofloor;
|
|
spot = check->v1;
|
|
}
|
|
ofloor = other->floorplane.ZatPoint (check->v2);
|
|
if (ofloor < floor && ofloor < floorplane.ZatPoint (check->v2))
|
|
{
|
|
floor = ofloor;
|
|
spot = check->v2;
|
|
}
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return floor;
|
|
}
|
|
|
|
|
|
|
|
//
|
|
// P_FindHighestFloorSurrounding()
|
|
// FIND HIGHEST FLOOR HEIGHT IN SURROUNDING SECTORS
|
|
//
|
|
fixed_t sector_t::FindHighestFloorSurrounding (vertex_t **v) const
|
|
{
|
|
int i;
|
|
line_t *check;
|
|
sector_t *other;
|
|
fixed_t floor;
|
|
fixed_t ofloor;
|
|
vertex_t *spot;
|
|
|
|
if (linecount == 0) return GetPlaneTexZ(sector_t::floor);
|
|
|
|
spot = lines[0]->v1;
|
|
floor = FIXED_MIN;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
check = lines[i];
|
|
if (NULL != (other = getNextSector (check, this)))
|
|
{
|
|
ofloor = other->floorplane.ZatPoint (check->v1);
|
|
if (ofloor > floor)
|
|
{
|
|
floor = ofloor;
|
|
spot = check->v1;
|
|
}
|
|
ofloor = other->floorplane.ZatPoint (check->v2);
|
|
if (ofloor > floor)
|
|
{
|
|
floor = ofloor;
|
|
spot = check->v2;
|
|
}
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return floor;
|
|
}
|
|
|
|
|
|
|
|
//
|
|
// P_FindNextHighestFloor()
|
|
//
|
|
// Passed a sector and a floor height, returns the fixed point value
|
|
// of the smallest floor height in a surrounding sector larger than
|
|
// the floor height passed. If no such height exists the floorheight
|
|
// passed is returned.
|
|
//
|
|
// Rewritten by Lee Killough to avoid fixed array and to be faster
|
|
//
|
|
fixed_t sector_t::FindNextHighestFloor (vertex_t **v) const
|
|
{
|
|
fixed_t height;
|
|
fixed_t heightdiff;
|
|
fixed_t ofloor, floor;
|
|
sector_t *other;
|
|
vertex_t *spot;
|
|
line_t *check;
|
|
int i;
|
|
|
|
if (linecount == 0) return GetPlaneTexZ(sector_t::floor);
|
|
|
|
spot = lines[0]->v1;
|
|
height = floorplane.ZatPoint (spot);
|
|
heightdiff = FIXED_MAX;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
check = lines[i];
|
|
if (NULL != (other = getNextSector (check, this)))
|
|
{
|
|
ofloor = other->floorplane.ZatPoint (check->v1);
|
|
floor = floorplane.ZatPoint (check->v1);
|
|
if (ofloor > floor && ofloor - floor < heightdiff && !IsLinked(other, false))
|
|
{
|
|
heightdiff = ofloor - floor;
|
|
height = ofloor;
|
|
spot = check->v1;
|
|
}
|
|
ofloor = other->floorplane.ZatPoint (check->v2);
|
|
floor = floorplane.ZatPoint (check->v2);
|
|
if (ofloor > floor && ofloor - floor < heightdiff && !IsLinked(other, false))
|
|
{
|
|
heightdiff = ofloor - floor;
|
|
height = ofloor;
|
|
spot = check->v2;
|
|
}
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return height;
|
|
}
|
|
|
|
|
|
//
|
|
// P_FindNextLowestFloor()
|
|
//
|
|
// Passed a sector and a floor height, returns the fixed point value
|
|
// of the largest floor height in a surrounding sector smaller than
|
|
// the floor height passed. If no such height exists the floorheight
|
|
// passed is returned.
|
|
//
|
|
// jff 02/03/98 Twiddled Lee's P_FindNextHighestFloor to make this
|
|
//
|
|
fixed_t sector_t::FindNextLowestFloor (vertex_t **v) const
|
|
{
|
|
fixed_t height;
|
|
fixed_t heightdiff;
|
|
fixed_t ofloor, floor;
|
|
sector_t *other;
|
|
vertex_t *spot;
|
|
line_t *check;
|
|
int i;
|
|
|
|
if (linecount == 0) return GetPlaneTexZ(sector_t::floor);
|
|
|
|
spot = lines[0]->v1;
|
|
height = floorplane.ZatPoint (spot);
|
|
heightdiff = FIXED_MAX;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
check = lines[i];
|
|
if (NULL != (other = getNextSector (check, this)))
|
|
{
|
|
ofloor = other->floorplane.ZatPoint (check->v1);
|
|
floor = floorplane.ZatPoint (check->v1);
|
|
if (ofloor < floor && floor - ofloor < heightdiff && !IsLinked(other, false))
|
|
{
|
|
heightdiff = floor - ofloor;
|
|
height = ofloor;
|
|
spot = check->v1;
|
|
}
|
|
ofloor = other->floorplane.ZatPoint (check->v2);
|
|
floor = floorplane.ZatPoint (check->v2);
|
|
if (ofloor < floor && floor - ofloor < heightdiff && !IsLinked(other, false))
|
|
{
|
|
heightdiff = floor - ofloor;
|
|
height = ofloor;
|
|
spot = check->v2;
|
|
}
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return height;
|
|
}
|
|
|
|
//
|
|
// P_FindNextLowestCeiling()
|
|
//
|
|
// Passed a sector and a ceiling height, returns the fixed point value
|
|
// of the largest ceiling height in a surrounding sector smaller than
|
|
// the ceiling height passed. If no such height exists the ceiling height
|
|
// passed is returned.
|
|
//
|
|
// jff 02/03/98 Twiddled Lee's P_FindNextHighestFloor to make this
|
|
//
|
|
fixed_t sector_t::FindNextLowestCeiling (vertex_t **v) const
|
|
{
|
|
fixed_t height;
|
|
fixed_t heightdiff;
|
|
fixed_t oceil, ceil;
|
|
sector_t *other;
|
|
vertex_t *spot;
|
|
line_t *check;
|
|
int i;
|
|
|
|
|
|
if (linecount == 0) return GetPlaneTexZ(sector_t::ceiling);
|
|
|
|
spot = lines[0]->v1;
|
|
height = ceilingplane.ZatPoint (spot);
|
|
heightdiff = FIXED_MAX;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
check = lines[i];
|
|
if (NULL != (other = getNextSector (check, this)))
|
|
{
|
|
oceil = other->ceilingplane.ZatPoint (check->v1);
|
|
ceil = ceilingplane.ZatPoint (check->v1);
|
|
if (oceil < ceil && ceil - oceil < heightdiff && !IsLinked(other, true))
|
|
{
|
|
heightdiff = ceil - oceil;
|
|
height = oceil;
|
|
spot = check->v1;
|
|
}
|
|
oceil = other->ceilingplane.ZatPoint (check->v2);
|
|
ceil = ceilingplane.ZatPoint (check->v2);
|
|
if (oceil < ceil && ceil - oceil < heightdiff && !IsLinked(other, true))
|
|
{
|
|
heightdiff = ceil - oceil;
|
|
height = oceil;
|
|
spot = check->v2;
|
|
}
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return height;
|
|
}
|
|
|
|
//
|
|
// P_FindNextHighestCeiling()
|
|
//
|
|
// Passed a sector and a ceiling height, returns the fixed point value
|
|
// of the smallest ceiling height in a surrounding sector larger than
|
|
// the ceiling height passed. If no such height exists the ceiling height
|
|
// passed is returned.
|
|
//
|
|
// jff 02/03/98 Twiddled Lee's P_FindNextHighestFloor to make this
|
|
//
|
|
fixed_t sector_t::FindNextHighestCeiling (vertex_t **v) const
|
|
{
|
|
fixed_t height;
|
|
fixed_t heightdiff;
|
|
fixed_t oceil, ceil;
|
|
sector_t *other;
|
|
vertex_t *spot;
|
|
line_t *check;
|
|
int i;
|
|
|
|
if (linecount == 0) return GetPlaneTexZ(sector_t::ceiling);
|
|
|
|
spot = lines[0]->v1;
|
|
height = ceilingplane.ZatPoint (spot);
|
|
heightdiff = FIXED_MAX;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
check = lines[i];
|
|
if (NULL != (other = getNextSector (check, this)))
|
|
{
|
|
oceil = other->ceilingplane.ZatPoint (check->v1);
|
|
ceil = ceilingplane.ZatPoint (check->v1);
|
|
if (oceil > ceil && oceil - ceil < heightdiff && !IsLinked(other, true))
|
|
{
|
|
heightdiff = oceil - ceil;
|
|
height = oceil;
|
|
spot = check->v1;
|
|
}
|
|
oceil = other->ceilingplane.ZatPoint (check->v2);
|
|
ceil = ceilingplane.ZatPoint (check->v2);
|
|
if (oceil > ceil && oceil - ceil < heightdiff && !IsLinked(other, true))
|
|
{
|
|
heightdiff = oceil - ceil;
|
|
height = oceil;
|
|
spot = check->v2;
|
|
}
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return height;
|
|
}
|
|
|
|
//
|
|
// FIND LOWEST CEILING IN THE SURROUNDING SECTORS
|
|
//
|
|
fixed_t sector_t::FindLowestCeilingSurrounding (vertex_t **v) const
|
|
{
|
|
fixed_t height;
|
|
fixed_t oceil;
|
|
sector_t *other;
|
|
vertex_t *spot;
|
|
line_t *check;
|
|
int i;
|
|
|
|
if (linecount == 0) return GetPlaneTexZ(sector_t::ceiling);
|
|
|
|
spot = lines[0]->v1;
|
|
height = FIXED_MAX;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
check = lines[i];
|
|
if (NULL != (other = getNextSector (check, this)))
|
|
{
|
|
oceil = other->ceilingplane.ZatPoint (check->v1);
|
|
if (oceil < height)
|
|
{
|
|
height = oceil;
|
|
spot = check->v1;
|
|
}
|
|
oceil = other->ceilingplane.ZatPoint (check->v2);
|
|
if (oceil < height)
|
|
{
|
|
height = oceil;
|
|
spot = check->v2;
|
|
}
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return height;
|
|
}
|
|
|
|
|
|
//
|
|
// FIND HIGHEST CEILING IN THE SURROUNDING SECTORS
|
|
//
|
|
fixed_t sector_t::FindHighestCeilingSurrounding (vertex_t **v) const
|
|
{
|
|
fixed_t height;
|
|
fixed_t oceil;
|
|
sector_t *other;
|
|
vertex_t *spot;
|
|
line_t *check;
|
|
int i;
|
|
|
|
if (linecount == 0) return GetPlaneTexZ(sector_t::ceiling);
|
|
|
|
spot = lines[0]->v1;
|
|
height = FIXED_MIN;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
check = lines[i];
|
|
if (NULL != (other = getNextSector (check, this)))
|
|
{
|
|
oceil = other->ceilingplane.ZatPoint (check->v1);
|
|
if (oceil > height)
|
|
{
|
|
height = oceil;
|
|
spot = check->v1;
|
|
}
|
|
oceil = other->ceilingplane.ZatPoint (check->v2);
|
|
if (oceil > height)
|
|
{
|
|
height = oceil;
|
|
spot = check->v2;
|
|
}
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return height;
|
|
}
|
|
|
|
//
|
|
// P_FindShortestTextureAround()
|
|
//
|
|
// Passed a sector number, returns the shortest lower texture on a
|
|
// linedef bounding the sector.
|
|
//
|
|
// jff 02/03/98 Add routine to find shortest lower texture
|
|
//
|
|
|
|
static inline void CheckShortestTex (FTextureID texnum, fixed_t &minsize)
|
|
{
|
|
if (texnum.isValid() || (texnum.isNull() && (i_compatflags & COMPATF_SHORTTEX)))
|
|
{
|
|
FTexture *tex = TexMan[texnum];
|
|
if (tex != NULL)
|
|
{
|
|
fixed_t h = tex->GetScaledHeight()<<FRACBITS;
|
|
if (h < minsize)
|
|
{
|
|
minsize = h;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fixed_t sector_t::FindShortestTextureAround () const
|
|
{
|
|
fixed_t minsize = FIXED_MAX;
|
|
|
|
for (int i = 0; i < linecount; i++)
|
|
{
|
|
if (lines[i]->flags & ML_TWOSIDED)
|
|
{
|
|
CheckShortestTex (lines[i]->sidedef[0]->GetTexture(side_t::bottom), minsize);
|
|
CheckShortestTex (lines[i]->sidedef[1]->GetTexture(side_t::bottom), minsize);
|
|
}
|
|
}
|
|
return minsize < FIXED_MAX ? minsize : TexMan[0]->GetHeight() * FRACUNIT;
|
|
}
|
|
|
|
|
|
//
|
|
// P_FindShortestUpperAround()
|
|
//
|
|
// Passed a sector number, returns the shortest upper texture on a
|
|
// linedef bounding the sector.
|
|
//
|
|
// Note: If no upper texture exists MAXINT is returned.
|
|
//
|
|
// jff 03/20/98 Add routine to find shortest upper texture
|
|
//
|
|
fixed_t sector_t::FindShortestUpperAround () const
|
|
{
|
|
fixed_t minsize = FIXED_MAX;
|
|
|
|
for (int i = 0; i < linecount; i++)
|
|
{
|
|
if (lines[i]->flags & ML_TWOSIDED)
|
|
{
|
|
CheckShortestTex (lines[i]->sidedef[0]->GetTexture(side_t::top), minsize);
|
|
CheckShortestTex (lines[i]->sidedef[1]->GetTexture(side_t::top), minsize);
|
|
}
|
|
}
|
|
return minsize < FIXED_MAX ? minsize : TexMan[0]->GetHeight() * FRACUNIT;
|
|
}
|
|
|
|
|
|
//
|
|
// P_FindModelFloorSector()
|
|
//
|
|
// Passed a floor height and a sector number, return a pointer to a
|
|
// a sector with that floor height across the lowest numbered two sided
|
|
// line surrounding the sector.
|
|
//
|
|
// Note: If no sector at that height bounds the sector passed, return NULL
|
|
//
|
|
// jff 02/03/98 Add routine to find numeric model floor
|
|
// around a sector specified by sector number
|
|
// jff 3/14/98 change first parameter to plain height to allow call
|
|
// from routine not using floormove_t
|
|
//
|
|
sector_t *sector_t::FindModelFloorSector (fixed_t floordestheight) const
|
|
{
|
|
int i;
|
|
sector_t *sec;
|
|
|
|
//jff 5/23/98 don't disturb sec->linecount while searching
|
|
// but allow early exit in old demos
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
sec = getNextSector (lines[i], this);
|
|
if (sec != NULL &&
|
|
(sec->floorplane.ZatPoint (lines[i]->v1) == floordestheight ||
|
|
sec->floorplane.ZatPoint (lines[i]->v2) == floordestheight))
|
|
{
|
|
return sec;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
//
|
|
// P_FindModelCeilingSector()
|
|
//
|
|
// Passed a ceiling height and a sector number, return a pointer to a
|
|
// a sector with that ceiling height across the lowest numbered two sided
|
|
// line surrounding the sector.
|
|
//
|
|
// Note: If no sector at that height bounds the sector passed, return NULL
|
|
//
|
|
// jff 02/03/98 Add routine to find numeric model ceiling
|
|
// around a sector specified by sector number
|
|
// used only from generalized ceiling types
|
|
// jff 3/14/98 change first parameter to plain height to allow call
|
|
// from routine not using ceiling_t
|
|
//
|
|
sector_t *sector_t::FindModelCeilingSector (fixed_t floordestheight) const
|
|
{
|
|
int i;
|
|
sector_t *sec;
|
|
|
|
//jff 5/23/98 don't disturb sec->linecount while searching
|
|
// but allow early exit in old demos
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
sec = getNextSector (lines[i], this);
|
|
if (sec != NULL &&
|
|
(sec->ceilingplane.ZatPoint (lines[i]->v1) == floordestheight ||
|
|
sec->ceilingplane.ZatPoint (lines[i]->v2) == floordestheight))
|
|
{
|
|
return sec;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
//
|
|
// Find minimum light from an adjacent sector
|
|
//
|
|
int sector_t::FindMinSurroundingLight (int min) const
|
|
{
|
|
int i;
|
|
line_t* line;
|
|
sector_t* check;
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
line = lines[i];
|
|
if (NULL != (check = getNextSector (line, this)) &&
|
|
check->lightlevel < min)
|
|
{
|
|
min = check->lightlevel;
|
|
}
|
|
}
|
|
return min;
|
|
}
|
|
|
|
//
|
|
// Find the highest point on the floor of the sector
|
|
//
|
|
fixed_t sector_t::FindHighestFloorPoint (vertex_t **v) const
|
|
{
|
|
int i;
|
|
line_t *line;
|
|
fixed_t height = FIXED_MIN;
|
|
fixed_t probeheight;
|
|
vertex_t *spot = NULL;
|
|
|
|
if ((floorplane.a | floorplane.b) == 0)
|
|
{
|
|
if (v != NULL)
|
|
{
|
|
if (linecount == 0) *v = &vertexes[0];
|
|
else *v = lines[0]->v1;
|
|
}
|
|
return -floorplane.d;
|
|
}
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
line = lines[i];
|
|
probeheight = floorplane.ZatPoint (line->v1);
|
|
if (probeheight > height)
|
|
{
|
|
height = probeheight;
|
|
spot = line->v1;
|
|
}
|
|
probeheight = floorplane.ZatPoint (line->v2);
|
|
if (probeheight > height)
|
|
{
|
|
height = probeheight;
|
|
spot = line->v2;
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return height;
|
|
}
|
|
|
|
//
|
|
// Find the lowest point on the ceiling of the sector
|
|
//
|
|
fixed_t sector_t::FindLowestCeilingPoint (vertex_t **v) const
|
|
{
|
|
int i;
|
|
line_t *line;
|
|
fixed_t height = FIXED_MAX;
|
|
fixed_t probeheight;
|
|
vertex_t *spot = NULL;
|
|
|
|
if ((ceilingplane.a | ceilingplane.b) == 0)
|
|
{
|
|
if (v != NULL)
|
|
{
|
|
if (linecount == 0) *v = &vertexes[0];
|
|
else *v = lines[0]->v1;
|
|
}
|
|
return ceilingplane.d;
|
|
}
|
|
|
|
for (i = 0; i < linecount; i++)
|
|
{
|
|
line = lines[i];
|
|
probeheight = ceilingplane.ZatPoint (line->v1);
|
|
if (probeheight < height)
|
|
{
|
|
height = probeheight;
|
|
spot = line->v1;
|
|
}
|
|
probeheight = ceilingplane.ZatPoint (line->v2);
|
|
if (probeheight < height)
|
|
{
|
|
height = probeheight;
|
|
spot = line->v2;
|
|
}
|
|
}
|
|
if (v != NULL)
|
|
*v = spot;
|
|
return height;
|
|
}
|
|
|
|
|
|
void sector_t::SetColor(int r, int g, int b, int desat)
|
|
{
|
|
PalEntry color = PalEntry (r,g,b);
|
|
ColorMap = GetSpecialLights (color, ColorMap->Fade, desat);
|
|
P_RecalculateAttachedLights(this);
|
|
}
|
|
|
|
void sector_t::SetFade(int r, int g, int b)
|
|
{
|
|
PalEntry fade = PalEntry (r,g,b);
|
|
ColorMap = GetSpecialLights (ColorMap->Color, fade, ColorMap->Desaturate);
|
|
P_RecalculateAttachedLights(this);
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// sector_t :: ClosestPoint
|
|
//
|
|
// Given a point (x,y), returns the point (ox,oy) on the sector's defining
|
|
// lines that is nearest to (x,y).
|
|
//
|
|
//===========================================================================
|
|
|
|
void sector_t::ClosestPoint(fixed_t fx, fixed_t fy, fixed_t &ox, fixed_t &oy) const
|
|
{
|
|
int i;
|
|
double x = fx, y = fy;
|
|
double bestdist = HUGE_VAL;
|
|
double bestx = 0, besty = 0;
|
|
|
|
for (i = 0; i < linecount; ++i)
|
|
{
|
|
vertex_t *v1 = lines[i]->v1;
|
|
vertex_t *v2 = lines[i]->v2;
|
|
double a = v2->x - v1->x;
|
|
double b = v2->y - v1->y;
|
|
double den = a*a + b*b;
|
|
double ix, iy, dist;
|
|
|
|
if (den == 0)
|
|
{ // Line is actually a point!
|
|
ix = v1->x;
|
|
iy = v1->y;
|
|
}
|
|
else
|
|
{
|
|
double num = (x - v1->x) * a + (y - v1->y) * b;
|
|
double u = num / den;
|
|
if (u <= 0)
|
|
{
|
|
ix = v1->x;
|
|
iy = v1->y;
|
|
}
|
|
else if (u >= 1)
|
|
{
|
|
ix = v2->x;
|
|
iy = v2->y;
|
|
}
|
|
else
|
|
{
|
|
ix = v1->x + u * a;
|
|
iy = v1->y + u * b;
|
|
}
|
|
}
|
|
a = (ix - x);
|
|
b = (iy - y);
|
|
dist = a*a + b*b;
|
|
if (dist < bestdist)
|
|
{
|
|
bestdist = dist;
|
|
bestx = ix;
|
|
besty = iy;
|
|
}
|
|
}
|
|
ox = fixed_t(bestx);
|
|
oy = fixed_t(besty);
|
|
}
|
|
|
|
|
|
bool sector_t::PlaneMoving(int pos)
|
|
{
|
|
if (pos == floor)
|
|
return (floordata != NULL || (planes[floor].Flags & PLANEF_BLOCKED));
|
|
else
|
|
return (ceilingdata != NULL || (planes[ceiling].Flags & PLANEF_BLOCKED));
|
|
}
|
|
|
|
|
|
int sector_t::GetFloorLight () const
|
|
{
|
|
if (GetFlags(sector_t::floor) & PLANEF_ABSLIGHTING)
|
|
{
|
|
return GetPlaneLight(floor);
|
|
}
|
|
else
|
|
{
|
|
return ClampLight(lightlevel + GetPlaneLight(floor));
|
|
}
|
|
}
|
|
|
|
int sector_t::GetCeilingLight () const
|
|
{
|
|
if (GetFlags(ceiling) & PLANEF_ABSLIGHTING)
|
|
{
|
|
return GetPlaneLight(ceiling);
|
|
}
|
|
else
|
|
{
|
|
return ClampLight(lightlevel + GetPlaneLight(ceiling));
|
|
}
|
|
}
|
|
|
|
|
|
ASkyViewpoint *sector_t::GetSkyBox(int which)
|
|
{
|
|
if (SkyBoxes[which] != NULL) return SkyBoxes[which];
|
|
if (MoreFlags & (SECF_NOFLOORSKYBOX << which)) return NULL;
|
|
return level.DefaultSkybox;
|
|
}
|
|
|
|
|
|
sector_t *sector_t::GetHeightSec() const
|
|
{
|
|
if (heightsec == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (heightsec->MoreFlags & SECF_IGNOREHEIGHTSEC)
|
|
{
|
|
return NULL;
|
|
}
|
|
if (e && e->XFloor.ffloors.Size())
|
|
{
|
|
// If any of these fake floors render their planes, ignore heightsec.
|
|
for (unsigned i = e->XFloor.ffloors.Size(); i-- > 0; )
|
|
{
|
|
if ((e->XFloor.ffloors[i]->flags & (FF_EXISTS | FF_RENDERPLANES)) == (FF_EXISTS | FF_RENDERPLANES))
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
return heightsec;
|
|
}
|
|
|
|
|
|
void sector_t::GetSpecial(secspecial_t *spec)
|
|
{
|
|
spec->special = special;
|
|
spec->damageamount = damageamount;
|
|
spec->damagetype = damagetype;
|
|
spec->damageinterval = damageinterval;
|
|
spec->leakydamage = leakydamage;
|
|
spec->Flags = Flags & SECF_SPECIALFLAGS;
|
|
}
|
|
|
|
void sector_t::SetSpecial(const secspecial_t *spec)
|
|
{
|
|
special = spec->special;
|
|
damageamount = spec->damageamount;
|
|
damagetype = spec->damagetype;
|
|
damageinterval = spec->damageinterval;
|
|
leakydamage = spec->leakydamage;
|
|
Flags = (Flags & ~SECF_SPECIALFLAGS) | (spec->Flags & SECF_SPECIALFLAGS);
|
|
}
|
|
|
|
void sector_t::TransferSpecial(sector_t *model)
|
|
{
|
|
special = model->special;
|
|
damageamount = model->damageamount;
|
|
damagetype = model->damagetype;
|
|
damageinterval = model->damageinterval;
|
|
leakydamage = model->leakydamage;
|
|
Flags = (Flags&~SECF_SPECIALFLAGS) | (model->Flags & SECF_SPECIALFLAGS);
|
|
}
|
|
|
|
int sector_t::GetTerrain(int pos) const
|
|
{
|
|
return terrainnum[pos] >= 0 ? terrainnum[pos] : TerrainTypes[GetTexture(pos)];
|
|
}
|
|
|
|
FArchive &operator<< (FArchive &arc, secspecial_t &p)
|
|
{
|
|
if (SaveVersion < 4529)
|
|
{
|
|
int special;
|
|
arc << special;
|
|
sector_t sec;
|
|
P_InitSectorSpecial(&sec, special, true);
|
|
sec.GetSpecial(&p);
|
|
}
|
|
else
|
|
{
|
|
arc << p.special
|
|
<< p.damageamount
|
|
<< p.damagetype
|
|
<< p.damageinterval
|
|
<< p.leakydamage
|
|
<< p.Flags;
|
|
}
|
|
return arc;
|
|
}
|
|
|
|
|
|
|
|
bool secplane_t::CopyPlaneIfValid (secplane_t *dest, const secplane_t *opp) const
|
|
{
|
|
bool copy = false;
|
|
|
|
// If the planes do not have matching slopes, then always copy them
|
|
// because clipping would require creating new sectors.
|
|
if (a != dest->a || b != dest->b || c != dest->c)
|
|
{
|
|
copy = true;
|
|
}
|
|
else if (opp->a != -dest->a || opp->b != -dest->b || opp->c != -dest->c)
|
|
{
|
|
if (d < dest->d)
|
|
{
|
|
copy = true;
|
|
}
|
|
}
|
|
else if (d < dest->d && d > -opp->d)
|
|
{
|
|
copy = true;
|
|
}
|
|
|
|
if (copy)
|
|
{
|
|
*dest = *this;
|
|
}
|
|
|
|
return copy;
|
|
}
|
|
|
|
FArchive &operator<< (FArchive &arc, secplane_t &plane)
|
|
{
|
|
arc << plane.a << plane.b << plane.c << plane.d;
|
|
//if (plane.c != 0)
|
|
{ // plane.c should always be non-0. Otherwise, the plane
|
|
// would be perfectly vertical.
|
|
plane.ic = DivScale32 (1, plane.c);
|
|
}
|
|
return arc;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// P_AlignFlat
|
|
//
|
|
//==========================================================================
|
|
|
|
bool P_AlignFlat (int linenum, int side, int fc)
|
|
{
|
|
line_t *line = lines + linenum;
|
|
sector_t *sec = side ? line->backsector : line->frontsector;
|
|
|
|
if (!sec)
|
|
return false;
|
|
|
|
fixed_t x = line->v1->x;
|
|
fixed_t y = line->v1->y;
|
|
|
|
angle_t angle = R_PointToAngle2 (x, y, line->v2->x, line->v2->y);
|
|
angle_t norm = (angle-ANGLE_90) >> ANGLETOFINESHIFT;
|
|
|
|
fixed_t dist = -DMulScale16 (finecosine[norm], x, finesine[norm], y);
|
|
|
|
if (side)
|
|
{
|
|
angle = angle + ANGLE_180;
|
|
dist = -dist;
|
|
}
|
|
|
|
sec->SetBase(fc, dist & ((1<<(FRACBITS+8))-1), 0-angle);
|
|
return true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// P_BuildPolyBSP
|
|
//
|
|
//==========================================================================
|
|
static FNodeBuilder::FLevel PolyNodeLevel;
|
|
static FNodeBuilder PolyNodeBuilder(PolyNodeLevel);
|
|
|
|
void subsector_t::BuildPolyBSP()
|
|
{
|
|
assert((BSP == NULL || BSP->bDirty) && "BSP computed more than once");
|
|
|
|
// Set up level information for the node builder.
|
|
PolyNodeLevel.Sides = sides;
|
|
PolyNodeLevel.NumSides = numsides;
|
|
PolyNodeLevel.Lines = lines;
|
|
PolyNodeLevel.NumLines = numlines;
|
|
|
|
// Feed segs to the nodebuilder and build the nodes.
|
|
PolyNodeBuilder.Clear();
|
|
PolyNodeBuilder.AddSegs(firstline, numlines);
|
|
for (FPolyNode *pn = polys; pn != NULL; pn = pn->pnext)
|
|
{
|
|
PolyNodeBuilder.AddPolySegs(&pn->segs[0], (int)pn->segs.Size());
|
|
}
|
|
PolyNodeBuilder.BuildMini(false);
|
|
if (BSP == NULL)
|
|
{
|
|
BSP = new FMiniBSP;
|
|
}
|
|
PolyNodeBuilder.ExtractMini(BSP);
|
|
for (unsigned int i = 0; i < BSP->Subsectors.Size(); ++i)
|
|
{
|
|
BSP->Subsectors[i].sector = sector;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
CUSTOM_CVAR(Int, r_fakecontrast, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
|
|
{
|
|
if (self < 0) self = 1;
|
|
else if (self > 2) self = 2;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
int side_t::GetLightLevel (bool foggy, int baselight, bool noabsolute, int *pfakecontrast) const
|
|
{
|
|
if (!noabsolute && (Flags & WALLF_ABSLIGHTING))
|
|
{
|
|
baselight = Light;
|
|
}
|
|
|
|
if (pfakecontrast != NULL)
|
|
{
|
|
*pfakecontrast = 0;
|
|
}
|
|
|
|
if (!foggy || level.flags3 & LEVEL3_FORCEFAKECONTRAST) // Don't do relative lighting in foggy sectors
|
|
{
|
|
if (!(Flags & WALLF_NOFAKECONTRAST) && r_fakecontrast != 0)
|
|
{
|
|
int rel;
|
|
if (((level.flags2 & LEVEL2_SMOOTHLIGHTING) || (Flags & WALLF_SMOOTHLIGHTING) || r_fakecontrast == 2) &&
|
|
linedef->dx != 0)
|
|
{
|
|
rel = xs_RoundToInt // OMG LEE KILLOUGH LIVES! :/
|
|
(
|
|
level.WallHorizLight
|
|
+ fabs(atan(double(linedef->dy) / linedef->dx) / 1.57079)
|
|
* (level.WallVertLight - level.WallHorizLight)
|
|
);
|
|
}
|
|
else
|
|
{
|
|
rel = linedef->dx == 0 ? level.WallVertLight :
|
|
linedef->dy == 0 ? level.WallHorizLight : 0;
|
|
}
|
|
if (pfakecontrast != NULL)
|
|
{
|
|
*pfakecontrast = rel;
|
|
}
|
|
else
|
|
{
|
|
baselight += rel;
|
|
}
|
|
}
|
|
}
|
|
if (!(Flags & WALLF_ABSLIGHTING) && (!foggy || (Flags & WALLF_LIGHT_FOG)))
|
|
{
|
|
baselight += this->Light;
|
|
}
|
|
return baselight;
|
|
}
|
|
|