void GLWall::SkyNormal(sector_t * fs,vertex_t * v1,vertex_t * v2)
{
ztop[0]=ztop[1]=32768.0f;
zbottom[0]=zceil[0];
zbottom[1]=zceil[1];
SkyPlane(fs, sector_t::ceiling, true);
ztop[0]=zfloor[0];
ztop[1]=zfloor[1];
zbottom[0]=zbottom[1]=-32768.0f;
SkyPlane(fs, sector_t::floor, true);
}
void GLWall::SkyBottom(seg_t * seg,sector_t * fs,sector_t * bs,vertex_t * v1,vertex_t * v2)
{
if (fs->GetTexture(sector_t::floor)==skyflatnum)
{
if ((bs->special&0xff) == NoSkyDraw) return;
FTexture * tex = TexMan(seg->sidedef->GetTexture(side_t::bottom));
// For lower skies the normal logic only applies to walls with no lower texture!
if (tex->UseType==FTexture::TEX_Null)
{
if (bs->GetTexture(sector_t::floor)==skyflatnum)
{
// if the back sector is closed the sky must be drawn!
if (bs->ceilingplane.ZatPoint(v1) > bs->floorplane.ZatPoint(v1) ||
bs->ceilingplane.ZatPoint(v2) > bs->floorplane.ZatPoint(v2))
return;
}
else
{
// Special hack for Vrack2b
if (bs->floorplane.ZatPoint(FIXED2FLOAT(viewx), FIXED2FLOAT(viewy)) > FIXED2FLOAT(viewz)) return;
}
}
zbottom[0]=zbottom[1]=-32768.0f;
if ((tex && tex->UseType!=FTexture::TEX_Null) || bs->GetTexture(sector_t::floor)!=skyflatnum)
{
ztop[0]=zfloor[0];
ztop[1]=zfloor[1];
}
else
{
ztop[0]=FIXED2FLOAT(bs->floorplane.ZatPoint(v1));
ztop[1]=FIXED2FLOAT(bs->floorplane.ZatPoint(v2));
flags|=GLWF_SKYHACK; // mid textures on such lines need special treatment!
}
}
else
{
FPortal *pfront = fs->portals[sector_t::floor];
FPortal *pback = bs->portals[sector_t::floor];
float frontreflect = fs->GetReflect(sector_t::floor);
if (frontreflect > 0)
{
float backreflect = bs->GetReflect(sector_t::floor);
if (backreflect > 0 && bs->floorplane.d == fs->floorplane.d)
{
// Don't add intra-portal line to the portal.
return;
}
}
else if (pfront == NULL || pfront == pback)
{
return;
}
// stacked sectors
fixed_t fsc1=fs->floorplane.ZatPoint(v1);
fixed_t fsc2=fs->floorplane.ZatPoint(v2);
zbottom[0]=zbottom[1]=-32768.0f;
ztop[0]=FIXED2FLOAT(fsc1);
ztop[1]=FIXED2FLOAT(fsc2);
}
SkyPlane(fs, sector_t::floor, true);
}
void GLWall::SkyTop(seg_t * seg,sector_t * fs,sector_t * bs,vertex_t * v1,vertex_t * v2)
{
if (fs->GetTexture(sector_t::ceiling)==skyflatnum)
{
if ((bs->special&0xff) == NoSkyDraw) return;
if (bs->GetTexture(sector_t::ceiling)==skyflatnum)
{
// if the back sector is closed the sky must be drawn!
if (bs->ceilingplane.ZatPoint(v1) > bs->floorplane.ZatPoint(v1) ||
bs->ceilingplane.ZatPoint(v2) > bs->floorplane.ZatPoint(v2) || bs->transdoor)
return;
// one more check for some ugly transparent door hacks
if (bs->floorplane.a==0 && bs->floorplane.b==0 && fs->floorplane.a==0 && fs->floorplane.b==0)
{
if (bs->GetPlaneTexZ(sector_t::floor)==fs->GetPlaneTexZ(sector_t::floor)+FRACUNIT)
{
FTexture * tex = TexMan(seg->sidedef->GetTexture(side_t::bottom));
if (!tex || tex->UseType==FTexture::TEX_Null) return;
// very, very, very ugly special case (See Icarus MAP14)
// It is VERY important that this is only done for a floor height difference of 1
// or it will cause glitches elsewhere.
tex = TexMan(seg->sidedef->GetTexture(side_t::mid));
if (tex != NULL && !(seg->linedef->flags & ML_DONTPEGTOP) &&
seg->sidedef->GetTextureYOffset(side_t::mid) > 0)
{
ztop[0]=ztop[1]=32768.0f;
zbottom[0]=zbottom[1]=
FIXED2FLOAT(bs->ceilingplane.ZatPoint(v2) + seg->sidedef->GetTextureYOffset(side_t::mid));
SkyPlane(fs, sector_t::ceiling, false);
return;
}
}
}
}
ztop[0]=ztop[1]=32768.0f;
FTexture * tex = TexMan(seg->sidedef->GetTexture(side_t::top));
if (bs->GetTexture(sector_t::ceiling) != skyflatnum)
{
zbottom[0]=zceil[0];
zbottom[1]=zceil[1];
}
else
{
zbottom[0]=FIXED2FLOAT(bs->ceilingplane.ZatPoint(v1));
zbottom[1]=FIXED2FLOAT(bs->ceilingplane.ZatPoint(v2));
flags|=GLWF_SKYHACK; // mid textures on such lines need special treatment!
}
}
else
{
FPortal *pfront = fs->portals[sector_t::ceiling];
FPortal *pback = bs->portals[sector_t::ceiling];
float frontreflect = fs->GetReflect(sector_t::ceiling);
if (frontreflect > 0)
{
float backreflect = bs->GetReflect(sector_t::ceiling);
if (backreflect > 0 && bs->ceilingplane.d == fs->ceilingplane.d)
{
// Don't add intra-portal line to the portal.
return;
}
}
else if (pfront == NULL || pfront == pback)
{
return;
}
// stacked sectors
fixed_t fsc1=fs->ceilingplane.ZatPoint(v1);
fixed_t fsc2=fs->ceilingplane.ZatPoint(v2);
ztop[0]=ztop[1]=32768.0f;
zbottom[0]=FIXED2FLOAT(fsc1);
zbottom[1]=FIXED2FLOAT(fsc2);
}
SkyPlane(fs, sector_t::ceiling, true);
}
void GLWall::SkyBottom(seg_t * seg,sector_t * fs,sector_t * bs,vertex_t * v1,vertex_t * v2)
{
if (fs->GetTexture(sector_t::floor)==skyflatnum)
{
if (bs->special == GLSector_NoSkyDraw) return;
FTexture * tex = TexMan(seg->sidedef->GetTexture(side_t::bottom));
// For lower skies the normal logic only applies to walls with no lower texture!
if (tex->UseType==FTexture::TEX_Null)
{
if (bs->GetTexture(sector_t::floor)==skyflatnum)
{
// if the back sector is closed the sky must be drawn!
if (bs->ceilingplane.ZatPoint(v1) > bs->floorplane.ZatPoint(v1) ||
bs->ceilingplane.ZatPoint(v2) > bs->floorplane.ZatPoint(v2))
return;
}
else
{
// Special hack for Vrack2b
if (bs->floorplane.ZatPoint(ViewPos) > ViewPos.Z) return;
}
}
zbottom[0]=zbottom[1]=-32768.0f;
if ((tex && tex->UseType!=FTexture::TEX_Null) || bs->GetTexture(sector_t::floor)!=skyflatnum)
{
ztop[0]=zfloor[0];
ztop[1]=zfloor[1];
}
else
{
ztop[0] = bs->floorplane.ZatPoint(v1);
ztop[1] = bs->floorplane.ZatPoint(v2);
flags|=GLWF_SKYHACK; // mid textures on such lines need special treatment!
}
}
else
{
float frontreflect = fs->GetReflect(sector_t::floor);
if (frontreflect > 0)
{
float backreflect = bs->GetReflect(sector_t::floor);
if (backreflect > 0 && bs->floorplane.fD() == fs->floorplane.fD())
{
// Don't add intra-portal line to the portal.
return;
}
}
else
{
int type = fs->GetPortalType(sector_t::floor);
if (type == PORTS_STACKEDSECTORTHING || type == PORTS_PORTAL || type == PORTS_LINKEDPORTAL)
{
FPortal *pfront = fs->GetGLPortal(sector_t::floor);
FPortal *pback = bs->GetGLPortal(sector_t::floor);
if (pfront == NULL || fs->PortalBlocksView(sector_t::floor)) return;
if (pfront == pback && !bs->PortalBlocksView(sector_t::floor)) return;
}
}
// stacked sectors
zbottom[0]=zbottom[1]=-32768.0f;
ztop[0] = fs->floorplane.ZatPoint(v1);
ztop[1] = fs->floorplane.ZatPoint(v2);
}
SkyPlane(fs, sector_t::floor, true);
}
void GLWall::SkyTop(seg_t * seg,sector_t * fs,sector_t * bs,vertex_t * v1,vertex_t * v2)
{
if (fs->GetTexture(sector_t::ceiling)==skyflatnum)
{
if (bs->special == GLSector_NoSkyDraw) return;
if (bs->GetTexture(sector_t::ceiling)==skyflatnum)
{
// if the back sector is closed the sky must be drawn!
if (bs->ceilingplane.ZatPoint(v1) > bs->floorplane.ZatPoint(v1) ||
bs->ceilingplane.ZatPoint(v2) > bs->floorplane.ZatPoint(v2) || bs->transdoor)
return;
// one more check for some ugly transparent door hacks
if (!bs->floorplane.isSlope() && !fs->floorplane.isSlope())
{
if (bs->GetPlaneTexZ(sector_t::floor)==fs->GetPlaneTexZ(sector_t::floor)+1.)
{
FTexture * tex = TexMan(seg->sidedef->GetTexture(side_t::bottom));
if (!tex || tex->UseType==FTexture::TEX_Null) return;
// very, very, very ugly special case (See Icarus MAP14)
// It is VERY important that this is only done for a floor height difference of 1
// or it will cause glitches elsewhere.
tex = TexMan(seg->sidedef->GetTexture(side_t::mid));
if (tex != NULL && !(seg->linedef->flags & ML_DONTPEGTOP) &&
seg->sidedef->GetTextureYOffset(side_t::mid) > 0)
{
ztop[0]=ztop[1]=32768.0f;
zbottom[0]=zbottom[1]=
bs->ceilingplane.ZatPoint(v2) + seg->sidedef->GetTextureYOffset(side_t::mid);
SkyPlane(fs, sector_t::ceiling, false);
return;
}
}
}
}
ztop[0]=ztop[1]=32768.0f;
FTexture * tex = TexMan(seg->sidedef->GetTexture(side_t::top));
if (bs->GetTexture(sector_t::ceiling) != skyflatnum)
{
zbottom[0]=zceil[0];
zbottom[1]=zceil[1];
}
else
{
zbottom[0] = bs->ceilingplane.ZatPoint(v1);
zbottom[1] = bs->ceilingplane.ZatPoint(v2);
flags|=GLWF_SKYHACK; // mid textures on such lines need special treatment!
}
}
else
{
float frontreflect = fs->GetReflect(sector_t::ceiling);
if (frontreflect > 0)
{
float backreflect = bs->GetReflect(sector_t::ceiling);
if (backreflect > 0 && bs->ceilingplane.fD() == fs->ceilingplane.fD())
{
// Don't add intra-portal line to the portal.
return;
}
}
else
{
int type = fs->GetPortalType(sector_t::ceiling);
if (type == PORTS_STACKEDSECTORTHING || type == PORTS_PORTAL || type == PORTS_LINKEDPORTAL)
{
FPortal *pfront = fs->GetGLPortal(sector_t::ceiling);
FPortal *pback = bs->GetGLPortal(sector_t::ceiling);
if (pfront == NULL || fs->PortalBlocksView(sector_t::ceiling)) return;
if (pfront == pback && !bs->PortalBlocksView(sector_t::ceiling)) return;
}
}
// stacked sectors
ztop[0] = ztop[1] = 32768.0f;
zbottom[0] = fs->ceilingplane.ZatPoint(v1);
zbottom[1] = fs->ceilingplane.ZatPoint(v2);
}
SkyPlane(fs, sector_t::ceiling, true);
}
