bool FDrawInfo::CheckAnchorFloor(subsector_t * sub)
{
// This subsector has a one sided wall and can be used.
if (sub->hacked==3) return true;
if (sub->degenerate) return false;
for(DWORD j=0; j<sub->numlines; j++)
{
seg_t * seg = sub->firstline + j;
if (!seg->PartnerSeg) return true;
subsector_t * backsub = seg->PartnerSeg->Subsector;
// Find a linedef with a different visplane on the other side.
if (!backsub->degenerate && seg->linedef &&
(sub->render_sector != backsub->render_sector && sub->sector != backsub->sector))
{
// I'm ignoring slopes, scaling and rotation here. The likelihood of ZDoom maps
// using such crap hacks is simply too small
if (sub->render_sector->GetTexture(sector_t::floor)==backsub->render_sector->GetTexture(sector_t::floor) &&
sub->render_sector->GetPlaneTexZ(sector_t::floor)==backsub->render_sector->GetPlaneTexZ(sector_t::floor) &&
GetFloorLight(sub->render_sector)==GetFloorLight(backsub->render_sector))
{
continue;
}
// This means we found an adjoining subsector that clearly would go into another
// visplane. That means that this subsector can be used as an anchor.
return true;
}
}
return false;
}
bool FDrawInfo::CollectSubsectorsFloor(subsector_t * sub, sector_t * anchor)
{
// mark it checked
sub->validcount=validcount;
// We must collect any subsector that either is connected to this one with a miniseg
// or has the same visplane.
// We must not collect any subsector that has the anchor's visplane!
if (!sub->degenerate)
{
// Is not being rendered so don't bother.
if (!(ss_renderflags[DWORD(sub-subsectors)]&SSRF_PROCESSED)) return true;
if (sub->render_sector->GetTexture(sector_t::floor) != anchor->GetTexture(sector_t::floor) ||
sub->render_sector->GetPlaneTexZ(sector_t::floor)!=anchor->GetPlaneTexZ(sector_t::floor) ||
GetFloorLight(sub->render_sector)!=GetFloorLight(anchor))
{
if (sub==viewsubsector && viewz<anchor->GetPlaneTexZ(sector_t::floor)) inview=true;
HandledSubsectors.Push (sub);
}
}
// We can assume that all segs in this subsector are connected to a subsector that has
// to be checked as well
for(DWORD j=0; j<sub->numlines; j++)
{
seg_t * seg = sub->firstline + j;
if (seg->PartnerSeg)
{
subsector_t * backsub = seg->PartnerSeg->Subsector;
// could be an anchor itself.
if (!CheckAnchorFloor (backsub)) // must not be an anchor itself!
{
if (backsub->validcount!=validcount)
{
if (!CollectSubsectorsFloor (backsub, anchor)) return false;
}
}
else if (sub->render_sector == backsub->render_sector)
{
// Any anchor not within the original anchor's visplane terminates the processing.
if (sub->render_sector->GetTexture(sector_t::floor)!=anchor->GetTexture(sector_t::floor) ||
sub->render_sector->GetPlaneTexZ(sector_t::floor)!=anchor->GetPlaneTexZ(sector_t::floor) ||
GetFloorLight(sub->render_sector)!=GetFloorLight(anchor))
{
return false;
}
}
if (!seg->linedef || (seg->frontsector==seg->backsector && sub->render_sector!=backsub->render_sector))
lowersegs.Push(seg);
}
}
return true;
}
void FDrawInfo::CollectSectorStacksFloor(subsector_t * sub, sector_t * anchor)
{
sector_t fake;
// mark it checked
sub->validcount=validcount;
// Has a sector stack or skybox itself!
if (sub->render_sector->FloorSkyBox && sub->render_sector->FloorSkyBox->bAlways) return;
// Don't bother processing unrendered subsectors
if (sub->numlines>2 && !(ss_renderflags[DWORD(sub-subsectors)]&SSRF_PROCESSED)) return;
// Must be the exact same visplane
sector_t * me = gl_FakeFlat(sub->render_sector, &fake, false);
if (me->GetTexture(sector_t::floor) != anchor->GetTexture(sector_t::floor) ||
me->floorplane != anchor->floorplane ||
GetFloorLight(me) != GetFloorLight(anchor) ||
me->ColorMap != anchor->ColorMap ||
me->GetXOffset(sector_t::floor) != anchor->GetXOffset(sector_t::floor) ||
me->GetYOffset(sector_t::floor) != anchor->GetYOffset(sector_t::floor) ||
me->GetXScale(sector_t::floor) != anchor->GetXScale(sector_t::floor) ||
me->GetYScale(sector_t::floor) != anchor->GetYScale(sector_t::floor) ||
me->GetAngle(sector_t::floor) != anchor->GetAngle(sector_t::floor))
{
// different visplane so it can't belong to this stack
return;
}
HandledSubsectors.Push (sub);
for(DWORD j=0; j<sub->numlines; j++)
{
seg_t * seg = sub->firstline + j;
if (seg->PartnerSeg)
{
subsector_t * backsub = seg->PartnerSeg->Subsector;
if (backsub->validcount!=validcount) CollectSectorStacksFloor (backsub, anchor);
}
}
}
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 = GetFloorLight (sec);
}
if (ceilinglightlevel != NULL)
{
*ceilinglightlevel = GetCeilingLight (sec);
}
FakeSide = FAKED_Center;
const sector_t *s = sec->GetHeightSec();
if (s != NULL)
{
sector_t *heightsec = viewsector->heightsec;
bool underwater = r_fakingunderwater ||
(heightsec && viewz <= heightsec->floorplane.ZatPoint (viewx, viewy));
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 (CopyPlaneIfValid (&tempsec->floorplane, &s->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 = GetFloorLight (s);
}
if (ceilinglightlevel != NULL)
{
*ceilinglightlevel = GetCeilingLight (s);
}
}
FakeSide = FAKED_BelowFloor;
return tempsec;
}
return sec;
}
}
else
{
tempsec->floorplane = s->floorplane;
}
if (!(s->MoreFlags & SECF_FAKEFLOORONLY))
{
if (diffTex)
{
if (CopyPlaneIfValid (&tempsec->ceilingplane, &s->ceilingplane, &sec->floorplane))
{
tempsec->SetTexture(sector_t::ceiling, s->GetTexture(sector_t::ceiling), false);
}
}
else
{
tempsec->ceilingplane = s->ceilingplane;
}
}
// fixed_t refflorz = s->floorplane.ZatPoint (viewx, viewy);
fixed_t refceilz = s->ceilingplane.ZatPoint (viewx, viewy);
// fixed_t orgflorz = sec->floorplane.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 = WallSX1; z < WallSX2; ++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 = GetFloorLight (s);
}
if (ceilinglightlevel != NULL)
{
*ceilinglightlevel = GetCeilingLight (s);
}
}
FakeSide = FAKED_BelowFloor;
}
else if (heightsec && viewz >= heightsec->ceilingplane.ZatPoint (viewx, viewy) &&
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 = GetFloorLight (s);
}
if (ceilinglightlevel != NULL)
{
*ceilinglightlevel = GetCeilingLight (s);
}
}
FakeSide = FAKED_AboveCeiling;
}
sec = tempsec; // Use other sector
}
return sec;
}
//==========================================================================
//
// Draw the plane segment into the gap
//
//==========================================================================
void GLDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, bool ceiling)
{
GLSectorPlane plane;
int lightlevel;
FColormap Colormap;
FGLTexture * gltexture;
plane.GetFromSector(sec, ceiling);
gltexture=FGLTexture::ValidateTexture(plane.texture);
if (!gltexture) return;
if (gl_fixedcolormap)
{
Colormap.GetFixedColormap();
lightlevel=255;
}
else
{
Colormap=sec->ColorMap;
if (gltexture->tex->isFullbright())
{
Colormap.LightColor.r = Colormap.LightColor.g = Colormap.LightColor.b = 0xff;
lightlevel=255;
}
else lightlevel=abs(ceiling? GetCeilingLight(sec) : GetFloorLight(sec));
}
int rel = extralight * gl_weaponlight;
gl_SetColor(lightlevel, rel, &Colormap, 1.0f);
gl_SetFog(lightlevel, rel, &Colormap, false);
gltexture->Bind(Colormap.LightColor.a);
gl_SetPlaneTextureRotation(&plane, gltexture);
float fviewx = TO_GL(viewx);
float fviewy = TO_GL(viewy);
float fviewz = TO_GL(viewz);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
float prj_fac1 = (planez-fviewz)/(ws->z1-fviewz);
float prj_fac2 = (planez-fviewz)/(ws->z2-fviewz);
float px1 = fviewx + prj_fac1 * (ws->x1-fviewx);
float py1 = fviewy + prj_fac1 * (ws->y1-fviewy);
float px2 = fviewx + prj_fac2 * (ws->x1-fviewx);
float py2 = fviewy + prj_fac2 * (ws->y1-fviewy);
float px3 = fviewx + prj_fac2 * (ws->x2-fviewx);
float py3 = fviewy + prj_fac2 * (ws->y2-fviewy);
float px4 = fviewx + prj_fac1 * (ws->x2-fviewx);
float py4 = fviewy + prj_fac1 * (ws->y2-fviewy);
gl.TexCoord2f(px1 / 64, -py1 / 64);
gl.Vertex3f(px1, planez, py1);
gl.TexCoord2f(px2 / 64, -py2 / 64);
gl.Vertex3f(px2, planez, py2);
gl.TexCoord2f(px3 / 64, -py3 / 64);
gl.Vertex3f(px3, planez, py3);
gl.TexCoord2f(px4 / 64, -py4 / 64);
gl.Vertex3f(px4, planez, py4);
gl.End();
gl.MatrixMode(GL_TEXTURE);
gl.PopMatrix();
gl.MatrixMode(GL_MODELVIEW);
}
sector_t *R_FakeFlat(sector_t *sec, sector_t *tempsec,
int *floorlightlevel, int *ceilinglightlevel,
bool back)
{
// [ZDoomGL] - convenience, so you don't have to check for NULL before calling function
if (!sec)
{
return NULL;
}
// [RH] allow per-plane lighting
if (floorlightlevel != NULL)
{
*floorlightlevel = GetFloorLight (sec);
}
if (ceilinglightlevel != NULL)
{
*ceilinglightlevel = GetCeilingLight (sec);
}
FakeSide = FAKED_Center;
if (sec->heightsec && !(sec->heightsec->MoreFlags & SECF_IGNOREHEIGHTSEC))
{
const sector_t *s = sec->heightsec;
sector_t *heightsec = viewsector->heightsec;
bool underwater = r_fakingunderwater ||
(heightsec && viewz <= heightsec->floorplane.ZatPoint (viewx, viewy));
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 (CopyPlaneIfValid (&tempsec->floorplane, &s->floorplane, &sec->ceilingplane))
{
tempsec->floorpic = s->floorpic;
}
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 = GetFloorLight (s);
}
if (ceilinglightlevel != NULL)
{
*ceilinglightlevel = GetCeilingLight (s);
}
}
FakeSide = FAKED_BelowFloor;
return tempsec;
}
return sec;
}
}
else
{
tempsec->floorplane = s->floorplane;
}
if (!(s->MoreFlags & SECF_FAKEFLOORONLY))
{
if (diffTex)
{
if (CopyPlaneIfValid (&tempsec->ceilingplane, &s->ceilingplane, &sec->floorplane))
{
tempsec->ceilingpic = s->ceilingpic;
}
}
else
{
tempsec->ceilingplane = s->ceilingplane;
}
}
// fixed_t refflorz = s->floorplane.ZatPoint (viewx, viewy);
fixed_t refceilz = s->ceilingplane.ZatPoint (viewx, viewy);
// fixed_t orgflorz = sec->floorplane.ZatPoint (viewx, viewy);
fixed_t orgceilz = sec->ceilingplane.ZatPoint (viewx, viewy);
#if 1
if ( OPENGL_GetCurrentRenderer( ) == RENDERER_SOFTWARE )
{
// [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 = WallSX1; z < WallSX2; ++z)
{
if (floorclip[z] > ceilingclip[z])
{
doorunderwater = true;
r_fakingunderwater = true;
break;
}
}
}
}
}
else
{
// have to do this a different way for the hardware engine...
}
#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->floorpic = diffTex ? sec->floorpic : s->floorpic;
tempsec->floor_xoffs = s->floor_xoffs;
tempsec->floor_yoffs = s->floor_yoffs;
tempsec->floor_xscale = s->floor_xscale;
tempsec->floor_yscale = s->floor_yscale;
tempsec->floor_angle = s->floor_angle;
tempsec->base_floor_angle = s->base_floor_angle;
tempsec->base_floor_yoffs = s->base_floor_yoffs;
tempsec->ceilingplane = s->floorplane;
tempsec->ceilingplane.FlipVert ();
tempsec->ceilingplane.ChangeHeight (-1);
if (s->ceilingpic == skyflatnum)
{
tempsec->floorplane = tempsec->ceilingplane;
tempsec->floorplane.FlipVert ();
tempsec->floorplane.ChangeHeight (+1);
tempsec->ceilingpic = tempsec->floorpic;
tempsec->ceiling_xoffs = tempsec->floor_xoffs;
tempsec->ceiling_yoffs = tempsec->floor_yoffs;
tempsec->ceiling_xscale = tempsec->floor_xscale;
tempsec->ceiling_yscale = tempsec->floor_yscale;
tempsec->ceiling_angle = tempsec->floor_angle;
tempsec->base_ceiling_angle = tempsec->base_floor_angle;
tempsec->base_ceiling_yoffs = tempsec->base_floor_yoffs;
}
else
{
tempsec->ceilingpic = diffTex ? s->floorpic : s->ceilingpic;
tempsec->ceiling_xoffs = s->ceiling_xoffs;
tempsec->ceiling_yoffs = s->ceiling_yoffs;
tempsec->ceiling_xscale = s->ceiling_xscale;
tempsec->ceiling_yscale = s->ceiling_yscale;
tempsec->ceiling_angle = s->ceiling_angle;
tempsec->base_ceiling_angle = s->base_ceiling_angle;
tempsec->base_ceiling_yoffs = s->base_ceiling_yoffs;
}
if (!(s->MoreFlags & SECF_NOFAKELIGHT))
{
tempsec->lightlevel = s->lightlevel;
if (floorlightlevel != NULL)
{
*floorlightlevel = GetFloorLight (s);
}
if (ceilinglightlevel != NULL)
{
*ceilinglightlevel = GetCeilingLight (s);
}
}
FakeSide = FAKED_BelowFloor;
}
else if (heightsec && viewz >= heightsec->ceilingplane.ZatPoint (viewx, viewy) &&
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->ceilingpic = diffTex ? sec->ceilingpic : s->ceilingpic;
tempsec->floorpic = s->ceilingpic;
tempsec->floor_xoffs = tempsec->ceiling_xoffs = s->ceiling_xoffs;
tempsec->floor_yoffs = tempsec->ceiling_yoffs = s->ceiling_yoffs;
tempsec->floor_xscale = tempsec->ceiling_xscale = s->ceiling_xscale;
tempsec->floor_yscale = tempsec->ceiling_yscale = s->ceiling_yscale;
tempsec->floor_angle = tempsec->ceiling_angle = s->ceiling_angle;
tempsec->base_floor_angle = tempsec->base_ceiling_angle = s->base_ceiling_angle;
tempsec->base_floor_yoffs = tempsec->base_ceiling_yoffs = s->base_ceiling_yoffs;
if (s->floorpic != skyflatnum)
{
tempsec->ceilingplane = sec->ceilingplane;
tempsec->floorpic = s->floorpic;
tempsec->floor_xoffs = s->floor_xoffs;
tempsec->floor_yoffs = s->floor_yoffs;
tempsec->floor_xscale = s->floor_xscale;
tempsec->floor_yscale = s->floor_yscale;
tempsec->floor_angle = s->floor_angle;
}
if (!(s->MoreFlags & SECF_NOFAKELIGHT))
{
tempsec->lightlevel = s->lightlevel;
if (floorlightlevel != NULL)
{
*floorlightlevel = GetFloorLight (s);
}
if (ceilinglightlevel != NULL)
{
*ceilinglightlevel = GetCeilingLight (s);
}
}
FakeSide = FAKED_AboveCeiling;
}
sec = tempsec; // Use other sector
}
return sec;
}
