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- added some fudging to make sectors that are neighboring a portal plane but share the same texture properties actual parts of the portal. This is only done when portals are defined with portal things. This was necessary to preserve an effect that depended on incomplete checks in the renderer that could not be preserved with the implementation of linedef based portals.

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SVN r3012 (trunk)
This commit is contained in:
Christoph Oelckers 2010-11-29 12:43:52 +00:00
parent 976fe64f79
commit 14f4a9e835
1 changed files with 80 additions and 0 deletions
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80
src/p_spec.cpp
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@ -888,6 +888,72 @@ static void SetupCeilingPortal (AStackPoint *point)
}
}
static bool SpreadCeilingPortal(AStackPoint *pt, fixed_t alpha, sector_t *sector)
{
bool fail = false;
sector->validcount = validcount;
for(int i=0; i<sector->linecount; i++)
{
line_t *line = sector->lines[i];
sector_t *backsector = sector == line->frontsector? line->backsector : line->frontsector;
if (line->backsector == line->frontsector) continue;
if (backsector == NULL) { fail = true; continue; }
if (backsector->validcount == validcount) continue;
if (backsector->CeilingSkyBox == pt) continue;
// Check if the backside would map to the same visplane
if (backsector->CeilingSkyBox != NULL) { fail = true; continue; }
if (backsector->ceilingplane != sector->ceilingplane) { fail = true; continue; }
if (backsector->lightlevel != sector->lightlevel) { fail = true; continue; }
if (backsector->GetTexture(sector_t::ceiling) != sector->GetTexture(sector_t::ceiling)) { fail = true; continue; }
if (backsector->GetXOffset(sector_t::ceiling) != sector->GetXOffset(sector_t::ceiling)) { fail = true; continue; }
if (backsector->GetYOffset(sector_t::ceiling) != sector->GetYOffset(sector_t::ceiling)) { fail = true; continue; }
if (backsector->GetXScale(sector_t::ceiling) != sector->GetXScale(sector_t::ceiling)) { fail = true; continue; }
if (backsector->GetYScale(sector_t::ceiling) != sector->GetYScale(sector_t::ceiling)) { fail = true; continue; }
if (backsector->GetAngle(sector_t::ceiling) != sector->GetAngle(sector_t::ceiling)) { fail = true; continue; }
if (SpreadCeilingPortal(pt, alpha, backsector)) { fail = true; continue; }
}
if (!fail)
{
sector->CeilingSkyBox = pt;
sector->SetAlpha(sector_t::ceiling, alpha);
}
return fail;
}
static bool SpreadFloorPortal(AStackPoint *pt, fixed_t alpha, sector_t *sector)
{
bool fail = false;
sector->validcount = validcount;
for(int i=0; i<sector->linecount; i++)
{
line_t *line = sector->lines[i];
sector_t *backsector = sector == line->frontsector? line->backsector : line->frontsector;
if (line->backsector == line->frontsector) continue;
if (backsector == NULL) { fail = true; continue; }
if (backsector->validcount == validcount) continue;
if (backsector->FloorSkyBox == pt) continue;
// Check if the backside would map to the same visplane
if (backsector->FloorSkyBox != NULL) { fail = true; continue; }
if (backsector->floorplane != sector->ceilingplane) { fail = true; continue; }
if (backsector->lightlevel != sector->lightlevel) { fail = true; continue; }
if (backsector->GetTexture(sector_t::floor) != sector->GetTexture(sector_t::floor)) { fail = true; continue; }
if (backsector->GetXOffset(sector_t::floor) != sector->GetXOffset(sector_t::floor)) { fail = true; continue; }
if (backsector->GetYOffset(sector_t::floor) != sector->GetYOffset(sector_t::floor)) { fail = true; continue; }
if (backsector->GetXScale(sector_t::floor) != sector->GetXScale(sector_t::floor)) { fail = true; continue; }
if (backsector->GetYScale(sector_t::floor) != sector->GetYScale(sector_t::floor)) { fail = true; continue; }
if (backsector->GetAngle(sector_t::floor) != sector->GetAngle(sector_t::floor)) { fail = true; continue; }
if (SpreadFloorPortal(pt, alpha, backsector)) { fail = true; continue; }
}
if (!fail)
{
sector->FloorSkyBox = pt;
sector->SetAlpha(sector_t::floor, alpha);
}
return fail;
}
void P_SetupPortals()
{
TThinkerIterator<AStackPoint> it;
@ -936,6 +1002,20 @@ void P_SetupPortals()
}
}
}
validcount++;
// Some fudging to preserve an unintended 'portal bleeding' effect caused by incomplete checks in the rendering code.
// Due to the addition of linedef-based portals this effect no longer works.
for(int i=0;i<numsectors; i++)
{
if (sectors[i].CeilingSkyBox != NULL && sectors[i].CeilingSkyBox->bAlways && sectors[i].validcount != validcount)
{
SpreadCeilingPortal(barrier_cast<AStackPoint*>(sectors[i].CeilingSkyBox), sectors[i].GetAlpha(sector_t::ceiling), &sectors[i]);
}
if (sectors[i].FloorSkyBox != NULL && sectors[i].FloorSkyBox->bAlways && sectors[i].validcount != validcount)
{
SpreadFloorPortal(barrier_cast<AStackPoint*>(sectors[i].FloorSkyBox), sectors[i].GetAlpha(sector_t::floor), &sectors[i]);
}
}
}
inline void SetPortal(sector_t *sector, int plane, AStackPoint *portal, fixed_t alpha)