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Line portal support

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RaveYard 2023-09-05 17:28:38 +02:00 committed by Christoph Oelckers
parent efeab91a75
commit 8fa46c722d
1 changed files with 93 additions and 12 deletions
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105
src/rendering/hwrenderer/doom_levelmesh.cpp
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@ -93,31 +93,76 @@ void DoomLevelMesh::CreatePortals()
for (auto& surface : Surfaces)
{
auto displacement = [&]() {
bool hasPortal = [&]() {
if (surface.Type == ST_FLOOR || surface.Type == ST_CEILING)
{
auto d = surface.Subsector->sector->GetPortalDisplacement(surface.Type == ST_FLOOR ? sector_t::floor : sector_t::ceiling);
return FVector3(d.X, d.Y, 0);
return !surface.Subsector->sector->GetPortalDisplacement(surface.Type == ST_FLOOR ? sector_t::floor : sector_t::ceiling).isZero();
}
else if(surface.Type == ST_MIDDLESIDE)
else if (surface.Type == ST_MIDDLESIDE)
{
auto d = surface.Side->linedef->getPortalDisplacement();
return FVector3(d.X, d.Y, 0);
return surface.Side->linedef->isLinePortal();
}
return FVector3(0, 0, 0);
return false; // It'll take eternity to get lower/upper side portals into the ZDoom family.
}();
if (!displacement.isZero())
if (hasPortal)
{
LevelMeshPortal transformation;
transformation.transformation.translate(displacement.X, displacement.Y, displacement.Z);
auto transformation = [&]() {
VSMatrix matrix;
matrix.loadIdentity();
auto& index = transformationIndices[transformation];
if (surface.Type == ST_FLOOR || surface.Type == ST_CEILING)
{
auto d = surface.Subsector->sector->GetPortalDisplacement(surface.Type == ST_FLOOR ? sector_t::floor : sector_t::ceiling);
matrix.translate(d.X, d.Y, 0);
}
else if(surface.Type == ST_MIDDLESIDE)
{
auto sourceLine = surface.Side->linedef;
if (sourceLine->isLinePortal())
{
auto targetLine = sourceLine->getPortalDestination();
if (targetLine && sourceLine->frontsector && targetLine->frontsector)
{
double z = 0;
// auto xy = surface.Side->linedef->getPortalDisplacement(); // Works only for static portals... ugh
auto sourceXYZ = DVector2((sourceLine->v1->fX() + sourceLine->v2->fX()) / 2, (sourceLine->v2->fY() + sourceLine->v1->fY()) / 2);
auto targetXYZ = DVector2((targetLine->v1->fX() + targetLine->v2->fX()) / 2, (targetLine->v2->fY() + targetLine->v1->fY()) / 2);
// floor or ceiling alignment
auto alignment = surface.Side->linedef->GetLevel()->linePortals[surface.Side->linedef->portalindex].mAlign;
if (alignment != PORG_ABSOLUTE)
{
int plane = alignment == PORG_FLOOR ? 1 : 0;
auto& sourcePlane = plane ? sourceLine->frontsector->floorplane : sourceLine->frontsector->ceilingplane;
auto& targetPlane = plane ? targetLine->frontsector->floorplane : targetLine->frontsector->ceilingplane;
auto tz = targetPlane.ZatPoint(targetXYZ);
auto sz = sourcePlane.ZatPoint(sourceXYZ);
z = tz - sz;
}
matrix.rotate(sourceLine->getPortalAngleDiff().Degrees(), 0, 0, 1.0);
matrix.translate(targetXYZ.X - sourceXYZ.X, targetXYZ.Y - sourceXYZ.Y, z);
}
}
}
return matrix;
}();
LevelMeshPortal portal;
portal.transformation = transformation;
auto& index = transformationIndices[portal];
if (index == 0) // new transformation was created
{
index = Portals.Size();
Portals.Push(transformation);
Portals.Push(portal);
}
surface.portalIndex = index;
@ -324,6 +369,42 @@ void DoomLevelMesh::CreateSideSurfaces(FLevelLocals &doomMap, side_t *side)
FVector2 dx(v2.X - v1.X, v2.Y - v1.Y);
float distance = dx.Length();
// line portal
if (side->linedef->getPortal() && side->linedef->frontsector == front)
{
float texWidth = 128.0f;
float texHeight = 128.0f;
DoomLevelMeshSurface surf;
surf.Type = ST_MIDDLESIDE;
surf.typeIndex = typeIndex;
surf.bSky = front->GetTexture(sector_t::floor) == skyflatnum || front->GetTexture(sector_t::ceiling) == skyflatnum;
surf.sampleDimension = side->textures[side_t::mid].LightmapSampleDistance;
FVector3 verts[4];
verts[0].X = verts[2].X = v1.X;
verts[0].Y = verts[2].Y = v1.Y;
verts[1].X = verts[3].X = v2.X;
verts[1].Y = verts[3].Y = v2.Y;
verts[0].Z = v1Bottom;
verts[1].Z = v2Bottom;
verts[2].Z = v1Top;
verts[3].Z = v2Top;
surf.startVertIndex = MeshVertices.Size();
surf.numVerts = 4;
MeshVertices.Push(verts[0]);
MeshVertices.Push(verts[1]);
MeshVertices.Push(verts[2]);
MeshVertices.Push(verts[3]);
surf.plane = ToPlane(verts[0], verts[1], verts[2]);
Surfaces.Push(surf);
return;
}
// line_horizont consumes everything
if (side->linedef->special == Line_Horizon && front != back)
{