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Refactor Polyobj_findSegs

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This commit is contained in:
MascaraSnake 2020-05-04 01:28:21 +02:00
parent 8ae635c7ba
commit 02c347ada2
1 changed files with 67 additions and 59 deletions
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126
src/p_polyobj.c
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@ -356,25 +356,29 @@ static void Polyobj_findSegs(polyobj_t *po, seg_t *seg)
// Find backfacings // Find backfacings
for (s = 0; s < numsegs; s++) for (s = 0; s < numsegs; s++)
{ {
size_t r;
if (segs[s].glseg) if (segs[s].glseg)
continue; continue;
if (segs[s].linedef == seg->linedef
&& segs[s].side == 1) if (segs[s].linedef != seg->linedef)
continue;
if (segs[s].side != 1)
continue;
for (r = 0; r < po->segCount; r++)
{ {
size_t r; if (po->segs[r] == &segs[s])
for (r = 0; r < po->segCount; r++) break;
{
if (po->segs[r] == &segs[s])
break;
}
if (r != po->segCount)
continue;
segs[s].dontrenderme = true;
Polyobj_addSeg(po, &segs[s]);
} }
if (r != po->segCount)
continue;
segs[s].dontrenderme = true;
Polyobj_addSeg(po, &segs[s]);
} }
} }
@ -394,56 +398,60 @@ newseg:
// seg's ending vertex. // seg's ending vertex.
for (i = 0; i < numsegs; ++i) for (i = 0; i < numsegs; ++i)
{ {
size_t q;
if (segs[i].glseg) if (segs[i].glseg)
continue; continue;
if (segs[i].side != 0) // needs to be frontfacing if (segs[i].side != 0) // needs to be frontfacing
continue; continue;
if (segs[i].v1->x == seg->v2->x && segs[i].v1->y == seg->v2->y) if (segs[i].v1->x != seg->v2->x)
continue;
if (segs[i].v1->y != seg->v2->y)
continue;
// Make sure you didn't already add this seg...
for (q = 0; q < po->segCount; q++)
{ {
// Make sure you didn't already add this seg... if (po->segs[q] == &segs[i])
size_t q; break;
for (q = 0; q < po->segCount; q++)
{
if (po->segs[q] == &segs[i])
break;
}
if (q != po->segCount)
continue;
// add the new seg and recurse
Polyobj_addSeg(po, &segs[i]);
seg = &segs[i];
if (!(po->flags & POF_ONESIDE))
{
// Find backfacings
for (q = 0; q < numsegs; q++)
{
if (segs[q].glseg)
continue;
if (segs[q].linedef == segs[i].linedef
&& segs[q].side == 1)
{
size_t r;
for (r=0; r < po->segCount; r++)
{
if (po->segs[r] == &segs[q])
break;
}
if (r != po->segCount)
continue;
segs[q].dontrenderme = true;
Polyobj_addSeg(po, &segs[q]);
}
}
}
goto newseg;
} }
if (q != po->segCount)
continue;
// add the new seg and recurse
Polyobj_addSeg(po, &segs[i]);
seg = &segs[i];
if (!(po->flags & POF_ONESIDE))
{
// Find backfacings
for (q = 0; q < numsegs; q++)
{
size_t r;
if (segs[q].glseg)
continue;
if (segs[q].linedef != segs[i].linedef)
continue;
if (segs[q].side != 1)
continue;
for (r = 0; r < po->segCount; r++)
{
if (po->segs[r] == &segs[q])
break;
}
if (r != po->segCount)
continue;
segs[q].dontrenderme = true;
Polyobj_addSeg(po, &segs[q]);
}
}
goto newseg;
} }
// error: if we reach here, the seg search never found another seg to // error: if we reach here, the seg search never found another seg to