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OpenGL: closed door/window detection code now accounts for slopes, just like in software

This commit is contained in:
Monster Iestyn 2016-06-04 18:31:21 +01:00
parent a7640e4d6c
commit 4c422f6605
1 changed files with 50 additions and 8 deletions
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58
src/hardware/hw_main.c
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@ -2892,15 +2892,57 @@ static void HWR_AddLine(seg_t * line)
gr_backsector = R_FakeFlat(gr_backsector, &tempsec, NULL, NULL, true);
// Closed door.
if (gr_backsector->ceilingheight <= gr_frontsector->floorheight ||
gr_backsector->floorheight >= gr_frontsector->ceilingheight)
goto clipsolid;
#ifdef ESLOPE
if (gr_frontsector->f_slope || gr_frontsector->c_slope || gr_backsector->f_slope || gr_backsector->c_slope)
{
fixed_t v1x, v1y, v2x, v2y; // the seg's vertexes as fixed_t
fixed_t frontf1,frontf2, frontc1, frontc2; // front floor/ceiling ends
fixed_t backf1, backf2, backc1, backc2; // back floor ceiling ends
// Window.
if (gr_backsector->ceilingheight != gr_frontsector->ceilingheight ||
gr_backsector->floorheight != gr_frontsector->floorheight)
goto clippass;
v1x = FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v1)->x);
v1y = FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v1)->y);
v2x = FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v2)->x);
v2y = FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v2)->y);
#define SLOPEPARAMS(slope, end1, end2, normalheight) \
if (slope) { \
end1 = P_GetZAt(slope, v1x, v1y); \
end2 = P_GetZAt(slope, v2x, v2y); \
} else \
end1 = end2 = normalheight;
SLOPEPARAMS(gr_frontsector->f_slope, frontf1, frontf2, gr_frontsector->floorheight)
SLOPEPARAMS(gr_frontsector->c_slope, frontc1, frontc2, gr_frontsector->ceilingheight)
SLOPEPARAMS( gr_backsector->f_slope, backf1, backf2, gr_backsector->floorheight)
SLOPEPARAMS( gr_backsector->c_slope, backc1, backc2, gr_backsector->ceilingheight)
#undef SLOPEPARAMS
// Closed door.
if ((backc1 <= frontf1 && backc2 <= frontf2)
|| (backf1 >= frontc1 && backf2 >= frontc2))
{
goto clipsolid;
}
// Window.
if (backc1 != frontc1 || backc2 != frontc2
|| backf1 != frontf1 || backf2 != frontf2)
{
goto clippass;
}
}
else
#endif
{
// Closed door.
if (gr_backsector->ceilingheight <= gr_frontsector->floorheight ||
gr_backsector->floorheight >= gr_frontsector->ceilingheight)
goto clipsolid;
// Window.
if (gr_backsector->ceilingheight != gr_frontsector->ceilingheight ||
gr_backsector->floorheight != gr_frontsector->floorheight)
goto clippass;
}
// Reject empty lines used for triggers and special events.
// Identical floor and ceiling on both sides,