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A potential fix for the disappearing maskwall problem.

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Patch from Fox.

git-svn-id: https://svn.eduke32.com/eduke32@6490 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
hendricks266 2017-10-30 03:48:31 +00:00
parent e979aa1ff4
commit e12b63c3bd
1 changed files with 12 additions and 10 deletions
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22
source/build/src/polymost.cpp
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@ -2870,17 +2870,19 @@ static void polymost_drawalls(int32_t const bunch)
{
if (p1.y < SCISDIST) continue;
t0 = (SCISDIST-p0.y)/(p1.y-p0.y); p0.x = (p1.x-p0.x)*t0+p0.x; p0.y = SCISDIST;
n0.x = (wal2->x-wal->x)*t0+wal->x;
n0.y = (wal2->y-wal->y)*t0+wal->y;
}
else { t0 = 0.f; n0.x = (float)wal->x; n0.y = (float)wal->y; }
else
t0 = 0.f;
n0.x = (float)wal->x;
n0.y = (float)wal->y;
if (p1.y < SCISDIST)
{
t1 = (SCISDIST-op0.y)/(p1.y-op0.y); p1.x = (p1.x-op0.x)*t1+op0.x; p1.y = SCISDIST;
n1.x = (wal2->x-wal->x)*t1+wal->x;
n1.y = (wal2->y-wal->y)*t1+wal->y;
}
else { t1 = 1.f; n1.x = (float)wal2->x; n1.y = (float)wal2->y; }
else
t1 = 1.f;
n1.x = (float)wal2->x;
n1.y = (float)wal2->y;
float ryp0 = 1.f/p0.y, ryp1 = 1.f/p1.y;
@ -4080,13 +4082,13 @@ void polymost_drawmaskwall(int32_t damaskwallcnt)
p1.y = SCISDIST;
}
int32_t m0 = (int32_t)((wal2->x - wal->x) * t0 + wal->x);
int32_t m1 = (int32_t)((wal2->y - wal->y) * t0 + wal->y);
int32_t m0 = (int32_t)((wal2->x - wal->x) + wal->x);
int32_t m1 = (int32_t)((wal2->y - wal->y) + wal->y);
int32_t cz[4], fz[4];
getzsofslope(sectnum, m0, m1, &cz[0], &fz[0]);
getzsofslope(wal->nextsector, m0, m1, &cz[1], &fz[1]);
m0 = (int32_t)((wal2->x - wal->x) * t1 + wal->x);
m1 = (int32_t)((wal2->y - wal->y) * t1 + wal->y);
m0 = (int32_t)((wal2->x - wal->x) + wal->x);
m1 = (int32_t)((wal2->y - wal->y) + wal->y);
getzsofslope(sectnum, m0, m1, &cz[2], &fz[2]);
getzsofslope(wal->nextsector, m0, m1, &cz[3], &fz[3]);