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- fixed: The check for identical floor planes on an opening should never allow it to be narrowed down.
This can cause problems in rare situations where a sloped plane is checked outside its sector boundaries.
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1 changed files with 3 additions and 1 deletions
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@ -839,9 +839,11 @@ bool PIT_CheckLine(FMultiBlockLinesIterator &mit, FMultiBlockLinesIterator::Chec
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// If the floor planes on both sides match we should recalculate open.bottom at the actual position we are checking
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// This is to avoid bumpy movement when crossing a linedef with the same slope on both sides.
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// This should never narrow down the opening, though, only widen it.
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if (open.frontfloorplane == open.backfloorplane && open.bottom > LINEOPEN_MIN)
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{
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open.bottom = open.frontfloorplane.ZatPoint(cres.Position);
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auto newopen = open.frontfloorplane.ZatPoint(cres.Position);
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if (newopen < open.bottom) open.bottom = newopen;
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}
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if (rail &&
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