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38 lines
1.0 KiB
C++
38 lines
1.0 KiB
C++
#ifndef OPENMW_COMPONENTS_DETOURNAVIGATOR_TILEBOUNDS_H
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#define OPENMW_COMPONENTS_DETOURNAVIGATOR_TILEBOUNDS_H
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#include <osg/Vec2f>
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#include <algorithm>
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#include <optional>
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#include <tuple>
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namespace DetourNavigator
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{
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struct TileBounds
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{
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osg::Vec2f mMin;
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osg::Vec2f mMax;
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};
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inline bool operator<(const TileBounds& lhs, const TileBounds& rhs) noexcept
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{
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return std::tie(lhs.mMin, lhs.mMax) < std::tie(rhs.mMin, rhs.mMax);
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}
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inline std::optional<TileBounds> getIntersection(const TileBounds& a, const TileBounds& b) noexcept
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{
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const float minX = std::max(a.mMin.x(), b.mMin.x());
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const float maxX = std::min(a.mMax.x(), b.mMax.x());
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if (minX > maxX)
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return std::nullopt;
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const float minY = std::max(a.mMin.y(), b.mMin.y());
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const float maxY = std::min(a.mMax.y(), b.mMax.y());
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if (minY > maxY)
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return std::nullopt;
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return TileBounds {osg::Vec2f(minX, minY), osg::Vec2f(maxX, maxY)};
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}
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}
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#endif
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