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#include "aabb.h"
#include <algorithm>
#include <tuple>
AxisAlignedBoundingBox
AxisAlignedBoundingBox::fromPoints(const std::span<const GlobalPosition3D> points)
{
using Limits = std::numeric_limits<GlobalDistance>;
static constexpr const auto INITIAL
= std::make_pair(GlobalPosition3D {Limits::max()}, GlobalPosition3D {Limits::min()});
return std::make_from_tuple<AxisAlignedBoundingBox>(
std::ranges::fold_left(points, INITIAL, [](const auto & prev, const auto & point) {
auto & [min, max] = prev;
return std::make_pair(glm::min(min, point), glm::max(max, point));
}));
}
AxisAlignedBoundingBox &
AxisAlignedBoundingBox::operator+=(const GlobalPosition3D & point)
{
min = glm::min(min, point);
max = glm::max(max, point);
return *this;
}
AxisAlignedBoundingBox
AxisAlignedBoundingBox::operator-(const GlobalPosition3D & viewPoint) const
{
return {min - viewPoint, max - viewPoint};
}
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