acceleration_structure_basics.h

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#pragma once
 
#include "Math/Geometry/TLineSegment.h"
 
#include <Common/primitive_type.h>
#include <Common/config.h>
 
#include <concepts>
#include <optional>
#include <cstddef>
 
#define PH_PROFILE_ACCELERATION_STRUCTURES (1 && PH_PROFILING)
 
#if PH_PROFILE_ACCELERATION_STRUCTURES
#include <Common/profiling.h>
#endif
 
namespace ph::math
{
 
template<typename TesterFunc, typename Item>
concept CItemSegmentIntersectionTesterVanilla = requires (TesterFunc func, Item item)
{
    { func(item, TLineSegment<real>{}) } -> std::same_as<std::optional<real>>;
};
 
template<typename TesterFunc, typename Item>
concept CItemSegmentIntersectionTesterWithIndex = requires (
    TesterFunc func, 
    Item item, 
    TLineSegment<real> segment,
    std::size_t itemIndex)
{
    { func(item, segment, itemIndex) } -> std::same_as<std::optional<real>>;
};
 
template<typename TesterFunc, typename Item>
concept CItemSegmentIntersectionTester = 
    CItemSegmentIntersectionTesterVanilla<TesterFunc, Item> ||
    CItemSegmentIntersectionTesterWithIndex<TesterFunc, Item>;
 
}// end namespace ph::math