triangle.h

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#pragma once
 
#include <liboscar/maths/vector.h>
 
#include <cstddef>
 
namespace osc
{
    struct Triangle final {
        using element_type = float;
        using value_type = Vector<element_type, 3>;
        using size_type = size_t;
        using difference_type = ptrdiff_t;
        using reference = value_type&;
        using const_reference = const value_type&;
        using pointer = value_type*;
        using const_pointer = const value_type*;
        using iterator = value_type*;
        using const_iterator = const value_type*;
        static constexpr size_t extent = 3;
 
        constexpr size_type size() const { return extent; }
        constexpr pointer data() { return &p0; }
        constexpr const_pointer data() const { return &p0; }
        constexpr iterator begin() { return data(); }
        constexpr const_iterator begin() const { return data(); }
        constexpr iterator end() { return data() + size(); }
        constexpr const_iterator end() const { return data() + size(); }
        constexpr reference operator[](size_type pos) { return begin()[pos]; }
        constexpr const_reference operator[](size_type pos) const { return begin()[pos]; }
 
        friend bool operator==(const Triangle&, const Triangle&) = default;
 
        value_type p0{};
        value_type p1{};
        value_type p2{};
    };
}