Vec2.hpp

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// Copyright 2018-2023 Jan Niklas Hasse <jhasse@bixense.com>
// For conditions of distribution and use, see copyright notice in LICENSE.txt
#pragma once
 
#include <boost/qvm_lite.hpp>
#include <iosfwd>
 
namespace jngl {
 
class Vec2 {
public:
    Vec2();
 
    Vec2(double x, double y);
 
    double x = 0;
 
    double y = 0;
 
    bool isNull() const;
 
    template <class Archive> void serialize(Archive& ar, const unsigned int) {
        ar(x, y);
    }
};
 
std::ostream& operator<<(std::ostream&, const Vec2&);
 
} // namespace jngl
 
namespace boost::qvm {
template <> struct vec_traits<jngl::Vec2> {
    static int const dim = 2;
    using scalar_type = double;
 
    template <int I> static inline scalar_type& write_element(jngl::Vec2& v) {
        return (&v.x)[I];
    }
    template <int I> static inline scalar_type read_element(const jngl::Vec2& v) {
        return (&v.x)[I];
    }
 
    static inline scalar_type& write_element_idx(int i, jngl::Vec2& v) {
        return (&v.x)[i];
    }
    static inline scalar_type read_element_idx(int i, jngl::Vec2 const& v) {
        return (&v.x)[i];
    }
};
} // namespace boost::qvm
 
namespace jngl {
using boost::qvm::operator+=;
using boost::qvm::operator*=;
using boost::qvm::operator/=;
using boost::qvm::operator-=;
using boost::qvm::operator==;
using boost::qvm::operator!=;
using boost::qvm::operator+;
using boost::qvm::operator-;
using boost::qvm::operator/;
using boost::qvm::operator*;
} // namespace jngl