position.h

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#pragma once
#include "core/types.h"
#include "game/entity.h"
#include "math/vec3.h"
//------------------------------------------------------------------------------
namespace Game
{
 
struct Position : public Math::vec3
{
    using Math::vec3::vec3; // default constructor
    Position(Math::vec3 const& v)
    {
        this->load(&v.x);
    }
 
    struct Traits;
};
 
//------------------------------------------------------------------------------
struct Position::Traits
{
    Traits() = delete;
    using type = Position;
    static constexpr auto name = "Position";
    static constexpr auto fully_qualified_name = "Game.Position";
    static constexpr size_t num_fields = 3;
    static constexpr const char* field_names[num_fields] = {
        "x",
        "y",
        "z"
    };
    static constexpr const char* field_typenames[num_fields] = {
        "float",
        "float",
        "float"
    };
    using field_types = std::tuple<float, float, float>;
    static constexpr size_t field_byte_offsets[num_fields] = {
        offsetof(Position, x),
        offsetof(Position, y),
        offsetof(Position, z)
    };
    static constexpr uint32_t fixed_column_index = 1;
};
 
} // namespace Game