bitsery/examples/flatbuffers_tutorial_data.cpp

#include <bitsery/bitsery.h>
#include <bitsery/adapters/buffer_adapters.h>
#include <bitsery/ext/growable.h>
#include <bitsery/traits/string.h>
#include <bitsery/traits/array.h>
#include <bitsery/traits/vector.h>

namespace MyTypes {

    //define data
    enum Color:uint8_t { Red, Green, Blue };

    struct Vec3 { float x, y, z; };

    struct Weapon {
        std::string name;
        int16_t damage;
    };

    struct Monster {
        Vec3 pos;
        int16_t mana;
        int16_t hp;
        std::string name;
        std::vector<uint8_t> inventory;
        Color color;
        std::vector<Weapon> weapons;
        Weapon equipped;
        std::vector<Vec3> path;
    };

    template <typename S>
    void serialize(S& s, Vec3& o) {
        s.value4b(o.x);
        s.value4b(o.y);
        s.value4b(o.z);
    }

    //define serialization functions
    template <typename S>
    void serialize (S& s, Weapon& o) {
        //forward/backward compatibility for monsters
        s.ext(o, bitsery::ext::Growable{}, [&s](Weapon& o1) {
            s.text1b(o1.name, 20);
            s.value2b(o1.damage);
        });
    }

    template <typename S>
    void serialize (S& s, Monster& o) {
        //forward/backward compatibility for monsters
        s.ext(o, bitsery::ext::Growable{}, [&s](Monster& o1) {
            s.value1b(o1.color);
            s.value2b(o1.mana);
            s.value2b(o1.hp);
            s.object(o1.equipped);
            s.object(o1.pos);
            s.container(o1.path, 1000);
            s.container(o1.weapons, 100);
            s.container1b(o1.inventory, 50);
            s.text1b(o1.name, 20);
        });
    }
}

using namespace bitsery;

using Buffer = std::array<uint8_t, 1000000>;
using OutputAdapter = OutputBufferAdapter<Buffer>;
using InputAdapter = InputBufferAdapter<Buffer>;

struct SessionsEnabled:public DefaultConfig {
    static constexpr bool BufferSessionsEnabled = true;
};

int main() {
    //set some random data
    MyTypes::Monster data{};
    data.name = "lew";

    //1) create buffer to store data
    Buffer buffer{};
    auto writtenSize = startSerialization<OutputAdapter, MyTypes::Monster, SessionsEnabled>(buffer, data);

    //deserialize same object, can also be invoked like this: serialize(des, data)
    MyTypes::Monster res{};
    auto state = startDeserialization<InputAdapter, MyTypes::Monster, SessionsEnabled>(InputAdapter{buffer.begin(), writtenSize}, res);
    assert(state.first == ReaderError::NO_ERROR && state.second);
}