protocol.h

#pragma once
 
#include <cstdint>
 
#include "core/engine_config.h"
#include "net/wire/bit_stream.h"
 
namespace Vkm::Engine {

constexpr uint16_t NET_PROTOCOL_TAG = 0x564B;

constexpr uint8_t NET_PROTOCOL_VERSION = 8;

enum class NetMessage : uint8_t {
    Hello     = 1,  
    Welcome   = 2,  
    Refuse    = 3,  
    Goodbye   = 4,  
    Snapshot  = 5,  
    Command   = 6,  
    Challenge = 7,  
    Count
};

enum class NetRefusal : uint8_t {
    Full      = 1,  
    Mismatch  = 2,  
    Declined  = 3,  
    TickRate  = 4,  
    Count
};

const char* toString(NetRefusal reason);

enum class NetSender : uint8_t {
    ThisBuild,   
    OtherBuild,  
    Unknown      
};

void writeMessageHeader(BitWriter& out, NetMessage message, uint64_t token);

NetSender readMessageHeader(BitReader& in, NetMessage& message, uint64_t& token);

enum class NetRole : uint8_t {
    Offline = 0,  
    Server,       
    Client,       

    Disconnected,
    Count
};

constexpr bool isAuthority(NetRole role) {
    return role == NetRole::Offline || role == NetRole::Server;
}

constexpr float NET_MAX_SCALE = 1024.0f;

constexpr uint32_t NET_MAX_TICK_JUMP = Config::MAX_TICK_RATE * 60;

using PlayerId = uint16_t;
constexpr PlayerId NO_PLAYER = 0;
 
} // namespace Vkm::Engine