제출 버전

서버는 단순 브로드캐스트 에코 서버로 해야 할 듯..

Client/CMakeLists.txt

@@ -3,7 +3,6 @@ set(PROJECT_NAME "Client")
 project(${PROJECT_NAME})
 
 find_package(Vulkan REQUIRED)
-find_package(OpenSSL REQUIRED)
 
 include(Shaders.cmake)
 include(FetchContent)
@@ -48,6 +47,14 @@ FetchContent_Declare(
 )
 FetchContent_MakeAvailable(ASSIMP)
 
+FetchContent_Declare(
+    JSONCPP
+    GIT_REPOSITORY "https://github.com/open-source-parsers/jsoncpp.git"
+    GIT_TAG "1.9.6"
+    GIT_SHALLOW ON
+)
+FetchContent_MakeAvailable(JSONCPP)
+
 file(GLOB_RECURSE Sources CONFIGURE_DEPENDS
     "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp"
 )
@@ -59,8 +66,7 @@ target_link_libraries(${PROJECT_NAME} PRIVATE glfw)
 target_link_libraries(${PROJECT_NAME} PRIVATE Microsoft.GSL::GSL)
 target_link_libraries(${PROJECT_NAME} PRIVATE spdlog)
 target_link_libraries(${PROJECT_NAME} PRIVATE assimp::assimp)
-target_link_libraries(${PROJECT_NAME} PRIVATE OpenSSL::Crypto)
-target_link_libraries(${PROJECT_NAME} PRIVATE OpenSSL::SSL)
+target_link_libraries(${PROJECT_NAME} PRIVATE jsoncpp_static)
 
 if(WIN32)
     target_link_libraries(${PROJECT_NAME} PRIVATE ws2_32)
@@ -107,3 +113,17 @@ add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
     "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
     COMMENT "Copying spdlog library files and symlinks to output directory"
 )
+
+add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    "$<TARGET_FILE:jsoncpp_static>"
+    "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
+    COMMENT "Copying jsoncpp DLL/so to output directory"
+)
+
+add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_directory
+    "$<TARGET_FILE_DIR:jsoncpp_static>"
+    "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
+    COMMENT "Copying jsoncpp library files and symlinks to output directory"
+)

Client/include/asteroid/game.h

@@ -1,8 +1,11 @@
 #pragma once
+#include "utils/snowflake.h"
+
+extern std::uint8_t CLIENTID;
 
 namespace veng {
 class Engine;
 }
 
-void BeginPlay(veng::Engine& engine);
+void BeginPlay(veng::Engine& engine, utils::Snowflake playerID);
 void Tick(veng::Engine& engine, std::float_t delta_time);

Client/src/asteroid/begin_play.cpp

@@ -1,64 +1,129 @@
 #include "asteroid/game.h"
-
 #include "vulkan_engine/vulkan/engine.h"
+#include "utils/ConfigManager.h"
 
-void BeginPlay(veng::Engine& engine) {
-  veng::Model* const player = engine.SpawnModel("player", "player");
+void BeginPlay(veng::Engine& engine, utils::Snowflake playerID) {
+  std::random_device rd;
+  std::mt19937 gen = std::mt19937(rd());
+  std::uniform_real_distribution<float> jitterDist =
+      std::uniform_real_distribution<float>(-2, 2);
+
+  std::shared_ptr<veng::Model> const player =
+      engine.SpawnLifedModel("player", "player", -1);
+  {
+    std::lock_guard lock(player->modding);
+    if (playerID.snowflake != 0)
+      player->ID = playerID;
+    player->position = glm::vec3(jitterDist(gen), jitterDist(gen), 0.f);
     player->scale = glm::vec3(.02f);
     player->colision = true;
-  player->OnColision = [](veng::Model* self, veng::Model* other) {
-    if (other->owner == self) return;
-    spdlog::info("{} and {} is nearby.", (void*)self, (void*)other);
+    player->OnColision = [](utils::ThreadPool* thread_pool,
+                            std::shared_ptr<veng::Model> self,
+                            std::shared_ptr<veng::Model> other) {
+      auto self_owner = self->owner.lock();
+      auto other_owner = other->owner.lock();
+      if (other_owner == nullptr || self_owner == nullptr) return;
+      if (other_owner->ID == self->ID) return;
+      spdlog::info("[{}:{}] and [{}:{}] is nearby.", self->name,
+                   self->ID.snowflake, other->name, other->ID.snowflake);
 
-    spdlog::info("{} 's owner: {}", (void*)self, (void*)self->owner);
-    spdlog::info("{} 's owner: {}", (void*)other, (void*)other->owner);
+      spdlog::info("[{}:{}] 's owner: [{}:{}]", self->name, self->ID.snowflake,
+                   self_owner->name, self_owner->ID.snowflake);
+      spdlog::info("[{}:{}] 's owner: [{}:{}]", other->name,
+                   other->ID.snowflake, other_owner->name,
+                   other_owner->ID.snowflake);
 
       other->colision = false;
       other->visible = false;
+      other->shouldBeDestroyed = true;
     };
-  veng::Model* const player_flame =
-      engine.SpawnModel("player_flame", "player_flame");
+  }
+
+  std::shared_ptr<veng::Model> const player_flame =
+      engine.SpawnLifedModel("player_flame", "player_flame", -1);
+  {
+    std::lock_guard lock(player_flame->modding);
     player_flame->scale = player->scale;
     player_flame->colision = false;
+    player_flame->networkReplicated = true;
+    player_flame->needsUpdate = true;
+  }
 
-  spdlog::info("player addr: {}", (void*)player);
-
-  veng::Model* const other_player = engine.SpawnModel("player", "other_player");
+  /*std::shared_ptr<veng::Model> const other_player =
+      engine.SpawnLifedModel("player", "other_player", -1);
+  {
+    std::lock_guard lock(other_player->modding);
     other_player->position = glm::vec3(1.f, 0.f, 0.f);
     other_player->scale = glm::vec3(.02f);
-  other_player->colision = true;
-  other_player->OnColision = [](veng::Model* self, veng::Model* other) {
-    if (other->owner == self) return;
-    spdlog::info("{} and {} is nearby.", (void*)self, (void*)other);
+    player->colision = true;
+    player->OnColision = [](utils::ThreadPool* thread_pool,
+                            std::shared_ptr<veng::Model> self,
+                            std::shared_ptr<veng::Model> other) {
+      auto self_owner = self->owner.lock();
+      auto other_owner = other->owner.lock();
+      if (other_owner == nullptr || self_owner == nullptr) return;
+      if (other_owner->ID == self->ID) return;
+      spdlog::info("[{}:{}] and [{}:{}] is nearby.", self->name,
+                   self->ID.snowflake, other->name, other->ID.snowflake);
 
-    spdlog::info("{} 's owner: {}", (void*)self, (void*)self->owner);
-    spdlog::info("{} 's owner: {}", (void*)other, (void*)other->owner);
+      spdlog::info("[{}:{}] 's owner: [{}:{}]", self->name, self->ID.snowflake,
+                   self_owner->name, self_owner->ID.snowflake);
+      spdlog::info("[{}:{}] 's owner: [{}:{}]", other->name,
+                   other->ID.snowflake, other_owner->name,
+                   other_owner->ID.snowflake);
 
       other->colision = false;
       other->visible = false;
+      other->shouldBeDestroyed = true;
     };
+    other_player->colision = true;
+  }*/
 
-  spdlog::info("other player addr: {}", (void*)other_player);
-
-  veng::Model* const camera_lag = engine.SpawnModel("", "camera_lag");
+  std::shared_ptr<veng::Model> const camera_lag =
+      engine.SpawnLifedModel("", "camera_lag", -1);
+  {
+    std::lock_guard lock(camera_lag->modding);
     camera_lag->colision = false;
     camera_lag->position = player->position;
-
-  veng::Model* const background = engine.SpawnModel("", "background");
-  background->colision = false;
-  background->position = {background->position.x, background->position.y, 30.f};
-  background->scale *= 100;
-
-  veng::Model* const background0 =
-      engine.SpawnModel("background", "background0");
-  background0->scale = background->scale;
-  veng::Model* const background1 =
-      engine.SpawnModel("background", "background1");
-  background1->scale = background->scale;
-  veng::Model* const background2 =
-      engine.SpawnModel("background", "background2");
-  background2->scale = background->scale;
-  veng::Model* const background3 =
-      engine.SpawnModel("background", "background3");
-  background3->scale = background->scale;
+  }
+
+  std::shared_ptr<veng::Model> const background =
+      engine.SpawnLifedModel("", "background", -1);
+  {
+    std::lock_guard lock(background->modding);
+    background->colision = false;
+    background->position = {background->position.x, background->position.y,
+                            30.f};
+    background->scale *= 100;
+    background->networkReplicated = false;
+  }
+
+  std::shared_ptr<veng::Model> const background0 =
+      engine.SpawnLifedModel("background", "background0", -1);
+  {
+    std::lock_guard lock(background0->modding);
+    background0->scale = background->scale;
+    background0->networkReplicated = false;
+  }
+  std::shared_ptr<veng::Model> const background1 =
+      engine.SpawnLifedModel("background", "background1", -1);
+  {
+    std::lock_guard lock(background1->modding);
+    background1->scale = background->scale;
+    background1->networkReplicated = false;
+  }
+  std::shared_ptr<veng::Model> const background2 =
+      engine.SpawnLifedModel("background", "background2", -1);
+  {
+    std::lock_guard lock(background2->modding);
+    background2->scale = background->scale;
+    background2->networkReplicated = false;
+  }
+  std::shared_ptr<veng::Model> const background3 =
+      engine.SpawnLifedModel("background", "background3", -1);
+  {
+    std::lock_guard lock(background3->modding);
+    background3->scale = background->scale;
+    background3->networkReplicated = false;
+  }
 }

Client/src/asteroid/main.cpp

@@ -3,107 +3,89 @@
 #include "glfw/glfw_monitor.h"
 #include "glfw/glfw_window.h"
 #include "socket/iocp.h"
+#include "socket/packet.h"
 #include "socket/tcp_socket.h"
 #include "socket/udp_socket.h"
 #include "socket/wsa_manager.h"
+#include "utils/ConfigManager.h"
 #include "utils/log.h"
+#include "utils/snowflake.h"
+#include "utils/utils.h"
 #include "vulkan_engine/vulkan/engine.h"
 #include "vulkan_engine/vulkan/graphics.h"
 
+std::uint8_t CLIENTID = 0;
+
 std::int32_t main(std::int32_t argc, gsl::zstring* argv) {
   Network::WSAManager wsamanager;
- #if !defined(NDEBUG)
-   utils::setDefaultLogger(spdlog::level::level_enum::debug, "log.log", 1024,
-   2);
- #endif
+
+  auto config = utils::ConfigManager::load();
+  utils::setDefaultLogger(config.logLevel, config.logFileName,
+                          config.logfileSize, config.logfileCount);
+
   utils::ThreadPool tp(0);
   Network::IOCP iocp;
   iocp.init(&tp, SessionProtocol::TCP);
 
   Network::Address addr;
-   in6_addr in6addr;
 
-   addr.set(AF_INET6, "::1", 9010);
+  addr.set(config.ipVersion, config.IP, config.Port);
 
-   Network::TCPSocket sock;
-   sock.init(AF_INET6);
-   if (sock.connect(addr) == INVALID_SOCKET) {
+  std::shared_ptr<Network::TCPSocket> TCPSock =
+      std::make_shared<Network::TCPSocket>(config.ipVersion);
+  if (TCPSock->connect(addr) == INVALID_SOCKET) {
     spdlog::error("connect()");
     std::exit(EXIT_FAILURE);
   }
+  iocp.registerSocket(TCPSock);
 
-   Network::IOCPPASSINDATA* data = new Network::IOCPPASSINDATA(16 * 1024);
-   data->socket = std::make_shared<Network::TCPSocket>(sock);
-   data->IOCPInstance = &iocp;
-   iocp.registerSocket(data);
+  auto result = iocp.recv(TCPSock, 14);
+  auto header_serialized = utils::CvtListToVector(result.get());
 
-   std::vector<Network::IOCPPASSINDATA*> send_data;
-   data->event = Network::IOCPEVENT::WRITE;
-   data->wsabuf.buf[0] = 'a';
-   data->wsabuf.buf[1] = 'b';
-   data->wsabuf.buf[2] = ' ';
-   data->wsabuf.len = 3;
-   send_data.push_back(data);
-   Network::IOCPPASSINDATA* data2 = new Network::IOCPPASSINDATA(16 * 1024);
-   data2->wsabuf.buf[0] = 'b';
-   data2->wsabuf.buf[1] = 'a';
-   data2->wsabuf.buf[2] = '\0';
-   data2->wsabuf.len = 3;
-   send_data.push_back(data2);
-   iocp.send(sock.sock, &send_data);
+  Packet::Header header;
+  header.Deserialize(header_serialized);
 
-   Network::IOCPPASSINDATA* recv_data = new Network::IOCPPASSINDATA(16 * 1024);
-   recv_data->socket = std::make_shared<Network::TCPSocket>(sock);
-   recv_data->IOCPInstance = &iocp;
-   while (!iocp.recv(recv_data)); // 어떤 데이터를 읽는걸 보장받고 싶다면 그냥 스린락 걸어버리기.
-
-   spdlog::info("recv_data: {}", recv_data->wsabuf.buf);
-
-   std::vector<Network::IOCPPASSINDATA*> send_data2;
-   data->event = Network::IOCPEVENT::WRITE;
-   data->wsabuf.buf[0] = 'c';
-   data->wsabuf.buf[1] = 'd';
-   data->wsabuf.buf[2] = ' ';
-   data->wsabuf.len = 3;
-   send_data2.push_back(data);
-   data2 = new Network::IOCPPASSINDATA(16 * 1024);
-   data2->wsabuf.buf[0] = 'd';
-   data2->wsabuf.buf[1] = 'c';
-   data2->wsabuf.buf[2] = '\0';
-   data2->wsabuf.len = 3;
-   send_data2.push_back(data2);
-   iocp.send(sock.sock, &send_data2);
-
-   recv_data = new Network::IOCPPASSINDATA(16 * 1024);
-   recv_data->socket = std::make_shared<Network::TCPSocket>(sock);
-   recv_data->IOCPInstance = &iocp;
-   while (!iocp.recv(recv_data));  // 어떤 데이터를 읽는걸 보장받고 싶다면 그냥
-                                   // 스린락 걸어버리기.
-
-   spdlog::info("recv_data: {}", recv_data->wsabuf.buf);
+  result = iocp.recv(TCPSock, header.body_length);
+  std::vector<char> data = utils::CvtListToVector(result.get());
+  ::memcpy(&CLIENTID, data.data(), 1);  // id 받기
 
   const veng::GlfwInitialization _glfw;
 
-   veng::Window window("Vulkan Engine", {800, 600});
+  veng::Window window("Asteroid", {800, 600});
   window.TryMoveToMonitor(0);
 
   veng::Graphics graphics(&window);
-   veng::Engine engine(&graphics, &tp);
+  veng::Engine engine(&graphics, &tp, &iocp);
 
   engine.LoadModelAsset("assets/player.fbx", "player");
   engine.LoadModelAsset("assets/player_flame.fbx", "player_flame");
   engine.LoadModelAsset("assets/bullet.fbx", "bullet");
   engine.LoadModelAsset("assets/background.fbx", "background");
 
-   engine.BeginPlay = BeginPlay;
+  engine.BeginPlay = [ID64 = config.playerid](veng::Engine& engine) {
+    utils::Snowflake ID;
+    ID.snowflake = ID64;
+    BeginPlay(engine, ID);
+  };
   engine.Tick = Tick;
 
   engine.init();
 
+  std::shared_ptr<veng::Model> const player = engine.GetSpawnedObject("player");
+  config.playerid = player->ID.snowflake;
+  utils::ConfigManager::save(config);
+
+  tp.enqueueJob(
+      [engine = &engine, TCPSock](utils::ThreadPool* tp, std::uint32_t __) {
+        engine->ResponseToServerAndRefresh(TCPSock);
+      },
+      0);
+
   while (!window.ShouldClose()) {
     glfwPollEvents();
 
     engine.Update();
+    engine.NetUpdate(TCPSock);
   }
 
   return EXIT_SUCCESS;

Client/src/asteroid/tick.cpp

@@ -5,15 +5,26 @@
 void Tick(veng::Engine& engine, std::float_t delta_time) {
   static std::float_t bullet_cooldown = 0.f;
 
-  veng::Model* const player = engine.GetSpawnedObject("player");
-  veng::Model* const player_flame = engine.GetSpawnedObject("player_flame");
-  veng::Model* const camera_lag = engine.GetSpawnedObject("camera_lag");
+  std::shared_ptr<veng::Model> const player = engine.GetSpawnedObject("player");
+  std::shared_ptr<veng::Model> const player_flame = engine.GetSpawnedObject("player_flame");
+  std::shared_ptr<veng::Model> const camera_lag = engine.GetSpawnedObject("camera_lag");
 
-  veng::Model* const background = engine.GetSpawnedObject("background");
-  veng::Model* const background0 = engine.GetSpawnedObject("background0");
-  veng::Model* const background1 = engine.GetSpawnedObject("background1");
-  veng::Model* const background2 = engine.GetSpawnedObject("background2");
-  veng::Model* const background3 = engine.GetSpawnedObject("background3");
+  std::shared_ptr<veng::Model> const background = engine.GetSpawnedObject("background");
+  std::shared_ptr<veng::Model> const background0 = engine.GetSpawnedObject("background0");
+  std::shared_ptr<veng::Model> const background1 = engine.GetSpawnedObject("background1");
+  std::shared_ptr<veng::Model> const background2 = engine.GetSpawnedObject("background2");
+  std::shared_ptr<veng::Model> const background3 = engine.GetSpawnedObject("background3");
+
+  std::lock_guard<std::mutex> lock[] = {
+      std::lock_guard<std::mutex>(player->modding),
+      std::lock_guard<std::mutex>(player_flame->modding),
+      std::lock_guard<std::mutex>(camera_lag->modding),
+      std::lock_guard<std::mutex>(background->modding),
+      std::lock_guard<std::mutex>(background0->modding),
+      std::lock_guard<std::mutex>(background1->modding),
+      std::lock_guard<std::mutex>(background2->modding),
+      std::lock_guard<std::mutex>(background3->modding)
+  };
 
   glm::vec3 forward = player->rotation * glm::vec3(0, 1, 0);
   glm::vec3 right = player->rotation * glm::vec3(1, 0, 0);
@@ -31,17 +42,38 @@ void Tick(veng::Engine& engine, std::float_t delta_time) {
       (-stiffness * displacement - damping * camera_lag->linear_velocity) *
       delta_time;
 
+  /*camera_lag->linear_velocity = glm::vec3(0);
+  camera_lag->position = player->position;*/
+
   engine.view = glm::lookAt(
       glm::vec3(camera_lag->position.x, camera_lag->position.y, -5.f),
       camera_lag->position, glm::vec3(0.f, -1.f, 0.f));
 
+  static bool w_laststate = false;
   if (glfwGetKey(engine.vulkan_graphics->window->GetHandle(), GLFW_KEY_W) ==
       GLFW_PRESS) {
     player->linear_acceleration = glm::normalize(forward) * 10.f;
+    player_flame->linear_velocity = player->linear_velocity;
+    player_flame->position = player->position;
+    player_flame->angular_velocity = player->angular_velocity;
+    player_flame->rotation = player->rotation;
     player_flame->visible = true;
+
+    if (!w_laststate) {
+      player->needsUpdate = true;
+      player_flame->needsUpdate = true;
+      player->updateRedundantCount = 0;
+      w_laststate = true;
+    }
   } else {
     player->linear_acceleration = forward * .0f;
     player_flame->visible = false;
+    if (w_laststate) {
+      player->needsUpdate = true;
+      player_flame->needsUpdate = true;
+      player->updateRedundantCount = 0;
+      w_laststate = false;
+    }
   }
 
   if (bullet_cooldown > std::numeric_limits<std::float_t>::epsilon()) {
@@ -53,28 +85,72 @@ void Tick(veng::Engine& engine, std::float_t delta_time) {
       bullet_cooldown -= delta_time;
     } else {
       bullet_cooldown = .2f;
-      veng::Model* const bullet =
+      std::shared_ptr<veng::Model> const bullet =
           engine.SpawnLifedModel("bullet", "bullet", 10.f);
       bullet->linear_velocity = player->linear_velocity + forward * 10.f;
       bullet->position = player->position + forward * player->scale.x * 10.f;
       bullet->owner = player;
+      bullet->OwnerID = player->ID;
       bullet->scale = player->scale;
       bullet->colision = true;
+      bullet->OnColision = [](utils::ThreadPool* thread_pool,
+                              std::shared_ptr<veng::Model> self,
+                              std::shared_ptr<veng::Model> other) {
+        auto self_owner = self->owner.lock();
+        auto other_owner = other->owner.lock();
+        if (other_owner == nullptr || self_owner == nullptr) return;
+        if (other_owner->ID == self->ID) return;
+        spdlog::info("[{}:{}] and [{}:{}] is nearby.", self->name,
+                     self->ID.snowflake, other->name, other->ID.snowflake);
 
-      spdlog::info("bullet address: {}", (void*)bullet);
+        spdlog::info("[{}:{}] 's owner: [{}:{}]", self->name,
+                     self->ID.snowflake, self_owner->name,
+                     self_owner->ID.snowflake);
+        spdlog::info("[{}:{}] 's owner: [{}:{}]", other->name,
+                     other->ID.snowflake, other_owner->name,
+                     other_owner->ID.snowflake);
+
+        other->colision = false;
+        other->visible = false;
+        other->shouldBeDestroyed = true;
+      };
+      bullet->networkReplicated = true;
+      bullet->needsUpdate = true;
     }
   }
+
+  static bool ad_laststate = false;
+  right = player->rotation * glm::vec3(0, 0, 1);
   if (glfwGetKey(engine.vulkan_graphics->window->GetHandle(), GLFW_KEY_A) ==
       GLFW_PRESS) {
-    right = player->rotation * glm::vec3(0, 0, 1);
     player->angular_velocity = right * 6.f;
-  } else if (glfwGetKey(engine.vulkan_graphics->window->GetHandle(),
+    if (!ad_laststate) {
+      player->needsUpdate = true;
+      player->updateRedundantCount = 1;
+      ad_laststate = true;
+    }
+  }
+
+  if (glfwGetKey(engine.vulkan_graphics->window->GetHandle(),
                         GLFW_KEY_D) == GLFW_PRESS) {
-    right = player->rotation * glm::vec3(0, 0, 1);
     player->angular_velocity = right * -6.f;
-  } else {
-    right = player->rotation * glm::vec3(0, 0, 1);
+    if (!ad_laststate) {
+      player->needsUpdate = true;
+      player->updateRedundantCount = 1;
+      ad_laststate = true;
+    }
+  }
+
+  if (glfwGetKey(engine.vulkan_graphics->window->GetHandle(), GLFW_KEY_A) ==
+          GLFW_RELEASE &&
+      glfwGetKey(engine.vulkan_graphics->window->GetHandle(), GLFW_KEY_D) ==
+          GLFW_RELEASE) {
     player->angular_velocity = right * 0.f;
+    if (ad_laststate) {
+      player->needsUpdate = true;
+      player->updateRedundantCount = 2;
+      ad_laststate = false;
+    }
   }
 
   player_flame->rotation = player->rotation;

Client/src/utils/ConfigManager.cpp

@@ -0,0 +1,60 @@
+#include "Utils/ConfigManager.h"
+
+#include <json/json.h>
+
+#include <fstream>
+#include <iostream>
+#include <string>
+
+namespace utils {
+Config ConfigManager::load() {
+  Config config;
+
+  std::ifstream configfile("config.json", std::ifstream::binary);
+  if (!configfile.is_open()) {
+    std::ofstream defaultConfig("config.json", std::ios::out);
+    config.configJsonRoot["IP Version"] = AF_INET6;
+    config.configJsonRoot["IP"] = "::1";
+    config.configJsonRoot["Port"] = 9010;
+    config.configJsonRoot["LogLevel"] = 1;
+    config.configJsonRoot["LogfileName"] = "log.log";
+    config.configJsonRoot["LogfileSize"] = UINT32_MAX;
+    config.configJsonRoot["LogfileCount"] = 5;
+    config.configJsonRoot["PlayerID"] = 0;
+    defaultConfig << config.configJsonRoot;
+    defaultConfig.close();
+    spdlog::critical(
+        "\"config.json\" is missing. Default configuration has been written.");
+  }
+  try {
+    if (configfile.is_open()) configfile >> config.configJsonRoot;
+
+    config.ipVersion = config.configJsonRoot["IP Version"].asInt();
+    if (config.ipVersion != AF_INET && config.ipVersion != AF_INET6)
+      throw std::runtime_error("Invalid IP Version.");
+
+    config.IP = config.configJsonRoot["IP"].asCString();
+
+    config.Port = config.configJsonRoot["Port"].asInt();
+    if (config.Port < 0 || config.Port > 65535)
+      throw std::runtime_error("Invalid listen port.");
+
+    int ll_ = config.configJsonRoot["LogLevel"].asInt();
+    if (ll_ >= 0 && ll_ < spdlog::level::n_levels)
+      config.logLevel = (spdlog::level::level_enum)ll_;
+    else
+      throw std::runtime_error("Invalid log level.");
+
+    config.logFileName = config.configJsonRoot["LogfileName"].asCString();
+    config.logfileSize = config.configJsonRoot["LogfileSize"].asUInt();
+    config.logfileCount = config.configJsonRoot["LogfileCount"].asUInt();
+
+    config.playerid = config.configJsonRoot["PlayerID"].asUInt64();
+  } catch (Json::RuntimeError e) {
+    spdlog::critical(
+        std::string(std::string("[Json Error: ]") + e.what()).c_str());
+    std::exit(EXIT_FAILURE);
+  }
+  return config;
+}
+}  // namespace Chattr

Client/src/vulkan_engine/asset/object/model.cpp

@@ -1,30 +0,0 @@
-#include "vulkan_engine/asset/object/model.h"
-
-#include "vulkan_engine/vulkan/graphics.h"
-
-namespace veng {
-
-Model::~Model() {
-  if (graphics_ == nullptr) return;
-
-  graphics_->DestroyTexture(material.texture_handle);
-  graphics_->DestroyBuffer(vertex_buffer);
-  graphics_->DestroyBuffer(index_buffer);
-}
-
-void veng::Model::Update(float dt) {
-  linear_velocity += linear_acceleration * dt;
-  position += linear_velocity * dt;
-
-  angular_velocity += angular_acceleration * dt;
-  if (glm::length(angular_velocity) > 1e-6f) {
-    rotation =
-        glm::normalize(glm::rotate(rotation, glm::length(angular_velocity * dt),
-                                   glm::normalize(angular_velocity)));
-  }
-
-  transform = glm::translate(glm::mat4(1.0f), position) *
-               glm::mat4_cast(rotation) * glm::scale(glm::mat4(1.0f), scale);
-}
-
-}  // namespace veng

Client/src/vulkan_engine/vulkan/engine.cpp

@@ -1,177 +0,0 @@
-#include "vulkan_engine/vulkan/engine.h"
-
-#include "precomp.h"
-
-namespace veng {
-
-void Engine::init() {
-  glm::ivec2 window_size_ = vulkan_graphics->window->GetFramebufferSize();
-  view = glm::lookAt(glm::vec3(0.f, 0.f, -5.f), glm::vec3(0.f, 0.f, 0.f),
-                     glm::vec3(0.f, -1.f, 0.f));
-  projection = glm::perspective(
-      glm::radians(103.f),
-      (std::float_t)window_size_.x / (std::float_t)window_size_.y, 0.1f,
-      1000.f);
-  vulkan_graphics->SetViewProjection(view, projection);
-
-  if (BeginPlay != nullptr) BeginPlay(*this);
-}
-
-void Engine::LoadModelAsset(std::string path, std::string name) {
-  veng::Model model(vulkan_graphics);
-  asset_loader_.setPath(path);
-  asset_loader_.loadModel(model);
-
-  model.vertex_buffer = vulkan_graphics->CreateVertexBuffer(model.vertices);
-  model.index_buffer = vulkan_graphics->CreateIndexBuffer(model.indices);
-  model.material.texture_handle =
-      vulkan_graphics->CreateTexture(asset_loader_.readTexture());
-  model_assets_[name] = std::move(model);
-}
-
-const Model* Engine::GetStaticModel(std::string name) {
-  if (model_assets_.find(name) != model_assets_.end())
-    return &model_assets_[name];
-  return nullptr;
-}
-
-Model* Engine::SpawnModel(std::string asset_name, std::string name) {
-  if (asset_name == "") {
-    Model model_to_spawn(nullptr);
-    model_to_spawn.visible = false;
-    dynamic_immortal_models_[name] = std::move(model_to_spawn);
-    return &dynamic_immortal_models_[name];
-  }
-
-  if (dynamic_immortal_models_.find(name) == dynamic_immortal_models_.end()) {
-    Model model_to_spawn(*GetStaticModel(asset_name));
-    dynamic_immortal_models_[name] = std::move(model_to_spawn);
-    return &dynamic_immortal_models_[name];
-  }
-
-  std::uint32_t i = 0;
-  for (i = 0; i < std::numeric_limits<std::uint32_t>::max();) {
-    if (dynamic_immortal_models_.find(name + std::to_string(i)) ==
-        dynamic_immortal_models_.end()) {
-      Model model_to_spawn(*GetStaticModel(asset_name));
-      dynamic_immortal_models_[name + std::to_string(i)] =
-          std::move(model_to_spawn);
-      break;
-    }
-    i++;
-  }
-
-  if (i == std::numeric_limits<std::uint32_t>::max() - 1)
-    return nullptr;
-  else
-    return &dynamic_immortal_models_[name + std::to_string(i)];
-}
-
-Model* Engine::SpawnLifedModel(std::string asset_name, std::string name,
-                               std::float_t lifespan) {
-  if (asset_name == "") {
-    Model model_to_spawn(nullptr);
-    model_to_spawn.visible = false;
-    dynamic_models_[name] = std::make_pair(std::move(model_to_spawn), lifespan);
-    return &dynamic_models_[name].first;
-  }
-  if (dynamic_models_.find(name) == dynamic_models_.end()) {
-    Model model_to_spawn(*GetStaticModel(asset_name));
-    dynamic_models_[name] = std::make_pair(std::move(model_to_spawn), lifespan);
-    return &dynamic_models_[name].first;
-  }
-
-  std::uint32_t i = 0;
-  for (i = 0; i < std::numeric_limits<std::uint32_t>::max();) {
-    if (dynamic_models_.find(name + std::to_string(i)) ==
-        dynamic_models_.end()) {
-      Model model_to_spawn(*GetStaticModel(asset_name));
-      dynamic_models_[name + std::to_string(i)] =
-          std::make_pair(std::move(model_to_spawn), lifespan);
-      break;
-    }
-    i++;
-  }
-
-  if (i == std::numeric_limits<std::uint32_t>::max() - 1)
-    return nullptr;
-  else
-    return &dynamic_models_[name + std::to_string(i)].first;
-}
-
-Model* Engine::GetSpawnedObject(std::string name) {
-  for (auto it = dynamic_immortal_models_.begin();
-       it != dynamic_immortal_models_.end();) {
-    if (it->first == name) return &it->second;
-    ++it;
-  }
-
-  for (auto it = dynamic_models_.begin(); it != dynamic_models_.end();) {
-    if (it->first == name) return &it->second.first;
-    ++it;
-  }
-
-  return nullptr;
-}
-
-void Engine::Update() {
-  glm::ivec2 framebuffer_size = vulkan_graphics->window->GetFramebufferSize();
-  if (framebuffer_size != window_size_ && framebuffer_size.x != 0 &&
-      framebuffer_size.y != 0) {
-    window_size_ = framebuffer_size;
-    auto grater = (framebuffer_size.x > framebuffer_size.y)
-                      ? framebuffer_size.x
-                      : framebuffer_size.y;
-    view = glm::lookAt(glm::vec3(0.f, 0.f, -5.f), glm::vec3(0.f, 0.f, 0.f),
-                       glm::vec3(0.f, -1.f, 0.f));
-    projection = glm::perspective(
-        glm::radians(103.f),
-        (std::float_t)framebuffer_size.x / (std::float_t)framebuffer_size.y,
-        0.1f, 1000.f);
-  }
-  vulkan_graphics->SetViewProjection(view, projection);
-
-  if (vulkan_graphics->BeginFrame()) {
-    std::double_t current_time = glfwGetTime();
-    std::float_t delta_time =
-        static_cast<std::float_t>(current_time - last_frame_time_);
-    last_frame_time_ = current_time;
-
-    if (Tick != nullptr) Tick(*this, delta_time);
-
-    std::vector<Model*> models;
-    models.reserve(dynamic_immortal_models_.size() +
-                               dynamic_models_.size());
-
-    for (auto it = dynamic_immortal_models_.begin();
-         it != dynamic_immortal_models_.end();) {
-      models.push_back(&it->second);
-
-      ++it;
-    }
-
-    for (auto it = dynamic_models_.begin(); it != dynamic_models_.end();) {
-      if (it->second.second < 0.f) {
-        it = dynamic_models_.erase(it);
-        continue;
-      }
-      else {
-        it->second.second -= delta_time;
-      }
-      models.push_back(&it->second.first);
-
-      ++it;
-    }
-
-    for (auto it : models) {
-      it->Update(delta_time);
-      vulkan_graphics->RenderModel(it);
-    }
-
-    physics_controller_.invokeOnColisionEvent(thread_pool_, {models.data(), models.size()});
-
-    vulkan_graphics->EndFrame();
-  }
-}
-
-}  // namespace veng

Server/CMakeLists.txt

@@ -4,10 +4,112 @@ set(PROJECT_NAME "Server")
 
 project(${PROJECT_NAME})
 
-add_executable(${PROJECT_NAME}
-    "${CMAKE_CURRENT_SOURCE_DIR}/src/echoserver.cpp"
+find_package(Vulkan REQUIRED)
+
+include(FetchContent)
+
+FetchContent_Declare(
+    glm
+    GIT_REPOSITORY "https://github.com/g-truc/glm.git"
+    GIT_TAG "1.0.1"
+    GIT_SHALLOW ON
 )
+FetchContent_MakeAvailable(glm)
+
+FetchContent_Declare(
+    spdlog
+    GIT_REPOSITORY "https://github.com/gabime/spdlog.git"
+    GIT_TAG "v1.15.2"
+    GIT_SHALLOW ON
+)
+FetchContent_MakeAvailable(spdlog)
+
+FetchContent_Declare(
+    glfw
+    GIT_REPOSITORY "https://github.com/glfw/glfw.git"
+    GIT_TAG "3.4"
+    GIT_SHALLOW ON
+)
+FetchContent_MakeAvailable(glfw)
+
+FetchContent_Declare(
+    GSL
+    GIT_REPOSITORY "https://github.com/microsoft/GSL.git"
+    GIT_TAG "v4.2.0"
+    GIT_SHALLOW ON
+)
+FetchContent_MakeAvailable(GSL)
+
+FetchContent_Declare(
+    ASSIMP
+    GIT_REPOSITORY "https://github.com/assimp/assimp.git"
+    GIT_TAG "v5.4.3"
+    GIT_SHALLOW ON
+)
+FetchContent_MakeAvailable(ASSIMP)
+
+FetchContent_Declare(
+    JSONCPP
+    GIT_REPOSITORY "https://github.com/open-source-parsers/jsoncpp.git"
+    GIT_TAG "1.9.6"
+    GIT_SHALLOW ON
+)
+FetchContent_MakeAvailable(JSONCPP)
+
+file(GLOB_RECURSE Sources CONFIGURE_DEPENDS
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp"
+)
+
+add_executable(${PROJECT_NAME} ${RootProjectSources} ${Sources})
+target_link_libraries(${PROJECT_NAME} PRIVATE Vulkan::Vulkan)
+target_link_libraries(${PROJECT_NAME} PRIVATE glm)
+target_link_libraries(${PROJECT_NAME} PRIVATE glfw)
+target_link_libraries(${PROJECT_NAME} PRIVATE Microsoft.GSL::GSL)
+target_link_libraries(${PROJECT_NAME} PRIVATE spdlog)
+target_link_libraries(${PROJECT_NAME} PRIVATE assimp::assimp)
+target_link_libraries(${PROJECT_NAME} PRIVATE jsoncpp_static)
 
 if(WIN32)
     target_link_libraries(${PROJECT_NAME} PRIVATE ws2_32)
 endif()
+if(UNIX AND NOT APPLE AND CMAKE_BUILD_TYPE STREQUAL "Release")
+    set_target_properties(${PROJECT_NAME} PROPERTIES
+        BUILD_WITH_INSTALL_RPATH TRUE
+        INSTALL_RPATH "$ORIGIN"
+        SKIP_BUILD_RPATH FALSE
+        BUILD_RPATH "$ORIGIN"
+    )
+endif()
+
+target_include_directories(${PROJECT_NAME} PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../include" "${CMAKE_CURRENT_SOURCE_DIR}/include")
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_20)
+
+target_precompile_headers(${PROJECT_NAME} PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../include/precomp.h")
+
+add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    "$<TARGET_FILE:spdlog>"
+    "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
+    COMMENT "Copying spdlog DLL/so to output directory"
+)
+
+add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_directory
+    "$<TARGET_FILE_DIR:spdlog>"
+    "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
+    COMMENT "Copying spdlog library files and symlinks to output directory"
+)
+
+add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    "$<TARGET_FILE:jsoncpp_static>"
+    "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
+    COMMENT "Copying jsoncpp DLL/so to output directory"
+)
+
+add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_directory
+    "$<TARGET_FILE_DIR:jsoncpp_static>"
+    "$<TARGET_FILE_DIR:${PROJECT_NAME}>"
+    COMMENT "Copying jsoncpp library files and symlinks to output directory"
+)

Server/src/echoserver.cpp

@@ -1,93 +0,0 @@
-#pragma once
-
-#ifdef _WIN32
-#include <winsock2.h>
-#include <ws2tcpip.h>
-#include <ws2bth.h>
-#include <ws2def.h>
-#include <windows.h>
-#define in_addr_t ULONG
-#elif __linux__
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/epoll.h>
-#include <arpa/inet.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <netinet/in.h>
-#include <sys/eventfd.h>
-#define SOCKET int
-#define INVALID_SOCKET -1
-#define SOCKET_ERROR -1
-#else
-#error "이 플랫폼은 지원되지 않습니다."
-#endif
-
-#include <chrono>
-
-void err_quit(const char *msg) {
-  char *msgbuf = strerror(errno);
-  fprintf(stderr, "[%s] %s\n", msg, msgbuf);
-  exit(1);
-}
-
-void err_display(const char *msg) {
-  char *msgbuf = strerror(errno);
-  fprintf(stderr, "[%s] %s\n", msg, msgbuf);
-}
-
-#define LISTENIP "::"
-#define LISTENPORT 9010
-#define BUFSIZE 100
-
-int main(int argc, char *argv[]) {
-  WSADATA wsa;
-  if (WSAStartup(MAKEWORD(2, 2), &wsa) != 0) {
-    err_quit("WSAStartup()");
-    return EXIT_FAILURE;
-  }
-  SOCKET listenSocket = socket(AF_INET6, SOCK_STREAM, 0);
-  if (listenSocket == INVALID_SOCKET) err_quit("socket()");
-
-  struct sockaddr_in6 serverAddr;
-  memset(&serverAddr, 0, sizeof(serverAddr));
-  serverAddr.sin6_family = AF_INET6;
-  inet_pton(AF_INET6, LISTENIP, &serverAddr.sin6_addr);
-  serverAddr.sin6_port = htons(LISTENPORT);
-
-  if (SOCKET_ERROR ==
-      bind(listenSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)))
-    err_quit("bind()");
-  if (SOCKET_ERROR == listen(listenSocket, SOMAXCONN)) err_quit("listen()");
-
-  SOCKET client_sock;
-  struct sockaddr_in6 client_addr;
-  socklen_t addr_len;
-
-  addr_len = sizeof(client_addr);
-  printf("Waiting for connection...\n");
-  client_sock =
-      accept(listenSocket, (struct sockaddr *)&client_addr, &addr_len);
-  if (client_sock == INVALID_SOCKET) err_quit("accept()");
-  printf("Connection established!\n");
-
-  char buf[BUFSIZE + 1];
-
-  while (2) {
-    int retVal = recv(client_sock, buf, BUFSIZE, 0);
-    if (retVal == SOCKET_ERROR)
-      err_display("recv()");
-    else if (retVal == 0)
-      break;
-
-    char ipv6str[INET6_ADDRSTRLEN];
-    inet_ntop(AF_INET6, &client_addr, ipv6str, sizeof(ipv6str));
-    buf[retVal] = '\0';
-    printf("[TCP/%s:%d] %s\n", ipv6str, ntohs(client_addr.sin6_port), buf);
-
-    if (SOCKET_ERROR == send(client_sock, buf, BUFSIZE, 0))
-      err_display("send()");
-  }
-
-  WSACleanup();
-}

Server/src/server.cpp

@@ -0,0 +1,227 @@
+#include "glfw/glfw_initialization.h"
+#include "glfw/glfw_monitor.h"
+#include "glfw/glfw_window.h"
+#include "socket/iocp.h"
+#include "socket/packet.h"
+#include "socket/tcp_socket.h"
+#include "socket/udp_socket.h"
+#include "socket/wsa_manager.h"
+#include "utils/ConfigManager.h"
+#include "utils/log.h"
+#include "utils/snowflake.h"
+#include "utils/utils.h"
+#include "vulkan_engine/asset/object/model.h"
+#include "vulkan_engine/vulkan/physics.h"
+
+#define TICKRATE 30
+constexpr double TICKDELAY = (1 / TICKRATE);
+
+std::uint8_t CLIENTID = 0;
+
+std::unordered_map<utils::Snowflake, std::shared_ptr<veng::Model>> MODELS;
+std::mutex MODELS_MUTEX;
+std::list<std::shared_ptr<Network::Socket>> CLIENTS;
+std::mutex CLIENTS_MUTEX;
+
+void EchoClient(utils::ThreadPool* tp, Network::IOCP* iocp,
+                std::shared_ptr<Network::Socket> NewSock,
+                Network::Address NewAddr) {
+  if (NewSock->sock == 0) return;
+  std::future<std::list<char>> result;
+  Packet::Header header;
+  std::vector<char> recv_data;
+
+  result = iocp->recv(NewSock, 14);
+  recv_data = utils::CvtListToVector(result.get());
+
+  header.Deserialize(recv_data);
+
+  result = iocp->recv(NewSock, header.body_length);
+  recv_data = utils::CvtListToVector(result.get());
+
+  switch (header.opcode) {
+    case Packet::Opcode::UPDATEMODEL: {
+      veng::Model model;
+      model.Deserialize(recv_data);
+
+      std::lock_guard lock(MODELS_MUTEX);
+      auto ID = model.ID;
+      if (MODELS.find(ID) == MODELS.end()) {
+        spdlog::info("model received: {}:{}", model.name, ID.snowflake);
+        MODELS[ID] = std::make_shared<veng::Model>();
+        MODELS[ID]->Deserialize(recv_data);
+        MODELS[ID]->OnColision = [](utils::ThreadPool* thread_pool,
+                                   std::shared_ptr<veng::Model> self,
+                                   std::shared_ptr<veng::Model> other) {
+          if (self->shouldBeDestroyed || other->shouldBeDestroyed) return;
+          spdlog::info("[{}:{}] and [{}:{}] is nearby.", self->name,
+                       self->ID.snowflake, other->name, other->ID.snowflake);
+
+          other->colision = false;
+          other->visible = false;
+          other->shouldBeDestroyed = true;
+          self->colision = false;
+          self->visible = false;
+          self->shouldBeDestroyed = true;
+        };
+      } else {
+        MODELS[ID]->Deserialize(recv_data);
+      }
+      MODELS[ID]->needsUpdate = true;
+    } break;
+    default:
+      spdlog::error("unknown data type");
+  }
+
+  tp->enqueueJob(EchoClient, iocp, NewSock, NewAddr);
+}
+
+void ClientRefresher(utils::ThreadPool* tp, Network::IOCP* iocp) {
+  static double last_all_updated;
+  static double last_frame_time_;
+  auto current_time = glfwGetTime();
+  bool needs_all_update = false;
+  if (current_time - last_all_updated >= TICKDELAY) {
+    needs_all_update = true;
+    last_all_updated = glfwGetTime();
+  }
+  auto delta_time = current_time - last_frame_time_;
+  last_frame_time_ = current_time;
+
+  std::lock_guard client_lock(CLIENTS_MUTEX);
+  for (auto it = CLIENTS.begin(); it != CLIENTS.end();) {
+    if (*it == nullptr || it->get()->sock == 0)
+      it = CLIENTS.erase(it);
+    else
+      ++it;
+  }
+
+  std::lock_guard model_lock(MODELS_MUTEX);
+  for (auto it = MODELS.begin(); it != MODELS.end();) {
+    auto& model = it->second;
+
+    if (model->shouldBeDestroyed) {
+      it = MODELS.erase(it);
+      continue;
+    }
+    ++it;
+  }
+
+  for (auto it = MODELS.begin(); it != MODELS.end();) {
+    auto& model = it->second;
+
+    if (std::abs(model->lifespan + 1.f) <
+        std::numeric_limits<float>::epsilon()) {
+      ++it;
+      continue;
+    }
+
+    if (model->lifespan <= 0.f) {
+      it->second->shouldBeDestroyed = true;
+      ++it;
+      continue;
+    }
+
+    model->lifespan -= delta_time;
+    ++it;
+  }
+
+  for (auto& model : MODELS) {
+    if (model.second->name == "camera_lag") continue;
+    model.second->Update(delta_time);
+    veng::Physics::invokeOnColisionEvent(tp, MODELS);
+    for (auto& client : CLIENTS) {
+      if (client->sock == 0) continue;
+      std::vector<char> send_data;
+      auto model_serialized = model.second->Serialize();
+      Packet::Header header;
+
+      if (model.second->shouldBeDestroyed) {
+        header.opcode = Packet::Opcode::DESPAWNMODEL;
+      } else {
+        header.opcode = Packet::Opcode::UPDATEMODEL;
+      }
+
+      header.timestamp = glfwGetTime();
+      header.body_length = model_serialized.size();
+      auto header_serialized = header.Serialize();
+      send_data.insert(send_data.end(), header_serialized.begin(),
+                       header_serialized.end());
+      send_data.insert(send_data.end(), model_serialized.begin(),
+                       model_serialized.end());
+      /*if (!model.second->needsUpdate && !needs_all_update &&
+          !model.second->shouldBeDestroyed) {
+        continue;
+      }*/
+      if (!needs_all_update) {
+        continue;
+      }
+      model.second->needsUpdate = false;
+      if (iocp->send(client, send_data) == -1) {
+        client->sock = 0;
+      }
+      // spdlog::debug("server-side updated : [{}:{}]", model.second.name,
+      // model.second.ID.snowflake);
+    }
+  }
+
+  tp->enqueueJob(ClientRefresher, iocp);
+}
+
+int main(int argc, char* argv[]) {
+  Network::WSAManager wsamanager;
+  const veng::GlfwInitialization _glfw;
+  utils::Config config = utils::ConfigManager::load();
+  utils::setDefaultLogger(config.logLevel, config.logFileName,
+                          config.logfileSize, config.logfileCount);
+
+  utils::ThreadPool tp(0);
+  Network::IOCP iocp;
+  iocp.init(&tp, SessionProtocol::TCP);
+
+  Network::Address addr;
+
+  addr.set(config.ipVersion, config.IP, config.Port);
+
+  std::shared_ptr<Network::TCPSocket> TCPSock =
+      std::make_shared<Network::TCPSocket>(config.ipVersion);
+  if (TCPSock->bind(addr) == INVALID_SOCKET) {
+    spdlog::error("bind()");
+    std::exit(EXIT_FAILURE);
+  }
+  if (TCPSock->listen(SOMAXCONN) == INVALID_SOCKET) {
+    spdlog::error("listen()");
+    std::exit(EXIT_FAILURE);
+  }
+
+  tp.enqueueJob(ClientRefresher, &iocp);
+
+  while (true) {
+    std::shared_ptr<Network::TCPSocket> NewSock;
+    Network::Address NewAddr = addr;
+    spdlog::info("Waiting for connection");
+    TCPSock->accept(NewSock, NewAddr);
+
+    iocp.registerSocket(NewSock);
+
+    Packet::Header header;
+    std::vector<char> packet;
+
+    header.opcode = Packet::Opcode::CLIENTID;
+    header.timestamp = glfwGetTime();
+    header.body_length = 1;
+    packet = header.Serialize();
+    packet.resize(packet.size() + 1);
+
+    std::lock_guard lock(CLIENTS_MUTEX);
+    std::uint8_t client_id = (std::uint8_t)(CLIENTS.size() - 1);
+    ::memcpy(packet.data() + 14, &client_id, 1);
+
+    iocp.send(NewSock, packet);
+
+    auto ping = glfwGetTime() - header.timestamp;
+    CLIENTS.push_back(NewSock);
+
+    tp.enqueueJob(EchoClient, &iocp, NewSock, NewAddr);
+  }
+}

Server/src/utils/ConfigManager.cpp

@@ -0,0 +1,57 @@
+#include "utils/ConfigManager.h"
+
+#include <json/json.h>
+
+#include <fstream>
+#include <iostream>
+#include <string>
+
+namespace utils {
+Config ConfigManager::load() {
+  Config config;
+
+  std::ifstream configfile("config.json", std::ifstream::binary);
+  if (!configfile.is_open()) {
+    std::ofstream defaultConfig("config.json", std::ios::out);
+    config.configJsonRoot["IP Version"] = AF_INET6;
+    config.configJsonRoot["IP"] = "::1";
+    config.configJsonRoot["Port"] = 9010;
+    config.configJsonRoot["LogLevel"] = 1;
+    config.configJsonRoot["LogfileName"] = "log.log";
+    config.configJsonRoot["LogfileSize"] = UINT32_MAX;
+    config.configJsonRoot["LogfileCount"] = 5;
+    defaultConfig << config.configJsonRoot;
+    defaultConfig.close();
+    spdlog::critical(
+        "\"config.json\" is missing. Default configuration has been written.");
+  }
+  try {
+    if (configfile.is_open()) configfile >> config.configJsonRoot;
+
+    config.ipVersion = config.configJsonRoot["IP Version"].asInt();
+    if (config.ipVersion != AF_INET && config.ipVersion != AF_INET6)
+      throw std::runtime_error("Invalid IP Version.");
+
+    config.IP = config.configJsonRoot["IP"].asCString();
+
+    config.Port = config.configJsonRoot["Port"].asInt();
+    if (config.Port < 0 || config.Port > 65535)
+      throw std::runtime_error("Invalid listen port.");
+
+    int ll_ = config.configJsonRoot["LogLevel"].asInt();
+    if (ll_ >= 0 && ll_ < spdlog::level::n_levels)
+      config.logLevel = (spdlog::level::level_enum)ll_;
+    else
+      throw std::runtime_error("Invalid log level.");
+
+    config.logFileName = config.configJsonRoot["LogfileName"].asCString();
+    config.logfileSize = config.configJsonRoot["LogfileSize"].asUInt();
+    config.logfileCount = config.configJsonRoot["LogfileCount"].asUInt();
+  } catch (Json::RuntimeError e) {
+    spdlog::critical(
+        std::string(std::string("[Json Error: ]") + e.what()).c_str());
+    std::exit(EXIT_FAILURE);
+  }
+  return config;
+}
+}  // namespace Chattr

impl/session/session.cpp

@@ -11,36 +11,11 @@ Session::Session(gsl::not_null<Network::IOCP*> iocp, utils::ThreadPool* tp,
     : iocp_(iocp), tp_(tp), proto_(proto) {
   switch (proto) {
     case SessionProtocol::UDP:
-    case SessionProtocol::QUIC: {
-      Network::UDPSocket* sock = new Network::UDPSocket();
-      sock_ = sock;
-      sock->init(addr.family);
-      switch (type) {
-        case SessionType::CONNECT:
-          ssl_ctx_ = ::SSL_CTX_new(::OSSL_QUIC_client_method());
-          if (ssl_ctx_ == nullptr) {
-            spdlog::critical("SSL_CTX_new()");
-            std::exit(EXIT_FAILURE);
-          }
-          ::SSL_CTX_set_verify(ssl_ctx_, SSL_VERIFY_PEER, NULL);
-
-          if (!::SSL_CTX_set_default_verify_paths(ssl_ctx_)) {
-            spdlog::critical("SSL_CTX_set_default_verify_paths()");
-            std::exit(EXIT_FAILURE);
-          }
-          break;
-        case SessionType::LISTEN:
-          sock->bind(addr);
-          break;
-        default:
-          std::exit(EXIT_FAILURE);
-      }
-    } break;
+    case SessionProtocol::QUIC: 
     case SessionProtocol::TCP:
     case SessionProtocol::TLS: {
-      Network::TCPSocket* sock = new Network::TCPSocket();
+      Network::TCPSocket* sock = new Network::TCPSocket(addr.family);
       sock_ = sock;
-      sock->init(addr.family);
       switch (type) {
         case SessionType::CONNECT:
           sock->connect(addr);
@@ -56,12 +31,6 @@ Session::Session(gsl::not_null<Network::IOCP*> iocp, utils::ThreadPool* tp,
     default:
       std::exit(EXIT_FAILURE);
   }
-
-  ssl_ = ::SSL_new(ssl_ctx_);
-  if (ssl_ == nullptr) {
-    spdlog::critical("SSL_new()");
-    std::exit(EXIT_FAILURE);
-  }
 }
 
 Session::~Session() {

impl/socket/address.cpp

@@ -4,50 +4,6 @@
 
 namespace Network {
 
-//void Address::set(int type, gsl::czstring presentationAddr,
-//                  std::uint16_t port) {
-//  zeroFill();
-//  setType(type);
-//
-//  if (type == AF_INET) {
-//    ::inet_pton(AF_INET, presentationAddr, &addr_in.sin_addr);
-//    addr_in.sin_port = htons(port);
-//  } else if (type == AF_INET6) {
-//    ::inet_pton(AF_INET6, presentationAddr, &addr_in6.sin6_addr);
-//    addr_in6.sin6_port = htons(port);
-//  }
-//
-//  BIO_ADDRINFO* res;
-//  if (!BIO_lookup_ex(presentationAddr, std::to_string(port).c_str(),
-//                     BIO_LOOKUP_CLIENT, type, SOCK_DGRAM, 0, &res)) {
-//    ::BIO_ADDRINFO_free(res);
-//    throw std::runtime_error("can't resolve address");
-//  }
-//
-//  int sock = -1;
-//  for (const BIO_ADDRINFO* ai = res; ai != nullptr;
-//       ai = ::BIO_ADDRINFO_next(ai)) {
-//    sock = ::BIO_socket(BIO_ADDRINFO_family(ai), type, 0, 0);
-//    if (sock == -1)
-//      continue;
-//    else {
-//      auto bio_addr = ::BIO_ADDRINFO_address(ai);
-//      BIO_ADDR_rawaddress(bio_addr, &addr, (unsigned long long*)&length);
-//      bio_addr_info = ::BIO_ADDR_dup(bio_addr);
-//
-//      break;
-//    }
-//  }
-//
-//  if (sock != -1)
-//    ::close(sock);
-//
-//  ::BIO_ADDRINFO_free(res);
-//
-//  addr_in.sin_family = type;
-//  addr_in.sin_port = htons(port);
-//}
-
 Address::Address() { zeroFill(); }
 
 Address::Address(int type, gsl::czstring presentationAddr, std::uint16_t port) {
@@ -58,19 +14,18 @@ void Address::zeroFill() { memset(&addr_in6, 0, sizeof(addr_in6)); }
 
 void Address::set(int type, gsl::czstring presentationAddr,
                   std::uint16_t port) {
-  zeroFill();
+  setType(type);
 
   if (type == AF_INET) {
     addr_in.sin_family = AF_INET;
     ::inet_pton(AF_INET, presentationAddr, &addr_in.sin_addr);
     addr_in.sin_port = htons(port);
-    length = sizeof(sockaddr_in);
   } else if (type == AF_INET6) {
     addr_in6.sin6_family = AF_INET6;
     ::inet_pton(AF_INET6, presentationAddr, &addr_in6.sin6_addr);
     addr_in6.sin6_port = htons(port);
-    length = sizeof(sockaddr_in6);
   }
+  family = type;
 }
 
 void Address::setType(int type) {
@@ -87,12 +42,12 @@ Address::operator std::string() {
 
   if (!port) return std::string();
 
-  if (length == sizeof(addr_in)) {
+  if (family == AF_INET) {
     char addrStr[INET_ADDRSTRLEN];
     ::inet_ntop(AF_INET, &addr_in.sin_addr, addrStr, sizeof(addrStr));
 
     return std::format("{}:{}", addrStr, port.value());
-  } else if (length == sizeof(addr_in6)) {
+  } else if (family == AF_INET6) {
     char addrStr[INET6_ADDRSTRLEN];
     ::inet_ntop(AF_INET6, &addr_in6.sin6_addr, addrStr, sizeof(addrStr));
 

impl/socket/iocp.cpp

@@ -4,7 +4,7 @@
 
 namespace Network {
 
-IOCP::IOCP() {
+IOCP::IOCP() : IOCPThread_(nullptr), proto_(SessionProtocol::TCP) {
   gen_ = std::mt19937(rd_());
   jitterDist_ = std::uniform_int_distribution<int>(-10, 10);
 }
@@ -40,81 +40,126 @@ void IOCP::destruct() {
 #endif
 }
 
-void IOCP::registerSocket(IOCPPASSINDATA* data) {
+void IOCP::registerSocket(std::shared_ptr<Socket> sock) {
 #ifdef _WIN32
-  HANDLE returnData = ::CreateIoCompletionPort(
-      (HANDLE)data->socket->sock, completionPort_, data->socket->sock, 0);
+  HANDLE returnData = ::CreateIoCompletionPort((HANDLE)sock->sock,
+                                               completionPort_, sock->sock, 0);
   if (returnData == 0) completionPort_ = returnData;
-
-  IOCPPASSINDATA* recv_data = new IOCPPASSINDATA(data->bufsize);
-  recv_data->event = IOCPEVENT::READ;
-  recv_data->socket = data->socket;
-  DWORD recvbytes = 0, flags = 0;
-  int result = ::WSARecv(recv_data->socket->sock, &recv_data->wsabuf, 1,
-                         &recvbytes, &flags, &recv_data->overlapped, NULL);
-  if (result == SOCKET_ERROR) {
-    int err = ::WSAGetLastError();
-    if (err != WSA_IO_PENDING) {
-      spdlog::error("WSARecv failed: {}", err);
-      // 반드시 여기서 리턴하거나 처리해야 합니다.
-    }
-  }
-
 #endif
 }
 
-int IOCP::recv(IOCPPASSINDATA* data) { //읽은 바이트수가 무조건 100임? 왜..?
-  SOCKET sock = data->socket->sock;
-  std::lock_guard lock(*GetRecvQueueMutex_(sock));
-  auto queue = GetRecvQueue_(sock);
+std::future<std::vector<char>> IOCP::recvFull(std::shared_ptr<Socket> sock,
+                                              std::uint32_t bufsize) {
+  auto promise = std::make_shared<std::promise<std::vector<char>>>();
+  auto future = promise->get_future();
 
-  std::uint32_t left_data = data->wsabuf.len;
-  std::uint32_t copied = 0;
+  auto buffer = std::make_shared<std::vector<char>>();
+  buffer->reserve(bufsize);
 
-  while (!queue->empty() && left_data != 0) {
-    auto front = queue->front();
-    queue->pop_front();
+  std::function<void(std::uint32_t)> recvChunk;
+  recvChunk = [=](std::uint32_t remaining) mutable {
+    this->recv(sock, remaining,
+               [=](utils::ThreadPool* th, IOCPPASSINDATA* data) {
+                 buffer->insert(buffer->end(), data->wsabuf.buf,
+                                data->wsabuf.buf + data->transferredbytes);
 
-    std::uint32_t offset = front.second;
-    std::uint32_t available = front.first.size() - offset;
-    std::uint32_t to_copy = (left_data < available) ? left_data : available;
+                 std::uint32_t still_left =
+                     bufsize - static_cast<std::uint32_t>(buffer->size());
+                 if (still_left > 0) {
+                   recvChunk(still_left);
+                 } else {
+                   promise->set_value(std::move(*buffer));
+                 }
 
-    ::memcpy(data->wsabuf.buf + copied, front.first.data() + offset, to_copy);
-    copied += to_copy;
-    left_data -= to_copy;
-    offset += to_copy;
+                 return std::list<char>();
+               });
+  };
 
-    if (offset < front.first.size()) {
-      front.second = offset;
-      queue->push_front(front);
-      break;
+  recvChunk(bufsize);
+
+  return future;
+}
+
+std::list<char> DEFAULT_RECVALL_CALLBACK(utils::ThreadPool* th,
+                                         IOCPPASSINDATA* data) {
+  std::list<char> return_value;
+  return_value.insert(return_value.end(), data->wsabuf.buf,
+                      data->wsabuf.buf + data->transferredbytes);
+
+  if (data->transferredbytes < data->wsabuf.len) {
+    auto future = data->IOCPInstance->recv(
+        data->socket, data->wsabuf.len - data->transferredbytes,
+        DEFAULT_RECVALL_CALLBACK);
+    auto result = future.get();
+    return_value.insert(return_value.end(), result.begin(), result.end());
+  }
+
+  return return_value;
+}
+
+std::future<std::list<char>> IOCP::recv(
+    std::shared_ptr<Socket> sock, std::uint32_t bufsize,
+    std::function<std::list<char>(utils::ThreadPool*, IOCPPASSINDATA*)>
+        callback) {
+  std::lock_guard lock(*GetRecvQueueMutex(sock->sock));
+  auto queue = GetRecvQueue(sock->sock);
+
+  Network::IOCPPASSINDATA* data;
+  std::packaged_task<std::list<char>(utils::ThreadPool*, IOCPPASSINDATA*)> task;
+  std::future<std::list<char>> future;
+  if (callback != nullptr) {
+    task = std::packaged_task<std::list<char>(utils::ThreadPool*,
+                                              IOCPPASSINDATA*)>(callback);
+    future = task.get_future();
+    data = new Network::IOCPPASSINDATA(sock, bufsize, this, std::move(task));
+  } else {
+    data = new Network::IOCPPASSINDATA(sock, bufsize, this);
+  }
+
+  int result = SOCKET_ERROR;
+  DWORD recvbytes = 0, flags = 0;
+  result = ::WSARecv(sock->sock, &data->wsabuf, 1, &recvbytes, &flags,
+                     &data->overlapped, NULL);
+  if (result == SOCKET_ERROR) {
+    int err = ::WSAGetLastError();
+    if (err != WSA_IO_PENDING) {
+      auto err_msg = std::format("WSARecv failed: {}", err);
+      throw std::runtime_error(err_msg);
     }
   }
 
-  return copied;
+  return future;
 }
 
-int IOCP::send(SOCKET sock, std::vector<IOCPPASSINDATA*>* data) {
-  auto lk = GetSendQueueMutex_(sock);
-  auto queue = GetSendQueue_(sock);
+int IOCP::send(std::shared_ptr<Socket> sock, std::vector<char>& data) {
+  auto lk = GetSendQueueMutex(sock->sock);
+  auto queue = GetSendQueue(sock->sock);
   std::lock_guard lock(*lk);
-  for (auto& it : *data) {
-    it->event = IOCPEVENT::WRITE;
-    queue->push_back(it);
-  }
+
+  Network::IOCPPASSINDATA* packet = new Network::IOCPPASSINDATA(sock, data.size(), this);
+  packet->event = IOCPEVENT::WRITE;
+  ::memcpy(packet->wsabuf.buf, data.data(), data.size());
+  packet->wsabuf.len = data.size();
+  queue->push_back(packet);
 
   IOCPThread_->enqueueJob(
-      [this, sock](utils::ThreadPool* th, std::uint8_t __) {
+      [this, sock = sock->sock](utils::ThreadPool* th, std::uint8_t __) {
         packet_sender_(sock);
       },
       0);
   return 0;
 }
 
-int IOCP::GetRecvedPacketCount(SOCKET sock) {
+int IOCP::GetRecvedBytes(SOCKET sock) {
+  auto queue = GetRecvQueue(sock);
   std::lock_guard lock(socket_mod_mutex_);
-  auto queue = GetRecvQueue_(sock);
-  return queue->size();
+
+  int bytes = 0;
+  for (auto it : *queue) {
+    bytes += it.first.size() - it.second;
+  }
+
+  return bytes;
 }
 
 void IOCP::iocpWatcher_(utils::ThreadPool* IOCPThread) {
@@ -137,48 +182,34 @@ void IOCP::iocpWatcher_(utils::ThreadPool* IOCPThread) {
     data->event = IOCPEVENT::QUIT;
     spdlog::debug("Disconnected. [{}]",
                   (std::string)(data->socket->remoteAddr));
+    auto task = [this, IOCPThread, data = std::move(data)](
+                    utils::ThreadPool* th, std::uint8_t __) {
+      if (data->callback.valid()) {
+        data->callback(th, data);
+      }
+      data->socket->destruct();
       delete data;
+    };
+    IOCPThread->enqueueJob(task, 0);
+    IOCPThread->enqueueJob(
+        [this](utils::ThreadPool* th, std::uint8_t __) { iocpWatcher_(th); },
+        0);
+    return;
   } else {
     data->transferredbytes = cbTransfrred;
   }
 
-  std::vector<char> buf(16384);  // SSL_read최대 반환 크기
-  int red_data = 0;
-  std::lock_guard lock(*GetRecvQueueMutex_(sock));
-  auto queue_list = GetRecvQueue_(data->socket->sock);
-  if (data->event == IOCPEVENT::READ) {
-    if (proto_ == SessionProtocol::TLS || proto_ == SessionProtocol::QUIC) {
-      ::BIO_write(::SSL_get_rbio(data->ssl.get()), data->wsabuf.buf,
-                  cbTransfrred);
-
-      while ((red_data = ::SSL_read(data->ssl.get(), buf.data(), buf.size())) >
-             0) {
-        queue_list->emplace_back(std::make_pair(
-            std::vector<char>(buf.begin(), buf.begin() + red_data), 0));
-      }
-    } else {
-      ::memcpy(buf.data(), data->wsabuf.buf, data->transferredbytes);
-      queue_list->emplace_back(std::make_pair(
-          std::vector<char>(buf.begin(), buf.begin() + data->transferredbytes),
-          0));
-    }
-    DWORD recvbytes = 0, flags = 0;
-
-    IOCPPASSINDATA* recv_data = new IOCPPASSINDATA(data->bufsize);
-    recv_data->event = IOCPEVENT::READ;
-    recv_data->socket = data->socket;
-
+  auto task = [this, IOCPThread, data = std::move(data)](utils::ThreadPool* th,
+                                                         std::uint8_t __) {
+    if (data->callback.valid()) data->callback(th, data);
     delete data;
-    ::WSARecv(recv_data->socket->sock, &recv_data->wsabuf, 1, &recvbytes,
-              &flags, &recv_data->overlapped, NULL);
-  } else {  // WRITE 시, 무시한다.
-    delete data;
-  }
+  };
+  IOCPThread->enqueueJob(task, 0);
   IOCPThread->enqueueJob(
       [this](utils::ThreadPool* th, std::uint8_t __) { iocpWatcher_(th); }, 0);
 }
 
-std::shared_ptr<std::list<IOCPPASSINDATA*>> IOCP::GetSendQueue_(SOCKET sock) {
+std::shared_ptr<std::list<IOCPPASSINDATA*>> IOCP::GetSendQueue(SOCKET sock) {
   std::lock_guard lock(socket_mod_mutex_);
   if (send_queue_.find(sock) == send_queue_.end()) {
     send_queue_[sock] = std::make_shared<std::list<IOCPPASSINDATA*>>(
@@ -188,7 +219,7 @@ std::shared_ptr<std::list<IOCPPASSINDATA*>> IOCP::GetSendQueue_(SOCKET sock) {
 }
 
 std::shared_ptr<std::list<std::pair<std::vector<char>, std::uint32_t>>>
-IOCP::GetRecvQueue_(SOCKET sock) {
+IOCP::GetRecvQueue(SOCKET sock) {
   std::lock_guard lock(socket_mod_mutex_);
   if (recv_queue_.find(sock) == recv_queue_.end()) {
     recv_queue_[sock] = std::make_shared<
@@ -198,7 +229,7 @@ IOCP::GetRecvQueue_(SOCKET sock) {
   return recv_queue_[sock];
 }
 
-std::shared_ptr<std::mutex> IOCP::GetSendQueueMutex_(SOCKET sock) {
+std::shared_ptr<std::mutex> IOCP::GetSendQueueMutex(SOCKET sock) {
   std::lock_guard lock(socket_mod_mutex_);
   if (send_queue_mutex_.find(sock) == send_queue_mutex_.end()) {
     send_queue_mutex_[sock] = std::make_shared<std::mutex>();
@@ -206,7 +237,7 @@ std::shared_ptr<std::mutex> IOCP::GetSendQueueMutex_(SOCKET sock) {
   return send_queue_mutex_[sock];
 }
 
-std::shared_ptr<std::mutex> IOCP::GetRecvQueueMutex_(SOCKET sock) {
+std::shared_ptr<std::mutex> IOCP::GetRecvQueueMutex(SOCKET sock) {
   std::lock_guard lock(socket_mod_mutex_);
   if (recv_queue_mutex_.find(sock) == recv_queue_mutex_.end()) {
     recv_queue_mutex_[sock] = std::make_shared<std::mutex>();
@@ -215,8 +246,8 @@ std::shared_ptr<std::mutex> IOCP::GetRecvQueueMutex_(SOCKET sock) {
 }
 
 void IOCP::packet_sender_(SOCKET sock) {
-  auto queue = GetSendQueue_(sock);
-  std::unique_lock lock(*GetSendQueueMutex_(sock));
+  auto queue = GetSendQueue(sock);
+  std::unique_lock lock(*GetSendQueueMutex(sock));
 
   std::vector<char> buf(16384);
   WSABUF wsabuf;
@@ -229,33 +260,11 @@ void IOCP::packet_sender_(SOCKET sock) {
 
     int data_len = 0;
 
-    if (proto_ == SessionProtocol::TLS || proto_ == SessionProtocol::QUIC) {
-      int ret = ::SSL_write(front->ssl.get(), front->wsabuf.buf, front->wsabuf.len);
-      if (ret <= 0) {
-        int err = ::SSL_get_error(front->ssl.get(), ret);
-        if (err == SSL_ERROR_WANT_READ || err == SSL_ERROR_WANT_WRITE) {
-          queue->push_front(front);
-          break;
-        }
-        std::unique_lock lk(socket_mod_mutex_);
-        send_queue_.erase(sock);
-        break;
-      }
-
-      while ((data_len = ::BIO_read(::SSL_get_wbio(front->ssl.get()), buf.data(), buf.size())) > 0) {
-        wsabuf.buf = buf.data();
-        wsabuf.len = data_len;
-
-        ::WSASend(sock, &wsabuf, 1, &sendbytes, 0, nullptr, nullptr);
-      }
-
-    } else {
     data_len = front->wsabuf.len;
     wsabuf.buf = front->wsabuf.buf;
     wsabuf.len = data_len;
     ::WSASend(sock, &wsabuf, 1, &sendbytes, 0, nullptr, nullptr);
   }
 }
-}
 
 }  // namespace Network

impl/socket/socket.cpp

@@ -2,6 +2,10 @@
 
 namespace Network {
 
+Socket::Socket() {
+  init(AF_INET, SOCK_STREAM, 0);
+}
+
 Socket::Socket(int domain, int type, int protocol) {
   init(domain, type, protocol);
 }
@@ -12,6 +16,7 @@ int Socket::init(int domain, int type, int protocol) {
   this->domain = domain;
 
   sock = ::socket(domain, type, protocol);
+  // sock = ::WSASocket(domain, type, protocol, NULL, 0, WSA_FLAG_OVERLAPPED);
   if (sock == INVALID_SOCKET) spdlog::critical("socket()");
 
   valid_ = true;
@@ -27,6 +32,7 @@ void Socket::destruct() {
   ::close(sock);
 #endif
   valid_ = false;
+  sock = 0;
 }
 
 Socket::operator SOCKET() {
@@ -40,7 +46,7 @@ Socket::operator SOCKET() {
 
 void Socket::set(const SOCKET __sock, int __domain) {
   if (__sock == INVALID_SOCKET) {
-    spdlog::critical("socket()");
+    spdlog::error("set failed errno:{} {}", errno, strerror(errno));
     std::exit(EXIT_FAILURE);
   }
 
@@ -59,12 +65,35 @@ int Socket::bind(Address __addr) {
   bindAddr = __addr;
   int retVal = ::bind(sock, &__addr.addr, __addr.length);
   if (retVal == INVALID_SOCKET) {
+    int err = WSAGetLastError();
+    spdlog::error("bind() failed: WSA error {} (0x{:X})", err, err);
     spdlog::critical("bind()");
     std::exit(EXIT_FAILURE);
   }
   return retVal;
 }
 
+int Socket::connect(Address& serveraddr) {
+  std::string addr_string = serveraddr;
+  int retVal = -1;
+  if (serveraddr.family == AF_INET) {
+    retVal = ::connect(sock, (const sockaddr*)&serveraddr.addr_in,
+                       serveraddr.length);
+  } else if (serveraddr.family == AF_INET6) {
+    retVal = ::connect(sock, (const sockaddr*)&serveraddr.addr_in6,
+                       serveraddr.length);
+  }
+  memcpy(&remoteAddr, &serveraddr, sizeof(Address));
+  if (retVal == INVALID_SOCKET) {
+#ifdef _WIN32
+    int err = WSAGetLastError();
+    spdlog::error("connect() failed: WSA error {} (0x{:X})", err, err);
+#endif
+    spdlog::error("connect()");
+  }
+  return retVal;
+}
+
 int Socket::recvfrom(void* __restrict __buf, size_t __n, int __flags,
                         struct Address& __addr) {
   std::lock_guard<std::mutex> lock(readMutex);
@@ -88,12 +117,6 @@ Socket::Socket(const Socket& other_) {
   valid_ = false;
 }
 
-Socket::Socket(Socket&& other_) noexcept {
-  other_.valid_ = false;
-  memcpy(this, &other_, sizeof(Socket));
-  valid_ = true;
-}
-
 Socket& Socket::operator=(const Socket& other_) {
   memcpy(this, &other_, sizeof(Socket));
   valid_ = false;
@@ -101,6 +124,12 @@ Socket& Socket::operator=(const Socket& other_) {
   return *this;
 }
 
+Socket::Socket(Socket&& other_) noexcept {
+  other_.valid_ = false;
+  memcpy(this, &other_, sizeof(Socket));
+  valid_ = true;
+}
+
 Socket& Socket::operator=(Socket&& other_) noexcept {
   other_.valid_ = false;
   memcpy(this, &other_, sizeof(Socket));

impl/socket/tcp_socket.cpp

@@ -2,6 +2,8 @@
 
 namespace Network {
 
+TCPSocket::TCPSocket(int domain) { init(domain); }
+
 int TCPSocket::init(int domain) { return init(domain, SOCK_STREAM, 0); }
 
 int TCPSocket::listen(int __n) {
@@ -10,30 +12,17 @@ int TCPSocket::listen(int __n) {
   return retVal;
 }
 
-void TCPSocket::accept(TCPSocket &newSock, Address &__addr) {
-  newSock.set(::accept(sock, &__addr.addr, &__addr.length), domain);
-  memcpy(&newSock.remoteAddr, &__addr, sizeof(Address));
-  if (newSock.sock == INVALID_SOCKET) spdlog::error("accept()");
+void TCPSocket::accept(std::shared_ptr<TCPSocket> &newSock,
+                                Address &__addr) {
+  SOCKET newsock = INVALID_SOCKET;
+  newsock = ::accept(sock, &__addr.addr, &__addr.length);
+  if (newsock == INVALID_SOCKET) {
+    spdlog::error("accept() errno:{} {}", errno, strerror(errno));
+    std::exit(EXIT_FAILURE);
   }
-
-int TCPSocket::connect(Address &serveraddr) {
-  std::string addr_string = serveraddr;
-  int retVal = -1;
-  if (serveraddr.family == AF_INET)
-    retVal = ::connect(sock, (const sockaddr *)&serveraddr.addr_in,
-                       serveraddr.length);
-  else
-    retVal = ::connect(sock, (const sockaddr *)&serveraddr.addr_in6,
-                       serveraddr.length);
-  memcpy(&remoteAddr, &serveraddr, sizeof(Address));
-  if (retVal == INVALID_SOCKET) {
-#ifdef _WIN32
-    int err = WSAGetLastError();
-    spdlog::error("connect() failed: WSA error {} (0x{:X})", err, err);
-#endif
-    spdlog::error("connect()");
-  }
-  return retVal;
+  newSock = std::make_shared<TCPSocket>();
+  newSock->set(newsock, domain);
+  newSock->remoteAddr = __addr;
 }
 
 int TCPSocket::recv(void *__restrict __buf, size_t __n, int __flags) {

impl/socket/udp_socket.cpp

@@ -4,4 +4,24 @@ namespace Network {
 
 int UDPSocket::init(int domain) { return init(domain, SOCK_DGRAM, 0); }
 
+int UDPSocket::connect(Address &serveraddr) {
+  std::string addr_string = serveraddr;
+  int retVal = -1;
+  if (serveraddr.family == AF_INET)
+    retVal = ::connect(sock, (const sockaddr *)&serveraddr.addr_in,
+                       serveraddr.length);
+  else
+    retVal = ::connect(sock, (const sockaddr *)&serveraddr.addr_in6,
+                       serveraddr.length);
+  memcpy(&remoteAddr, &serveraddr, sizeof(Address));
+  if (retVal == INVALID_SOCKET) {
+#ifdef _WIN32
+    int err = WSAGetLastError();
+    spdlog::error("connect() failed: WSA error {} (0x{:X})", err, err);
+#endif
+    spdlog::error("connect()");
+  }
+  return retVal;
+}
+
 }  // namespace Network

impl/utils/ConfigManager.cpp

@@ -0,0 +1,16 @@
+#include "Utils/ConfigManager.h"
+
+#include <json/json.h>
+
+#include <fstream>
+
+namespace utils {
+void ConfigManager::save(Config& config) {
+
+  std::ofstream configfile("config.json", std::ios::out);
+
+  configfile << config.configJsonRoot;
+
+  configfile.close();
+}
+}  // namespace utils

impl/utils/generate_id.cpp

@@ -9,13 +9,15 @@ static struct EpochInitializer {
   std::chrono::system_clock::time_point EPOCH;
 } epochInitializer;
 
-Snowflake GenerateID() {
+Snowflake GenerateID(std::uint8_t instance) {
   static std::mutex snowflakeGenerateMutex_;
 
   std::lock_guard<std::mutex> lock(snowflakeGenerateMutex_);
 
   std::size_t tid =
       std::hash<std::thread::id>{}(std::this_thread::get_id());
+  instance = instance << 3;
+  tid += instance;
 
   thread_local static int sequence = 0;
   Snowflake id = {};

impl/utils/utils.cpp

@@ -0,0 +1,11 @@
+#include "utils/utils.h"
+
+namespace utils {
+
+std::vector<char> CvtListToVector(std::list<char> data) {
+  std::vector<char> returnValue;
+  returnValue.insert(returnValue.end(), data.begin(), data.end());
+  return returnValue;
+}
+
+}

impl/vulkan_engine/asset/object/model.cpp

@@ -0,0 +1,117 @@
+#include "vulkan_engine/asset/object/model.h"
+
+#include "vulkan_engine/vulkan/graphics.h"
+
+namespace veng {
+
+Model::~Model() {
+  if (graphics_ == nullptr) return;
+
+  graphics_->DestroyTexture(material.texture_handle);
+  graphics_->DestroyBuffer(vertex_buffer);
+  graphics_->DestroyBuffer(index_buffer);
+}
+
+template <typename T>
+void Append(std::vector<char>& buffer, const T& value) {
+  const char* data = reinterpret_cast<const char*>(&value);
+  buffer.insert(buffer.end(), data, data + sizeof(T));
+}
+
+void Append(std::vector<char>& buffer, const std::string& value) {
+  size_t length = value.size();
+  Append(buffer, length);
+  buffer.insert(buffer.end(), value.begin(), value.end());
+}
+
+template <typename T>
+void Read(const std::vector<char>& buffer, size_t& offset, T& out) {
+  std::memcpy(&out, buffer.data() + offset, sizeof(T));
+  offset += sizeof(T);
+}
+
+void Read(const std::vector<char>& buffer, size_t& offset, std::string& out) {
+  size_t length = 0;
+  Read(buffer, offset, length);
+  out.assign(buffer.data() + offset, length);
+  offset += length;
+}
+
+std::vector<char> Model::Serialize() {
+  std::vector<char> buffer;
+
+  Append(buffer, ID);
+  Append(buffer, name);
+  Append(buffer, asset_name);
+
+  Append(buffer, position);
+  Append(buffer, linear_velocity);
+  Append(buffer, linear_acceleration);
+
+  Append(buffer, rotation);
+  Append(buffer, angular_velocity);
+  Append(buffer, angular_acceleration);
+
+  Append(buffer, scale);
+
+  Append(buffer, original_offset);
+
+  Append(buffer, OwnerID);
+
+  Append(buffer, radius);
+  Append(buffer, lifespan);
+
+  Append(buffer, visible);
+  Append(buffer, colision);
+
+  Append(buffer, lastUpdatedTime);
+
+  return buffer;
+}
+
+void Model::Deserialize(std::vector<char> data) {
+  size_t offset = 0;
+
+  Read(data, offset, ID);
+  Read(data, offset, name);
+  Read(data, offset, asset_name);
+
+  Read(data, offset, position);
+  Read(data, offset, linear_velocity);
+  Read(data, offset, linear_acceleration);
+
+  Read(data, offset, rotation);
+  Read(data, offset, angular_velocity);
+  Read(data, offset, angular_acceleration);
+
+  Read(data, offset, scale);
+
+  Read(data, offset, original_offset);
+
+  Read(data, offset, OwnerID);
+
+  Read(data, offset, radius);
+  Read(data, offset, lifespan);
+
+  Read(data, offset, visible);
+  Read(data, offset, colision);
+
+  Read(data, offset, lastUpdatedTime);
+}
+
+void veng::Model::Update(float dt) {
+  linear_velocity += linear_acceleration * dt;
+  position += linear_velocity * dt;
+
+  angular_velocity += angular_acceleration * dt;
+  if (glm::length(angular_velocity) > 1e-6f) {
+    rotation =
+        glm::normalize(glm::rotate(rotation, glm::length(angular_velocity * dt),
+                                   glm::normalize(angular_velocity)));
+  }
+
+  transform = glm::translate(glm::mat4(1.0f), position) *
+              glm::mat4_cast(rotation) * glm::scale(glm::mat4(1.0f), scale);
+}
+
+}  // namespace veng

impl/vulkan_engine/vulkan/buffers.cpp

@@ -170,7 +170,7 @@ void Graphics::RenderIndexedBuffer(BufferHandle vertex_buffer,
   vkCmdDrawIndexed(frames_[current_frame_].command_buffer, count, 1, 0, 0, 0);
   SetModelMatrix(glm::mat4(1.f));
 }
-void Graphics::RenderModel(Model* model) {
+void Graphics::RenderModel(std::shared_ptr<Model> model) {
   if (!model->visible) return;
   SetTexture(model->material.texture_handle);
   SetModelMatrix(model->transform);

impl/vulkan_engine/vulkan/engine.cpp

@@ -0,0 +1,360 @@
+#include "vulkan_engine/vulkan/engine.h"
+
+#include "precomp.h"
+#include "socket/packet.h"
+#include "utils/utils.h"
+
+#define TICKRATE 10
+constexpr double TICKDELAY = (1 / TICKRATE);
+
+namespace veng {
+
+void Engine::init() {
+  glm::ivec2 window_size_ = vulkan_graphics->window->GetFramebufferSize();
+  view = glm::lookAt(glm::vec3(0.f, 0.f, -5.f), glm::vec3(0.f, 0.f, 0.f),
+                     glm::vec3(0.f, -1.f, 0.f));
+  projection = glm::perspective(
+      glm::radians(103.f),
+      (std::float_t)window_size_.x / (std::float_t)window_size_.y, 0.1f,
+      1000.f);
+  vulkan_graphics->SetViewProjection(view, projection);
+
+  if (BeginPlay != nullptr) BeginPlay(*this);
+}
+
+void Engine::LoadModelAsset(std::string path, std::string name) {
+  model_assets_[name] = veng::Model(vulkan_graphics);
+  asset_loader_.setPath(path);
+  asset_loader_.loadModel(model_assets_[name]);
+
+  model_assets_[name].vertex_buffer =
+      vulkan_graphics->CreateVertexBuffer(model_assets_[name].vertices);
+  model_assets_[name].index_buffer =
+      vulkan_graphics->CreateIndexBuffer(model_assets_[name].indices);
+  model_assets_[name].material.texture_handle =
+      vulkan_graphics->CreateTexture(asset_loader_.readTexture());
+}
+
+const Model* Engine::GetStaticModel(std::string name) {
+  if (model_assets_.find(name) != model_assets_.end())
+    return &model_assets_[name];
+  return nullptr;
+}
+
+std::shared_ptr<Model> Engine::SpawnLifedModel(std::string asset_name,
+                                               std::string name,
+                                               std::float_t lifespan) {
+  if (asset_name == "") {
+    Model model_to_spawn(nullptr);
+    model_to_spawn.asset_name = "";
+    model_to_spawn.name = name;
+    model_to_spawn.visible = false;
+    model_to_spawn.lifespan = lifespan;
+    models_[name] = std::make_shared<Model>(model_to_spawn);
+    model_to_spawn.owner = models_[name];
+    return models_[name];
+  }
+
+  if (models_.find(name) == models_.end()) {
+    Model model_to_spawn(*GetStaticModel(asset_name));
+    model_to_spawn.asset_name = asset_name;
+    model_to_spawn.name = name;
+    model_to_spawn.lifespan = lifespan;
+    models_[name] = std::make_shared<Model>(model_to_spawn);
+    model_to_spawn.owner = models_[name];
+    return models_[name];
+  }
+
+  std::uint32_t i = 0;
+  for (i = 0; i < std::numeric_limits<std::uint32_t>::max();) {
+    if (models_.find(name + std::to_string(i)) == models_.end()) {
+      Model model_to_spawn(*GetStaticModel(asset_name));
+      model_to_spawn.asset_name = asset_name;
+      model_to_spawn.name = name + std::to_string(i);
+      model_to_spawn.lifespan = lifespan;
+
+      models_[name + std::to_string(i)] =
+          std::make_shared<Model>(model_to_spawn);
+      model_to_spawn.owner = models_[name + std::to_string(i)];
+      break;
+    }
+    i++;
+  }
+
+  if (i == std::numeric_limits<std::uint32_t>::max() - 1)
+    return nullptr;
+  else
+    return models_[name + std::to_string(i)];
+}
+
+std::shared_ptr<Model> Engine::GetSpawnedObject(std::string name) {
+  for (auto it = models_.begin(); it != models_.end();) {
+    if (it->first == name) return it->second;
+    ++it;
+  }
+
+  return nullptr;
+}
+
+void Engine::Update() {
+  glm::ivec2 framebuffer_size = vulkan_graphics->window->GetFramebufferSize();
+  if (framebuffer_size != window_size_ && framebuffer_size.x != 0 &&
+      framebuffer_size.y != 0) {
+    window_size_ = framebuffer_size;
+    auto grater = (framebuffer_size.x > framebuffer_size.y)
+                      ? framebuffer_size.x
+                      : framebuffer_size.y;
+    view = glm::lookAt(glm::vec3(0.f, 0.f, -5.f), glm::vec3(0.f, 0.f, 0.f),
+                       glm::vec3(0.f, -1.f, 0.f));
+    projection = glm::perspective(
+        glm::radians(103.f),
+        (std::float_t)framebuffer_size.x / (std::float_t)framebuffer_size.y,
+        0.1f, 1000.f);
+  }
+  vulkan_graphics->SetViewProjection(view, projection);
+
+  if (vulkan_graphics->BeginFrame()) {
+    std::double_t current_time = glfwGetTime();
+    std::float_t delta_time =
+        static_cast<std::float_t>(current_time - last_frame_time_);
+    last_frame_time_ = current_time;
+
+    if (Tick != nullptr) Tick(*this, delta_time);
+
+    for (auto it = models_.begin(); it != models_.end();) {
+      auto& model = it->second;
+
+      if (std::abs(model->lifespan + 1.f) <
+          std::numeric_limits<float>::epsilon()) {
+        ++it;
+        continue;
+      }
+
+      if (model->lifespan <= 0.f) {
+        it = models_.erase(it);
+        continue;
+      }
+
+      if (model->shouldBeDestroyed) {
+        it = models_.erase(it);
+        continue;
+      }
+
+      model->lifespan -= delta_time;
+      ++it;
+    }
+
+    for (auto& it : models_) {
+      it.second->Update(it.second->lastUpdatedTime + delta_time);
+      vulkan_graphics->RenderModel(it.second);
+    }
+
+    // Physics::invokeOnColisionEvent(thread_pool_, models_);
+
+    vulkan_graphics->EndFrame();
+  }
+}
+void Engine::NetUpdate(std::shared_ptr<Network::Socket> sock) {
+  NetworkUpload(sock);
+}
+
+void Engine::NetworkUpload(std::shared_ptr<Network::Socket> sock) {
+  static double last_all_updated;
+  auto current_time = glfwGetTime();
+  bool needs_all_update = false;
+  if (current_time - last_all_updated >= TICKDELAY) {
+    needs_all_update = true;
+    last_all_updated = glfwGetTime();
+  }
+
+  std::vector<char> data;
+  for (auto& it : models_) {
+    std::lock_guard lock(it.second->modding);
+    if (!it.second->networkReplicated && !needs_all_update) continue;
+    if (!it.second->needsUpdate && !needs_all_update) continue;
+
+    Packet::Header header;
+    header.opcode = Packet::Opcode::UPDATEMODEL;
+    header.timestamp = glfwGetTime();
+    std::vector<char> model = it.second->Serialize();
+    header.body_length = model.size();
+    std::vector<char> header_serialized = header.Serialize();
+
+    data.insert(data.end(), header_serialized.begin(), header_serialized.end());
+    data.insert(data.end(), model.begin(), model.end());
+    if (it.second->updateRedundantCount <= 1) {
+      it.second->needsUpdate = false;
+    } else {
+      it.second->updateRedundantCount--;
+    }
+    spdlog::debug("{} uploaded", it.second->name);
+  }
+  iocp_->send(sock, data);
+}
+
+float GetAlpha(double old_time, double new_time) {
+  return (glfwGetTime() - old_time) / (new_time - old_time) * 0.5;
+}
+
+void Interpolation(Packet::Header header, std::shared_ptr<veng::Model> local,
+                   std::shared_ptr<veng::Model> remote) {
+  constexpr float position_threshold = 5.0f;  // 위치 차이 임계값
+  constexpr float rotation_threshold = 0.5f;  // 회전 차이 임계값 (라디안 기준)
+
+  std::lock_guard lock(local->modding);
+  float alpha = GetAlpha(local->lastUpdatedTime, header.timestamp);
+
+  // 위치 보간 또는 강제 이동
+  if (glm::distance(local->position, remote->position) > position_threshold) {
+    local->position = remote->position;
+  } else {
+    local->position = glm::mix(local->position, remote->position, alpha);
+  }
+
+  // 선속도
+  if (glm::length(remote->linear_velocity - local->linear_velocity) >
+      position_threshold) {
+    local->linear_velocity = remote->linear_velocity;
+  } else {
+    local->linear_velocity =
+        glm::mix(local->linear_velocity, remote->linear_velocity, alpha);
+  }
+
+  local->linear_acceleration =
+      glm::mix(local->linear_acceleration, remote->linear_acceleration, alpha);
+
+  // 회전 보간 또는 강제 이동
+  if (glm::length(remote->rotation - local->rotation) > rotation_threshold) {
+    local->rotation = remote->rotation;
+  } else {
+    local->rotation = glm::mix(local->rotation, remote->rotation, alpha);
+  }
+
+  local->angular_velocity =
+      glm::mix(local->angular_velocity, remote->angular_velocity, alpha);
+
+  local->angular_acceleration = glm::mix(local->angular_acceleration,
+                                         remote->angular_acceleration, alpha);
+
+  // 스케일은 보간만 적용
+  local->scale = glm::mix(local->scale, remote->scale, alpha);
+
+  // 동기화 항목은 그대로 적용
+  local->original_offset = remote->original_offset;
+  local->radius = remote->radius;
+  local->lifespan = remote->lifespan;
+  local->visible = remote->visible;
+  local->colision = remote->colision;
+}
+
+
+//void Interpolation(Packet::Header header, std::shared_ptr<veng::Model> local,
+//                   std::shared_ptr<veng::Model> remote) {
+//  std::lock_guard lock(local->modding);
+//  local->position =
+//      glm::mix(local->position, remote->position,
+//               GetAlpha(local->lastUpdatedTime, header.timestamp));
+//  local->linear_velocity =
+//      glm::mix(local->linear_velocity, remote->linear_velocity,
+//               GetAlpha(local->lastUpdatedTime, header.timestamp));
+//  local->linear_acceleration =
+//      glm::mix(local->linear_acceleration, remote->linear_acceleration,
+//               GetAlpha(local->lastUpdatedTime, header.timestamp));
+//
+//  local->rotation =
+//      glm::mix(local->rotation, remote->rotation,
+//               GetAlpha(local->lastUpdatedTime, header.timestamp));
+//  local->angular_velocity =
+//      glm::mix(local->angular_velocity, remote->angular_velocity,
+//               GetAlpha(local->lastUpdatedTime, header.timestamp));
+//  local->angular_acceleration =
+//      glm::mix(local->angular_acceleration, remote->angular_acceleration,
+//               GetAlpha(local->lastUpdatedTime, header.timestamp));
+//
+//  local->scale = glm::mix(local->scale, remote->scale,
+//                          GetAlpha(local->lastUpdatedTime, header.timestamp));
+//
+//  local->original_offset = remote->original_offset;
+//  local->radius = remote->radius;
+//  local->lifespan = remote->lifespan;
+//
+//  local->visible = remote->visible;
+//  local->colision = remote->colision;
+//}
+
+void Engine::ResponseToServerAndRefresh(std::shared_ptr<Network::Socket> sock) {
+  if (sock->sock == 0) return;
+
+  auto result = iocp_->recv(sock, 14);
+  auto recv_data = utils::CvtListToVector(result.get()); // 여기서 막혀서 프로그램이 리턴을 못하는 문제가 있음..
+
+  Packet::Header header;
+  header.Deserialize(recv_data);
+
+  result = iocp_->recv(sock, header.body_length);
+  recv_data = utils::CvtListToVector(result.get());
+
+  switch (header.opcode) {
+    case Packet::Opcode::UPDATEMODEL: {
+      std::shared_ptr<veng::Model> model = std::make_shared<veng::Model>();
+      model->Deserialize(recv_data);
+
+      bool found = false;
+      for (auto& it : models_) {
+        if (it.second->ID == model->ID) {
+          Interpolation(header, it.second, model);
+          // spdlog::debug("model updated: [{}:{}]", model->name, model->ID.snowflake);
+          found = true;
+          break;
+        }
+      }
+
+      if (!found) {
+        auto spawnedModel =
+            SpawnLifedModel(model->asset_name, model->name, model->lifespan);
+        std::lock_guard lock(spawnedModel->modding);
+        spawnedModel->ID = model->ID;
+        spawnedModel->position = model->position;
+        spawnedModel->linear_velocity = model->linear_velocity;
+        spawnedModel->linear_acceleration = model->linear_acceleration;
+
+        spawnedModel->rotation = model->rotation;
+        spawnedModel->angular_velocity = model->angular_velocity;
+        spawnedModel->angular_acceleration = model->angular_acceleration;
+
+        spawnedModel->scale = model->scale;
+        spawnedModel->transform = model->transform;
+
+        spawnedModel->original_offset = model->original_offset;
+        spawnedModel->radius = model->radius;
+        spawnedModel->lifespan = model->lifespan;
+
+        spawnedModel->visible = model->visible;
+        spawnedModel->colision = model->colision;
+        spawnedModel->networkReplicated = false;
+        spdlog::info("model spawned: {}", model->ID.snowflake);
+      }
+    } break;
+    case Packet::Opcode::DESPAWNMODEL: {
+      std::shared_ptr<veng::Model> model = std::make_shared<veng::Model>();
+      model->Deserialize(recv_data);
+
+      for (auto it = models_.begin(); it != models_.end();) {
+        if (it->second->ID == model->ID) {
+          models_.erase(it);
+          break;
+        }
+        ++it;
+      }
+    } break;
+    default:
+      spdlog::error("unknown data type");
+  }
+  thread_pool_->enqueueJob(
+      [this, sock](utils::ThreadPool* tp, std::uint32_t __) {
+        ResponseToServerAndRefresh(sock);
+      },
+      0);
+}
+
+}  // namespace veng

impl/vulkan_engine/vulkan/physics.cpp

@@ -5,35 +5,64 @@
 
 namespace veng {
 void Physics::invokeOnColisionEvent(
-    gsl::not_null<utils::ThreadPool*> thread_pool, gsl::span<Model*> models) {
+    gsl::not_null<utils::ThreadPool*> thread_pool,
+    std::unordered_map<std::string, std::shared_ptr<Model>>& models) {
   constexpr std::float_t EPSILON = std::numeric_limits<std::float_t>::epsilon();
 
-  for (int first = 0; first < models.size(); first++) {
-    if (!models[first]->colision) continue;
-    for (int second = first + 1; second < models.size(); second++) {
-      if (!models[second]->colision) continue;
+  for (std::unordered_map<std::string, std::shared_ptr<Model>>::iterator
+           iter_A = models.begin();
+       iter_A != models.end(); iter_A++) {
+    for (auto iter_B = std::next(iter_A); iter_B != models.end(); iter_B++) {
+      auto model_A = iter_A->second;
+      std::lock_guard<std::mutex> Alock(model_A->modding);
+      auto model_B = iter_B->second;
+      std::lock_guard<std::mutex> Block(model_B->modding);
+      if (!model_A->colision || !model_B->colision) continue;
       std::float_t distance =
-          glm::distance(models[first]->position, models[second]->position);
-      std::float_t model1_radius =
-          models[first]->radius * models[first]->scale.x;
-      std::float_t model2_radius =
-          models[second]->radius * models[second]->scale.x;
-      if (distance <= model1_radius + model2_radius) {
-        if (models[first]->OnColision != nullptr)
-          thread_pool->enqueueJob(
-              [OnColision = models[first]->OnColision](
-                  utils::ThreadPool* thread_pool, Model* self, Model* other) {
-                OnColision(self, other);
-              },
-              models[first], models[second]);
-        if (models[second]->OnColision != nullptr)
-          thread_pool->enqueueJob(
-              [OnColision = models[second]->OnColision](
-                  utils::ThreadPool* thread_pool, Model* self, Model* other) {
-                OnColision(self, other);
-              },
-              models[second], models[first]);
-        break;
+          glm::distance(model_A->position, model_B->position);
+      std::float_t modelA_radius = model_A->radius * model_A->scale.x;
+      std::float_t modelB_radius = model_B->radius * model_B->scale.x;
+      if (distance <= modelA_radius + modelB_radius) {
+        model_A = iter_A->second;
+        model_B = iter_B->second;
+        if (model_A->OnColision)
+          thread_pool->enqueueJob(model_A->OnColision, model_A, model_B);
+        model_A = iter_A->second;
+        model_B = iter_B->second;
+        if (model_B->OnColision)
+          thread_pool->enqueueJob(model_B->OnColision, model_A, model_B);
+      }
+    }
+  }
+}
+
+void Physics::invokeOnColisionEvent(
+    gsl::not_null<utils::ThreadPool*> thread_pool,
+    std::unordered_map<utils::Snowflake, std::shared_ptr<Model>>& models) {
+  constexpr std::float_t EPSILON = std::numeric_limits<std::float_t>::epsilon();
+
+  for (std::unordered_map<utils::Snowflake, std::shared_ptr<Model>>::iterator
+           iter_A = models.begin();
+       iter_A != models.end(); iter_A++) {
+    for (auto iter_B = std::next(iter_A); iter_B != models.end(); iter_B++) {
+      auto model_A = iter_A->second;
+      std::lock_guard<std::mutex> Alock(model_A->modding);
+      auto model_B = iter_B->second;
+      std::lock_guard<std::mutex> Block(model_B->modding);
+      if (!model_A->colision || !model_B->colision) continue;
+      std::float_t distance =
+          glm::distance(model_A->position, model_B->position);
+      std::float_t modelA_radius = model_A->radius * model_A->scale.x;
+      std::float_t modelB_radius = model_B->radius * model_B->scale.x;
+      if (distance <= modelA_radius + modelB_radius) {
+        model_A = iter_A->second;
+        model_B = iter_B->second;
+        if (model_A->OnColision)
+          thread_pool->enqueueJob(model_A->OnColision, model_A, model_B);
+        model_A = iter_A->second;
+        model_B = iter_B->second;
+        if (model_B->OnColision)
+          thread_pool->enqueueJob(model_B->OnColision, model_A, model_B);
       }
     }
   }
@@ -42,7 +71,7 @@ void Physics::invokeOnColisionEvent(
 bool Physics::RayTrace(const glm::vec3& rayOrigin, const glm::vec3& rayDir,
                        const glm::vec3& v0, const glm::vec3& v1,
                        const glm::vec3& v2, std::float_t& outDistance) {
-  const std::float_t EPSILON = std::numeric_limits<std::float_t>::epsilon();
+  constexpr std::float_t EPSILON = std::numeric_limits<std::float_t>::epsilon();
 
   // 삼각형 엣지와 노멀 계산
   glm::vec3 edge1 = v1 - v0;

include/session/session.h

@@ -1,9 +1,5 @@
 #pragma once
 
-#include <openssl/bio.h>
-#include <openssl/err.h>
-#include <openssl/ssl.h>
-
 #include "socket/iocp.h"
 #include "utils/thread_pool.h"
 
@@ -23,8 +19,5 @@ class Session {
 
   SessionProtocol proto_;
   Network::Socket* sock_ = nullptr;
-
-  SSL_CTX* ssl_ctx_ = nullptr;
-  SSL* ssl_ = nullptr;
 };
 }  // namespace Network

include/socket/address.h

@@ -1,9 +1,5 @@
 #pragma once
 
-#include <openssl/bio.h>
-#include <openssl/err.h>
-#include <openssl/ssl.h>
-
 namespace Network {
 
 struct Address {
@@ -14,6 +10,9 @@ struct Address {
   void set(int type, gsl::czstring presentationAddr, std::uint16_t port);
   void setType(int type);
 
+  Address(const Address&) = default;
+  Address& operator=(const Address&) = default;
+
   operator std::string();
   std::uint16_t getPort() const;
 
@@ -24,8 +23,6 @@ struct Address {
     struct sockaddr_in6 addr_in6;
   };
   socklen_t length;
-
-  BIO_ADDR* bio_addr_info;
 };
 
 }  // namespace Chattr

include/socket/iocp.h

@@ -1,7 +1,4 @@
 #pragma once
-#include <openssl/bio.h>
-#include <openssl/err.h>
-#include <openssl/ssl.h>
 
 #include <functional>
 #include <queue>
@@ -27,91 +24,10 @@ typedef struct __WSABUF {
 
 namespace Network {
 
-class IOCP;
+struct IOCPPASSINDATA;
 
-enum class IOCPEVENT { QUIT, READ, WRITE };
-
-struct IOCPPASSINDATA {
-  OVERLAPPED overlapped;
-  IOCPEVENT event;
-  std::shared_ptr<Socket> socket;
-  std::shared_ptr<SSL> ssl;
-  std::uint32_t transferredbytes;
-  WSABUF wsabuf;
-  std::uint32_t bufsize;
-  IOCP* IOCPInstance;
-#ifdef __linux__
-  std::shared_ptr<std::queue<IOCPPASSINDATA*>> sendQueue;
-#endif
-
-  IOCPPASSINDATA(std::uint32_t bufsize) {
-    std::memset(&overlapped, 0, sizeof(overlapped));
-    event = IOCPEVENT::QUIT;
-    socket = nullptr;
-    ssl = nullptr;
-    transferredbytes = 0;
-    this->bufsize = bufsize;
-    IOCPInstance = nullptr;
-
-    wsabuf.buf = new char[bufsize];
-    wsabuf.len = bufsize;
-  }
-  IOCPPASSINDATA(std::uint32_t bufsize, SSL_CTX* ctx) {
-    std::memset(&overlapped, 0, sizeof(overlapped));
-    event = IOCPEVENT::QUIT;
-    socket = nullptr;
-    ssl = std::shared_ptr<SSL>(::SSL_new(ctx), ::SSL_free);
-    ::SSL_set_bio(ssl.get(), ::BIO_new(::BIO_s_mem()),
-                  ::BIO_new(::BIO_s_mem()));
-    transferredbytes = 0;
-    this->bufsize = bufsize;
-    IOCPInstance = nullptr;
-
-    wsabuf.buf = new char[bufsize];
-    wsabuf.len = bufsize;
-  }
-
-  IOCPPASSINDATA(const IOCPPASSINDATA& other) {
-    if (this != &other) {
-      std::memset(&overlapped, 0, sizeof(overlapped));
-      event = other.event;
-      socket = other.socket;
-      transferredbytes = other.transferredbytes;
-      bufsize = other.bufsize;
-      IOCPInstance = other.IOCPInstance;
-#ifdef __linux__
-      sendQueue = other.sendQueue;
-#endif
-      wsabuf.buf = new char[other.bufsize];
-      wsabuf.len = other.bufsize;
-      std::memcpy(wsabuf.buf, other.wsabuf.buf, other.wsabuf.len);
-    }
-  }
-
-  ~IOCPPASSINDATA() {
-    if (wsabuf.buf != nullptr) delete[] wsabuf.buf;
-    wsabuf.buf = nullptr;
-  }
-
-  IOCPPASSINDATA& operator=(const IOCPPASSINDATA& other) {
-    if (this != &other) {
-      std::memset(&overlapped, 0, sizeof(overlapped));
-      event = other.event;
-      socket = other.socket;
-      transferredbytes = other.transferredbytes;
-      bufsize = other.bufsize;
-      IOCPInstance = other.IOCPInstance;
-#ifdef __linux__
-      sendQueue = other.sendQueue;
-#endif
-      if (wsabuf.buf != nullptr) delete[] wsabuf.buf;
-      wsabuf.buf = new char[other.bufsize];
-      wsabuf.len = other.bufsize;
-      std::memcpy(wsabuf.buf, other.wsabuf.buf, other.wsabuf.len);
-    }
-    return *this;
-  }
-};
+std::list<char> DEFAULT_RECVALL_CALLBACK(utils::ThreadPool* th,
+                                         IOCPPASSINDATA* data);
 
 class IOCP {
  public:
@@ -122,13 +38,25 @@ class IOCP {
 
   void destruct();
 
-  void registerSocket(IOCPPASSINDATA* data);
+  void registerSocket(std::shared_ptr<Socket> sock);
 
-  int recv(IOCPPASSINDATA* data);
+  std::future<std::vector<char>> recvFull(
+      std::shared_ptr<Socket> sock, std::uint32_t bufsize);
+
+  std::future<std::list<char>> recv(
+      std::shared_ptr<Socket> sock, std::uint32_t bufsize,
+      std::function<std::list<char>(utils::ThreadPool*, IOCPPASSINDATA*)>
+          callback = DEFAULT_RECVALL_CALLBACK);
   // data는 한 가지 소켓에 보내는 패킷만 담아야 합니다
-  int send(SOCKET sock, std::vector<IOCPPASSINDATA*>* data);
+  int send(std::shared_ptr<Socket> sock, std::vector<char>& data);
 
-  int GetRecvedPacketCount(SOCKET sock);
+  int GetRecvedBytes(SOCKET sock);
+
+  std::shared_ptr<std::list<IOCPPASSINDATA*>> GetSendQueue(SOCKET sock);
+  std::shared_ptr<std::list<std::pair<std::vector<char>, std::uint32_t>>>
+  GetRecvQueue(SOCKET sock);
+  std::shared_ptr<std::mutex> GetSendQueueMutex(SOCKET sock);
+  std::shared_ptr<std::mutex> GetRecvQueueMutex(SOCKET sock);
 
  private:
 #ifdef _WIN32
@@ -137,12 +65,6 @@ class IOCP {
 
 #endif
 
-  std::shared_ptr<std::list<IOCPPASSINDATA*>> GetSendQueue_(SOCKET sock);
-  std::shared_ptr<std::list<std::pair<std::vector<char>, std::uint32_t>>>
-  GetRecvQueue_(SOCKET sock);
-  std::shared_ptr<std::mutex> GetSendQueueMutex_(SOCKET sock);
-  std::shared_ptr<std::mutex> GetRecvQueueMutex_(SOCKET sock);
-
   void packet_sender_(SOCKET sock);
   utils::ThreadPool* IOCPThread_;
 
@@ -195,4 +117,56 @@ class IOCP {
 #endif
 };
 
+enum class IOCPEVENT { QUIT, READ, WRITE };
+
+struct IOCPPASSINDATA {
+  OVERLAPPED overlapped;
+  IOCPEVENT event;
+  std::shared_ptr<Socket> socket;
+  std::uint32_t transferredbytes;
+  WSABUF wsabuf;
+  IOCP* IOCPInstance;
+  std::packaged_task<std::list<char>(utils::ThreadPool*, IOCPPASSINDATA*)>
+      callback;
+#ifdef __linux__
+  std::shared_ptr<std::queue<IOCPPASSINDATA*>> sendQueue;
+#endif
+  IOCPPASSINDATA(std::shared_ptr<Socket> socket, std::uint32_t bufsize,
+                 IOCP* IOCPInstance)
+      : event(IOCPEVENT::QUIT),
+        socket(socket),
+        transferredbytes(0),
+        IOCPInstance(IOCPInstance) {
+    std::memset(&overlapped, 0, sizeof(overlapped));
+
+    wsabuf.buf = new char[bufsize];
+    wsabuf.len = bufsize;
+  }
+
+  IOCPPASSINDATA(
+      std::shared_ptr<Socket> socket, std::uint32_t bufsize, IOCP* IOCPInstance,
+      std::packaged_task<std::list<char>(utils::ThreadPool*, IOCPPASSINDATA*)>
+          callback_)
+      : event(IOCPEVENT::QUIT),
+        socket(socket),
+        transferredbytes(0),
+        IOCPInstance(IOCPInstance),
+        callback(std::move(callback_)) {
+    std::memset(&overlapped, 0, sizeof(overlapped));
+
+    wsabuf.buf = new char[bufsize];
+    wsabuf.len = bufsize;
+  }
+
+  ~IOCPPASSINDATA() {
+    if (wsabuf.buf != nullptr) delete[] wsabuf.buf;
+    wsabuf.buf = nullptr;
+  }
+
+  IOCPPASSINDATA(const IOCPPASSINDATA& other) = delete;
+  IOCPPASSINDATA& operator=(const IOCPPASSINDATA&) = delete;
+  IOCPPASSINDATA(IOCPPASSINDATA&&) = default;
+  IOCPPASSINDATA& operator=(IOCPPASSINDATA&&) = default;
+};
+
 }  // namespace Network

include/socket/packet.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <cstdint>
+
+namespace Packet {
+
+enum class Opcode : std::uint16_t {
+  NOP,
+  SPAWNMODEL,
+  DESPAWNMODEL,
+  UPDATEMODEL,
+  REQUESTMODELIDLIST,
+  CLIENTID,
+  COUNT
+};
+
+struct Header {
+  Opcode opcode;
+  double timestamp;
+  std::uint32_t body_length;
+
+  std::vector<char> Serialize() {
+    std::vector<char> serialize(14);
+    ::memcpy(serialize.data(), &opcode, 2);
+    ::memcpy(serialize.data() + 2, &timestamp, 8);
+    ::memcpy(serialize.data() + 10, &body_length, 4);
+    return serialize;
+  }
+
+  void Deserialize(std::vector<char>& data) {
+    ::memcpy(&opcode, data.data(), 2);
+    ::memcpy(&timestamp, data.data() + 2, 8);
+    ::memcpy(&body_length, data.data() + 10, 4);
+  }
+};
+
+}  // namespace Packet

include/socket/socket.h

@@ -7,7 +7,7 @@ struct Address;
 
 class Socket {
  public:
-  Socket() = default;
+  Socket();
   Socket(int domain, int type, int protocol);
   ~Socket();
 
@@ -19,14 +19,16 @@ class Socket {
   int setsockopt(int level, int optname, const char* optval, int optlen);
 
   int bind(Address __addr);
+  int connect(Network::Address& serveraddr);
 
   int recvfrom(void* __restrict __buf, size_t __n, int __flags,
                struct Address& __addr);
   int sendto(const void* __buf, size_t __n, int __flags, struct Address __addr);
 
   Socket(const Socket&);
-  Socket(Socket&&) noexcept;
   Socket& operator=(const Socket&);
+
+  Socket(Socket&&) noexcept;
   Socket& operator=(Socket&&) noexcept;
 
   struct Address bindAddr = {};
@@ -38,7 +40,7 @@ class Socket {
   std::mutex readMutex;
   std::mutex writeMutex;
 
- protected:
+private:
   bool valid_ = false;
 };
 

include/socket/tcp_socket.h

@@ -7,10 +7,11 @@ class TCPSocket : public Socket {
  public:
   using Socket::init;
   using Socket::Socket;
+  TCPSocket(int domain);
+
   int init(int domain);
   int listen(int __n);
-  void accept(TCPSocket& newSock, Address& addr);
-  int connect(Network::Address& serveraddr);
+  void accept(std::shared_ptr<TCPSocket>& newSock, Address& addr);
   int recv(void* __restrict __buf, size_t __n, int __flags);
   int send(const void* __buf, size_t __n, int __flags);
 };

include/socket/udp_socket.h

@@ -10,6 +10,7 @@ class UDPSocket : public Socket {
   using Socket::init;
   using Socket::Socket;
   int init(int domain);
+  int connect(Network::Address& serveraddr);
 };
 
 }  // namespace Socket

include/utils/ConfigManager.h

@@ -0,0 +1,29 @@
+#pragma once
+#include <json/json.h>
+
+#include <fstream>
+
+namespace utils {
+
+struct Config;
+
+class ConfigManager {
+ public:
+  static Config load();
+  static void save(Config&);
+};
+
+struct Config {
+  ~Config() { ConfigManager::save(*this); }
+  Json::Value configJsonRoot;
+  std::uint32_t ipVersion = 0;
+  gsl::czstring IP = "";
+  std::uint32_t Port = 0;
+  spdlog::level::level_enum logLevel = spdlog::level::off;
+  gsl::czstring logFileName = "";
+  std::uint32_t logfileSize = 0;
+  std::uint32_t logfileCount = 0;
+  std::uint64_t playerid = 0;
+};
+
+}  // namespace utils

include/utils/snowflake.h

@@ -16,9 +16,15 @@ struct Snowflake {
   bool operator==(const Snowflake& other) const {
     return snowflake == other.snowflake;
   }
+
+  std::vector<char> Serialize() {
+    std::vector<char> serialized(8);
+    ::memcpy(serialized.data(), &snowflake, 8);
+    return serialized;
+  }
 };
 
-Snowflake GenerateID();
+Snowflake GenerateID(std::uint8_t instance);
 
 }  // namespace Chattr
 

include/utils/utils.h

@@ -0,0 +1,9 @@
+#pragma once
+#include <list>
+#include <vector>
+
+namespace utils {
+
+std::vector<char> CvtListToVector(std::list<char> data);
+
+}  // namespace std

include/vulkan_engine/asset/object/model.h

@@ -5,17 +5,27 @@
 #include <vector>
 
 #include "material.h"
+#include "utils/snowflake.h"
 #include "vulkan_engine/vulkan/buffer_handle.h"
 #include "vulkan_engine/vulkan/vertex.h"
+#include "utils/thread_pool.h"
+
+extern std::uint8_t CLIENTID;
 
 namespace veng {
 struct Model {
-  Model() : graphics_(nullptr) {}
-  Model(class Graphics* graphics) : graphics_(graphics) {}
+  Model() : ID(utils::GenerateID(CLIENTID)), graphics_(nullptr) {
+  }
+  Model(class Graphics* graphics)
+      : ID(utils::GenerateID(CLIENTID)), graphics_(graphics) {
+  }
   ~Model();
 
   Model(const Model& other)
-      : vertices(other.vertices),
+      : ID(utils::GenerateID(CLIENTID)),
+        name(/*"_" + */other.name),
+        asset_name(other.asset_name),
+        vertices(other.vertices),
         vertex_buffer(other.vertex_buffer),
         indices(other.indices),
         index_buffer(other.index_buffer),
@@ -31,17 +41,23 @@ struct Model {
         original_offset(other.original_offset),
         owner(other.owner),
         radius(other.radius),
+        lifespan(other.lifespan),
         OnColision(other.OnColision),
         visible(other.visible),
-        colision(other.colision) {
+        colision(other.colision),
+        networkReplicated(other.networkReplicated),
+        lastUpdatedTime(other.lastUpdatedTime) {
     graphics_ = nullptr;
   }
 
   Model(Model&& other)
-      : vertices(other.vertices),
-        vertex_buffer(other.vertex_buffer),
-        indices(other.indices),
-        index_buffer(other.index_buffer),
+      : ID(other.ID),
+        name(other.name),
+        asset_name(other.asset_name),
+        vertices(std::move(other.vertices)),
+        vertex_buffer(std::move(other.vertex_buffer)),
+        indices(std::move(other.indices)),
+        index_buffer(std::move(other.index_buffer)),
         transform(other.transform),
         position(other.position),
         linear_velocity(other.linear_velocity),
@@ -54,46 +70,28 @@ struct Model {
         original_offset(other.original_offset),
         owner(other.owner),
         radius(other.radius),
+        lifespan(other.lifespan),
         OnColision(other.OnColision),
         visible(other.visible),
-        colision(other.colision) {
+        colision(other.colision),
+        networkReplicated(other.networkReplicated),
+        lastUpdatedTime(other.lastUpdatedTime) {
+    ::memset(&other.ID, 0, 8);
+
     graphics_ = other.graphics_;
     other.graphics_ = nullptr;
   }
 
-  Model& operator=(const Model& other) {
-    if (this != &other) {
-      vertices = other.vertices;
-      vertex_buffer = other.vertex_buffer;
-      indices = other.indices;
-      index_buffer = other.index_buffer;
-      transform = other.transform;
-      position = other.position;
-      linear_velocity = other.linear_velocity;
-      linear_acceleration = other.linear_acceleration;
-      rotation = other.rotation;
-      angular_velocity = other.angular_velocity;
-      angular_acceleration = other.angular_acceleration;
-      scale = other.scale;
-      material = other.material;
-      original_offset = other.original_offset;
-      owner = other.owner;
-      radius = other.radius;
-      OnColision = other.OnColision;
-      visible = other.visible;
-      colision = other.colision;
-
-      graphics_ = nullptr;
-    }
-    return *this;
-  }
-
   Model& operator=(Model&& other) noexcept {
     if (this != &other) {
+      ID = other.ID;
+      ::memset(&other.ID, 0, 8);
+      name = other.name;
+      asset_name = other.asset_name;
       vertices = std::move(other.vertices);
-      vertex_buffer = other.vertex_buffer;
+      vertex_buffer = std::move(other.vertex_buffer);
       indices = std::move(other.indices);
-      index_buffer = other.index_buffer;
+      index_buffer = std::move(other.index_buffer);
       transform = other.transform;
       position = other.position;
       linear_velocity = other.linear_velocity;
@@ -105,17 +103,26 @@ struct Model {
       material = std::move(other.material);
       original_offset = other.original_offset;
       owner = other.owner;
+      OwnerID = ID;
       radius = other.radius;
+      lifespan = other.lifespan;
       OnColision = other.OnColision;
       visible = other.visible;
       colision = other.colision;
+      networkReplicated = other.networkReplicated;
+      lastUpdatedTime = other.lastUpdatedTime;
 
-      // graphics_만 옮기고, 원본은 nullptr
       graphics_ = other.graphics_;
       other.graphics_ = nullptr;
     }
     return *this;
   }
+  utils::Snowflake ID;
+  std::string name;
+  std::string asset_name;
+
+  std::vector<char> Serialize();
+  void Deserialize(std::vector<char> data);
 
   std::vector<veng::Vertex> vertices;
   veng::BufferHandle vertex_buffer;
@@ -141,14 +148,29 @@ struct Model {
 
   glm::vec3 original_offset = glm::vec3(0.f);
 
-  Model* owner = this;
+  std::weak_ptr<Model> owner;
+  utils::Snowflake OwnerID;
 
   std::float_t radius = 0.f;
 
-  std::function<void(Model* self, Model* other)> OnColision = nullptr;
+  std::float_t lifespan = -1.f;
+
+  std::function<void(utils::ThreadPool* thread_pool, std::shared_ptr<Model> self,
+                     std::shared_ptr<Model> other)>
+      OnColision = nullptr;
 
   bool visible = true;
   bool colision = false;
+  bool networkReplicated = true;
+  bool shouldBeDestroyed = false;
+
+  bool needsUpdate = true;
+
+  double lastUpdatedTime = 0.f;  // 서버 기준 업데이트된 시간임
+
+  std::uint8_t updateRedundantCount = 0;
+
+  std::mutex modding;
 
  private:
   class Graphics* graphics_;

include/vulkan_engine/vulkan/engine.h

@@ -4,26 +4,31 @@
 #include "graphics.h"
 #include "physics.h"
 #include "utils/thread_pool.h"
+#include "socket/iocp.h"
 
 namespace veng {
 
 class Engine {
  public:
   Engine(gsl::not_null<Graphics*> vulkan_graphics,
-         utils::ThreadPool* thread_pool)
-      : vulkan_graphics(vulkan_graphics), thread_pool_(thread_pool) {}
+         utils::ThreadPool* thread_pool, Network::IOCP* iocp)
+      : vulkan_graphics(vulkan_graphics), thread_pool_(thread_pool), iocp_(iocp) {}
 
   void init();
 
   void LoadModelAsset(std::string path, std::string name);
   const Model* GetStaticModel(std::string name);
 
-  Model* SpawnModel(std::string asset_name, std::string name);
-  Model* SpawnLifedModel(std::string asset_name, std::string name,
+  // 수명을 무제한으로 놓고 싶으면 lifespan을 -1으로 설정하면 됨
+  std::shared_ptr<Model> SpawnLifedModel(std::string asset_name, std::string name,
                          std::float_t lifespan);
-  Model* GetSpawnedObject(std::string name);
+  std::shared_ptr<Model> GetSpawnedObject(std::string name);
 
   void Update();
+  void NetUpdate(std::shared_ptr<Network::Socket> sock);
+
+  void NetworkUpload(std::shared_ptr<Network::Socket> sock);
+  void ResponseToServerAndRefresh(std::shared_ptr<Network::Socket> sock);
 
   std::function<void(Engine&)> BeginPlay = [](Engine& engine) {};
   std::function<void(Engine&, std::float_t delta_time)> Tick =
@@ -39,17 +44,15 @@ class Engine {
 
  private:
   Loader asset_loader_;
-  Physics physics_controller_;
   utils::ThreadPool* thread_pool_;
+  Network::IOCP* iocp_;
 
   glm::ivec2 window_size_ = {0, 0};
   std::double_t last_frame_time_ = 0.0;
 
   std::unordered_map<std::string, veng::Model> model_assets_;
 
-  std::unordered_map<std::string, veng::Model> dynamic_immortal_models_;
-  std::unordered_map<std::string, std::pair<veng::Model, std::float_t>>
-      dynamic_models_;
+  std::unordered_map<std::string, std::shared_ptr<Model>> models_;
 };
 
 }  // namespace veng

include/vulkan_engine/vulkan/graphics.h

@@ -33,7 +33,7 @@ class Graphics final {
   void RenderBuffer(BufferHandle handle, std::uint32_t vertex_count);
   void RenderIndexedBuffer(BufferHandle vertex_buffer,
                            BufferHandle index_buffer, std::uint32_t count);
-  void RenderModel(struct Model* model);
+  void RenderModel(std::shared_ptr<struct Model> model);
   void EndFrame();
 
   BufferHandle CreateVertexBuffer(gsl::span<Vertex> vertices);

include/vulkan_engine/vulkan/physics.h

@@ -1,13 +1,18 @@
 #pragma once
 
+#include "utils/thread_pool.h"
 #include "vulkan_engine/asset/object/model.h"
 #include "vulkan_engine/vulkan/vertex.h"
-#include "utils/thread_pool.h"
 
 namespace veng {
 class Physics {
  public:
-  void invokeOnColisionEvent(gsl::not_null<utils::ThreadPool *> thread_pool, gsl::span<Model*> models);
+  static void invokeOnColisionEvent(
+      gsl::not_null<utils::ThreadPool*> thread_pool,
+      std::unordered_map<std::string, std::shared_ptr<Model>>& models);
+  static void invokeOnColisionEvent(
+      gsl::not_null<utils::ThreadPool*> thread_pool,
+      std::unordered_map<utils::Snowflake, std::shared_ptr<Model>>& models);
 
   bool RayTrace(const glm::vec3& rayOrigin, const glm::vec3& rayDir,
                 const glm::vec3& v0, const glm::vec3& v1, const glm::vec3& v2,