feat: add network utils

Author: ramirezfernando

src/constants/network_constants.h

@@ -0,0 +1,8 @@
+#pragma once
+
+namespace Constants {
+
+inline constexpr int PORT = 8080;
+inline constexpr int MAX_BUFFER_SIZE = 1024;
+
+}  // namespace Constants

src/core/game.cpp

@@ -12,6 +12,7 @@
 #include <string>
 
 #include "constants/game_constants.h"
+#include "constants/network_constants.h"
 #include "core/window.h"
 #include "entities/actions/npc_movement_handler.h"
 #include "entities/actions/player_input_handler.h"
@@ -129,8 +130,7 @@ void Game::Update() {
   client_->Send(msg.c_str(), msg.size());
 
   // TODO(ramirezfernando): Receive updated other player state from server.
-  constexpr size_t maxBufferSize = 1024;
-  std::array<char, maxBufferSize> buf{};
+  std::array<char, Constants::MAX_BUFFER_SIZE> buf{};
   const ssize_t n = client_->Receive(buf.data(), buf.size());
   if (n > 0) {
     buf.at(static_cast<size_t>(n)) = '\0';

src/server.cpp

@@ -9,13 +9,15 @@
 #include <memory>
 #include <string>
 
+#include "constants/network_constants.h"
+
 int main() {
-  auto server = std::unique_ptr<Server>(Server::Create("8080"));
+  auto server =
+      std::unique_ptr<Server>(Server::Create(std::to_string(Constants::PORT)));
 
-  constexpr size_t maxBufferSize = 1024;
-  std::array<char, maxBufferSize> buf{};
+  std::array<char, Constants::MAX_BUFFER_SIZE> buf{};
   sockaddr_storage peer{};
-  socklen_t peer_len = sizeof(peer);  // Will be updated by ReceiveFrom.
+  socklen_t peer_len = sizeof(peer);
 
   while (true) {
     const ssize_t n =