fully implement KeepAlive behavior

include/server/Server.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <blitz/network/EnetServer.h>
+#include <blitz/protocol/PacketHandler.h>
+
+namespace blitz {
+namespace server {
+
+class Server {
+  public:
+	Server(std::uint16_t a_Port, std::shared_ptr<Nz::EnttWorld> a_World);
+	~Server();
+
+	network::EnetConnection* GetConnection(std::uint16_t a_PeerId);
+
+	void CloseConnection(std::uint16_t a_PeerId);
+
+  private:
+	void HandleConnect(network::EnetConnection&);
+	void HandleDisconnect(network::EnetConnection&);
+
+	struct Session {
+		network::EnetConnection* m_Connection;
+		std::vector<std::unique_ptr<protocol::PacketHandler>> m_Handlers;
+	};
+
+	EnttWorld m_World;
+	std::map<std::uint16_t, Session> m_Sessions;
+	network::EnetServer m_NetworkServer;
+
+	void RegisterHandlers(Session& session);
+	void RegisterSystems();
+	void CreateEntity(network::EnetConnection&);
+};
+
+}  // namespace server
+}  // namespace blitz