implement server and client player join/leave notifications

include/server/Server.h

@@ -8,6 +8,10 @@ namespace server {
 
 class Server {
   public:
+	/**
+	 * \brief Construct a server
+	 * \pre Two instances of Server should not share the same world
+	 */
 	Server(std::uint16_t a_Port, std::shared_ptr<Nz::EnttWorld> a_World);
 	~Server();
 

include/server/components/ServerIdCounter.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <blitz/common/Types.h>
+
+namespace blitz {
+namespace server {
+
+struct ServerIdCounterComponent {
+	EntityID m_NextEntityId;
+};
+
+}  // namespace server
+}  // namespace blitz

include/server/handlers/PlayerLoginHandler.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <blitz/protocol/PacketHandler.h>
+
+namespace blitz {
+namespace server {
+
+class PlayerLoginHandler : public protocol::PacketHandler {
+  public:
+	PlayerLoginHandler(network::EnetConnection& a_Connection, EnttWorld& a_World);
+	~PlayerLoginHandler();
+
+	NazaraSlot(network::EnetConnection, OnPlayerLogin, m_Slot);
+
+  private:
+	void Handle(std::uint16_t, const protocol::data::PlayerLogin&);
+};
+
+}  // namespace server
+}  // namespace blitz