feat(gameplay): add task ID to chunk requests to discard stale responses

include/Cubed/gameplay/client_world.hpp

@@ -52,6 +52,7 @@ public:
     void receive_player_logout(const LogoutRsp& rsp);
     int rendering_distance() const;
     void rendering_distance(int rendering_distance);
+    int get_chunk_task_id() const;
     void start_client_thread(std::string_view uuid);
     void stop_client_thread();
 
@@ -108,6 +109,7 @@ private:
     std::atomic<TickType> m_day_tick{6000};
     std::atomic<bool> m_requesting_chunk{false};
     std::atomic<bool> m_is_rebuilding{false};
+    std::atomic<int> m_chunk_task_id{0};
     std::shared_ptr<NetworkClient> m_client;
     ChunkLoadStyle m_chunk_load_style{ChunkLoadStyle::CENTER};
 

include/Cubed/gameplay/server_player.hpp

@@ -22,6 +22,8 @@ public:
     void update_pos(float x, float y, float z);
     void update_sync_gametick(TickType gametick);
     bool is_disconnect(TickType current_gametick) const;
+    int task_id() const;
+    void task_id(int id);
 
 private:
     static constexpr TickType TIMEOUT = 200;
@@ -32,5 +34,6 @@ private:
     ChunkPos m_last_chunk_pos{0, 0};
     std::shared_ptr<Session> m_session;
     std::atomic<TickType> m_last_gametick{0};
+    std::atomic<int> m_chunk_task_id{0};
 };
 } // namespace Cubed

include/Cubed/gameplay/server_world.hpp

@@ -72,7 +72,7 @@ public:
                              std::shared_ptr<Session> session);
     glm::vec3 get_player_pos(const std::string& uuid) const;
 
-    void handle_chunk_req(const std::string& uuid, ChunkPos pos);
+    void handle_chunk_req(int task_id, const std::string& uuid, ChunkPos pos);
     void handle_block_change(const BlockChangeReq& req);
     template <typename Fn>
     void register_timer(std::string_view id, TickType threshold, Fn&& f) {