feat(server): add block change packet handling and increase reserved threads

include/Cubed/constants.hpp

@@ -25,7 +25,7 @@ constexpr float DEFAULT_G = 22.5f;
 constexpr int SIZE_X = CHUNK_SIZE;
 constexpr int SIZE_Y = WORLD_SIZE_Y;
 constexpr int SIZE_Z = CHUNK_SIZE;
-constexpr int RESERVED_THREADS = 3;
+constexpr int RESERVED_THREADS = 5;
 
 constexpr float DEFAULT_CAVE_PROBABILITY = 0.035f;
 

include/Cubed/gameplay/network_server.hpp

@@ -11,16 +11,21 @@ public:
     NetworkServer(int port = 25530);
     ~NetworkServer();
     void stop();
-    void run();
+
+    // Run in another thread after initialization is complete
+    void start_server();
+
     int port() const;
+
     std::unordered_map<std::string, std::shared_ptr<Session>> m_session;
 
 private:
     asio::io_context m_io;
-    std::thread m_server;
+    std::thread m_net_thread;
     int m_port = 25530;
     std::atomic<bool> m_stopped{false};
     ServerWorld m_world;
     asio::awaitable<void> listen();
+    void net_run();
 };
 } // namespace Cubed

include/Cubed/gameplay/packet.hpp

@@ -15,6 +15,8 @@ enum class PacketEnum {
     PLAYER_POS = 2002,
     CHUNK_DATA_REQ = 3001,
     CHUNK_DATA_RSP = 3002,
+    BLOCK_CHANGE_REQ = 3003,
+    BLOCK_CHANGE_RSP = 3004,
     PING = 9001,
     PONG = 9002
 
@@ -39,6 +41,10 @@ template <typename T> constexpr uint16_t get_packet_id() {
         return to_num(CHUNK_DATA_REQ);
     } else if constexpr (is_same_v<U, ChunkDataRsp>) {
         return to_num(CHUNK_DATA_RSP);
+    } else if constexpr (is_same_v<U, BlockChangeReq>) {
+        return to_num(BLOCK_CHANGE_REQ);
+    } else if constexpr (is_same_v<U, BlockChangeRsp>) {
+        return to_num(BLOCK_CHANGE_RSP);
     } else if constexpr (is_same_v<U, Ping>) {
         return to_num(PING);
     } else if (is_same_v<U, Pong>) {

include/Cubed/gameplay/server_world.hpp

@@ -7,6 +7,7 @@
 #include "Cubed/gameplay/server_chunk.hpp"
 #include "Cubed/gameplay/server_player.hpp"
 #include "Cubed/tools/thread_pool.hpp"
+#include "world/block_change.pb.h"
 
 #include <future>
 #include <shared_mutex>
@@ -63,7 +64,7 @@ public:
     int chunk_load_style() const;
     void set_chunk_load_style(int id);
 
-    void set_block(const glm::ivec3& block_pos, unsigned id);
+    bool set_block(const glm::ivec3& block_pos, unsigned id);
 
     void sync_player_pos(const std::string& uuid, float x, float y, float z);
     void handle_player_login(const std::string& player_name,
@@ -71,6 +72,7 @@ public:
     glm::vec3 get_player_pos(const std::string& uuid) const;
 
     void handle_chunk_req(const std::string& uuid, ChunkPos pos);
+    void handle_block_change(const BlockChangeReq& req);
 
 private:
     enum class ChunkLoadStyle { RANDOM, CENTER };

src/gameplay/network_server.cpp

@@ -20,8 +20,8 @@ void NetworkServer::stop() {
 
     m_io.stop();
     m_session.clear();
-    if (m_server.joinable()) {
-        m_server.join();
+    if (m_net_thread.joinable()) {
+        m_net_thread.join();
     }
     Logger::info("Server Stopped!");
 }
@@ -42,14 +42,19 @@ asio::awaitable<void> NetworkServer::listen() {
     co_return;
 }
 
-void NetworkServer::run() {
-    m_server = std::thread([this]() {
+void NetworkServer::net_run() {
+    m_net_thread = std::thread([this]() {
         asio::co_spawn(m_io, listen(), asio::detached);
         m_io.run();
     });
     Logger::info("Server Started!");
 }
 
+void NetworkServer::start_server() {
+    m_world.init_world();
+    net_run();
+}
+
 int NetworkServer::port() const { return m_port; }
 
 } // namespace Cubed

src/gameplay/server_world.cpp

@@ -47,17 +47,9 @@ void ServerWorld::init_world() {
     Logger::info("Chunk Block Init Finish, Time Consuming: {}", d);
 
     start_server_thread();
-
-    Logger::info("TestPlayer Create Finish");
 }
 
-void ServerWorld::init_chunks() {
-    hot_reload();
-    while (!m_chunk_gen_finished) {
-        // Logger::info("World Spawn: {:.2f}%", m_chunk_gen_fraction.load());
-        std::this_thread::sleep_for(std::chrono::microseconds(200));
-    }
-}
+void ServerWorld::init_chunks() { hot_reload(); }
 
 void ServerWorld::gen_chunks_internal(std::optional<std::string> uuid) {
     // Logger::info("gen_chunks_internal");
@@ -304,7 +296,7 @@ void ServerWorld::need_gen(std::optional<std::string> uuid) {
     m_gen_cv.notify_one();
 }
 
-void ServerWorld::set_block(const glm::ivec3& block_pos, unsigned id) {
+bool ServerWorld::set_block(const glm::ivec3& block_pos, unsigned id) {
 
     int world_x, world_y, world_z;
     world_x = block_pos.x;
@@ -316,17 +308,18 @@ void ServerWorld::set_block(const glm::ivec3& block_pos, unsigned id) {
     auto it = m_chunks.find(ChunkPos{chunk_x, chunk_z});
 
     if (it == m_chunks.end()) {
-        return;
+        return false;
     }
 
     auto [x, y, z] = ServerChunk::world_to_block(world_x, world_y, world_z,
                                                  chunk_x, chunk_z);
     if (x < 0 || y < 0 || z < 0 || x >= CHUNK_SIZE || y >= WORLD_SIZE_Y ||
         z >= CHUNK_SIZE) {
-        return;
+        return false;
     }
 
     it->second.set_chunk_block(ServerChunk::index(x, y, z), id);
+    return true;
 }
 
 void ServerWorld::hot_reload() {
@@ -456,6 +449,27 @@ void ServerWorld::handle_chunk_req(const std::string& uuid, ChunkPos pos) {
     s->send(make_packet(rsq));
 }
 
+void ServerWorld::handle_block_change(const BlockChangeReq& req) {
+    float x = req.pos().x();
+    float y = req.pos().y();
+    float z = req.pos().z();
+    if (!set_block(glm::ivec3(x, y, z), req.block())) {
+        return;
+    }
+    BlockChangeRsp rsp;
+    auto* pos = rsp.mutable_pos();
+    pos->set_x(x);
+    pos->set_y(y);
+    pos->set_z(z);
+    rsp.set_block(req.block());
+
+    for (auto& [uuid, session] : m_player_session) {
+        if (session) {
+            session->send(make_packet(rsp));
+        }
+    }
+}
+
 int ServerWorld::rendering_distance() const {
     return m_rendering_distance.load();
 }

src/gameplay/session.cpp

@@ -80,6 +80,12 @@ asio::awaitable<void> Session::read_loop() {
                         req.uuid(), ChunkPos(req.pos().x(), req.pos().z()));
                 }
             }
+            if (cmd_id == to_num(PacketEnum::BLOCK_CHANGE_REQ)) {
+                BlockChangeReq req;
+                if (req.ParseFromArray(body_data.data(), body_data.size())) {
+                    m_server_world.handle_block_change(req);
+                }
+            }
         }
     } catch (const asio::system_error& e) {
         Logger::warn("Catch Asio Error {}", e.what());

src/proto/packet.proto

@@ -8,4 +8,5 @@ import "player/player.proto";
 import "auth/auth.proto";
 import "system/ping.proto";
 import "system/pong.proto";
-import "world/chunk_data.proto";
+import "world/chunk_data.proto";
+import "world/block_change.proto";

src/proto/world/block_change.proto

@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+import "common/vector3.proto";
+
+message BlockChangeReq {
+    string uuid = 1;
+    Vec3 pos = 2;
+    uint32 block = 3;
+}
+
+message BlockChangeRsp {
+    Vec3 pos = 1;
+    uint32 block = 2;
+}