add sync projectiles

server/server.cpp

@@ -7,14 +7,30 @@
 #include <vector>
 #include <mutex>
 #include <map>
+#include <queue>
+#include <sstream>
 #include <Eigen/Dense>
 #define _USE_MATH_DEFINES
 #include <math.h>
 #include "../src/network/ClientState.h"
 #include <random>
 #include <algorithm>
+#include <chrono>
+#include <unordered_set>
+
+namespace beast = boost::beast;
+namespace http = beast::http;
+namespace websocket = beast::websocket;
+namespace net = boost::asio;
+using tcp = net::ip::tcp;
+
+struct DeathInfo {
+	int targetId = -1;
+	uint64_t serverTime = 0;
+	Eigen::Vector3f position = Eigen::Vector3f::Zero();
+	int killerId = -1;
+};
 
-// Вспомогательный split
 std::vector<std::string> split(const std::string& s, char delimiter) {
 	std::vector<std::string> tokens;
 	std::string token;
@@ -25,125 +41,95 @@ std::vector<std::string> split(const std::string& s, char delimiter) {
 	return tokens;
 }
 
-namespace beast = boost::beast;
-namespace http = beast::http;
-namespace websocket = beast::websocket;
-namespace net = boost::asio;
-using tcp = net::ip::tcp;
-
-class Session;
-
 struct ServerBox {
 	Eigen::Vector3f position;
 	Eigen::Matrix3f rotation;
 	float collisionRadius = 2.0f;
 };
 
+struct Projectile {
+	int shooterId = -1;
+	uint64_t spawnMs = 0;
+	Eigen::Vector3f pos;
+	Eigen::Vector3f vel;
+	float lifeMs = 5000.0f;
+};
+
 std::vector<ServerBox> g_serverBoxes;
 std::mutex g_boxes_mutex;
 
-
-std::vector<std::shared_ptr<Session>> g_sessions;
+std::vector<std::shared_ptr<class Session>> g_sessions;
 std::mutex g_sessions_mutex;
 
+std::vector<Projectile> g_projectiles;
+std::mutex g_projectiles_mutex;
+
+std::unordered_set<int> g_dead_players;
+std::mutex g_dead_mutex;
+
+class Session;
+
+void broadcastToAll(const std::string& message);
+
 class Session : public std::enable_shared_from_this<Session> {
 	websocket::stream<beast::tcp_stream> ws_;
 	beast::flat_buffer buffer_;
 	int id_;
 	bool is_writing_ = false;
+	std::queue<std::shared_ptr<std::string>> writeQueue_;
+	std::mutex writeMutex_;
 
+public:
 	ClientStateInterval timedClientStates;
 
-	void process_message(const std::string& msg) {
-		auto now_server = std::chrono::system_clock::now();
-		auto parts = split(msg, ':');
-
-		if (parts.empty()) {
-			std::cerr << "Empty message received\n";
-			return;
-		}
-
-		std::string type = parts[0];
-
-		if (type == "UPD") {
-			if (parts.size() < 16) {
-				std::cerr << "Invalid UPD message: too few parts (" << parts.size() << ")\n";
-				return;
-			}
-			uint64_t clientTimestamp = std::stoull(parts[1]);
-			ClientState receivedState;
-			receivedState.id = id_;
-			std::chrono::system_clock::time_point uptime_timepoint{
-				std::chrono::milliseconds(clientTimestamp)
-			};
-			receivedState.lastUpdateServerTime = uptime_timepoint;
-			receivedState.handle_full_sync(parts, 2);
-			retranslateMessage(msg);
-			timedClientStates.add_state(receivedState);
-		}
-		else if (parts[0] == "FIRE") {
-			if (parts.size() < 10) {
-				std::cerr << "Invalid FIRE: too few parts\n";
-				return;
-			}
-
-			uint64_t clientTime = std::stoull(parts[1]);
-			Eigen::Vector3f pos{
-				std::stof(parts[2]), std::stof(parts[3]), std::stof(parts[4])
-			};
-			Eigen::Quaternion dir{
-				std::stof(parts[5]), std::stof(parts[6]), std::stof(parts[7]), std::stof(parts[8])
-			};
-
-			float velocity = std::stof(parts[9]);
-
-			int shotCount = 2;
-			if (parts.size() >= 11) {
-				try {
-					shotCount = std::stoi(parts[10]);
-				}
-				catch (...) {
-					shotCount = 2;
-				}
-			}
-
-			std::string broadcast = "PROJECTILE:" +
-				std::to_string(id_) + ":" +
-				std::to_string(clientTime) + ":" +
-				std::to_string(pos.x()) + ":" +
-				std::to_string(pos.y()) + ":" +
-				std::to_string(pos.z()) + ":" +
-				std::to_string(dir.w()) + ":" +
-				std::to_string(dir.x()) + ":" +
-				std::to_string(dir.y()) + ":" +
-				std::to_string(dir.z()) + ":" +
-				std::to_string(velocity) + ":" +
-				std::to_string(shotCount);
-
-			std::lock_guard<std::mutex> lock(g_sessions_mutex);
-			std::cout << "Player " << id_ << " fired " << shotCount << " shots → broadcasting\n";
-
-			for (auto& session : g_sessions) {
-				if (session->get_id() != id_) {
-					session->send_message(broadcast);
-				}
-			}
-		}
-		else {
-			std::cerr << "Unknown message type: " << type << "\n";
-		}
+	explicit Session(tcp::socket&& socket, int id)
+		: ws_(std::move(socket)), id_(id) {
 	}
 
-	void retranslateMessage(const std::string& msg)
-	{
-		std::string event_msg = "EVENT:" + std::to_string(id_) + ":" + msg;
+	int get_id() const { return id_; }
 
-		std::lock_guard<std::mutex> lock(g_sessions_mutex);
-		for (auto& session : g_sessions) {
-			if (session->get_id() != id_) { // Не шлем отправителю
-				session->send_message(event_msg);
-			}
+	bool fetchStateAtTime(std::chrono::system_clock::time_point targetTime, ClientState& outState) const {
+		if (timedClientStates.canFetchClientStateAtTime(targetTime)) {
+			outState = timedClientStates.fetchClientStateAtTime(targetTime);
+			return true;
 		}
+		return false;
+	}
+
+	void send_message(const std::string& msg) {
+		auto ss = std::make_shared<std::string>(msg);
+		{
+			std::lock_guard<std::mutex> lock(writeMutex_);
+			writeQueue_.push(ss);
+		}
+		doWrite();
+	}
+
+	void run() {
+		{
+			std::lock_guard<std::mutex> lock(g_sessions_mutex);
+			g_sessions.push_back(shared_from_this());
+		}
+
+		ws_.async_accept([self = shared_from_this()](beast::error_code ec) {
+			if (ec) return;
+			std::cout << "Client " << self->id_ << " connected\n";
+			self->init();
+			});
+	}
+
+private:
+	void init() {
+		sendBoxesToClient();
+
+		auto timer = std::make_shared<net::steady_timer>(ws_.get_executor());
+		timer->expires_after(std::chrono::milliseconds(100));
+		timer->async_wait([self = shared_from_this(), timer](const boost::system::error_code& ec) {
+			if (!ec) {
+				self->send_message("ID:" + std::to_string(self->id_));
+				self->do_read();
+			}
+			});
 	}
 
 	void sendBoxesToClient() {
@@ -161,92 +147,44 @@ class Session : public std::enable_shared_from_this<Session> {
 				std::to_string(q.z()) + "|";
 		}
 
-		if (!boxMsg.empty() && boxMsg.back() == '|') {
-			boxMsg.pop_back();
-		}
+		if (!boxMsg.empty() && boxMsg.back() == '|') boxMsg.pop_back();
 
 		send_message(boxMsg);
 	}
 
-	void send_message(std::string msg) {
-		auto ss = std::make_shared<std::string>(std::move(msg));
-
-		if (is_writing_) {
-
-			ws_.async_write(net::buffer(*ss),
-				[self = shared_from_this(), ss](beast::error_code ec, std::size_t) {
-					if (ec) {
-						std::cerr << "Write error: " << ec.message() << std::endl;
-					}
-				});
+	void doWrite() {
+		std::lock_guard<std::mutex> lock(writeMutex_);
+		if (is_writing_ || writeQueue_.empty()) {
+			return;
 		}
-		else {
-			is_writing_ = true;
-			ws_.async_write(net::buffer(*ss),
-				[self = shared_from_this(), ss](beast::error_code ec, std::size_t) {
+
+		is_writing_ = true;
+		auto message = writeQueue_.front();
+
+		ws_.async_write(net::buffer(*message),
+			[self = shared_from_this(), message](beast::error_code ec, std::size_t) {
+				if (ec) {
+					std::cerr << "Write error: " << ec.message() << std::endl;
+					return;
+				}
+				{
+					std::lock_guard<std::mutex> lock(self->writeMutex_);
+					self->writeQueue_.pop();
 					self->is_writing_ = false;
-					if (ec) {
-						std::cerr << "Write error: " << ec.message() << std::endl;
-					}
-				});
-		}
-	}
-
-
-public:
-	explicit Session(tcp::socket&& socket, int id)
-		: ws_(std::move(socket)), id_(id) {
-	}
-
-	void init()
-	{
-		sendBoxesToClient();
-
-		auto timer = std::make_shared<net::steady_timer>(ws_.get_executor());
-		timer->expires_after(std::chrono::milliseconds(100));
-		timer->async_wait([self = shared_from_this(), timer](const boost::system::error_code& ec) {
-			if (!ec) {
-				self->send_message("ID:" + std::to_string(self->id_));
-				self->do_read();
-			}
+				}
+				self->doWrite();
 			});
 	}
 
-	void run() {
-
-		{
-			std::lock_guard<std::mutex> lock(g_sessions_mutex);
-			g_sessions.push_back(shared_from_this());
-		}
-
-		ws_.async_accept([self = shared_from_this()](beast::error_code ec) {
-			if (ec) return;
-			std::cout << "Client " << self->id_ << " connected\n";
-			self->init();
-			//  self->send_message("ID:" + std::to_string(self->id_));
-			 // self->do_read();
-			});
-	}
-
-	/*void send_message(std::string msg) {
-		auto ss = std::make_shared<std::string>(std::move(msg));
-		ws_.async_write(net::buffer(*ss), [ss](beast::error_code, std::size_t) {});
-	}*/
-
-	int get_id() const {
-		return id_;
-	}
-
-private:
 	void do_read() {
 		ws_.async_read(buffer_, [self = shared_from_this()](beast::error_code ec, std::size_t) {
-			if (ec)
-			{
+			if (ec) {
 				std::lock_guard<std::mutex> lock(g_sessions_mutex);
 				g_sessions.erase(std::remove_if(g_sessions.begin(), g_sessions.end(),
 					[self](const std::shared_ptr<Session>& session) {
 						return session.get() == self.get();
 					}), g_sessions.end());
+				std::cout << "Client " << self->id_ << " disconnected\n";
 				return;
 			}
 
@@ -257,15 +195,236 @@ private:
 			self->do_read();
 			});
 	}
+
+	void process_message(const std::string& msg) {
+		auto parts = split(msg, ':');
+
+		if (parts.empty()) return;
+
+		std::string type = parts[0];
+
+		if (type == "UPD") {
+			{
+				std::lock_guard<std::mutex> gd(g_dead_mutex);
+				if (g_dead_players.find(id_) != g_dead_players.end()) {
+					std::cout << "Server: Ignoring UPD from dead player " << id_ << std::endl;
+					return;
+				}
+			}
+
+			if (parts.size() < 16) return;
+			uint64_t clientTimestamp = std::stoull(parts[1]);
+			ClientState receivedState;
+			receivedState.id = id_;
+			std::chrono::system_clock::time_point uptime_timepoint{
+				std::chrono::milliseconds(clientTimestamp)
+			};
+			receivedState.lastUpdateServerTime = uptime_timepoint;
+			receivedState.handle_full_sync(parts, 2);
+			timedClientStates.add_state(receivedState);
+
+			retranslateMessage(msg);
+		}
+		else if (parts[0] == "RESPAWN") {
+			{
+				std::lock_guard<std::mutex> gd(g_dead_mutex);
+				g_dead_players.erase(id_);
+			}
+
+			std::string respawnMsg = "RESPAWN_ACK:" + std::to_string(id_);
+			broadcastToAll(respawnMsg);
+
+			std::cout << "Server: Player " << id_ << " respawned\n";
+		}
+		else if (parts[0] == "FIRE") {
+			if (parts.size() < 10) return;
+
+			uint64_t clientTime = std::stoull(parts[1]);
+			Eigen::Vector3f pos{
+				std::stof(parts[2]), std::stof(parts[3]), std::stof(parts[4])
+			};
+			Eigen::Quaternionf dir(
+				std::stof(parts[5]), std::stof(parts[6]), std::stof(parts[7]), std::stof(parts[8])
+			);
+			float velocity = std::stof(parts[9]);
+
+			int shotCount = 2;
+			if (parts.size() >= 11) {
+				try { shotCount = std::stoi(parts[10]); }
+				catch (...) { shotCount = 2; }
+			}
+
+			std::string broadcast = "PROJECTILE:" +
+				std::to_string(id_) + ":" +
+				std::to_string(clientTime) + ":" +
+				std::to_string(pos.x()) + ":" +
+				std::to_string(pos.y()) + ":" +
+				std::to_string(pos.z()) + ":" +
+				std::to_string(dir.w()) + ":" +
+				std::to_string(dir.x()) + ":" +
+				std::to_string(dir.y()) + ":" +
+				std::to_string(dir.z()) + ":" +
+				std::to_string(velocity);
+
+			{
+				std::lock_guard<std::mutex> lock(g_sessions_mutex);
+				for (auto& session : g_sessions) {
+					if (session->get_id() != id_) {
+						session->send_message(broadcast);
+					}
+				}
+			}
+
+			{
+				const std::vector<Eigen::Vector3f> localOffsets = {
+					Eigen::Vector3f(-1.5f, 0.9f, 5.0f),
+					Eigen::Vector3f(1.5f, 0.9f, 5.0f)
+				};
+
+				uint64_t now_ms = std::chrono::duration_cast<std::chrono::milliseconds>(
+					std::chrono::system_clock::now().time_since_epoch()).count();
+
+				std::lock_guard<std::mutex> pl(g_projectiles_mutex);
+				for (int i = 0; i < std::min(shotCount, (int)localOffsets.size()); ++i) {
+					Projectile pr;
+					pr.shooterId = id_;
+					pr.spawnMs = now_ms;
+					Eigen::Vector3f shotPos = pos + dir.toRotationMatrix() * localOffsets[i];
+					pr.pos = shotPos;
+					Eigen::Vector3f localForward(0.0f, 0.0f, -1.0f);
+					Eigen::Vector3f worldForward = dir.toRotationMatrix() * localForward;
+					float len = worldForward.norm();
+					if (len > 1e-6f) worldForward /= len;
+					pr.vel = worldForward * velocity;
+					pr.lifeMs = 5000.0f;
+					g_projectiles.push_back(pr);
+
+					std::cout << "Server: Created projectile from player " << id_
+						<< " at pos (" << shotPos.x() << ", " << shotPos.y() << ", " << shotPos.z()
+						<< ") vel (" << pr.vel.x() << ", " << pr.vel.y() << ", " << pr.vel.z() << ")" << std::endl;
+				}
+			}
+		}
+	}
+
+	void retranslateMessage(const std::string& msg) {
+		std::string event_msg = "EVENT:" + std::to_string(id_) + ":" + msg;
+
+		std::lock_guard<std::mutex> lock(g_sessions_mutex);
+		for (auto& session : g_sessions) {
+			if (session->get_id() != id_) {
+				session->send_message(event_msg);
+			}
+		}
+	}
 };
 
+void broadcastToAll(const std::string& message) {
+	std::lock_guard<std::mutex> lock(g_sessions_mutex);
+	for (const auto& session : g_sessions) {
+		session->send_message(message);
+	}
+}
+
 void update_world(net::steady_timer& timer, net::io_context& ioc) {
-
-	// TODO: Renew game state
-
-	timer.expires_after(std::chrono::milliseconds(50));
+	const std::chrono::milliseconds interval(50);
+	timer.expires_after(interval);
 	timer.async_wait([&](const boost::system::error_code& ec) {
-		if (!ec) update_world(timer, ioc);
+		if (ec) return;
+
+		auto now = std::chrono::system_clock::now();
+		uint64_t now_ms = static_cast<uint64_t>(std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()).count());
+
+		std::vector<DeathInfo> deathEvents;
+
+		{
+			std::lock_guard<std::mutex> pl(g_projectiles_mutex);
+			std::vector<int> indicesToRemove;
+
+			float dt = 50.0f / 1000.0f;
+
+			for (size_t i = 0; i < g_projectiles.size(); ++i) {
+				auto& pr = g_projectiles[i];
+
+				pr.pos += pr.vel * dt;
+
+				if (now_ms > pr.spawnMs + static_cast<uint64_t>(pr.lifeMs)) {
+					indicesToRemove.push_back(static_cast<int>(i));
+					continue;
+				}
+
+				bool hitDetected = false;
+
+				{
+					std::lock_guard<std::mutex> lm(g_sessions_mutex);
+					std::lock_guard<std::mutex> gd(g_dead_mutex);
+
+					for (auto& session : g_sessions) {
+						int targetId = session->get_id();
+
+						if (targetId == pr.shooterId) continue;
+						if (g_dead_players.find(targetId) != g_dead_players.end()) continue;
+
+						ClientState targetState;
+						if (!session->fetchStateAtTime(now, targetState)) continue;
+
+						Eigen::Vector3f diff = pr.pos - targetState.position;
+						const float shipRadius = 15.0f;
+						const float projectileRadius = 1.5f;
+						float combinedRadius = shipRadius + projectileRadius;
+
+						if (diff.squaredNorm() <= combinedRadius * combinedRadius) {
+							DeathInfo death;
+							death.targetId = targetId;
+							death.serverTime = now_ms;
+							death.position = pr.pos;
+							death.killerId = pr.shooterId;
+
+							deathEvents.push_back(death);
+							g_dead_players.insert(targetId);
+							indicesToRemove.push_back(static_cast<int>(i));
+							hitDetected = true;
+
+							std::cout << "Server: *** HIT DETECTED! ***" << std::endl;
+							std::cout << "Server: Projectile at ("
+								<< pr.pos.x() << ", " << pr.pos.y() << ", " << pr.pos.z()
+								<< ") hit player " << targetId << std::endl;
+							break;
+						}
+					}
+				}
+
+				if (hitDetected) continue;
+			}
+
+			if (!indicesToRemove.empty()) {
+				std::sort(indicesToRemove.rbegin(), indicesToRemove.rend());
+				for (int idx : indicesToRemove) {
+					if (idx >= 0 && idx < (int)g_projectiles.size()) {
+						g_projectiles.erase(g_projectiles.begin() + idx);
+					}
+				}
+			}
+		}
+
+		if (!deathEvents.empty()) {
+			for (const auto& death : deathEvents) {
+				std::string deadMsg = "DEAD:" +
+					std::to_string(death.serverTime) + ":" +
+					std::to_string(death.targetId) + ":" +
+					std::to_string(death.position.x()) + ":" +
+					std::to_string(death.position.y()) + ":" +
+					std::to_string(death.position.z()) + ":" +
+					std::to_string(death.killerId);
+
+				broadcastToAll(deadMsg);
+
+				std::cout << "Server: Sent DEAD event - Player " << death.targetId
+					<< " killed by " << death.killerId << std::endl;
+			}
+		}
+
+		update_world(timer, ioc);
 		});
 }
 
@@ -318,7 +477,6 @@ std::vector<ServerBox> generateServerBoxes(int count) {
 	return boxes;
 }
 
-
 int main() {
 	try {
 		{
@@ -341,7 +499,6 @@ int main() {
 				});
 			};
 
-
 		net::steady_timer timer(ioc);
 		update_world(timer, ioc);