]> git.localhorst.tv Git - blank.git/blobdiff - src/net/net.cpp
also tell connection handlers about ack'd packets
[blank.git] / src / net / net.cpp
index 852efd3a419f2075ebd4b2878ff17216ce61e36c..18761572bd13364cb10cddd6a2ac410c5d6b4b2d 100644 (file)
@@ -1,4 +1,5 @@
 #include "Client.hpp"
+#include "ClientConnection.hpp"
 #include "Connection.hpp"
 #include "ConnectionHandler.hpp"
 #include "io.hpp"
@@ -10,6 +11,7 @@
 
 #include <cstring>
 #include <iostream>
+#include <glm/gtx/io.hpp>
 
 using namespace std;
 
@@ -20,6 +22,7 @@ constexpr size_t Packet::Ping::MAX_LEN;
 constexpr size_t Packet::Login::MAX_LEN;
 constexpr size_t Packet::Join::MAX_LEN;
 constexpr size_t Packet::Part::MAX_LEN;
+constexpr size_t Packet::PlayerUpdate::MAX_LEN;
 
 namespace {
 
@@ -100,6 +103,78 @@ uint16_t Client::SendLogin(const string &name) {
        return conn.Send(client_pack, client_sock);
 }
 
+uint16_t Client::SendPlayerUpdate(const Entity &player) {
+       auto pack = Packet::Make<Packet::PlayerUpdate>(client_pack);
+       pack.WritePlayer(player);
+       return conn.Send(client_pack, client_sock);
+}
+
+
+ClientConnection::ClientConnection(Server &server, const IPaddress &addr)
+: server(server)
+, conn(addr)
+, player(nullptr) {
+       conn.SetHandler(this);
+}
+
+ClientConnection::~ClientConnection() {
+       DetachPlayer();
+}
+
+void ClientConnection::Update(int dt) {
+       conn.Update(dt);
+       if (Disconnected()) {
+               cout << "disconnect from " << conn.Address() << endl;
+       } else if (conn.ShouldPing()) {
+               conn.SendPing(server.GetPacket(), server.GetSocket());
+       }
+}
+
+void ClientConnection::AttachPlayer(Entity &new_player) {
+       DetachPlayer();
+       player = &new_player;
+       player->Ref();
+}
+
+void ClientConnection::DetachPlayer() {
+       if (!player) return;
+       player->Kill();
+       player->UnRef();
+       player = nullptr;
+}
+
+void ClientConnection::On(const Packet::Login &pack) {
+       string name;
+       pack.ReadPlayerName(name);
+
+       Entity *new_player = server.GetWorld().AddPlayer(name);
+
+       if (new_player) {
+               // success!
+               AttachPlayer(*new_player);
+               cout << "accepted login from player \"" << name << '"' << endl;
+               auto response = Packet::Make<Packet::Join>(server.GetPacket());
+               response.WritePlayer(*new_player);
+               response.WriteWorldName(server.GetWorld().Name());
+               conn.Send(server.GetPacket(), server.GetSocket());
+       } else {
+               // aw no :(
+               cout << "rejected login from player \"" << name << '"' << endl;
+               Packet::Make<Packet::Part>(server.GetPacket());
+               conn.Send(server.GetPacket(), server.GetSocket());
+               conn.Close();
+       }
+}
+
+void ClientConnection::On(const Packet::Part &) {
+       conn.Close();
+}
+
+void ClientConnection::On(const Packet::PlayerUpdate &pack) {
+       if (!HasPlayer()) return;
+       pack.ReadPlayer(Player());
+}
+
 
 Connection::Connection(const IPaddress &addr)
 : handler(nullptr)
@@ -196,10 +271,23 @@ void Connection::Received(const UDPpacket &udp_pack) {
                                }
                        }
                }
+               // check for newly ack'd packets
+               for (uint16_t s = ctrl_new.AckBegin(); s != ctrl_new.AckEnd(); ++s) {
+                       if (ctrl_new.Acks(s) && !ctrl_in.Acks(s)) {
+                               Handler().OnPacketReceived(s);
+                       }
+               }
                ctrl_in = ctrl_new;
        }
 }
 
+bool Packet::TControl::Acks(uint16_t s) const noexcept {
+       int16_t diff = int16_t(ack) - int16_t(s);
+       if (diff == 0) return true;
+       if (diff < 0 || diff > 32) return false;
+       return (hist & (1 << (diff - 1))) != 0;
+}
+
 uint16_t Connection::SendPing(UDPpacket &udp_pack, UDPsocket sock) {
        Packet::Make<Packet::Ping>(udp_pack);
        return Send(udp_pack, sock);
@@ -229,6 +317,8 @@ const char *Packet::Type2String(uint8_t t) noexcept {
                        return "Join";
                case Part::TYPE:
                        return "Part";
+               case PlayerUpdate::TYPE:
+                       return "PlayerUpdate";
                default:
                        return "Unknown";
        }
@@ -282,8 +372,7 @@ void Packet::Login::ReadPlayerName(string &name) const noexcept {
 }
 
 void Packet::Join::WritePlayer(const Entity &player) noexcept {
-       // TODO: generate entity IDs
-       Write(uint32_t(1), 0);
+       Write(player.ID(), 0);
        Write(player.ChunkCoords(), 4);
        Write(player.Position(), 16);
        Write(player.Velocity(), 28);
@@ -291,15 +380,17 @@ void Packet::Join::WritePlayer(const Entity &player) noexcept {
        Write(player.AngularVelocity(), 56);
 }
 
+void Packet::Join::ReadPlayerID(uint32_t &id) const noexcept {
+       Read(id, 0);
+}
+
 void Packet::Join::ReadPlayer(Entity &player) const noexcept {
-       uint32_t id = 0;
        glm::ivec3 chunk_coords(0);
        glm::vec3 pos;
        glm::vec3 vel;
        glm::quat rot;
        glm::vec3 ang;
 
-       Read(id, 0);
        Read(chunk_coords, 4);
        Read(pos, 16);
        Read(vel, 28);
@@ -320,6 +411,33 @@ void Packet::Join::ReadWorldName(string &name) const noexcept {
        ReadString(name, 68, 32);
 }
 
+void Packet::PlayerUpdate::WritePlayer(const Entity &player) noexcept {
+       Write(player.ChunkCoords(), 0);
+       Write(player.Position(), 12);
+       Write(player.Velocity(), 24);
+       Write(player.Orientation(), 36);
+       Write(player.AngularVelocity(), 52);
+}
+
+void Packet::PlayerUpdate::ReadPlayer(Entity &player) const noexcept {
+       glm::ivec3 chunk_coords(0);
+       glm::vec3 pos;
+       glm::vec3 vel;
+       glm::quat rot;
+       glm::vec3 ang;
+
+       Read(chunk_coords, 0);
+       Read(pos, 12);
+       Read(vel, 24);
+       Read(rot, 36);
+       Read(ang, 52);
+
+       player.Position(chunk_coords, pos);
+       player.Velocity(vel);
+       player.Orientation(rot);
+       player.AngularVelocity(ang);
+}
+
 
 void ConnectionHandler::Handle(const UDPpacket &udp_pack) {
        const Packet &pack = *reinterpret_cast<const Packet *>(udp_pack.data);
@@ -336,6 +454,9 @@ void ConnectionHandler::Handle(const UDPpacket &udp_pack) {
                case Packet::Part::TYPE:
                        On(Packet::As<Packet::Part>(udp_pack));
                        break;
+               case Packet::PlayerUpdate::TYPE:
+                       On(Packet::As<Packet::PlayerUpdate>(udp_pack));
+                       break;
                default:
                        // drop unknown or unhandled packets
                        break;
@@ -386,85 +507,29 @@ void Server::HandlePacket(const UDPpacket &udp_pack) {
                return;
        }
 
-       Connection &client = GetClient(udp_pack.address);
-       client.Received(udp_pack);
-
-       switch (pack.header.type) {
-               case Packet::Login::TYPE:
-                       HandleLogin(client, udp_pack);
-                       break;
-               case Packet::Part::TYPE:
-                       HandlePart(client, udp_pack);
-                       break;
-               default:
-                       // just drop packets of unknown or unhandled type
-                       break;
-       }
+       ClientConnection &client = GetClient(udp_pack.address);
+       client.GetConnection().Received(udp_pack);
 }
 
-Connection &Server::GetClient(const IPaddress &addr) {
-       for (Connection &client : clients) {
+ClientConnection &Server::GetClient(const IPaddress &addr) {
+       for (ClientConnection &client : clients) {
                if (client.Matches(addr)) {
                        return client;
                }
        }
-       clients.emplace_back(addr);
-       OnConnect(clients.back());
+       clients.emplace_back(*this, addr);
        return clients.back();
 }
 
-void Server::OnConnect(Connection &client) {
-       cout << "new connection from " << client.Address() << endl;
-       // tell it we're alive
-       client.SendPing(serv_pack, serv_sock);
-}
-
 void Server::Update(int dt) {
-       for (list<Connection>::iterator client(clients.begin()), end(clients.end()); client != end;) {
+       for (list<ClientConnection>::iterator client(clients.begin()), end(clients.end()); client != end;) {
                client->Update(dt);
-               if (client->Closed()) {
-                       OnDisconnect(*client);
+               if (client->Disconnected()) {
                        client = clients.erase(client);
                } else {
-                       if (client->ShouldPing()) {
-                               client->SendPing(serv_pack, serv_sock);
-                       }
                        ++client;
                }
        }
 }
 
-void Server::OnDisconnect(Connection &client) {
-       cout << "connection timeout from " << client.Address() << endl;
-}
-
-
-void Server::HandleLogin(Connection &client, const UDPpacket &udp_pack) {
-       auto pack = Packet::As<Packet::Login>(udp_pack);
-
-       string name;
-       pack.ReadPlayerName(name);
-
-       Entity *player = world.AddPlayer(name);
-
-       if (player) {
-               // success!
-               cout << "accepted login from player \"" << name << '"' << endl;
-               auto response = Packet::Make<Packet::Join>(serv_pack);
-               response.WritePlayer(*player);
-               response.WriteWorldName(world.Name());
-               client.Send(serv_pack, serv_sock);
-       } else {
-               // aw no :(
-               cout << "rejected login from player \"" << name << '"' << endl;
-               Packet::Make<Packet::Part>(serv_pack);
-               client.Send(serv_pack, serv_sock);
-               client.Close();
-       }
-}
-
-void Server::HandlePart(Connection &client, const UDPpacket &udp_pack) {
-       client.Close();
-}
-
 }