-#include "Client.hpp"
#include "Connection.hpp"
+#include "ConnectionHandler.hpp"
#include "io.hpp"
#include "Packet.hpp"
-#include "Server.hpp"
#include "../app/init.hpp"
+#include "../model/Model.hpp"
+#include "../world/Entity.hpp"
+#include "../world/EntityState.hpp"
#include <cstring>
-#include <iostream>
using namespace std;
namespace blank {
-namespace {
+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;
+constexpr size_t Packet::SpawnEntity::MAX_LEN;
+constexpr size_t Packet::DespawnEntity::MAX_LEN;
+constexpr size_t Packet::EntityUpdate::MAX_LEN;
+constexpr size_t Packet::PlayerCorrection::MAX_LEN;
+constexpr size_t Packet::ChunkBegin::MAX_LEN;
+constexpr size_t Packet::ChunkData::MAX_LEN;
+constexpr size_t Packet::BlockUpdate::MAX_LEN;
+constexpr size_t Packet::Message::MAX_LEN;
+constexpr size_t Packet::Message::MAX_MESSAGE_LEN;
-UDPsocket client_bind(Uint16 port) {
- UDPsocket sock = SDLNet_UDP_Open(port);
- if (!sock) {
- throw NetError("SDLNet_UDP_Open");
- }
- return sock;
+Connection::Connection(const IPaddress &addr)
+: handler(nullptr)
+, addr(addr)
+, send_timer(500)
+, recv_timer(10000)
+, ctrl_out{ 0, 0xFFFF, 0xFFFFFFFF }
+, ctrl_in{ 0, 0xFFFF, 0xFFFFFFFF }
+, closed(false) {
+ send_timer.Start();
+ recv_timer.Start();
}
-IPaddress client_resolve(const char *host, Uint16 port) {
- IPaddress addr;
- if (SDLNet_ResolveHost(&addr, host, port) != 0) {
- throw NetError("SDLNet_ResolveHost");
- }
- return addr;
+bool Connection::Matches(const IPaddress &remote) const noexcept {
+ return memcmp(&addr, &remote, sizeof(IPaddress)) == 0;
+}
+
+void Connection::FlagSend() noexcept {
+ send_timer.Reset();
+}
+
+void Connection::FlagRecv() noexcept {
+ recv_timer.Reset();
}
+bool Connection::ShouldPing() const noexcept {
+ return !closed && send_timer.HitOnce();
}
-Client::Client(const Config &conf, World &world)
-: world(world)
-, conn(client_resolve(conf.host.c_str(), conf.port))
-, client_sock(client_bind(0))
-, client_pack{ -1, nullptr, 0 } {
- client_pack.data = new Uint8[sizeof(Packet)];
- client_pack.maxlen = sizeof(Packet);
- // establish connection
- conn.SendPing(client_pack, client_sock);
+bool Connection::TimedOut() const noexcept {
+ return recv_timer.HitOnce();
}
-Client::~Client() {
- delete[] client_pack.data;
- SDLNet_UDP_Close(client_sock);
+void Connection::Update(int dt) {
+ send_timer.Update(dt);
+ recv_timer.Update(dt);
+ if (TimedOut()) {
+ Close();
+ if (HasHandler()) {
+ Handler().OnTimeout();
+ }
+ }
}
-void Client::Handle() {
- int result = SDLNet_UDP_Recv(client_sock, &client_pack);
- while (result > 0) {
- HandlePacket(client_pack);
- result = SDLNet_UDP_Recv(client_sock, &client_pack);
+uint16_t Connection::Send(UDPpacket &udp_pack, UDPsocket sock) {
+ Packet &pack = *reinterpret_cast<Packet *>(udp_pack.data);
+ pack.header.ctrl = ctrl_out;
+ uint16_t seq = ctrl_out.seq++;
+
+ udp_pack.address = addr;
+ if (SDLNet_UDP_Send(sock, -1, &udp_pack) == 0) {
+ throw NetError("SDLNet_UDP_Send");
}
- if (result == -1) {
- // a boo boo happened
- throw NetError("SDLNet_UDP_Recv");
+
+ if (HasHandler()) {
+ Handler().PacketOut(udp_pack);
+ Handler().PacketSent(seq);
}
+
+ FlagSend();
+ return seq;
}
-void Client::HandlePacket(const UDPpacket &udp_pack) {
- if (!conn.Matches(udp_pack.address)) {
- // packet came from somewhere else, drop
- return;
+void Connection::Received(const UDPpacket &udp_pack) {
+ Packet &pack = *reinterpret_cast<Packet *>(udp_pack.data);
+
+ // ack to the remote
+ int16_t diff = int16_t(pack.header.ctrl.seq) - int16_t(ctrl_out.ack);
+ if (diff > 0) {
+ if (diff >= 32) {
+ ctrl_out.hist = 0;
+ } else {
+ ctrl_out.hist <<= diff;
+ ctrl_out.hist |= 1 << (diff - 1);
+ }
+ } else if (diff < 0 && diff >= -32) {
+ ctrl_out.hist |= 1 << (-diff - 1);
}
- const Packet &pack = *reinterpret_cast<const Packet *>(udp_pack.data);
- if (pack.header.tag != Packet::TAG) {
- // mistagged packet, drop
+ ctrl_out.ack = pack.header.ctrl.seq;
+ FlagRecv();
+
+ if (!HasHandler()) {
return;
}
- conn.FlagRecv();
- cout << "I got something!" << endl;
+ Packet::TControl ctrl_new = pack.header.ctrl;
+ Handler().PacketIn(udp_pack);
+ Handler().Handle(udp_pack);
+
+ if (diff > 0) {
+ // if the packet holds more recent information
+ // check if remote failed to ack one of our packets
+ diff = int16_t(ctrl_new.ack) - int16_t(ctrl_in.ack);
+ // should always be true, but you never know…
+ if (diff > 0) {
+ for (int i = 0; i < diff; ++i) {
+ if (i > 32 || (i < 32 && (ctrl_in.hist & (1 << (31 - i))) == 0)) {
+ Handler().PacketLost(ctrl_in.ack - 32 + i);
+ }
+ }
+ }
+ // 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().PacketReceived(s);
+ }
+ }
+ ctrl_in = ctrl_new;
+ }
}
-void Client::Update(int dt) {
- conn.Update(dt);
- if (conn.TimedOut()) {
- cout << "connection timed out :(" << endl;
- } else if (conn.ShouldPing()) {
- conn.SendPing(client_pack, client_sock);
- }
+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);
+}
-Connection::Connection(const IPaddress &addr)
-: addr(addr)
-, send_timer(5000)
-, recv_timer(10000) {
- send_timer.Start();
- recv_timer.Start();
+
+ConnectionHandler::ConnectionHandler()
+: packets_lost(0)
+, packets_received(0)
+, packet_loss(0.0f)
+, stamp_cursor(15)
+, stamp_last(0)
+, rtt(64.0f)
+, next_sample(1000)
+, tx_bytes(0)
+, rx_bytes(0)
+, tx_kbps(0.0f)
+, rx_kbps(0.0f) {
+ Uint32 now = SDL_GetTicks();
+ for (Uint32 &s : stamps) {
+ s = now;
+ }
+ next_sample += now;
}
-bool Connection::Matches(const IPaddress &remote) const noexcept {
- return memcmp(&addr, &remote, sizeof(IPaddress)) == 0;
+void ConnectionHandler::PacketSent(uint16_t seq) noexcept {
+ if (!SamplePacket(seq)) {
+ return;
+ }
+ stamp_cursor = (stamp_cursor + 1) % 16;
+ stamps[stamp_cursor] = SDL_GetTicks();
+ stamp_last = seq;
}
-void Connection::FlagSend() noexcept {
- send_timer.Reset();
+void ConnectionHandler::PacketLost(uint16_t seq) {
+ OnPacketLost(seq);
+ ++packets_lost;
+ UpdatePacketLoss();
+ UpdateRTT(seq);
}
-void Connection::FlagRecv() noexcept {
- recv_timer.Reset();
+void ConnectionHandler::PacketReceived(uint16_t seq) {
+ OnPacketReceived(seq);
+ ++packets_received;
+ UpdatePacketLoss();
+ UpdateRTT(seq);
}
-bool Connection::ShouldPing() const noexcept {
- return send_timer.HitOnce();
+void ConnectionHandler::UpdatePacketLoss() noexcept {
+ unsigned int packets_total = packets_lost + packets_received;
+ if (packets_total >= 256) {
+ packet_loss = float(packets_lost) / float(packets_total);
+ packets_lost = 0;
+ packets_received = 0;
+ }
}
-bool Connection::TimedOut() const noexcept {
- return recv_timer.HitOnce();
+void ConnectionHandler::UpdateRTT(std::uint16_t seq) noexcept {
+ if (!SamplePacket(seq)) return;
+ int diff = HeadDiff(seq);
+ if (diff > 0 || diff < -15) {
+ // packet outside observed time frame
+ return;
+ }
+ int cur_rtt = SDL_GetTicks() - stamps[(stamp_cursor + diff + 16) % 16];
+ rtt += (cur_rtt - rtt) * 0.1f;
}
-void Connection::Update(int dt) {
- send_timer.Update(dt);
- recv_timer.Update(dt);
+bool ConnectionHandler::SamplePacket(std::uint16_t seq) const noexcept {
+ // only sample every eighth packet
+ return seq % 8 == 0;
}
+int ConnectionHandler::HeadDiff(std::uint16_t seq) const noexcept {
+ int16_t diff = int16_t(seq) - int16_t(stamp_last);
+ return diff / 8;
+}
-void Connection::Send(UDPpacket &pack, UDPsocket sock) {
- pack.address = addr;
- if (SDLNet_UDP_Send(sock, -1, &pack) == 0) {
- throw NetError("SDLNet_UDP_Send");
- }
- FlagSend();
+void ConnectionHandler::PacketIn(const UDPpacket &pack) noexcept {
+ rx_bytes += pack.len + 20; // I know, I know, it's an estimate (about 48 for IPv6)
+ UpdateStats();
}
-void Connection::SendPing(UDPpacket &udp_pack, UDPsocket sock) {
- Packet &pack = *reinterpret_cast<Packet *>(udp_pack.data);
- udp_pack.len = pack.Ping();
- Send(udp_pack, sock);
+void ConnectionHandler::PacketOut(const UDPpacket &pack) noexcept {
+ tx_bytes += pack.len + 20;
+ UpdateStats();
+}
+
+void ConnectionHandler::UpdateStats() noexcept {
+ Uint32 now = SDL_GetTicks();
+ if (now >= next_sample) {
+ tx_kbps = float(tx_bytes) * (1.0f / 1024.0f);
+ rx_kbps = float(rx_bytes) * (1.0f / 1024.0f);
+ tx_bytes = 0;
+ rx_bytes = 0;
+ next_sample += 1000;
+ }
}
}
-void Packet::Tag() noexcept {
- header.tag = TAG;
+const char *Packet::Type2String(uint8_t t) noexcept {
+ switch (t) {
+ case Ping::TYPE:
+ return "Ping";
+ case Login::TYPE:
+ return "Login";
+ case Join::TYPE:
+ return "Join";
+ case Part::TYPE:
+ return "Part";
+ case PlayerUpdate::TYPE:
+ return "PlayerUpdate";
+ case SpawnEntity::TYPE:
+ return "SpawnEntity";
+ case DespawnEntity::TYPE:
+ return "DespawnEntity";
+ case EntityUpdate::TYPE:
+ return "EntityUpdate";
+ case PlayerCorrection::TYPE:
+ return "PlayerCorrection";
+ case ChunkBegin::TYPE:
+ return "ChunkBegin";
+ case ChunkData::TYPE:
+ return "ChunkData";
+ case BlockUpdate::TYPE:
+ return "BlockUpdate";
+ case Message::TYPE:
+ return "Message";
+ default:
+ return "Unknown";
+ }
+}
+
+template<class T>
+void Packet::Payload::Write(const T &src, size_t off) noexcept {
+ if ((length - off) < sizeof(T)) {
+ // dismiss out of bounds write
+ return;
+ }
+ *reinterpret_cast<T *>(&data[off]) = src;
}
-size_t Packet::Ping() noexcept {
- Tag();
- header.type = PING;
- return sizeof(Header);
+template<class T>
+void Packet::Payload::Read(T &dst, size_t off) const noexcept {
+ if ((length - off) < sizeof(T)) {
+ // dismiss out of bounds read
+ return;
+ }
+ dst = *reinterpret_cast<T *>(&data[off]);
}
+void Packet::Payload::WriteString(const string &src, size_t off, size_t maxlen) noexcept {
+ uint8_t *dst = &data[off];
+ size_t len = min(maxlen, length - off);
+ if (src.size() < len) {
+ memset(dst, '\0', len);
+ memcpy(dst, src.c_str(), src.size());
+ } else {
+ memcpy(dst, src.c_str(), len);
+ }
+}
-Server::Server(const Config &conf, World &world)
-: serv_sock(nullptr)
-, serv_pack{ -1, nullptr, 0 }
-, clients()
-, world(world) {
- serv_sock = SDLNet_UDP_Open(conf.port);
- if (!serv_sock) {
- throw NetError("SDLNet_UDP_Open");
+void Packet::Payload::ReadString(string &dst, size_t off, size_t maxlen) const noexcept {
+ size_t len = min(maxlen, length - off);
+ dst.clear();
+ dst.reserve(len);
+ for (size_t i = 0; i < len && data[off + i] != '\0'; ++i) {
+ dst.push_back(data[off + i]);
}
+}
- serv_pack.data = new Uint8[sizeof(Packet)];
- serv_pack.maxlen = sizeof(Packet);
+void Packet::Payload::Write(const glm::quat &val, size_t off) noexcept {
+ WritePackN(val.w, off);
+ WritePackN(val.x, off + 2);
+ WritePackN(val.y, off + 4);
+ WritePackN(val.z, off + 6);
}
-Server::~Server() {
- delete[] serv_pack.data;
- SDLNet_UDP_Close(serv_sock);
+void Packet::Payload::Read(glm::quat &val, size_t off) const noexcept {
+ ReadPackN(val.w, off);
+ ReadPackN(val.x, off + 2);
+ ReadPackN(val.y, off + 4);
+ ReadPackN(val.z, off + 6);
+ val = normalize(val);
}
+void Packet::Payload::Write(const EntityState &state, size_t off) noexcept {
+ Write(state.chunk_pos, off);
+ WritePackU(state.block_pos * (1.0f / 16.0f), off + 12);
+ Write(state.velocity, off + 18);
+ Write(state.orient, off + 30);
+ WritePackN(state.pitch * PI_0p5_inv, off + 38);
+ WritePackN(state.yaw * PI_inv, off + 40);
+}
-void Server::Handle() {
- int result = SDLNet_UDP_Recv(serv_sock, &serv_pack);
- while (result > 0) {
- HandlePacket(serv_pack);
- result = SDLNet_UDP_Recv(serv_sock, &serv_pack);
- }
- if (result == -1) {
- // a boo boo happened
- throw NetError("SDLNet_UDP_Recv");
- }
+void Packet::Payload::Read(EntityState &state, size_t off) const noexcept {
+ Read(state.chunk_pos, off);
+ ReadPackU(state.block_pos, off + 12);
+ Read(state.velocity, off + 18);
+ Read(state.orient, off + 30);
+ ReadPackN(state.pitch, off + 38);
+ ReadPackN(state.yaw, off + 40);
+ state.block_pos *= 16.0f;
+ state.pitch *= PI_0p5;
+ state.yaw *= PI;
}
-void Server::HandlePacket(const UDPpacket &udp_pack) {
- if (udp_pack.len < int(sizeof(Packet::Header))) {
- // packet too small, drop
- return;
+void Packet::Payload::Write(const EntityState &state, const glm::ivec3 &base, size_t off) noexcept {
+ WritePackB(state.chunk_pos - base, off);
+ WritePackU(state.block_pos * (1.0f / 16.0f), off + 3);
+ Write(state.velocity, off + 9);
+ Write(state.orient, off + 21);
+ WritePackN(state.pitch * PI_0p5_inv, off + 29);
+ WritePackN(state.yaw * PI_inv, off + 31);
+}
+
+void Packet::Payload::Read(EntityState &state, const glm::ivec3 &base, size_t off) const noexcept {
+ ReadPackB(state.chunk_pos, off);
+ ReadPackU(state.block_pos, off + 3);
+ Read(state.velocity, off + 9);
+ Read(state.orient, off + 21);
+ ReadPackN(state.pitch, off + 29);
+ ReadPackN(state.yaw, off + 31);
+ state.chunk_pos += base;
+ state.block_pos *= 16.0f;
+ state.pitch *= PI_0p5;
+ state.yaw *= PI;
+}
+
+void Packet::Payload::WritePackB(const glm::ivec3 &val, size_t off) noexcept {
+ Write(int8_t(val.x), off);
+ Write(int8_t(val.y), off + 1);
+ Write(int8_t(val.z), off + 2);
+}
+
+void Packet::Payload::ReadPackB(glm::ivec3 &val, size_t off) const noexcept {
+ int8_t conv = 0;
+ Read(conv, off);
+ val.x = conv;
+ Read(conv, off + 1);
+ val.y = conv;
+ Read(conv, off + 2);
+ val.z = conv;
+}
+
+void Packet::Payload::WritePackN(float val, size_t off) noexcept {
+ int16_t raw = glm::clamp(glm::round(val * 32767.0f), -32767.0f, 32767.0f);
+ Write(raw, off);
+}
+
+void Packet::Payload::ReadPackN(float &val, size_t off) const noexcept {
+ int16_t raw = 0;
+ Read(raw, off);
+ val = raw * (1.0f/32767.0f);
+}
+
+void Packet::Payload::WritePackN(const glm::vec3 &val, size_t off) noexcept {
+ WritePackN(val.x, off);
+ WritePackN(val.y, off + 2);
+ WritePackN(val.z, off + 4);
+}
+
+void Packet::Payload::ReadPackN(glm::vec3 &val, size_t off) const noexcept {
+ ReadPackN(val.x, off);
+ ReadPackN(val.y, off + 2);
+ ReadPackN(val.z, off + 4);
+}
+
+void Packet::Payload::WritePackU(float val, size_t off) noexcept {
+ uint16_t raw = glm::clamp(glm::round(val * 65535.0f), 0.0f, 65535.0f);
+ Write(raw, off);
+}
+
+void Packet::Payload::ReadPackU(float &val, size_t off) const noexcept {
+ uint16_t raw = 0;
+ Read(raw, off);
+ val = raw * (1.0f/65535.0f);
+}
+
+void Packet::Payload::WritePackU(const glm::vec3 &val, size_t off) noexcept {
+ WritePackU(val.x, off);
+ WritePackU(val.y, off + 2);
+ WritePackU(val.z, off + 4);
+}
+
+void Packet::Payload::ReadPackU(glm::vec3 &val, size_t off) const noexcept {
+ ReadPackU(val.x, off);
+ ReadPackU(val.y, off + 2);
+ ReadPackU(val.z, off + 4);
+}
+
+
+void Packet::Login::WritePlayerName(const string &name) noexcept {
+ WriteString(name, 0, 32);
+}
+
+void Packet::Login::ReadPlayerName(string &name) const noexcept {
+ ReadString(name, 0, 32);
+}
+
+void Packet::Join::WritePlayer(const Entity &player) noexcept {
+ Write(player.ID(), 0);
+ Write(player.GetState(), 4);
+}
+
+void Packet::Join::ReadPlayerID(uint32_t &id) const noexcept {
+ Read(id, 0);
+}
+
+void Packet::Join::ReadPlayerState(EntityState &state) const noexcept {
+ Read(state, 4);
+}
+
+void Packet::Join::WriteWorldName(const string &name) noexcept {
+ WriteString(name, 46, 32);
+}
+
+void Packet::Join::ReadWorldName(string &name) const noexcept {
+ ReadString(name, 46, 32);
+}
+
+void Packet::PlayerUpdate::WritePredictedState(const EntityState &state) noexcept {
+ Write(state, 0);
+}
+
+void Packet::PlayerUpdate::ReadPredictedState(EntityState &state) const noexcept {
+ Read(state, 0);
+}
+
+void Packet::PlayerUpdate::WriteMovement(const glm::vec3 &mov) noexcept {
+ WritePackN(mov, 42);
+}
+
+void Packet::PlayerUpdate::ReadMovement(glm::vec3 &mov) const noexcept {
+ ReadPackN(mov, 42);
+}
+
+void Packet::PlayerUpdate::WriteActions(uint8_t actions) noexcept {
+ Write(actions, 48);
+}
+
+void Packet::PlayerUpdate::ReadActions(uint8_t &actions) const noexcept {
+ Read(actions, 48);
+}
+
+void Packet::PlayerUpdate::WriteSlot(uint8_t slot) noexcept {
+ Write(slot, 49);
+}
+
+void Packet::PlayerUpdate::ReadSlot(uint8_t &slot) const noexcept {
+ Read(slot, 49);
+}
+
+void Packet::SpawnEntity::WriteEntity(const Entity &e) noexcept {
+ Write(e.ID(), 0);
+ if (e.GetModel()) {
+ Write(e.GetModel().GetModel().ID(), 4);
+ } else {
+ Write(uint32_t(0), 4);
}
- const Packet &pack = *reinterpret_cast<const Packet *>(udp_pack.data);
- if (pack.header.tag != Packet::TAG) {
- // mistagged packet, drop
- return;
+ Write(e.GetState(), 8);
+ Write(e.Bounds(), 50);
+ uint32_t flags = 0;
+ if (e.WorldCollidable()) {
+ flags |= 1;
}
+ Write(flags, 74);
+ WriteString(e.Name(), 78, 32);
+}
- Connection &client = GetClient(udp_pack.address);
- client.FlagRecv();
+void Packet::SpawnEntity::ReadEntityID(uint32_t &id) const noexcept {
+ Read(id, 0);
}
-Connection &Server::GetClient(const IPaddress &addr) {
- for (Connection &client : clients) {
- if (client.Matches(addr)) {
- return client;
- }
- }
- clients.emplace_back(addr);
- OnConnect(clients.back());
- return clients.back();
+void Packet::SpawnEntity::ReadModelID(uint32_t &id) const noexcept {
+ Read(id, 4);
}
-void Server::OnConnect(Connection &client) {
- cout << "new connection from " << client.Address() << endl;
- // tell it we're alive
- client.SendPing(serv_pack, serv_sock);
+void Packet::SpawnEntity::ReadEntity(Entity &e) const noexcept {
+ EntityState state;
+ AABB bounds;
+ uint32_t flags = 0;
+ string name;
+
+ Read(state, 8);
+ Read(bounds, 50);
+ Read(flags, 74);
+ ReadString(name, 78, 32);
+
+ e.SetState(state);
+ e.Bounds(bounds);
+ e.WorldCollidable(flags & 1);
+ e.Name(name);
}
-void Server::Update(int dt) {
- for (list<Connection>::iterator client(clients.begin()), end(clients.end()); client != end;) {
- client->Update(dt);
- if (client->TimedOut()) {
- OnDisconnect(*client);
- client = clients.erase(client);
- } else {
- if (client->ShouldPing()) {
- client->SendPing(serv_pack, serv_sock);
- }
- ++client;
- }
- }
+void Packet::DespawnEntity::WriteEntityID(uint32_t id) noexcept {
+ Write(id, 0);
+}
+
+void Packet::DespawnEntity::ReadEntityID(uint32_t &id) const noexcept {
+ Read(id, 0);
+}
+
+void Packet::EntityUpdate::WriteEntityCount(uint32_t count) noexcept {
+ Write(count, 0);
+}
+
+void Packet::EntityUpdate::ReadEntityCount(uint32_t &count) const noexcept {
+ Read(count, 0);
+}
+
+void Packet::EntityUpdate::WriteChunkBase(const glm::ivec3 &base) noexcept {
+ Write(base, 4);
+}
+
+void Packet::EntityUpdate::ReadChunkBase(glm::ivec3 &base) const noexcept {
+ Read(base, 4);
+}
+
+void Packet::EntityUpdate::WriteEntity(const Entity &entity, const glm::ivec3 &base, uint32_t num) noexcept {
+ uint32_t off = GetSize(num);
+
+ Write(entity.ID(), off);
+ Write(entity.GetState(), base, off + 4);
+}
+
+void Packet::EntityUpdate::ReadEntityID(uint32_t &id, uint32_t num) const noexcept {
+ uint32_t off = GetSize(num);
+ Read(id, off);
+}
+
+void Packet::EntityUpdate::ReadEntityState(EntityState &state, const glm::ivec3 &base, uint32_t num) const noexcept {
+ uint32_t off = GetSize(num);
+ Read(state, base, off + 4);
+}
+
+void Packet::PlayerCorrection::WritePacketSeq(std::uint16_t s) noexcept {
+ Write(s, 0);
+}
+
+void Packet::PlayerCorrection::ReadPacketSeq(std::uint16_t &s) const noexcept {
+ Read(s, 0);
+}
+
+void Packet::PlayerCorrection::WritePlayer(const Entity &player) noexcept {
+ Write(player.GetState(), 2);
+}
+
+void Packet::PlayerCorrection::ReadPlayerState(EntityState &state) const noexcept {
+ Read(state, 2);
+}
+
+void Packet::ChunkBegin::WriteTransmissionId(uint32_t id) noexcept {
+ Write(id, 0);
+}
+
+void Packet::ChunkBegin::ReadTransmissionId(uint32_t &id) const noexcept {
+ Read(id, 0);
}
-void Server::OnDisconnect(Connection &client) {
- cout << "connection timeout from " << client.Address() << endl;
+void Packet::ChunkBegin::WriteFlags(uint32_t f) noexcept {
+ Write(f, 4);
+}
+
+void Packet::ChunkBegin::ReadFlags(uint32_t &f) const noexcept {
+ Read(f, 4);
+}
+
+void Packet::ChunkBegin::WriteChunkCoords(const glm::ivec3 &pos) noexcept {
+ Write(pos, 8);
+}
+
+void Packet::ChunkBegin::ReadChunkCoords(glm::ivec3 &pos) const noexcept {
+ Read(pos, 8);
+}
+
+void Packet::ChunkBegin::WriteDataSize(uint32_t s) noexcept {
+ Write(s, 20);
+}
+
+void Packet::ChunkBegin::ReadDataSize(uint32_t &s) const noexcept {
+ Read(s, 20);
+}
+
+void Packet::ChunkData::WriteTransmissionId(uint32_t id) noexcept {
+ Write(id, 0);
+}
+
+void Packet::ChunkData::ReadTransmissionId(uint32_t &id) const noexcept {
+ Read(id, 0);
+}
+
+void Packet::ChunkData::WriteDataOffset(uint32_t o) noexcept {
+ Write(o, 4);
+}
+
+void Packet::ChunkData::ReadDataOffset(uint32_t &o) const noexcept {
+ Read(o, 4);
+}
+
+void Packet::ChunkData::WriteDataSize(uint32_t s) noexcept {
+ Write(s, 8);
+}
+
+void Packet::ChunkData::ReadDataSize(uint32_t &s) const noexcept {
+ Read(s, 8);
+}
+
+void Packet::ChunkData::WriteData(const uint8_t *d, size_t l) noexcept {
+ size_t len = min(length - 12, l);
+ memcpy(&data[12], d, len);
+}
+
+void Packet::ChunkData::ReadData(uint8_t *d, size_t l) const noexcept {
+ size_t len = min(length - 12, l);
+ memcpy(d, &data[12], len);
+}
+
+void Packet::BlockUpdate::WriteChunkCoords(const glm::ivec3 &coords) noexcept {
+ Write(coords, 0);
+}
+
+void Packet::BlockUpdate::ReadChunkCoords(glm::ivec3 &coords) const noexcept {
+ Read(coords, 0);
+}
+
+void Packet::BlockUpdate::WriteBlockCount(uint32_t count) noexcept {
+ Write(count, 12);
+}
+
+void Packet::BlockUpdate::ReadBlockCount(uint32_t &count) const noexcept {
+ Read(count, 12);
+}
+
+void Packet::BlockUpdate::WriteIndex(uint16_t index, uint32_t num) noexcept {
+ uint32_t off = GetSize(num);
+ Write(index, off);
+}
+
+void Packet::BlockUpdate::ReadIndex(uint16_t &index, uint32_t num) const noexcept {
+ uint32_t off = GetSize(num);
+ Read(index, off);
+}
+
+void Packet::BlockUpdate::WriteBlock(const Block &block, uint32_t num) noexcept {
+ uint32_t off = GetSize(num) + 2;
+ Write(block, off);
+}
+
+void Packet::BlockUpdate::ReadBlock(Block &block, uint32_t num) const noexcept {
+ uint32_t off = GetSize(num) + 2;
+ Read(block, off);
+}
+
+void Packet::Message::WriteType(uint8_t type) noexcept {
+ Write(type, 0);
+}
+
+void Packet::Message::ReadType(uint8_t &type) const noexcept {
+ Read(type, 0);
+}
+
+void Packet::Message::WriteReferral(uint32_t ref) noexcept {
+ Write(ref, 1);
+}
+
+void Packet::Message::ReadReferral(uint32_t &ref) const noexcept {
+ Read(ref, 1);
+}
+
+void Packet::Message::WriteMessage(const string &msg) noexcept {
+ WriteString(msg, 5, MAX_MESSAGE_LEN);
+}
+
+void Packet::Message::ReadMessage(string &msg) const noexcept {
+ ReadString(msg, 5, MAX_MESSAGE_LEN);
+}
+
+
+void ConnectionHandler::Handle(const UDPpacket &udp_pack) {
+ const Packet &pack = *reinterpret_cast<const Packet *>(udp_pack.data);
+ switch (pack.Type()) {
+ case Packet::Ping::TYPE:
+ On(Packet::As<Packet::Ping>(udp_pack));
+ break;
+ case Packet::Login::TYPE:
+ On(Packet::As<Packet::Login>(udp_pack));
+ break;
+ case Packet::Join::TYPE:
+ On(Packet::As<Packet::Join>(udp_pack));
+ break;
+ case Packet::Part::TYPE:
+ On(Packet::As<Packet::Part>(udp_pack));
+ break;
+ case Packet::PlayerUpdate::TYPE:
+ On(Packet::As<Packet::PlayerUpdate>(udp_pack));
+ break;
+ case Packet::SpawnEntity::TYPE:
+ On(Packet::As<Packet::SpawnEntity>(udp_pack));
+ break;
+ case Packet::DespawnEntity::TYPE:
+ On(Packet::As<Packet::DespawnEntity>(udp_pack));
+ break;
+ case Packet::EntityUpdate::TYPE:
+ On(Packet::As<Packet::EntityUpdate>(udp_pack));
+ break;
+ case Packet::PlayerCorrection::TYPE:
+ On(Packet::As<Packet::PlayerCorrection>(udp_pack));
+ break;
+ case Packet::ChunkBegin::TYPE:
+ On(Packet::As<Packet::ChunkBegin>(udp_pack));
+ break;
+ case Packet::ChunkData::TYPE:
+ On(Packet::As<Packet::ChunkData>(udp_pack));
+ break;
+ case Packet::BlockUpdate::TYPE:
+ On(Packet::As<Packet::BlockUpdate>(udp_pack));
+ break;
+ case Packet::Message::TYPE:
+ On(Packet::As<Packet::Message>(udp_pack));
+ break;
+ default:
+ // drop unknown or unhandled packets
+ break;
+ }
}
}
projects / blank.git / blobdiff