#include "Server.hpp"
#include "../app/init.hpp"
-#include "../model/CompositeModel.hpp"
+#include "../geometry/distance.hpp"
+#include "../io/WorldSave.hpp"
+#include "../model/Model.hpp"
#include "../world/ChunkIndex.hpp"
#include "../world/Entity.hpp"
#include "../world/World.hpp"
+#include <algorithm>
#include <iostream>
#include <zlib.h>
+#include <glm/gtx/io.hpp>
using namespace std;
ClientConnection::ClientConnection(Server &server, const IPaddress &addr)
: server(server)
, conn(addr)
-, player(nullptr, nullptr)
+, input()
, player_model(nullptr)
, spawns()
, confirm_wait(0)
, entity_updates()
+, entity_updates_skipped(0)
, player_update_state()
, player_update_pack(0)
, player_update_timer(1500)
+, old_actions(0)
, transmitter(*this)
, chunk_queue()
, old_base() {
// they're the same
if (CanDespawn(*global_iter)) {
SendDespawn(*local_iter);
- } else {
+ } else if (SendingUpdates()) {
// update
QueueUpdate(*local_iter);
}
bool ClientConnection::CanSpawn(const Entity &e) const noexcept {
return
- &e != player.entity &&
+ &e != &PlayerEntity() &&
!e.Dead() &&
manhattan_radius(e.ChunkCoords() - PlayerEntity().ChunkCoords()) < 7;
}
}
uint16_t ClientConnection::Send(size_t len) {
- server.GetPacket().len = len;
+ server.GetPacket().len = sizeof(Packet::Header) + len;
return Send();
}
++confirm_wait;
}
+bool ClientConnection::SendingUpdates() const noexcept {
+ return entity_updates_skipped >= NetStat().SuggestedPacketSkip();
+}
+
void ClientConnection::QueueUpdate(SpawnStatus &status) {
// don't send updates while spawn not ack'd or despawn sent
if (status.spawn_pack == -1 && status.despawn_pack == -1) {
}
void ClientConnection::SendUpdates() {
+ if (!SendingUpdates()) {
+ entity_updates.clear();
+ ++entity_updates_skipped;
+ return;
+ }
+ auto base = PlayerChunks().Base();
auto pack = Prepare<Packet::EntityUpdate>();
+ pack.WriteChunkBase(base);
int entity_pos = 0;
for (SpawnStatus *status : entity_updates) {
- pack.WriteEntity(*status->entity, entity_pos);
+ pack.WriteEntity(*status->entity, base, entity_pos);
++entity_pos;
if (entity_pos == Packet::EntityUpdate::MAX_ENTITIES) {
pack.WriteEntityCount(entity_pos);
Send(Packet::EntityUpdate::GetSize(entity_pos));
}
entity_updates.clear();
+ entity_updates_skipped = 0;
}
void ClientConnection::CheckPlayerFix() {
}
}
+namespace {
+
+struct QueueCompare {
+ explicit QueueCompare(const glm::ivec3 &base)
+ : base(base) { }
+ bool operator ()(const glm::ivec3 &left, const glm::ivec3 &right) const noexcept {
+ const glm::ivec3 ld(left - base);
+ const glm::ivec3 rd(right - base);
+ return
+ ld.x * ld.x + ld.y * ld.y + ld.z * ld.z <
+ rd.x * rd.x + rd.y * rd.y + rd.z * rd.z;
+ }
+ const glm::ivec3 &base;
+};
+
+}
+
void ClientConnection::CheckChunkQueue() {
if (PlayerChunks().Base() != old_base) {
- Chunk::Pos begin = PlayerChunks().CoordsBegin();
- Chunk::Pos end = PlayerChunks().CoordsEnd();
- for (Chunk::Pos pos = begin; pos.z < end.z; ++pos.z) {
+ ExactLocation::Coarse begin = PlayerChunks().CoordsBegin();
+ ExactLocation::Coarse end = PlayerChunks().CoordsEnd();
+ for (ExactLocation::Coarse pos = begin; pos.z < end.z; ++pos.z) {
for (pos.y = begin.y; pos.y < end.y; ++pos.y) {
for (pos.x = begin.x; pos.x < end.x; ++pos.x) {
if (manhattan_radius(pos - old_base) > PlayerChunks().Extent()) {
}
}
old_base = PlayerChunks().Base();
+ sort(chunk_queue.begin(), chunk_queue.end(), QueueCompare(old_base));
+ }
+ // if we have packet skip enabled and just pushed an entity
+ // update, don't also send chunk data
+ if (NetStat().SuggestedPacketSkip() > 0 && entity_updates_skipped == 0) {
+ return;
}
if (transmitter.Transmitting()) {
transmitter.Transmit();
int count = 0;
constexpr int max = 64;
while (count < max && !chunk_queue.empty()) {
- Chunk::Pos pos = chunk_queue.front();
+ ExactLocation::Coarse pos = chunk_queue.front();
chunk_queue.pop_front();
if (PlayerChunks().InRange(pos)) {
Chunk *chunk = PlayerChunks().Get(pos);
}
}
-void ClientConnection::AttachPlayer(const Player &new_player) {
+void ClientConnection::AttachPlayer(Player &player) {
DetachPlayer();
- player = new_player;
- player.entity->Ref();
+ input.reset(new DirectInput(server.GetWorld(), player, server));
+ PlayerEntity().Ref();
- old_base = player.chunks->Base();
- Chunk::Pos begin = player.chunks->CoordsBegin();
- Chunk::Pos end = player.chunks->CoordsEnd();
- for (Chunk::Pos pos = begin; pos.z < end.z; ++pos.z) {
+ old_base = PlayerChunks().Base();
+ ExactLocation::Coarse begin = PlayerChunks().CoordsBegin();
+ ExactLocation::Coarse end = PlayerChunks().CoordsEnd();
+ for (ExactLocation::Coarse pos = begin; pos.z < end.z; ++pos.z) {
for (pos.y = begin.y; pos.y < end.y; ++pos.y) {
for (pos.x = begin.x; pos.x < end.x; ++pos.x) {
chunk_queue.push_back(pos);
}
}
}
+ sort(chunk_queue.begin(), chunk_queue.end(), QueueCompare(old_base));
+ // TODO: should the server do this?
if (HasPlayerModel()) {
- GetPlayerModel().Instantiate(player.entity->GetModel());
+ GetPlayerModel().Instantiate(PlayerEntity().GetModel());
}
- cout << "player \"" << player.entity->Name() << "\" joined" << endl;
+ string msg = "player \"" + player.Name() + "\" joined";
+ cout << msg << endl;
+ server.DistributeMessage(0, 0, msg);
}
void ClientConnection::DetachPlayer() {
if (!HasPlayer()) return;
- cout << "player \"" << player.entity->Name() << "\" left" << endl;
- player.entity->Kill();
- player.entity->UnRef();
- player.entity = nullptr;
- player.chunks = nullptr;
+ string msg = "player \"" + input->GetPlayer().Name() + "\" left";
+ cout << msg << endl;
+ server.DistributeMessage(0, 0, msg);
+
+ server.GetWorldSave().Write(input->GetPlayer());
+ PlayerEntity().Kill();
+ PlayerEntity().UnRef();
+ input.reset();
transmitter.Abort();
chunk_queue.clear();
+ old_actions = 0;
}
-void ClientConnection::SetPlayerModel(const CompositeModel &m) noexcept {
+void ClientConnection::SetPlayerModel(const Model &m) noexcept {
player_model = &m;
if (HasPlayer()) {
m.Instantiate(PlayerEntity().GetModel());
return player_model;
}
-const CompositeModel &ClientConnection::GetPlayerModel() const noexcept {
+const Model &ClientConnection::GetPlayerModel() const noexcept {
return *player_model;
}
string name;
pack.ReadPlayerName(name);
- Player new_player = server.GetWorld().AddPlayer(name);
+ Player *new_player = server.JoinPlayer(name);
- if (new_player.entity) {
+ if (new_player) {
// success!
- AttachPlayer(new_player);
+ AttachPlayer(*new_player);
cout << "accepted login from player \"" << name << '"' << endl;
auto response = Prepare<Packet::Join>();
- response.WritePlayer(*new_player.entity);
+ response.WritePlayer(new_player->GetEntity());
response.WriteWorldName(server.GetWorld().Name());
Send();
// set up update tracking
- player_update_state = new_player.entity->GetState();
+ player_update_state = new_player->GetEntity().GetState();
player_update_pack = pack.Seq();
player_update_timer.Reset();
player_update_timer.Start();
int pack_diff = int16_t(pack.Seq()) - int16_t(player_update_pack);
bool overdue = player_update_timer.HitOnce();
player_update_timer.Reset();
- if (pack_diff > 0 || overdue) {
- player_update_pack = pack.Seq();
- pack.ReadPlayerState(player_update_state);
- // accept velocity and orientation as "user input"
- PlayerEntity().Velocity(player_update_state.velocity);
- PlayerEntity().Orientation(player_update_state.orient);
+ if (pack_diff <= 0 && !overdue) {
+ // drop old packets if we have a fairly recent state
+ return;
+ }
+ glm::vec3 movement(0.0f);
+ uint8_t new_actions;
+ uint8_t slot;
+
+ player_update_pack = pack.Seq();
+ pack.ReadPredictedState(player_update_state);
+ pack.ReadMovement(movement);
+ pack.ReadActions(new_actions);
+ pack.ReadSlot(slot);
+
+ input->SetMovement(movement);
+ input->TurnHead(player_update_state.pitch - input->GetPitch(), player_update_state.yaw - input->GetYaw());
+ input->SelectInventory(slot);
+
+ if ((new_actions & 0x01) && !(old_actions & 0x01)) {
+ input->StartPrimaryAction();
+ } else if (!(new_actions & 0x01) && (old_actions & 0x01)) {
+ input->StopPrimaryAction();
+ }
+ if ((new_actions & 0x02) && !(old_actions & 0x02)) {
+ input->StartSecondaryAction();
+ } else if (!(new_actions & 0x02) && (old_actions & 0x02)) {
+ input->StopSecondaryAction();
+ }
+ if ((new_actions & 0x04) && !(old_actions & 0x04)) {
+ input->StartTertiaryAction();
+ } else if (!(new_actions & 0x04) && (old_actions & 0x04)) {
+ input->StopTertiaryAction();
+ }
+ old_actions = new_actions;
+}
+
+bool ClientConnection::ChunkInRange(const glm::ivec3 &pos) const noexcept {
+ return HasPlayer() && PlayerChunks().InRange(pos);
+}
+
+void ClientConnection::On(const Packet::Message &pack) {
+ uint8_t type;
+ uint32_t ref;
+ string msg;
+ pack.ReadType(type);
+ pack.ReadReferral(ref);
+ pack.ReadMessage(msg);
+
+ if (type == 1 && HasPlayer()) {
+ server.DispatchMessage(input->GetPlayer(), msg);
}
}
-Server::Server(const Config &conf, World &world)
+Server::Server(
+ const Config::Network &conf,
+ World &world,
+ const World::Config &wc,
+ const WorldSave &save)
: serv_sock(nullptr)
, serv_pack{ -1, nullptr, 0 }
, clients()
, world(world)
-, player_model(nullptr) {
+, spawn_index(world.Chunks().MakeIndex(wc.spawn, 3))
+, save(save)
+, player_model(nullptr)
+, cli(world) {
serv_sock = SDLNet_UDP_Open(conf.port);
if (!serv_sock) {
throw NetError("SDLNet_UDP_Open");
}
Server::~Server() {
+ world.Chunks().UnregisterIndex(spawn_index);
delete[] serv_pack.data;
SDLNet_UDP_Close(serv_sock);
}
}
}
-void Server::SetPlayerModel(const CompositeModel &m) noexcept {
+void Server::SetPlayerModel(const Model &m) noexcept {
player_model = &m;
for (ClientConnection &client : clients) {
client.SetPlayerModel(m);
return player_model;
}
-const CompositeModel &Server::GetPlayerModel() const noexcept {
+const Model &Server::GetPlayerModel() const noexcept {
return *player_model;
}
+Player *Server::JoinPlayer(const string &name) {
+ if (spawn_index.MissingChunks() > 0) {
+ return nullptr;
+ }
+ Player *player = world.AddPlayer(name);
+ if (!player) {
+ return nullptr;
+ }
+ if (save.Exists(*player)) {
+ save.Read(*player);
+ } else {
+ // TODO: spawn
+ }
+ return player;
+}
+
+void Server::SetBlock(Chunk &chunk, int index, const Block &block) {
+ chunk.SetBlock(index, block);
+ // TODO: batch chunk changes
+ auto pack = Packet::Make<Packet::BlockUpdate>(GetPacket());
+ pack.WriteChunkCoords(chunk.Position());
+ pack.WriteBlockCount(uint32_t(1));
+ pack.WriteIndex(index, 0);
+ pack.WriteBlock(chunk.BlockAt(index), 0);
+ GetPacket().len = sizeof(Packet::Header) + Packet::BlockUpdate::GetSize(1);
+ for (ClientConnection &client : clients) {
+ if (client.ChunkInRange(chunk.Position())) {
+ client.Send();
+ }
+ }
+}
+
+void Server::DispatchMessage(Player &player, const string &msg) {
+ if (msg.empty()) {
+ return;
+ }
+ if (msg[0] == '/' && msg.size() > 1 && msg[1] != '/') {
+ cli.Execute(player, msg.substr(1));
+ } else {
+ DistributeMessage(1, player.GetEntity().ID(), msg);
+ }
+}
+
+void Server::DistributeMessage(uint8_t type, uint32_t ref, const string &msg) {
+ auto pack = Packet::Make<Packet::Message>(serv_pack);
+ pack.WriteType(type);
+ pack.WriteReferral(ref);
+ pack.WriteMessage(msg);
+ serv_pack.len = sizeof(Packet::Header) + Packet::Message::GetSize(msg);
+ SendAll();
+}
+
+void Server::SendAll() {
+ for (ClientConnection &client : clients) {
+ client.GetConnection().Send(serv_pack, serv_sock);
+ }
+}
+
}
}
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