src/client/client.cpp

   1 #include "InitialState.hpp"
   2 #include "InteractiveState.hpp"
   3 #include "MasterState.hpp"
   4
   5 #include "../app/Environment.hpp"
   6 #include "../app/init.hpp"
   7 #include "../model/Model.hpp"
   8 #include "../io/WorldSave.hpp"
   9 #include "../world/ChunkIndex.hpp"
  10 #include "../world/ChunkStore.hpp"
  11
  12 #include <iostream>
  13 #include <glm/gtx/io.hpp>
  14
  15 using namespace std;
  16
  17
  18 namespace blank {
  19 namespace client {
  20
  21 InitialState::InitialState(MasterState &master)
  22 : master(master)
  23 , message() {
  24         message.Position(glm::vec3(0.0f), Gravity::CENTER);
  25         message.Set(master.GetEnv().assets.large_ui_font, "logging in");
  26 }
  27
  28 void InitialState::OnEnter() {
  29
  30 }
  31
  32 void InitialState::Handle(const SDL_Event &evt) {
  33         if (evt.type == SDL_QUIT) {
  34                 master.Quit();
  35         }
  36 }
  37
  38 void InitialState::Update(int dt) {
  39         master.Update(dt);
  40 }
  41
  42 void InitialState::Render(Viewport &viewport) {
  43         message.Render(viewport);
  44 }
  45
  46
  47 // TODO: this clutter is a giant mess
  48 InteractiveState::InteractiveState(MasterState &master, uint32_t player_id)
  49 : master(master)
  50 , res()
  51 , sounds()
  52 , save(master.GetEnv().config.GetWorldPath(master.GetWorldConf().name, master.GetConfig().net.host))
  53 , world(res.block_types, master.GetWorldConf())
  54 , player(*world.AddPlayer(master.GetConfig().player.name, player_id))
  55 , hud(master.GetEnv(), master.GetConfig(), player)
  56 , manip(master.GetEnv().audio, sounds, player.GetEntity())
  57 , input(world, player, master.GetClient())
  58 , interface(master.GetConfig(), master.GetEnv().keymap, input, *this)
  59 , chunk_receiver(master.GetClient(), world.Chunks(), save)
  60 , chunk_renderer(player.GetChunks())
  61 , loop_timer(16)
  62 , stat_timer(1000)
  63 , sky(master.GetEnv().loader.LoadCubeMap("skybox"))
  64 , update_status()
  65 , chat(master.GetEnv(), *this, *this)
  66 , time_skipped(0)
  67 , packets_skipped(0) {
  68         if (!save.Exists()) {
  69                 save.Write(master.GetWorldConf());
  70         }
  71         res.Load(master.GetEnv().loader, "default");
  72         if (res.models.size() < 1) {
  73                 throw std::runtime_error("need at least one model to run");
  74         }
  75         res.models[0].Instantiate(player.GetEntity().GetModel());
  76         sounds.Load(master.GetEnv().loader, res.snd_index);
  77         interface.SetInventorySlots(res.block_types.size() - 1);
  78         chunk_renderer.LoadTextures(master.GetEnv().loader, res.tex_index);
  79         chunk_renderer.FogDensity(master.GetWorldConf().fog_density);
  80         loop_timer.Start();
  81         stat_timer.Start();
  82         if (save.Exists(player)) {
  83                 save.Read(player);
  84         }
  85 }
  86
  87 void InteractiveState::OnResume() {
  88         OnFocus();
  89 }
  90
  91 void InteractiveState::OnPause() {
  92         OnBlur();
  93 }
  94
  95 void InteractiveState::OnFocus() {
  96         if (master.GetConfig().input.mouse) {
  97                 master.GetEnv().window.GrabMouse();
  98         }
  99         interface.Unlock();
 100 }
 101
 102 void InteractiveState::OnBlur() {
 103         master.GetEnv().window.ReleaseMouse();
 104         interface.Lock();
 105 }
 106
 107 void InteractiveState::Handle(const SDL_Event &event) {
 108         switch (event.type) {
 109                 case SDL_KEYDOWN:
 110                         // TODO: move to interface
 111                         if (event.key.keysym.sym == SDLK_RETURN) {
 112                                 chat.Clear();
 113                                 master.GetEnv().state.Push(&chat);
 114                                 hud.KeepMessages(true);
 115                         } else if (event.key.keysym.sym == SDLK_SLASH) {
 116                                 chat.Preset("/");
 117                                 master.GetEnv().state.Push(&chat);
 118                                 hud.KeepMessages(true);
 119                         } else {
 120                                 interface.HandlePress(event.key);
 121                         }
 122                         break;
 123                 case SDL_KEYUP:
 124                         interface.HandleRelease(event.key);
 125                         break;
 126                 case SDL_MOUSEBUTTONDOWN:
 127                         interface.HandlePress(event.button);
 128                         break;
 129                 case SDL_MOUSEBUTTONUP:
 130                         interface.HandleRelease(event.button);
 131                         break;
 132                 case SDL_MOUSEMOTION:
 133                         interface.Handle(event.motion);
 134                         break;
 135                 case SDL_MOUSEWHEEL:
 136                         interface.Handle(event.wheel);
 137                         break;
 138                 case SDL_QUIT:
 139                         Exit();
 140                         break;
 141                 default:
 142                         break;
 143         }
 144 }
 145
 146 void InteractiveState::Update(int dt) {
 147         loop_timer.Update(dt);
 148         stat_timer.Update(dt);
 149         master.Update(dt);
 150         chunk_receiver.Update(dt);
 151
 152         int world_dt = 0;
 153         while (loop_timer.HitOnce()) {
 154                 world.Update(loop_timer.Interval());
 155                 world_dt += loop_timer.Interval();
 156                 loop_timer.PopIteration();
 157         }
 158         chunk_renderer.Update(dt);
 159
 160         if (input.BlockFocus()) {
 161                 hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
 162         } else if (input.EntityFocus()) {
 163                 hud.FocusEntity(*input.EntityFocus().entity);
 164         } else {
 165                 hud.FocusNone();
 166         }
 167         if (world_dt > 0) {
 168                 if (input.UpdateImportant() || packets_skipped >= master.NetStat().SuggestedPacketSkip()) {
 169                         input.PushPlayerUpdate(time_skipped + world_dt);
 170                         time_skipped = 0;
 171                         packets_skipped = 0;
 172                 } else {
 173                         time_skipped += world_dt;
 174                         ++packets_skipped;
 175                 }
 176         }
 177         hud.Display(res.block_types[player.GetInventorySlot() + 1]);
 178         if (stat_timer.Hit()) {
 179                 hud.UpdateNetStats(master.NetStat());
 180         }
 181         hud.Update(dt);
 182
 183         glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
 184         glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
 185         glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
 186         master.GetEnv().audio.Position(player.GetEntity().Position());
 187         master.GetEnv().audio.Velocity(player.GetEntity().Velocity());
 188         master.GetEnv().audio.Orientation(dir, up);
 189 }
 190
 191 void InteractiveState::Render(Viewport &viewport) {
 192         viewport.WorldPosition(player.GetEntity().ViewTransform(player.GetEntity().ChunkCoords()));
 193         if (master.GetConfig().video.world) {
 194                 chunk_renderer.Render(viewport);
 195                 world.Render(viewport);
 196                 if (master.GetConfig().video.debug) {
 197                         world.RenderDebug(viewport);
 198                 }
 199                 sky.Render(viewport);
 200         }
 201         hud.Render(viewport);
 202 }
 203
 204 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 205         uint32_t entity_id;
 206         pack.ReadEntityID(entity_id);
 207         Entity &entity = world.ForceAddEntity(entity_id);
 208         UpdateEntity(entity_id, pack.Seq());
 209         pack.ReadEntity(entity);
 210         uint32_t model_id;
 211         pack.ReadModelID(model_id);
 212         if (model_id > 0 && model_id <= res.models.size()) {
 213                 res.models.Get(model_id).Instantiate(entity.GetModel());
 214         }
 215 }
 216
 217 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 218         uint32_t entity_id;
 219         pack.ReadEntityID(entity_id);
 220         ClearEntity(entity_id);
 221         for (Entity &entity : world.Entities()) {
 222                 if (entity.ID() == entity_id) {
 223                         entity.Kill();
 224                         return;
 225                 }
 226         }
 227 }
 228
 229 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 230         auto world_iter = world.Entities().begin();
 231         auto world_end = world.Entities().end();
 232
 233         uint32_t count = 0;
 234         glm::ivec3 base;
 235         pack.ReadEntityCount(count);
 236         pack.ReadChunkBase(base);
 237         EntityState state;
 238
 239         for (uint32_t i = 0; i < count; ++i) {
 240                 uint32_t entity_id = 0;
 241                 pack.ReadEntityID(entity_id, i);
 242
 243                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 244                         ++world_iter;
 245                 }
 246                 if (world_iter == world_end) {
 247                         // nothing can be done from here
 248                         return;
 249                 }
 250                 if (world_iter->ID() == entity_id) {
 251                         if (UpdateEntity(entity_id, pack.Seq())) {
 252                                 pack.ReadEntityState(state, base, i);
 253                                 world_iter->SetState(state);
 254                         }
 255                 }
 256         }
 257 }
 258
 259 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 260         auto entry = update_status.find(entity_id);
 261         if (entry == update_status.end()) {
 262                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 263                 return true;
 264         }
 265
 266         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 267         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 268         entry->second.last_update = loop_timer.Elapsed();
 269
 270         if (pack_diff > 0 || time_diff > 1500) {
 271                 entry->second.last_packet = seq;
 272                 return true;
 273         } else {
 274                 return false;
 275         }
 276 }
 277
 278 void InteractiveState::ClearEntity(uint32_t entity_id) {
 279         update_status.erase(entity_id);
 280 }
 281
 282 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 283         uint16_t pack_seq;
 284         EntityState corrected_state;
 285         pack.ReadPacketSeq(pack_seq);
 286         pack.ReadPlayerState(corrected_state);
 287         input.MergePlayerCorrection(pack_seq, corrected_state);
 288 }
 289
 290 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 291         glm::ivec3 pos;
 292         pack.ReadChunkCoords(pos);
 293         Chunk *chunk = player.GetChunks().Get(pos);
 294         if (!chunk) {
 295                 // this change doesn't concern us
 296                 return;
 297         }
 298         uint32_t count = 0;
 299         pack.ReadBlockCount(count);
 300         for (uint32_t i = 0; i < count; ++i) {
 301                 uint16_t index;
 302                 Block block;
 303                 pack.ReadIndex(index, i);
 304                 pack.ReadBlock(block, i);
 305                 if (index < Chunk::size && block.type < res.block_types.size()) {
 306                         manip.SetBlock(*chunk, index, block);
 307                 }
 308         }
 309 }
 310
 311 void InteractiveState::Handle(const Packet::Message &pack) {
 312         string msg;
 313         pack.ReadMessage(msg);
 314         hud.PostMessage(msg);
 315 }
 316
 317 void InteractiveState::SetAudio(bool b) {
 318         master.GetConfig().audio.enabled = b;
 319         if (b) {
 320                 hud.PostMessage("Audio enabled");
 321         } else {
 322                 hud.PostMessage("Audio disabled");
 323         }
 324 }
 325
 326 void InteractiveState::SetVideo(bool b) {
 327         master.GetConfig().video.world = b;
 328         if (b) {
 329                 hud.PostMessage("World rendering enabled");
 330         } else {
 331                 hud.PostMessage("World rendering disabled");
 332         }
 333 }
 334
 335 void InteractiveState::SetHUD(bool b) {
 336         master.GetConfig().video.hud = b;
 337         if (b) {
 338                 hud.PostMessage("HUD rendering enabled");
 339         } else {
 340                 hud.PostMessage("HUD rendering disabled");
 341         }
 342 }
 343
 344 void InteractiveState::SetDebug(bool b) {
 345         master.GetConfig().video.debug = b;
 346         if (b) {
 347                 hud.PostMessage("Debug rendering enabled");
 348         } else {
 349                 hud.PostMessage("Debug rendering disabled");
 350         }
 351 }
 352
 353 void InteractiveState::Exit() {
 354         save.Write(player);
 355         master.Quit();
 356 }
 357
 358 void InteractiveState::OnLineSubmit(const string &line) {
 359         if (!line.empty()) {
 360                 master.GetClient().SendMessage(1, 0, line);
 361         }
 362 }
 363
 364
 365 MasterState::MasterState(
 366         Environment &env,
 367         Config &config,
 368         const World::Config &wc)
 369 : env(env)
 370 , config(config)
 371 , world_conf(wc)
 372 , state()
 373 , client(config.net)
 374 , init_state(*this)
 375 , login_packet(-1) {
 376         client.GetConnection().SetHandler(this);
 377 }
 378
 379 void MasterState::Quit() {
 380         if (!client.GetConnection().Closed()) {
 381                 client.SendPart();
 382         }
 383         env.state.PopUntil(this);
 384 }
 385
 386
 387 void MasterState::OnEnter() {
 388         login_packet = client.SendLogin(config.player.name);
 389         env.state.Push(&init_state);
 390 }
 391
 392
 393 void MasterState::Handle(const SDL_Event &event) {
 394
 395 }
 396
 397
 398 void MasterState::Update(int dt) {
 399         client.Handle();
 400         client.Update(dt);
 401 }
 402
 403
 404 void MasterState::Render(Viewport &) {
 405
 406 }
 407
 408
 409 void MasterState::OnPacketLost(uint16_t id) {
 410         if (id == login_packet) {
 411                 login_packet = client.SendLogin(config.player.name);
 412         }
 413 }
 414
 415 void MasterState::OnTimeout() {
 416         if (client.GetConnection().Closed()) {
 417                 Quit();
 418                 env.ShowMessage("connection timed out");
 419         }
 420 }
 421
 422 void MasterState::On(const Packet::Join &pack) {
 423         pack.ReadWorldName(world_conf.name);
 424
 425         if (state) {
 426                 // changing worlds
 427                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 428         } else {
 429                 // joining game
 430                 cout << "joined game \"" << world_conf.name << '"' << endl;
 431                 // server received our login
 432                 login_packet = -1;
 433         }
 434
 435         uint32_t player_id;
 436         pack.ReadPlayerID(player_id);
 437         state.reset(new InteractiveState(*this, player_id));
 438
 439         EntityState player_state;
 440         pack.ReadPlayerState(player_state);
 441         state->GetPlayer().GetEntity().SetState(player_state);
 442
 443         env.state.PopAfter(this);
 444         env.state.Push(state.get());
 445 }
 446
 447 void MasterState::On(const Packet::Part &pack) {
 448         Quit();
 449         if (state) {
 450                 // kicked
 451                 env.ShowMessage("kicked by server");
 452         } else {
 453                 // join refused
 454                 env.ShowMessage("login refused by server");
 455         }
 456 }
 457
 458 void MasterState::On(const Packet::SpawnEntity &pack) {
 459         if (!state) {
 460                 cout << "got entity spawn before world was created" << endl;
 461                 return;
 462         }
 463         state->Handle(pack);
 464 }
 465
 466 void MasterState::On(const Packet::DespawnEntity &pack) {
 467         if (!state) {
 468                 cout << "got entity despawn before world was created" << endl;
 469                 return;
 470         }
 471         state->Handle(pack);
 472 }
 473
 474 void MasterState::On(const Packet::EntityUpdate &pack) {
 475         if (!state) {
 476                 cout << "got entity update before world was created" << endl;
 477                 return;
 478         }
 479         state->Handle(pack);
 480 }
 481
 482 void MasterState::On(const Packet::PlayerCorrection &pack) {
 483         if (!state) {
 484                 cout << "got player correction without a player :S" << endl;
 485                 return;
 486         }
 487         state->Handle(pack);
 488 }
 489
 490 void MasterState::On(const Packet::ChunkBegin &pack) {
 491         if (!state) {
 492                 cout << "got chunk data, but the world has not been created yet" << endl;
 493                 cout << "great, this will totally screw up everything :(" << endl;
 494                 return;
 495         }
 496         state->GetChunkReceiver().Handle(pack);
 497 }
 498
 499 void MasterState::On(const Packet::ChunkData &pack) {
 500         if (!state) {
 501                 cout << "got chunk data, but the world has not been created yet" << endl;
 502                 cout << "great, this will totally screw up everything :(" << endl;
 503                 return;
 504         }
 505         state->GetChunkReceiver().Handle(pack);
 506 }
 507
 508 void MasterState::On(const Packet::BlockUpdate &pack) {
 509         if (!state) {
 510                 cout << "received block update, but the world has not been created yet" << endl;
 511                 return;
 512         }
 513         state->Handle(pack);
 514 }
 515
 516 void MasterState::On(const Packet::Message &pack) {
 517         if (state) {
 518                 state->Handle(pack);
 519         } else {
 520                 string msg;
 521                 pack.ReadMessage(msg);
 522                 cout << "got message before interface was created: " << msg << endl;
 523         }
 524 }
 525
 526 }
 527 }