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(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(
 193                 player.GetEntity().Transform(player.GetEntity().ChunkCoords())
 194                 * player.GetEntity().GetModel().EyesTransform());
 195         if (master.GetConfig().video.world) {
 196                 chunk_renderer.Render(viewport);
 197                 world.Render(viewport);
 198                 sky.Render(viewport);
 199         }
 200         hud.Render(viewport);
 201 }
 202
 203 void InteractiveState::Handle(const Packet::SpawnEntity &pack) {
 204         uint32_t entity_id;
 205         pack.ReadEntityID(entity_id);
 206         Entity &entity = world.ForceAddEntity(entity_id);
 207         UpdateEntity(entity_id, pack.Seq());
 208         pack.ReadEntity(entity);
 209         uint32_t model_id;
 210         pack.ReadModelID(model_id);
 211         if (model_id > 0 && model_id <= res.models.size()) {
 212                 res.models.Get(model_id).Instantiate(entity.GetModel());
 213         }
 214 }
 215
 216 void InteractiveState::Handle(const Packet::DespawnEntity &pack) {
 217         uint32_t entity_id;
 218         pack.ReadEntityID(entity_id);
 219         ClearEntity(entity_id);
 220         for (Entity &entity : world.Entities()) {
 221                 if (entity.ID() == entity_id) {
 222                         entity.Kill();
 223                         return;
 224                 }
 225         }
 226 }
 227
 228 void InteractiveState::Handle(const Packet::EntityUpdate &pack) {
 229         auto world_iter = world.Entities().begin();
 230         auto world_end = world.Entities().end();
 231
 232         uint32_t count = 0;
 233         glm::ivec3 base;
 234         pack.ReadEntityCount(count);
 235         pack.ReadChunkBase(base);
 236         EntityState state;
 237
 238         for (uint32_t i = 0; i < count; ++i) {
 239                 uint32_t entity_id = 0;
 240                 pack.ReadEntityID(entity_id, i);
 241
 242                 while (world_iter != world_end && world_iter->ID() < entity_id) {
 243                         ++world_iter;
 244                 }
 245                 if (world_iter == world_end) {
 246                         // nothing can be done from here
 247                         return;
 248                 }
 249                 if (world_iter->ID() == entity_id) {
 250                         if (UpdateEntity(entity_id, pack.Seq())) {
 251                                 pack.ReadEntityState(state, base, i);
 252                                 world_iter->SetState(state);
 253                         }
 254                 }
 255         }
 256 }
 257
 258 bool InteractiveState::UpdateEntity(uint32_t entity_id, uint16_t seq) {
 259         auto entry = update_status.find(entity_id);
 260         if (entry == update_status.end()) {
 261                 update_status.emplace(entity_id, UpdateStatus{ seq, loop_timer.Elapsed() });
 262                 return true;
 263         }
 264
 265         int16_t pack_diff = int16_t(seq) - int16_t(entry->second.last_packet);
 266         int time_diff = loop_timer.Elapsed() - entry->second.last_update;
 267         entry->second.last_update = loop_timer.Elapsed();
 268
 269         if (pack_diff > 0 || time_diff > 1500) {
 270                 entry->second.last_packet = seq;
 271                 return true;
 272         } else {
 273                 return false;
 274         }
 275 }
 276
 277 void InteractiveState::ClearEntity(uint32_t entity_id) {
 278         update_status.erase(entity_id);
 279 }
 280
 281 void InteractiveState::Handle(const Packet::PlayerCorrection &pack) {
 282         uint16_t pack_seq;
 283         EntityState corrected_state;
 284         pack.ReadPacketSeq(pack_seq);
 285         pack.ReadPlayerState(corrected_state);
 286         input.MergePlayerCorrection(pack_seq, corrected_state);
 287 }
 288
 289 void InteractiveState::Handle(const Packet::BlockUpdate &pack) {
 290         glm::ivec3 pos;
 291         pack.ReadChunkCoords(pos);
 292         Chunk *chunk = player.GetChunks().Get(pos);
 293         if (!chunk) {
 294                 // this change doesn't concern us
 295                 return;
 296         }
 297         uint32_t count = 0;
 298         pack.ReadBlockCount(count);
 299         for (uint32_t i = 0; i < count; ++i) {
 300                 uint16_t index;
 301                 Block block;
 302                 pack.ReadIndex(index, i);
 303                 pack.ReadBlock(block, i);
 304                 if (index < Chunk::size && block.type < res.block_types.size()) {
 305                         manip.SetBlock(*chunk, index, block);
 306                 }
 307         }
 308 }
 309
 310 void InteractiveState::Handle(const Packet::Message &pack) {
 311         string msg;
 312         pack.ReadMessage(msg);
 313         hud.PostMessage(msg);
 314 }
 315
 316 void InteractiveState::SetAudio(bool b) {
 317         master.GetConfig().audio.enabled = b;
 318         if (b) {
 319                 hud.PostMessage("Audio enabled");
 320         } else {
 321                 hud.PostMessage("Audio disabled");
 322         }
 323 }
 324
 325 void InteractiveState::SetVideo(bool b) {
 326         master.GetConfig().video.world = b;
 327         if (b) {
 328                 hud.PostMessage("World rendering enabled");
 329         } else {
 330                 hud.PostMessage("World rendering disabled");
 331         }
 332 }
 333
 334 void InteractiveState::SetHUD(bool b) {
 335         master.GetConfig().video.hud = b;
 336         if (b) {
 337                 hud.PostMessage("HUD rendering enabled");
 338         } else {
 339                 hud.PostMessage("HUD rendering disabled");
 340         }
 341 }
 342
 343 void InteractiveState::SetDebug(bool b) {
 344         master.GetConfig().video.debug = b;
 345         if (b) {
 346                 hud.PostMessage("Debug rendering enabled");
 347         } else {
 348                 hud.PostMessage("Debug rendering disabled");
 349         }
 350 }
 351
 352 void InteractiveState::Exit() {
 353         save.Write(player);
 354         master.Quit();
 355 }
 356
 357 void InteractiveState::OnLineSubmit(const string &line) {
 358         if (!line.empty()) {
 359                 master.GetClient().SendMessage(1, 0, line);
 360         }
 361 }
 362
 363
 364 MasterState::MasterState(
 365         Environment &env,
 366         Config &config,
 367         const World::Config &wc)
 368 : env(env)
 369 , config(config)
 370 , world_conf(wc)
 371 , state()
 372 , client(config.net)
 373 , init_state(*this)
 374 , login_packet(-1) {
 375         client.GetConnection().SetHandler(this);
 376 }
 377
 378 void MasterState::Quit() {
 379         if (!client.GetConnection().Closed()) {
 380                 client.SendPart();
 381         }
 382         env.state.PopUntil(this);
 383 }
 384
 385
 386 void MasterState::OnEnter() {
 387         login_packet = client.SendLogin(config.player.name);
 388         env.state.Push(&init_state);
 389 }
 390
 391
 392 void MasterState::Handle(const SDL_Event &event) {
 393
 394 }
 395
 396
 397 void MasterState::Update(int dt) {
 398         client.Handle();
 399         client.Update(dt);
 400 }
 401
 402
 403 void MasterState::Render(Viewport &) {
 404
 405 }
 406
 407
 408 void MasterState::OnPacketLost(uint16_t id) {
 409         if (id == login_packet) {
 410                 login_packet = client.SendLogin(config.player.name);
 411         }
 412 }
 413
 414 void MasterState::OnTimeout() {
 415         if (client.GetConnection().Closed()) {
 416                 Quit();
 417                 env.ShowMessage("connection timed out");
 418         }
 419 }
 420
 421 void MasterState::On(const Packet::Join &pack) {
 422         pack.ReadWorldName(world_conf.name);
 423
 424         if (state) {
 425                 // changing worlds
 426                 cout << "server changing worlds to \"" << world_conf.name << '"' << endl;
 427         } else {
 428                 // joining game
 429                 cout << "joined game \"" << world_conf.name << '"' << endl;
 430                 // server received our login
 431                 login_packet = -1;
 432         }
 433
 434         uint32_t player_id;
 435         pack.ReadPlayerID(player_id);
 436         state.reset(new InteractiveState(*this, player_id));
 437
 438         EntityState player_state;
 439         pack.ReadPlayerState(player_state);
 440         state->GetPlayer().GetEntity().SetState(player_state);
 441
 442         env.state.PopAfter(this);
 443         env.state.Push(state.get());
 444 }
 445
 446 void MasterState::On(const Packet::Part &pack) {
 447         Quit();
 448         if (state) {
 449                 // kicked
 450                 env.ShowMessage("kicked by server");
 451         } else {
 452                 // join refused
 453                 env.ShowMessage("login refused by server");
 454         }
 455 }
 456
 457 void MasterState::On(const Packet::SpawnEntity &pack) {
 458         if (!state) {
 459                 cout << "got entity spawn before world was created" << endl;
 460                 return;
 461         }
 462         state->Handle(pack);
 463 }
 464
 465 void MasterState::On(const Packet::DespawnEntity &pack) {
 466         if (!state) {
 467                 cout << "got entity despawn before world was created" << endl;
 468                 return;
 469         }
 470         state->Handle(pack);
 471 }
 472
 473 void MasterState::On(const Packet::EntityUpdate &pack) {
 474         if (!state) {
 475                 cout << "got entity update before world was created" << endl;
 476                 return;
 477         }
 478         state->Handle(pack);
 479 }
 480
 481 void MasterState::On(const Packet::PlayerCorrection &pack) {
 482         if (!state) {
 483                 cout << "got player correction without a player :S" << endl;
 484                 return;
 485         }
 486         state->Handle(pack);
 487 }
 488
 489 void MasterState::On(const Packet::ChunkBegin &pack) {
 490         if (!state) {
 491                 cout << "got chunk data, but the world has not been created yet" << endl;
 492                 cout << "great, this will totally screw up everything :(" << endl;
 493                 return;
 494         }
 495         state->GetChunkReceiver().Handle(pack);
 496 }
 497
 498 void MasterState::On(const Packet::ChunkData &pack) {
 499         if (!state) {
 500                 cout << "got chunk data, but the world has not been created yet" << endl;
 501                 cout << "great, this will totally screw up everything :(" << endl;
 502                 return;
 503         }
 504         state->GetChunkReceiver().Handle(pack);
 505 }
 506
 507 void MasterState::On(const Packet::BlockUpdate &pack) {
 508         if (!state) {
 509                 cout << "received block update, but the world has not been created yet" << endl;
 510                 return;
 511         }
 512         state->Handle(pack);
 513 }
 514
 515 void MasterState::On(const Packet::Message &pack) {
 516         if (state) {
 517                 state->Handle(pack);
 518         } else {
 519                 string msg;
 520                 pack.ReadMessage(msg);
 521                 cout << "got message before interface was created: " << msg << endl;
 522         }
 523 }
 524
 525 }
 526 }